Agreement and Plan of Merger, dated as of June 22, 2023, by and among Talaris Therapeutics, Inc., Terrain Merger Sub, Inc. and Tourmaline Bio, Inc

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Exhibits:

AGREEMENT AND PLAN OF MERGER

THIS AGREEMENT AND PLAN OF MERGER (this “Agreement”) is made and entered into as of June 22, 2023, by and among TALARIS THERAPEUTICS, INC., a Delaware corporation (“Terrain”), TERRAIN MERGER SUB, INC., a Delaware corporation and direct wholly owned subsidiary of Terrain (“Merger Sub”), and TOURMALINE BIO, INC., a Delaware corporation (the “Company”). Certain capitalized terms used in this Agreement are defined in Section 1.

RECITALS

A. Terrain and the Company intend to effect a merger of Merger Sub with and into the Company (the “Merger”) in accordance with this Agreement and the DGCL. Upon consummation of the Merger, Merger Sub will cease to exist and the Company will become a direct wholly owned subsidiary of Terrain.

B. Each of the Parties, and any Affiliate thereof, intend that the Merger qualify as a tax free “reorganization” within the meaning of Section 368(a) of the Code and that this Agreement constitute a “plan of reorganization” within the meaning of Treasury Regulations Sections 1.368-2(g) and 1.368-3 (the “Intended Tax Treatment”).

C. The Terrain Board has (i) determined that the Contemplated Transactions are fair to, advisable and in the best interests of Terrain and its stockholders, (ii) approved and declared advisable this Agreement and the Contemplated Transactions, including the issuance of shares of Terrain Common Stock to the stockholders of the Company pursuant to the terms of this Agreement and (iii) determined to recommend, upon the terms and subject to the conditions set forth in this Agreement, that the stockholders of Terrain vote to approve the Terrain Stockholder Matters and such other actions as contemplated by this Agreement.

D. The Merger Sub Board has (i) determined that the Contemplated Transactions are fair to, advisable, and in the best interests of Merger Sub and its sole stockholder, (ii) approved and declared advisable this Agreement and the Contemplated Transactions and (iii) determined to recommend, upon the terms and subject to the conditions set forth in this Agreement, that the stockholder of Merger Sub vote to adopt this Agreement and thereby approve the Contemplated Transactions.

E. The Company Board has (i) determined that the Contemplated Transactions are fair to, advisable and in the best interests of the Company and its stockholders, (ii) approved and declared advisable this Agreement and the Contemplated Transactions and (iii) determined to recommend, upon the terms and subject to the conditions set forth in this Agreement, that the stockholders of the Company vote to adopt this Agreement and thereby approve the Contemplated Transactions.

F. Concurrently with the execution and delivery of this Agreement and as a condition and inducement to the Company’s willingness to enter into this Agreement, the officers and directors of Terrain (solely in their capacity as stockholders of Terrain) and certain stockholders of Terrain are executing support agreements in favor of the Company in substantially the form attached hereto as Exhibit A (the “Terrain Stockholder Support Agreement”), pursuant to which such Persons have, subject to the terms and conditions set forth therein, agreed to vote all of their shares of capital stock of Terrain in favor of the Terrain Stockholder Matters and such other actions as contemplated therein.

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G. Concurrently with the execution and delivery of this Agreement and as a condition and inducement to Terrain’s willingness to enter into this Agreement, the officers, directors and 5% or greater stockholders (together with their Affiliates) of the Company listed on Section A of the Company Disclosure Schedule (solely in their capacity as stockholders of the Company) are executing support agreements in favor of Terrain in substantially the form attached hereto as Exhibit B (the “Company Stockholder Support Agreement”), pursuant to which such Persons have, subject to the terms and conditions set forth therein, agreed to vote all of their shares of Company Capital Stock in favor of the Contemplated Transactions.

H. Concurrently with the execution and delivery of this Agreement and as a condition and inducement to Terrain’s willingness to enter into this Agreement, the officers, directors and stockholders of the Company listed on Section A of the Company Disclosure Schedule are executing lock-up agreements in substantially the form attached hereto as Exhibit C (collectively, the “Company Lock-Up Agreements”).

I. Concurrently with the closing of the Merger, certain directors of Terrain that are continuing in such role following the Merger will be executing lock-up agreements in substantially the form attached hereto as Exhibit C (collectively, the “Terrain Lock-Up Agreements”).

J. It is expected that within five (5) Business Days after the Registration Statement is declared effective under the Securities Act, the holders of shares of Company Capital Stock sufficient to adopt and approve this Agreement and the Merger as required under the DGCL and the Company’s certificate of incorporation and bylaws will execute and deliver an action by written consent adopting this Agreement, in form and substance reasonably acceptable to Terrain, in order to obtain the Required Company Stockholder Vote (each, a “Company Stockholder Written Consent” and collectively, the “Company Stockholder Written Consents”).

K. Contemporaneously with the execution and delivery of this Agreement, certain investors have executed that certain securities purchase agreement with the Company, pursuant to which such investors have agreed to purchase certain shares of Company Capital Stock prior to the Closing in connection with the Company Pre-Closing Financing.

AGREEMENT

The Parties, intending to be legally bound, agree as follows:

Section 1. Definitions and Interpretative Provisions.

1.1 Definitions.

a) For purposes of the Agreement (including this Section 1):

“Acceptable Confidentiality Agreement” means a confidentiality agreement containing terms not materially less restrictive in the aggregate to the counterparty thereto than the terms of the Confidentiality Agreement, except such confidentiality agreement need not contain any non-solicitation or no hire provisions.

“Acquisition Inquiry” means, with respect to a Party, an inquiry, indication of interest or request for information (other than an inquiry, indication of interest or request for information made or submitted by the Company, on the one hand, or Terrain, on the other hand, to the other Party) that could reasonably be expected to lead to an Acquisition Proposal.

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“Acquisition Proposal” means, with respect to a Party, any offer or proposal, whether written or oral (other than an offer or proposal made or submitted by or on behalf of the Company or any of its Affiliates, on the one hand, or by or on behalf of Terrain or any of its Affiliates, on the other hand, to the other Party) contemplating or otherwise relating to any Acquisition Transaction with such Party.

“Acquisition Transaction” means any transaction or series of related transactions involving (other than a Terrain Legacy Transaction, in the case of Terrain, and the Pre-Closing Financing, in the case of the Company):

(a) any merger, consolidation, amalgamation, share exchange, business combination, issuance of securities, acquisition of securities, reorganization, recapitalization, tender offer, exchange offer or other transaction: (i) in which a Party is a constituent Entity, (ii) in which a Person or “group” (as defined in the Exchange Act and the rules promulgated thereunder) of Persons directly or indirectly acquires beneficial or record ownership of securities representing more than 15% of the outstanding securities of any class of voting securities of a Party or any of its Subsidiaries or (iii) in which a Party or any of its Subsidiaries issues securities representing more than 15% of the outstanding securities of any class of voting securities of such Party or any of its Subsidiaries; or

(b) any sale, lease, exchange, transfer, license, acquisition or disposition of any business or businesses or assets that constitute or account for 15% or more of the consolidated book value or the fair market value of the assets of a Party and its Subsidiaries, taken as a whole.

“Affiliate” shall have the meaning given to such term in Rule 145 under the Securities Act.

“Aggregate Cash and Tax Amount” means the Aggregate Cash Amount plus the Terrain Transaction Payroll Taxes.

“Allocation Certificate” shall have the meaning set forth in Section 6.16(a).

“Anticipated Closing Date” means the anticipated Closing Date, as agreed upon by Terrain and the Company at least fifteen (15) days prior to the Terrain Stockholder Meeting (the “Determination Date”).

“Business Day” means any day other than a day on which banks in the State of New York are authorized or obligated to be closed.

“Cash” means the aggregate amount of Terrain unrestricted cash.

“COBRA” means the Consolidated Omnibus Budget Reconciliation Act of 1985, as set forth in Section 4980B of the Code and Part 6 of Title I of ERISA, and as amended.

“Code” means the Internal Revenue Code of 1986, as amended.

“Company Associate” means any current or former employee, independent contractor, officer or director of the Company or any of its Subsidiaries.

“Company Board” means the board of directors of the Company.

“Company Capital Stock” means the Company Common Stock and the Company Preferred Stock.

“Company Capitalization Representations” means the representations and warranties of the Company set forth in Sections 3.6(a), 3.6(b) and 3.6(d).

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“Company Common Stock” means the common stock, $0.0001 par value per share, of the Company.

“Company Contract” means any Contract: (a) to which the Company or any of its Subsidiaries is a Party, (b) by which the Company or any of its Subsidiaries is or may become bound or under which the Company or any of its Subsidiaries has, or may become subject to, any obligation or (c) under which the Company or any of its Subsidiaries has or may acquire any right or interest.

“Company Employee Plan” means any Employee Plan that the Company or any of its Subsidiaries sponsors, contributes to, or provides benefits under or through such plan, or has any obligation to contribute to or provide benefits under or through such plan, or if such plan provides benefits to or otherwise covers any current or former employee, officer, director or other service provider of the Company or any of its Subsidiaries (or their spouses, dependents, or beneficiaries).

“Company Fundamental Representations” means the representations and warranties of the Company set forth in Sections 3.1, 3.2, 3.3, 3.4 and 3.21.

“Company Intervening Event” means any material Effect or material change in circumstances with respect to the Company that (a) was not known or reasonably foreseeable to the Company Board as of the date of this Agreement (or if known to the Company Board as of the date hereof, the consequences of which were not known or reasonably foreseeable to the Company Board as of the date of this Agreement) and (b) does not relate to any Acquisition Proposal; provided, that none of the following, either alone or in combination, shall constitute a “Company Intervening Event”: (i) any inquiry with respect to a business combination or acquisition opportunity, (ii) any Effect resulting from a breach of this Agreement by the Company or (iii) the fact, in and of itself, that the Company exceeds any internal or published projections, estimates or expectations of the Company’s revenue, earnings or other financial or operating metrics for any period ending on or after the date of this Agreement (provided that the exception in this clause (iii) shall not prevent or otherwise affect consideration of any such development or change that causes the Company meeting or exceeding such metrics from being taken into account in determining whether a Company Intervening Event has occurred).

“Company IP Rights” means all Intellectual Property owned, licensed, or controlled by the Company or its Subsidiaries that is necessary for or used in the operation of the business of the Company and its Subsidiaries as presently conducted.

“Company IP Rights Agreement” means any instrument or agreement governing, related to or pertaining to any Company IP Rights.

“Company Material Adverse Effect” means any Effect that, considered together with all other Effects that have occurred prior to the date of determination of the occurrence of a Company Material Adverse Effect, has or would reasonably be expected to have a material adverse effect on the business, financial condition, assets, liabilities or results of operations of the Company or its Subsidiaries, taken as a whole; provided, however, that Effects arising or resulting from the following shall not be taken into account in determining whether there has been a Company Material Adverse Effect: (a) the announcement of the Agreement or the pendency of the Contemplated Transactions; provided, that this clause (a) shall not apply to any representation or warranty set forth in Section 3.5, Section 3.6(c) or 3.17(m), (b) the taking of any action, or the failure to take any action, by the Company that is required to comply with the terms of the Agreement, (c) any natural disaster or any act or threat of terrorism or war anywhere in the world, any armed hostilities or terrorist activities anywhere in the world, any threat or escalation or armed hostilities or terrorist activities anywhere in the world or any governmental or other response or reaction to any of the foregoing, (d) any epidemic or pandemic in the United States or any other country or region in the world,

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or any escalation of the foregoing, (e) any change in GAAP or applicable Law or the interpretation thereof, (f) general economic or political conditions or conditions generally affecting the industries in which the Company and its Subsidiaries operate or (g) any change in the cash position of the Company and its Subsidiaries which results from operations in the Ordinary Course of Business; except in each case with respect to clauses (c), (d), (e) and (f), to the extent disproportionately affecting the Company and its Subsidiaries, taken as a whole, relative to other similarly situated companies in the industries in which the Company and its Subsidiaries operate.

“Company Options” means options or other rights to purchase shares of Company Capital Stock issued by the Company.

“Company Registered IP” means all Company IP Rights that are owned or exclusively licensed by the Company that are registered, filed or issued under the authority of, with or by any Governmental Authority, including all patents, registered copyrights and registered trademarks and all applications and registrations for any of the foregoing.

“Company Stockholder Support Agreements” shall have the meaning set forth in the recitals.

“Company Stockholder Written Consent” shall have the meaning set forth in the recitals.

“Company Triggering Event” shall be deemed to have occurred: (a) upon any Company Board Adverse Recommendation Change or if the Company Board approved, endorsed or recommended any Acquisition Proposal, (b) if the Company shall have entered into any Contract relating to any Acquisition Proposal (other than an Acceptable Confidentiality Agreement permitted pursuant to Section 5.4) or (c) upon willful and material breach of the Company’s obligations set forth in Section 5.4.

“Company Unaudited Interim Balance Sheet” means the unaudited consolidated balance sheet of the Company and its consolidated Subsidiaries as of March 31, 2023 provided to Terrain prior to the date of the Agreement.

“Confidentiality Agreement” means the Confidentiality Agreement dated March 18, 2023, between the Company and Terrain.

“Consent” means any approval, consent, ratification, permission, waiver or authorization (including any Governmental Authorization).

“Contemplated Transactions” means the Merger and the other transactions contemplated by the Agreement, including the Terrain Closing Cash Dividend, the Pre-Closing Financing and the Reverse Stock Split.

“Continuing Employee” means each employee of Terrain as of immediately prior to the Effective Time who continues to remain employed by Terrain or a Subsidiary thereof (including the Company) immediately following the Effective Time.

“Contract” means, with respect to any Person, any written agreement, contract, subcontract, lease (whether for real or personal property), mortgage, license, or other legally binding commitment or undertaking of any nature to which such Person is a party or by which such Person or any of its assets are bound or affected under applicable Law.

“Determination Date” has the meaning set forth in the definition of “Anticipated Closing Date.”

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“DGCL” means the General Corporation Law of the State of Delaware.

“Effect” means any effect, change, event, circumstance, or development.

“Employee Plan” means (A) an employee benefit plan within the meaning of Section 3(3) of ERISA whether or not subject to ERISA; (B) stock option plans, stock purchase plans, bonus (including annual bonus and retention bonus) or incentive plans, severance pay plans, programs or arrangements, deferred compensation arrangements or agreements, employment agreements, compensation plans, programs, agreements or arrangements, change in control plans, programs or arrangements, supplemental income arrangements, vacation plans, and all other employee benefit plans, agreements, and arrangements, not described in (A) above; and (C) plans or arrangements providing compensation to employee and non-employee directors.

“Encumbrance” means any lien, pledge, hypothecation, charge, mortgage, security interest, lease, license, option, easement, reservation, servitude, adverse title, claim, infringement, interference, option, right of first refusal, preemptive right, community property interest or restriction or encumbrance of any nature (including any restriction on the voting of any security, any restriction on the transfer of any security or other asset, any restriction on the receipt of any income derived from any asset, any restriction on the use of any asset and any restriction on the possession, exercise or transfer of any other attribute of ownership of any asset).

“Enforceability Exceptions” means the (a) Laws of general application relating to bankruptcy, insolvency and the relief of debtors and (b) rules of law governing specific performance, injunctive relief and other equitable remedies.

“Entity” means any corporation (including any non-profit corporation), partnership (including any general partnership, limited partnership or limited liability partnership), joint venture, estate, trust, company (including any company limited by shares, limited liability company or joint stock company), firm, society or other enterprise, association, organization or entity, and each of its successors.

“Environmental Law” means any federal, state, local or foreign Law relating to pollution or protection of human health or the environment (including ambient air, surface water, ground water, land surface or subsurface strata), including any law or regulation relating to emissions, discharges, releases or threatened releases of Hazardous Materials, or otherwise relating to the manufacture, processing, distribution, use, treatment, storage, disposal, transport or handling of Hazardous Materials.

“ERISA” means the Employee Retirement Income Security Act of 1974, as amended.

“ERISA Affiliate” means, with respect to any Entity, any other entity, trade or business that is, or at any applicable time was, a member of a group described in Section 414(b), (c), (m) or (o) of the Code or Section 4001(b)(1) of ERISA that includes such Entity.

“Exchange Act” means the Securities Exchange Act of 1934.

“Exchange Ratio” means, subject to Section 2.5(f), the following ratio (rounded to four decimal places): the quotient obtained by dividing (a) the Company Merger Shares by (b) the Company Outstanding Shares, in which:

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Set forth on Section 1.1(a)(i) of the Terrain Disclosure Schedule is an illustrative example of Exchange Ratio calculations.

“Exclusivity Agreement” means the letter agreement dated April 24, 2023, between the Company and Terrain, as amended or modified from time to time.

“Federal Health Care Program” means any federal health program as defined in 42 U.S.C. § 1320a-7b(f), including Medicare, Medicaid, TRICARE, CHAMPVA, and state healthcare programs (as defined therein).

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“Governmental Authority” means any: (a) nation, state, commonwealth, province, territory, county, municipality, district or other jurisdiction of any nature, (b) federal, state, local, municipal, supra-national, foreign or other government, (c) governmental or quasi-governmental authority of any nature (including any governmental division, department, agency, commission, bureau, instrumentality, official, ministry, fund, foundation, center, organization, unit, body or Entity and any court or other tribunal, and for the avoidance of doubt, any Tax authority) or (d) self-regulatory organization (including Nasdaq).

“Governmental Authorization” means any: (a) permit, license, certificate, franchise, permission, variance, exception, order, clearance, registration, qualification, approval or authorization issued, granted, given or otherwise made available by or under the authority of any Governmental Authority or pursuant to any Law or (b) right under any Contract with any Governmental Authority.

“Hazardous Materials” means any pollutant, chemical, substance and any toxic, infectious, carcinogenic, reactive, corrosive, ignitable or flammable chemical, or chemical compound, or hazardous substance, material or waste, whether solid, liquid or gas, that is subject to regulation, control or remediation under any Environmental Law, including without limitation, crude oil or any fraction thereof, and petroleum products or by-products.

“Health Care Laws” means all applicable Laws and implementing regulations pertaining to U.S. health care regulatory matters to the extent applicable, including as amended from time to time, any such Law pertaining to: (a) the Federal Food, Drug, and Cosmetic Act (21 U.S.C. § 301 et seq.), the Public Health Service Act (42 U.S.C. §262 et seq.) and the regulations promulgated thereunder, (b) any Federal Health Care Program, including those pertaining to providers of goods or services that are paid for by any Federal Health Care Program, including, the False Claims Act, as amended (31 U.S.C. §§ 3729 et seq.), the criminal False Claims Law (42 U.S.C. § 1320a-7b(a)), the Federal Anti-kickback statute (42 U.S.C. § 1320a-7b(b)), the Anti-Kickback Act of 1986 (41 U.S.C. §§ 51-58), the federal Stark Law (42 U.S.C. § 1395nn), the federal False Statements Statute (42 U.S.C. § 1320a-7b(a)), the Exclusion Law (42 U.S.C. § 1320a-7), the Beneficiary Inducement Statute (42 U.S.C. § 1320a-7a(a)(5)), the Federal Program Fraud Civil Remedies Act (31 U.S.C. §§3801-3812), HIPAA (as defined below), the Civil Monetary Penalties Law (42 U.S.C. § 1320a-7a and 1320a-7b), the Physician Payment Sunshine Act (42 U.S.C. § 1320a-7h), (c) Medicare (Title XVIII of the Social Security Act), Medicaid (Title XIX of the Social Security Act), the Medicare and Medicaid Program Integrity Provisions (42 U.S.C. §1320a-7k(d)), TRICARE (d) the Patient Protection and Affordable Care Act (P.L. 111-1468), (e) the Health Care and Education Reconciliation Act of 2010 (P.L. 111-152), (f) accreditation standards and requirements for health care and related services, products, clinicians, and facilities issued by all applicable Governmental Authorities, (g) any and all applicable Laws pertaining to pharmaceutical, biological and medical device products, (h) any and all other applicable comparable state and foreign Laws, and (i) all regulations promulgated pursuant to the foregoing, each of (a) through (i) as amended or modified from time to time.

“HIPAA” means the following, as the same may be amended, modified or supplemented from time to time, and any successor statute thereto, and any and all rules or regulations promulgated from time to time thereunder: (i) the Health Insurance Portability and Accountability Act of 1996; (ii) the Health Information Technology for Economic and Clinical Health Act (Title XIII of the American Recovery and Reinvestment Act of 2009); and (iii) applicable state Laws regarding patient privacy and the security, exchange, use or disclosure of health care records or protected health information (as defined by the Health Insurance Portability and Accountability Act of 1996).

“Intellectual Property” means (a) United States, foreign and international patents, patent applications, including all provisionals, nonprovisionals, substitutions, divisionals, continuations, continuations-in-part, reissues, extensions, supplementary protection certificates, reexaminations, term extensions, certificates of invention and the equivalents of any of the foregoing, statutory invention registrations, invention disclosures and inventions (collectively, “Patents”), (b) trademarks, service marks, trade names, domain names, corporate names, brand names, URLs, trade dress, logos and other source

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identifiers, including registrations and applications for registration thereof, (c) copyrights, including registrations and applications for registration thereof, (d) software, including all source code, object code and related documentation, formulae, customer lists, trade secrets, know-how, confidential information and other proprietary rights and intellectual property, whether patentable or not and (e) all United States and foreign rights arising under or associated with any of the foregoing.

“IRS” means the United States Internal Revenue Service.

“Key Employee” means, with respect to the Company or Terrain, an executive officer of such Party or any employee of such Party that reports directly to the board of directors of such Party or to the Chief Executive Officer or Chief Accounting Officer of such Party.

“Knowledge” means, with respect to an individual, that such individual is actually aware of the relevant fact or such individual would reasonably be expected to know such fact in the ordinary course of the performance of such individual’s employment responsibilities. Any Person that is an Entity shall have Knowledge if any executive officer or director of such Person as of the date such knowledge is imputed has or should reasonably be expected to have Knowledge of such fact or other matter.

“Law” means any federal, state, national, supra-national, foreign, local or municipal or other law, statute, constitution, principle of common law, resolution, ordinance, code, edict, decree, rule, regulation, ruling or requirement issued, enacted, adopted, promulgated, implemented or otherwise put into effect by or under the authority of any Governmental Authority (including under the authority of Nasdaq or the Financial Industry Regulatory Authority).

“Legal Proceeding” means any action, suit, litigation, arbitration, proceeding (including any civil, criminal, administrative, investigative or appellate proceeding), hearing, inquiry, audit, examination or investigation commenced, brought, conducted or heard by or before, or otherwise involving, any court or other Governmental Authority or any arbitrator or arbitration panel.

“Merger Sub Board” means the board of directors of Merger Sub.

“Multiemployer Plan” means a “multiemployer plan,” as defined in Section 3(37) of ERISA.

“Multiple Employer Plan” means a “multiple employer plan” within the meaning of Section 413(c) of the Code or Section 3(40) of ERISA.

“Multiple Employer Welfare Arrangement” means a “multiple employer welfare arrangement” within the meaning of Section 3(40) of ERISA.

“Nasdaq” means The Nasdaq Stock Market.

“Net Cash” means as of the Determination Time and, as applicable, determined in a manner consistent with the manner in which such items were historically determined and in accordance with Terrain’s audited financial statements and unaudited interim balance sheet, (i) the sum of (without duplication) Terrain’s Cash, marketable securities, and accounts, interest and other receivables and deposits (to the extent refundable to Terrain) minus (ii) the sum of (without duplication) all accounts payable and accrued expenses (other than accrued expenses which are Terrain’s Transaction Costs) and other current liabilities payable in cash or other obligation for borrowed money minus (iii) all of Terrain’s unpaid Transaction Costs minus (iv) all payables or obligations, whether absolute, contingent or otherwise, related to Terrain’s lease obligations (net of any rights of Terrain to receive payments relating to the property subject to such lease obligation under a sublease or otherwise) minus (v) all unpaid costs and expenses

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relating to the winding down of Terrain’s prior research and development activities (other than those covered as accrued expenses under clause (ii)) plus (vi) all prepaid Terrain expenses incurred in the ordinary Course of Business consistent with its historic practice, in each case, approved in writing by the Company (which approval shall not be unreasonably withheld) minus (vii) the aggregate costs for obtaining the D&O tail insurance policy under Section 6.8(d) minus (viii) the amount of the Terrain Legacy Proceeds minus (ix) all amounts payable or reasonably expected to be paid by Terrain from and after the Effective Time in connection with any Legal Proceeding relating to the matters described on Section 1.1(a)(ii) of the Terrain Disclosure Schedule, with such amounts jointly determined by Terrain and the Company in good faith. Notwithstanding the foregoing, Net Cash shall be increased by an amount equal to 50% of the settlement costs incurred in connection with any Transaction Litigation.

“Order” means any judgment, order, writ, injunction, ruling, decision or decree of (that is binding on a Party), or any plea agreement, corporate integrity agreement, resolution agreement, or deferred prosecution agreement with, or any settlement under the jurisdiction of, any court or Governmental Authority.

“Ordinary Course of Business” means, in the case of each of the Company and Terrain, such actions taken in the ordinary course of its normal operations; provided, however, that during the Pre-Closing Period, the Ordinary Course of Business of Terrain shall also include actions required to effect and effecting, in one or more transactions, a Terrain Legacy Transaction to the extent such actions were not taken in violation of any express prohibition in this Merger Agreement.

“Organizational Documents” means, with respect to any Person (other than an individual), (a) the certificate or articles of association or incorporation or organization or limited partnership or limited liability company, and any joint venture, limited liability company, operating or partnership agreement and other similar documents adopted or filed in connection with the creation, formation or organization of such Person and (b) all bylaws, regulations and similar documents or agreements relating to the organization or governance of such Person, in each case, as amended or supplemented.

“Party” or “Parties” means the Company, Merger Sub and Terrain.

“Paying Agent” means a paying agent selected by Terrain, reasonably acceptable to the Company, to act as paying agent for the Contemplated Transactions.

“Permitted Encumbrance” means (a) any liens for current Taxes not yet due and payable or for Taxes that are being contested in good faith and for which adequate reserves have been made on the Company Unaudited Interim Balance Sheet or the Terrain Unaudited Interim Balance Sheet, as applicable, in accordance with GAAP (b) minor liens that have arisen in the Ordinary Course of Business and that do not (in any case or in the aggregate) materially detract from the value of the assets subject thereto or materially impair the operations of the Company or any of its Subsidiaries or Terrain, as applicable, (c) statutory liens to secure obligations to landlords, lessors or renters under leases or rental agreements, (d) deposits or pledges made in connection with, or to secure payment of, workers’ compensation, unemployment insurance or similar programs mandated by Law and (e) statutory liens in favor of carriers, warehousemen, mechanics and materialmen, to secure claims for labor, materials or supplies.

“Person” means any individual, Entity or Governmental Authority.

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“Personal Data” means any data or information in any medium relating to an identified or identifiable individual, browser, or device and any other data or information that constitutes personal information or personally identifiable information under any applicable Law and includes, but is not limited to, a natural person’s first and last name, home or other physical address, telephone number, e-mail address, photograph, social security number, driver’s license number, passport number or other government-issued identification number, biometric information, credit card or other financial information, or customer or account number, IP address, cookie information or other unique identifiers. An identifiable individual is one who can be identified, directly or indirectly, in particular by reference to an identification number or to one or more factors specific to his/her physical, physiological, mental, economic, cultural or social identity. Personal Data shall include Protected Health Information as defined under the Health Insurance Portability and Accountability Act of 1996 as amended (“HIPAA”) at 45 CFR 164.103.

“Pre-Closing Financing” means the purchase by certain investors of shares of Company Common Stock in a private placement or placements, to be consummated immediately prior to the Closing.

“Privacy Laws” means (a) all Laws relating to the processing of Personal Data, data privacy, data or cyber security, breach notification, or data localization; (b) all regulatory and self-regulatory guidelines and published interpretations by Governmental Authorities.

“Representatives” means directors, officers, employees, agents, attorneys, accountants, investment bankers, advisors and representatives.

“Reverse Stock Split” means a reverse stock split of all outstanding shares of Terrain Common Stock at a reverse stock split ratio mutually agreed to by Terrain and the Company that is effected by Terrain for the purpose of maintaining compliance with Nasdaq listing standards.

“Sarbanes-Oxley Act” means the Sarbanes-Oxley Act of 2002.

“SEC” means the United States Securities and Exchange Commission.

“Securities Act” means the Securities Act of 1933.

“Securities Purchase Agreement” means the Securities Purchase Agreement entered into among the Company and the investors in the pre-closing financing, pursuant to which such investors have agreed to purchase the number of shares of Company Common Stock set forth therein.

“Subsequent Transaction” means any Acquisition Transaction (with all references to 15% in the definition of Acquisition Transaction being treated as references to 35% for these purposes).

An Entity shall be deemed to be a “Subsidiary” of a Person if such Person directly or indirectly owns or purports to own, beneficially or of record, (a) an amount of voting securities or other interests in such Entity that is sufficient to enable such Person to elect at least a majority of the members of such entity’s board of directors or other governing body or (b) at least 50% of the outstanding equity, voting, beneficial or financial interests in such Entity.

“Superior Offer” means an unsolicited bona fide written Acquisition Proposal (with all references to 15% in the definition of Acquisition Transaction being treated as references to 50% for these purposes) that: (a) was not obtained or made as a direct or indirect result of a breach of (or in violation of) the Agreement, (b) is on terms and conditions that the Terrain Board or the Company Board, as applicable, determines in good faith, based on such matters that it deems relevant (including the likelihood of consummation thereof and the financing terms thereof), as well as any written offer by the other Party to the Agreement to amend the terms of the Agreement, and following consultation with its outside legal counsel and financial advisors, if any, are more favorable, from a financial point of view, to Terrain’s stockholders or the Company’s stockholders, as applicable, than the terms of the Contemplated Transactions and (c) is not subject to any financing conditions (and if financing is required, such financing is then fully committed to the third party).

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“Tax” means any U.S. federal, state or local, non-U.S. or other tax, including any income tax, franchise tax, capital gains tax, gross receipts tax, value-added tax, surtax, estimated tax, unemployment tax, national health insurance tax, excise tax, ad valorem tax, transfer tax, stamp tax, sales tax, use tax, property tax, business tax, withholding tax, payroll tax, customs duty, alternative or add-on minimum or other tax of any kind whatsoever, and including any fine, penalty, addition to tax or interest imposed by a Governmental Authority with respect thereto, whether disputed or not.

“Tax Return” means any return (including any information return), report, statement, declaration, estimate, schedule, notice, notification, form, election, certificate or other document or information, and any amendment or supplement to any of the foregoing, filed or required to be filed with any Governmental Authority in connection with the determination, assessment, collection or payment of any Tax or in connection with the administration, implementation or enforcement of or compliance with any Law relating to any Tax.

“Terrain Associate” means any current or former employee, independent contractor, officer or director of Terrain or any of its Subsidiaries.

“Terrain Board” means the board of directors of Terrain.

“Terrain Capitalization Representations” means the representations and warranties of Terrain and Merger Sub set forth in Sections 4.6(a), 4.6(b) and 4.6(d).

“Terrain Common Stock” means the common stock, $0.0001 par value per share, of Terrain .

“Terrain Contract” means any Contract: (a) to which Terrain is a party, (b) by which Terrain is or may become bound or under which Terrain has, or may become subject to, any obligation or (c) under which Terrain has or may acquire any right or interest.

“Terrain Employee Plan” means any Employee Plan that Terrain or any of its Subsidiaries sponsors, contributes to, or provides benefits under or through such plan, or has any obligation to contribute to or provide benefits under or through such plan, or if such plan provides benefits to or otherwise covers any current or former employee, officer, director or other service provider of Terrain or any of its Subsidiaries (or their spouses, dependents, or beneficiaries).

“Terrain Fundamental Representations” means the representations and warranties of Terrain and Merger Sub set forth in Sections 4.1, 4.3, 4.4 and 4.21.

“Terrain In-the-Money Price” means $3.43 per share of Terrain Common Stock plus $0.00225 for each $100,000 of Terrain Legacy Proceeds, which Terrain In-the-Money Price shall be equitably adjusted by the parties in good faith by mutual agreement, if applicable in the context, to reflect the Terrain Closing Cash Dividend or the Reverse Stock Split or comparable matter.

“Terrain Intervening Event” means any material Effect or material change in circumstances with respect to Terrain that (a) was not known or reasonably foreseeable to the Terrain Board as of the date of this Agreement (or if known to the Terrain Board as of the date hereof, the consequences of which were not known or reasonably foreseeable to the Terrain Board as of the date of this Agreement) and (b) does not relate to any Acquisition Proposal; provided, that none of the following, either alone or in combination, shall constitute a “Terrain Intervening Event”: (i) inquiry with respect to a business combination or

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acquisition or any business combination or acquisition opportunity, (ii) any Effect resulting from a breach of this Agreement by Terrain, (iii) the fact, in and of itself, that Terrain exceeds any internal or published projections, estimates or expectations of Terrain’s revenue, earnings or other financial or operating metrics for any period ending on or after the date of this Agreement (provided that the exception in this clause (iii) shall not prevent or otherwise affect consideration of any such development or change that causes Terrain meeting or exceeding such metrics from being taken into account in determining whether a Terrain Intervening Event has occurred), or (iv) any changes after the date of this Agreement in the market price or trading volume of the shares of Terrain Common Stock (provided that the exception in this clause (iv) shall not prevent or otherwise affect consideration of any such development or change that causes such change in market price or trading value from being taken into account in determining whether a Terrain Intervening Event has occurred).

“Terrain IP Rights” means all Intellectual Property owned, licensed or controlled by Terrain that is necessary for the operation of the business of Terrain as presently conducted.

“Terrain IP Rights Agreement” means any instrument or agreement governing, related or pertaining to any Terrain IP Rights.

“Terrain Legacy Assets” means all assets, technology and Intellectual Property of Terrain as they existed at any time prior to the date of this Agreement that are primarily used in or primarily related to Terrain’s (a) FREEDOM-3 Phase 2 program evaluating FCR001’s ability to induce tolerance in diffuse systemic sclerosis, (b) FREEDOM-1 and FREEDOM-2 clinical trials evaluating FCR001’s ability to induce durable tolerance in living donor kidney transplant recipients, (c) FCR001 and Facilitated Allo-HSCT Therapy and (d) cell therapy chemistry, manufacturing and controls (CMC) capabilities and facilities.

“Terrain Legacy Business” means the business of Terrain as conducted at any time prior to the date of this Agreement.

“Terrain Legacy Proceeds” means the (a) value of any proceeds received by Terrain for all Terrain Legacy Transactions prior to the Effective Time, or held in a third-party escrow in respect of any Terrain Legacy Transaction as of the Effective Time, solely to the extent such escrow will be released subject only to the consummation of the Merger, plus (b) the value of (i) the cash obligations under the Houston Lease and the Louisville Lease if the economic burden of such obligations have been transferred (e.g., by assignment, sublease or otherwise) to a third party such that, post-Closing, Terrain will not be responsible for making such payments and (ii) the cash obligations to wind-down clinical trials associated with FCR001 and all avoided liabilities or Terrain expenses assumed or reimbursed by the transaction counterparty in connection with its in-licensing of FCR001 from Terrain and (c) reduced by any cash payment obligations or liabilities of Terrain incurred as a result of such Terrain Legacy Transactions (including, without limitation, Taxes accrued or payable by Terrain that are attributable to such Terrain Legacy Transactions). For purposes of this definition, the “Houston Lease” refers to that certain Beltway Houston Lease, dated July 20, 2021, by and between Terrain and SunBlossom Beltway 8 Office Center, LLC, and the “Louisville Lease” refers to that certain University of Louisville Lease Agreement, dated November 1, 2018, by and between the University of Louisville and Terrain, as amended by that certain First Amendment, dated July 1, 2019, that certain Second Amendment, dated February 1, 2020 and that certain Third Amendment, dated March 1, 2023.

“Terrain Legacy Transaction” shall have the meaning set forth in Section 5.1(c).

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“Terrain Material Adverse Effect” means any Effect that, considered together with all other Effects that have occurred prior to the date of determination of the occurrence of the Terrain Material Adverse Effect, has or would reasonably be expected to have a material adverse effect on the business, financial condition, assets, liabilities or results of operations of Terrain; provided, however, that Effects arising or resulting from the following shall not be taken into account in determining whether there has been a Terrain Material Adverse Effect: (a) the announcement of the Agreement or the pendency of the Contemplated Transactions; provided, that, for the avoidance of doubt, this clause (a) shall not apply to any representation or warranty set forth in Section 4.5, Section 4.6(c) or 4.17(o), (b) any change in the stock price or trading volume of Terrain Common Stock (it being understood, however, that any Effect causing or contributing to any change in stock price or trading volume of Terrain Common Stock may be taken into account in determining whether a Terrain Material Adverse Effect has occurred, unless such Effects are otherwise excepted from this definition), (c) the taking of any action, or the failure to take any action, by Terrain that is required to comply with the terms of the Agreement, (d) the sale or winding down of the Terrain Legacy Business and Terrain’s operations, and the sale, license or other disposition of the Terrain Legacy Assets, (e) any natural disaster or any act or threat of terrorism or war anywhere in the world, any armed hostilities or terrorist activities anywhere in the world, any threat or escalation or armed hostilities or terrorist activities anywhere in the world or any governmental or other response or reaction to any of the foregoing, (f) any epidemic or pandemic in the United States or any other country or region in the world, or any escalation of the foregoing, (g) any change in GAAP or applicable Law or the interpretation thereof or (h) general economic or political conditions or conditions generally affecting the industries in which Terrain operates; except, in each case with respect to clauses (e), (f), (g) and (h), to the extent disproportionately affecting Terrain relative to other similarly situated companies in the industries in which Terrain operates.

“Terrain Options” means options to purchase shares of Terrain Common Stock issued by Terrain under any Terrain Stock Plan.

“Terrain Registered IP” means all Terrain IP Rights that are owned or exclusively licensed by Terrain that are registered, filed or issued under the authority of, with or by any Governmental Authority, including all patents, registered copyrights and registered trademarks and all applications for any of the foregoing.

“Terrain RSUs” means Terrain’s restricted stock units, with each such unit representing a contingent right to receive one share of Terrain Common Stock upon vesting and that was issued pursuant to any Terrain Stock Plan.

“Terrain SARs” means Terrain’s stock appreciation rights, representing the right to receive cash or shares of Terrain Common Stock equal to the appreciation value of the Terrain Common Stock on the date of exercise over the exercise price.

“Terrain Stockholder Support Agreements” shall have the meaning set forth in the recitals.

“Terrain Triggering Event” shall be deemed to have occurred: (a) upon any Terrain Board Adverse Recommendation Change or if the Terrain Board approved, endorsed or recommended any Acquisition Proposal, (b) if Terrain shall have entered into any Contract relating to any Acquisition Proposal (other than an Acceptable Confidentiality Agreement permitted pursuant to Section 5.4) or (c) upon willful and material breach of Terrain’s obligations set forth in Section 5.4.

“Terrain Unaudited Interim Balance Sheet” means the unaudited balance sheet of Terrain as of March 31, 2023, included in Terrain’s Report on Form 10-Q for the fiscal quarter ended March 31, 2023, as filed with the SEC.

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“Transaction Costs” means with respect to Terrain, the sum of (a) the cash cost of any change of control payments, transaction bonus payments or severance payments that are or become due to any employee, director or officer of Terrain and its Subsidiaries that are unpaid as of the Closing, (b) the cash cost of any retention payments that are or become due to any employee of Terrain and its Subsidiaries at or prior to the Effective Time or as a result of the Merger or the Contemplated Transactions, (c) the cash cost of any payments (whether absolute, contingent or otherwise) that are or may be due to any former employee of Terrain pursuant to a consulting agreement with Terrain that are unpaid as of Closing, (d) any costs, fees and expenses incurred by Terrain and its Subsidiaries, and for which Terrain and its Subsidiaries is liable, in connection with the negotiation, preparation and execution of this Agreement and the consummation of the Contemplated Transactions and that are unpaid as of the Closing, including the maximum amount of brokerage fees and commissions, finders’ fees and financial advisory fees, and any fees and expenses of counsel or accountants payable by Terrain and its Subsidiaries, and fees paid to the SEC in connection with filing the Registration Statement, the Proxy Statement, and any amendments and supplements thereto, with the SEC and any costs, fees and expenses in connection with the printing, mailing and distribution of the Registration Statement and any amendments and supplements thereto, and (e) the employer portion of any payroll, employment or similar Taxes incurred in connection with the payments described in the foregoing clauses (a) through (d), including, without limitation, the Terrain Transaction Payroll Taxes.

“Transaction Litigation” means any Legal Proceeding (including any class action or derivative litigation) asserted, threatened in writing or commenced by, on behalf of or in the name of, against or otherwise involving Terrain, the Terrain Board, any committee thereof or any of Terrain’s directors or officers, in each case to the extent relating directly or indirectly to this Agreement, the Merger or any of the Contemplated Transactions or disclosures of a party relating to the Contemplated Transactions (including any such Legal Proceeding based on allegations that Terrain’s entry into this Agreement or the terms and conditions of this Agreement or any of the Contemplated Transactions constituted a breach of the fiduciary duties of any member of the Terrain Board or any officer of Terrain).

“Terrain Transaction Payroll Taxes” means the employer portion of any payroll, employment or similar Taxes incurred in connection with the transactions described in Section 6.6 of this Agreement.

“Treasury Regulations” means the United States Treasury regulations promulgated under the Code.

“WARN Act” means the Worker Adjustment and Retraining Notification Act of 1998, and similar state, local and foreign laws related to plant closings, relocations, mass layoffs and employment losses.

b) Each of the following terms is defined in the Section set forth opposite such term:

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1.2 Other Definitional and Interpretative Provisions. The words “hereof,” “herein” and “hereunder” and words of like import used in this Agreement shall refer to this Agreement as a whole and not to any particular provision of this Agreement. The captions herein are included for convenience of reference only and shall be ignored in the construction or interpretation hereof. References to Sections, Exhibits and Schedules are to Sections, Exhibits and Schedules of this Agreement unless otherwise specified. Any capitalized terms used in any Exhibit or Schedule but not otherwise defined therein shall have the meaning as defined in this Agreement. Any singular term in this Agreement shall be deemed to include the plural, and any plural term the singular, the masculine gender shall include the feminine and neuter genders; the feminine gender shall include the masculine and neuter genders; and the neuter gender shall include the masculine and feminine genders. Whenever the words “include,” “includes” or “including” are used in this Agreement, they shall be deemed to be followed by the words “without limitation,” whether or not they are in fact followed by those words or words of like import. The word “or” is not exclusive. “Writing,” “written” and comparable terms refer to printing, typing and other means of reproducing words (including electronic media) in a visible form. References to any agreement or Contract are to that agreement or Contract as amended, modified or supplemented from time to time in accordance with the terms hereof and thereof. References to any Person include the successors and permitted assigns of that Person. References to any statute are to that statute and to the rules and regulations promulgated thereunder, in each case as amended, modified, re-enacted thereof, substituted, from time to time. References to “$” and “dollars” are to the currency of the United States. All accounting terms used herein will be interpreted, and all accounting determinations hereunder will be made, in accordance with GAAP unless otherwise expressly specified. References from or through any date shall mean, unless otherwise specified, from and including or through and including, respectively. All references to “days” shall be to

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calendar days unless otherwise indicated as a “Business Day.” Except as otherwise specifically indicated, for purposes of measuring the beginning and ending of time periods in this Agreement (including for purposes of “Business Day” and for hours in a day or Business Day), the time at which a thing, occurrence or event shall begin or end shall be deemed to occur in the Eastern time zone of the United States. The Parties agree that any rule of construction to the effect that ambiguities are to be resolved against the drafting Party shall not be applied in the construction or interpretation of this Agreement. The Parties agree that the Company Disclosure Schedule or Terrain Disclosure Schedule shall be arranged in sections and subsections corresponding to the numbered and lettered sections and subsections contained in Section 3 or Section 4, respectively. The disclosures in any section or subsection of the Company Disclosure Schedule or the Terrain Disclosure Schedule shall qualify other sections and subsections in Section 3 or Section 4, respectively, to the extent it is readily apparent from a reading of the disclosure that such disclosure is applicable to such other sections and subsections. The words “delivered” or “made available” mean, with respect to any documentation, (a) that prior to 5:00 p.m. on the date that is the calendar day prior to the date of this Agreement, a copy of such material has been posted to and made available by a Party to the other Party and its Representatives in the electronic data room maintained by such disclosing Party for the purposes of the Contemplated Transactions or (b) delivered by or on behalf of a Party of its Representatives to the other Party or its Representatives via electronic mail or in hard copy form prior to the execution of this Agreement.

Section 2. Description of Transaction

2.1 The Merger. Upon the terms and subject to the conditions set forth in this Agreement, at the Effective Time, Merger Sub shall be merged with and into the Company, and the separate existence of Merger Sub shall cease. The Company will continue as the surviving corporation in the Merger (the “Surviving Corporation”).

2.2 Effects of the Merger. The Merger shall have the effects set forth in this Agreement and in the applicable provisions of the DGCL. As a result of the Merger, the Company will become a direct wholly owned subsidiary of Terrain.

2.3 Closing; Effective Time. Unless this Agreement is earlier terminated pursuant to the provisions of Section 10.1, and subject to the satisfaction or waiver of the conditions set forth in Sections 7, 8 and 9, the consummation of the Merger (the “Closing”) shall take place remotely, as promptly as practicable (but in no event later than the second Business Day following the satisfaction or waiver of the last to be satisfied or waived of the conditions set forth in Sections 7, 8 and 9, other than those conditions that by their nature are to be satisfied at the Closing, but subject to the satisfaction or waiver of each of such conditions), or at such other time, date and place as Terrain and the Company may mutually agree in writing. The date on which the Closing actually takes place is referred to as the “Closing Date.” At the Closing, the Parties shall cause the Merger to be consummated by executing and filing with the Secretary of State of the State of Delaware a certificate of merger with respect to the Merger, satisfying the applicable requirements of the DGCL and in form and substance as agreed to by the Parties (the “Certificate of Merger”). The Merger shall become effective at the time of the filing of such Certificate of Merger with the Secretary of State of the State of Delaware or at such later time as may be specified in such Certificate of Merger with the consent of Terrain and the Company (the time as of which the Merger becomes effective being referred to as the “Effective Time”).

2.4 Certificate of Incorporation and Bylaws; Directors and Officers. At the Effective Time:

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(a) the certificate of incorporation of the Surviving Corporation shall be amended and restated in the Merger to read as set forth on Exhibit A to the Certificate of Merger, until thereafter amended as provided by the DGCL and such certificate of incorporation;

(b) the certificate of incorporation of Terrain shall be identical to the certificate of incorporation of Terrain immediately prior to the Effective Time, until thereafter amended as provided by the DGCL and such certificate of incorporation; provided, however, that at the Effective Time, Terrain shall file an amendment to its certificate of incorporation to (i) change the name of Terrain to Tourmaline Bio, Inc., (ii) effect the Reverse Stock Split and (iii) make such other changes as contemplated herein or as are mutually agreeable to Terrain and the Company;

(c) the bylaws of the Surviving Corporation shall be identical to the bylaws of Merger Sub as in effect immediately prior to the Effective Time, until thereafter amended as provided by the DGCL and such bylaws;

(d) the directors and officers of Terrain, each to hold office in accordance with the certificate of incorporation and bylaws of Terrain, shall be as set forth in Section 6.13; and

(e) the directors and officers of the Surviving Corporation, each to hold office in accordance with the certificate of incorporation and bylaws of the Surviving Corporation, shall be the directors and officers of Terrain as set forth in Section 6.13, after giving effect to the provisions of Section 6.13.

2.5 Conversion of Shares.

(a) At the Effective Time, by virtue of the Merger and without any further action on the part of Terrain, Merger Sub, the Company or any stockholder of the Company or Terrain:

(i) any shares of Company Capital Stock held as treasury stock immediately prior to the Effective Time shall be canceled and retired and shall cease to exist, and no consideration shall be delivered in exchange therefor; and

(ii) subject to Section 2.5(c), each share of Company Capital Stock outstanding immediately prior to the Effective Time (excluding shares to be canceled pursuant to Section 2.5(a)(i) and excluding Dissenting Shares, but including any shares of Company Capital Stock issued pursuant to the Pre-Closing Financing) shall be converted solely into the right to receive a number of shares of Terrain Common Stock equal to the Exchange Ratio (the “Merger Consideration”).

(b) If any shares of Company Capital Stock outstanding immediately prior to the Effective Time are unvested or are subject to a repurchase option or a risk of forfeiture under any applicable restricted stock purchase agreement or other similar agreement with the Company, then the shares of Terrain Common Stock issued in exchange for such shares of Company Capital Stock will to the same extent be unvested and subject to the same repurchase option or risk of forfeiture, and such shares of Terrain Common Stock shall accordingly be marked with appropriate legends. The Company shall take all actions that may be necessary to ensure that, from and after the Effective Time, Terrain is entitled to exercise any such repurchase option or other right set forth in any such restricted stock purchase agreement or other agreement.

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(c) No fractional shares of Terrain Common Stock shall be issued in connection with the Merger, and no certificates or scrip for any such fractional shares shall be issued, with no cash being paid for any fractional share eliminated by such rounding.

(d) All Company Options outstanding immediately prior to the Effective Time under the Company Plan shall be treated in accordance with Section 6.5.

(e) Each share of common stock, $0.01 par value per share, of Merger Sub issued and outstanding immediately prior to the Effective Time shall be converted into and exchanged for one validly issued, fully paid and nonassessable share of common stock, $0.01 par value per share, of the Surviving Corporation. Each stock certificate of Merger Sub evidencing ownership of any such shares shall, as of the Effective Time, evidence ownership of such shares of common stock of the Surviving Corporation.

(f) If, between the date of this Agreement and the Effective Time, the outstanding shares of Company Capital Stock or Terrain Common Stock shall have been changed into, or exchanged for, a different number of shares or a different class, by reason of any stock dividend, subdivision, reclassification, recapitalization, split (including the Reverse Stock Split to the extent such split has not previously been taken into account in calculating the Exchange Ratio), combination or exchange of shares or other like change, the Exchange Ratio shall, to the extent necessary, be equitably adjusted to reflect such change to the extent necessary to provide the holders of Company Capital Stock, Company Options and Terrain Common Stock with the same economic effect as contemplated by this Agreement prior to such stock dividend, subdivision, reclassification, recapitalization, split, combination or exchange of shares or other like change; provided, however, that nothing herein will be construed to permit the Company or Terrain to take any action with respect to Company Capital Stock or Terrain Common Stock, respectively, that is prohibited or not expressly permitted by the terms of this Agreement.

2.6 Closing of the Company’s Transfer Books. At the Effective Time: (a) all shares of Company Capital Stock outstanding immediately prior to the Effective Time shall be treated in accordance with Section 2.5(a), and all holders of certificates representing shares of Company Capital Stock that were outstanding immediately prior to the Effective Time shall cease to have any rights as stockholders of the Company and (b) the stock transfer books of the Company shall be closed with respect to all shares of Company Capital Stock outstanding immediately prior to the Effective Time. No further transfer of any such shares of Company Capital Stock shall be made on such stock transfer books after the Effective Time. If, after the Effective Time, a valid certificate previously representing any shares of Company Capital Stock outstanding immediately prior to the Effective Time (a “Company Stock Certificate”) is presented to the Exchange Agent or to the Surviving Corporation, such Company Stock Certificate shall be canceled and shall be exchanged as provided in Sections 2.5 and 2.8.

2.7 Surrender of Certificates.

(a) On or prior to the Closing Date, Terrain shall select a reputable bank, transfer agent or trust company, reasonably acceptable to the Company, to act as exchange agent in the Merger (the “Exchange Agent”); provided that Terrain’s transfer agent shall be deemed acceptable to act as Exchange Agent. At the Effective Time, Terrain shall deposit with the Exchange Agent evidence of book-entry shares representing the shares of Terrain Common Stock issuable pursuant to Section 2.5(a) in exchange for shares of Company Capital Stock.

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(b) Promptly after the Effective Time, the Parties shall cause the Exchange Agent to mail to the Persons who were record holders of shares of Company Capital Stock that were converted into the right to receive the Merger Consideration: (i) a letter of transmittal, if requested by the Exchange Agent, in customary form and containing such provisions as Terrain may reasonably specify (including a provision confirming that delivery of Company Stock Certificates shall be effected, and risk of loss and title to Company Stock Certificates shall pass, only upon delivery of such Company Stock Certificates to the Exchange Agent) and (ii) instructions for effecting the surrender of Company Stock Certificates in exchange for book-entry shares of Terrain Common Stock. Upon surrender (including electronic surrender) of a Company Stock Certificate to the Exchange Agent for exchange, together with a duly executed letter of transmittal and such other documents as may be reasonably required by the Exchange Agent or Terrain: (A) the holder of such Company Stock Certificate shall be entitled to receive in exchange therefor book-entry shares representing the Merger Consideration (in a number of whole shares of Terrain Common Stock) that such holder has the right to receive pursuant to the provisions of Section 2.5(a) and (B) the Company Stock Certificate so surrendered shall be canceled. Until surrendered as contemplated by this Section 2.7(b), each Company Stock Certificate shall be deemed, from and after the Effective Time, to represent only the right to receive book-entry shares of Terrain Common Stock representing the Merger Consideration. If any Company Stock Certificate shall have been lost, stolen or destroyed, Terrain may, in its discretion and as a condition precedent to the delivery of any shares of Terrain Common Stock, require the owner of such lost, stolen or destroyed Company Stock Certificate to provide an applicable affidavit with respect to such Company Stock Certificate and post a bond indemnifying Terrain against any claim suffered by Terrain related to the lost, stolen or destroyed Company Stock Certificate or any Terrain Common Stock issued in exchange therefor as Terrain may reasonably request.

(c) No dividends or other distributions declared or made with respect to Terrain Common Stock with a record date after the Effective Time shall be paid to the holder of any unsurrendered Company Stock Certificate with respect to the shares of Terrain Common Stock that such holder has the right to receive in the Merger until such holder surrenders such Company Stock Certificate or provides an affidavit of loss or destruction in lieu thereof in accordance with this Section 2.7 (at which time such holder shall be entitled, subject to the effect of applicable abandoned property, escheat or similar Laws, to receive all such dividends and distributions, without interest).

(d) Any shares of Terrain Common Stock deposited with the Exchange Agent that remain undistributed to holders of Company Stock Certificates as of the date that is 180 days after the Closing Date shall be delivered to Terrain upon demand, and any holders of Company Stock Certificates who have not theretofore surrendered their Company Stock Certificates in accordance with this Section 2.7 shall thereafter look only to Terrain for satisfaction of their claims for Terrain Common Stock and any dividends or distributions with respect to shares of Terrain Common Stock.

(e) Each of the Exchange Agent, Terrain and the Surviving Corporation (and, in each case, any Affiliate thereof) shall be entitled to deduct and withhold from any consideration deliverable pursuant to this Agreement such amounts as are required to be deducted or withheld from such consideration under the Code or under any other applicable Law. The applicable payor shall provide commercially reasonable notice to any holder of Company Capital Stock upon becoming aware of any such withholding obligation attributable to any consideration payable in respect of Company Capital Stock, including a reasonably detailed explanation for such withholding obligation, and the Parties shall cooperate with each other to the extent reasonable to obtain reduction of or relief from such withholding. To the extent such amounts are so deducted or withheld, and remitted to the appropriate Tax authority, such amounts shall be treated for all purposes under this Agreement as having been paid to the Person to whom such amounts would otherwise have been paid.

(f) No Party shall be liable to any holder of any Company Stock Certificate or to any other Person with respect to any shares of Terrain Common Stock (or dividends or distributions with respect thereto) or for any cash amounts delivered to any public official pursuant to any applicable abandoned property Law, escheat Law or similar Law.

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2.8 Calculation of Net Cash Aggregate Cash and Tax Amount.

(a) No later than the Determination Date, Terrain will deliver to the Company a schedule (the “Closing Schedule”) setting forth, in reasonable detail, Terrain’s good faith, estimated calculation of Net Cash and the Aggregate Cash and Tax Amount (the “Closing Calculations” and the date of delivery of such schedule being the “Delivery Date”), in the case of Net Cash, as of the close of business on the last Business Day prior to the Anticipated Closing Date, and in the case of the Aggregate Cash and Tax Amount, as of immediately prior to the Effective Time (but for purposes of determining the Terrain Transaction Payroll Taxes, after giving effect to the transactions contemplated by Section 6.6) (each applicable time, the “Determination Time”) prepared and certified by Terrain’s Chief Financial Officer. Terrain shall make available to the Company, as reasonably requested by the Company, the work papers and back-up materials used or useful in preparing the Closing Schedule and, if reasonably requested by the Company, Terrain’s accountants and counsel at reasonable times and upon reasonable notice. The Closing Calculations shall include Terrain’s determination, as of the Determination Time, of the defined terms in Section 1.1(a) necessary to calculate the Exchange Ratio and the Terrain Closing Cash Dividend. Set forth on Section 2.8(a) of the Terrain Disclosure Schedule is an illustrative example of Net Cash and the Aggregate Cash and Tax Amount calculations calculated on a hypothetical basis as of the date described therein.

(b) No later than three (3) Business Days after the Delivery Date (the last day of such period, the “Response Date”), the Company shall have the right to dispute any part of the Closing Calculations by delivering a written notice to that effect to Terrain (a “Dispute Notice”). Any Dispute Notice shall identify in reasonable detail and to the extent known the nature and amounts of any proposed revisions to the Closing Calculations and will be accompanied by reasonably detailed materials supporting the basis for such revisions.

(c) If, on or prior to the Response Date, the Company notifies Terrain in writing that it has no objections to the Closing Calculations or, if on the Response Date, the Company fails to deliver a Dispute Notice as provided in Section 2.8(b), then the Closing Calculations as set forth in the Closing Schedule shall be deemed to have been finally determined for purposes of this Agreement and to represent the Net Cash and the Aggregate Cash and Tax Amount at the Determination Time for purposes of this Agreement.

(d) If the Company delivers a Dispute Notice on or prior to the Response Date, then Representatives of Terrain and the Company shall promptly meet and attempt in good faith to resolve the disputed item(s) and negotiate an agreed-upon determination of Net Cash and the Aggregate Cash and Tax Amount, which agreed upon Net Cash and the Aggregate Cash and Tax Amount shall be deemed to have been finally determined for purposes of this Agreement and to represent the Net Cash and the Aggregate Cash and Tax Amount at the Determination Time for purposes of this Agreement.

(e) If Representatives of Terrain and the Company are unable to negotiate an agreed-upon determination of Net Cash or the Aggregate Cash and Tax Amount as of the Determination Time pursuant to Section 2.8(d) within three Business Days after delivery of the Dispute Notice (or such other period as Terrain and the Company may mutually agree upon), then any remaining disagreements as to the calculation of Net Cash or the Aggregate Cash and Tax Amount shall be referred to an independent auditor of recognized national standing jointly selected by Terrain and the Company. If the parties are unable to select an independent auditor within five Business Days, then either Terrain or the Company may thereafter request that the Boston, Massachusetts Office of the American Arbitration Association (“AAA”)

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make such selection (either the independent auditor jointly selected by both parties or such independent auditor selected by the AAA, the “Accounting Firm”). Terrain and the Company shall promptly deliver to the Accounting Firm the work papers and back-up materials used in preparing the Closing Schedule and the Dispute Notice, and Terrain and the Company shall use commercially reasonable efforts to cause the Accounting Firm to make its determination within five (5) Business Days of accepting its selection. Terrain and the Company shall be afforded the opportunity to present to the Accounting Firm any material related to the unresolved disputes and to discuss the issues with the Accounting Firm; provided, however, that no such presentation or discussion shall occur without the presence of a Representative of each of Terrain and the Company. The determination of the Accounting Firm shall be limited to the disagreements submitted to the Accounting Firm. The determination of the amount of Net Cash and the Aggregate Cash and Tax Amount made by the Accounting Firm shall be made in writing delivered to each of Terrain and the Company, shall be final and binding on Terrain and the Company and shall (absent manifest error) be deemed to have been finally determined for purposes of this Agreement and to represent the Net Cash and the Aggregate Cash and Tax Amount at the Determination Time for purposes of this Agreement. The Parties shall delay the Closing until the resolution of the matters described in this Section 2.8(e). The fees and expenses of the Accounting Firm shall be allocated between Terrain and the Company in the same proportion that the disputed amount of the Net Cash Terrain Valuation and the Aggregate Cash Amount that was unsuccessfully disputed by such Party (as finally determined by the Accounting Firm) bears to the total disputed amount of the Net Cash amount. If this Section 2.8(e) applies as to the determination of the Net Cash and the Aggregate Cash and Tax Amount at the Determination Time described in Section 2.8(a), upon resolution of the matter in accordance with this Section 2.8(e), the Parties shall not be required to determine Net Cash and the Aggregate Cash and Tax Amount again even though the Closing Date may occur later than the Anticipated Closing Date, except that either Terrain and the Company may request a redetermination of Net Cash, Terrain Valuation and the Aggregate Cash and Tax Amount if the Closing Date is more than thirty (30) days after the Anticipated Closing Date.

2.9 Appraisal Rights.

(a) Notwithstanding any provision of this Agreement to the contrary, shares of Company Capital Stock that are outstanding immediately prior to the Effective Time and which are held by stockholders who have exercised and perfected appraisal rights for such shares of Company Capital Stock in accordance with the DGCL (collectively, the “Dissenting Shares”) shall not be converted into or represent the right to receive the Merger Consideration described in Section 2.5 attributable to such Dissenting Shares. Such stockholders shall be entitled to receive payment of the appraised value of such shares of Company Capital Stock held by them in accordance with the DGCL, unless and until such stockholders fail to perfect or effectively withdraw or otherwise lose their appraisal rights under the DGCL. All Dissenting Shares held by stockholders who shall have failed to perfect or who effectively shall have withdrawn or lost their right to appraisal of such shares of Company Capital Stock under the DGCL shall thereupon be deemed to be converted into and to have become exchangeable for, as of the Effective Time, the right to receive the Merger Consideration attributable to such Dissenting Shares upon their surrender in the manner provided in Section 2.5.

(b) The Company shall give Terrain prompt written notice of any demands by dissenting stockholders received by the Company, withdrawals of such demands and any other instruments served on the Company and any material correspondence received by the Company in connection with such demands. The Company shall not, without Terrain’s prior written consent (not to be unreasonably withheld, conditioned or delayed), make any payment with respect to, or settle or offer to settle, any such demands, or agree to do any of the foregoing.

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2.10 Further Action. If, at any time after the Effective Time, any further action is determined by the Surviving Corporation to be necessary or desirable to carry out the purposes of this Agreement or to vest the Surviving Corporation with full right, title and possession of and to all rights and property of the Company, then the officers and directors of the Surviving Corporation shall be fully authorized, and shall use their and its commercially reasonable efforts (in the name of the Company, in the name of Merger Sub, in the name of the Surviving Corporation and otherwise) to take such action.

2.11 Tax Consequences. For United States federal (and applicable state and local) income tax purposes, the Merger is intended to constitute a reorganization within the meaning of Section 368(a) of the Code. The Parties (i) adopt this Agreement as a “plan of reorganization” within the meaning of Treasury Regulations Sections 1.368-2(g) and 1.368-3, (ii) agree to file and retain such information with respect to the Merger as shall be required under Treasury Regulations Section 1.368-3, and (iii) agree to file all Tax Returns with respect to the Merger on a basis consistent with, and take no position (whether in audits, Tax Returns or otherwise) inconsistent with, such intended treatment unless otherwise required by a “determination” within the meaning of Section 1313(a) of the Code.

Section 3. Representations and Warranties of the Company.

Except as set forth in the written disclosure schedule delivered by the Company to Terrain (the “Company Disclosure Schedule”), the Company represents and warrants to Terrain and Merger Sub as follows:

3.1 Due Organization; Subsidiaries.

(a) Each of the Company and its Subsidiaries is a corporation or other legal entity duly incorporated or otherwise organized, validly existing and in good standing under the Laws of the jurisdiction of its incorporation or organization and has all necessary power and authority: (i) to conduct its business in the manner in which its business is currently being conducted, (ii) to own or lease and use its property and assets in the manner in which its property and assets are currently owned or leased and used and (iii) to perform its obligations under all Contracts by which it is bound.

(b) Each of the Company and its Subsidiaries is duly licensed and qualified to do business, and is in good standing (to the extent applicable in such jurisdiction), under the Laws of all jurisdictions where the nature of its business requires such licensing or qualification other than in jurisdictions where the failure to be so qualified individually or in the aggregate would not be reasonably expected to have a Company Material Adverse Effect.

(c) The Company has no Subsidiaries, except for the Entities identified in Section 3.1(c) of the Company Disclosure Schedule; and neither the Company nor any of the Entities identified in Section 3.1(c) of the Company Disclosure Schedule owns any capital stock of, or any equity, ownership or profit-sharing interest of any nature in, or controls directly or indirectly, any other Entity other than the Entities identified in Section 3.1(c) of the Company Disclosure Schedule. Neither the Company nor any of its Subsidiaries is and or has otherwise been, directly or indirectly, a party to, member of or participant in any partnership, joint venture or similar business entity. Neither the Company nor any of its Subsidiaries has agreed or is obligated to make, or is bound by any Contract under which it may become obligated to make, any future investment in or capital contribution to any other Entity. Neither the Company nor any of its Subsidiaries has, at any time, been a general partner of, or has otherwise been liable for any of the debts or other obligations of, any general partnership, limited partnership or other Entity.

3.2 Organizational Documents. The Company has delivered to Terrain accurate and complete copies of the Organizational Documents of the Company and each of its Subsidiaries. Neither the Company nor any of its Subsidiaries is in breach or violation of its Organizational Documents in any material respect.

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3.3 Authority; Binding Nature of Agreement. The Company and each of its Subsidiaries have all necessary corporate power and authority to enter into and to perform its obligations under this Agreement and to consummate the Contemplated Transactions. The Company Board has (i) determined that the Contemplated Transactions are fair to, advisable and in the best interests of the Company and its stockholders, (ii) approved and declared advisable this Agreement and the Contemplated Transactions and (iii) determined to recommend, upon the terms and subject to the conditions set forth in this Agreement, that the stockholders of the Company vote to adopt this Agreement and thereby approve the Contemplated Transactions. This Agreement has been duly executed and delivered by the Company and assuming the due authorization, execution and delivery by Terrain and Merger Sub, constitutes the legal, valid and binding obligation of the Company, enforceable against the Company in accordance with its terms, subject to the Enforceability Exceptions. Prior to the execution of the Company Stockholder Support Agreements, the Company Board approved the Company Stockholder Support Agreements and the transactions contemplated thereby.

3.4 Vote Required. The affirmative vote of (a) a majority of the then outstanding shares of Company Preferred Stock voting as a separate class and on an as-converted to Company Common Stock basis and (b) a majority of the then outstanding shares of the capital stock of the Company on an as-converted to Company Common Stock basis (collectively, the “Required Company Stockholder Vote”), is the only vote of the holders of any class or series of Company Capital Stock necessary to adopt and approve this Agreement and approve the Contemplated Transactions.

3.5 Non-Contravention; Consents.

(a) Subject to obtaining the Required Company Stockholder Vote and the filing of the Certificate of Merger required by the DGCL, neither (x) the execution, delivery or performance of this Agreement by the Company, nor (y) the consummation of the Contemplated Transactions, will directly or indirectly (with or without notice or lapse of time):

(i) contravene, conflict with or result in a violation of any of the provisions of the Company’s Organizational Documents;

(ii) contravene, conflict with or result in a material violation of, or give any Governmental Authority or other Person the right to challenge the Contemplated Transactions or to exercise any remedy or obtain any relief under, any Law or any Order by which the Company or its Subsidiaries, or any of the assets owned or used by the Company or its Subsidiaries, is subject;

(iii) contravene, conflict with or result in a material violation of any of the terms or requirements of, or give any Governmental Authority the right to revoke, withdraw, suspend, cancel, terminate or modify, any Governmental Authorization that is held by the Company or its Subsidiaries;

(iv) contravene, conflict with or result in a violation or breach of, or result in a default under, any provision of any Company Material Contract, or give any Person the right to: (A) declare a default or exercise any remedy under any Company Material Contract, (B) any material payment, rebate, chargeback, penalty or change in delivery schedule under any Company Material Contract, (C) accelerate the maturity or performance of any Company Material Contract or (D) cancel, terminate or modify any term of any Company Material Contract, except in the case of any non-material breach, default, penalty or modification; or

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(v) result in the imposition or creation of any Encumbrance upon or with respect to any asset owned or used by the Company or its Subsidiaries (except for Permitted Encumbrances).

(b) Except for (i) the Required Company Stockholder Vote, (ii) the filing of the Certificate of Merger with the Secretary of State of the State of Delaware pursuant to the DGCL, and (iii) such consents, waivers, approvals, orders, authorizations, registrations, declarations and filings as may be required under applicable federal and state securities laws, neither the Company nor any of its Subsidiaries was, is, or will be required to make any filing with or give any notice to, or to obtain any Consent from, any Person in connection with (x) the execution, delivery or performance of this Agreement or (y) the consummation of the Contemplated Transactions.

(c) The Company Board has taken and will take all actions necessary to ensure that the restrictions applicable to business combinations contained in Section 203 of the DGCL are, and will be, inapplicable to the execution, delivery and performance of this Agreement and the Company Stockholder Support Agreements and to the consummation of the Contemplated Transactions. No other state takeover statute or similar Law applies or purports to apply to the Merger, this Agreement, the Company Stockholder Support Agreements or any of the Contemplated Transactions.

3.6 Capitalization.

(a) The authorized Company Capital Stock as of the date of this Agreement consists of (i) 231,000,000 shares of Company Common Stock, par value $0.0001 per share, of which 19,589,325 shares have been issued and are outstanding as of the date of this Agreement and (ii) 128,148,529 shares of Series A preferred stock, par value $0.0001 per share (the “Company Preferred Stock”), of which 128,148,529 shares have been issued and are outstanding as of the date of this Agreement. The Company does not hold any shares of its capital stock in its treasury.

(b) All of the outstanding shares of Company Common Stock and Company Preferred Stock and all outstanding securities of the Subsidiaries as set out in Section 3.6(b) of the Company Disclosure Schedule have been duly authorized and validly issued, and are fully paid and nonassessable and are free of any Encumbrances. None of the outstanding shares of Company Common Stock or Company Preferred Stock is entitled or subject to any preemptive right, right of participation, right of maintenance or any similar right and none of the outstanding shares of Company Common Stock or Company Preferred Stock is subject to any right of first refusal in favor of the Company. Except as contemplated herein, there is no Company Contract relating to the voting or registration of, or restricting any Person from purchasing, selling, pledging or otherwise disposing of (or granting any option or similar right with respect to), any shares of Company Common Stock or Company Preferred Stock. The Company is not under any obligation, nor is it bound by any Contract pursuant to which it may become obligated, to repurchase, redeem or otherwise acquire any outstanding shares of Company Common Stock or other securities. Section 3.6(b) of the Company Disclosure Schedule accurately and completely lists all repurchase rights held by the Company with respect to shares of Company Common Stock (including shares issued pursuant to the exercise of stock options) and specifies which of those repurchase rights are currently exercisable. Each share of Company Preferred Stock is convertible into one share of Company Common Stock. With respect to any equity securities in the Company subject to a “substantial risk of forfeiture” (within the meaning of Code Section 83 and the Treasury Regulations promulgated thereunder), the applicable holder thereof made a valid Code Section 83(b) election.

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(c) Except for the Company’s 2022 Equity Incentive Plan, as amended (the “Company Plan”), the Company does not have any stock option plan or any other plan, program, agreement or arrangement providing for any equity-based compensation for any Person. As of the date of this Agreement, the Company has reserved 29,004,152 shares of Company Common Stock for issuance under the Company Plan, of which 7,764,325 shares have been issued and are currently outstanding, 15,650,400 have been reserved for issuance upon exercise of Company Options granted under the Company Plan, and 4,639,427 shares of Company Common Stock remain available for future issuance pursuant to the Company Plan. Section 3.6(c) of the Company Disclosure Schedule sets forth the following information with respect to each Company Option outstanding as of the date of this Agreement: (i) the name of the optionee, (ii) the number of shares of Company Common Stock subject to such Company Option at the time of grant, (iii) the number of shares of Company Common Stock subject to such Company Option as of the date of this Agreement, (iv) the exercise price of such Company Option, (v) the date on which such Company Option was granted, (vi) the applicable vesting schedule, including any acceleration provisions and the number of vested and unvested shares as of the date of this Agreement, (vii) the date on which such Company Option expires and (viii) whether such Company Option is intended to be an “incentive stock option” (as defined in the Code) or a non-qualified stock option. The Company has made available to Terrain an accurate and complete copy of the Company Plan and forms of all stock option agreements approved for use thereunder. No vesting of Company Options will accelerate in connection with the closing of the Contemplated Transactions. The terms of the Company Plan permit the treatment of Company Options as provided therein without the consent or approval of any holder of Company Options or any other Person other than the Company Board.

(d) Except for the outstanding Company Options, in connection with the Pre-Closing Financing or as set forth on Section 3.6(d) of the Company Disclosure Schedule, there is no: (i) outstanding subscription, option, call, warrant or right (whether or not currently exercisable) to acquire any shares of the capital stock or other securities of the Company or any of its Subsidiaries, (ii) outstanding security, instrument or obligation that is or may become convertible into or exchangeable for any shares of the capital stock or other securities of the Company or any of its Subsidiaries, (iii) stockholder rights plan (or similar plan commonly referred to as a “poison pill”) or Contract under which the Company or any of its Subsidiaries is or may become obligated to sell or otherwise issue any shares of its capital stock or any other securities or (iv) condition or circumstance that may give rise to or provide a basis for the assertion of a claim by any Person to the effect that such Person is entitled to acquire or receive any shares of capital stock or other securities of the Company or any of its Subsidiaries. There are no outstanding or authorized stock appreciation, phantom stock, profit participation or other similar rights with respect to the Company or any of its Subsidiaries.

(e) All outstanding shares of Company Common Stock, Company Preferred Stock, Company Options and other securities of the Company have been issued and granted in material compliance with (i) all applicable securities laws and other applicable Law and (ii) all requirements set forth in applicable Contracts.

(f) With respect to Company Options granted pursuant to the Company Plan, (i) each grant of a Company Option was duly authorized no later than the date on which the grant of such Company Option was by its terms to be effective (the “Grant Date”) by all necessary corporate action, including, as applicable, approval by the Company Board (or a duly constituted and authorized committee thereof) and any required stockholder approval by the necessary number of votes or written consents, and the award agreement governing such grant (if any) was duly executed and delivered by each party thereto, (ii) each Company Option grant was made in all material respects in accordance with the terms of the Company Plan and all other applicable Law and (iii) the per share exercise price of each Company Option was not less than the fair market value of a share of Company Common Stock on the applicable Grant Date determined in a manner consistent with Section 409A of the Code.

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3.7 Financial Statements.

(a) Section 3.7(a) of the Company Disclosure Schedule includes true and complete copies of (i) the Company’s audited consolidated balance sheets at December 31, 2021 and December 31, 2022, (ii) the Company Unaudited Interim Balance Sheet, (iii) the Company’s audited consolidated statements of income, cash flow and stockholders’ equity for the years ended December 31, 2021 and December 31, 2022 and (iv) the Company’s unaudited statements of income, cash flow and stockholders’ equity for the three months ended March 31, 2023 (collectively, the “Company Financials”). The Company Financials (A) were prepared in accordance with United States generally accepted accounting principles (“GAAP”) (except as may be indicated in the footnotes to such Company Financials and that unaudited financial statements may not have notes thereto and other presentation items that may be required by GAAP and are subject to normal and recurring year-end adjustments that are not reasonably expected to be material in amount) applied on a consistent basis unless otherwise noted therein throughout the periods indicated and (B) fairly present, in all material respects, the financial position and operating results of the Company and its consolidated Subsidiaries as of the dates and for the periods indicated therein.

(b) Each of the Company and its Subsidiaries maintains a system of internal accounting controls designed to provide reasonable assurance that: (i) transactions are executed in accordance with management’s general or specific authorizations, (ii) transactions are recorded as necessary to permit preparation of the financial statements of the Company and its Subsidiaries in conformity with GAAP and to maintain accountability of the Company’s and its Subsidiaries’ assets, (iii) access to the Company’s and its Subsidiaries’ assets is permitted only in accordance with management’s general or specific authorization and (iv) the recorded accountability for the Company’s and its Subsidiaries’ assets is compared with the existing assets at regular intervals and appropriate action is taken with respect to any differences. The Company and each of its Subsidiaries maintains internal control over financial reporting that provides reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with GAAP.

(c) Section 3.7(c) of the Company Disclosure Schedule lists, and the Company has delivered to Terrain accurate and complete copies of the documentation creating or governing, all securitization transactions and “off-balance sheet arrangements” (as defined in Item 303(c) of Regulation S-K under the Exchange Act) effected by the Company or any of its Subsidiaries since January 1, 2021.

(d) Since January 1, 2021, there have been no formal internal investigations regarding financial reporting or accounting policies and practices discussed with, reviewed by or initiated at the direction of the chief executive officer, chief financial officer or general counsel of the Company, the Company Board or any committee thereof. Except as disclosed on Section 3.7(d) of the Company Disclosure Schedule, since January 1, 2021, neither the Company nor its independent auditors have identified (i) any significant deficiency or material weakness in the design or operation of the system of internal accounting controls utilized by the Company and its Subsidiaries, (ii) any fraud, whether or not material, that involves the Company, any of its Subsidiaries, the Company’s management or other employees who have a role in the preparation of financial statements or the internal accounting controls utilized by the Company and its Subsidiaries or (iii) any claim or allegation regarding any of the foregoing.

3.8 Absence of Changes. Except as set forth on Section 3.8 of the Terrain Disclosure Schedule, between December 31, 2022 and the date of this Agreement, the Company has conducted its business only in the Ordinary Course of Business (except for the execution and performance of this Agreement and the discussions, negotiations and transactions related thereto) and there has not been any (a) Company Material Adverse Effect or (b) action, event or occurrence that would have required consent of Terrain pursuant to Section 5.2(b) of this Agreement had such action, event or occurrence taken place after the execution and delivery of this Agreement.

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3.9 Absence of Undisclosed Liabilities. Neither the Company nor any of its Subsidiaries has any liability, indebtedness, obligation, expense, claim, deficiency, guaranty or endorsement of any kind, whether accrued, absolute, contingent, matured, unmatured or otherwise (each a “Liability”), in each case, of a type required to be reflected or reserved for on a balance sheet prepared in accordance with GAAP, except for: (a) Liabilities disclosed, reflected or reserved against in the Company Unaudited Interim Balance Sheet, (b) normal and recurring current Liabilities that have been incurred by the Company or its Subsidiaries since the date of the Company Unaudited Interim Balance Sheet in the Ordinary Course of Business (none of which relates to any breach of contract, breach of warranty, tort, infringement, or violation of Law), (c) Liabilities for performance of obligations of the Company or any of its Subsidiaries under Company Contracts, (d) Liabilities incurred in connection with the Contemplated Transactions and (e) Liabilities listed in Section 3.9 of the Company Disclosure Schedule.

3.10 Title to Assets. Each of the Company and its Subsidiaries owns, and has good and valid title to, or, in the case of leased properties and assets, valid leasehold interests in, all tangible properties or assets and equipment used or held for use in its business or operations or purported to be owned by it, including: (a) all assets reflected on the Company Unaudited Interim Balance Sheet and (b) all other assets reflected in the books and records of the Company or any of its Subsidiaries as being owned by the Company or such Subsidiary. All of such assets are owned or, in the case of leased assets, leased by the Company or any of its Subsidiaries free and clear of any Encumbrances, other than Permitted Encumbrances.

3.11 Real Property; Leasehold. Neither the Company nor any of its Subsidiaries owns or has ever owned any real property. The Company has made available to Terrain (a) an accurate and complete list of all real properties with respect to which the Company directly or indirectly holds a valid leasehold interest as well as any other real estate that is in the possession of or leased by the Company or any of its Subsidiaries and (b) copies of all leases under which any such real property is possessed (the “Company Real Estate Leases”), each of which is in full force and effect, with no existing material default thereunder.

3.12 Intellectual Property.

(a) Section 3.12(a) of the Company Disclosure Schedule is a complete listing of all Company Registered IP.

(b) Section 3.12(b) of the Company Disclosure Schedule accurately identifies all material Company Contracts pursuant to which Company IP Rights are licensed to the Company or any of its Subsidiaries (other than (A) any non-customized software that (1) is so licensed solely in executable or object code form pursuant to a non-exclusive, internal use software license and other Intellectual Property associated with such software and (2) is not incorporated into, or material to the development, manufacturing, or distribution of, any of the Company’s or any of its Subsidiaries’ products or services, (B) any Intellectual Property licensed on a non-exclusive basis ancillary to the purchase or use of equipment, reagents or other materials, (C) any confidential information provided under confidentiality agreements and (D) agreements between Company and its employees in Company’s standard form thereof).

(c) Section 3.12(c) of the Company Disclosure Schedule accurately identifies each Company Contract pursuant to which any Person has been granted any license or covenant not to sue under, or otherwise has received or acquired any right (whether or not currently exercisable) or interest in, any Company IP Rights (other than (i) any confidential information provided under confidentiality agreements and (ii) any Company IP Rights non-exclusively licensed to academic collaborators, suppliers or service providers for the sole purpose of enabling such academic collaborator, supplier or service providers to provide services for the Company’s benefit or in the case of academic institutions, to perform research).

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(d) Neither the Company nor any of its Subsidiaries is bound by, and no Company IP Rights that are owned by the Company or any of its Subsidiaries are subject to, any Company Contract containing any covenant or other provision that in any way limits or restricts the ability of the Company or any of its Subsidiaries to use, exploit, assert, or enforce anywhere in the world any Company IP Rights that are owned by the Company or any of its Subsidiaries.

(e) The Company or one of its Subsidiaries exclusively owns all right, title, and interest to and in Company IP Rights (other than (i) Company IP Rights licensed to the Company or one of its Subsidiaries each as identified in Section 3.12(c) of the Company Disclosure Schedule, (ii) Company IP Rights that are jointly owned by the Company or one of its Subsidiaries and another Person as identified in Section 3.12(e) of the Company Disclosure Schedule, (iii) any non-customized software that (A) is licensed to the Company or any of its Subsidiaries solely in executable or object code form pursuant to a non-exclusive, internal use software license and other Intellectual Property associated with such software and (B) is not incorporated into, or material to the development, manufacturing, or distribution of, any of the Company’s or any of its Subsidiaries’ products or services and (iv) any Intellectual Property licensed on a non-exclusive basis ancillary to the purchase or use of equipment, reagents or other materials), in each case, free and clear of any Encumbrances (other than Permitted Encumbrances). Without limiting the generality of the foregoing:

(i) All documents and instruments necessary to register or apply for or renew registration of Company Registered IP have been validly executed, delivered, and filed in a timely manner with the appropriate Governmental Authority.

(ii) Each Person who is or was an employee or contractor of the Company or any of its Subsidiaries and who is or was involved in the creation or development of any Company IP Rights purported to be owned by the Company has signed a valid, enforceable agreement containing a present assignment of such Intellectual Property to the Company or such Subsidiary and confidentiality provisions protecting trade secrets and confidential information of the Company and its Subsidiaries.

(iii) To the Knowledge of the Company, no current or former stockholder, officer, director, or employee of the Company or any of its Subsidiaries has any claim, right (whether or not currently exercisable), or interest to or in any Company IP Rights purported to be owned by the Company. To the Knowledge of the Company, no employee of the Company or any of its Subsidiaries is (a) bound by or otherwise subject to any Contract restricting him or her from performing his or her duties for the Company or such Subsidiary or (b) in breach of any Contract with any former employer or other Person concerning Company IP Rights purported to be owned by the Company or confidentiality provisions protecting trade secrets and confidential information comprising Company IP Rights purported to be owned by the Company.

(iv) No funding, facilities, or personnel of any Governmental Authority were used, directly or indirectly, to develop or create, in whole or in part, any Company IP Rights in which the Company or any of its Subsidiaries has an ownership interest.

(v) The Company and each of its Subsidiaries has taken reasonable steps to maintain the confidentiality of and otherwise protect and enforce its rights in all proprietary information that the Company or such Subsidiary holds, or purports to hold, as confidential or a trade secret.

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(vi) Neither the Company nor any of its Subsidiaries has assigned or otherwise transferred ownership of, or agreed to assign or otherwise transfer ownership of, any Company IP Rights to any other Person.

(vii) To the Knowledge of the Company, the Company IP Rights constitute all material Intellectual Property necessary for the Company and its Subsidiaries to conduct its business as currently conducted and planned to be conducted.

(f) The Company has delivered or made available to Terrain, a complete and accurate copy of all Company IP Rights Agreements. With respect to each of the material Company IP Rights Agreements: (i) each such agreement is valid, binding on, enforceable against the Company or its Subsidiaries, as applicable, in accordance with its terms, subject to the Enforceability Exceptions, (ii) the Company has not received any written notice of termination or cancellation under such agreement, or received any written notice of breach or default under such agreement, which breach has not been cured or waived and (iii) neither the Company nor its Subsidiaries, and to the Knowledge of the Company, no other party to any such agreement, is in breach or default thereof in any material respect.

(g) To the Knowledge of the Company, the manufacture, marketing, license, sale, offering for sale, importation, use or intended use or other disposal of any product or technology as currently licensed or sold or under development by the Company or any of its Subsidiaries (i) does not violate any Material Contract between Company or its Subsidiaries and any third party, and (ii) does not infringe or misappropriate any valid and issued Patent right of any other Person, other than any Company IP licensed to Terrain by any other Person, which infringement or misappropriation would reasonably be expected to have a Company Material Adverse Effect. To the Knowledge of the Company, no third party is infringing upon any Patents owned by Company within the Company IP Rights or is in violation of any Material Contract with the Company or its Subsidiaries under which Company has out-licensed any Company IP Rights.

(h) As of the date of this Agreement, Company is not a party to any Legal Proceeding (including, but not limited to, opposition, interference or other proceeding in any patent or other government office) contesting the validity ownership or right to use, sell, offer for sale, license or dispose of any Company Registered IP. Neither the Company nor any of its Subsidiaries has received any written notice asserting that Company or any of its Subsidiaries have infringed, misappropriated or otherwise violated any Intellectual Property of any Person. None of the Company IP Rights is subject to any outstanding order of, judgment of, decree of or agreement with any Governmental Authority that limits the ability of the Company to exploit any Company IP Rights.

(i) Each item of Company IP Rights that is Company Registered IP owned by the Company or any of its Subsidiaries is and at all times has been filed and maintained in compliance with all applicable Law and all filings, payments, and other actions required to be made or taken to maintain such item of Company Registered IP in full force and effect have been made by the applicable deadline. To the Knowledge of the Company, all Company Registered IP that is issued or granted is valid and enforceable.

(j) To the Knowledge of the Company, no trademark (whether registered or unregistered) or trade name owned, used, or applied for by the Company or any of its Subsidiaries conflicts or interferes with any trademark (whether registered or unregistered) or trade name owned, used, or applied for by any other Person. None of the goodwill associated with or inherent in any trademark (whether registered or unregistered) in which the Company or any of its Subsidiaries has or purports to have an ownership interest has been impaired as determined by the Company or any of its Subsidiaries in accordance with GAAP.

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(k) Except as set forth in Sections 3.12(b) or 3.12(c) of the Company Disclosure Schedule or as contained in license, distribution and service agreements entered into in the ordinary course of business by Company (i) neither the Company nor any of its Subsidiaries is bound by any Contract to indemnify, defend, hold harmless, or reimburse any other Person with respect to any infringement, misappropriation, or similar claim relating to Intellectual Property that is material to the Company and its Subsidiaries, taken as a whole and (ii) neither the Company nor any of its Subsidiaries has ever assumed, or agreed to discharge or otherwise take responsibility for, any existing or potential liability of another Person for infringement, misappropriation, or violation of any Intellectual Property right, which assumption, agreement or responsibility remains in force as of the date of this Agreement.

(l) Neither the Company nor any of its Subsidiaries is party to any Company IP Rights Contract that, as a result of such execution, delivery and performance of this Agreement, will cause the grant to any third party of any license or other right to any Company IP Rights, result in breach of, default under or termination of such Contract with respect to any Company IP Rights, or impair the right of the Company or the Surviving Corporation and its Subsidiaries to use, sell or license or enforce any Company IP Rights or portion thereof, except for the occurrence of any such grant or impairment that would not individually or in the aggregate, reasonably be expected to result in a Company Material Adverse Effect.

3.13 Agreements, Contracts and Commitments. Section 3.13 of the Company Disclosure Schedule identifies each Company Contract that is in effect as of the date of this Agreement and is:

(i) a Contract to which the Company is a party or by which any of its assets and properties is currently bound, which, pursuant to the express terms thereof, require annual obligations of payment by, or annual payments to, the Company in excess of $250,000,

(ii) a Contract requiring payments by the Company after the date of this Agreement in excess of $400,000 pursuant to its express terms relating to the employment of, or the performance of employment-related services by, any Person, including any employee, consultant or individual independent contractor, providing employment related, consulting or independent contractor services, not terminable by the Company or its Subsidiaries on ninety (90) calendar days’ or less notice without liability, except to the extent general principles of wrongful termination Law may limit the Company’s, its Subsidiaries or such successor’s ability to terminate employees at will;

(iii) a Company Real Estate Lease;

(iv) a Contract disclosed in or required to be disclosed in Section 3.12(b) or Section 3.12(c) of the Company Disclosure Schedule;

(v) a Contract containing (A) any covenant limiting the freedom of the Company, its Affiliates or the Surviving Corporation to engage in any line of business or compete with any Person, or limiting the development, manufacture or distribution of the Company’s products or services or (B) any grant of any option to any Intellectual Property rights;

(vi) a Contract with any Person, including any financial advisor, broker, finder, investment banker or other Person, providing advisory services to the Company or its Affiliates in connection with the Contemplated Transactions;

(vii) each Company Contract relating to any mortgages, indentures, loans, notes or credit agreements, security agreements or other agreements or instruments relating to the borrowing of money or extension of credit in excess of $100,000 or creating any material Encumbrances with respect to any assets of the Company or any of its Subsidiaries or any loans or debt obligations with officers or directors of the Company; or

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(viii) a Contract under which a third party would be entitled to receive a license or have any other rights in Intellectual Property of the Company, Terrain or any of their Affiliates at the time of or immediately after the Effective Time.

(ix) a Contract, plan, program, or policy providing for severance, termination compensation, retention or stay pay, change in control payments, or transaction-based bonuses. The Company has delivered or made available to the Terrain accurate and complete copies of all Contracts to which the Company is a party or by which it is bound of the type described in clauses (i)-(ix) of the immediately preceding sentence (any such Contract, a “Company Material Contract”), including all amendments thereto. Neither the Company nor any if Subsidiaries has, nor to the Company’s Knowledge as of the date of this Agreement, has any other party to a Company Material Contract, breached, violated or defaulted under, or received notice that it breached, violated or defaulted under, any of the terms or conditions of any Company Material Contract in such manner as would permit any other party to cancel or terminate any such Company Material Contract, or would permit any other party to seek damages which would reasonably be expected to have a Company Material Adverse Effect. As to the Company and its subsidiaries, as of the date of this Agreement, each Company Material Contract is valid, binding, enforceable and in full force and effect, subject to the Enforceability Exceptions. No Person is renegotiating, or has a right pursuant to the terms of any Company Material Contract or any other material term or provision of any Company Material Contract.

3.14 Compliance; Permits; Restrictions.

(a) The Company and each of its Subsidiaries are, and since January 1, 2021, have complied in all material respects with, are not in violation in any material respect of, and have not received any written notices of violation with respect to, applicable Law.

(b) The Company and each of its Subsidiaries are and, since January 1, 2021, have been in compliance in all material respects with all Health Care Laws applicable to the Company. Since January 1, 2021, the Company has not received any notice alleging any material violation with respect to any applicable Health Care Laws. There are no restrictions upon the Company and any of its Subsidiaries that have resulted from conduct in violation of any Health Care Law.

(c) The Company and each of its Subsidiaries are not currently and have not, since January 1, 2021, been: (i) a party to the terms of a corporate integrity agreement, monitoring agreement, deferred prosecution agreement, consent decree, settlement order, or similar agreement imposed by the Office of Inspector General of the Department of Health and Human Services or any other Governmental Authority; (ii) subject of any pending third party audit, other than routine customer audits, or investigation; (iii) named as a defendant in any action under the federal False Claims Act or any state equivalent; or (iv) the subject to any search warrant, subpoena, or civil investigative demand from any Governmental Authority with respect to any alleged violation of Law by the Company, and no such enforcement, regulatory or administrative proceeding is pending or threatened.

(d) The Company product candidates are being, and, since January 1, 2021, have been, developed, tested, manufactured, labeled, distributed and stored, as applicable, in compliance with the Federal Food, Drug, and Cosmetic Act (21 U.S.C. § 301 et seq.) and Public Health Service Act (42 U.S.C. § 262 et seq.), as amended, and applicable regulations promulgated by the U.S. Food and Drug

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Administration (“FDA”) and comparable applicable Laws outside of the United States, including those requirements relating to current good manufacturing practices, good laboratory practices and good clinical practices, as applicable, except in each case as has not had, and would not reasonably be expected to have, individually or in the aggregate, a Company Material Adverse Effect. To the extent the foregoing representation and warranty is made with respect to activities conducted by third parties, such representation and warranty is made solely to the Knowledge of the Company.

(e) Since January 1, 2021, the Company has not (i) made an untrue statement of a material fact or a fraudulent statement to the FDA, (ii) failed to disclose a material fact required to be disclosed to the FDA or (iii) failed to make a statement to the FDA, in each such case, related to the business of the Company, that, at the time such statement was made or such disclosure or statement was not made, would reasonably be expected to provide a basis for the FDA to invoke its policy respecting “Fraud, Untrue Statements of Material Facts, Bribery, and Illegal Gratuities”, set forth in 56 Fed. Reg. 46191 (September 10, 1991) or for any Governmental Authority to invoke any similar policy, except for any act or statement or failure to make a statement that has not had, and would not reasonably be expected to have, individually or in the aggregate, a Company Material Adverse Effect. Since January 1, 2021, the Company and any of its directors, officers, employees, or to the Knowledge of the Company, its contractors, have not been excluded from participation in any Federal Health Care Program or, to the Knowledge of the Company, engaged in any conduct for which the Company or any of its directors, officers, employees, or contractors could be excluded from participating in any Federal Health Care Program under 42 U.S.C. 1320a-7.

(f) The Company and its Subsidiaries hold the respective licenses, certificates, clearances, approvals, permits or other authorizations or registrations set forth in Section 3.14(f) of the Disclosure Schedule (the “Scheduled Permits”). The Scheduled Permits represent all the licenses, certificates, clearances, approvals, permits or other authorizations or registrations required for the Company to comply in all material respects with all Laws, including Health Care Laws, and all such Scheduled Permits are valid and in full force and effect. The Company and its Subsidiaries have not received any written notice or other written communication, any oral notice or other oral communication, from any Governmental Authority regarding (i) any actual or possible violation of applicable Law or any Scheduled Permit or any failure to comply with any term or requirement of any Scheduled Permit or (ii) any actual or possible revocation, withdrawal, suspension, cancellation, termination or modification of any Scheduled Permit.

3.15 Legal Proceedings; Orders.

(a) There is no pending Legal Proceeding and, to the Knowledge of the Company, no Person has threatened in writing to commence any Legal Proceeding: (i) that involves the Company or any of its Subsidiaries, any Company Associate (in his or her capacity as such) or any of the material assets owned or used by the Company or its Subsidiaries or (ii) that challenges, or that may have the effect of preventing, delaying, making illegal or otherwise interfering with, the Contemplated Transactions.

(b) There is no Order to which the Company or any of its Subsidiaries, or any of the material assets owned or used by the Company or any of its Subsidiaries, is subject. To the Knowledge of the Company, no officer or other Key Employee of the Company or any of its Subsidiaries is subject to any Order that prohibits such officer or employee from engaging in or continuing any conduct, activity or practice relating to the business of the Company or any of its Subsidiaries or to any material assets owned or used by the Company or any of its Subsidiaries.

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3.16 Tax Matters.

(a) The Company and each of its Subsidiaries have timely filed (taking into account automatic extensions of time to file) all federal income Tax Returns and other material Tax Returns that they were required to file under applicable Law. All such Tax Returns were correct and complete in all material respects and have been prepared in material compliance with all applicable Law. Subject to exceptions as would not be material, no written claim has ever been made by a Governmental Authority in a jurisdiction where the Company or any of its Subsidiaries does not file Tax Returns that the Company or any such Subsidiary is subject to taxation by that jurisdiction.

(b) All material Taxes due and owing by the Company and each of its Subsidiaries (whether or not shown on any Tax Return) have been paid. Since the date of the Company Unaudited Interim Balance Sheet, neither the Company nor any of its Subsidiaries has incurred any material Liability for Taxes outside the Ordinary Course of Business or otherwise inconsistent with past custom and practice, other than in connection with the transactions contemplated by this Agreement.

(c) The Company and each of its Subsidiaries have withheld and paid all material Taxes required to have been withheld and paid in connection with any amounts paid or owing to any employee, independent contractor, creditor, stockholder, or other third party.

(d) There are no Encumbrances for material Taxes (other than Permitted Encumbrances) upon any of the assets of the Company or any of its Subsidiaries.

(e) No deficiencies for material Taxes with respect to the Company or any of its Subsidiaries have been claimed, proposed or assessed by any Governmental Authority in writing. There are no pending (or, based on written notice, threatened) audits, assessments or other actions for or relating to any liability in respect of a material amount of Taxes of the Company or any of its Subsidiaries. Neither the Company nor any of its Subsidiaries (or any of their predecessors) has waived any statute of limitations in respect of material Taxes or agreed to any extension of time with respect to a material Tax assessment or deficiency.

(f) Neither the Company nor any of its Subsidiaries has been a United States real property holding corporation within the meaning of Section 897(c)(2) of the Code at any time during the five-year period ending on the Closing Date.

(g) Neither the Company nor any of its Subsidiaries is a party to any material Tax allocation, Tax sharing or similar agreement (including indemnity arrangements), other than customary Contracts entered into in the Ordinary Course of Business, including with vendors, customers, lenders, or landlords, the principal subject matter of which is not Taxes.

(h) Neither the Company nor any of its Subsidiaries has ever been a member of an affiliated group filing a consolidated U.S. federal income Tax Return (other than a group the common parent of which is the Company). Neither the Company nor any of its Subsidiaries has any material Liability for the Taxes of any Person (other than the Company and any of its Subsidiaries) under Treasury Regulations Section 1.1502-6 (or any similar provision of state, local, or foreign Law) or as a transferee or successor.

(i) Neither the Company nor any of its Subsidiaries has distributed stock of another Person, or has had its stock distributed by another Person, in a transaction that was purported or intended to be governed in whole or in part by Section 355 of the Code or Section 361 of the Code.

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(j) Neither the Company nor any of its Subsidiaries has entered into any transaction identified as a “listed transaction” for purposes of Treasury Regulations Sections 1.6011-4(b)(2) or ###-###-####-2(b)(2).

(k) Neither the Company nor any of its Subsidiaries has a permanent establishment (within the meaning of an applicable Tax treaty) or otherwise has an office or fixed place of business in a country other than the country in which it is organized.

(l) The Company is not an “investment company” within the meaning of Section 368(a)(2)(F) of the Code.

(m) Neither the Company nor any of its Subsidiaries, has taken or agreed to take, any action that would reasonably be expected to prevent the Merger from qualifying for the Intended Tax Treatment. To the Knowledge of the Company, no facts or circumstances exist that would reasonably be expected to prevent the Merger from qualifying for the Intended Tax Treatment.

Notwithstanding anything herein to the contrary, this Section 3.16 and, to the extent it relates to Taxes, Section 3.17, contain the sole representations concerning Taxes of the Company and its Subsidiaries.

3.17 Employee and Labor Matters; Benefit Plans.

(a) The employment of each of the Company’s and any of its Subsidiaries’ employees is terminable by the Company or the applicable Subsidiary at will. To the Knowledge of the Company, no officer or Key Employee of the Company or any of its Subsidiaries intends to terminate his or her employment with the Company or the applicable Subsidiary.

(b) Neither the Company nor any of its Subsidiaries is a party to, bound by, or has a duty to bargain under, any collective bargaining agreement or other Contract with a labor organization representing any of its employees, and there are no labor organizations representing or, to the Knowledge of the Company, purporting to represent or seeking to represent any employees of the Company or its Subsidiaries.

(c) Section 3.17(c) of the Company Disclosure Schedule lists all material Company Employee Plans. True, complete and correct copies of the following documents, with respect to each Company Employee Plan, where applicable, have previously been made available to Terrain: (i) all documents embodying or governing such Company Employee Plan (or for unwritten Company Employee Plans a written description of the material terms of such Company Employee Plan) and any funding medium for the Company Employee Plan; (ii) the most recent IRS determination or opinion letter; (iii) the most recently filed Form 5500; (iv) the most recent actuarial valuation report; (v) the most recent summary plan description (or other descriptions provided to employees) and all modifications thereto; (vi) the last three years of non-discrimination testing results; and (vii) all non-routine correspondence to and from any governmental agency.

(d) Each Company Employee Plan that is intended to be qualified under Section 401(a) of the Code has received a favorable determination or opinion letter with respect to such qualified status from the IRS. To the Knowledge of the Company, nothing has occurred that would reasonably be expected to adversely affect the qualified status of any such Company Employee Plan or the exempt status of any related trust or require corrective action to the IRS or Employee Plan Compliance Resolution System to maintain such qualification.

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(e) Each Company Employee Plan has been established, administered, maintained and operated in compliance, in all material respects, with its terms and all applicable Law, including the Code, ERISA, and the Affordable Care Act. No Legal Proceeding (other than those relating to routine claims for benefits) is pending or, to the Knowledge of the Company, threatened with respect to any Company Employee Plan. All payments and/or contributions required to have been made with respect to all Company Employee Plans either have been made or have been accrued in accordance with the terms of the applicable Company Employee Plan and applicable Law. The Company Employee Plans satisfy in all material respects the minimum coverage, affordability and non-discrimination requirements under the Code. No Company Employee Plan is, or within the past six years has been, the subject of an application or filing under a government sponsored amnesty, voluntary compliance, or similar program, or been the subject of any self-correction under any such program.

(f) Neither the Company nor any of its ERISA Affiliates has ever maintained, contributed to, or been required to contribute to (i) any employee benefit plan that is or was subject to Title IV or Section 302 of ERISA or Section 412 of the Code, (ii) a Multiemployer Plan, (iii) any funded welfare benefit plan within the meaning of Section 419 of the Code, (iv) any Multiple Employer Plan, or (v) any Multiple Employer Welfare Arrangement. Neither the Company nor any of its ERISA Affiliates has ever incurred any liability under Title IV of ERISA that has not been paid in full. No Company Employee Plan provides for medical or other welfare benefits beyond termination of service or retirement, other than pursuant to (i) COBRA or an analogous state law requirement or (ii) continuation coverage through the end of the month in which such termination or retirement occurs. Neither the Company nor any of its Subsidiaries sponsors or maintains any self-funded medical or long-term disability employee benefit plan. No Company Employee Plan is subject to any Law of a foreign jurisdiction outside of the United States.

(g) No Company Options or other equity-based awards issued or granted by the Company are subject to the requirements of Code Section 409A. Each Company Employee Plan that constitutes in any part a “nonqualified deferred compensation plan” (as such term is defined under Section 409A(d)(1) of the Code and the guidance thereunder) (each, a “Company 409A Plan”) complies in all material respects, in both form and operation, with the requirements of Code Section 409A and the guidance thereunder. No payment to be made under any Company 409A Plan is or, when made in accordance with the terms of the Company 409A Plan, will be subject to the penalties of Code Section 409A(a)(1).

(h) The Company and each of its Subsidiaries is in compliance in all material respects with all applicable federal, state and local laws, rules and regulations respecting employment, employment practices, terms and conditions of employment, worker classification, Tax withholding, prohibited discrimination, equal employment, fair employment practices, meal and rest periods, work authorization and immigration status, employee safety and health, wages (including overtime wages), compensation, and hours of work, and in each case, with respect to the employees of the Company and its Subsidiaries: (i) has withheld and reported all material amounts required by law or by agreement to be withheld and reported with respect to wages, salaries and other payments to employees, (ii) is not liable for any arrears of wages, severance pay or any Taxes or any penalty for failure to comply with any of the foregoing and (iii) is not liable for any material payment to any trust or other fund governed by or maintained by or on behalf of any governmental authority, with respect to unemployment compensation benefits, social security or other benefits or obligations for employees (other than routine payments to be made in the Ordinary Course of Business). There are no actions, suits, claims or administrative matters pending or, to the Knowledge of the Company, threatened against the Company or any of its Subsidiaries relating to any employee, employment agreement, Company Employee Plan (other than routine claims for benefits) or other labor or employment matter. To the Knowledge of the Company, there are no pending, threatened claims or actions against the Company, any of its Subsidiaries, any Company trustee or any trustee of any Subsidiary under any workers’ compensation policy or long-term disability policy. Neither the Company nor any Subsidiary thereof is a party to a conciliation agreement, consent decree or other agreement or Order with any federal, state, or local agency or Governmental Authority with respect to employment practices.

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(i) Neither the Company nor any of its Subsidiaries has any material liability with respect to any misclassification since January 1, 2021: (i) any Person as an independent contractor rather than as an employee, (ii) any employee leased from another employer or (iii) any employee currently or formerly classified as exempt from overtime wages. Neither the Company nor any of its Subsidiaries has taken any action which would constitute a “plant closing” or “mass layoff” within the meaning of the WARN Act or similar state or local law, issued any notification of a plant closing or mass layoff required by the WARN Act or similar state or local law, or incurred any liability or obligation under WARN or any similar state or local law that remains unsatisfied.

(j) There has never been, nor has there been any threat of, any strike, slowdown, work stoppage, lockout, job action, union, organizing activity, question concerning representation or any similar activity or dispute, affecting the Company or any of its Subsidiaries. No event has occurred within the past six months, and no condition or circumstance exists, that might directly or indirectly be likely to give rise to or provide a basis for the commencement of any such strike, slowdown, work stoppage, lockout, job action, union organizing activity, question concerning representation or any similar activity or dispute.

(k) Neither the Company nor any of its Subsidiaries is, nor has the Company or any of its Subsidiaries been, engaged in any unfair labor practice within the meaning of the National Labor Relations Act. There is no Legal Proceeding, claim, labor dispute or grievance pending or, to the Knowledge of the Company, threatened or reasonably anticipated relating to any employment contract, privacy right, labor dispute, wages and hours, leave of absence, plant closing notification, workers’ compensation policy, long-term disability policy, harassment, retaliation, immigration, employment statute or regulation, safety or discrimination matter involving any Company Associate, including charges of unfair labor practices or discrimination complaints.

(l) There is no contract, agreement, plan or arrangement to which the Company or any of its Subsidiaries is a party or by which it is bound to compensate any of its employees for excise Taxes paid pursuant to Section 4999 or Section 409A of the Code.

(m) Neither the Company nor any of its Subsidiaries is a party to any Contract that could, due to the Merger (either alone or in conjunction with any other event) (i) result in the payment of any “parachute payment” within the meaning of Section 280G of the Code or (ii) result in, or cause the accelerated vesting, payment, funding or delivery of, or increase the amount or value of, any payment or benefit to any current or former employee, officer, director or other service provider of the Company or any of its Subsidiaries.

(n) Since January 1, 2021, the Company and each of its Subsidiaries each have maintained policies (i) prohibiting employment discrimination on all grounds constituting unlawful discrimination, (ii) prohibiting sexual harassment and all other forms of discriminatory harassment, and (iii) providing complaint and investigation procedures with respect to (i) and (ii). Since January 1, 2021, any and all such policies have conformed with applicable legal requirements, including, as applicable, with respect to independent contractors. Since January 1, 2021, the Company and each of its Subsidiaries has complied with any applicable legal requirements with respect to training concerning prevention of sexual harassment prevention and/or abusive conduct. Except as set forth on Section 3.17(n) of the Company Disclosure Schedule, to the Knowledge of the Company, at no time during the last five years have any allegations been made within or outside the Company or any of its Subsidiaries alleging conduct that, if

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confirmed, would constitute violations of any of the policies referenced in (i) and/or (ii). Except as set forth on Section 3.17(n) of the Company Disclosure Schedule, to the Knowledge of the Company, at no time during the last five years has the Company or any of its Subsidiaries received a complaint within the scope of (iii) or conducted an investigation of allegations of any alleged violation of (i) or (ii). Except as set forth on Schedule 3.17(n), to the Knowledge of the Company, there are no facts that could reasonably be expected to give rise to a claim of sexual harassment or other discriminatory harassment against or involving the Company or any of its Subsidiaries or any employee, director or officer of the Company or any of its Subsidiaries.

(o) Neither the Company nor any of its Subsidiaries is a government contractor or subcontractor for any purposes of any law with respect to the terms and conditions of employment.

3.18 Environmental Matters. Since January 1, 2021, the Company and each of its Subsidiaries has complied with all applicable Environmental Laws, which compliance includes the possession by the Company of all permits and other Governmental Authorizations required under applicable Environmental Laws and compliance with the terms and conditions thereof, except for any failure to be in compliance that, individually or in the aggregate, would not result in a Company Material Adverse Effect. Neither the Company nor any of its Subsidiaries has received since January 1, 2021, any written notice or other communication (in writing or otherwise), whether from a Governmental Authority, citizens group, employee or otherwise, that alleges that the Company or any of its Subsidiaries is not in compliance with any Environmental Law and, to the Knowledge of the Company, there are no circumstances that may prevent or interfere with the Company’s or any of its Subsidiaries’ compliance with any Environmental Law in the future, except where such failure to comply would not reasonably be expected to have a Company Material Adverse Effect. To the Knowledge of the Company: (i) no current or prior owner of any property leased or controlled by the Company or any of its Subsidiaries has received since January 1, 2021, any written notice or other communication relating to property owned or leased at any time by the Company or any of its Subsidiaries, whether from a Governmental Authority, citizens group, employee or otherwise, that alleges that such current or prior owner or the Company or any of its Subsidiaries is not in compliance with or violated any Environmental Law relating to such property and (ii) neither the Company nor any of its Subsidiaries has any material liability under any Environmental Law.

3.19 Insurance. The Company has delivered to Terrain accurate and complete copies of all material insurance policies and all material self-insurance programs and arrangements relating to the business, assets, liabilities and operations of the Company and each of its Subsidiaries. Each of such insurance policies is in full force and effect and the Company and each of its Subsidiaries are in compliance in all material respects with the terms thereof. Other than customary end of policy notifications from insurance carriers, since January 1, 2021, neither the Company nor any of its Subsidiaries has received any notice or other communication regarding any actual or possible: (i) cancellation or invalidation of any insurance policy or (ii) refusal or denial of any coverage, reservation of rights or rejection of any material claim under any insurance policy. The Company and each of its Subsidiaries have provided timely written notice to the appropriate insurance carrier(s) of each Legal Proceeding pending against the Company or any of its Subsidiaries for which the Company or such Subsidiary has insurance coverage, and no such carrier has issued a denial of coverage or a reservation of rights with respect to any such Legal Proceeding, or informed the Company or any of its Subsidiaries of its intent to do so.

3.20 Securities Purchase Agreement. Neither the Company nor, to the Knowledge of the Company, any of its Affiliates has entered into any agreement, side letter or other arrangement relating to the Company Pre-Closing Financing other than as set forth in the Securities Purchase Agreement. The Securities Purchase Agreement is in full force and effect and represents a valid, binding and enforceable obligation of the Company and, to the Knowledge of the Company, of each party thereto, subject to the

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Enforceability Exceptions. To the Knowledge of the Company, no party thereto will be unable to satisfy on a timely basis any term of the Securities Purchase Agreement. There are no conditions precedent related to the consummation of the Company Pre-Closing Financing contemplated by the Securities Purchase Agreement, other than the satisfaction or waiver of the conditions expressly set forth in Sections 4 and 5 of the Securities Purchase Agreement. To the Knowledge of the Company, the proceeds of the Company Pre-Closing Financing will be made available to the Company concurrently with the consummation of the Merger.

3.21 No Financial Advisors. Except as set forth on Section 3.21 of the Company Disclosure Schedule, no broker, finder or investment banker is entitled to any brokerage fee, finder’s fee, opinion fee, success fee, transaction fee or other fee or commission in connection with the Contemplated Transactions based upon arrangements made by or on behalf of the Company or any of its Subsidiaries.

3.22 Transactions with Affiliates. Section 3.22 of the Company Disclosure Schedule describes any material transactions or relationships, since January 1, 2021, between, on one hand, the Company or any of its Subsidiaries and, on the other hand, any (a) executive officer or director of the Company or any of its Subsidiaries or any of such executive officer’s or director’s immediate family members, (b) owner of more than five percent (5%) of the voting power of the outstanding Company Capital Stock or (c) to the Knowledge of the Company, any “related person” (within the meaning of Item 404 of Regulation S-K under the Securities Act) of any such officer, director or owner (other than the Company or its Subsidiaries) in the case of each of (a), (b) or (c) that is of the type that would be required to be disclosed under Item 404 of Regulation S-K under the Securities Act.

3.23 Privacy and Data Security. The Company has complied in all material respects with all applicable Privacy Laws and the applicable terms of any Company Contracts relating to privacy, security, collection or use of Personal Data of any individuals (including clinical trial participants, patients, patient family members, caregivers or advocates, physicians and other health care professionals, clinical trial investigators, researchers, pharmacists) that interact with the Company in connection with the operation of the Company’s business. To the Knowledge of the Company, the Company has implemented and maintains reasonable written policies and procedures, satisfying the requirements of applicable Privacy Laws, concerning the privacy, security, collection and use of Personal Data (the “Privacy Policies”) and has complied with the same, except for such noncompliance as has not to the Knowledge of the Company had, and would not reasonably be expected to have, individually or in the aggregate, a Company Material Adverse Effect. To the Knowledge of the Company, as of the date hereof, no claims have been asserted or threatened against the Company by any Person alleging a violation of Privacy Laws, Privacy Policies and/or the applicable terms of any Company Contracts relating to privacy, security, collection or use of Personal Data of any individuals. To the Knowledge of the Company, there have been no data security incidents, Personal Data breaches or other adverse events or incidents related to Personal Data or Company data in the custody or control of the Company or any service provider acting on behalf of the Company, in each case where such incident, breach or event would result in a notification obligation to any Person under applicable law or pursuant to the terms of any Company Contract.

3.24 No Other Representations or Warranties. The Company hereby acknowledges and agrees that, except for the representations and warranties contained in this Agreement, neither Terrain nor any other person on behalf of Terrain makes any express or implied representation or warranty with respect to Terrain or with respect to any other information provided to the Company, any of its Subsidiaries or stockholders or any of their respective Affiliates in connection with the transactions contemplated hereby, and (subject to the express representations and warranties of Terrain set forth in Section 4 (in each case as qualified and limited by the Terrain Disclosure Schedule)) none of the Company, its Subsidiaries or any of their respective Representatives or stockholders, has relied on any such information (including the accuracy or completeness thereof).

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Section 4. Representations and Warranties of Terrain and Merger Sub.

Except (i) as set forth in the written disclosure schedule delivered by Terrain to the Company (the “Terrain Disclosure Schedule”) or (ii) as disclosed in the Terrain SEC Documents filed with the SEC on or before the day that is one (1) Business Day prior to the date hereof and publicly available on the SEC’s Electronic Data Gathering Analysis and Retrieval system (but (A) without giving effect to any amendment thereof filed with, or furnished to the SEC on or after the day that is one (1) Business Day prior to the date hereof and (B) excluding any disclosures contained under the heading “Risk Factors” and any disclosure of risks included in any “forward-looking statements” disclaimer or in any other section to the extent they are forward-looking statements or cautionary, predictive or forward-looking in nature), it being understood that any matter disclosed in the Terrain SEC Documents shall not be deemed disclosed for purposes of Sections 4.1, 4.2, 4.3, 4.5 (except to the extent a Terrain Material Contract was filed as an exhibit to any of the Terrain SEC Documents), and 4.6, Terrain and Merger Sub represent and warrant to the Company as follows:

4.1 Due Organization; Subsidiaries.

(a) Each of Terrain and Merger Sub is a corporation duly incorporated, validly existing and in good standing under the laws of the State of Delaware and has all necessary corporate power and authority: (i) to conduct its business in the manner in which its business is currently being conducted, (ii) to own or lease and use its property and assets in the manner in which its property and assets are currently owned or leased and used and (iii) to perform its obligations under all Contracts by which it is bound. Since the date of its incorporation, Merger Sub has not engaged in any activities other than in connection with or as contemplated by this Agreement.

(b) Terrain is licensed and qualified to do business, and is in good standing (to the extent applicable in such jurisdiction), under the Laws of all jurisdictions where the nature of its business requires such licensing or qualification other than in jurisdictions where the failure to be so qualified individually or in the aggregate would not be reasonably expected to have a Terrain Material Adverse Effect.

(c) Terrain has no Subsidiaries other than Merger Sub and Terrain does not own any capital stock of, or any equity ownership or profit-sharing interest of any nature in, or control directly or indirectly, any other Entity other than Merger Sub. Terrain is not and has not otherwise been, directly or indirectly, a party to, member of or participant in any partnership, joint venture or similar business entity. Terrain has not agreed and is not obligated to make, nor is Terrain bound by any Contract under which it may become obligated to make, any future investment in or capital contribution to any other Entity. Terrain has not, at any time, been a general partner of, and has not otherwise been liable for any of the debts or other obligations of, any general partnership, limited partnership or other Entity.

4.2 Organizational Documents. Terrain has delivered to the Company accurate and complete copies of Terrain’s Organizational Documents. Terrain is not in breach or violation of its Organizational Documents in any material respect.

4.3 Authority; Binding Nature of Agreement. Each of Terrain and Merger Sub has all necessary corporate power and authority to enter into and to perform its obligations under this Agreement and to consummate the Contemplated Transactions. The Terrain Board (at meetings duly called and held) has: (a) determined that the Contemplated Transactions are fair to, advisable and in the best interests of Terrain and its stockholders, (b) approved and declared advisable this Agreement and the Contemplated Transactions, including the issuance of shares of Terrain Common Stock to the stockholders of the Company pursuant to the terms of this Agreement, (c) determined to recommend, upon the terms and

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subject to the conditions set forth in this Agreement, that the stockholders of Terrain vote to approve the Contemplated Transactions, including the issuance of shares of Terrain Common Stock to the stockholders of the Company and an amendment to Terrain’s certificate of incorporation to effect the Reverse Stock Split pursuant to the terms of this Agreement. The Merger Sub Board (by unanimous written consent) has: (x) determined that the Contemplated Transactions are fair to, advisable, and in the best interests of Merger Sub and its sole stockholder, (y) deemed advisable and approved this Agreement and the Contemplated Transactions and (z) determined to recommend, upon the terms and subject to the conditions set forth in this Agreement, that the stockholder of Merger Sub vote to adopt this Agreement and thereby approve the Contemplated Transactions. This Agreement has been duly executed and delivered by Terrain and Merger Sub and, assuming the due authorization, execution and delivery by the Company, constitutes the legal, valid and binding obligation of Terrain and Merger Sub, enforceable against each of Terrain and Merger Sub in accordance with its terms, subject to the Enforceability Exceptions.

4.4 Vote Required. The affirmative vote of a majority of (a) the votes cast is the only vote of the holders of any class or series of Terrain’s capital stock necessary to approve the proposal in Section 6.3(a)(i) and Section 6.3(a)(ii), and (b) the shares of Terrain Common Stock entitled to vote thereon is the only vote of the holders of any class or series of Terrain’s capital stock necessary to approve the proposal in Section 6.3(a)(iii), provided that this clause (b) shall be deemed to refer to the lowest vote threshold permissible under the DGCL if the DGCL is amended prior to the Terrain Stockholder Meeting to lower the minimum vote required for a reverse stock split and Terrain is eligible to use such lower threshold, (c) the votes cast is the only vote of the holders of any class or series of Terrain’s capital stock necessary to approve the proposal in Section 6.3(a)(v), and (d) the shares of Terrain Common Stock entitled to vote thereon is the only vote of the holders of any class or series of Terrain’s capital stock necessary to approve the proposal in Section 6.3(a)(v) (such vote in the foregoing clauses (a) and (b), the “Required Terrain Stockholder Vote”).

4.5 Non-Contravention; Consents.

(a) Subject to obtaining the Required Terrain Stockholder Vote and the filing of the Certificate of Merger required by the DGCL, neither (x) the execution, delivery or performance of this Agreement by Terrain or Merger Sub, nor (y) the consummation of the Contemplated Transactions, will directly or indirectly (with or without notice or lapse of time):

(i) contravene, conflict with or result in a violation of any of the provisions of the Organizational Documents of Terrain or Merger Sub;

(ii) contravene, conflict with or result in a material violation of, or give any Governmental Authority or other Person the right to challenge the Contemplated Transactions or to exercise any remedy or obtain any relief under, any Law or any Order to which Terrain or any of the assets owned or used by Terrain, is subject;

(iii) contravene, conflict with or result in a material violation of any of the terms or requirements of, or give any Governmental Authority the right to revoke, withdraw, suspend, cancel, terminate or modify, any Governmental Authorization that is held by Terrain;

(iv) contravene, conflict with or result in a violation or breach of, or result in a default under, any provision of any Terrain Material Contract, or give any Person the right to: (A) declare a default or exercise any remedy under any Terrain Material Contract, (B) any material payment, rebate, chargeback, penalty or change in delivery schedule under any such Terrain Material Contract, (C) accelerate the maturity or performance of any Terrain Material Contract or (D) cancel, terminate or modify any term of any Terrain Material Contract, except in the case of any non-material breach, default, penalty or modification; or

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(v) result in the imposition or creation of any Encumbrance upon or with respect to any asset owned or used by Terrain (except for Permitted Encumbrances).

(b) Except for (i) any Consent set forth on Section 4.5 of the Terrain Disclosure Schedule under any Terrain Contract, (ii) the Required Terrain Stockholder Vote, (iii) the filing of the Certificate of Merger with the Secretary of State of the State of Delaware pursuant to the DGCL, and (iv) such consents, waivers, approvals, orders, authorizations, registrations, declarations and filings as may be required under applicable federal and state securities laws, Terrain was not, is not, and will not be required to make any filing with or give any notice to, or to obtain any Consent from, any Person in connection with (x) the execution, delivery or performance of this Agreement or (y) the consummation of the Contemplated Transactions.

(c) The Terrain Board and the Merger Sub Board have taken and will take all actions necessary to ensure that the restrictions applicable to business combinations contained in Section 203 of the DGCL are, and will be, inapplicable to the execution, delivery and performance of this Agreement and the Terrain Stockholder Support Agreements and to the consummation of the Contemplated Transactions. No other state takeover statute or similar Law applies or purports to apply to the Merger, this Agreement, any Terrain Stockholder Support Agreements or any of the other Contemplated Transactions.

4.6 Capitalization.

(a) The authorized capital stock of Terrain consists of (i) 140,000,000 shares of Terrain Common Stock, par value $0.0001 per share, all of which are entitled to vote and of which 42,410,645 shares have been issued and are outstanding as of June 21, 2023 (the “Capitalization Date”), (ii) 10,000,000 shares of non-voting Terrain Common Stock, par value $0.0001 per share, of which no shares have been issued and are outstanding as of the Capitalization Date, and (iii) 10,000,000 shares of preferred stock, par value $0.0001 per share, of which no shares have been issued and are outstanding as of the Capitalization Date. Terrain does not hold any shares of its capital stock in its treasury.

(b) All of the outstanding shares of Terrain Common Stock have been duly authorized and validly issued, and are fully paid and nonassessable and are free of any Encumbrances. None of the outstanding shares of Terrain Common Stock is entitled or subject to any preemptive right, right of participation, right of maintenance or any similar right. None of the outstanding shares of Terrain Common Stock is subject to any right of first refusal in favor of Terrain. Except as contemplated herein or as listed on Section 4.6(b) of the Terrain Disclosure Schedule, there is no Terrain Contract relating to the voting or registration of, or restricting any Person from purchasing, selling, pledging or otherwise disposing of (or granting any option or similar right with respect to), any shares of Terrain Common Stock. Terrain is not under any obligation, nor is Terrain bound by any Contract pursuant to which it may become obligated, to repurchase, redeem or otherwise acquire any outstanding shares of Terrain Common Stock or other securities. Section 4.6(b) of the Terrain Disclosure Schedule accurately and completely describes all repurchase rights held by Terrain with respect to shares of Terrain Common Stock (including shares issued pursuant to the exercise of stock options) and specifies which of those repurchase rights are currently exercisable.

(c) Except for the Terrain 2018 Equity Incentive Plan and the Terrain 2021 Stock Option and Incentive Plan (each as amended and collectively, the “Terrain Stock Plans”) and the Terrain 2021 Employee Stock Purchase Plan (as amended, the “Terrain ESPP”), and except as set forth on Section 4.6(c) of the Terrain Disclosure Schedule, Terrain does not have any stock option plan or any

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other plan, program, agreement or arrangement providing for any equity-based compensation for any Person. As of June 21, 2023, Terrain has reserved 9,477,369 shares of Terrain Common Stock for issuance under the Terrain Stock Plans, of which 82,505 shares have been issued and are currently outstanding, 6,157,124 shares have been reserved for issuance upon exercise of Terrain Options, 894,162 shares have been reserved for issuance upon settlement of Terrain RSUs, 1,000,000 shares are underlying Terrain SARs, and 1,500,849 shares remain available for future issuance pursuant to the Terrain Stock Plans. As of the date of this Agreement, Terrain has reserved 1,584,319 shares of Terrain Common Stock for future issuance pursuant to the Terrain ESPP. Section 4.6(c) of the Terrain Disclosure Schedule sets forth the following information with respect to each Terrain Option, each Terrain SAR and each Terrain RSU outstanding as of the date of this Agreement, as applicable: (i) the name of the holder, (ii) the number of shares of Terrain Common Stock subject to such Terrain Option, Terrain SAR and Terrain RSU at the time of grant, (iii) the number of shares of Terrain Common Stock subject to such Terrain Option, Terrain SAR and Terrain RSU as of the date of this Agreement, (iv) the exercise price of such Terrain Option or Terrain SAR, (v) the date on which such Terrain Option, Terrain SAR and Terrain RSU was granted, (vi) the applicable vesting schedule, including any acceleration provisions and the number of vested and unvested shares as of the date of this Agreement, (vii) the date on which such Terrain Option, Terrain RSU or Terrain SAR expires and (viii) whether such Terrain Option is intended to be an “incentive stock option” (as defined in the Code) or a non-qualified stock option. Except as set forth on Section 4.6(c) of the Terrain Disclosure Schedule, no vesting of Terrain Options, Terrain SARs, or Terrain RSUs will accelerate in connection with the closing of the Contemplated Transactions, except as contemplated by this Agreement. Terrain has made available to the Company accurate and complete copies of equity incentive plans pursuant to which Terrain has equity-based awards, the forms of all award agreements evidencing such equity-based awards and evidence of board and stockholder approval of the Terrain Stock Plans and any amendments thereto.

(d) Except for the outstanding Terrain Options, Terrain RSUs and Terrain SARs or as set forth on Section 4.6(d) of the Terrain Disclosure Schedule, there is no: (i) outstanding subscription, option, call, warrant or right (whether or not currently exercisable) to acquire any shares of the capital stock or other securities of Terrain, (ii) outstanding security, instrument or obligation that is or may become convertible into or exchangeable for any shares of the capital stock or other securities of Terrain, (iii) stockholder rights plan (or similar plan commonly referred to as a “poison pill”) or Contract under which Terrain is or may become obligated to sell or otherwise issue any shares of its capital stock or any other securities or (iv) condition or circumstance that may give rise to or provide a basis for the assertion of a claim by any Person to the effect that such Person is entitled to acquire or receive any shares of capital stock or other securities of Terrain. There are no outstanding or authorized stock appreciation, phantom stock, profit participation or other similar rights with respect to Terrain.

(e) All outstanding shares of Terrain Common Stock, and all outstanding shares underlying Terrain Options, Terrain RSUs, Terrain SARs and other securities of Terrain, including securities reserved pursuant to the Terrain ESPP, have been issued and granted in material compliance with (i) all applicable securities laws and other applicable Law and (ii) all requirements set forth in applicable Contracts.

(f) With respect to Terrain Options, Terrain RSUs, and Terrain SARs granted pursuant to the Terrain Stock Plans, (i) each grant was duly authorized no later than the date on which the grant was by its terms to be effective by all necessary corporate action, including, as applicable, approval by the Terrain Board (or a duly constituted and authorized committee thereof) and any required stockholder approval by the necessary number of votes or written consents and the award agreement covering such grant (if any) was duly executed and delivered by each party thereto, (ii) each Terrain Option, Terrain RSU and Terrain SAR grant was made in all material respects in accordance with the terms of the Terrain Stock Plan pursuant to which it was granted and, to the Knowledge of Terrain, all other applicable Law and regulatory rules or requirements.

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4.7 SEC Filings; Financial Statements.

(a) Terrain has filed or furnished, as applicable, on a timely basis all forms, statements, certifications, reports, schedules, exhibits and other documents required to be filed or furnished by it with the SEC under the Exchange Act or the Securities Act since January 1, 2021 (the “Terrain SEC Documents”). As of the time it was filed with the SEC (or, if amended or superseded by a filing prior to the date of this Agreement, then on the date of such filing), each of the Terrain SEC Documents complied in all material respects with the applicable requirements of the Securities Act or the Exchange Act (as the case may be) and, to Terrain’s Knowledge, as of the time they were filed, none of the Terrain SEC Documents contained any untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading. The certifications and statements required by (i) Rule 13a-14 under the Exchange Act and (ii) 18 U.S.C. §1350 (Section 906 of the Sarbanes-Oxley Act) relating to the Terrain SEC Documents (collectively, the “Certifications”) are accurate and complete and comply as to form and content with all applicable Laws. As used in this Section 4.7, the term “file” and variations thereof shall be broadly construed to include any manner in which a document or information is furnished, supplied or otherwise made available to the SEC.

(b) The financial statements (including any related notes) contained or incorporated by reference in the Terrain SEC Documents: (i) complied as to form in all material respects with the Securities Act and the Exchange Act, as applicable, and the published rules and regulations of the SEC applicable thereto, (ii) were prepared in accordance with GAAP (except as may be indicated in the notes to such financial statements or, in the case of unaudited financial statements, as permitted by Form 10-Q of the SEC, and except that the unaudited financial statements may not contain footnotes and are subject to normal and recurring year-end adjustments that are not reasonably expected to be material in amount) applied on a consistent basis unless otherwise noted therein throughout the periods indicated and (iii) fairly present, in all material respects, the financial position of Terrain as of the respective dates thereof and the results of operations and cash flows of Terrain for the periods covered thereby. Other than as expressly disclosed in the Terrain SEC Documents filed prior to the date hereof, there has been no material change in Terrain’s accounting methods or principles that would be required to be disclosed in Terrain’s financial statements in accordance with GAAP. The books of account and other financial records of Terrain and each of its Subsidiaries are true and complete in all material respects.

(c) Terrain’s auditor has at all times since the date of enactment of the Sarbanes-Oxley Act been: (i) a registered public accounting firm (as defined in Section 2(a)(12) of the Sarbanes-Oxley Act), (ii) to the Knowledge of Terrain, “independent” with respect to Terrain within the meaning of Regulation S-X under the Exchange Act and (iii) to the Knowledge of Terrain, in compliance with subsections (g) through (l) of Section 10A of the Exchange Act and the rules and regulations promulgated by the SEC and the Public Company Accounting Oversight Board thereunder.

(d) Except as set forth on Section 4.7(d) of the Terrain Disclosure Schedule, Terrain has not received any comment letter from the SEC or the staff thereof or any correspondence from Nasdaq or the staff thereof relating to the delisting or maintenance of listing of the Terrain Common Stock on Nasdaq. Terrain has not disclosed any unresolved comments in the Terrain SEC Documents.

(e) Since January 1, 2021, there have been no formal internal investigations regarding financial reporting or accounting policies and practices discussed with, reviewed by or initiated at the direction of the chief executive officer, chief financial officer, or general counsel of Terrain, the Terrain Board or any committee thereof, other than ordinary course audits or reviews of accounting policies and practices or internal controls required by the Sarbanes-Oxley Act.

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(f) Except as set forth on Section 4.7(f) of the Terrain Disclosure Schedule, Terrain is in compliance in all material respects with the applicable provisions of the Sarbanes-Oxley Act and the applicable listing and governance rules and regulations of Nasdaq.

(g) Terrain maintains a system of internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) of the Exchange Act) that is sufficient to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with GAAP, including policies and procedures sufficient to provide reasonable assurance (i) that Terrain maintains records that in reasonable detail accurately and fairly reflect Terrain’s transactions and dispositions of assets, (ii) that transactions are recorded as necessary to permit preparation of financial statements in accordance with GAAP, (iii) that receipts and expenditures are made only in accordance with authorizations of management and the Terrain Board and (iv) regarding prevention or timely detection of the unauthorized acquisition, use or disposition of Terrain’s assets that could have a material effect on Terrain’s financial statements. Terrain has evaluated the effectiveness of Terrain’s internal control over financial reporting and, to the extent required by applicable Law, presented in any applicable Terrain SEC Document that is a report on Form 10-K or Form 10-Q (or any amendment thereto) its conclusions about the effectiveness of the internal control over financial reporting as of the end of the period covered by such report or amendment based on such evaluation. Terrain has disclosed to Terrain’s auditors and the Audit Committee of the Terrain Board (and made available to the Company a summary of the significant aspects of such disclosure) (A) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting that are reasonably likely to adversely affect Terrain’s ability to record, process, summarize and report financial information and (B) any fraud, whether or not material, that involves management or other employees who have a significant role in Terrain’s or its Subsidiaries’ internal control over financial reporting. Except as disclosed in the Terrain SEC Documents filed prior to the date hereof, Terrain has not identified any material weaknesses in the design or operation of Terrain’s internal control over financial reporting.

(h) Terrain’s “disclosure controls and procedures” (as defined in Rules 13a-15(e) and 15d-15(e) of the Exchange Act) are reasonably designed to ensure that all information (both financial and non-financial) required to be disclosed by Terrain in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the rules and forms of the SEC, and that all such information is accumulated and communicated to Terrain’s principal executive officer and principal financial officer as appropriate to allow timely decisions regarding required disclosure and to make the Certifications and such disclosure controls and procedures are reasonably effective. Terrain has carried out the evaluation of the effectiveness of its disclosure controls and procedures as required by Rule 13a-15 of the Exchange Act.

(i) As of the date hereof and as of the date of effectiveness of the Registration Statement, Terrain qualifies as a “smaller reporting company” as defined in Item 10(f)(1) of Regulation S-K as promulgated under the Securities Act and an “emerging growth company” as defined in Section 2(a)(19) of the Securities Act.

(j) Terrain has not been and is not currently determined to be a “shell company” as defined under Section 12b-2 of the Exchange Act.

4.8 Absence of Changes. Except as set forth on Section 4.8 of the Terrain Disclosure Schedule, between December 31, 2022 and the date of this Agreement, Terrain has conducted its business only in the Ordinary Course of Business (except for the execution and performance of this Agreement and the discussions, negotiations and transactions related thereto) and there has not been any (a) Terrain Material Adverse Effect or (b) action, event or occurrence that would have required consent of the Company pursuant to Section 5.1(b) of this Agreement had such action, event or occurrence taken place after the execution and delivery of this Agreement.

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4.9 Absence of Undisclosed Liabilities. Terrain does not have any Liability of a type required to be reflected or reserved for on a balance sheet prepared in accordance with GAAP, except for: (a) Liabilities disclosed, reflected or reserved against in the Terrain Unaudited Interim Balance Sheet, (b) normal and recurring current Liabilities that have been incurred by Terrain since the date of the Terrain Unaudited Interim Balance Sheet in the Ordinary Course of Business (none of which relates to any breach of contract, breach of warranty, tort, infringement, or violation of Law), (c) Liabilities for performance of obligations of Terrain under Terrain Contracts and (d) Liabilities described in Section 4.9 of the Terrain Disclosure Schedule.

4.10 Title to Assets. Terrain owns, and has good and valid title to, or, in the case of leased properties and assets, valid leasehold interests in, all tangible properties or assets and equipment used or held for use in its business or operations or purported to be owned by it, including: (a) all assets reflected on the Terrain Unaudited Interim Balance Sheet and (b) all other assets reflected in the books and records of Terrain as being owned by Terrain. All of such assets are owned or, in the case of leased assets, leased by Terrain free and clear of any Encumbrances, other than Permitted Encumbrances.

4.11 Real Property; Leasehold. Except as listed in Section 4.11 of the Terrain Disclosure Schedule, Terrain does not own and has never owned any real property. Terrain has made available to the Company (a) an accurate and complete list of all real properties with respect to which Terrain directly or indirectly holds a valid leasehold interest as well as any other real estate that is in the possession of or leased by Terrain and (b) copies of all leases under which any such real property is possessed (the “Terrain Real Estate Leases”), each of which is in full force and effect, with no existing material default thereunder.

4.12 Intellectual Property.

(a) Section 4.12(a) of the Terrain Disclosure Schedule is an accurate, true and complete listing of all Terrain Registered IP.

(b) Section 4.12(b) of the Terrain Disclosure Schedule accurately identifies (i) all material Terrain Contracts pursuant to which Terrain IP Rights are licensed to Terrain (other than (A) any non-customized software that (1) is so licensed solely in executable or object code form pursuant to a non-exclusive, internal use software license and other Intellectual Property associated with such software and (2) is not incorporated into, or material to the development, manufacturing, or distribution of, any of Terrain products or services, (B) any Intellectual Property licensed on a non-exclusive basis ancillary to the purchase or use of equipment, reagents or other materials, (C) any confidential information provided under confidentiality agreements and (D) agreements between Terrain and its employees in Terrain’s standard form thereof) and (ii) whether the license or licenses granted to Terrain are exclusive or non-exclusive.

(c) Section 4.12(c) of the Terrain Disclosure Schedule accurately identifies each Terrain Contract pursuant to which any Person has been granted any license under, or otherwise has received or acquired any right (whether or not currently exercisable) or interest in, any Terrain IP Rights (other than (i) any confidential information provided under confidentiality agreements and (ii) any Terrain IP Rights non-exclusively licensed to academic collaborators, suppliers or service providers for the sole purpose of enabling such academic collaborator, supplier or service providers to provide services for Terrain’s benefit).

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(d) Terrain has delivered, or made available to the Company, a complete and accurate copy of all material Terrain IP Rights Agreements.

(e) Neither the manufacture, marketing, license, offering for sale, sale, importation, use or intended use or other disposal of any product or technology as currently licensed or sold or under development by Terrain, to the Knowledge of Terrain, (i) violates any Terrain Material Contract, nor (ii) infringes or misappropriates any valid and issued Patent right of any other Person, other than any Terrain IP licensed to Company by any other Person, which infringement or misappropriation would reasonably be expected to have a Terrain Material Adverse Effect. To the Knowledge of Terrain, no third party is infringing upon any Patents owned by Terrain within the Terrain IP Rights, or violating any license or agreement with Terrain relating to any Terrain IP Rights or is in violation of any Terrain Material Contract under which Company has out-licensed any Terrain IP Rights.

(f) As of the date of this Agreement, Terrain is not a party to any Legal Proceeding (including, but not limited to, opposition, interference or other proceeding in any patent or other government office) contesting the validity, ownership or right to use, sell, offer for sale, license or dispose of any Terrain Registered IP. Terrain has not received any written notice asserting that any Terrain Registered IP or the proposed use, sale, offer for sale, license or disposition of any products, methods, or processes claimed or covered thereunder conflicts with or infringes or misappropriates or violates the rights of any other Person or that Terrain or any of its Subsidiaries have otherwise infringed, misappropriated or otherwise violated any Intellectual Property of any Person.

(g) To the Knowledge of Terrain, no trademark (whether registered or unregistered) or trade name owned, used, or applied for by Terrain conflicts or interferes with any trademark (whether registered or unregistered) or trade name owned, used, or applied for by any other Person except as would not have a Terrain Material Adverse Effect. None of the goodwill associated with or inherent in any trademark (whether registered or unregistered) in which Terrain has or purports to have an ownership interest has been impaired as determined by Terrain in accordance with GAAP.

(h) Except as may be set forth in the Contracts listed on Section 4.12(b) or 4.12(c) of the Terrain Disclosure Schedule or as contained in license, distribution and service agreements entered into in the Ordinary Course of Business by Terrain (i) Terrain is not bound by any Contract to indemnify, defend, hold harmless, or reimburse any other Person with respect to any Intellectual Property infringement, misappropriation, or similar claim which is material to Terrain taken as a whole and (ii) Terrain has never assumed, or agreed to discharge or otherwise take responsibility for, any existing or potential liability of another Person for infringement, misappropriation, or violation of any Intellectual Property right, which assumption, agreement or responsibility remains in force as of the date of this Agreement.

4.13 Agreements, Contracts and Commitments. Section 4.13 of the Terrain Disclosure Schedule identifies each Terrain Contract that is in effect as of the date of this Agreement and is:

(i) a material contract as defined in Item 601(b)(10) of Regulation S-K as promulgated under the Securities Act,

(ii) a Contract to which Terrain is a party or by which any of its assets and properties is currently bound, which, pursuant to the express terms thereof, require annual obligations of payment by, or annual payments to, Terrain in excess of $150,000,

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(iii) a Contract requiring payments by Terrain or any of its Subsidiaries after the date of this Agreement in excess of $200,000 pursuant to its express terms relating to the employment of, or the performance of employment-related services by, any Person, including any employee, consultant or individual independent contractor, providing employment related, consulting or independent contractor services, not terminable by Terrain or its Subsidiaries on ninety (90) calendar days’ or less notice without liability, except to the extent general principles of wrongful termination Law may limit Terrain’s, its Subsidiaries’ or such successor’s ability to terminate employees at will;

(iv) each Terrain Contract relating to any agreement or plan, including any stock option plan, stock appreciation right plan or stock purchase plan, any of the benefits of which could be increased, or the vesting of benefits of which could be accelerated, by the occurrence of any of the Contemplated Transactions (either alone or in conjunction with any other event, such as termination of service), or the value of any of the benefits of which will be calculated on the basis of any of the Contemplated Transactions;

(v) a Terrain Real Estate Lease or a Contract disclosed in or required to be disclosed in Section 4.12(b) or Section 4.12(c) of the Terrain Disclosure Schedule;

(vi) a Contract containing (A) any covenant limiting the freedom of Terrain, its Affiliates or the Surviving Corporation to engage in any line of business or compete with any Person, or limiting the development, manufacture or distribution of the Terrain’s products or services or (B) any grant of any option to any Intellectual Property rights,

(vii) a Contract with any Person, including any financial advisor, broker, finder, investment banker or other Person, providing advisory services to Terrain or its Affiliates in connection with the Contemplated Transactions,

(viii) each Contract relating to any mortgages, indentures, loans, notes or credit agreements, security agreements or other agreements or instruments relating to the borrowing of money or extension of credit in excess of $100,000 or creating any material Encumbrances with respect to any assets of Terrain or any of its Subsidiaries or any loans or debt obligations with officers or directors of Terrain; or

(ix) a Contract under which a third party would be entitled to receive a license or have any other rights in Intellectual Property of the Company, Terrain or any of their Affiliates at the time of or immediately after the Effective Time,

(x) a Contract which would give rise to or otherwise result in proxy statement disclosure pursuant to Item 404 of Regulation S-K, or

(xi) a Contract, plan, program, or policy providing for severance, termination compensation, retention or stay pay, change in control payments, or transaction-based bonuses.

Terrain has delivered or made available to the Company accurate and complete copies of all Contracts to which Terrain is a party or by which it is bound of the type described in clauses (i)-(viii) of the immediately preceding sentence (any such Contract, a “Terrain Material Contract”), including all amendments thereto. Terrain has not nor, to Terrain’s Knowledge as of the date of this Agreement, has any other party to a Terrain Material Contract, breached, violated or defaulted under, or received notice that it breached, violated or defaulted under, any of the terms or conditions of any Terrain Material Contract in such manner as would permit any other party to cancel or terminate any such Terrain Material Contract, or would permit any other party to seek damages

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which would reasonably be expected to have a Terrain Material Adverse Effect. As to Terrain, as of the date of this Agreement, each Terrain Material Contract is valid, binding, enforceable and in full force and effect, subject to the Enforceability Exceptions. No Person is renegotiating, or has a right pursuant to the terms of any Terrain Material Contract to change, any material amount paid or payable to Terrain under any Terrain Material Contract or any other material term or provision of any Terrain Material Contract.

4.14 Compliance; Permits; Restrictions.

(a) Terrain is, and since January 1, 2021, has complied in all material respects with, is not in violation in any material respect of, and has not received any written notices of violation with respect to, applicable Law.

(b) Terrain is and, since January 1, 2021, has been in compliance in all material respects with all Health Care Laws applicable to Terrain. Since January 1, 2021, Terrain has not received any notice alleging any material violation with respect to any applicable Health Care Laws. There are no restrictions upon Terrain that have resulted from conduct in violation of any Health Care Law.

(c) Terrain is not currently and has not, since January 1, 2021, been: (i) a party to the terms of a corporate integrity agreement, monitoring agreement, deferred prosecution agreement, consent decree, settlement order, or similar agreement imposed by the Office of Inspector General of the Department of Health and Human Services or any other Governmental Authority; (ii) subject of any pending third party audit, other than routine customer audits, or investigation; (iii) named as a defendant in any action under the federal False Claims Act or any state equivalent; or (iv) the subject to any search warrant, subpoena, or civil investigative demand from any Governmental Authority with respect to any alleged violation of Law by Terrain, and no such enforcement, regulatory or administrative proceeding is pending or threatened.

(d) The Terrain product candidates are being, and, since January 1, 2021, have been, developed, tested, manufactured, labeled, distributed and stored, as applicable, in compliance with the Federal Food, Drug, and Cosmetic Act (21 U.S.C. § 301 et seq.) and Public Health Service Act (42 U.S.C. § 262 et seq.), as amended, and applicable regulations promulgated by the FDA and comparable applicable Laws outside of the United States, including those requirements relating to current good manufacturing practices, good laboratory practices and good clinical practices, as applicable, except in each case as has not had, and would not reasonably be expected to have, individually or in the aggregate, a Terrain Material Adverse Effect. To the extent the foregoing representation and warranty is made with respect to activities conducted by third parties, such representation and warranty is made solely to the Knowledge of Terrain.

(e) Since January 1, 2021, Terrain has not (i) made an untrue statement of a material fact or a fraudulent statement to the FDA, (ii) failed to disclose a material fact required to be disclosed to the FDA or (iii) failed to make a statement to the FDA, in each such case, related to the business of Terrain, that, at the time such statement was made or such disclosure or statement was not made, would reasonably be expected to provide a basis for the FDA to invoke its policy respecting “Fraud, Untrue Statements of Material Facts, Bribery, and Illegal Gratuities”, set forth in 56 Fed. Reg. 46191 (September 10, 1991) or for any Governmental Authority to invoke any similar policy, except for any act or statement or failure to make a statement that has not had, and would not reasonably be expected to have, individually or in the aggregate, a Terrain Material Adverse Effect. Since January 1, 2021, Terrain and any of its directors, officers, employees, or to the Knowledge of Terrain, its contractors, have not been excluded from participation in any Federal Health Care Program or, to the Knowledge of Terrain, engaged in any conduct for which Terrain or any of its directors, officers, employees, or contractors could be excluded from participating in any Federal Health Care Program.

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(f) Terrain and its Subsidiaries hold the respective licenses, certificates, clearances, approvals, permits or other authorizations or registrations set forth in Section 4.14(f) of the Disclosure Schedule (the “Terrain Scheduled Permits”). The Terrain Scheduled Permits represent all the licenses, certificates, clearances, approvals, permits or other authorizations or registrations required for Terrain to comply in all material respects with all Laws, including Health Care Laws, and all such Terrain Scheduled Permits are valid and in full force and effect. Terrain and its Subsidiaries have not received any written notice or other written communication, any oral notice or other oral communication, from any Governmental Authority regarding (i) any actual or possible violation of applicable Law or any Terrain Scheduled Permit or any failure to comply with any term or requirement of any Terrain Scheduled Permit or (ii) any actual or possible revocation, withdrawal, suspension, cancellation, termination or modification of any Terrain Scheduled Permit.

4.15 Legal Proceedings; Orders.

(a) Except as set forth in Section 4.15 of the Terrain Disclosure Schedule, there is no pending Legal Proceeding and, to the Knowledge of Terrain, no Person has threatened in writing to commence any Legal Proceeding: (i) that involves Terrain or any Terrain Associate (in his or her capacity as such) or any of the material assets owned or used by Terrain or (ii) that challenges, or that may have the effect of preventing, delaying, making illegal or otherwise interfering with, the Contemplated Transactions.

(b) There is no Order to which Terrain, or any of the material assets owned or used by Terrain is subject. To the Knowledge of Terrain, no officer or other Key Employee of Terrain is subject to any Order that prohibits such officer or employee from engaging in or continuing any conduct, activity or practice relating to the business of Terrain or to any material assets owned or used by Terrain.

4.16 Tax Matters.

(a) Each of Terrain and Merger Sub has timely filed (taking into account automatic extensions of time to file) all federal income Tax Returns and other material Tax Returns that they were required to file under applicable Law. All such Tax Returns were correct and complete in all material respects and have been prepared in material compliance with all applicable Law. Subject to exceptions as would not be material, no written claim has ever been made by a Governmental Authority in a jurisdiction where Terrain does not file Tax Returns that Terrain is subject to taxation by that jurisdiction.

(b) All material Taxes due and owing by Terrain (whether or not shown on any Tax Return) have been paid. Since the date of the Terrain Unaudited Interim Balance Sheet, Terrain has not incurred any material Liability for Taxes outside the Ordinary Course of Business or otherwise inconsistent with past custom and practice, other than in connection with the transactions contemplated by this Agreement.

(c) Each of Terrain and Merger Sub has withheld and paid all material Taxes required to have been withheld and paid in connection with any amounts paid or owing to any employee, independent contractor, creditor, stockholder, or other third party.

(d) There are no Encumbrances for material Taxes (other than Permitted Encumbrances) upon any of the assets of Terrain.

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(e) No deficiencies for material Taxes with respect to Terrain have been claimed, proposed or assessed by any Governmental Authority in writing. There are no pending (or, based on written notice, threatened) audits, assessments or other actions for or relating to any liability in respect of a material amount of Taxes of Terrain. Terrain has not waived any statute of limitations in respect of material Taxes or agreed to any extension of time with respect to a material Tax assessment or deficiency.

(f) Terrain is not a party to any Tax allocation, Tax sharing or similar agreement (including indemnity arrangements), other than customary Contracts entered into in the Ordinary Course of Business, including with vendors, customers, lenders, or landlords, the principal subject matter of which is not Taxes.

(g) Terrain has never been a (i) member of an affiliated group filing a consolidated U.S. federal income Tax Return (other than a group the common parent of which is Terrain) or (ii) party to any joint venture, partnership, or other arrangement that is treated as a partnership for U.S. federal income Tax purposes. Terrain does not have any Liability for the Taxes of any Person (other than Terrain and Merger Sub) under Treasury Regulations Section 1.1502-6 (or any similar provision of state, local, or foreign Law) or as a transferee or successor.

(h) Terrain has not distributed stock of another Person, or had its stock distributed by another Person, in a transaction that was purported or intended to be governed in whole or in part by Section 355 of the Code or Section 361 of the Code.

(i) Terrain has not entered into any transaction identified as a “listed transaction” for purposes of Treasury Regulations Sections 1.6011-4(b)(2) or ###-###-####-2(b)(2).

(j) Terrain does not have a permanent establishment (within the meaning of an applicable Tax treaty) or otherwise has an office or fixed place of business in a country other than the country in which it is organized.

(k) Terrain is not an “investment company” within the meaning of Section 368(a)(2)(F) of the Code.

(l) Terrain has not taken, or agreed to take, any action that would reasonably be expected to prevent the Merger from qualifying for the Intended Tax Treatment. To the Knowledge of Terrain, no facts or circumstances exist that would reasonably be expected to prevent the Merger from qualifying for the Intended Tax Treatment.

Notwithstanding anything herein to the contrary, this Section 4.16 and, to the extent it relates to Taxes, Section 4.17, contain the sole representations concerning Taxes of Terrain and its Subsidiaries.

4.17 Employee and Labor Matters; Benefit Plans.

(a) The employment of each of Terrain’s and any of its Subsidiaries employees is terminable by Terrain at will.

(b) Neither Terrain or any of its Subsidiaries is a party to, bound by, or has a duty to bargain under, any collective bargaining agreement or other Contract with a labor organization representing any of its employees, and there are no labor organizations representing or, to the Knowledge of Terrain, purporting to represent or seeking to represent any employees of Terrain or its Subsidiaries.

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(c) Section 4.17(c) of the Terrain Disclosure Schedule lists all material Terrain Employee Plans. True, complete and correct copies of the following documents, with respect to each Terrain Employee Plan, where applicable, have previously been made available to the Company: (i) all documents embodying or governing such Terrain Employee Plan (or for unwritten Terrain Employee Plans a written description of the material terms of such Terrain Employee Plan) and any funding medium for the Terrain Employee Plan; (ii) the most recent IRS determination or opinion letter; (iii) the most recently filed Form 5500; (iv) the most recent actuarial valuation report; (v) the most recent summary plan description (or other descriptions provided to employees) and all modifications thereto; (vi) the last three years of non-discrimination testing results; and (vii) all non-routine correspondence to and from any governmental agency.

(d) Each Terrain Employee Plan that is intended to be qualified under Section 401(a) of the Code has received a favorable determination or opinion letter with respect to such qualified status from the IRS. To the Knowledge of Terrain, nothing has occurred that would reasonably be expected to adversely affect the qualified status of any such Terrain Employee Plan or the exempt status of any related trust or require corrective action to the IRS or Employee Plan Compliance Resolution System to maintain such qualification.

(e) Each Terrain Employee Plan has been established, administered, maintained and operated in compliance, in all material respects, with its terms and all applicable Law, including the Code ERISA and the Affordable Care Act. No Legal Proceeding (other than those relating to routine claims for benefits) is pending or, to the Knowledge of Terrain, threatened with respect to any Terrain Employee Plan. All payments and/or contributions required to have been made with respect to all Terrain Employee Plans either have been made or have been accrued in accordance with the terms of the applicable Terrain Employee Plan and applicable Law. The Company Employee Plans satisfy in all material respects the minimum coverage, affordability and non-discrimination requirements under the Code. No Company Employee Plan is, or within the past six years has been, the subject of an application or filing under a government sponsored amnesty, voluntary compliance, or similar program, or been the subject of any self-correction under any such program.

(f) Neither Terrain nor any of its ERISA Affiliates has ever maintained, contributed to, or been required to contribute to (i) any employee benefit plan that is or was subject to Title IV or Section 302 of ERISA or Section 412 of the Code, (ii) a Multiemployer Plan, (iii) any funded welfare benefit plan within the meaning of Section 419 of the Code, (iv) any Multiple Employer Plan, or (v) any Multiple Employer Welfare Arrangement. Neither Terrain nor any of its ERISA Affiliates has ever incurred any liability under Title IV of ERISA that has not been paid in full.

(g) Except as set forth in Section 4.17(g) of the Terrain Disclosure Schedule, no Terrain Employee Plan provides for medical or other welfare benefits beyond termination of service or retirement, other than pursuant to (i) COBRA or an analogous state law requirement or (ii) continuation coverage through the end of the month in which such termination or retirement occurs. Neither Terrain nor any of its Subsidiaries sponsors or maintains any self-funded medical or long-term disability benefit plan.

(h) No Terrain Employee Plan is subject to any law of a foreign jurisdiction outside of the United States.

(i) No Terrain Options, Terrain RSUs, Terrain SARs or other equity-based awards issued or granted by Terrain are subject to the requirements of Code Section 409A. Each Terrain Employee Plan that constitutes in any part a “nonqualified deferred compensation plan” (as such term is defined under Section 409A(d)(1) of the Code and the guidance thereunder) (each, a “Terrain 409A Plan”) complies in all material respects, in both form and operation, with the requirements of Code Section 409A and the guidance thereunder. No payment to be made under any Terrain 409A Plan is or, when made in accordance with the terms of the Terrain 409A Plan, will be subject to the penalties of Code Section 409A(a)(1).

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(j) Terrain and each of its Subsidiaries is in compliance in all material respects with all applicable federal, state and local laws, rules and regulations respecting employment, employment practices, terms and conditions of employment, worker classification, Tax withholding, prohibited discrimination, equal employment, fair employment practices, meal and rest periods, work authorization and immigration status, employee safety and health, wages (including overtime wages), compensation, and hours of work, and in each case, with respect to the employees of Terrain and its Subsidiaries: (i) has withheld and reported all material amounts required by law or by agreement to be withheld and reported with respect to wages, salaries and other payments to employees, (ii) is not liable for any arrears of wages, severance pay or any Taxes or any penalty for failure to comply with any of the foregoing and (iii) is not liable for any material payment to any trust or other fund governed by or maintained by or on behalf of any Governmental Authority, with respect to unemployment compensation benefits, social security or other benefits or obligations for employees (other than routine payments to be made in the Ordinary Course of Business). There are no actions, suits, claims or administrative matters pending or, to the Knowledge of Terrain, threatened against Terrain or any of its Subsidiaries relating to any employee, employment agreement, Terrain Employee Plan (other than routine claims for benefits) or other labor or employment matter. To the Knowledge of Terrain, there are no pending or threatened claims or actions against Terrain, any of its Subsidiaries, any Terrain trustee or any trustee of any Subsidiary under any workers’ compensation policy or long-term disability policy. Terrain is not a party to a conciliation agreement, consent decree or other agreement or Order with any federal, state, or local agency or Governmental Authority with respect to employment practices.

(k) Neither Terrain nor any of its Subsidiaries has any material liability with respect to any misclassification since January 1, 2021: (i) any Person as an independent contractor rather than as an employee, (ii) any employee leased from another employer or (iii) any employee currently or formerly classified as exempt from overtime wages. Except as set forth in Section 4.17(k) of the Terrain Disclosure Schedule, Terrain has not taken any action which would constitute a “plant closing” or “mass layoff” within the meaning of the WARN Act or similar state or local law, issued any notification of a plant closing or mass layoff required by the WARN Act or similar state or local law, or incurred any liability or obligation under the WARN Act or any similar state or local law that remains unsatisfied.

(l) There has never been, nor has there been any threat of, any strike, slowdown, work stoppage, lockout, job action, union, organizing activity, question concerning representation or any similar activity or dispute, affecting Terrain or any of its Subsidiaries. No event has occurred within the past six months, and no condition or circumstance exists, that might directly or indirectly be likely to give rise to or provide a basis for the commencement of any such strike, slowdown, work stoppage, lockout, job action, union organizing activity, question concerning representation or any similar activity or dispute.

(m) Neither Terrain nor any of its Subsidiaries is not, nor has Terrain or any of its Subsidiaries been, engaged in any unfair labor practice within the meaning of the National Labor Relations Act. There is no Legal Proceeding, claim, labor dispute or grievance pending or, to the Knowledge of Terrain, threatened or reasonably anticipated relating to any employment contract, privacy right, labor dispute, wages and hours, leave of absence, plant closing notification, workers’ compensation policy, long-term disability policy, harassment, retaliation, immigration, employment statute or regulation, safety or discrimination matter involving any Terrain Associate, including charges of unfair labor practices or discrimination complaints.

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(n) There is no contract, agreement, plan or arrangement to which Terrain or any of its Subsidiaries is a party or by which it is bound to compensate any of its employees for excise Taxes paid pursuant to Section 4999 or Section 409A of the Code.

(o) Except as set forth in Section 4.17(o) of the Terrain Disclosure Schedule, neither Terrain nor any of its Subsidiaries is a party to any Contract that could, due to the Merger (either alone or in conjunction with any other event) (i) result in the payment of any “parachute payment” within the meaning of Section 280G of the Code or (ii) result in, or cause the accelerated vesting, payment, funding or delivery of, or increase the amount or value of, any payment or benefit to any current or former employee, officer, director or other service provider of Terrain or any of its Subsidiaries.

(p) Since January 1, 2021, Terrain and each of its Subsidiaries each have maintained policies (i) prohibiting employment discrimination on all grounds constituting unlawful discrimination, (ii) prohibiting sexual harassment and all other forms of discriminatory harassment, and (iii) providing complaint and investigation procedures with respect to (i) and (ii). Since January 1, 2021, any and all such policies have conformed with applicable legal requirements, including, as applicable, with respect to independent contractors. Since January 1, 2021, Terrain and each of its Subsidiaries has complied with any applicable legal requirements with respect to training concerning prevention of sexual harassment prevention and/or abusive conduct. Except as set forth on Section 4.17(p) of the Terrain Disclosure Schedule, to the Knowledge of Terrain, at no time during the last five years have any allegations been made within or outside Terrain or any of its Subsidiaries alleging conduct that, if confirmed, would constitute violations of any of the policies referenced in (i) and/or (ii). Except as set forth on Section 4.17(p) of the Terrain Disclosure Schedule, to the Knowledge of Terrain, at no time during the last five years has Terrain or any of its Subsidiaries received a complaint within the scope of (iii) or conducted an investigation of allegations of any alleged violation of (i) or (ii). Except as set forth on Section 4.17(p) of the Terrain Disclosure Schedule, to the Knowledge of Terrain, there are no facts that could reasonably be expected to give rise to a claim of sexual harassment or other discriminatory harassment against or involving Terrain or any of its Subsidiaries or employee, director or officer of Terrain or any of its Subsidiaries.

(q) Neither Terrain nor any of its Subsidiaries is a government contractor or subcontractor for any purposes of any law with respect to the terms and conditions of employment.

4.18 Environmental Matters. Since January 1, 2021, Terrain has complied with all applicable Environmental Laws, which compliance includes the possession by Terrain of all permits and other Governmental Authorizations required under applicable Environmental Laws and compliance with the terms and conditions thereof, except for any failure to be in compliance that, individually or in the aggregate, would not result in a Terrain Material Adverse Effect. Terrain has not received since January 1, 2021, any written notice or other communication (in writing or otherwise), whether from a Governmental Authority, citizens group, employee or otherwise, that alleges that Terrain is not in compliance with any Environmental Law, and, to the Knowledge of Terrain, there are no circumstances that may prevent or interfere with Terrain’s compliance with any Environmental Law in the future, except where such failure to comply would not reasonably be expected to have a Terrain Material Adverse Effect. To the Knowledge of Terrain: (i) no current or prior owner of any property leased or controlled by Terrain has received since January 1, 2021, any written notice or other communication relating to property owned or leased at any time by Terrain, whether from a Governmental Authority, citizens group, employee or otherwise, that alleges that such current or prior owner or Terrain is not in compliance with or violated any Environmental Law relating to such property and (ii) Terrain has no material liability under any Environmental Law.

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4.19 Insurance. Terrain has made available to the Company accurate and complete copies of all material insurance policies and all material self-insurance programs and arrangements relating to the business, assets, liabilities and operations of Terrain and Merger Sub. Each of such insurance policies is in full force and effect and Terrain and Merger Sub are in compliance in all material respects with the terms thereof. Other than customary end of policy notifications from insurance carriers, since January 1, 2021, Terrain has not received any notice or other communication regarding any actual or possible: (i) cancellation or invalidation of any insurance policy or (ii) refusal or denial of any coverage, reservation of rights or rejection of any material claim under any insurance policy. Each of Terrain and Merger Sub has provided timely written notice to the appropriate insurance carrier(s) of each Legal Proceeding pending against Terrain for which Terrain has insurance coverage, and no such carrier has issued a denial of coverage or a reservation of rights with respect to any such Legal Proceeding, or informed Terrain of its intent to do so.

4.20 Transactions with Affiliates. Except as set forth in the Terrain SEC Documents filed prior to the date of this Agreement, since the date of Terrain’s last proxy statement filed in 2023 with the SEC, no event has occurred that would be required to be reported by Terrain pursuant to Item 404 of Regulation S-K promulgated by the SEC. Section 4.20 of the Terrain Disclosure Schedule identifies each Person who is (or who may be deemed to be) an Affiliate of Terrain as of the date of this Agreement.

4.21 No Financial Advisors. Other than SVB Securities LLC, no broker, finder or investment banker is entitled to any brokerage fee, finder’s fee, opinion fee, success fee, transaction fee or other fee or commission in connection with the Contemplated Transactions based upon arrangements made by or on behalf of Terrain. Terrain has provided to the Company accurate and complete copies of all agreements under which any such fees, commissions or other amounts have been paid or may become payable and all indemnification and other agreements related to the engagement of SVB Securities LLC.

4.22 Valid Issuance. The Terrain Common Stock to be issued in the Merger will, when issued in accordance with the provisions of this Agreement, be validly issued, fully paid and nonassessable.

4.23 Privacy and Data Security. Terrain and its Subsidiaries have complied in all material respects with all applicable Privacy Laws and the applicable terms of any Terrain Contracts relating to privacy, security, collection or use of Personal Data of any individuals (including clinical trial participants, patients, patient family members, caregivers or advocates, physicians and other health care professionals, clinical trial investigators, researchers, pharmacists) that interact with Terrain or any of its Subsidiaries in connection with the operation of Terrain’s and its Subsidiaries’ business. To the Knowledge of Terrain, Terrain has implemented and maintains reasonable Privacy Policies and has complied with its Privacy Policies, except for such noncompliance as has not to the Knowledge of Terrain had, and would not reasonably be expected to have, individually or in the aggregate, a Terrain Material Adverse Effect. To the Knowledge of Terrain, as of the date hereof, no claims have been asserted or threatened against Terrain by any Person alleging a violation of Privacy Laws, Privacy Policies and/or the applicable terms of any Terrain Contracts relating to privacy, security, collection or use of Personal Data of any individuals. To the Knowledge of Terrain, there have been no data security incidents, Personal Data breaches or other adverse events or incidents related to Personal Data of any individuals (including clinical trial participants) or Terrain data in the custody or control of Terrain or any service provider acting on behalf of Terrain, in each case where such incident, breach or event would result in a notification obligation to any Person under applicable law or pursuant to the terms of any Terrain Contract.

4.24 Opinion of Financial Advisor. The Terrain Board has received an opinion of SVB Securities LLC to the effect that, as of June 22, 2023 and subject to the assumptions, qualifications, limitations and other matters set forth therein, the Exchange Ratio is fair, from a financial point of view, to Terrain. It is agreed and understood that such opinion is for the benefit of the Terrain Board and may not be relied upon by the Company. Terrain will make available to the Company signed copies of such opinion as soon as possible following the date of this Agreement. Such opinion has not been withdrawn, revoked or otherwise modified.

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4.25 No Other Representations or Warranties. Terrain hereby acknowledges and agrees that, except for the representations and warranties contained in this Agreement, neither the Company nor any of its Subsidiaries nor any other person on behalf of the Company or its Subsidiaries makes any express or implied representation or warranty with respect to the Company or its Subsidiaries or with respect to any other information provided to Terrain, Merger Sub or stockholders or any of their respective Affiliates in connection with the transactions contemplated hereby, and (subject to the express representations and warranties of the Company set forth in Section 3 (in each case as qualified and limited by the Company Disclosure Schedule)) none of Terrain, Merger Sub or any of their respective Representatives or stockholders, has relied on any such information (including the accuracy or completeness thereof).

Section 5. Certain Covenants of the Parties.

5.1 Operation of Terrain’s Business.

(a) Except (i) as expressly contemplated or permitted by this Agreement, (ii) as set forth on Section 5.1(a) of the Terrain Disclosure Schedule, (iii) as required by applicable Law, or (iv) unless the Company shall otherwise consent in writing (which consent shall not be unreasonably withheld, delayed or conditioned), during the period commencing on the date of this Agreement and continuing until the earlier to occur of the termination of this Agreement pursuant to Section 10 and the Effective Time (the “Pre-Closing Period”), Terrain shall, subject to Section 5.1(b), use commercially reasonable efforts to conduct its business and operations in the Ordinary Course of Business and in material compliance with all applicable Law and the requirements of all Contracts that constitute Terrain Material Contracts.

(b) Except (i) as expressly contemplated or permitted by this Agreement, (ii) as set forth in Section 5.1(b) of the Terrain Disclosure Schedule, (iii) as required by applicable Law, or (iv) with the prior written consent of the Company (which consent shall not be unreasonably withheld, delayed or conditioned), at all times during the Pre-Closing Period, Terrain shall not:

(i) other than the Terrain Closing Cash Dividend, declare, accrue, set aside or pay any dividend or make any other distribution in respect of any shares of its capital stock or repurchase, redeem or otherwise reacquire any shares of its capital stock or other securities (except for shares of Terrain Common Stock from terminated employees, directors or consultants of Terrain);

(ii) sell, issue, grant, pledge or otherwise dispose of or encumber or authorize the issuance of: (A) any capital stock or other security (except for Terrain Common Stock issued upon the valid exercise or settlement of outstanding Terrain Options, Terrain SARs or Terrain RSUs as applicable, and shares of Terrain Common Stock issuable under the Terrain ESPP), (B) any option, warrant or right to acquire any capital stock or any other security or (C) any instrument convertible into or exchangeable for any capital stock or other security;

(iii) form any Subsidiary or acquire any equity interest or other interest in any other Entity or enter into a joint venture with any other Entity;

(iv) except as required to give effect to anything in contemplation of the Closing, amend any of its Organizational Documents, or effect or be a party to any merger, consolidation, share exchange, business combination, recapitalization, reclassification of shares, stock split, reverse stock split or similar transaction except, for the avoidance of doubt, the Contemplated Transactions;

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(v) (A) lend money to any Person, (B) incur or guarantee any indebtedness for borrowed money, (C) guarantee any debt securities of others or (D) make any capital expenditure or commitment;

(vi) other than in the Ordinary Course of Business or as required under the terms of any Terrain Employee Plan or applicable Law: (A) adopt, establish or enter into any Terrain Employee Plan, (B) cause or permit any Terrain Employee Plan to be amended other than as required by law or in order to make amendments for the purposes of Section 409A of the Code, (C) pay any material bonus or make any profit-sharing or similar payment to (except with respect to obligations pursuant to any Terrain Employee Plan), or increase the amount of the wages, salary, commissions, fringe benefits or other compensation or remuneration payable to, any of its employees, directors or consultants or (D) increase the severance or change of control benefits offered to any Terrain Associate;

(vii) hire any employee.

(viii) enter into any material transaction;

(ix) acquire any material asset or sell, lease or otherwise irrevocably dispose of any of its assets or properties, or grant any Encumbrance with respect to such assets or properties;

(x) make, change or revoke any material Tax election, file any amendment making any material change to any Tax Return or adopt or change any material accounting method in respect of Taxes, enter into any Tax closing agreement, settle any income or other material Tax claim or assessment, submit any voluntary disclosure application, enter into any Tax allocation, Tax sharing or similar agreement (including indemnity arrangements), other than customary Contracts entered into in the Ordinary Course of Business, including with vendors, customers, lenders, or landlords, the principal subject matter of which is not Taxes, or consent to any extension or waiver of the limitation period applicable to or relating to any Tax claim or assessment, other than any such extension or waiver that is obtained in the Ordinary Course of Business

(xi) enter into, amend or terminate any Terrain Material Contract;

(xii) terminate or modify in any material respect, or fail to exercise renewal rights with respect to, any material insurance policy;

(xiii) sell, assign, transfer, license, sublicense or otherwise dispose of any material Company IP Rights (other than pursuant to non-exclusive licenses in the Ordinary Course of Business);

(xiv) initiate or settle any Legal Proceeding or other claim or dispute involving or against Terrain or any Subsidiary of Terrain in excess of $50,000 in the aggregate; or

(xv) agree, resolve or commit to do any of the foregoing.

Nothing contained in this Agreement shall give the Company, directly or indirectly, the right to control or direct the operations of Terrain prior to the Effective Time. Prior to the Effective Time, Terrain shall exercise, consistent with the terms and conditions of this Agreement, complete unilateral control and supervision over its business operations.

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(c) Notwithstanding any provision herein to the contrary (including the foregoing provisions of this Section 5.1), Terrain may engage in the sale, license, transfer, disposition, divestiture or other monetization transaction (i.e., a royalty transaction) and/or winding down of the Terrain Legacy Business and/or the sale, license, transfer, disposition, divestiture or other monetization transaction (i.e., a royalty transaction) or other disposition of any Terrain Legacy Assets (each, an “Terrain Legacy Transaction”); provided, however, that to the extent any Terrain Legacy Transaction results in obligations of Terrain that will extend beyond Closing, such terms shall be reasonably acceptable to Company.

5.2 Operation of the Company’s Business.

(a) Except (i) as expressly contemplated or permitted by this Agreement, (ii) as set forth in Section 5.2(a) of the Company Disclosure Schedule, (iii) as required by applicable Law, or (iv) unless Terrain shall otherwise consent in writing (which consent shall not be unreasonably withheld, delayed or conditioned), during the Pre-Closing Period the Company shall, and shall cause its Subsidiaries to, subject to Section 5.2(b), use commercially reasonable efforts to conduct its business and operations in the Ordinary Course of Business and in material compliance with all applicable Law and the requirements of all Contracts that constitute Company Material Contracts.

(b) Except (i) as expressly contemplated or permitted by this Agreement (including in connection with the Pre-Closing Financing), (ii) as set forth in Section 5.2(b) of the Company Disclosure Schedule, (iii) as required by applicable Law, or (iv) with the prior written consent of Terrain (which consent shall not be unreasonably withheld, delayed or conditioned), at all times during the Pre-Closing Period, the Company shall not, nor shall it cause or permit any of its Subsidiaries to, do any of the following:

(i) declare, accrue, set aside or pay any dividend or make any other distribution in respect of any shares of capital stock; or repurchase, redeem or otherwise reacquire any shares of Company Capital Stock or other securities (except for shares of Company Common Stock from terminated employees, directors or consultants of the Company);

(ii) except as required to give effect to anything in contemplation of the Closing, amend any of its or its Subsidiaries’ Organizational Documents, or effect or be a party to any merger, consolidation, share exchange, business combination, recapitalization, reclassification of shares, stock split, reverse stock split or similar transaction except, for the avoidance of doubt, the Contemplated Transactions;

(iii) sell, issue, grant, pledge or otherwise dispose of or encumber or authorize the issuance of: (A) any capital stock or other security of the Company or any of its Subsidiaries (except for shares of outstanding Company Common Stock issued upon the valid exercise of Company Options), (B) any option, warrant or right to acquire any capital stock or any other security or (C) any instrument convertible into or exchangeable for any capital stock or other security of the Company or any of its Subsidiaries;

(iv) form any Subsidiary or acquire any equity interest or other interest in any other Entity or enter into a joint venture with any other Entity;

(v) (A) lend money to any Person, (B) incur or guarantee any indebtedness for borrowed money, other than in the Ordinary Course of Business, (C) guarantee any debt securities of others or (D) make any capital expenditure or commitment in excess of $250,000;

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(vi) other than in the Ordinary Course of Business or as required under the terms of any Company Employee Plan or applicable law: (A) adopt, establish or enter into any Company Employee Plan, (B) cause or permit any Company Employee Plan to be amended other than as required by law or in order to make amendments for the purposes of Section 409A of the Code, (C) pay any material bonus or make any profit-sharing or similar payment to (except with respect to obligations pursuant to any Company Employee Plan), or, other than to an employee newly hired in the Ordinary Course of Business and broad-based increases in base compensation that are in the Ordinary Course of Business, increase the amount of the wages, salary, commissions, fringe benefits or other compensation or remuneration payable to, any of its directors, officers or employees or (D) increase the severance or change of control benefits offered to any current or new Company Associate;

(vii) enter into any material transaction outside the Ordinary Course of Business;

(viii) acquire any material asset or sell, lease or otherwise irrevocably dispose of any of its assets or properties, or grant any Encumbrance with respect to such assets or properties, except in the Ordinary Course of Business;

(ix) sell, assign, transfer, license, sublicense or otherwise dispose of any material Company IP Rights (other than pursuant to non-exclusive licenses in the Ordinary Course of Business);

(x) make, change or revoke any material Tax election, file any amendment making any material change to any Tax Return or adopt or change any material accounting method in respect of Taxes, enter into any Tax closing agreement, settle any income or other material Tax claim or assessment, submit any voluntary disclosure application, enter into any Tax allocation, Tax sharing or similar agreement (including indemnity agreements), other than customary Contracts entered into in the Ordinary Course of Business, including with vendors, customers, lenders, or landlords, the principal subject matter of which is not Taxes, or consent to any extension or waiver of the limitation period applicable to or relating to any Tax claim or assessment, other than any such extension or waiver that is obtained in the Ordinary Course of Business;

(xi) other than in the Ordinary Course of Business, enter into, amend or terminate any Company Material Contract;

(xii) terminate or modify in any material respect, or fail to exercise renewal rights with respect to, any material insurance policy;

(xiii) initiate or settle any Legal Proceeding or other claim or dispute involving or against the Company in excess of $50,000 in the aggregate; or

(xiv) agree, resolve or commit to do any of the foregoing.

Nothing contained in this Agreement shall give Terrain, directly or indirectly, the right to control or direct the operations of the Company prior to the Effective Time. Prior to the Effective Time, the Company shall exercise, consistent with the terms and conditions of this Agreement, complete unilateral control and supervision over its business operations.

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5.3 Access and Investigation.

(a) Subject to the terms of the Confidentiality Agreement, which the Parties agree will continue in full force following the date of this Agreement, during the Pre-Closing Period, upon reasonable notice, Terrain, on the one hand, and the Company, on the other hand, shall and shall use commercially reasonable efforts to cause such Party’s Representatives to: (a) provide the other Party and such other Party’s Representatives with reasonable access during normal business hours to such Party’s Representatives, personnel and assets and to all existing books, records, Tax Returns, work papers and other documents and information relating to such Party and its Subsidiaries, (b) provide the other Party and such other Party’s Representatives with such copies of the existing books, records, Tax Returns, work papers, product data, and other documents and information relating to such Party and its Subsidiaries, and with such additional financial, operating and other data and information regarding such Party and its Subsidiaries as the other Party may reasonably request and (c) permit the other Party’s officers and other employees to meet, upon reasonable notice and during normal business hours, with the chief financial officer and other officers and managers of such Party responsible for such Party’s financial statements and the internal controls of such Party to discuss such matters as the other Party may deem necessary. Any investigation conducted by either Terrain or the Company pursuant to this Section 5.3 shall be conducted in such manner as not to interfere unreasonably with the conduct of the business of the other Party.

(b) Notwithstanding anything herein to the contrary in this Section 5.3, no access or examination contemplated by this Section 5.3 shall be permitted to the extent that it would require any Party or its Subsidiaries to waive the attorney-client privilege or attorney work product privilege, or violate any applicable Law; provided, that such Party or its Subsidiary (i) shall be entitled to withhold only such information that may not be provided without causing such violation or waiver, (ii) shall provide to the other Party all related information that may be provided without causing such violation or waiver (including, to the extent permitted, redacted versions of any such information) and (iii) shall enter into such effective and appropriate joint-defense agreements or other protective arrangements as may be reasonably requested by the other Party in order that all such information may be provided to the other Party without causing such violation or waiver.

5.4 No Solicitation.

(a) Each of Terrain and the Company agrees that, during the Pre-Closing Period, neither it nor any of its Subsidiaries shall, nor shall it or any of its Subsidiaries authorize any of its Representatives to, directly or indirectly: (i) solicit, initiate or knowingly encourage, induce or facilitate the communication, making, submission or announcement of any Acquisition Proposal or Acquisition Inquiry or take any action that could reasonably be expected to lead to an Acquisition Proposal or Acquisition Inquiry, (ii) furnish any non-public information regarding such Party to any Person in connection with or in response to an Acquisition Proposal or Acquisition Inquiry, (iii) engage in discussions or negotiations with any Person with respect to any Acquisition Proposal or Acquisition Inquiry, (iv) approve, endorse or recommend any Acquisition Proposal (subject to Section 6.2 and Section 6.3), (v) execute or enter into any letter of intent or any Contract contemplating or otherwise relating to any Acquisition Transaction or (vi) publicly propose to do any of the foregoing; provided, however, that, notwithstanding anything contained in this Section 5.4 and subject to compliance with this Section 5.4, prior to the approval of this Agreement by a Party’s stockholders (i.e., the Required Company Stockholder Vote, in the case of the Company and its Subsidiaries, or the Required Terrain Stockholder Vote, in the case of Terrain), such Party may furnish non-public information regarding such Party and its Subsidiaries to, and enter into discussions or negotiations with, any Person in response to a bona fide written Acquisition Proposal by such Person which such Party’s board of directors determines in good faith, after consultation with such Party’s financial advisors and outside legal counsel, constitutes, or is reasonably likely to result in, a Superior Offer (and is not withdrawn) if: (A) neither such Party nor any Representative of such Party shall have breached this Section 5.4 in any material respect, (B) the board of directors of such Party concludes in good faith based on the advice of outside legal counsel that the failure to take such action

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would reasonably be expected to be inconsistent with the board of directors’ fiduciary duties under applicable Law, (C) prior to or concurrently with initially furnishing any such nonpublic information to, or entering into discussions with, such Person, such Party gives the other Party written notice of the identity of such Person and of such Party’s intention to furnish nonpublic information to, or enter into discussions with, such Person, (D) such Party receives from such Person an executed Acceptable Confidentiality Agreement and (E) prior to or concurrently with furnishing any such nonpublic information to such Person, such Party furnishes such nonpublic information to the other Party (to the extent such information has not been previously furnished by such Party to the other Party). Without limiting the generality of the foregoing, each Party acknowledges and agrees that, in the event any Representative of such Party takes any action that, if taken by such Party, would constitute a breach of this Section 5.4 by such Party, the taking of such action by such Representative shall be deemed to constitute a breach of this Section 5.4 by such Party for purposes of this Agreement.

(b) If any Party or any Representative of such Party receives an Acquisition Proposal or Acquisition Inquiry at any time during the Pre-Closing Period, then such Party shall promptly (and in no event later than one (1) Business Day after such Party becomes aware of such Acquisition Proposal or Acquisition Inquiry) advise the other Party orally and in writing of such Acquisition Proposal or Acquisition Inquiry (including the identity of the Person making or submitting such Acquisition Proposal or Acquisition Inquiry, and the terms thereof). Such Party shall keep the other Party reasonably informed with respect to the status and terms of any such Acquisition Proposal or Acquisition Inquiry and any material modification or material proposed modification thereto.

(c) Each Party shall immediately cease and cause to be terminated any existing discussions, negotiations and communications with any Person that relate to any Acquisition Proposal or Acquisition Inquiry as of the date of this Agreement and shall immediately (and in no event later than three Business Days) request the destruction or return of any nonpublic information provided to such Person and terminate all physical and electronic data room access previously granted to such Persons (other than the Company and its Representatives). Terrain shall not modify, amend or terminate, or waive, release or assign any provisions of, any confidentiality or standstill agreement (or any similar agreement) to which it is a party relating to any such Acquisition Proposal or Acquisition Inquiry and shall enforce, to the fullest extent permitted under applicable Laws, the provisions of any such agreement; provided, that the Terrain shall be permitted to waive any standstill agreement (or similar agreement) in order to permit a Person to make an Acquisition Proposal to the Terrain Board in a confidential manner, if and only if the Terrain Board shall have determined in good faith, after consultation with its outside legal counsel, that the failure to so waive would reasonably be expected to be inconsistent with its fiduciary duties under applicable Law.

5.5 Notification of Certain Matters. During the Pre-Closing Period, each of the Company, on the one hand, and Terrain, on the other hand, shall promptly notify the other (and, if in writing, furnish copies of) if any of the following occurs: (a) any notice or other communication is received from any Person alleging that the Consent of such Person is or may be required in connection with any of the Contemplated Transactions, (b) any Legal Proceeding against or involving or otherwise affecting such Party or its Subsidiaries is commenced, or, to the Knowledge of such Party, threatened against such Party or, to the Knowledge of such Party, any director, officer or Key Employee of such Party, (c) such Party becomes aware of any inaccuracy in any representation or warranty made by such Party in this Agreement or (d) the failure of such Party to comply with any covenant or obligation of such Party; in each case of the foregoing clauses (c) and (d) that could reasonably be expected to make the timely satisfaction of any of the conditions set forth in Sections 7, 8 and 9, as applicable, impossible or materially less likely. No such notice shall be deemed to supplement or amend the Company Disclosure Schedule or the Terrain Disclosure Schedule for the purpose of (x) determining the accuracy of any of the representations and warranties made by the Company in this Agreement or (y) determining whether any condition set forth in Section 7, 8 or 9 has been satisfied. Any failure by either Party to provide notice pursuant to this Section 5.5 shall not be deemed to be a breach for purposes of Section 8.2 or 9.2, as applicable, unless such failure to provide such notice was knowing and intentional.

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Section 6. Additional Agreements of the Parties.

6.1 Registration Statement; Proxy Statement.

(a) As promptly as practicable after the date of this Agreement, (i) Terrain shall prepare and file with the SEC (but no later than seventeen (17) Business Days following the date hereof) a proxy statement relating to the Terrain Stockholder Meeting to be held in connection with the Contemplated Transactions (together with any amendments thereof or supplements thereto, the “Proxy Statement”) and (ii) Terrain, in cooperation with the Company, shall prepare and file with the SEC a registration statement on Form S-4 (the “Form S-4”), in which the Proxy Statement shall be included as a part (the Proxy Statement and the Form S-4, collectively, the “Registration Statement”), in connection with the registration under the Securities Act of the shares of Terrain Common Stock to be issued by virtue of the Merger in exchange for Company Common Stock (including any shares of Company Common Stock issued pursuant to the Pre-Closing Financing). Each of Terrain and the Company shall use their commercially reasonable efforts to cause the Registration Statement to be declared effective as promptly as practicable, and shall take all or any action required under any applicable federal, state, securities and other Laws in connection with the issuance of shares of Terrain Common Stock pursuant to the Merger. Each of the Parties shall furnish all information concerning itself and their Affiliates, as applicable, to the other Parties as the other Parties may reasonably request in connection with such actions and the preparation of the Registration Statement and Proxy Statement. Terrain shall provide the Company with copies of any written comments, and shall inform the Company of any oral comments, that Terrain receives from the SEC or its staff with respect to the Registration Statement promptly after the receipt of such comments and shall give the Company a reasonable opportunity to review and comment on any proposed written or oral responses to such comments prior to responding to the SEC or its staff or and any amendment to the Registration Statement in response thereto prior to filing such amendment. If Terrain or the Company becomes aware that any information contained in the Registration Statement shall have become false or misleading in any material respect or that the Registration Statement is required to be amended in order to comply with applicable Law, then (i) such Party shall promptly inform the other Parties and (ii) Terrain, on the one hand, and the Company, on the other hand, shall cooperate and mutually agree upon (such agreement not to be unreasonably withheld or delayed) an amendment or supplement to the Registration Statement.

(b) Terrain covenants and agrees that the Registration Statement (and the letter to stockholders, notice of meeting and form of proxy included therewith) will not contain any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary in order to make the statements made therein, in light of the circumstances under which they were made, not misleading. The Company covenants and agrees that the information supplied by or on behalf of the Company or its Subsidiaries to Terrain for inclusion in the Registration Statement (including the Company Financials) will not contain any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary in order to make such information, in light of the circumstances under which they were made, not misleading. Notwithstanding the foregoing, Terrain makes no covenant, representation or warranty with respect to statements made in the Registration Statement (and the letter to stockholders, notice of meeting and form of proxy included therewith), if any, based on information provided by the Company or its Subsidiaries or any of their Representatives for inclusion therein.

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(c) Each of the Parties shall use commercially reasonable efforts to cause the Proxy Statement to be mailed to Terrain’s stockholders as promptly as practicable after the Registration Statement is declared effective under the Securities Act. If Terrain, Merger Sub or the Company become aware of any event or information that, pursuant to the Securities Act or the Exchange Act, should be disclosed in an amendment or supplement to the Registration Statement or Proxy Statement, as the case may be, then such Party, as the case may be, shall promptly inform the other Parties thereof and shall cooperate with such other Parties in filing such amendment or supplement with the SEC and, if appropriate, in mailing such amendment or supplement to Terrain stockholders.

(d) The Company shall reasonably cooperate with Terrain and provide, and cause its Representatives to provide, Terrain and its Representatives, with all true, correct and complete information regarding the Company or its Subsidiaries that is required by Law to be included in the Registration Statement or reasonably requested by Terrain to be included in the Registration Statement.

(e) As promptly as reasonably practicable following the date of this Agreement (i) the Company will furnish to Terrain audited financial statements for each of its fiscal years required to be included in the Registration Statement (the “Company Audited Financial Statements”) and (ii) the Company will furnish to Terrain unaudited interim financial statements for each interim period completed prior to Closing that would be required to be included in the Registration Statement or any periodic report due prior to the Closing if the Company were subject to the periodic reporting requirements under the Securities Act or the Exchange Act (the “Company Interim Financial Statements”). Each of the Company Audited Financial Statements and the Company Interim Financial Statements will be suitable for inclusion in the Registration Statement and prepared in accordance with GAAP as applied on a consistent basis during the periods involved (except in each case as described in the notes thereto) and on that basis will present fairly, in all material respects, the financial position and the results of operations, changes in stockholders’ equity, and cash flows of the Company as of the dates of and for the periods referred to in the Company Audited Financial Statements or the Company Interim Financial Statements, as the case may be.

6.2 Company Stockholder Written Consent.

(a) Promptly after the Registration Statement has been declared effective under the Securities Act, and in any event no later than five (5) Business Days thereafter, the Company shall obtain the approval by written consent from Company stockholders sufficient for the Required Company Stockholder Vote in lieu of a meeting pursuant to Section 228 of the DGCL, for purposes of (i) adopting and approving this Agreement and the Contemplated Transactions, (ii) acknowledging that the approval given thereby is irrevocable and that such stockholder is aware of its rights to demand appraisal for its shares pursuant to Section 262 of the DGCL, a copy of which will be attached thereto, and that such stockholder has received and read a copy of Section 262 of the DGCL and (iii) acknowledging that by its approval of the Merger it is not entitled to appraisal rights with respect to its shares in connection with the Merger and thereby waives any rights to receive payment of the fair value of its capital stock under the DGCL. Under no circumstances shall the Company assert that any other approval or consent is necessary by its stockholders to approve this Agreement and the Contemplated Transactions.

(b) Reasonably promptly following receipt of the Required Company Stockholder Vote, the Company shall prepare and mail a notice (the “Stockholder Notice”) to every stockholder of the Company that did not execute the Company Stockholder Written Consent. The Stockholder Notice shall (i) be a statement to the effect that the Company Board determined that the Merger is advisable in accordance with Section 251(b) of the DGCL and in the best interests of the stockholders of the Company and approved and adopted this Agreement, the Merger and the other Contemplated Transactions, (ii) provide the stockholders of the Company to whom it is sent with notice of the actions taken in the Company Stockholder Written Consent, including the adoption and approval of this Agreement, the Merger and the other Contemplated Transactions in accordance with Section 228(e) of the DGCL and

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the certificate of incorporation and bylaws of the Company and (iii) include a description of the appraisal rights of the Company’s stockholders available under the DGCL, along with such other information as is required thereunder and pursuant to applicable Law. All materials (including any amendments thereto) submitted to the stockholders of the Company in accordance with this Section 6.2(b) shall be subject to Terrain’s advance review and reasonable approval.

(c) The Company agrees that, subject to Section 6.2(d): (i) the Company Board shall recommend that the Company’s stockholders vote to adopt and approve this Agreement and the Contemplated Transactions and shall use commercially reasonable efforts to solicit such approval within the time set forth in Section 6.2(a) (the recommendation of the Company Board that the Company’s stockholders adopt and approve this Agreement being referred to as the “Company Board Recommendation”) and (ii) the Company Board Recommendation shall not be withheld, amended, withdrawn or modified (and the Company Board shall not publicly propose to withhold, amend, withdraw or modify the Company Board Recommendation) in a manner adverse to Terrain, and no resolution by the Company Board or any committee thereof to withhold, amend, withdraw or modify the Company Board Recommendation in a manner adverse to Terrain or to adopt, approve or recommend (or publicly propose to adopt, approve or recommend) any Acquisition Proposal shall be adopted or proposed.

(d) Notwithstanding anything to the contrary contained in Section 6.2(c), and subject to compliance with Section 5.4 and Section 6.2, if at any time prior to approval and adoption of this Agreement by the Required Company Stockholder Vote, (i) the Company receives a bona fide written Acquisition Proposal (which Acquisition Proposal did not arise out of a breach of Section 5.4) from any Person that has not been withdrawn and after consultation with outside legal counsel and its financial advisor, the Company Board shall have determined, in good faith, that such Acquisition Proposal is a Superior Offer or (ii) as a result of a Company Intervening Event, the Company Board may withhold, amend, withdraw or modify the Company Board Recommendation (or publicly propose to withhold, amend, withdraw or modify the Company Board Recommendation) in a manner adverse to Terrain (collectively, a “Company Board Adverse Recommendation Change”) if, but only if,

(i) in the case of a Superior Offer, following the receipt of and on account of such Superior Offer, (i) the Company Board determines in good faith, based on the advice of its outside legal counsel that the failure to withhold, amend, withdraw or modify the Company Board Recommendation would reasonably be expected to be inconsistent with its fiduciary duties under applicable Law (after taking into account, if applicable, such alterations of the terms and conditions of this Agreement agreed to by Terrain) and (ii) the Company has, and has caused its financial advisors and outside legal counsel to, during the Notice Period (as defined below), negotiate with Terrain in good faith to make such adjustments to the terms and conditions of this Agreement so that such Acquisition Proposal ceases to constitute a Superior Offer; provided that (1) Terrain receives written notice from the Company confirming that the Company Board has determined to change its recommendation at least four (4) Business Days in advance of the Company Board Adverse Recommendation Change (the “Notice Period”), which notice shall include a description in reasonable detail of the reasons for such Company Board Adverse Recommendation Change, and written copies of any relevant proposed transaction agreements with any party making a potential Superior Offer, and a summary of material terms and conditions of the Acquisition Proposal that are not in writing; (2) during any Notice Period, Terrain shall be entitled to deliver to the Company one or more counterproposals to such Acquisition Proposal and the Company will, and cause its Representatives to be reasonably available to, negotiate with Terrain in good faith (to the extent Terrain desires to negotiate) to make such adjustments in the terms and conditions of this Agreement so that the applicable Acquisition Proposal ceases to constitute a Superior Offer; and (3) in the event of any amendment to any potential Superior Offer (including any revision in the amount, form or mix of consideration the Company’s stockholders

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would receive as a result of such potential Superior Offer), the Company shall be required to provide Terrain with notice of such amendment, and the Notice Period shall be extended, if applicable, to ensure that at least three (3) Business Days remain in the Notice Period following such notification during which the parties shall comply again with the requirements of this Section 6.2(d)(i) and the Company Board shall not make a Company Board Adverse Recommendation Change prior to the end of such Notice Period as so extended (it being understood that there may be multiple extensions).

(ii) in the case of an Company Intervening Event, in response to such Company Intervening Event, the Company Board determines in good faith, based on the advice of its outside legal counsel, that the failure to withhold, amend, withdraw or modify the Company Board Recommendation would reasonably be expected to be inconsistent with its fiduciary duties under applicable Law (after taking into account, if applicable, such alterations of the terms and conditions of this Agreement agreed to by Terrain); provided that (1) Terrain receives written notice from the Company confirming that the Company Board has determined to change its recommendation during the Notice Period, which notice shall include a description in reasonable detail of the reasons for such Company Board Adverse Recommendation Change and a description of the Company Intervening Event; (2) during any Notice Period, Terrain shall be entitled to deliver to the Company one or more proposals with respect to the revisions of the terms or conditions of this Agreement and the Company will, and cause its Representatives to be reasonably available to, negotiate with Terrain in good faith (to the extent Terrain desires to negotiate) to make such adjustments in the terms and conditions of this Agreement and (3) in the event of any material changes to the facts and circumstances of the Company Intervening Event, the Company shall be required to provide Terrain with notice of such material changes, and the Notice Period shall be extended, if applicable, to ensure that at least three (3) Business Days remain in the Notice Period following such notification during which the parties shall comply again with the requirements of this Section 6.2(d)(ii) and the Company Board shall not make a Company Board Adverse Recommendation Change prior to the end of such Notice Period as so extended (it being understood that there may be multiple extensions).

(e) The Company’s obligation to solicit the consent of its stockholders to sign the Company Stockholder Written Consent in accordance with Section 6.2(a) shall not be limited or otherwise affected by the commencement, disclosure, announcement or submission of any Superior Offer or other Acquisition Proposal, or by any Company Board Adverse Recommendation Change.

6.3 Terrain Stockholder Meeting; No Change of Recommendation.

(a) Terrain shall take all action necessary under applicable Law to call, give notice of and hold a meeting of the holders of Terrain Common Stock to consider and vote to approve:

(i) the issuance of Terrain Common Stock that represent (or are convertible into) more than twenty percent (20%) of the shares of Terrain Common Stock outstanding immediately prior to the Merger to the Company stockholders in connection with the Contemplated Transactions, pursuant to the Nasdaq rules;

(ii) the change of control of Terrain resulting from the Merger pursuant to the Nasdaq rules;

(iii) an amendment to Terrain’s certificate of incorporation to effect the Reverse Stock Split;

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(iv) the Equity Plan Proposals; and

(v) an amendment to Terrain’s certificate of incorporation to provide for the exculpation of officers (the matters contemplated by the clauses 6.3(a)(i) – (iii) are referred to as the “Terrain Stockholder Matters”, and such meeting, the “Terrain Stockholder Meeting”).

The Terrain Stockholder Meeting shall be held as promptly as practicable after the Registration Statement is declared effective under the Securities Act, and in any event no later than forty-five (45) days after the effective date of the Registration Statement. Terrain shall take reasonable measures to ensure that all proxies solicited in connection with the Terrain Stockholder Meeting are solicited in compliance with all applicable Law. Notwithstanding anything to the contrary contained herein, if on the date of the Terrain Stockholder Meeting, or a date preceding the date on which the Terrain Stockholder Meeting is scheduled, Terrain reasonably believes that (i) it will not receive proxies sufficient to obtain the Required Terrain Stockholder Vote, whether or not a quorum would be present or (ii) it will not have sufficient shares of Terrain Common Stock represented (whether in person or by proxy) to constitute a quorum necessary to conduct the business of the Terrain Stockholder Meeting, Terrain may postpone or adjourn, or make one or more successive postponements or adjournments of, the Terrain Stockholder Meeting as long as the date of the Terrain Stockholder Meeting is not postponed or adjourned more than an aggregate of 10 calendar days in connection with any postponements or adjournments, provided, however, that more than one such postponement or adjournment shall not be permitted without the Company’s prior written consent.

(b) Terrain agrees that, subject to Section 6.3(c): (i) the Terrain Board shall recommend that the holders of Terrain Common Stock vote to approve the Terrain Stockholder Matters and the Equity Plan Proposals and shall use commercially reasonable efforts to solicit such approval within the timeframe set forth in Section 6.3(a) above, (ii) the Proxy Statement shall include a statement to the effect that the Terrain Board recommends that Terrain’s stockholders vote to approve the Terrain Stockholder Matters and the Equity Plan Proposals (the recommendation of the Terrain Board being referred to as the “Terrain Board Recommendation”) and (iii) the Terrain Board Recommendation shall not be withheld, amended, withdrawn or modified (and the Terrain Board shall not publicly propose to withhold, amend, withdraw or modify the Terrain Board Recommendation) in a manner adverse to the Company, and no resolution by the Terrain Board or any committee thereof to withhold, amend, withdraw or modify the Terrain Board Recommendation in a manner adverse to the Company or to adopt, approve or recommend (or publicly propose to adopt, approve or recommend) any Acquisition Proposal shall be adopted or proposed (any failure to take any of the actions set forth in the clauses (i) through (iii) or any action that is prohibited to be taken in the clauses (i) through (iii), collectively, a “Terrain Board Adverse Recommendation Change”).

(c) Notwithstanding anything to the contrary contained in Section 6.3(b), and subject to compliance with Section 5.4 and Section 6.3, if at any time prior to the approval of the Terrain Stockholder Matters by the Required Terrain Stockholder Vote, (i) Terrain receives a bona fide written Acquisition Proposal (which Acquisition Proposal did not arise out of a breach of Section 5.4) from any Person that has not been withdrawn and after consultation with outside legal counsel and its financial advisor, the Terrain Board shall have determined, in good faith, that such Acquisition Proposal is a Superior Offer or (ii) as a result of a Terrain Intervening Event, the Terrain Board may make a Terrain Board Adverse Recommendation Change if, but only if:

(i) in the case of a Superior Offer, following the receipt of and on account of such Superior Offer, (i) the Terrain Board determines in good faith, based on the advice of its outside legal counsel that the failure to withhold, amend, withdraw or modify the Terrain Board Recommendation would reasonably be expected to be inconsistent with its fiduciary duties

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under applicable Law (after taking into account, if applicable, such alterations of the terms and conditions of this Agreement agreed to by the Company); and (ii) Terrain has, and has caused its financial advisors and outside legal counsel to, during the Notice Period, negotiate with the Company in good faith to make such adjustments to the terms and conditions of this Agreement so that such Acquisition Proposal ceases to constitute a Superior Offer; provided that (1) the Company receives written notice from Terrain confirming that the Terrain Board has determined to change its recommendation during the Notice Period, which notice shall include a description in reasonable detail of the reasons for such Terrain Board Adverse Recommendation Change, and written copies of any relevant proposed transaction agreements with any party making a potential Superior Offer and a summary of material terms and conditions of the Acquisition Proposal that are not in writing, (2) during any Notice Period, the Company shall be entitled to deliver to Terrain one or more counterproposals to such Acquisition Proposal and Terrain will, and cause its Representatives to be reasonably available to, negotiate with the Company in good faith (to the extent the Company desires to negotiate) to make such adjustments in the terms and conditions of this Agreement so that the applicable Acquisition Proposal ceases to constitute a Superior Offer; and (3) in the event of any amendment to any potential Superior Offer (including any revision in the amount, form or mix of consideration the Terrain’s stockholders would receive as a result of such potential Superior Offer), Terrain shall be required to provide the Company with notice of such amendment, and the Notice Period shall be extended, if applicable, to ensure that at least three (3) Business Days remain in the Notice Period following such notification during which the parties shall comply again with the requirements of this Section 6.3(c) and the Terrain Board shall not make a Terrain Board Adverse Recommendation Change prior to the end of such Notice Period as so extended (it being understood that there may be multiple extensions).

(ii) in the case of an Terrain Intervening Event, in response to such Terrain Intervening Event, the Terrain Board determines in good faith, based on the advice of its outside legal counsel, that the failure to withhold, amend, withdraw or modify the Terrain Board Recommendation would reasonably be expected to be inconsistent with its fiduciary duties under applicable Law (after taking into account, if applicable, such alterations of the terms and conditions of this Agreement agreed to by the Company); provided that (1) the Company receives written notice from Terrain confirming that the Terrain Board has determined to change its recommendation during the Notice Period, which notice shall include a description in reasonable detail of the reasons for such Terrain Board Adverse Recommendation Change and a description of the Company Intervening Event; (2) during any Notice Period, the Company shall be entitled to deliver to the Terrain one or more proposals with respect to the revisions of the terms or conditions of this Agreement and Terrain will, and cause its Representatives to be reasonably available to, negotiate with the Company in good faith (to the extent the Company desires to negotiate) to make such adjustments in the terms and conditions of this Agreement and (3) in the event of any material changes to the facts and circumstances of the Terrain Intervening Event, Terrain shall be required to provide the Company with notice of such material changes, and the Notice Period shall be extended, if applicable, to ensure that at least three (3) Business Days remain in the Notice Period following such notification during which the parties shall comply again with the requirements of this Section 6.3(c)(ii) and the Terrain Board shall not make a Terrain Board Adverse Recommendation Change prior to the end of such Notice Period as so extended (it being understood that there may be multiple extensions).

(d) Terrain’s obligation to call, give notice of and hold the Terrain Stockholder Meeting in accordance with Section 6.3(a) shall not be limited or otherwise affected by the commencement, disclosure, announcement or submission of any Superior Offer or Acquisition Proposal, or by any withdrawal or modification of the Terrain Board Recommendation.

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(e) Nothing contained in this Agreement shall prohibit Terrain or the Terrain Board from complying with Rules 14d-9 and 14e-2(a) promulgated under the Exchange Act; provided however, that any disclosure made by Terrain or the Terrain Board pursuant to Rules 14d-9 and 14e-2(a) shall be limited to a statement that Terrain is unable to take a position with respect to the bidder’s tender offer unless the Terrain Board determines in good faith, after consultation with its outside legal counsel, that such statement would reasonably be expected to be inconsistent with its fiduciary duties under applicable Law.

6.4 Efforts; Regulatory Approvals.

(a) The Parties shall use reasonable best efforts to consummate the Contemplated Transactions. Without limiting the generality of the foregoing, each Party: (i) shall make all filings and other submissions (if any) and give all notices (if any) required to be made and given by such Party in connection with the Contemplated Transactions, (ii) shall use reasonable best efforts to obtain each Consent (if any) reasonably required to be obtained (pursuant to any applicable Law or Contract, or otherwise) by such Party in connection with the Contemplated Transactions or for such Contract to remain in full force and effect, (iii) shall use reasonable best efforts to lift any injunction prohibiting, or any other legal bar to, the Contemplated Transactions and (iv) shall use reasonable best efforts to satisfy the conditions precedent to the consummation of this Agreement.

(b) Notwithstanding the generality of the foregoing, each Party shall use reasonable best efforts to file or otherwise submit, as soon as practicable after the date of this Agreement, all applications, notices, reports and other documents reasonably required to be filed by such Party with or otherwise submitted by such Party to any Governmental Authority with respect to the Contemplated Transactions, and to submit promptly any additional information requested by any such Governmental Authority.

6.5 Treatment of Company Options.

(a) Subject to Section 6.5(c), at the Effective Time, each Company Option that is outstanding and unexercised immediately prior to the Effective Time under the Company Plan and that, following assumption by Terrain at the Effective Time, will be eligible to be registered on Form S-8, whether or not vested, shall be converted into and become an option to purchase Terrain Common Stock, and Terrain shall assume the Company Plan and each such Company Option in accordance with the terms (as in effect as of the date of this Agreement) of the Company Plan and the terms of the stock option agreement by which such Company Option is evidenced. All other Company Options shall be cancelled immediately prior to the Effective Time. All rights with respect to Company Common Stock under Company Options assumed by Terrain shall thereupon be converted into rights with respect to Terrain Common Stock in a manner consistent with the requirements of the Code and applicable Treasury Regulations, including Treasury Regulation Section 1.409A-1(b)(5)(D) (each such Company Option, an “Assumed Option”). Accordingly, from and after the Effective Time: (i) each Assumed Option may be exercised solely for shares of Terrain Common Stock, (ii) the number of shares of Terrain Common Stock subject to each Assumed Option shall be determined by multiplying (A) the number of shares of Company Common Stock that were subject to such Company Option, as in effect immediately prior to the Effective Time, by (B) the Exchange Ratio, and rounding the resulting number down to the nearest whole number of shares of Terrain Common Stock, (iii) the per share exercise price for the Terrain Common Stock issuable upon exercise of each Assumed Option shall be determined by dividing (A) the per share exercise price of Company Common Stock subject to such Company Option, as in effect immediately prior to the Effective Time, by (B) the Exchange Ratio and rounding the resulting exercise price up to the nearest whole cent and (iv) any restriction on the exercise of any Assumed Option shall continue in full force and effect and the term, exercisability, vesting schedule and other provisions of such Company Option shall otherwise remain

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unchanged; provided, however, that: (A) to the extent provided under the terms of a Company Option, such Assumed Option shall, in accordance with its terms, be subject to further adjustment as appropriate to reflect any stock split, division or subdivision of shares, stock dividend, reverse stock split, consolidation of shares, reclassification, recapitalization or other similar transaction with respect to Terrain Common Stock subsequent to the Effective Time and (B) the Terrain Board or a committee thereof shall succeed to the authority and responsibility of the Company Board or any committee thereof with respect to each Company Option assumed by Terrain. Notwithstanding anything to the contrary in this Section 6.5(a), the conversion of each Company Option (regardless of whether such option qualifies as an “incentive stock option” within the meaning of Section 422 of the Code) into an option to purchase shares of Terrain Common Stock shall be made in a manner consistent with Treasury Regulations Section 1.424-1, such that the conversion of a Company Option shall not constitute a “modification” of such Company Option for purposes of Section 409A or Section 424 of the Code.

(b) Terrain shall file with the SEC, as soon as reasonably practicable after the Effective Time, a registration statement on Form S-8, if available for use by Terrain, relating to the shares of Terrain Common Stock issuable with respect to Company Options assumed by Terrain in accordance with Section 6.5(a).

(c) Prior to the Effective Time, the Company shall take all actions that may be necessary (under the Company Plans and otherwise) to effectuate the provisions of this Section 6.5 and to ensure that, from and after the Effective Time, holders of Company Options have no rights with respect thereto other than those specifically provided in this Section 6.5.

6.6 Treatment of Terrain Equity Awards.

(a) Terrain Options and Terrain SARs. Subject to Section 6.18, prior to the Closing, the Terrain Board shall have adopted appropriate resolutions and taken all other actions necessary and appropriate to provide that the vesting of each unexpired, unexercised and unvested Terrain Option and Terrain SAR shall be accelerated in full effective as of immediately prior to the Effective Time, contingent on the occurrence of the Closing, and each unexpired, unexercised and fully vested Terrain Option and Terrain SAR shall be canceled and extinguished as of the Effective Time and, in exchange therefor, each former holder of any such Terrain Option and Terrain SAR shall have the right to receive from Terrain or the Surviving Corporation (i) a number of shares of Terrain Common Stock equal to the quotient of (x) the Option/SAR Value multiplied by 55% divided by (y) the Terrain In-the-Money Price (rounded down to the nearest whole share) (the “Option/SAR Stock Amount”) and (ii) an amount in cash equal to the product obtained by multiplying the Option/SAR Stock Value by 45% (rounded up so that such amount, when added to the value of the Option/SAR Stock Amount, equals the Option/SAR Value) (the “Option/SAR Cash Amount,” and the aggregate Option/SAR Cash Amount for all Terrain Options and Terrain SARs, the “Aggregate Option/SAR Cash Amount”). From and after the Effective Time, the holder of any canceled Terrain Option and Terrain SAR shall only be entitled to receive the Option/SAR Stock Amount and the Option/SAR Cash Amount in respect of such canceled Terrain Option or Terrain SAR, as applicable. For purposes of this Section 6.6(a), with respect to each Terrain Option or Terrain SAR, the “Option/SAR Value” is equal to the product of (A) the aggregate number of shares of Terrain Common Stock subject to or underlying such Terrain Option or Terrain SAR, as applicable, multiplied by (B) (i) the Terrain In-the-Money Price, minus (ii) the exercise or strike price of the Terrain Option or Terrain SAR, as applicable. For the avoidance of doubt, as of the Effective Time, each unexpired and unexercised Terrain Option or Terrain SAR with a per share exercise price or strike price that is equal to or greater than the Terrain In-the-Money Price shall be canceled for no consideration.

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(b) Terrain RSUs. Subject to Section 6.18, prior to the Closing, the Terrain Board shall have adopted appropriate resolutions and taken all other actions necessary and appropriate to provide that the vesting of each outstanding and unvested Terrain RSU shall be accelerated in full effective as of immediately prior to the Effective Time, contingent on the occurrence of the Closing and each Terrain RSU shall be canceled and extinguished as of the Effective Time and, in exchange therefor, each former holder of any such Terrain RSU shall have the right to receive from Terrain or the Surviving Corporation (i) a number of shares of Terrain Common Stock (rounded down to the nearest whole share) equal to the aggregate number of shares of Terrain Common Stock issuable pursuant to such Terrain RSU (the “RSU Stock Amount”) multiplied by 55% and (ii) an amount in cash equal to the product obtained by multiplying (x) the Terrain In-the-Money Price by (y) the RSU Stock Amount by (z) 45% (rounded up so that such amount, when added to the value of the RSU Stock Amount, equals the value of such Terrain RSUs) (the “RSU Cash Amount,” and the aggregate RSU Cash Amount for all Terrain RSUs, the “Aggregate RSU Cash Amount,” and the Aggregate Option/SAR Cash Amount together with the Aggregate RSU Cash Amount, the “Aggregate Cash Amount”). From and after the Effective Time, the holder of any canceled Terrain RSU shall only be entitled to receive the RSU Stock Amount and the RSU Cash Amount in respect of such canceled Terrain RSU.

(c) Payment of Terrain Equity Awards. The portion of the Aggregate Cash Amount payable to any Terrain employee or former employee will be made through the payroll processing system of Terrain or the Surviving Corporation, in accordance with standard payroll practices, and the portion of the Aggregate Cash Amount payable to non-employee service providers and non-employee directors will be paid to the Paying Agent or such other method as Terrain typically uses for payments to such Persons provided, however, that to the extent that any amounts payable under Section 6.6 constitute nonqualified deferred compensation subject to Section 409A of the Code or are subject to any agreement, plan or arrangement that requires any delay in payment of such amounts beyond the time period provided by this Section 6.6 or Section 6.19, Terrain or the Surviving Corporation shall pay such amounts at the earliest time permitted under the terms of the applicable agreement, plan or arrangement and that will not trigger a Tax or penalty under Section 409A of the Code. Terrain or the Surviving Corporation shall timely deposit with the applicable Governmental Authority all withholding and Terrain Transaction Payroll Taxes due in connection with the transactions contemplated by this Section 6.6.

6.7 Employee Benefits. Terrain and the Company shall cause the Surviving Corporation to comply with the terms of any employment, severance, retention, change of control, or similar agreement specified on Section 4.17(c) of the Terrain Disclosure Schedule, subject to the provisions of such agreements.

6.8 Indemnification of Officers and Directors.

(a) From the Effective Time through the sixth anniversary of the date on which the Effective Time occurs, each of Terrain and the Surviving Corporation shall indemnify and hold harmless each person who is now, or has been at any time prior to the date hereof, or who becomes prior to the Effective Time, a director or officer of Terrain or the Company, respectively (the “D&O Indemnified Parties”), against all claims, losses, liabilities, damages, judgments, fines and reasonable fees, costs and expenses, including attorneys’ fees and disbursements (collectively, “Costs”), incurred in connection with any claim, action, suit, proceeding or investigation, whether civil, criminal, administrative or investigative, arising out of or pertaining to the fact that the D&O Indemnified Party is or was a director or officer of Terrain or of the Company, whether asserted or claimed prior to, at or after the Effective Time, in each case, to the fullest extent permitted under the DGCL. Each D&O Indemnified Party will be entitled to advancement of expenses incurred in the defense of any such claim, action, suit, proceeding or investigation from each of Terrain and the Surviving Corporation, jointly and severally, upon receipt by Terrain or the Surviving Corporation from the D&O Indemnified Party of a request therefor; provided that any such person to whom expenses are advanced provides an undertaking to Terrain, to the extent then required by the DGCL, to repay such advances if it is ultimately determined that such person is not entitled to indemnification. Without otherwise limiting the D&O Indemnified Parties’ rights with regards to counsel, following the Effective Time, the D&O Indemnified Parties shall be entitled to continue to retain Goodwin Procter LLP, or such other counsel selected by the D&O Indemnified Parties.

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(b) The provisions of the certificate of incorporation and bylaws of Terrain with respect to indemnification, advancement of expenses and exculpation of present and former directors and officers of Terrain that are presently set forth in the certificate of incorporation and bylaws of Terrain shall not be amended, modified or repealed for a period of six years from the Effective Time in a manner that would adversely affect the rights thereunder of individuals who, at or prior to the Effective Time, were officers or directors of Terrain, unless such modification is required by applicable Law. The certificate of incorporation and bylaws of the Surviving Corporation shall contain, and Terrain shall cause the certificate of incorporation and bylaws of the Surviving Corporation to so contain, provisions no less favorable with respect to indemnification, advancement of expenses and exculpation of present and former directors and officers as those presently set forth in the certificate of incorporation and bylaws of Terrain.

(c) From and after the Effective Time, (i) the Surviving Corporation shall fulfill and honor in all respects the obligations of the Company to its D&O Indemnified Parties as of immediately prior to the Closing pursuant to any indemnification provisions under the Company’s Organizational Documents and pursuant to any indemnification agreements between the Company and such D&O Indemnified Parties, with respect to claims arising out of matters occurring at or prior to the Effective Time and (ii) Terrain shall fulfill and honor in all respects the obligations of Terrain to its D&O Indemnified Parties as of immediately prior to the Closing pursuant to any indemnification provisions under Terrain’s Organizational Documents and pursuant to any indemnification agreements between Terrain and such D&O Indemnified Parties, with respect to claims arising out of matters occurring at or prior to the Effective Time.

(d) From and after the Effective Time, Terrain shall maintain directors’ and officers’ liability insurance policies, with an effective date as of the Closing Date, on commercially available terms and conditions and with coverage limits customary for U.S. public companies similarly situated to Terrain. In addition, Terrain shall purchase, prior to the Effective Time, a six-year prepaid “D&O tail policy” for the non-cancellable extension of the directors’ and officers’ liability coverage of Terrain’s existing directors’ and officers’ insurance policies for a claims reporting or discovery period of at least six years from and after the Effective Time with respect to any claim related to any period of time at or prior to the Effective Time with terms, conditions, retentions and limits of liability that are no less favorable than the coverage provided under Terrain’s existing policies as of the date of this Agreement with respect to any actual or alleged error, misstatement, misleading statement, act, omission, neglect, breach of duty or any matter claimed against a director or officer of Terrain by reason of him or her serving in such capacity that existed or occurred at or prior to the Effective Time (including in connection with this Agreement or the Contemplated Transactions or in connection with Terrain’s initial public offering of shares of Terrain Common Stock).

(e) From and after the Effective Time, Terrain shall pay all expenses, including reasonable attorneys’ fees, that are incurred by the persons referred to in this Section 6.8 in connection with their enforcement of the rights provided to such persons in this Section 6.8.

(f) The provisions of this Section 6.8 are intended to be in addition to the rights otherwise available to the current and former officers and directors of Terrain and the Company by Law, charter, statute, bylaw or agreement, and shall operate for the benefit of, and shall be enforceable by, each of the D&O Indemnified Parties, their heirs and their representatives.

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(g) In the event Terrain or the Surviving Corporation or any of their respective successors or assigns (i) consolidates with or merges into any other Person and shall not be the continuing or surviving corporation or entity of such consolidation or merger or (ii) transfers all or substantially all of its properties and assets to any Person, then, and in each such case, proper provision shall be made so that the successors and assigns of Terrain or the Surviving Corporation, as the case may be, shall succeed to the obligations set forth in this Section 6.8. Terrain shall cause the Surviving Corporation to perform all of the obligations of the Surviving Corporation under this Section 6.8.

6.9 Disclosure. Without limiting any Party’s obligations under the Confidentiality Agreement, no Party shall, and no Party shall permit any of its Subsidiaries or any of its Representative to, issue any press release or make any disclosure (to any customers or employees of such Party, to the public or otherwise) regarding the Contemplated Transactions unless: (a) the other Party shall have approved such press release or disclosure in writing, such approval not to be unreasonably conditioned, withheld or delayed; or (b) such Party shall have determined in good faith, upon the advice of outside legal counsel, that such disclosure is required by applicable Law and, to the extent practicable, before such press release or disclosure is issued or made, such Party advises the other Party of, and consults with the other Party regarding, the text of such press release or disclosure; provided, however, that each of the Company and Terrain may make any public statement in response to specific questions by the press, analysts, investors or those attending industry conferences or financial analyst conference calls, so long as any such statements are consistent with previous press releases, public disclosures or public statements made by the Company or Terrain in compliance with this Section 6.9. Notwithstanding the foregoing, a Party need not consult with any other Parties in connection with such portion of any press release, public statement or filing to be issued or made pursuant to Section 6.3(d) or with respect to any Acquisition Proposal, Terrain Board Adverse Recommendation Change or Company Board Adverse Recommendation Change, as applicable, or with respect to Terrain only, pursuant to Section 6.3(e)

6.10 Listing. At or prior to the Effective Time, Terrain shall (a) use its commercially reasonable efforts to maintain its existing listing on Nasdaq until the Effective Time and to obtain approval of the listing of the combined corporation on Nasdaq; (b) (i) prepare and submit to Nasdaq a notification form for the listing of the shares of Terrain Common Stock being issued in the Merger, and (ii) use its commercially reasonable efforts to cause such shares to be approved for listing (subject to official notice of issuance) on the Nasdaq market at or prior to the Effective Time; and (c) to the extent required by Nasdaq Marketplace Rule 5110, to file an initial listing application for Terrain Common Stock on Nasdaq (the “Nasdaq Listing Application”) and to use commercially reasonably efforts to cause such Nasdaq Listing Application to be conditionally approved prior to the Effective Time. The Company and Terrain will each cooperate the other Party as reasonably requested by such Party with respect to the Nasdaq Listing Application and promptly furnish to such Party all information concerning the Company or Terrain, as applicable, and its stockholders that may be required or reasonably requested in connection with any action contemplated by this Section 6.10. The Company agrees to pay all Nasdaq fees associated with the Nasdaq Listing Application.

6.11 Transaction Litigation. Terrain shall promptly notify the Company in writing of, shall keep the Company promptly informed regarding any such Transaction Litigation, and shall give the Company the opportunity to participate in the defense and settlement of, any Transaction Litigation (including by allowing the Company to offer comments or suggestions with respect to such Transaction Litigation, which Terrain shall consider in good faith). Terrain shall give the Company the opportunity to consult with counsel to Terrain regarding the defense and settlement of any such Transaction Litigation, and in any event, Terrain shall not settle or compromise or agree to settle or compromise any Transaction Litigation without the Company’s prior written consent (which consent shall not be unreasonably withheld, conditioned or delayed).

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6.12 Tax Matters.

(a) Each Party shall, and shall cause its respective Affiliates to, use reasonable best efforts to cause the Merger to qualify for the Intended Tax Treatment. None of the Parties shall (and each of the Parties shall cause their respective Affiliates not to) take any action, or knowingly fail to take any action, whether before or after the Effective Time, where such action or failure could reasonably be expected to prevent or impede the Merger from qualifying for the Intended Tax Treatment. Each Party shall promptly notify the other Parties in writing if, before the Closing Date, such Party knows or has reason to believe that the Merger may not qualify for the Intended Tax Treatment (and whether the terms of this Agreement could be reasonably amended in order to facilitate such qualification). Without limiting the generality of the foregoing and notwithstanding anything to the contrary herein, if, after the date hereof, Terrain and the Company mutually determine in good faith that the Merger is not reasonably expected to qualify as a “reorganization” within the meaning of Section 368(a) of the Code, the Parties shall use commercially reasonable efforts to restructure the transactions contemplated hereby (such restructured transactions, the “Alternative Transaction Structure”) in a manner that is reasonably expected to cause the Alternative Transaction Structure to so qualify, including by adding a second merger to take place immediately after the Merger whereby the surviving company in the Merger would merge with and into a new limited liability company that is a wholly owned Subsidiary of Terrain (“Newco”), with Newco being the surviving company in such merger.

(b) If, in connection with the preparation and filing of the Registration Statement and Proxy Statement, the SEC requests or requires that a tax opinion be prepared and submitted in such connection, Terrain and the Company shall deliver to one or more nationally recognized tax counsel rendering such opinion(s) customary Tax representation letters reasonably satisfactory to such tax counsel, dated and executed as of the date the Registration Statement and Proxy Statement shall have been declared effective by the SEC and such other date(s) as determined reasonably necessary by such tax counsel in connection with the preparation and filing of the Registration Statement and Proxy Statement, and, if required, the Parties shall use commercially reasonable efforts to cause such tax counsel to furnish such opinion(s), subject to customary assumptions and limitations, to the effect that the Intended Tax Treatment should apply to the Merger.

(c) Each of the Parties shall (and shall cause their respective Affiliates to) reasonably cooperate in the preparation, execution and filing of all Tax Returns, and any Tax audit or other proceeding. Such cooperation shall include the retention and (upon the other Party’s request) the provision (with the right to make copies) of records and information reasonably relevant to any Tax audit or other proceeding, making employees available on a mutually convenient basis to provide additional information and explanation of any material provided hereunder.

(d) At least ten Business Days prior to Closing, Terrain will provide the Company with its determinations regarding the applicability of Section 280G of the Code and reasonable supporting calculations to any employee, officer, director or other service provider of Terrain or any of its Subsidiaries that, in connection with the Contemplated Transactions (i) may receive the payment of any “parachute payment” within the meaning of Section 280G of the Code or (ii) may receive a benefit in the form of accelerated vesting, payment, funding or delivery of, or increase the amount or value of, any payment or benefit received. The parties will use commercially reasonable efforts to discuss any reasonable objections to such determinations provided and, following such discussions, the parties agree that its tax reporting will be consistent with the determinations absent manifest error.

(e) At or prior to the Closing, the Company shall provide Terrain a properly executed certificate pursuant to Treasury Regulations Sections 1.1445-2(c) and 1.897-2(h), together with a form of notice to the IRS in accordance with the requirements of Treasury Regulations Section 1.897-2(h), in each case, in form and substance reasonably acceptable to Terrain; provided, however, that Terrain’s sole recourse with respect to the failure of the Company to comply with this Section 6.12(e) will be to withhold the appropriate Taxes from the Merger Consideration as required by applicable Law.

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6.13 Directors and Officers. The Parties shall take all necessary action so that immediately after the Effective Time, (i) the Terrain Board is comprised of seven (7) members, with two (2) such members (each of which shall be independent directors of Terrain) designated by Terrain (the “Terrain Designees”) prior to the Closing by written notice to the Company; and five (5) such members designated by the Company (the “Company Designees”) prior to the Closing by written notice to Terrain; and (ii) the Persons listed in Section 6.13(c) of the Company Disclosure Schedule are appointed to the positions of officers of Terrain. If any Person listed in Section 6.13 of the Company Disclosure Schedule or designated a member of the Company Board is unable or unwilling to serve as officer or director of Terrain, as set forth therein, the Party designating such Person (as set forth in this Section 6.13) shall designate an alternative. To the extent permissible under the DGCL, one Terrain Designee shall be elected or appointed to the class of directors the term of which expires at the 2024 annual meeting of Terrain stockholders and the other Terrain Designee shall be elected or appointed to the class of directors the term of which expires at the 2026 annual meeting of Terrain stockholders.

6.14 Termination of Certain Agreements and Rights. The Company shall use commercially reasonable efforts to cause any stockholders agreements, voting agreements, registration rights agreements, co-sale agreements and any other similar Contracts between the Company and any holders of Company Capital Stock, including any such Contract granting any Person investor rights, rights of first refusal, registration rights or director registration rights (collectively, the “Investor Agreements”), to be terminated immediately prior to the Effective Time, without any liability being imposed on the part of Terrain or the Surviving Corporation.

6.15 Section 16 Matters. Prior to the Effective Time, Terrain shall take all such steps as may be required to cause any acquisitions of Terrain Common Stock and any options to purchase Terrain Common Stock in connection with the Contemplated Transactions, by each individual who is reasonably expected to become subject to the reporting requirements of Section 16(a) of the Exchange Act with respect to Terrain, to be exempt under Rule 16b-3 promulgated under the Exchange Act.

6.16 Allocation Certificate and Terrain Outstanding Shares Certificate.

(a) The Company will prepare and deliver to Terrain at least two (2) Business Days following the final determination of Net Cash at the Anticipated Closing Date a certificate signed by the Chief Executive Officer or Chief Financial Officer of the Company in a form reasonably acceptable to Terrain setting forth (as of immediately prior to the Effective Time and after giving effect to the closing of the Pre-Closing Financing) (a) each holder of Company Capital Stock or Company Options, (b) such holder’s name and address, (c) the number and type of Company Capital Stock held and/or underlying the Company Options as of the Closing Date for each such holder and (d) the number of shares of Terrain Common Stock to be issued to such holder, or to underlie any Terrain Option to be issued to such holder, pursuant to this Agreement in respect of the Company Capital Stock or Company Options held by such holder as of immediately prior to the Effective Time (the “Allocation Certificate”).

(b) Terrain will prepare and deliver to the Company at least two (2) Business Days prior to the Closing Date a certificate signed by the Chief Financial Officer of Terrain in a form reasonably acceptable to the Company, setting forth (as of immediately prior to the Effective Time) (a) each record holder of Terrain Options or Terrain SARs, (b) such record holder’s name and address and (c) the number of shares of Terrain Common Stock held and/or underlying the Terrain Options or Terrain SARs as of the Effective Time for such holder (the “Terrain Outstanding Shares Certificate”).

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6.17 Terrain Equity Plan.

(a) Prior to or as of the Effective Time, Terrain shall approve, adopt and submit for approval by the stockholders of Terrain, and recommend and use commercially reasonable efforts to cause the stockholders of Terrain to approve, (a) the 2023 Equity Incentive Plan in the form attached hereto as Exhibit D (the “2023 Plan”) which will provide for new awards for a number of shares of Terrain Common Stock not exceeding 10% of the Terrain Common Stock issued and expected to be outstanding immediately after the Effective Time, as mutually agreed upon by Terrain and the Company, and subject to approval by the Terrain Board (for avoidance of doubt, such number of shares shall be in addition to the number of shares of Terrain Common Stock subject to outstanding Terrain Options or subject to Company Options assumed by Terrain as contemplated by Section 6.5(a)), and which will include an annual increase pursuant to an “evergreen” provision which will provide for an automatic annual increases of 5% of the total number of fully diluted shares of capital stock of Terrain as of the day prior to such increase; and (b) the 2023 Employee Stock Purchase Plan (the “2023 ESPP”), in the form attached hereto as Exhibit E, with a total pool of shares of Terrain Common Stock not exceeding 1% of the Terrain Common Stock issued and expected to be outstanding immediately after the Effective Time, and including an annual increase pursuant to an “evergreen” provision which will provide for an automatic annual increase of 1% of the total number of fully diluted shares of capital stock of Terrain outstanding as of the day prior to such increase ((a) and (b), collectively, the “Equity Plan Proposals”). Subject to the approval of the 2023 Plan by the stockholders of Terrain, Terrain shall file with the SEC, promptly after the Effective Time, a registration statement on Form S-8 (or any successor form), if available for use by Terrain, relating to the shares of Terrain Common Stock issuable with respect to the 2023 Plan.

(b) Prior to the Closing, Terrain shall take all reasonable actions required to (A) terminate the Terrain Employee Stock Purchase Plan (the “Terrain ESPP”), as of immediately prior to the Closing Date and (B) provide that no new offering period shall commence after the date of this Agreement.

6.18 Payment of Terrain Closing Cash Dividend. Prior to the Effective Time, Terrain shall declare a cash dividend (the “Terrain Closing Cash Dividend”) to the holders of Terrain Common Stock as of a record date prior to the Closing Date, which, in the aggregate shall not exceed an amount equal to (x) $67.5 million minus (y) the Aggregate Cash Amount, subject to funds being legally available therefor; provided that the payment of the Terrain Closing Cash Dividend may be conditioned upon the occurrence of the Closing; provided, further, that Terrain shall, prior to the Closing Date, set aside the Aggregate Cash Amount to be paid in accordance with Section 6.6 and shall deliver to the Paying Agent, for the payment of the Terrain Closing Cash Dividend, the aggregate amount required to be paid pursuant to the Terrain Closing Cash Dividend. Terrain shall announce, declare and pay (or cause to be paid) the Terrain Closing Cash Divided in compliance with all applicable Law.

6.19 Lock-Up Agreements. Prior to the Effective Time, each of Terrain and the Company will use commercially reasonable efforts to cause, the executive officers and directors continuing with the Surviving Corporation following the Closing to execute and deliver lock-up agreements substantially in the form attached hereto as Exhibit C.

6.20 Terrain SEC Documents. From the date of this Agreement until the Effective Time, Terrain shall use reasonable best efforts to timely file with the SEC all Terrain SEC Documents. As of its filing date, or if amended after the date of this Agreement, as of the date of the last such amendment, each Terrain SEC Document filed by Terrain with the SEC shall comply in all material respects with the applicable requirements of the Exchange Act and the Securities Act.

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6.21 Terrain Vote. Immediately following the execution and delivery of this Agreement, Terrain, in its capacity as the sole stockholder of Merger Sub, will execute and deliver to Merger Sub and the Company a written consent approving the Merger in accordance with the DGCL. Terrain shall cause Merger Sub to comply with all of its respective obligations under this Agreement and Merger Sub shall not engage in any activities of any nature except as provided in or contemplated by this Agreement.

6.22 401(k). If requested by the Company in writing at least ten (10) Business Days prior to the Effective Time, Terrain will terminate Terrain’s 401(k) Plan (the “Terrain 401(k) Plan”) as of the day prior to the Closing Date (but subject to the consummation of the Merger). In the event that the Company timely requests that the Terrain 401(k) Plan be terminated, Terrain will provide the Company with written evidence that the Terrain 401(k) Plan has been terminated (the form and substance of which will be subject to review and approval by the Company). If the Terrain 401(k) Plan is terminated, as provided herein, the Company shall, or shall cause one of its Affiliates to, use commercially reasonable efforts to have in effect a tax qualified defined contribution retirement plan as of the Effective Time that includes a qualified cash or deferred arrangement within the meaning of Section 401(k) of the Code (the “Company 401(k) Plan”) in which each Continuing Employee who is actively employed at the Closing shall be eligible to participate as of the Closing pursuant to the terms of the Company 401(k) Plan, and as soon as practicable following the Closing, the assets thereof shall be distributed to the participants, and the Company shall permit such Continuing Employees to make rollover contributions to the Company 401(k) Plan of “eligible rollover distributions” within the meaning of Section 401(a)(31) of the Code (including promissory notes evidencing outstanding participant loans), in the form of cash (and in-kind in the case of participant loan notes), in an amount equal to the full account balance distributed to such Continuing Employee from the Terrain 401(k) Plan.

Section 7. Conditions Precedent to Obligations of Each Party.

The obligations of each Party to effect the Merger and otherwise consummate the Contemplated Transactions to be consummated at the Closing are subject to the satisfaction or, to the extent permitted by applicable law, the written waiver by each of the Parties, at or prior to the Closing, of each of the following conditions:

7.1 Effectiveness of Registration Statement. The Registration Statement shall have become effective in accordance with the provisions of the Securities Act, and shall not be subject to any stop order or proceeding (or threatened proceeding by the SEC) seeking a stop order with respect to the Registration Statement that has not been withdrawn.

7.2 No Restraints. No temporary restraining order, preliminary or permanent injunction or other Order preventing the consummation of the Contemplated Transactions shall have been issued by any court of competent jurisdiction or other Governmental Authority of competent jurisdiction and remain in effect and there shall not be any Law which has the effect of making the consummation of the Contemplated Transactions illegal.

7.3 Stockholder Approval. (a) Terrain shall have obtained the Required Terrain Stockholder Vote and (b) the Company shall have obtained the Required Company Stockholder Vote.

7.4 Nasdaq Listing. The approval of the listing of the additional shares of Terrain Common Stock on Nasdaq shall have been obtained and the shares of Terrain Common Stock to be issued in the Merger pursuant to this Agreement shall have been approved for listing (subject to official notice of issuance) on Nasdaq.

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Section 8. Additional Conditions Precedent to Obligations of Terrain and Merger Sub.

The obligations of Terrain and Merger Sub to effect the Merger and otherwise consummate the transactions to be consummated at the Closing are subject to the satisfaction or the written waiver by Terrain, at or prior to the Closing, of each of the following conditions:

8.1 Accuracy of Representations. The Company Fundamental Representations shall have been true and correct in all respects as of the date of this Agreement and shall be true and correct on and as of the Closing Date with the same force and effect as if made on and as of such date (except to the extent such representations and warranties are specifically made as of a particular date, in which case such representations and warranties shall be true and correct as of such date). The Company Capitalization Representations shall have been true and correct in all respects as of the date of this Agreement and shall be true and correct on and as of the Closing Date with the same force and effect as if made on and as of such date, except, in each case, (x) for such inaccuracies which are de minimis, individually or in the aggregate or (y) for those representations and warranties which address matters only as of a particular date (which representations and warranties shall have been true and correct, subject to the qualifications as set forth in the preceding clause (x), as of such particular date). The representations and warranties of the Company contained in this Agreement (other than the Company Fundamental Representations and the Company Capitalization Representations) shall have been true and correct as of the date of this Agreement and shall be true and correct on and as of the Closing Date with the same force and effect as if made on the Closing Date except (a) in each case, or in the aggregate, where the failure to be so true and correct would not reasonably be expected to have a Company Material Adverse Effect (without giving effect to any references therein to any Company Material Adverse Effect or other materiality qualifications) or (b) for those representations and warranties which address matters only as of a particular date (which representations shall have been true and correct, subject to the qualifications as set forth in the preceding clause (a), as of such particular date) (it being understood that, for purposes of determining the accuracy of such representations and warranties, any update of or modification to the Company Disclosure Schedule made or purported to have been made after the date of this Agreement shall be disregarded).

8.2 Performance of Covenants. The Company shall have performed or complied with in all material respects all agreements and covenants required to be performed or complied with by it under this Agreement at or prior to the Effective Time.

8.3 Closing Certificate. Terrain shall have received a certificate executed by the Chief Executive Officer or Chief Financial Officer of the Company certifying (a) that the conditions set forth in Sections 8.1, 8.2 and 8.4 have been duly satisfied and (b) that the information set forth in the Allocation Certificate delivered by the Company in accordance with Section 6.18 is true and accurate in all respects as of the Closing Date.

8.4 No Company Material Adverse Effect. Since the date of this Agreement, there shall not have occurred any Company Material Adverse Effect that is continuing.

8.5 Company Lock-Up Agreements. The Company Lock-Up Agreements will continue to be in full force and effect as of immediately following the Effective Time.

8.6 Termination of Investor Agreements. The Investor Agreements shall have been terminated.

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Section 9. Additional Conditions Precedent to Obligation of the Company.

The obligations of the Company to effect the Merger and otherwise consummate the transactions to be consummated at the Closing are subject to the satisfaction or the written waiver by the Company, at or prior to the Closing, of each of the following conditions:

9.1 Accuracy of Representations. Each of the Terrain Fundamental Representations shall have been true and correct in all respects as of the date of this Agreement and shall be true and correct on and as of the Closing Date with the same force and effect as if made on and as of such date (except to the extent such representations and warranties are specifically made as of a particular date, in which case such representations and warranties shall be true and correct as of such date). The Terrain Capitalization Representations shall have been true and correct as of the date of this Agreement and shall be true and correct on and as of the Closing Date with the same force and effect as if made on and as of such date, except, in each case, (x) for such inaccuracies which are de minimis, individually or in the aggregate or (y) for those representations and warranties which address matters only as of a particular date (which representations and warranties shall have been true and correct, subject to the qualifications as set forth in the preceding clause (x), as of such particular date). The representations and warranties of Terrain and Merger Sub contained in this Agreement (other than the Terrain Fundamental Representations and the Terrain Capitalization Representations) shall have been true and correct as of the date of this Agreement and shall be true and correct on and as of the Closing Date with the same force and effect as if made on the Closing Date except (a) in each case, or in the aggregate, where the failure to be true and correct would not reasonably be expected to have a Terrain Material Adverse Effect (without giving effect to any references therein to any Terrain Material Adverse Effect or other materiality qualifications) or (b) for those representations and warranties which address matters only as of a particular date (which representations shall have been true and correct, subject to the qualifications as set forth in the preceding clause (a), as of such particular date) (it being understood that, for purposes of determining the accuracy of such representations and warranties, any update of or modification to the Terrain Disclosure Schedule made or purported to have been made after the date of this Agreement shall be disregarded).

9.2 Performance of Covenants. Terrain and Merger Sub shall have performed or complied with in all material respects all of their agreements and covenants required to be performed or complied with by each of them under this Agreement at or prior to the Effective Time.

9.3 Documents. The Company shall have received the following documents, each of which shall be in full force and effect:

(a) a certificate executed by an executive officer of Terrain confirming that the conditions set forth in Sections 9.1, 9.2 and 9.4 have been duly satisfied;

(b) written resignations in forms satisfactory to the Company, dated as of the Closing Date and effective as of the Closing executed by the officers and directors of Terrain who are not to continue as officers or directors of Terrain pursuant to Section 6.14 hereof; and

(c) the Terrain Outstanding Shares Certificate.

9.4 No Terrain Material Adverse Effect. Since the date of this Agreement, there shall not have occurred any Terrain Material Adverse Effect that is continuing.

9.5 Terrain Lock-Up Agreements. The Terrain Lock-Up Agreements will continue to be in full force and effect as of immediately following the Effective Time.

9.6 Governance Matters. The Terrain Board shall have taken action so that (a) the Persons listed on Section 6.13(c) of the Company Disclosure Schedule will become officers of Terrain, in each case in accordance with Section 6.13 of this Agreement and as of immediately after the Effective Time and (b) the Company Designees and the Terrain Designees will become members of the Terrain Board in accordance with Section 6.13 of this Agreement.

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Section 10. Termination.

10.1 Termination. This Agreement may be terminated prior to the Effective Time (whether before or after adoption of this Agreement by the Company’s stockholders and whether before or after approval of the Terrain Stockholder Matters by Terrain’s stockholders, unless otherwise specified below):

(a) by mutual written consent of Terrain and the Company;

(b) by either Terrain or the Company if the Merger shall not have been consummated by January 31, 2024 (subject to possible extension as provided in this Section 10.1(b), the “End Date”); provided, however, that the right to terminate this Agreement under this Section 10.1(b) shall not be available to the Company or Terrain if such Party’s action or failure to act has been a principal cause of the failure of the Merger to occur on or before the End Date and such action or failure to act constitutes a breach of this Agreement, provided, further, however, that, in the event that the SEC has not declared effective under the Securities Act the Registration Statement by the date which is 60 days prior to the End Date, then either the Company or Terrain shall be entitled to extend the End Date for an additional 60 days;

(c) by either Terrain or the Company if a court of competent jurisdiction or other Governmental Authority shall have issued a final and nonappealable Order, or shall have taken any other action, having the effect of permanently restraining, enjoining or otherwise prohibiting the Contemplated Transactions;

(d) by Terrain if the Required Company Stockholder Vote shall not have been obtained within five (5) Business Days of the Registration Statement becoming effective in accordance with the provisions of the Securities Act; provided, however, that once the Required Company Stockholder Vote has been obtained, Terrain may not terminate this Agreement pursuant to this Section 10.1(d);

(e) by either Terrain or the Company if (i) the Terrain Stockholder Meeting (including any adjournments and postponements thereof) shall have been held and completed and Terrain’s stockholders shall have taken a final vote on the Terrain Stockholder Matters and (ii) the Terrain Stockholder Matters shall not have been approved at the Terrain Stockholder Meeting (or at any adjournment or postponement thereof) by the Required Terrain Stockholder Vote; provided, however, that the right to terminate this Agreement under this Section 10.1(e) shall not be available to Terrain where the failure to obtain the Required Terrain Stockholder Vote shall have been caused by the action or failure to act of Terrain and such action or failure to act constitutes a material breach by Terrain of this Agreement;

(f) by the Company (within 10 business days of notice of the applicable the occurrence of a Terrain Triggering Event and prior to the approval of the Terrain Stockholder Matters by the Required Terrain Stockholder Vote) if a Terrain Triggering Event shall have occurred;

(g) by Terrain (within 10 business days of notice of the applicable the occurrence of a Company Triggering Event and prior to the adoption of this Agreement and the approval of the Contemplated Transactions by the Required Company Stockholder Vote) if a Company Triggering Event shall have occurred;

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(h) by the Company, upon a breach of any representation, warranty, covenant or agreement set forth in this Agreement by Terrain or Merger Sub or if any representation or warranty of Terrain or Merger Sub shall have become inaccurate, in either case, such that the conditions set forth in Section 9.1 or Section 9.2 would not be satisfied as of the time of such breach or as of the time such representation or warranty shall have become inaccurate; provided that the Company is not then in material breach of any representation, warranty, covenant or agreement under this Agreement; provided, further, that if such inaccuracy in Terrain’s or Merger Sub’s representations and warranties or breach by Terrain or Merger Sub is curable by Terrain or Merger Sub, then this Agreement shall not terminate pursuant to this Section 10.1(h) as a result of such particular breach or inaccuracy until the earlier of (i) the expiration of a 30-day period commencing upon delivery of written notice from the Company to Terrain or Merger Sub of such breach or inaccuracy and its intention to terminate pursuant to this Section 10.1(h) and (ii) Terrain or Merger Sub (as applicable) ceasing to exercise commercially reasonable efforts to cure such breach following delivery of written notice from the Company to Terrain or Merger Sub of such breach or inaccuracy and its intention to terminate pursuant to this Section 10.1(h) (it being understood that this Agreement shall not terminate pursuant to this Section 10.1(h) as a result of such particular breach or inaccuracy if such breach by Terrain or Merger Sub is cured prior to such termination becoming effective); or

(i) by Terrain, upon a breach of any representation, warranty, covenant or agreement set forth in this Agreement by the Company or if any representation or warranty of the Company shall have become inaccurate, in either case, such that the conditions set forth in Section 8.1 or Section 8.2 would not be satisfied as of the time of such breach or as of the time such representation or warranty shall have become inaccurate; provided that Terrain is not then in material breach of any representation, warranty, covenant or agreement under this Agreement; provided, further, that if such inaccuracy in the Company’s representations and warranties or breach by the Company is curable by the Company then this Agreement shall not terminate pursuant to this Section 10.1(i) as a result of such particular breach or inaccuracy until the earlier of (i) the expiration of a 30-day period commencing upon delivery of written notice from Terrain to the Company of such breach or inaccuracy and its intention to terminate pursuant to this Section 10.1(i) and (ii) the Company ceasing to exercise commercially reasonable efforts to cure such breach following delivery of written notice from Terrain to the Company of such breach or inaccuracy and its intention to terminate pursuant to this Section 10.1(i) (it being understood that this Agreement shall not terminate pursuant to this Section 10.1(i) as a result of such particular breach or inaccuracy if such breach by the Company is cured prior to such termination becoming effective).

The Party desiring to terminate this Agreement pursuant to this Section 10.1 (other than pursuant to Section 10.1(a)) shall give a notice of such termination to the other Party specifying the provisions hereof pursuant to which such termination is made and the basis therefor described in reasonable detail.

10.2 Effect of Termination. In the event of the termination of this Agreement as provided in Section 10.1, this Agreement shall be of no further force or effect; provided, however, that (a) this Section 10.2, Section 10.3, and Section 11, and the provisions of the Confidentiality Agreement, shall survive the termination of this Agreement and shall remain in full force and effect and (b) the termination of this Agreement and the provisions of Section 10.3 shall not relieve any Party of any liability for fraud or for any willful and material breach of any representation or warranty, or any willful and material breach of any covenant, obligation or other provision contained in this Agreement.

10.3 Expenses; Termination Fees.

(a) Except as set forth in this Section 10.3 and Section 6.10 all fees and expenses incurred in connection with this Agreement and the Contemplated Transactions shall be paid by the Party incurring such expenses, whether or not the Merger is consummated.

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(b) If this Agreement is terminated (i) by the Company pursuant to Section 10.1(f) (or, at the time this Agreement is terminated, the Company had the right to terminate this Agreement pursuant to Section 10.1(f)), or (ii)(A) by either the Company or Terrain pursuant to Section 10.1(b) or Section 10.1(e) or by the Company pursuant to Section 10.1(h), (B) at any time after the date of this Agreement and prior to the Terrain Stockholder Meeting an Acquisition Proposal with respect to Terrain shall have been publicly announced, disclosed or otherwise communicated to the Terrain Board (and shall not have been withdrawn) and (C) within nine (9) months after the date of such termination, Terrain enters into a definitive agreement with respect to a Subsequent Transaction or consummates a Subsequent Transaction, then Terrain shall pay to the Company, within two (2) Business Days after termination (or, in the case of clause (ii), upon the earlier to occur of such entry into a definitive agreement and the consummation of a Subsequent Transaction), a nonrefundable fee in an amount equal to $5,000,000 (the “Company Termination Fee”).

(c) If this Agreement is terminated (i) by Terrain pursuant to Section 10.1(g) (or at the time this Agreement is terminated, Terrain had the right to terminate this Agreement pursuant to Section 10.1(g)), or (ii)(A) by the Company or Terrain pursuant to Section 10.1(b) or by Terrain pursuant to Section 10.1(d), or Section 10.1(i), (B) at any time after the date of this Agreement and before obtaining the Required Company Stockholder Vote an Acquisition Proposal with respect to the Company shall have been publicly announced, disclosed or otherwise communicated to the Company Board (and shall not have been withdrawn) and (C) within nine (9) months after the date of such termination, the Company enters into a definitive agreement with respect to a Subsequent Transaction or consummates a Subsequent Transaction, then the Company shall pay to Terrain, within two (2) Business Days after termination (or, in the case of clause (ii), upon the earlier to occur of such entry into a definitive agreement and the consummation of a Subsequent Transaction), a nonrefundable fee in an amount equal to $7,100,000 (the “Terrain Termination Fee”).

(d) If this Agreement is terminated by the Company pursuant to Section 10.1(f) or Section 10.1(h), Terrain shall reimburse the Company for all reasonable out-of-pocket fees and expenses incurred by the Company in connection with this Agreement and the Contemplated Transactions, up to a maximum of $500,000, by wire transfer of same-day funds within two (2) Business Days following the date on which the Company submits to Terrain true and correct copies of reasonable documentation supporting such expenses (“Company Expense Reimbursement”). Any Company Expense Reimbursement shall be in addition to, and not reduce, the payment of the Company Termination Fee, if applicable.

(e) If this Agreement is terminated by Terrain pursuant to Section 10.1(g) or Section 10.1(i), the Company shall reimburse Terrain for all reasonable out-of-pocket fees and expenses incurred by Terrain in connection with this Agreement and the Contemplated Transactions, up to a maximum of $500,000, by wire transfer of same-day funds within two (2) Business Days following the date on which Terrain submits to the Company true and correct copies of reasonable documentation supporting such expenses (“Terrain Expense Reimbursement”). Any Terrain Expense Reimbursement shall be in addition to, and not reduce, the payment of the Terrain Termination Fee, if applicable.

(f) If either Party fails to pay when due any amount payable by it under this Section 10.3, then (i) such Party shall reimburse the other Party for reasonable costs and expenses (including reasonable fees and disbursements of counsel) incurred in connection with the collection of such overdue amount and the enforcement by the other Party of its rights under this Section 10.3 and (ii) such Party shall pay to the other Party interest on such overdue amount (for the period commencing as of the date such overdue amount was originally required to be paid and ending on the date such overdue amount is actually paid to the other Party in full) at a rate per annum equal to the “prime rate” (as announced by Bank of America or any successor thereto) in effect on the date such overdue amount was originally required to be paid plus three percent.

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(g) The Parties agree that, subject to Section 10.2, the payment of the fees and expenses set forth in this Section 10.3 shall be the sole and exclusive remedy of each Party following a termination of this Agreement under the circumstances described in this Section 10.3, it being understood that in no event shall either Terrain or the Company be required to pay the individual fees or damages payable pursuant to this Section 10.3 on more than one occasion. Subject to Section 10.2, following the payment of the fees and expenses set forth in this Section 10.3 by a Party, (i) such Party shall have no further liability to the other Party in connection with or arising out of this Agreement or the termination thereof, any breach of this Agreement by the other Party giving rise to such termination, or the failure of the Contemplated Transactions to be consummated, (ii) no other Party or their respective Affiliates shall be entitled to bring or maintain any other claim, action or proceeding against such Party or seek to obtain any recovery, judgment or damages of any kind against such Party (or any partner, member, stockholder, director, officer, employee, Subsidiary, Affiliate, agent or other representative of such Party) in connection with or arising out of this Agreement or the termination thereof, any breach by such Party giving rise to such termination or the failure of the Contemplated Transactions to be consummated and (iii) all other Parties and their respective Affiliates shall be precluded from any other remedy against such Party and its Affiliates, at law or in equity or otherwise, in connection with or arising out of this Agreement or the termination thereof, any breach by such Party giving rise to such termination or the failure of the Contemplated Transactions to be consummated. Each of the Parties acknowledges that (x) the agreements contained in this Section 10.3 are an integral part of the Contemplated Transactions, (y) without these agreements, the Parties would not enter into this Agreement and (z) any amount payable pursuant to this Section 10.3 is not a penalty, but rather is liquidated damages in a reasonable amount that will compensate the Parties in the circumstances in which such amount is payable.

Section 11. Miscellaneous Provisions.

11.1 Non-Survival of Representations and Warranties. The representations and warranties of the Company, Terrain and Merger Sub contained in this Agreement or any certificate or instrument delivered pursuant to this Agreement shall terminate at the Effective Time, and only the covenants that by their terms survive the Effective Time and this Section 11 shall survive the Effective Time.

11.2 Amendment. This Agreement may be amended with the approval of the Company, Merger Sub and Terrain at any time (whether before or after the adoption and approval of this Agreement by the Company’s stockholders or before or after obtaining the Required Terrain Stockholder Vote); provided, however, that after any such approval of this Agreement by a Party’s stockholders, no amendment shall be made which by Law requires further approval of such stockholders without the further approval of such stockholders. This Agreement may not be amended except by an instrument in writing signed on behalf of each of the Company, Merger Sub and Terrain.

11.3 Waiver.

(a) Any provision hereof may be waived by the waiving Party solely on such Party’s own behalf, without the consent of any other Party. No failure on the part of any Party to exercise any power, right, privilege or remedy under this Agreement, and no delay on the part of any Party in exercising any power, right, privilege or remedy under this Agreement, shall operate as a waiver of such power, right, privilege or remedy; and no single or partial exercise of any such power, right, privilege or remedy shall preclude any other or further exercise thereof or of any other power, right, privilege or remedy.

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(b) No Party shall be deemed to have waived any claim arising out of this Agreement, or any power, right, privilege or remedy under this Agreement, unless the waiver of such claim, power, right, privilege or remedy is expressly set forth in a written instrument duly executed and delivered on behalf of such Party and any such waiver shall not be applicable or have any effect except in the specific instance in which it is given.

11.4 Entire Agreement; Counterparts; Exchanges by Electronic Transmission. This Agreement and the other schedules, exhibits, certificates, instruments and agreements referred to in this Agreement constitute the entire agreement and supersede all prior agreements and understandings (including the Exclusivity Agreement), both written and oral, among or between any of the Parties with respect to the subject matter hereof and thereof; provided, however, that the Confidentiality Agreement shall not be superseded and shall remain in full force and effect in accordance with its terms. This Agreement may be executed in several counterparts, each of which shall be deemed an original and all of which shall constitute one and the same instrument. The exchange of a fully executed Agreement (in counterparts or otherwise) by all Parties by electronic transmission in .PDF format shall be sufficient to bind the Parties to the terms and conditions of this Agreement.

11.5 Applicable Law; Jurisdiction. This Agreement shall be governed by, and construed in accordance with, the laws of the State of Delaware, regardless of the laws that might otherwise govern under applicable principles of conflicts of laws. In any action or proceeding between any of the Parties arising out of or relating to this Agreement or any of the Contemplated Transactions, each of the Parties: (a) irrevocably and unconditionally consents and submits to the exclusive jurisdiction and venue of the Court of Chancery of the State of Delaware or, to the extent such court does not have subject matter jurisdiction, the Superior Court of the State of Delaware or the United States District Court for the District of Delaware, (b) agrees that all claims in respect of such action or proceeding shall be heard and determined exclusively in accordance with clause (a) of this Section 11.5, (c) waives any objection to laying venue in any such action or proceeding in such courts, (d) waives any objection that such courts are an inconvenient forum or do not have jurisdiction over any Party, (e) agrees that service of process upon such Party in any such action or proceeding shall be effective if notice is given in accordance with Section 11.8 of this Agreement and (f) irrevocably and unconditionally waives the right to trial by jury.

11.6 Assignability. This Agreement shall be binding upon, and shall be enforceable by and inure solely to the benefit of, the Parties and their respective successors and assigns; provided, however, that neither this Agreement nor any of a Party’s rights or obligations hereunder may be assigned or delegated by such Party without the prior written consent of the other Party, and any attempted assignment or delegation of this Agreement or any of such rights or obligations by such Party without the other Party’s prior written consent shall be void and of no effect.

11.7 Notices. All notices and other communications hereunder shall be in writing and shall be deemed to have been duly delivered and received hereunder (a) one (1) Business Day after being sent for next Business Day delivery, fees prepaid, via a reputable international overnight courier service, (b) upon delivery in the case of delivery by hand or (c) on the date delivered in the place of delivery if sent by email (with a written or electronic confirmation of delivery) prior to 6:00 p.m. New York City time, otherwise on the next succeeding Business Day, in each case to the intended recipient as set forth below:

if to Terrain or Merger Sub:

Talaris Therapeutics, Inc.

93 Worcester St.

Wellesley, MA 02481

Attention: Mary Kay Fenton, Chief Financial Officer and Interim Chief Executive Officer and President

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Email: [Omitted]

with a copy to (which shall not constitute notice):

Goodwin Procter LLP

100 Northern Avenue

Boston, MA 02210

Attention: Richard Hoffman

John T. Haggerty

Tevia K. Pollard

Email: ***@***

   ***@***

   ***@***

if to the Company:

Tourmaline Bio, Inc.

27 West 24^th Street, Suite 702

New York, New York 10010

Attention: Sandeep Kulkarni, Chief Executive Officer, and Brad Middlekauff, Chief Business Officer

with a copy to (which shall not constitute notice):

Cooley LLP

55 Hudson Yards

New York, NY 10001-2157

Attention:       Brandon W. Fenn

 William Sorabella

Email:             ***@***

  ***@***

11.8 Cooperation. Each Party agrees to cooperate fully with the other Party and to execute and deliver such further documents, certificates, agreements and instruments and to take such other actions as may be reasonably requested by the other Party to evidence or reflect the Contemplated Transactions and to carry out the intent and purposes of this Agreement.

11.9 Severability. Any term or provision of this Agreement that is invalid or unenforceable in any situation in any jurisdiction shall not affect the validity or enforceability of the remaining terms and provisions of this Agreement or the validity or enforceability of the offending term or provision in any other situation or in any other jurisdiction. If a final judgment of a court of competent jurisdiction declares that any term or provision of this Agreement is invalid or unenforceable, the Parties agree that the court making such determination shall have the power to limit such term or provision, to delete specific words or phrases or to replace such term or provision with a term or provision that is valid and enforceable and that comes closest to expressing the intention of the invalid or unenforceable term or provision, and this Agreement shall be valid and enforceable as so modified. In the event such court does not exercise the power granted to it in the prior sentence, the Parties agree to replace such invalid or unenforceable term or provision with a valid and enforceable term or provision that will achieve, to the extent possible, the economic, business and other purposes of such invalid or unenforceable term or provision.

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11.10 Other Remedies; Specific Performance. Except as otherwise provided herein, any and all remedies herein expressly conferred upon a Party will be deemed cumulative with and not exclusive of any other remedy conferred hereby, or by law or equity upon such Party, and the exercise by a Party of any one remedy will not preclude the exercise of any other remedy. The Parties agree that irreparable damage for which monetary damages, even if available, would not be an adequate remedy, would occur in the event that any of the provisions of this Agreement were not performed in accordance with their specific terms or were otherwise breached. It is accordingly agreed that the Parties shall be entitled to an injunction or injunctions to prevent breaches of this Agreement and to enforce specifically the terms and provisions hereof in any court of the United States or any state having jurisdiction, this being in addition to any other remedy to which they are entitled at law or in equity, and each of the Parties waives any bond, surety or other security that might be required of any other Party with respect thereto. Each of the Parties further agrees that it will not oppose the granting of an injunction, specific performance or other equitable relief on the basis that any other Party has an adequate remedy at law or that any award of specific performance is not an appropriate remedy for any reason at law or in equity.

11.11 No Third Party Beneficiaries. Nothing in this Agreement, express or implied, is intended to or shall confer upon any Person (other than the Parties and the D&O Indemnified Parties to the extent of their respective rights pursuant to Section 6.13) any right, benefit or remedy of any nature whatsoever under or by reason of this Agreement.

11.12 Representation. Without otherwise limiting the D&O Indemnified Parties’ rights with regard to the right to counsel, and notwithstanding anything to the contrary in any indemnification agreements Terrain has entered into, following the Effective Time, the D&O Indemnified Parties shall be entitled to continue to retain Goodwin Procter LLP or such other counsel selected by such D&O Indemnified Parties prior to the Effective Time to defend any Transaction Litigation on behalf of, and to the extent such Transaction Litigation is against, the D&O Indemnified Parties.

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IN WITNESS WHEREOF, the Parties have caused this Agreement to be executed as of the date first above written.

Exhibit A

TALARIS THERAPEUTICS, INC.

SUPPORT AGREEMENT

THIS SUPPORT AGREEMENT (this “Agreement”), dated as of June     , 2023, is made by and among Talaris Therapeutics, Inc., a Delaware corporation (“Terrain”), Tourmaline Bio, Inc., a Delaware corporation (the “Company”), and the undersigned holders (each a “Stockholder”) of shares of capital stock (the “Shares”) of Terrain.

WHEREAS, Terrain, Terrain Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Terrain (“Merger Sub”), and the Company, have entered into an Agreement and Plan of Merger, dated of even date herewith (the “Merger Agreement”), providing for the merger of Merger Sub with and into the Company (the “Merger”);

WHEREAS, each Stockholder beneficially owns and has sole or shared voting power with respect to the number of Shares, and/or holds Terrain Options, Terrain RSUs and/or Terrain SARs to acquire the number of Shares indicated opposite such Stockholder’s name on Schedule 1 attached hereto;

WHEREAS, as an inducement and a condition to the willingness of the Company to enter into the Merger Agreement, each Stockholder has agreed to enter into and perform this Agreement; and

WHEREAS, all capitalized terms used in this Agreement without definition herein shall have the meanings ascribed to them in the Merger Agreement.

NOW, THEREFORE, in consideration of, and as a condition to, the Company’s entering into the Merger Agreement, each Stockholder, Terrain and the Company agree as follows:

1.    Agreement to Vote Shares. Each Stockholder agrees that, prior to the Expiration Date (as defined in Section 2 below), at any meeting of the stockholders of Terrain or any adjournment or postponement thereof, or in connection with any written consent of the stockholders of Terrain, with respect to the Merger, the Merger Agreement or any Acquisition Proposal, such Stockholder shall:

(a)    appear at such meeting or otherwise cause the Shares and any New Shares (as defined in Section 3 below) to be counted as present thereat for purposes of calculating a quorum;

(b)    from and after the date hereof until the Expiration Date, vote (or cause to be voted), or deliver a written consent (or cause a written consent to be delivered) covering all of the Shares and any New Shares that Stockholder shall be entitled to so vote: (i) in favor of the Terrain Stockholder Matters and the Equity Plan Proposals; (ii) against any Acquisition Proposal, or any agreement, transaction, matter or action that is intended to, or would reasonably be expected to, impede, interfere with, delay, postpone, discourage or materially and adversely affect the consummation of the Merger and any of the other Contemplated Transactions; (iii) against any action or agreement that would result in a

breach of any representation, warranty, covenant or obligation of Terrain in the Merger Agreement; (iv) against each of the following actions (other than the Merger and the other Contemplated Transactions): (A) any extraordinary corporate transaction, such as a merger, consolidation, amalgamation, plan or scheme of arrangement, share exchange or other business combination involving Terrain, (B) any sale, lease, sublease, license, sublicense or transfer of a material portion of the assets of Terrain that would reasonably be expected to impede, interfere with, delay, postpone, discourage or materially and adversely affect the consummation of the Merger and any of the other Contemplated Transactions, (C) any reorganization, recapitalization, dissolution or liquidation of any Acquired Company, (D) any amendment to the Company’s Organizational Documents, which amendment would reasonably be expected to impede, interfere with, delay, postpone, discourage or materially and adversely affect the consummation of the Merger and any of the other Contemplated Transactions, and (E) any material change in the capitalization of Terrain or Terrain’s corporate structure; (v) in favor of an amendment of Terrain’s Organizational Documents to adopt an exculpation provision for Terrain’s officers; and (vi) to approve any proposal to adjourn or postpone the meeting to a later date, if there are not sufficient votes for the approval of the Terrain Stockholder Matters. Stockholder shall not take or commit or agree to take any action inconsistent with the foregoing.

2.    Expiration Date. As used in this Agreement, the term “Expiration Date” shall mean the earlier to occur of (a) the Effective Time, (b) such date and time as the Merger Agreement shall be terminated pursuant to Section 10 thereof or otherwise, (c) such date and time as a Terrain Board Adverse Recommendation Change is made, or (d) the mutual written agreement of the parties to terminate this Agreement.

3.    Additional Acquisitions. Each Stockholder agrees that any shares of capital stock or other equity securities of Terrain that such Stockholder acquires or with respect to which such Stockholder otherwise acquires sole or shared voting power (including any proxy) after the execution of this Agreement and prior to the Expiration Date, whether by the exercise of any Terrain Options or Terrain SARs, or the settlement of Terrain RSUs or otherwise, including, without limitation, by gift, succession, in the event of a stock split or as a dividend or distribution of any Shares (“New Shares”), shall be subject to the terms and conditions of this Agreement to the same extent as if they constituted the Shares.

4.    Agreement to Retain Shares. From and after the date hereof until the Expiration Date, each Stockholder shall not, directly or indirectly, (a) sell, assign, transfer, tender, or otherwise dispose of (including, without limitation, by the creation of any Liens (as defined in Section 5(c) below)) any Shares or any New Shares, (b) deposit any Shares or New Shares into a voting trust or enter into a voting agreement or similar arrangement with respect to such Shares or New Shares or grant any proxy or power of attorney with respect thereto (other than this Agreement), (c) enter into any Contract, option, commitment or other arrangement or understanding with respect to the direct or indirect sale, transfer, assignment or other disposition of (including, without limitation, by the creation of any Liens) any Shares or New Shares, or (d) take any action that would make any representation or warranty of such Stockholder contained herein untrue or incorrect or have the effect of preventing or disabling such Stockholder from performing such Stockholder’s obligations under this Agreement. Any action taken in violation

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of the foregoing sentence shall be null and void ab initio. Notwithstanding the foregoing, each Stockholder may make (1) transfers by will or by operation of Law or other transfers for estate-planning purposes, in which case this Agreement shall bind the transferee, (2) with respect to such Stockholder’s Terrain Options which expire on or prior to the Expiration Date, transfers, sale, or other disposition of Shares to Terrain, or in broker-assisted cashless exercises, as payment for the (i) exercise price of such Stockholder’s Terrain Options and (ii) taxes applicable to the exercise of such Stockholder’s Terrain Options or Terrain SARs, (3) with respect to Stockholder’s Terrain RSUs, (i) transfers for the net settlement of Stockholder’s Terrain RSUs settled in Shares (to pay any tax withholding obligations) or (ii) transfers for receipt upon settlement of such Stockholder’s Terrain RSUs, and the sale of a sufficient number of such Shares acquired upon settlement of such securities as would generate sales proceeds sufficient to pay the aggregate taxes payable by such Stockholder as a result of such settlement, (4) if such Stockholder is a partnership or limited liability company, a transfer to one or more partners or members of such Stockholder or to an Affiliated corporation, trust or other Entity under common control with such Stockholder, or if such Stockholder is a trust, a transfer to a beneficiary, provided that in each such case the applicable transferee has signed a voting agreement that is reasonably acceptable to the Company, (5) transfers to another holder of the capital stock of the Company that has signed a voting agreement that is reasonably acceptable to the Company, and (6) transfers, sales or other dispositions as the Company may otherwise agree in writing in its sole discretion. If any voluntary or involuntary transfer of any Shares covered hereby shall occur (including a transfer or disposition permitted by Section 4(1) through Section 4(6), sale by a Stockholder’s trustee in bankruptcy, or a sale to a purchaser at any creditor’s or court sale), the transferee (which term, as used herein, shall include any and all transferees and subsequent transferees of the initial transferee) shall take and hold such Shares subject to all of the restrictions, liabilities and rights under this Agreement, which shall continue in full force and effect, notwithstanding that such transferee is not a Stockholder and has not executed a counterpart hereof or joinder hereto.

5.    Representations and Warranties of Stockholder. Each Stockholder hereby, severally but not jointly, represents and warrants to Terrain and the Company as follows:

(a)    If such Stockholder is an Entity: (i) such Stockholder is duly organized, validly existing and in good standing under the laws of the jurisdiction in which it is incorporated, organized or constituted, (ii) such Stockholder has all necessary power and authority to execute and deliver this Agreement, to perform such Stockholder’s obligations hereunder and to consummate the transactions contemplated hereby, and (iii) the execution and delivery of this Agreement, performance of such Stockholder’s obligations hereunder and the consummation of the transactions contemplated hereby by such Stockholder have been duly authorized by all necessary action on the part of such Stockholder and no other proceedings on the part of such Stockholder are necessary to authorize this Agreement, or to consummate the transactions contemplated hereby. If such Stockholder is an individual, such Stockholder has the legal capacity to execute and deliver this Agreement, to perform such Stockholder’s obligations hereunder and to consummate the transactions contemplated hereby;

(b)    this Agreement has been duly executed and delivered by or on behalf of such Stockholder and, to such Stockholder’s knowledge and assuming this Agreement constitutes a valid and binding agreement of the Company and Terrain, constitutes a valid

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and binding agreement with respect to such Stockholder, enforceable against such Stockholder in accordance with its terms, except as enforcement may be limited by general principles of equity whether applied in a court of Law or a court of equity and by bankruptcy, insolvency and similar Laws affecting creditors’ rights and remedies generally;

(c)    such Stockholder beneficially owns the number of Shares indicated opposite such Stockholder’s name on Schedule 1, which constitute all of the Shares owned by the Stockholder as of the date hereof. Such Stockholder will own any New Shares, free and clear of any liens, claims, charges or other encumbrances or restrictions of any kind whatsoever (“Liens”), and has sole or shared, and otherwise unrestricted, voting power with respect to such Shares or New Shares and none of the Shares or New Shares is subject to any voting trust or other agreement, arrangement or restriction with respect to the voting of the Shares or the New Shares, except as contemplated by this Agreement;

(d)    to the knowledge of such Stockholder, the execution and delivery of this Agreement by such Stockholder does not, and the performance by such Stockholder of his, her or its obligations hereunder and the compliance by such Stockholder with any provisions hereof will not, violate or conflict with, result in a material breach of or constitute a default (or an event that with notice or lapse of time or both would become a material default) under, or give to others any rights of termination, amendment, acceleration or cancellation of, or result in the creation of any Liens on any Shares or New Shares pursuant to, any agreement, instrument, note, bond, mortgage, Contract, lease, license, permit or other obligation or any order, arbitration award, judgment or decree to which such Stockholder is a party or by which such Stockholder is bound, or any Law, statute, rule or regulation to which such Stockholder is subject or, in the event that such Stockholder is a corporation, partnership, trust or other Entity, any bylaw or other Organizational Document of such Stockholder; except for any of the foregoing as would not reasonably be expected to prevent or delay the performance by such Stockholder of his, her or its obligations under this Agreement in any material respect;

(e)    the execution and delivery of this Agreement by such Stockholder does not, and the performance of this Agreement by such Stockholder does not and will not, require any consent, approval, authorization or permit of, or filing with or notification to, any Governmental Authority or regulatory authority by such Stockholder except for applicable requirements, if any, of the Exchange Act, and except where the failure to obtain such consents, approvals, authorizations or permits, or to make such filings or notifications, would not prevent or delay the performance by such Stockholder of his, her or its obligations under this Agreement in any material respect;

(f)    no investment banker, broker, finder or other intermediary is entitled to a fee or commission from Terrain or the Company in respect of this Agreement based upon any Contract made by or on behalf of such Stockholder; and

(g)    as of the date of this Agreement, there is no Legal Proceeding pending or, to the knowledge of such Stockholder, threatened against such Stockholder that would reasonably be expected to prevent or delay the performance by such Stockholder of his, her or its obligations under this Agreement in any material respect.

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6.    Irrevocable Proxy. Subject to the penultimate sentence of this Section 6, by execution of this Agreement, each Stockholder does hereby appoint the Company and any of its designees with full power of substitution and resubstitution, as such Stockholder’s true and lawful attorney and irrevocable proxy, to the fullest extent of such Stockholder’s rights with respect to the Shares, to vote and exercise all voting and related rights, including the right to sign such Stockholder’s name (solely in its capacity as a stockholder) to any Stockholder consent, if Stockholder is unable to perform or otherwise does not perform his, her or its obligations under this Agreement, with respect to such Shares solely with respect to the matters set forth in Section 1 hereof. Each Stockholder intends this proxy to be irrevocable and coupled with an interest hereunder until the Expiration Date, hereby revokes any proxy previously granted by such Stockholder with respect to the Shares and represents that none of such previously-granted proxies are irrevocable. The Stockholder hereby affirms that the proxy set forth in this Section 6 is given in connection with, and granted in consideration of, and as an inducement to the Company, Terrain and Merger Sub to enter into the Merger Agreement and that such proxy is given to secure the obligations of the Stockholder under Section 1. The irrevocable proxy and power of attorney granted herein shall survive the death or incapacity of such Stockholder and the obligations of such Stockholder shall be binding on such Stockholder’s heirs, personal representatives, successors, transferees and assigns. Each Stockholder hereby agrees not to grant any subsequent powers of attorney or proxies with respect to any Shares with respect to the matters set forth in Section 1 until after the Expiration Date. With respect to any Shares that are owned beneficially by the Stockholder but are not held of record by the Stockholder (other than shares beneficially owned by the Stockholder that are held in the name of a bank, broker or nominee), the Stockholder shall take all action necessary to cause the record holder of such Shares to grant the irrevocable proxy and take all other actions provided for in this Section 6 with respect to such Shares. Notwithstanding anything contained herein to the contrary, this irrevocable proxy shall automatically terminate upon the Expiration Date.

7.    No Solicitation. From and after the date hereof until the Expiration Date, each Stockholder shall not (a) solicit, initiate or knowingly encourage, induce or facilitate the communication, making, submission or announcement of any Acquisition Proposal or Acquisition Inquiry regarding Terrain or take any action that could reasonably be expected to lead to an Acquisition Proposal or Acquisition Inquiry regarding Terrain, (b) furnish any non-public information regarding Terrain to any Person in connection with or in response to an Acquisition Proposal or Acquisition Inquiry regarding Terrain, (c) engage in discussions or negotiations with any Person with respect to any Acquisition Proposal or Acquisition Inquiry regarding Terrain, (d) approve, endorse or recommend any Acquisition Proposal (subject to Section 6.3 of the Merger Agreement), (e) execute or enter into any letter of intent or any Contract contemplating or otherwise relating to any Acquisition Transaction regarding Terrain (subject to Section 5.4 of the Merger Agreement), (f) take any action that could reasonably be expected to lead to an Acquisition Proposal or Acquisition Inquiry regarding Terrain, (g) initiate a stockholders’ vote or action by consent of the Terrain’s stockholders with respect to an Acquisition Proposal regarding Terrain, (h) except by reason of this Agreement, become a member of a “group” (as such term is defined in Section 13(d) of the Exchange Act) with respect to any voting securities of Terrain that takes any action in support of an Acquisition Proposal regarding Terrain or (i) propose or agree to do

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any of the foregoing. In the event that such Stockholder is a corporation, partnership, trust or other Entity, it shall not permit any of its Subsidiaries or Affiliates to, nor shall it authorize any officer, director or representative of such Stockholder, or any of its Subsidiaries or Affiliates to, undertake any of the actions contemplated by this Section 7.

8.    No Legal Actions. Each Stockholder will not in its capacity as a stockholder of Terrain bring, commence, institute, maintain, prosecute or voluntarily aid any Legal Proceeding which (i) challenges the validity or seeks to enjoin the operation of any provision of this Agreement or (ii) alleges that the execution and delivery of this Agreement by such Stockholder, either alone or together with the other voting agreements and proxies to be delivered in connection with the execution of the Merger Agreement, or the approval of the Merger Agreement and the Contemplated Transactions by the Terrain Board, constitutes a breach of any fiduciary duty of the Terrain Board or any member thereof.

9.    Other Remedies; Specific Performance. Except as otherwise provided herein, any and all remedies herein expressly conferred upon a party will be deemed cumulative with and not exclusive of any other remedy conferred hereby, or by Law or equity upon such party, and the exercise by a party of any one remedy will not preclude the exercise of any other remedy. The parties agree that irreparable damage for which monetary damages, even if available, would not be an adequate remedy, would occur in the event that any of the provisions of this Agreement were not performed in accordance with their specific terms or were otherwise breached. It is accordingly agreed that the parties shall be entitled to an injunction or injunctions to prevent breaches of this Agreement and to enforce specifically the terms and provisions hereof in any court of the United States or any state having jurisdiction, this being in addition to any other remedy to which they are entitled at Law or in equity, and each of the parties waives any bond, surety or other security that might be required of any other party with respect thereto. Each of the parties further agrees that it will not oppose the granting of an injunction, specific performance or other equitable relief on the basis that any other party has an adequate remedy at Law or that any award of specific performance is not an appropriate remedy for any reason at Law or in equity.

10.    Directors and Officers. This Agreement shall apply to each Stockholder solely in such Stockholder’s capacity as a stockholder of Terrain and/or holder of Terrain Options, Terrain RSUs and/or Terrain SARs and not in such Stockholder’s capacity as a director, officer or employee of Terrain or any of its Subsidiaries or in such Stockholder’s capacity as a trustee or fiduciary of any employee benefit plan or trust. Notwithstanding any provision of this Agreement to the contrary, nothing in this Agreement shall (or require Stockholder to attempt to) limit or restrict a director and/or officer of Terrain in the exercise of his or her fiduciary duties consistent with the terms of the Merger Agreement as a director and/or officer of Terrain or in his or her capacity as a trustee or fiduciary of any employee benefit plan or trust or prevent or be construed to create any obligation on the part of any director and/or officer of Terrain or any trustee or fiduciary of any employee benefit plan or trust from taking any action in his or her capacity as such director, officer, trustee and/or fiduciary.

11.    No Ownership Interest. Nothing contained in this Agreement shall be deemed to vest in the Company any direct or indirect ownership or incidence of ownership of or with respect to any Shares. All rights, ownership and economic benefits of and relating to the Shares shall remain vested in and belong to such Stockholder, and the Company does not have authority to

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manage, direct, superintend, restrict, regulate, govern, or administer any of the policies or operations of Terrain or exercise any power or authority to direct such Stockholder in the voting of any of the Shares, except as otherwise provided herein.

12.    Termination. This Agreement shall terminate and shall have no further force or effect as of the Expiration Date. Notwithstanding the foregoing, upon termination or expiration of this Agreement, no party shall have any further obligations or liabilities under this Agreement; provided, however, nothing set forth in this Section 12 or elsewhere in this Agreement shall relieve any party from liability for any fraud or for any willful and material breach of this Agreement prior to termination hereof.

13.    Further Assurances. Each Stockholder shall, from time to time, execute and deliver, or cause to be executed and delivered, such additional or further consents, documents and other instruments as the Company or Terrain may reasonably request for the purpose of effectively carrying out the transactions contemplated by this Agreement and the Contemplated Transactions.

14.    Disclosure. Each Stockholder hereby agrees that Terrain and the Company may publish and disclose in the Registration Statement, any prospectus filed with any regulatory authority in connection with the Contemplated Transactions and any related documents filed with such regulatory authority and as otherwise required by Law, such Stockholder’s identity and ownership of Shares and the nature of such Stockholder’s commitments, arrangements and understandings under this Agreement and may further file this Agreement as an exhibit to the Registration Statement or prospectus or in any other filing made by Terrain or the Company as required by Law or the terms of the Merger Agreement, including with the SEC or other regulatory authority, relating to the Contemplated Transactions, all subject to prior review and an opportunity to comment by Stockholder’s counsel. Prior to the Closing, each Stockholder shall not, and shall use its reasonable best efforts to cause its representatives not to, directly or indirectly, make any press release, public announcement or other public communication that criticizes or disparages this Agreement or the Merger Agreement or any of the Contemplated Transactions, without the prior written consent of Terrain and the Company, provided that the foregoing shall not limit or affect any actions taken by such Stockholder (or any affiliated officer or director of such Stockholder) that would be permitted to be taken by such Stockholder, Terrain or the Company pursuant to the Merger Agreement; provided, further, that the foregoing shall not effect any actions of Stockholder the prohibition of which would be prohibited under applicable Law.

15.    Notice. All notices and other communications hereunder shall be in writing and shall be deemed to have been duly delivered and received hereunder (a) one (1) Business Day after being sent for next Business Day delivery, fees prepaid, via a reputable international overnight courier service, (b) upon delivery in the case of delivery by hand or (c) on the date delivered in the place of delivery if sent by email (with a written or electronic confirmation of delivery) prior to 6:00 p.m. New York City time, otherwise on the next succeeding Business Day, in each case to the intended recipient: (i) to the Company or Terrain, as applicable, in accordance with Section 11.7 of the Merger Agreement, and (ii) to each Stockholder at his, her or its address or email address (providing confirmation of transmission) set forth on Schedule 1 attached hereto (or at such other address for a party as shall be specified by like notice).

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16.    Severability. Any term or provision of this Agreement that is invalid or unenforceable in any situation in any jurisdiction shall not affect the validity or enforceability of the remaining terms and provisions of this Agreement or the validity or enforceability of the offending term or provision in any other situation or in any other jurisdiction. If a final judgment of a court of competent jurisdiction declares that any term or provision of this Agreement is invalid or unenforceable, the parties hereto agree that the court making such determination shall have the power to limit such term or provision, to delete specific words or phrases or to replace such term or provision with a term or provision that is valid and enforceable and that comes closest to expressing the intention of the invalid or unenforceable term or provision, and this Agreement shall be valid and enforceable as so modified. In the event such court does not exercise the power granted to it in the prior sentence, the parties hereto agree to replace such invalid or unenforceable term or provision with a valid and enforceable term or provision that will achieve, to the extent possible, the economic, business and other purposes of such invalid or unenforceable term or provision.

17.    Assignability. This Agreement shall be binding upon, and shall be enforceable by and inure solely to the benefit of, the Parties and their respective successors and assigns; provided, however, that neither this Agreement nor any of a Party’s rights or obligations hereunder may be assigned or delegated by such Party without the prior written consent of the other Party, and any attempted assignment or delegation of this Agreement or any of such rights or obligations by such Party without the other Party’s prior written consent shall be void and of no effect.

18.    No Waivers. No waivers of any breach of this Agreement extended by the Company or Terrain to such Stockholder shall be construed as a waiver of any rights or remedies of the Company or Terrain, as applicable, with respect to any other stockholder of Terrain who has executed an agreement substantially in the form of this Agreement with respect to Shares held or subsequently held by such stockholder or with respect to any subsequent breach of Stockholder or any other such stockholder of Terrain. No waiver of any provisions hereof by any party shall be deemed a waiver of any other provisions hereof by any such party, nor shall any such waiver be deemed a continuing waiver of any provision hereof by such party.

19.    Applicable Law; Jurisdiction. This Agreement shall be governed by, and construed in accordance with, the Laws of the state of Delaware, regardless of the Laws that might otherwise govern under applicable principles of conflicts of Laws. In any action or Legal Proceeding between any of the parties arising out of or relating to this Agreement, each of the parties: (i) irrevocably and unconditionally consents and submits to the exclusive jurisdiction and venue of the Court of Chancery of the state of Delaware or to the extent such court does not have subject matter jurisdiction, the Superior Court of the State of Delaware or the United States District Court for the District of Delaware, (ii) agrees that all claims in respect of such action or Legal Proceeding shall be heard and determined exclusively in accordance with clause (i) of this Section 19, (iii) waives any objection to laying venue in any such action or Legal Proceeding in such courts, (iv) waives any objection that such courts are an inconvenient forum or do not have jurisdiction over any party, and (v) agrees that service of process upon such party in any such action or Legal Proceeding shall be effective if notice is given in accordance with Section 15 of this Agreement.

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20.    Waiver of Jury Trial. The parties hereto hereby waive any right to trial by jury with respect to any action or Legal Proceeding related to or arising out of this Agreement, any document executed in connection herewith and the matters contemplated hereby and thereby.

21.    No Agreement Until Executed. Irrespective of negotiations among the parties or the exchanging of drafts of this Agreement, this Agreement shall not constitute or be deemed to evidence a Contract, agreement, arrangement or understanding between the parties hereto unless and until (a) the Terrain Board has approved, for purposes of any applicable anti-takeover Laws and regulations and any applicable provision of the certificate of incorporation of Terrain, the Merger Agreement and the Contemplated Transactions, (b) the Merger Agreement is executed by all parties thereto, and (c) this Agreement is executed by all parties hereto.

22.    Entire Agreement; Counterparts; Exchanges by Electronic Transmission. This Agreement and the other agreements referred to in this Agreement constitute the entire agreement and supersede all prior agreements and understandings, both written and oral, among or between any of the parties with respect to the subject matter hereof and thereof. This Agreement may be executed in several counterparts, each of which shall be deemed an original and all of which shall constitute one and the same instrument. The exchange of a fully executed Agreement (in counterparts or otherwise) by all parties by electronic transmission via “.pdf” shall be sufficient to bind the parties to the terms and conditions of this Agreement.

23.    Amendment. This Agreement may not be amended, supplemented or modified, and no provisions hereof may be modified or waived, except by an instrument in writing signed on behalf of each party hereto; provided, however, that the rights or obligations of any Stockholder may be waived, amended or otherwise modified in a writing signed by Terrain, the Company and such Stockholder.

24.    Fees and Expenses. Except as otherwise specifically provided herein, the Merger Agreement or any other agreement contemplated by the Merger Agreement to which a party hereto is a party, each party hereto shall bear its own expenses in connection with this Agreement and the transactions contemplated hereby.

25.    Voluntary Execution of Agreement. This Agreement is executed voluntarily and without any duress or undue influence on the part or behalf of the parties. Each of the parties hereby acknowledges, represents and warrants that (i) it has read and fully understood the Merger Agreement, including the provisions relating to the payment and allocation of the consideration to be paid to stockholders of Terrain as well as holders of Terrain Options, Terrain SARs and Terrain RSUs, this Agreement and the implications and consequences thereof; (ii) it has been represented in the preparation, negotiation, and execution of this Agreement by legal counsel of its own choice, or it has made a voluntary and informed decision to decline to seek such counsel; and (iii) it is fully aware of the legal and binding effect of this Agreement. The Stockholder has had an opportunity to review with its own tax advisors the tax consequences of the Merger and the Contemplated Transactions. The Stockholder understands that it must rely solely on its advisors and not on any statements or representations made by Terrain, the Company or any of their respective agents or representatives. The Stockholder understands that such Stockholder (and not Terrain, the Company or the Surviving Corporation) shall be responsible for such Stockholder’s tax liability that may arise as a result of the Merger or the Contemplated Transactions. The

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Stockholder understands and acknowledges that Terrain, Parent and Merger Sub are entering into the Merger Agreement in reliance upon the Stockholder’s execution, delivery and performance of this Agreement.

26.    Definition of Merger Agreement. For purposes of this Agreement, the term “Merger Agreement” refers to such agreement as amended or modified, solely to the extent such amendments or modifications (a) do not (i) change the form of consideration or (ii) change the Exchange Ratio in a manner adverse to such Stockholder, or (b) have been agreed to in writing by such Stockholder.

27.    Construction.

(a)    For purposes of this Agreement, whenever the context requires: the singular number shall include the plural, and vice versa; the masculine gender shall include the feminine and neuter genders; the feminine gender shall include the masculine and neuter genders; and the neuter gender shall include masculine and feminine genders.

(b)    The parties hereto agree that any rule of construction to the effect that ambiguities are to be resolved against the drafting party shall not be applied in the construction or interpretation of this Agreement.

(c)    As used in this Agreement, the words “include” and “including,” and variations thereof, shall not be deemed to be terms of limitation, but rather shall be deemed to be followed by the words “without limitation.”

(d)    Except as otherwise indicated, all references in this Agreement to “Sections,” and “Schedules” are intended to refer to Sections of this Agreement and Schedules to this Agreement, respectively.

(e)    The underlined headings contained in this Agreement are for convenience of reference only, shall not be deemed to be a part of this Agreement and shall not be referred to in connection with the construction or interpretation of this Agreement.

[Remainder of Page has Intentionally Been Left Blank]

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EXECUTED as of the date first above written.

Signature Page to Terrain Support Agreement

EXECUTED as of the date first above written.

Signature Page to Terrain Support Agreement

SCHEDULE 1

Exhibit B

TOURMALINE BIO, INC.

SUPPORT AGREEMENT

THIS SUPPORT AGREEMENT (this “Agreement”), dated as of June     , 2023, is made by and among Talaris Therapeutics, Inc., a Delaware corporation (“Terrain”), Tourmaline Bio, Inc., a Delaware corporation (the “Company”), and the undersigned holders (each a “Stockholder”) of shares of capital stock (the “Shares”) of the Company.

WHEREAS, Terrain, Terrain Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Terrain (“Merger Sub”), and the Company, have entered into an Agreement and Plan of Merger, dated of even date herewith (the “Merger Agreement”), providing for the merger of Merger Sub with and into the Company (the “Merger”);

WHEREAS, each Stockholder beneficially owns and has sole or shared voting power with respect to the number of Shares and/or and holds Company Options to acquire the number of Shares indicated opposite such Stockholder’s name on Schedule 1 attached hereto;

WHEREAS, as an inducement and a condition to the willingness of Terrain to enter into the Merger Agreement, each Stockholder has agreed to enter into and perform this Agreement; and

WHEREAS, all capitalized terms used in this Agreement without definition herein shall have the meanings ascribed to them in the Merger Agreement.

NOW, THEREFORE, in consideration of, and as a condition to, Terrain entering into the Merger Agreement, each Stockholder, Terrain and the Company agree as follows:

1.    Agreement to Vote Shares. Each Stockholder agrees that, prior to the Expiration Date (as defined in Section 2 below), at any meeting of the stockholders of the Company or any adjournment or postponement thereof, or in connection with any written consent of the stockholders (or any class or series of stockholders, as applicable) of the Company, with respect to the Merger, the Merger Agreement or any Acquisition Proposal, such Stockholder shall:

(a)    appear at such meeting or otherwise cause the Shares and any New Shares (as defined in Section 3 below) to be counted as present thereat for purposes of calculating a quorum;

(b)    from and after the date hereof until the Expiration Date, vote (or cause to be voted), or deliver a written consent (or cause a written consent to be delivered) covering all of the Shares and any New Shares that Stockholder shall be entitled to so vote: (i) in favor of the adoption of the Merger Agreement and approval of the Merger, the other Contemplated Transactions and any matter that could reasonably be expected to facilitate the Merger and the Contemplated Transactions; (ii) against any action or agreement that would result in a breach of any representation, warranty, covenant or obligation of the Company in the Merger Agreement; (iii) against any Acquisition Proposal, or any

agreement, transaction, matter or action that is intended to, or would reasonably be expected to, impede, interfere with, delay, postpone, discourage or materially and adversely affect the consummation of the Merger and any of the other Contemplated Transactions; (iv) to approve any proposal to adjourn or postpone the meeting to a later date, if there are not sufficient votes for the adoption of the Merger Agreement on the date on which such meeting is held; and (v) to the extent applicable, in favor of an election to convert all of the Company Preferred Stock held by Stockholder into Company Common Stock. Stockholder shall not take or commit or agree to take any action inconsistent with the foregoing.

2.    Expiration Date. As used in this Agreement, the term “Expiration Date” shall mean the earlier to occur of (a) the Effective Time, (b) such date and time as the Merger Agreement shall be terminated pursuant to Section 10 thereof or otherwise, (c) such date and time as a Company Board Adverse Recommendation Change is made, or (d) the mutual written agreement of the parties to terminate this Agreement.

3.    Additional Purchases. Each Stockholder agrees that any shares of capital stock or other equity securities of the Company that such Stockholder purchases or with respect to which such Stockholder otherwise acquires sole or shared voting power (including any proxy) after the execution of this Agreement and prior to the Expiration Date, whether by the exercise of any Company Options or otherwise, including, without limitation, by gift, succession, in the event of a stock split or as a dividend or distribution of any Shares (“New Shares”), shall be subject to the terms and conditions of this Agreement to the same extent as if they constituted the Shares.

4.    Agreement to Retain Shares. From and after the date hereof until the Expiration Date, each Stockholder shall not, directly or indirectly, (a) sell, assign, transfer, tender, or otherwise dispose of (including, without limitation, by the creation of any Liens (as defined in Section 5(d) below)) any Shares or any New Shares, (b) deposit any Shares or New Shares into a voting trust or enter into a voting agreement or similar arrangement with respect to such Shares or New Shares or grant any proxy or power of attorney with respect thereto (other than this Agreement), (c) enter into any Contract, option, commitment or other arrangement or understanding with respect to the direct or indirect sale, transfer, assignment or other disposition of (including, without limitation, by the creation of any Liens) any Shares or New Shares, or (d) take any action that would make any representation or warranty of such Stockholder contained herein untrue or incorrect or have the effect of preventing or disabling such Stockholder from performing such Stockholder’s obligations under this Agreement. Notwithstanding the foregoing, each Stockholder may (1) make transfers by will or by operation of Law or other transfers for estate-planning purposes, in which case this Agreement shall bind the transferee, (2) with respect to such Stockholder’s Company Options which expire on or prior to the Expiration Date, transfer, sell, or other dispose of Shares to the Company, or in broker-assisted cashless exercises, as payment for the (i) exercise price of such Stockholder’s Company Options and (ii) taxes applicable to the exercise of such Stockholder’s Company Options, (3) if such Stockholder is a partnership or limited liability company, a transfer to one or more partners or members of such Stockholder or to an Affiliated corporation, trust or other Entity under common control with such Stockholder, or if such Stockholder is a trust, a transfer to a beneficiary, provided that in each such case the applicable transferee has signed a voting agreement in substantially the form hereof, (4) transfers

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to another holder of the capital stock of the Company that has signed a voting agreement in substantially the form hereof, and (5) transfers, sales or other dispositions as Terrain may otherwise agree in writing in its sole discretion. If any voluntary or involuntary transfer of any Shares covered hereby shall occur (including a transfer or disposition permitted by Section 4(1) through Section 4(5), sale by a Stockholder’s trustee in bankruptcy, or a sale to a purchaser at any creditor’s or court sale), the transferee (which term, as used herein, shall include any and all transferees and subsequent transferees of the initial transferee) shall take and hold such Shares subject to all of the restrictions, liabilities and rights under this Agreement, which shall continue in full force and effect, notwithstanding that such transferee is not a Stockholder and has not executed a counterpart hereof or joinder hereto.

5.    Representations and Warranties of Stockholder. Each Stockholder hereby, severally but not jointly, represents and warrants to Terrain and the Company as follows:

(a)    If such Stockholder is an Entity: (i) such Stockholder is duly organized, validly existing and in good standing under the laws of the jurisdiction in which it is incorporated, organized or constituted, (ii) such Stockholder has all necessary power and authority to execute and deliver this Agreement, to perform such Stockholder’s obligations hereunder and to consummate the transactions contemplated hereby, and (iii) the execution and delivery of this Agreement, performance of such Stockholder’s obligations hereunder and the consummation of the transactions contemplated hereby by such Stockholder have been duly authorized by all necessary action on the part of such Stockholder and no other proceedings on the part of such Stockholder are necessary to authorize this Agreement, or to consummate the transactions contemplated hereby. If such Stockholder is an individual, such Stockholder has the legal capacity to execute and deliver this Agreement, to perform such Stockholder’s obligations hereunder and to consummate the transactions contemplated hereby;

(b)    this Agreement has been duly executed and delivered by or on behalf of such Stockholder and, to such Stockholder’s knowledge and assuming this Agreement constitutes a valid and binding agreement of the Company and Terrain, constitutes a valid and binding agreement with respect to such Stockholder, enforceable against such Stockholder in accordance with its terms, except as enforcement may be limited by general principles of equity whether applied in a court of Law or a court of equity and by bankruptcy, insolvency and similar Laws affecting creditors’ rights and remedies generally;

(c)    Stockholder has had the opportunity to review the Merger Agreement, including the provisions relating to the payment and allocation of the consideration to be paid to the stockholders of the Company, and this Agreement with counsel of Stockholder’s own choosing. Stockholder has had an opportunity to review with its own tax advisors the tax consequences of the Merger and the Contemplated Transactions. Stockholder understands that it must rely solely on its advisors and not on any statements or representations made by Terrain, the Company or any of their respective agents or representatives. Stockholder understands that such Stockholder (and not Terrain, the Company or the Surviving Corporation) shall be responsible for such Stockholder’s tax

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liability that may arise as a result of the Merger or the transactions contemplated by the Merger Agreement. Stockholder understands and acknowledges that the Company, Terrain and Merger Sub are entering into the Merger Agreement in reliance upon Stockholder’s execution, delivery and performance of this Agreement.

(e)    to the knowledge of such Stockholder, the execution and delivery of this Agreement by such Stockholder does not, and the performance by such Stockholder of his, her or its obligations hereunder and the compliance by such Stockholder with any provisions hereof will not, violate or conflict with, result in a material breach of or constitute a default (or an event that with notice or lapse of time or both would become a material default) under, or give to others any rights of termination, amendment, acceleration or cancellation of, or result in the creation of any Liens on any Shares or New Shares pursuant to, any agreement, instrument, note, bond, mortgage, Contract, lease, license, permit or other obligation or any order, arbitration award, judgment or decree to which such Stockholder is a party or by which such Stockholder is bound, or any Law, statute, rule or regulation to which such Stockholder is subject or, in the event that such Stockholder is a corporation, partnership, trust or other Entity, any bylaw or other Organizational Document of such Stockholder; except for any of the foregoing as would not reasonably be expected to prevent or delay the performance by such Stockholder of his, her or its obligations under this Agreement in any material respect;

(f)    the execution and delivery of this Agreement by such Stockholder does not, and the performance of this Agreement by such Stockholder does not and will not, require any consent, approval, authorization or permit of, or filing with or notification to, any Governmental Authority or regulatory authority by such Stockholder except for applicable requirements, if any, of the Exchange Act, and except where the failure to obtain such consents, approvals, authorizations or permits, or to make such filings or notifications, would not prevent or delay the performance by such Stockholder of his, her or its obligations under this Agreement in any material respect;

(g)    no investment banker, broker, finder or other intermediary is entitled to a fee or commission from Terrain or the Company in respect of this Agreement based upon any Contract made by or on behalf of such Stockholder; and

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(h)    as of the date of this Agreement, there is no Legal Proceeding pending or, to the knowledge of such Stockholder, threatened against such Stockholder that would reasonably be expected to prevent or delay the performance by such Stockholder of his, her or its obligations under this Agreement in any material respect.

6.    Irrevocable Proxy. Subject to the penultimate sentence of this Section 6, by execution of this Agreement, each Stockholder does hereby appoint Terrain and any of its designees with full power of substitution and resubstitution, as such Stockholder’s true and lawful attorney and irrevocable proxy, to the fullest extent of such Stockholder’s rights with respect to the Shares, to vote and exercise all voting and related rights, including the right to sign such Stockholder’s name (solely in its capacity as a stockholder) to any Stockholder consent, if Stockholder is unable to perform or otherwise does not perform his, her or its obligations under this Agreement, with respect to such Shares solely with respect to the matters set forth in Section 1 hereof. Each Stockholder intends this proxy to be irrevocable and coupled with an interest hereunder until the Expiration Date, hereby revokes any proxy previously granted by such Stockholder with respect to the Shares and represents that none of such previously-granted proxies are irrevocable. The Stockholder hereby affirms that the proxy set forth in this Section 6 is given in connection with, and granted in consideration of, and as an inducement to the Company, Terrain and Merger Sub to enter into the Merger Agreement and that such proxy is given to secure the obligations of the Stockholder under Section 1. The irrevocable proxy and power of attorney granted herein shall survive the death or incapacity of such Stockholder and the obligations of such Stockholder shall be binding on such Stockholder’s heirs, personal representatives, successors, transferees and assigns. Each Stockholder hereby agrees not to grant any subsequent powers of attorney or proxies with respect to any Shares with respect to the matters set forth in Section 1 until after the Expiration Date. With respect to any Shares that are owned beneficially by Stockholder but are not held of record by Stockholder (other than shares beneficially owned by Stockholder that are held in the name of a bank, broker or nominee), Stockholder shall take all action necessary to cause the record holder of such Shares to grant the irrevocable proxy and take all other actions provided for in this Section 6 with respect to such Shares. Notwithstanding anything contained herein to the contrary, this irrevocable proxy shall automatically terminate upon the Expiration Date.

7.    No Solicitation. From and after the date hereof until the Expiration Date, each Stockholder shall not (a) solicit, initiate or knowingly encourage, induce or facilitate the communication, making, submission or announcement of any Acquisition Proposal or Acquisition Inquiry regarding the Company or take any action that could reasonably be expected to lead to an Acquisition Proposal or Acquisition Inquiry regarding the Company, (b) furnish any non-public information regarding the Company to any Person in connection with or in response to an Acquisition Proposal or Acquisition Inquiry regarding the Company, (c) engage in discussions or negotiations with any Person with respect to any Acquisition Proposal or Acquisition Inquiry regarding the Company (other than to inform any Person of the existence of the provisions in this Section 7), (d) approve, endorse or recommend any Acquisition Proposal (subject to Section 6.2 of the Merger Agreement), (e) execute or enter into any letter of intent or any Contract contemplating or otherwise relating to any Acquisition Transaction regarding the Company (subject to Section 5.4 of the Merger Agreement), (f) take any action that could reasonably be expected to lead to an Acquisition Proposal or Acquisition Inquiry, (g) initiate a stockholders’ vote

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or action by consent of the Company’s stockholders with respect to an Acquisition Proposal regarding the Company, (h) except by reason of this Agreement, become a member of a “group” (as such term is defined in Section 13(d) of the Exchange Act) with respect to any voting securities of the Company that takes any action in support of an Acquisition Proposal regarding the Company, or (i) propose or agree to do any of the foregoing. In the event that such Stockholder is a corporation, partnership, trust or other Entity, it shall not permit any of its Subsidiaries or Affiliates to, nor shall it authorize any officer, director or representative of such Stockholder, or any of its Subsidiaries or Affiliates to, undertake any of the actions contemplated by this Section 7.

8.    Waiver of Appraisal Rights; No Legal Actions.

(a)    Each Stockholder hereby waives, and agrees not to exercise or assert, any appraisal rights under applicable Law, including Section 262 of the DGCL, in connection with the Merger.

(b)    Each Stockholder will not in its capacity as a stockholder of the Company bring, commence, institute, maintain, prosecute or voluntarily aid any Legal Proceeding which (i) challenges the validity or seeks to enjoin the operation of any provision of this Agreement, or (ii) alleges that the execution and delivery of this Agreement by such Stockholder, either alone or together with the other voting agreements and proxies to be delivered in connection with the execution of the Merger Agreement, or the approval of the Merger Agreement and the Contemplated Transactions by the Company Board, constitutes a breach of any fiduciary duty of the Company Board or any member thereof.

9.    Other Remedies; Specific Performance. Except as otherwise provided herein, any and all remedies herein expressly conferred upon a party will be deemed cumulative with and not exclusive of any other remedy conferred hereby, or by Law or equity upon such party, and the exercise by a party of any one remedy will not preclude the exercise of any other remedy. The parties agree that irreparable damage for which monetary damages, even if available, would not be an adequate remedy, would occur in the event that any of the provisions of this Agreement were not performed in accordance with their specific terms or were otherwise breached. It is accordingly agreed that the parties shall be entitled to an injunction or injunctions to prevent breaches of this Agreement and to enforce specifically the terms and provisions hereof in any court of the United States or any state having jurisdiction, this being in addition to any other remedy to which they are entitled at Law or in equity, and each of the parties waives any bond, surety or other security that might be required of any other party with respect thereto. Each of the parties further agrees that it will not oppose the granting of an injunction, specific performance or other equitable relief on the basis that any other party has an adequate remedy at Law or that any award of specific performance is not an appropriate remedy for any reason at Law or in equity.

10.    Directors and Officers. This Agreement shall apply to each Stockholder solely in such Stockholder’s capacity as a stockholder of the Company and/or holder of Company Options and not in such Stockholder’s capacity as a director, officer or employee of the Company or any of its Subsidiaries or in such Stockholder’s capacity as a trustee or fiduciary of any employee benefit plan or trust. Notwithstanding any provision of this Agreement to the contrary, nothing in

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this Agreement shall (or require Stockholder to attempt to) limit or restrict a director and/or officer of the Company in the exercise of his or her fiduciary duties consistent with the terms of the Merger Agreement as a director and/or officer of the Company or in his or her capacity as a trustee or fiduciary of any employee benefit plan or trust or prevent or be construed to create any obligation on the part of any director and/or officer of the Company or any trustee or fiduciary of any employee benefit plan or trust from taking any action in his or her capacity as such director, officer, trustee and/or fiduciary.

11.    No Ownership Interest. Nothing contained in this Agreement shall be deemed to vest in Terrain any direct or indirect ownership or incidence of ownership of or with respect to any Shares. All rights, ownership and economic benefits of and relating to the Shares shall remain vested in and belong to such Stockholder, and Terrain does not have authority to manage, direct, superintend, restrict, regulate, govern or administer any of the policies or operations of the Company or exercise any power or authority to direct such Stockholder in the voting of any of the Shares, except as otherwise provided herein.

12.    Termination. This Agreement shall terminate and shall have no further force or effect as of the Expiration Date. Notwithstanding the foregoing, upon termination or expiration of this Agreement, no party shall have any further obligations or liabilities under this Agreement; provided, however, nothing set forth in this Section 12 or elsewhere in this Agreement shall relieve any party from liability for any fraud or for any willful and material breach of this Agreement prior to termination hereof.

13.    Further Assurances. Each Stockholder shall, from time to time, execute and deliver, or cause to be executed and delivered, such additional or further consents, documents and other instruments as the Company or Terrain may reasonably request for the purpose of effectively carrying out the transactions contemplated by this Agreement and the Contemplated Transactions.

14.    Disclosure. Each Stockholder hereby agrees that Terrain and the Company may publish and disclose in the Registration Statement, any prospectus filed with any regulatory authority in connection with the Contemplated Transactions and any related documents filed with such regulatory authority and as otherwise required by Law, such Stockholder’s identity and ownership of Shares and the nature of such Stockholder’s commitments, arrangements and understandings under this Agreement and may further file this Agreement as an exhibit to the Registration Statement or prospectus or in any other filing made by Terrain or the Company as required by Law or the terms of the Merger Agreement, including with the SEC or other regulatory authority, relating to the Contemplated Transactions, all subject to prior review and an opportunity to comment by Stockholder’s counsel. Prior to the Closing, each Stockholder shall not, and shall use its reasonable best efforts to cause its representatives not to, directly or indirectly, make any press release, public announcement or other public communication that criticizes or disparages this Agreement or the Merger Agreement or any of the Contemplated Transactions, without the prior written consent of Terrain and the Company, provided that the foregoing shall not limit or affect any actions taken by such Stockholder (or any affiliated officer or director of such Stockholder) that would be permitted to be taken by such Stockholder, Terrain or the Company pursuant to the Merger Agreement; provided, further, that the foregoing shall not effect any actions of Stockholder the prohibition of which would be prohibited under applicable Law.

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15.    Notice. All notices and other communications hereunder shall be in writing and shall be deemed to have been duly delivered and received hereunder (a) one (1) Business Day after being sent for next Business Day delivery, fees prepaid, via a reputable international overnight courier service, (b) upon delivery in the case of delivery by hand or (c) on the date delivered in the place of delivery if sent by email (with a written or electronic confirmation of delivery) prior to 6:00 p.m. New York City time, otherwise on the next succeeding Business Day, in each case to the intended recipient: (i) to the Company or Terrain, as applicable, in accordance with Section 11.7 of the Merger Agreement, and (ii) to each Stockholder at his, her or its address or email address (providing confirmation of transmission) set forth on Schedule 1 attached hereto (or at such other address for a party as shall be specified by like notice).

16.    Severability. Any term or provision of this Agreement that is invalid or unenforceable in any situation in any jurisdiction shall not affect the validity or enforceability of the remaining terms and provisions of this Agreement or the validity or enforceability of the offending term or provision in any other situation or in any other jurisdiction. If a final judgment of a court of competent jurisdiction declares that any term or provision of this Agreement is invalid or unenforceable, the parties hereto agree that the court making such determination shall have the power to limit such term or provision, to delete specific words or phrases or to replace such term or provision with a term or provision that is valid and enforceable and that comes closest to expressing the intention of the invalid or unenforceable term or provision, and this Agreement shall be valid and enforceable as so modified. In the event such court does not exercise the power granted to it in the prior sentence, the parties hereto agree to replace such invalid or unenforceable term or provision with a valid and enforceable term or provision that will achieve, to the extent possible, the economic, business and other purposes of such invalid or unenforceable term or provision.

17.    Assignability. This Agreement shall be binding upon, and shall be enforceable by and inure solely to the benefit of, the Parties and their respective successors and assigns; provided, however, that neither this Agreement nor any of a Party’s rights or obligations hereunder may be assigned or delegated by such Party without the prior written consent of the other Party, and any attempted assignment or delegation of this Agreement or any of such rights or obligations by such Party without the other Party’s prior written consent shall be void and of no effect.

18.    No Waivers. No waivers of any breach of this Agreement extended by the Company or Terrain to such Stockholder shall be construed as a waiver of any rights or remedies of the Company or Terrain, as applicable, with respect to any other stockholder of the Company who has executed an agreement substantially in the form of this Agreement with respect to Shares held or subsequently held by such stockholder or with respect to any subsequent breach of Stockholder or any other such stockholder of the Company. No waiver of any provisions hereof by any party shall be deemed a waiver of any other provisions hereof by any such party, nor shall any such waiver be deemed a continuing waiver of any provision hereof by such party.

19.    Applicable Law; Jurisdiction. This Agreement shall be governed by, and construed in accordance with, the Laws of the state of Delaware, regardless of the Laws that might otherwise govern under applicable principles of conflicts of Laws. In any action or Legal Proceeding between any of the parties arising out of or relating to this Agreement, each of the parties:

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(i) irrevocably and unconditionally consents and submits to the exclusive jurisdiction and venue of the Court of Chancery of the state of Delaware or to the extent such court does not have subject matter jurisdiction, the Superior Court of the State of Delaware or the United States District Court for the District of Delaware, (ii) agrees that all claims in respect of such action or Legal Proceeding shall be heard and determined exclusively in accordance with clause (i) of this Section 19, (iii) waives any objection to laying venue in any such action or Legal Proceeding in such courts, (iv) waives any objection that such courts are an inconvenient forum or do not have jurisdiction over any party, and (v) agrees that service of process upon such party in any such action or Legal Proceeding shall be effective if notice is given in accordance with Section 15 of this Agreement.

20.    Waiver of Jury Trial. The parties hereto hereby waive any right to trial by jury with respect to any action or Legal Proceeding related to or arising out of this Agreement, any document executed in connection herewith and the matters contemplated hereby and thereby.

21.    No Agreement Until Executed. Irrespective of negotiations among the parties or the exchanging of drafts of this Agreement, this Agreement shall not constitute or be deemed to evidence a Contract, agreement, arrangement or understanding between the parties hereto unless and until (a) the Company Board has approved, for purposes of any applicable anti-takeover Laws and regulations and any applicable provision of the certificate of incorporation of the Company, the Merger Agreement and the Contemplated Transactions, (b) the Merger Agreement is executed by all parties thereto, and (c) this Agreement is executed by all parties hereto.

22.    Entire Agreement; Counterparts; Exchanges by Electronic Transmission. This Agreement and the other agreements referred to in this Agreement constitute the entire agreement and supersede all prior agreements and understandings, both written and oral, among or between any of the parties with respect to the subject matter hereof and thereof. This Agreement may be executed in several counterparts, each of which shall be deemed an original and all of which shall constitute one and the same instrument. The exchange of a fully executed Agreement (in counterparts or otherwise) by all parties by electronic transmission via “.pdf” shall be sufficient to bind the parties to the terms and conditions of this Agreement.

23.    Amendment. This Agreement may not be amended, supplemented or modified, and no provisions hereof may be modified or waived, except by an instrument in writing signed on behalf of each party hereto; provided, however, that the rights or obligations of any Stockholder may be waived, amended or otherwise modified in a writing signed by Terrain, the Company and such Stockholder.

24.    Fees and Expenses. Except as otherwise specifically provided herein, the Merger Agreement or any other agreement contemplated by the Merger Agreement to which a party hereto is a party, each party hereto shall bear its own expenses in connection with this Agreement and the transactions contemplated hereby.

25.    Voluntary Execution of Agreement. This Agreement is executed voluntarily and without any duress or undue influence on the part or behalf of the parties. Each of the parties hereby acknowledges, represents and warrants that (i) it has read and fully understood the Merger Agreement including the provisions relating to the payment and allocation of the consideration to

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be paid to stockholders of the Company as well as holders of Company Options, this Agreement, and the implications and consequences thereof; (ii) it has been represented in the preparation, negotiation, and execution of this Agreement by legal counsel of its own choice, or it has made a voluntary and informed decision to decline to seek such counsel; and (iii) it is fully aware of the legal and binding effect of this Agreement.

26.    Definition of Contemplated Transactions. For purposes of this Agreement, the term “Contemplated Transactions” means the Merger and the other transactions contemplated by the Agreement, including the Terrain Closing Cash Dividend, the Pre-Closing Financing and the Reverse Stock Split.

27.    Construction.

(a)    For purposes of this Agreement, whenever the context requires: the singular number shall include the plural, and vice versa; the masculine gender shall include the feminine and neuter genders; the feminine gender shall include the masculine and neuter genders; and the neuter gender shall include masculine and feminine genders.

(b)    The parties hereto agree that any rule of construction to the effect that ambiguities are to be resolved against the drafting party shall not be applied in the construction or interpretation of this Agreement.

(c)    As used in this Agreement, the words “include” and “including,” and variations thereof, shall not be deemed to be terms of limitation, but rather shall be deemed to be followed by the words “without limitation.”

(d)    Except as otherwise indicated, all references in this Agreement to “Sections,” and “Schedules” are intended to refer to Sections of this Agreement and Schedules to this Agreement, respectively.

(e)    The underlined headings contained in this Agreement are for convenience of reference only, shall not be deemed to be a part of this Agreement and shall not be referred to in connection with the construction or interpretation of this Agreement.

[Remainder of Page has Intentionally Been Left Blank]

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EXECUTED as of the date first above written.

Signature Page to Support Agreement

EXECUTED as of the date first above written.

Signature Page to Company Support Agreement

SCHEDULE 1

Exhibit C

LOCK-UP AGREEMENT

June    , 2023

Talaris Therapeutics, Inc.

93 Worcester St.

Wellesley, MA 02481

Ladies and Gentlemen:

The undersigned signatory of this lock-up agreement (this “Lock-Up Agreement”) understands that Talaris Therapeutics, Inc., a Delaware corporation (“Terrain”), has entered into an Agreement and Plan of Merger, dated as of June [●], 2023 (as the same may be amended from time to time, the “Merger Agreement”) with Terrain Merger Sub, Inc., a Delaware corporation and a wholly owned subsidiary of Terrain, and Tourmaline Bio, Inc., a Delaware corporation (the “Company”). Capitalized terms used but not otherwise defined herein shall have the respective meanings ascribed to such terms in the Merger Agreement.

As a condition and inducement to each of the parties to enter into the Merger Agreement, and for other good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged, the undersigned hereby irrevocably agrees that, subject to the exceptions set forth herein, the undersigned will not, during the period commencing upon the Closing and ending on the date that is 180 days after the Closing Date (the “Restricted Period”):

The restrictions and obligations contemplated by this Lock-Up Agreement shall not apply to:

(a) transfers of the Undersigned’s Shares:

provided that, in the case of any transfer or distribution pursuant to this clause (a)(i) or (a)(iii), such transfer is not for value and each donee, heir, beneficiary or other transferee or distributee shall sign and deliver to Terrain a lock-up agreement in the form of this Lock-Up Agreement with respect to the shares of Terrain Common Stock or such other securities that have been so transferred or distributed;

(b)    the exercise of an option to purchase Terrain Common Stock (including a net or cashless exercise of an option to purchase Terrain Common Stock), and any related transfer of shares of Terrain Common Stock to Terrain for the purpose of paying the exercise price of such options or for paying taxes (including estimated taxes) due as a result of the exercise of such options; provided that, for the avoidance of doubt, the underlying shares of Terrain Common Stock shall continue to be subject to the restrictions on transfer set forth in this Lock-Up Agreement;

(c)    the disposition (including a forfeiture or repurchase) to Terrain of any shares of restricted stock granted pursuant to the terms of any employee benefit plan or restricted stock purchase agreement;

(d)    transfers to Terrain in connection with the net settlement of any restricted stock unit or other equity award that represents the right to receive in the future shares of Terrain Common Stock settled in Terrain Common Stock to pay any tax withholding obligations; provided that, for the avoidance of doubt, the underlying shares of Terrain Common Stock shall continue to be subject to the restrictions on transfer set forth in this Lock-Up Agreement;

(e)     the establishment of a trading plan pursuant to Rule 10b5-1 under the Exchange Act for the transfer of Terrain Common Stock; provided that such plan does not provide for any transfers of Terrain Common Stock during the Restricted Period;

(f)    transfers or sales by the undersigned of shares of Terrain Common Stock purchased by the undersigned on the open market following the Closing Date;

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(g)    pursuant to a bona-fide third party tender offer, merger, consolidation or other similar transaction made to all holders of Terrain’ capital stock involving a change of control of Terrain, provided that in the event that such tender offer, merger, consolidation or other such transaction is not completed, the Undersigned’s Shares shall remain subject to the restrictions contained in this Lock-Up Agreement;

(h)     pursuant to an order of a court or regulatory agency;

(i)    sales or other transfers with the prior written consent of Terrain; or

(j)    transfers by the undersigned of shares of the Company, if any, purchased from the Company on or about the Closing Date but prior to the Closing pursuant to that certain Securities Purchase Agreement dated as of the date of the Merger Agreement.

and provided, further, that, with respect to each of (a), (b), (c), (d) and (e) above, no filing by any party (including any donor, donee, transferor, transferee, distributor or distributee) under Section 16 of the Exchange Act or other public announcement shall be required or shall be made voluntarily in connection with such transfer or disposition during the Restricted Period (other than (i) any exit filings or public announcements that may be required under applicable federal and state securities Laws or (ii) in respect of a required filing under the Exchange Act in connection with the exercise of an option to purchase Terrain Common Stock or in connection with the net settlement of any restricted stock unit or other equity award that represents the right to receive in the future shares of Terrain Common Stock settled in Terrain Common Stock that would otherwise expire during the Restricted Period, provided that reasonable notice shall be provided to Terrain prior to any such filing).

Any attempted transfer in violation of this Lock-Up Agreement will be of no effect and null and void, regardless of whether the purported transferee has any actual or constructive knowledge of the transfer restrictions set forth in this Lock-Up Agreement, and will not be recorded on the share register of Terrain. In furtherance of the foregoing, the undersigned agrees that Terrain and any duly appointed transfer agent for the registration or transfer of the securities described herein are hereby authorized to decline to make any transfer of securities if such transfer would constitute a violation or breach of this Lock-Up Agreement. Terrain may cause the legend set forth below, or a legend substantially equivalent thereto, to be placed upon any certificate(s) or other documents, ledgers or instruments evidencing the undersigned’s ownership of Terrain Common Stock:

THE SHARES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO AND MAY ONLY BE TRANSFERRED IN COMPLIANCE WITH A LOCK-UP AGREEMENT, A COPY OF WHICH IS ON FILE AT THE PRINCIPAL OFFICE OF THE COMPANY.

The undersigned hereby represents and warrants that the undersigned has full power and authority to enter into this Lock-Up Agreement. All authority herein conferred or agreed to be conferred and any obligations of the undersigned shall be binding upon the successors, assigns, heirs or personal representatives of the undersigned.

The undersigned understands that if the Merger Agreement is terminated for any reason or the Closing does not occur by December 31, 2023, the undersigned shall be released from all obligations under this Lock-Up Agreement. The undersigned understands that Terrain and the Company are proceeding with the Contemplated Transactions in reliance upon this Lock-Up Agreement.

Any and all remedies herein expressly conferred upon Terrain or the Company will be deemed cumulative with and not exclusive of any other remedy conferred hereby, or by Law or equity, and the exercise by Terrain or the Company of any one remedy will not preclude the exercise of any other

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remedy. The undersigned agrees that irreparable damage would occur to Terrain and/or the Company in the event that any provision of this Lock-Up Agreement was not performed in accordance with its specific terms or were otherwise breached. It is accordingly agreed that Terrain and the Company shall be entitled to an injunction or injunctions to prevent breaches of this Lock-Up Agreement and to enforce specifically the terms and provisions hereof in any court of the United States or any state having jurisdiction, this being in addition to any other remedy to which Terrain or the Company is entitled at Law or in equity, and the undersigned waives any bond, surety or other security that might be required of Terrain or the Company with respect thereto.

In the event that any holder of Terrain’ securities that are subject to a substantially similar agreement entered into by such holder, other than the undersigned, is permitted by Terrain to sell or otherwise transfer or dispose of shares of Terrain Common Stock for value other than as permitted by this or a substantially similar agreement entered into by such holder, the same percentage of shares of Terrain Common Stock held by the undersigned shall be immediately and fully released on the same terms from any remaining restrictions set forth herein (the “Pro-Rata Release”); provided, however, that such Pro-Rata Release shall not be applied unless and until permission has been granted by Terrain to an equity holder or equity holders to sell or otherwise transfer or dispose of all or a portion of such equity holders shares of Terrain Common Stock in an aggregate amount in excess of 1% of the number of shares of Terrain Common Stock originally subject to a substantially similar agreement.

Upon the release of any of the Undersigned’s Shares from this Lock-Up Agreement, Terrain will cooperate with the undersigned to facilitate the timely preparation and delivery of certificates representing the Undersigned Shares without the restrictive legend above or the withdrawal of any stop transfer instructions.

This Lock-Up Agreement and any claim, controversy or dispute arising under or related to this Lock-Up Agreement shall be governed by and construed in accordance with the Laws of the state of Delaware, without regard to the conflict of Laws principles thereof.

This Lock-Up Agreement may be executed in several counterparts, each of which shall be deemed an original and all of which shall constitute one and the same instrument. The exchange of a fully executed Lock-Up Agreement (in counterparts or otherwise) by Terrain, the Company and the undersigned by facsimile or electronic transmission in .pdf format shall be sufficient to bind such parties to the terms and conditions of this Lock-Up Agreement.

(Signature Page Follows)

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[Signature Page to Lock-up Agreement]

Exhibit D

TOURMALINE BIO, INC.

2023 EQUITY INCENTIVE PLAN

ADOPTED BY THE BOARD OF DIRECTORS: [DATE]

APPROVED BY THE STOCKHOLDERS: [DATE]

(a)    Plan Purpose. The Company, by means of the Plan, seeks to secure and retain the services of Employees, Directors and Consultants, to provide incentives for such persons to exert maximum efforts for the success of the Company and any Affiliate and to provide a means by which such persons may be given an opportunity to benefit from increases in value of the Common Stock through the granting of Awards.

(b)    Available Awards. The Plan provides for the grant of the following Awards: (i) Incentive Stock Options; (ii) Nonstatutory Stock Options; (iii) SARs; (iv) Restricted Stock Awards; (v) RSU Awards; (vi) Performance Awards; and (vii) Other Awards.

(c)    Adoption Date; Effective Date. The Plan will come into existence on the Adoption Date, but no Award may be granted prior to the Effective Date.

(a)    Share Reserve. Subject to adjustment in accordance with Section 2(c) and any adjustments as necessary to implement any Capitalization Adjustments, the aggregate number of shares of Common Stock that may be issued pursuant to Awards will not exceed a number of shares of Common Stock equal to ten percent (10%) of the total number of shares of Common Stock issued and outstanding determined as of immediately after the Effective Time (the “Initial Share Reserve”). In addition, subject to any adjustments as necessary to implement any Capitalization Adjustments, such aggregate number of shares of Common Stock will automatically increase on January 1 of each year for a period of ten years commencing on January 1, 2024 and ending on (and including) January 1, 2033, in an amount equal to five percent (5%) of the total number of shares of Common Stock issued and outstanding determined as of the day prior to such increase; provided, however that the Board may act prior to January 1 of a given year to provide that the increase for such year will be a lesser number of shares of Common Stock.

(b)    Aggregate Incentive Stock Option Limit. Notwithstanding anything to the contrary in Section 2(a) and subject to any adjustments as necessary to implement any Capitalization Adjustments, the aggregate maximum number of shares of Common Stock that may be issued pursuant to the exercise of Incentive Stock Options is three (3) multiplied by the Initial Share Reserve.

(c)    Share Reserve Operation.

(i)    Limit Applies to Common Stock Issued Pursuant to Awards. For clarity, the Share Reserve is a limit on the number of shares of Common Stock that may be issued pursuant to Awards and does not limit the granting of Awards, except that the Company will keep available at all times the number of shares of Common Stock reasonably required to

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satisfy its obligations to issue shares pursuant to such Awards. Shares may be issued in connection with a merger or acquisition as permitted by, as applicable, Nasdaq Listing Rule 5635(c), NYSE Listed Company Manual Section 303A.08, NYSE American Company Guide Section 711 or other applicable rule, and such issuance will not reduce the number of shares available for issuance under the Plan.

(ii)    Actions that Do Not Constitute Issuance of Common Stock and Do Not Reduce Share Reserve. The following actions do not result in an issuance of shares under the Plan and accordingly do not reduce the number of shares subject to the Share Reserve and available for issuance under the Plan: (1) the expiration or termination of any portion of an Award without the shares covered by such portion of the Award having been issued; (2) the settlement of any portion of an Award in cash (i.e., the Participant receives cash rather than Common Stock); (3) the withholding of shares that would otherwise be issued by the Company to satisfy the exercise, strike or purchase price of an Award; or (4) the withholding of shares that would otherwise be issued by the Company to satisfy a tax withholding obligation in connection with an Award.

(iii)    Reversion of Previously Issued Shares of Common Stock to Share Reserve. The following shares of Common Stock previously issued pursuant to an Award and accordingly initially deducted from the Share Reserve will be added back to the Share Reserve and again become available for issuance under the Plan: (1) any shares that are forfeited back to or repurchased by the Company because of a failure to meet a contingency or condition required for the vesting of such shares, (2) any shares that are reacquired by the Company to satisfy the exercise, strike or purchase price of an Award, and (3) any shares that are reacquired by the Company to satisfy a tax withholding obligation in connection with an Award.

(a)    Eligible Award Recipients. Subject to the terms of the Plan, Employees, Directors and Consultants are eligible to receive Awards.

(b)    Specific Award Limitations.

(i)    Limitations on Incentive Stock Option Recipients. Incentive Stock Options may be granted only to Employees of the Company or a “parent corporation” or “subsidiary corporation” thereof (as such terms are defined in Sections 424(e) and (f) of the Code).

(ii)    Incentive Stock Option $100,000 Limitation. To the extent that the aggregate Fair Market Value (determined at the time of grant) of Common Stock with respect to which Incentive Stock Options are exercisable for the first time by any Optionholder during any calendar year (under all plans of the Company and any Affiliates) exceeds $100,000 (or such other limit established in the Code) or any Option otherwise does not comply with the rules governing Incentive Stock Options, the Options or portions thereof that exceed such limit (according to the order in which they were granted) or otherwise do not comply with such rules will be treated as Nonstatutory Stock Options, notwithstanding any contrary provision of the applicable Option Agreement(s).

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(iii)    Limitations on Incentive Stock Options Granted to Ten Percent Stockholders. A Ten Percent Stockholder may not be granted an Incentive Stock Option unless (1) the exercise price of such Option is at least 110% of the Fair Market Value on the date of grant of such Option and (2) the Option is not exercisable after the expiration of five years from the date of grant of such Option.

(iv)    Limitations on Nonstatutory Stock Options and SARs. Nonstatutory Stock Options and SARs may not be granted to Employees, Directors and Consultants unless the stock underlying such Awards is treated as “service recipient stock” under Section 409A or unless such Awards otherwise comply with the requirements of Section 409A.

(c)    Aggregate Incentive Stock Option Limit. The aggregate maximum number of shares of Common Stock that may be issued pursuant to the exercise of Incentive Stock Options is the number of shares specified in Section 2(b).

(d)    Non-Employee Director Compensation Limit. The aggregate value of all compensation granted or paid, as applicable, to any individual for service as a Non-Employee Director with respect to any period commencing on the date of the Company’s Annual Meeting of Stockholders for a particular year and ending on the day immediately prior to the date of the Company’s Annual Meeting of Stockholders for the next subsequent year (the “Annual Period”), including Awards granted and cash fees paid by the Company to such Non-Employee Director, will not exceed (1) $[750,000] in total value or (2) in the event such Non-Employee Director is first appointed or elected to the Board during such Annual Period, $[1,000,000] in total value, in each case, calculating the value of any equity awards based on the grant date fair value of such equity awards for financial reporting purposes. The limitations in this Section 3(d) shall apply commencing with the Annual Period that begins on the Company’s first Annual Meeting of Stockholders following the Effective Date.

Each Option and SAR will have such terms and conditions as determined by the Board. Each Option will be designated in writing as an Incentive Stock Option or Nonstatutory Stock Option at the time of grant; provided, however, that if an Option is not so designated or if an Option designated as an Incentive Stock Option fails to qualify as an Incentive Stock Option, then such Option will be a Nonstatutory Stock Option, and the shares purchased upon exercise of each type of Option will be separately accounted for. Each SAR will be denominated in shares of Common Stock equivalents. The terms and conditions of separate Options and SARs need not be identical; provided, however, that each Option Agreement and SAR Agreement will conform (through incorporation of provisions hereof by reference in the Award Agreement or otherwise) to the substance of each of the following provisions:

(a)    Term. Subject to Section 3(b) regarding Ten Percent Stockholders, no Option or SAR will be exercisable after the expiration of ten years from the date of grant of such Award or such shorter period specified in the Award Agreement.

(b)    Exercise or Strike Price. Subject to Section 3(b) regarding Ten Percent Stockholders, the exercise or strike price of each Option or SAR will not be less than 100% of the Fair Market Value on the date of grant of such Award. Notwithstanding the foregoing, an Option or SAR may be granted with an exercise or strike price lower than 100% of the Fair

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Market Value on the date of grant of such Award if such Award is granted pursuant to an assumption of or substitution for another option or stock appreciation right pursuant to a Corporate Transaction and in a manner consistent with the provisions of Sections 409A and, if applicable, 424(a) of the Code.

(c)    Exercise Procedure and Payment of Exercise Price for Options. In order to exercise an Option, the Participant must provide notice of exercise to the Plan Administrator in accordance with the procedures specified in the Option Agreement or otherwise provided by the Company. The Board has the authority to grant Options that do not permit all of the following methods of payment (or otherwise restrict the ability to use certain methods) and to grant Options that require the consent of the Company to utilize a particular method of payment. The exercise price of an Option may be paid, to the extent permitted by Applicable Law and as determined by the Board, by one or more of the following methods of payment to the extent set forth in the Option Agreement:

(i)    by cash or check, bank draft or money order payable to the Company;

(ii)    pursuant to a “cashless exercise” program developed under Regulation T as promulgated by the Federal Reserve Board that, prior to the issuance of the Common Stock subject to the Option, results in either the receipt of cash (or check) by the Company or the receipt of irrevocable instructions to pay the exercise price to the Company from the sales proceeds;

(iii)    by delivery to the Company (either by actual delivery or attestation) of shares of Common Stock that are already owned by the Participant free and clear of any liens, claims, encumbrances or security interests, with a Fair Market Value on the date of exercise that does not exceed the exercise price, provided that (1) at the time of exercise the Common Stock is publicly traded, (2) any remaining balance of the exercise price not satisfied by such delivery is paid by the Participant in cash or other permitted form of payment, (3) such delivery would not violate any Applicable Law or agreement restricting the redemption of the Common Stock, (4) any certificated shares are endorsed or accompanied by an executed assignment separate from certificate, and (5) such shares have been held by the Participant for any minimum period necessary to avoid adverse accounting treatment as a result of such delivery;

(iv)    if the Option is a Nonstatutory Stock Option, by a “net exercise” arrangement pursuant to which the Company will reduce the number of shares of Common Stock issuable upon exercise by the largest whole number of shares with a Fair Market Value on the date of exercise that does not exceed the exercise price, provided that (1) such shares used to pay the exercise price will not be exercisable thereafter and (2) any remaining balance of the exercise price not satisfied by such net exercise is paid by the Participant in cash or other permitted form of payment; or

(v)    in any other form of consideration that may be acceptable to the Board and permissible under Applicable Law.

(d)    Exercise Procedure and Payment of Appreciation Distribution for SARs. In order to exercise any SAR, the Participant must provide notice of exercise to the Plan Administrator in accordance with the SAR Agreement. The appreciation distribution payable to a Participant upon the exercise of a SAR will not be greater than an amount equal to the excess

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of (i) the aggregate Fair Market Value on the date of exercise of a number of shares of Common Stock equal to the number of Common Stock equivalents that are vested and being exercised under such SAR, over (ii) the strike price of such SAR. Such appreciation distribution may be paid to the Participant in the form of Common Stock or cash (or any combination of Common Stock and cash) or in any other form of payment, as determined by the Board and specified in the SAR Agreement.

(e)    Transferability. Options and SARs may not be transferred to third party financial institutions for value. The Board may impose such additional limitations on the transferability of an Option or SAR as it determines. In the absence of any such determination by the Board, the following restrictions on the transferability of Options and SARs will apply, provided that except as explicitly provided herein, neither an Option nor a SAR may be transferred for consideration and provided, further, that if an Option is an Incentive Stock Option, such Option may be deemed to be a Nonstatutory Stock Option as a result of such transfer:

(i)    Restrictions on Transfer. An Option or SAR will not be transferable, except by will or by the laws of descent and distribution, and will be exercisable during the lifetime of the Participant only by the Participant; provided, however, that the Board may permit transfer of an Option or SAR in a manner that is not prohibited by applicable tax and securities laws upon the Participant’s request, including to a trust if the Participant is considered to be the sole beneficial owner of such trust (as determined under Section 671 of the Code and applicable state law) while such Option or SAR is held in such trust, provided that the Participant and the trustee enter into a transfer and other agreements required by the Company.

(ii)    Domestic Relations Orders. Notwithstanding the foregoing, subject to the execution of transfer documentation in a format acceptable to the Company and subject to the approval of the Board or a duly authorized Officer, an Option or SAR may be transferred pursuant to a domestic relations order.

(f)    Vesting. The Board may impose such restrictions on or conditions to the vesting and/or exercisability of an Option or SAR as determined by the Board. Except as otherwise provided in the Award Agreement or other written agreement between a Participant and the Company or an Affiliate, vesting of Options and SARs will cease upon termination of the Participant’s Continuous Service.

(g)    Termination of Continuous Service for Cause. Except as explicitly otherwise provided in the Award Agreement or other written agreement between a Participant and the Company or an Affiliate, if a Participant’s Continuous Service is terminated for Cause, the Participant’s Options and SARs will terminate and be forfeited immediately upon such termination of Continuous Service, and the Participant will be prohibited from exercising any portion (including any vested portion) of such Awards on and after the date of such termination of Continuous Service and the Participant will have no further right, title or interest in such forfeited Award, the shares of Common Stock subject to the forfeited Award, or any consideration in respect of the forfeited Award.

(h)    Post-Termination Exercise Period Following Termination of Continuous Service for Reasons Other than Cause. Subject to Section 4(i), if a Participant’s Continuous Service terminates for any reason other than for Cause, the Participant may exercise his or her

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Option or SAR to the extent vested, but only within the following period of time or, if applicable, such other period of time provided in the Award Agreement or other written agreement between a Participant and the Company or an Affiliate; provided, however, that in no event may such Award be exercised after the expiration of its maximum term (as set forth in Section 4(a)):

(i)    three months following the date of such termination if such termination is a termination without Cause (other than any termination due to the Participant’s Disability or death);

(ii)    12 months following the date of such termination if such termination is due to the Participant’s Disability;

(iii)    18 months following the date of such termination if such termination is due to the Participant’s death; or

(iv)    18 months following the date of the Participant’s death if such death occurs following the date of such termination but during the period such Award is otherwise exercisable (as provided in (i) or (ii) above).

Following the date of such termination, to the extent the Participant does not exercise such Award within the applicable Post-Termination Exercise Period (or, if earlier, prior to the expiration of the maximum term of such Award), such unexercised portion of the Award will terminate, and the Participant will have no further right, title or interest in the terminated Award, the shares of Common Stock subject to the terminated Award, or any consideration in respect of the terminated Award.

(i)    Restrictions on Exercise; Extension of Exercisability. A Participant may not exercise an Option or SAR at any time that the issuance of shares of Common Stock upon such exercise would violate Applicable Law. Except as otherwise provided in the Award Agreement or other written agreement between a Participant and the Company or an Affiliate, if a Participant’s Continuous Service terminates for any reason other than for Cause and, at any time during the last thirty days of the applicable Post-Termination Exercise Period, to the extent permitted by Section 409A: (i) the exercise of the Participant’s Option or SAR would be prohibited solely because the issuance of shares of Common Stock upon such exercise would violate Applicable Law, or (ii) the immediate sale of any shares of Common Stock issued upon such exercise would violate the Company’s Trading Policy, then the applicable Post-Termination Exercise Period will be extended to the last day of the calendar month that commences following the date the Award would otherwise expire, with an additional extension of the exercise period to the last day of the next calendar month to apply if any of the foregoing restrictions apply at any time during such extended exercise period, generally without limitation as to the maximum permitted number of extensions); provided, however, that in no event may such Award be exercised after the expiration of its maximum term (as set forth in Section 4(a)).

(j)    Non-Exempt Employees. No Option or SAR granted to an Employee who is a non-exempt employee for purposes of the Fair Labor Standards Act of 1938, as amended, will be first exercisable for any shares of Common Stock until at least six months following the date of grant of such Award. Notwithstanding the foregoing, in accordance with the provisions of the Worker Economic Opportunity Act, any vested portion of such Award may be exercised earlier than six months following the date of grant of such Award in the event of (i) such Participant’s

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death or Disability, (ii) a Corporate Transaction in which such Award is not assumed, continued or substituted, (iii) a Change in Control, or (iv) such Participant’s retirement (as such term may be defined in the Award Agreement or another applicable agreement or, in the absence of any such definition, in accordance with the Company’s then current employment policies and guidelines). This Section 4(j) is intended to operate so that any income derived by a non-exempt employee in connection with the exercise or vesting of an Option or SAR will be exempt from his or her regular rate of pay.

(k)    Whole Shares. Options and SARs may be exercised only with respect to whole shares of Common Stock or their equivalents.

(a)    Restricted Stock Awards and RSU Awards. Each Restricted Stock Award and RSU Award will have such terms and conditions as determined by the Board; provided, however, that each Restricted Stock Award Agreement and RSU Award Agreement will conform (through incorporation of the provisions hereof by reference in the Award Agreement or otherwise) to the substance of each of the following provisions:

(i)    Form of Award.

(1)    Restricted Stock Awards: To the extent consistent with the Company’s Bylaws, at the Board’s election, shares of Common Stock subject to a Restricted Stock Award may be (A) held in book entry form subject to the Company’s instructions until such shares become vested or any other restrictions lapse, or (B) evidenced by a certificate, which certificate will be held in such form and manner as determined by the Board. Unless otherwise determined by the Board, a Participant will have voting and other rights as a stockholder of the Company with respect to any shares subject to a Restricted Stock Award.

(2)    RSU Awards: An RSU Award represents a Participant’s right to be issued on a future date the number of shares of Common Stock that is equal to the number of restricted stock units subject to the RSU Award. As a holder of an RSU Award, a Participant is an unsecured creditor of the Company with respect to the Company’s unfunded obligation, if any, to issue shares of Common Stock in settlement of such Award and nothing contained in the Plan or any RSU Agreement, and no action taken pursuant to its provisions, will create or be construed to create a trust of any kind or a fiduciary relationship between a Participant and the Company or an Affiliate or any other person. A Participant will not have voting or any other rights as a stockholder of the Company with respect to any RSU Award (unless and until shares are actually issued in settlement of a vested RSU Award).

(ii)    Consideration.

(1)    Restricted Stock Awards: A Restricted Stock Award may be granted in consideration for (A) cash or check, bank draft or money order payable to the Company, (B) past services to the Company or an Affiliate, or (C) any other form of consideration (including future services) as the Board may determine and permissible under Applicable Law.

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(2)    RSU Awards: Unless otherwise determined by the Board at the time of grant, an RSU Award will be granted in consideration for the Participant’s services to the Company or an Affiliate, such that the Participant will not be required to make any payment to the Company (other than such services) with respect to the grant or vesting of the RSU Award, or the issuance of any shares of Common Stock pursuant to the RSU Award. If, at the time of grant, the Board determines that any consideration must be paid by the Participant (in a form other than the Participant’s services to the Company or an Affiliate) upon the issuance of any shares of Common Stock in settlement of the RSU Award, such consideration may be paid in any form of consideration as the Board may determine and permissible under Applicable Law.

(iii)    Vesting. The Board may impose such restrictions on or conditions to the vesting of a Restricted Stock Award or RSU Award as determined by the Board. Except as otherwise provided in the Award Agreement or other written agreement between a Participant and the Company or an Affiliate, vesting of Restricted Stock Awards and RSU Awards will cease upon termination of the Participant’s Continuous Service.

(iv)    Termination of Continuous Service. Except as otherwise provided in the Award Agreement or other written agreement between a Participant and the Company or an Affiliate, if a Participant’s Continuous Service terminates for any reason, (1) the Company may receive through a forfeiture condition or a repurchase right any or all of the shares of Common Stock held by the Participant under his or her Restricted Stock Award that have not vested as of the date of such termination as set forth in the Restricted Stock Award Agreement and the Participant will have no further right, title or interest in the Restricted Stock Award, the shares of Common Stock subject to the Restricted Stock Award, or any consideration in respect of the Restricted Stock Award and (2) any portion of his or her RSU Award that has not vested will be forfeited upon such termination and the Participant will have no further right, title or interest in the RSU Award, the shares of Common Stock issuable pursuant to the RSU Award, or any consideration in respect of the RSU Award.

(v)    Dividends and Dividend Equivalents. Dividends or dividend equivalents may be paid or credited, as applicable, with respect to any shares of Common Stock subject to a Restricted Stock Award or RSU Award, as determined by the Board and specified in the Award Agreement.

(vi)    Settlement of RSU Awards. An RSU Award may be settled by the issuance of shares of Common Stock or cash (or any combination thereof) or in any other form of payment, as determined by the Board and specified in the RSU Award Agreement. At the time of grant, the Board may determine to impose such restrictions or conditions that delay such delivery to a date following the vesting of the RSU Award.

(b)    Performance Awards. With respect to any Performance Award, the length of any Performance Period, the Performance Goals to be achieved during the Performance Period, the other terms and conditions of such Award, and the measure of whether and to what degree such Performance Goals have been attained will be determined by the Board.

(c)    Other Awards. Other forms of Awards valued in whole or in part by reference to, or otherwise based on, Common Stock, including the appreciation in value thereof may be granted either alone or in addition to Awards provided for under Section 4 and the preceding provisions of this Section 5. Subject to the provisions of the Plan, the Board will have sole and

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complete discretion to determine the persons to whom and the time or times at which such Other Awards will be granted, the number of shares of Common Stock (or the cash equivalent thereof) to be granted pursuant to such Other Awards and all other terms and conditions of such Other Awards.

(a)    Capitalization Adjustments. In the event of a Capitalization Adjustment, the Board shall appropriately and proportionately adjust: (i) the class(es) and maximum number of shares of Common Stock subject to the Plan, and the maximum number of shares by which the Share Reserve may annually increase pursuant to Section 2(a); (ii) the class(es) and maximum number of shares that may be issued pursuant to the exercise of Incentive Stock Options pursuant to Section 2(b); and (iii) the class(es) and number of securities and exercise price, strike price or purchase price of Common Stock subject to outstanding Awards. The Board shall make such adjustments, and its determination shall be final, binding and conclusive. Notwithstanding the foregoing, no fractional shares or rights for fractional shares of Common Stock shall be created in order to implement any Capitalization Adjustment. The Board shall determine an appropriate equivalent benefit, if any, for any fractional shares or rights to fractional shares that might be created by the adjustments referred to in the preceding provisions of this Section.

(b)    Dissolution or Liquidation. Except as otherwise provided in the Award Agreement, in the event of a dissolution or liquidation of the Company, all outstanding Awards (other than Awards consisting of vested and outstanding shares of Common Stock not subject to a forfeiture condition or the Company’s right of repurchase) will terminate immediately prior to the completion of such dissolution or liquidation, and the shares of Common Stock subject to the Company’s repurchase rights or subject to a forfeiture condition may be repurchased or reacquired by the Company notwithstanding the fact that the holder of such Award is providing Continuous Service, provided, however, that the Board may determine to cause some or all Awards to become fully vested, exercisable and/or no longer subject to repurchase or forfeiture (to the extent such Awards have not previously expired or terminated) before the dissolution or liquidation is completed but contingent on its completion.

(c)    Corporate Transaction. The following provisions will apply to Awards in the event of a Corporate Transaction except as set forth in Section 11 unless otherwise provided in the instrument evidencing the Award or any other written agreement between the Company or any Affiliate and the Participant or unless otherwise expressly provided by the Board at the time of grant of an Award.

(i)    Awards May Be Assumed. In the event of a Corporate Transaction, any surviving corporation or acquiring corporation (or the surviving or acquiring corporation’s parent company) may assume or continue any or all Awards outstanding under the Plan or may substitute similar awards for Awards outstanding under the Plan (including but not limited to, awards to acquire the same consideration paid to the stockholders of the Company pursuant to the Corporate Transaction), and any reacquisition or repurchase rights held by the Company in respect of Common Stock issued pursuant to Awards may be assigned by the Company to the successor of the Company (or the successor’s parent company, if any), in connection with such Corporate Transaction. A surviving corporation or acquiring corporation (or its parent) may choose to assume or continue only a portion of an Award or substitute a similar award for only a portion of an Award, or may choose to assume or continue the Awards held by some, but not all Participants. The terms of any assumption, continuation or substitution will be set by the Board.

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(ii)    Awards Held by Current Participants. In the event of a Corporate Transaction in which the surviving corporation or acquiring corporation (or its parent company) does not assume or continue such outstanding Awards or substitute similar awards for such outstanding Awards, then with respect to Awards that have not been assumed, continued or substituted and that are held by Participants whose Continuous Service has not terminated prior to the effective time of the Corporate Transaction (referred to as the “Current Participants”), the vesting of such Awards (and, with respect to Options and Stock Appreciation Rights, the time when such Awards may be exercised) will be accelerated in full to a date prior to the effective time of such Corporate Transaction (contingent upon the effectiveness of the Corporate Transaction) as the Board determines (or, if the Board does not determine such a date, to the date that is five days prior to the effective time of the Corporate Transaction), and such Awards will terminate if not exercised (if applicable) at or prior to the effective time of the Corporate Transaction, and any reacquisition or repurchase rights held by the Company with respect to such Awards will lapse (contingent upon the effectiveness of the Corporate Transaction). With respect to the vesting of Performance Awards that will accelerate upon the occurrence of a Corporate Transaction pursuant to this subsection (ii) and that have multiple vesting levels depending on the level of performance, unless otherwise provided in the Award Agreement, the vesting of such Performance Awards will accelerate at 100% of the target level upon the occurrence of the Corporate Transaction in which the Awards are not assumed in accordance with Section 6(c)(i). With respect to the vesting of Awards that will accelerate upon the occurrence of a Corporate Transaction pursuant to this subsection (ii) and are settled in the form of a cash payment, such cash payment will be made no later than 30 days following the occurrence of the Corporate Transaction or such later date as required to comply with Section 409A.

(iii)    Awards Held by Persons other than Current Participants. In the event of a Corporate Transaction in which the surviving corporation or acquiring corporation (or its parent company) does not assume or continue such outstanding Awards or substitute similar awards for such outstanding Awards, then with respect to Awards that have not been assumed, continued or substituted and that are held by persons other than Current Participants, such Awards will terminate if not exercised (if applicable) prior to the occurrence of the Corporate Transaction; provided, however, that any reacquisition or repurchase rights held by the Company with respect to such Awards will not terminate and may continue to be exercised notwithstanding the Corporate Transaction.

(iv)    Payment for Awards in Lieu of Exercise. Notwithstanding the foregoing, in the event an Award will terminate if not exercised prior to the effective time of a Corporate Transaction, the Board may provide, in its sole discretion, that the holder of such Award may not exercise such Award but will receive a payment, in such form as may be determined by the Board, equal in value, at the effective time, to the excess, if any, of (1) the value of the property the Participant would have received upon the exercise of the Award (including, at the discretion of the Board, any unvested portion of such Award), over (2) any exercise price payable by such holder in connection with such exercise.

(d)    Appointment of Stockholder Representative. As a condition to the receipt of an Award under this Plan, a Participant will be deemed to have agreed that the Award will be

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subject to the terms of any agreement governing a Corporate Transaction involving the Company, including, without limitation, a provision for the appointment of a stockholder representative that is authorized to act on the Participant’s behalf with respect to any escrow, indemnities and any contingent consideration.

(e)    No Restriction on Right to Undertake Transactions. The grant of any Award under the Plan and the issuance of shares pursuant to any Award does not affect or restrict in any way the right or power of the Company or the stockholders of the Company to make or authorize any adjustment, recapitalization, reorganization or other change in the Company’s capital structure or its business, any merger or consolidation of the Company, any issue of stock or of options, rights or options to purchase stock or of bonds, debentures, preferred or prior preference stocks whose rights are superior to or affect the Common Stock or the rights thereof or which are convertible into or exchangeable for Common Stock, or the dissolution or liquidation of the Company, or any sale or transfer of all or any part of its assets or business, or any other corporate act or proceeding, whether of a similar character or otherwise.

(a)    Administration by Board. The Board will administer the Plan unless and until the Board delegates administration of the Plan to a Committee or Committees, as provided in subsection (c) below.

(b)    Powers of Board. The Board will have the power, subject to, and within the limitations of, the express provisions of the Plan:

(i)    To determine from time to time (1) which of the persons eligible under the Plan will be granted Awards; (2) when and how each Award will be granted; (3) what type or combination of types of Award will be granted; (4) the provisions of each Award granted (which need not be identical), including the time or times when a person will be permitted to receive an issuance of Common Stock or other payment pursuant to an Award; (5) the number of shares of Common Stock or cash equivalent with respect to which an Award will be granted to each such person; (6) the Fair Market Value applicable to an Award; and (7) the terms of any Performance Award that is not valued in whole or in part by reference to, or otherwise based on, the Common Stock, including the amount of cash payment or other property that may be earned and the timing of payment.

(ii)    To construe and interpret the Plan and Awards granted under it, and to establish, amend and revoke rules and regulations for its administration. The Board, in the exercise of this power, may correct any defect, omission or inconsistency in the Plan or in any Award Agreement, in a manner and to the extent it deems necessary or expedient to make the Plan or Award fully effective.

(iii)    To settle all controversies regarding the Plan and Awards granted under it.

(iv)    To accelerate the time at which an Award may first be exercised or the time during which an Award or any part thereof will vest, notwithstanding the provisions in the Award Agreement stating the time at which it may first be exercised or the time during which it will vest.

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(v)    To prohibit the exercise of any Option, SAR or other exercisable Award during a period of up to 30 days prior to the consummation of any pending stock dividend, stock split, combination or exchange of shares, merger, consolidation or other distribution (other than normal cash dividends) of Company assets to stockholders, or any other change affecting the shares of Common Stock or the share price of the Common Stock including any Corporate Transaction, for reasons of administrative convenience.

(vi)    To suspend or terminate the Plan at any time. Suspension or termination of the Plan will not Materially Impair rights and obligations under any Award granted while the Plan is in effect except with the written consent of the affected Participant.

(vii)    To amend the Plan in any respect the Board deems necessary or advisable; provided, however, that stockholder approval will be required for any amendment to the extent required by Applicable Law. Except as provided above, rights under any Award granted before amendment of the Plan will not be Materially Impaired by any amendment of the Plan unless (1) the Company requests the consent of the affected Participant, and (2) such Participant consents in writing.

(viii)    To submit any amendment to the Plan for stockholder approval.

(ix)    To approve forms of Award Agreements for use under the Plan and to amend the terms of any one or more Awards, including, but not limited to, amendments to provide terms more favorable to the Participant than previously provided in the Award Agreement, subject to any specified limits in the Plan that are not subject to Board discretion; provided however, that, a Participant’s rights under any Award will not be Materially Impaired by any such amendment unless (1) the Company requests the consent of the affected Participant, and (2) such Participant consents in writing.

(x)    Generally, to exercise such powers and to perform such acts as the Board deems necessary or expedient to promote the best interests of the Company and that are not in conflict with the provisions of the Plan or Awards.

(xi)    To adopt such procedures and sub-plans as are necessary or appropriate to permit and facilitate participation in the Plan by, or take advantage of specific tax treatment for Awards granted to, Employees, Directors or Consultants who are foreign nationals or employed outside the United States (provided that Board approval will not be necessary for immaterial modifications to the Plan or any Award Agreement to ensure or facilitate compliance with the laws of the relevant foreign jurisdiction).

(xii)    To effect, at any time and from time to time, subject to the consent of any Participant whose Award is Materially Impaired by such action, (1) the reduction of the exercise price (or strike price) of any outstanding Option or SAR; (2) the cancellation of any outstanding Option or SAR and the grant in substitution therefor of (A) a new Option, SAR, Restricted Stock Award, RSU Award or Other Award, under the Plan or another equity plan of the Company, covering the same or a different number of shares of Common Stock, (B) cash and/or (C) other valuable consideration (as determined by the Board); or (3) any other action that is treated as a repricing under generally accepted accounting principles.

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(c)    Delegation to Committee.

(i)    General. The Board may delegate some or all of the administration of the Plan to a Committee or Committees. If administration of the Plan is delegated to a Committee, the Committee will have, in connection with the administration of the Plan, the powers theretofore possessed by the Board that have been delegated to the Committee, including the power to delegate to another Committee or a subcommittee of the Committee any of the administrative powers the Committee is authorized to exercise (and references in this Plan to the Board will thereafter be to the Committee or subcommittee), subject, however, to such resolutions, not inconsistent with the provisions of the Plan, as may be adopted from time to time by the Board. Each Committee may retain the authority to concurrently administer the Plan with the Committee or subcommittee to which it has delegated its authority hereunder and may, at any time, revest in such Committee some or all of the powers previously delegated. The Board may retain the authority to concurrently administer the Plan with any Committee and may, at any time, revest in the Board some or all of the powers previously delegated.

(ii)    Rule 16b-3 Compliance. To the extent an Award is intended to qualify for the exemption from Section 16(b) of the Exchange Act that is available under Rule 16b-3, the Award will be granted by the Board or a Committee that consists solely of two or more Non-Employee Directors, as determined under Rule 16b-3(b)(3) of the Exchange Act and thereafter any action establishing or modifying the terms of the Award will be approved by the Board or a Committee meeting such requirements to the extent necessary for such exemption to remain available.

(d)    Effect of Board’s Decision. All determinations, interpretations and constructions made by the Board or any Committee in good faith will not be subject to review by any person and will be final, binding and conclusive on all persons.

(e)    Delegation to an Officer. The Board or any Committee may delegate to one or more Officers the authority to do one or both of the following (i) designate Employees who are not Officers to be recipients of Options and SARs (and, to the extent permitted by Applicable Law, other types of Awards) and, to the extent permitted by Applicable Law, the terms thereof, and (ii) determine the number of shares of Common Stock to be subject to such Awards granted to such Employees; provided, however, that the resolutions or charter adopted by the Board or any Committee evidencing such delegation will specify the total number of shares of Common Stock that may be subject to the Awards granted by such Officer and that such Officer may not grant an Award to himself or herself. Any such Awards will be granted on the applicable form of Award Agreement most recently approved for use by the Board or the Committee, unless otherwise provided in the resolutions approving the delegation authority. Notwithstanding anything to the contrary herein, neither the Board nor any Committee may delegate to an Officer who is acting solely in the capacity of an Officer (and not also as a Director) the authority to determine the Fair Market Value.

(a)    Withholding Authorization. As a condition to acceptance of any Award under the Plan, a Participant authorizes withholding from payroll and any other amounts payable to such Participant, and otherwise agrees to make adequate provision for (including), any sums required to satisfy any U.S. federal, state, local and/or foreign tax or social insurance

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contribution withholding obligations of the Company or an Affiliate, if any, which arise in connection with the exercise, vesting or settlement of such Award, as applicable. Accordingly, a Participant may not be able to exercise an Award even though the Award is vested, and the Company shall have no obligation to issue shares of Common Stock subject to an Award, unless and until such obligations are satisfied.

(b)    Satisfaction of Withholding Obligation. To the extent permitted by the terms of an Award Agreement, the Company may, in its sole discretion, satisfy any U.S. federal, state, local and/or foreign tax or social insurance withholding obligation relating to an Award by any of the following means or by a combination of such means: (i) causing the Participant to tender a cash payment; (ii) withholding shares of Common Stock from the shares of Common Stock issued or otherwise issuable to the Participant in connection with the Award; (iii) withholding cash from an Award settled in cash; (iv) withholding payment from any amounts otherwise payable to the Participant; (v) by allowing a Participant to effectuate a “cashless exercise” pursuant to a program developed under Regulation T as promulgated by the Federal Reserve Board; or (vi) by such other method as may be set forth in the Award Agreement.

(c)    No Obligation to Notify or Minimize Taxes; No Liability to Claims. Except as required by Applicable Law the Company has no duty or obligation to any Participant to advise such holder as to the time or manner of exercising such Award. Furthermore, the Company has no duty or obligation to warn or otherwise advise such holder of a pending termination or expiration of an Award or a possible period in which the Award may not be exercised. The Company has no duty or obligation to minimize the tax consequences of an Award to the holder of such Award and will not be liable to any holder of an Award for any adverse tax consequences to such holder in connection with an Award. As a condition to accepting an Award under the Plan, each Participant (i) agrees to not make any claim against the Company, or any of its Officers, Directors, Employees or Affiliates related to tax liabilities arising from such Award or other Company compensation and (ii) acknowledges that such Participant was advised to consult with his or her own personal tax, financial and legal advisors regarding the tax consequences of the Award and has either done so or knowingly and voluntarily declined to do so. Additionally, each Participant acknowledges any Option or SAR granted under the Plan is exempt from Section 409A only if the exercise or strike price is at least equal to the “fair market value” of the Common Stock on the date of grant as determined by the Internal Revenue Service and there is no other impermissible deferral of compensation associated with the Award. Additionally, as a condition to accepting an Option or SAR granted under the Plan, each Participant agrees not make any claim against the Company, or any of its Officers, Directors, Employees or Affiliates in the event that the Internal Revenue Service asserts that such exercise price or strike price is less than the “fair market value” of the Common Stock on the date of grant as subsequently determined by the Internal Revenue Service.

(d)    Withholding Indemnification. As a condition to accepting an Award under the Plan, in the event that the amount of the Company’s and/or its Affiliate’s withholding obligation in connection with such Award was greater than the amount actually withheld by the Company and/or its Affiliates, each Participant agrees to indemnify and hold the Company and/or its Affiliates harmless from any failure by the Company and/or its Affiliates to withhold the proper amount.

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(a)    Source of Shares. The stock issuable under the Plan will be shares of authorized but unissued or reacquired Common Stock, including shares repurchased by the Company on the open market or otherwise.

(b)    Use of Proceeds from Sales of Common Stock. Proceeds from the sale of shares of Common Stock pursuant to Awards will constitute general funds of the Company.

(c)    Corporate Action Constituting Grant of Awards. Corporate action constituting a grant by the Company of an Award to any Participant will be deemed completed as of the date of such corporate action, unless otherwise determined by the Board, regardless of when the instrument, certificate, or letter evidencing the Award is communicated to, or actually received or accepted by, the Participant. In the event that the corporate records (e.g., Board consents, resolutions or minutes) documenting the corporate action approving the grant contain terms (e.g., exercise price, vesting schedule or number of shares) that are inconsistent with those in the Award Agreement or related grant documents as a result of a clerical error in the Award Agreement or related grant documents, the corporate records will control and the Participant will have no legally binding right to the incorrect term in the Award Agreement or related grant documents.

(d)    Stockholder Rights. No Participant will be deemed to be the holder of, or to have any of the rights of a holder with respect to, any shares of Common Stock subject to such Award unless and until (i) such Participant has satisfied all requirements for exercise of the Award pursuant to its terms, if applicable, and (ii) the issuance of the Common Stock subject to such Award is reflected in the records of the Company.

(e)    No Employment or Other Service Rights. Nothing in the Plan, any Award Agreement or any other instrument executed thereunder or in connection with any Award granted pursuant thereto will confer upon any Participant any right to continue to serve the Company or an Affiliate in the capacity in effect at the time the Award was granted or affect the right of the Company or an Affiliate to terminate at will and without regard to any future vesting opportunity that a Participant may have with respect to any Award (i) the employment of an Employee with or without notice and with or without cause, (ii) the service of a Consultant pursuant to the terms of such Consultant’s agreement with the Company or an Affiliate, or (iii) the service of a Director pursuant to the Bylaws of the Company or an Affiliate, and any applicable provisions of the corporate law of the state or foreign jurisdiction in which the Company or the Affiliate is incorporated, as the case may be. Further, nothing in the Plan, any Award Agreement or any other instrument executed thereunder or in connection with any Award will constitute any promise or commitment by the Company or an Affiliate regarding the fact or nature of future positions, future work assignments, future compensation or any other term or condition of employment or service or confer any right or benefit under the Award or the Plan unless such right or benefit has specifically accrued under the terms of the Award Agreement and/or Plan.

(f)    Change in Time Commitment. In the event a Participant’s regular level of time commitment in the performance of his or her services for the Company and any Affiliates is reduced (for example, and without limitation, if the Participant is an Employee of the Company and the Employee has a change in status from a full-time Employee to a part-time Employee or

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takes an extended leave of absence) after the date of grant of any Award to the Participant, the Board may determine, to the extent permitted by Applicable Law, to (i) make a corresponding reduction in the number of shares or cash amount subject to any portion of such Award that is scheduled to vest or become payable after the date of such change in time commitment, and (ii) in lieu of or in combination with such a reduction, extend the vesting or payment schedule applicable to such Award. In the event of any such reduction, the Participant will have no right with respect to any portion of the Award that is so reduced.

(g)    Execution of Additional Documents. As a condition to accepting an Award under the Plan, the Participant agrees to execute any additional documents or instruments necessary or desirable, as determined in the Plan Administrator’s sole discretion, to carry out the purposes or intent of the Award, or facilitate compliance with securities and/or other regulatory requirements, in each case at the Plan Administrator’s request.

(h)    Electronic Delivery and Participation. Any reference herein or in an Award Agreement to a “written” agreement or document will include any agreement or document delivered electronically, filed publicly at www.sec.gov (or any successor website thereto) or posted on the Company’s intranet (or other shared electronic medium controlled by the Company to which the Participant has access). By accepting any Award the Participant consents to receive documents by electronic delivery and to participate in the Plan through any on-line electronic system established and maintained by the Plan Administrator or another third party selected by the Plan Administrator. The form of delivery of any Common Stock (e.g., a stock certificate or electronic entry evidencing such shares) shall be determined by the Company.

(i)    Clawback/Recovery. All Awards granted under the Plan will be subject to recoupment in accordance with any clawback policy that the Company is required to adopt pursuant to the listing standards of any national securities exchange or association on which the Company’s securities are listed or as is otherwise required by the Dodd-Frank Wall Street Reform and Consumer Protection Act or other Applicable Law and any clawback policy that the Company otherwise adopts, to the extent applicable and permissible under Applicable Law. In addition, the Board may impose such other clawback, recovery or recoupment provisions in an Award Agreement as the Board determines necessary or appropriate, including but not limited to a reacquisition right in respect of previously acquired shares of Common Stock or other cash or property upon the occurrence of Cause. No recovery of compensation under such a clawback policy will be an event giving rise to a Participant’s right to voluntarily terminate employment upon a “resignation for good reason,” or for a “constructive termination” or any similar term under any plan of or agreement with the Company.

(j)    Securities Law Compliance. A Participant will not be issued any shares in respect of an Award unless either (i) the shares are registered under the Securities Act; or (ii) the Company has determined that such issuance would be exempt from the registration requirements of the Securities Act. Each Award also must comply with other Applicable Law governing the Award, and a Participant will not receive such shares if the Company determines that such receipt would not be in material compliance with Applicable Law.

(k)    Transfer or Assignment of Awards; Issued Shares. Except as expressly provided in the Plan or the form of Award Agreement, Awards granted under the Plan may not be transferred or assigned by the Participant. After the vested shares subject to an Award have been issued, or in the case of Restricted Stock and similar awards, after the issued shares have

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vested, the holder of such shares is free to assign, hypothecate, donate, encumber or otherwise dispose of any interest in such shares provided that any such actions are in compliance with the provisions herein, the terms of the Trading Policy and Applicable Law.

(l)    Effect on Other Employee Benefit Plans. The value of any Award granted under the Plan, as determined upon grant, vesting or settlement, shall not be included as compensation, earnings, salaries, or other similar terms used when calculating any Participant’s benefits under any employee benefit plan sponsored by the Company or any Affiliate, except as such plan otherwise expressly provides. The Company expressly reserves its rights to amend, modify, or terminate any of the Company’s or any Affiliate’s employee benefit plans.

(m)    Deferrals. To the extent permitted by Applicable Law, the Board, in its sole discretion, may determine that the delivery of Common Stock or the payment of cash, upon the exercise, vesting or settlement of all or a portion of any Award may be deferred and may also establish programs and procedures for deferral elections to be made by Participants. Deferrals will be made in accordance with the requirements of Section 409A.

(n)    Section 409A. Unless otherwise expressly provided for in an Award Agreement, the Plan and Award Agreements will be interpreted to the greatest extent possible in a manner that makes the Plan and the Awards granted hereunder exempt from Section 409A, and, to the extent not so exempt, in compliance with the requirements of Section 409A. If the Board determines that any Award granted hereunder is not exempt from and is therefore subject to Section 409A, the Award Agreement evidencing such Award will incorporate the terms and conditions necessary to avoid the consequences specified in Section 409A(a)(1) of the Code, and to the extent an Award Agreement is silent on terms necessary for compliance, such terms are hereby incorporated by reference into the Award Agreement. Notwithstanding anything to the contrary in this Plan (and unless the Award Agreement specifically provides otherwise), if the shares of Common Stock are publicly traded, and if a Participant holding an Award that constitutes “deferred compensation” under Section 409A is a “specified employee” for purposes of Section 409A, no distribution or payment of any amount that is due because of a Separation from Service will be issued or paid before the date that is six months and one day following the date of such Participant’s Separation from Service or, if earlier, the date of the Participant’s death, unless such distribution or payment can be made in a manner that complies with Section 409A, and any amounts so deferred will be paid in a lump sum on the day after such six month period elapses, with the balance paid thereafter on the original schedule.

(o)    CHOICE OF LAW. This Plan and any controversy arising out of or relating to this Plan shall be governed by, and construed in accordance with, the internal laws of the State of Delaware, without regard to conflict of law principles that would result in any application of any law other than the law of the State of Delaware.

(a)    Compliance with Law. The Company will seek to obtain from each regulatory commission or agency, as may be deemed to be necessary, having jurisdiction over the Plan such authority as may be required to grant Awards and to issue and sell shares of Common Stock upon exercise or vesting of the Awards; provided, however, that this undertaking will not require the Company to register under the Securities Act the Plan, any Award or any Common Stock issued or issuable pursuant to any such Award. If, after reasonable efforts and at a reasonable

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cost, the Company is unable to obtain from any such regulatory commission or agency the authority that counsel for the Company deems necessary or advisable for the lawful issuance and sale of Common Stock under the Plan, the Company will be relieved from any liability for failure to issue and sell Common Stock upon exercise or vesting of such Awards unless and until such authority is obtained. A Participant is not eligible for the grant of an Award or the subsequent issuance of Common Stock pursuant to the Award if such grant or issuance would be in violation of any Applicable Law.

(a)    Application. Unless the provisions of this Section of the Plan are expressly superseded by the provisions in the form of Award Agreement, the provisions of this Section shall apply and shall supersede anything to the contrary set forth in the Award Agreement for a Non-Exempt Award.

(b)    Non-Exempt Awards Subject to Non-Exempt Severance Arrangements. To the extent a Non-Exempt Award is subject to Section 409A due to application of a Non-Exempt Severance Arrangement, the following provisions of this subsection (b) apply.

(i)    If the Non-Exempt Award vests in the ordinary course during the Participant’s Continuous Service in accordance with the vesting schedule set forth in the Award Agreement, and does not accelerate vesting under the terms of a Non-Exempt Severance Arrangement, in no event will the shares be issued in respect of such Non-Exempt Award any later than the later of: (i) December 31^st of the calendar year that includes the applicable vesting date, or (ii) the 60^th day that follows the applicable vesting date.

(ii)    If vesting of the Non-Exempt Award accelerates under the terms of a Non-Exempt Severance Arrangement in connection with the Participant’s Separation from Service, and such vesting acceleration provisions were in effect as of the date of grant of the Non-Exempt Award and, therefore, are part of the terms of such Non-Exempt Award as of the date of grant, then the shares will be earlier issued in settlement of such Non-Exempt Award upon the Participant’s Separation from Service in accordance with the terms of the Non-Exempt Severance Arrangement, but in no event later than the 60^th day that follows the date of the Participant’s Separation from Service. However, if at the time the shares would otherwise be issued the Participant is subject to the distribution limitations contained in Section 409A applicable to “specified employees,” as defined in Section 409A(a)(2)(B)(i) of the Code, such shares shall not be issued before the date that is six months following the date of such Participant’s Separation from Service, or, if earlier, the date of the Participant’s death that occurs within such six month period.

(iii)    If vesting of a Non-Exempt Award accelerates under the terms of a Non-Exempt Severance Arrangement in connection with a Participant’s Separation from Service, and such vesting acceleration provisions were not in effect as of the date of grant of the Non-Exempt Award and, therefore, are not a part of the terms of such Non-Exempt Award on the date of grant, then such acceleration of vesting of the Non-Exempt Award shall not accelerate the issuance date of the shares, but the shares shall instead be issued on the same schedule as set forth in the Grant Notice as if they had vested in the ordinary course during the Participant’s Continuous Service, notwithstanding the vesting acceleration of the Non-Exempt Award. Such issuance schedule is intended to satisfy the requirements of payment on a specified date or pursuant to a fixed schedule, as provided under Treasury Regulations Section 1.409A-3(a)(4).

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(c)    Treatment of Non-Exempt Awards Upon a Corporate Transaction for Employees and Consultants. The provisions of this subsection (c) shall apply and shall supersede anything to the contrary set forth in the Plan with respect to the permitted treatment of any Non-Exempt Award in connection with a Corporate Transaction if the Participant was either an Employee or Consultant upon the applicable date of grant of the Non-Exempt Award.

(i)    Vested Non-Exempt Awards. The following provisions shall apply to any Vested Non-Exempt Award in connection with a Corporate Transaction:

(1)    If the Corporate Transaction is also a Section 409A Change in Control then the Acquiring Entity may not assume, continue or substitute the Vested Non-Exempt Award. Upon the Section 409A Change in Control the settlement of the Vested Non-Exempt Award will automatically be accelerated and the shares will be immediately issued in respect of the Vested Non-Exempt Award. Alternatively, the Company may instead provide that the Participant will receive a cash settlement equal to the Fair Market Value of the shares that would otherwise be issued to the Participant upon the Section 409A Change in Control.

(2)    If the Corporate Transaction is not also a Section 409A Change in Control, then the Acquiring Entity must either assume, continue or substitute each Vested Non-Exempt Award. The shares to be issued in respect of the Vested Non-Exempt Award shall be issued to the Participant by the Acquiring Entity on the same schedule that the shares would have been issued to the Participant if the Corporate Transaction had not occurred. In the Acquiring Entity’s discretion, in lieu of an issuance of shares, the Acquiring Entity may instead substitute a cash payment on each applicable issuance date, equal to the Fair Market Value of the shares that would otherwise be issued to the Participant on such issuance dates, with the determination of the Fair Market Value of the shares made on the date of the Corporate Transaction.

(ii)    Unvested Non-Exempt Awards. The following provisions shall apply to any Unvested Non-Exempt Award unless otherwise determined by the Board pursuant to subsection (e) of this Section.

(1)    In the event of a Corporate Transaction, the Acquiring Entity shall assume, continue or substitute any Unvested Non-Exempt Award. Unless otherwise determined by the Board, any Unvested Non-Exempt Award will remain subject to the same vesting and forfeiture restrictions that were applicable to the Award prior to the Corporate Transaction. The shares to be issued in respect of any Unvested Non-Exempt Award shall be issued to the Participant by the Acquiring Entity on the same schedule that the shares would have been issued to the Participant if the Corporate Transaction had not occurred. In the Acquiring Entity’s discretion, in lieu of an issuance of shares, the Acquiring Entity may instead substitute a cash payment on each applicable issuance date, equal to the Fair Market Value of the shares that would otherwise be issued to the Participant on such issuance dates, with the determination of Fair Market Value of the shares made on the date of the Corporate Transaction.

(2)    If the Acquiring Entity will not assume, substitute or continue any Unvested Non-Exempt Award in connection with a Corporate Transaction, then such Award shall automatically terminate and be forfeited upon the Corporate Transaction with no

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consideration payable to any Participant in respect of such forfeited Unvested Non-Exempt Award. Notwithstanding the foregoing, to the extent permitted and in compliance with the requirements of Section 409A, the Board may in its discretion determine to elect to accelerate the vesting and settlement of the Unvested Non-Exempt Award upon the Corporate Transaction, or instead substitute a cash payment equal to the Fair Market Value of such shares that would otherwise be issued to the Participant, as further provided in subsection (e)(ii) below. In the absence of such discretionary election by the Board, any Unvested Non-Exempt Award shall be forfeited without payment of any consideration to the affected Participants if the Acquiring Entity will not assume, substitute or continue the Unvested Non-Exempt Awards in connection with the Corporate Transaction.

(3)    The foregoing treatment shall apply with respect to all Unvested Non-Exempt Awards upon any Corporate Transaction, and regardless of whether or not such Corporate Transaction is also a Section 409A Change in Control.

(d)    Treatment of Non-Exempt Awards Upon a Corporate Transaction for Non-Employee Directors. The following provisions of this subsection (d) shall apply and shall supersede anything to the contrary that may be set forth in the Plan with respect to the permitted treatment of a Non-Exempt Director Award in connection with a Corporate Transaction.

(i)    If the Corporate Transaction is also a Section 409A Change in Control then the Acquiring Entity may not assume, continue or substitute the Non-Exempt Director Award. Upon the Section 409A Change in Control the vesting and settlement of any Non-Exempt Director Award will automatically be accelerated and the shares will be immediately issued to the Participant in respect of the Non-Exempt Director Award. Alternatively, the Company may provide that the Participant will instead receive a cash settlement equal to the Fair Market Value of the shares that would otherwise be issued to the Participant upon the Section 409A Change in Control pursuant to the preceding provision.

(ii)    If the Corporate Transaction is not also a Section 409A Change in Control, then the Acquiring Entity must either assume, continue or substitute the Non-Exempt Director Award. Unless otherwise determined by the Board, the Non-Exempt Director Award will remain subject to the same vesting and forfeiture restrictions that were applicable to the Award prior to the Corporate Transaction. The shares to be issued in respect of the Non-Exempt Director Award shall be issued to the Participant by the Acquiring Entity on the same schedule that the shares would have been issued to the Participant if the Corporate Transaction had not occurred. In the Acquiring Entity’s discretion, in lieu of an issuance of shares, the Acquiring Entity may instead substitute a cash payment on each applicable issuance date, equal to the Fair Market Value of the shares that would otherwise be issued to the Participant on such issuance dates, with the determination of Fair Market Value made on the date of the Corporate Transaction.

(e)    If the RSU Award is a Non-Exempt Award, then the provisions in this Section 11(e) shall apply and supersede anything to the contrary that may be set forth in the Plan or the Award Agreement with respect to the permitted treatment of such Non-Exempt Award:

(i)    Any exercise by the Board of discretion to accelerate the vesting of a Non-Exempt Award shall not result in any acceleration of the scheduled issuance dates for the shares in respect of the Non-Exempt Award unless earlier issuance of the shares upon the applicable vesting dates would be in compliance with the requirements of Section 409A.

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(ii)    The Company explicitly reserves the right to earlier settle any Non-Exempt Award to the extent permitted and in compliance with the requirements of Section 409A, including pursuant to any of the exemptions available in Treasury Regulations Section 1.409A-3(j)(4)(ix).

(iii)    To the extent the terms of any Non-Exempt Award provide that it will be settled upon a Change in Control or Corporate Transaction, to the extent it is required for compliance with the requirements of Section 409A, the Change in Control or Corporate Transaction event triggering settlement must also constitute a Section 409A Change in Control. To the extent the terms of a Non-Exempt Award provides that it will be settled upon a termination of employment or termination of Continuous Service, to the extent it is required for compliance with the requirements of Section 409A, the termination event triggering settlement must also constitute a Separation from Service. However, if at the time the shares would otherwise be issued to a Participant in connection with a Separation from Service such Participant is subject to the distribution limitations contained in Section 409A applicable to “specified employees,” as defined in Section 409A(a)(2)(B)(i) of the Code, such shares shall not be issued before the date that is six months following the date of the Participant’s Separation from Service, or, if earlier, the date of the Participant’s death that occurs within such six month period.

(iv)    The provisions in this subsection (e) for delivery of the shares in respect of the settlement of an RSU Award that is a Non-Exempt Award are intended to comply with the requirements of Section 409A so that the delivery of the shares to the Participant in respect of such Non-Exempt Award will not trigger the additional tax imposed under Section 409A, and any ambiguities herein will be so interpreted.

If all or any part of the Plan or any Award Agreement is declared by any court or governmental authority to be unlawful or invalid, such unlawfulness or invalidity shall not invalidate any portion of the Plan or such Award Agreement not declared to be unlawful or invalid. Any Section of the Plan or any Award Agreement (or part of such a Section) so declared to be unlawful or invalid shall, if possible, be construed in a manner which will give effect to the terms of such Section or part of a Section to the fullest extent possible while remaining lawful and valid.

The Board may suspend or terminate the Plan at any time. No Incentive Stock Options may be granted after the tenth anniversary of the earlier of: (i) the Adoption Date, or (ii) the date the Plan is approved by the Company’s stockholders. No Awards may be granted under the Plan while the Plan is suspended or after it is terminated.

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As used in the Plan, the following definitions apply to the capitalized terms indicated below:

(a)    “Acquiring Entity” means the surviving or acquiring corporation (or its parent company) in connection with a Corporate Transaction.

(b)    “Adoption Date” means the date the Plan is first approved by the Board or Compensation Committee.

(c)    “Affiliate” means, at the time of determination, any “parent” or “subsidiary” of the Company as such terms are defined in Rule 405. The Board may determine the time or times at which “parent” or “subsidiary” status is determined within the foregoing definition.

(d)    “Applicable Law” means any applicable securities, federal, state, foreign, material local or municipal or other law, statute, constitution, principle of common law, resolution, ordinance, code, edict, decree, rule, listing rule, regulation, judicial decision, ruling or requirement issued, enacted, adopted, promulgated, implemented or otherwise put into effect by or under the authority of any Governmental Body (including under the authority of any applicable self-regulating organization such as the Nasdaq Stock Market, New York Stock Exchange, or the Financial Industry Regulatory Authority).

(e)     “Award” means any right to receive Common Stock, cash or other property granted under the Plan (including an Incentive Stock Option, a Nonstatutory Stock Option, a Restricted Stock Award, an RSU Award, a SAR, a Performance Award or any Other Award).

(f)    “Award Agreement” means a written or electronic agreement between the Company and a Participant evidencing the terms and conditions of an Award. The Award Agreement generally consists of the Grant Notice and the agreement containing the written summary of the general terms and conditions applicable to the Award and which is provided, including through electronic means, to a Participant along with the Grant Notice.

(g)     “Board” means the Board of Directors of the Company (or its designee). Any decision or determination made by the Board shall be a decision or determination that is made in the sole discretion of the Board (or its designee), and such decision or determination shall be final and binding on all Participants.

(h)    “Capitalization Adjustment” means any change that is made in, or other events that occur with respect to, the Common Stock subject to the Plan or subject to any Award after the date the Plan is adopted by the Board without the receipt of consideration by the Company through merger, consolidation, reorganization, recapitalization, reincorporation, stock dividend, dividend in property other than cash, large nonrecurring cash dividend, stock split, reverse stock split, liquidating dividend, combination of shares, exchange of shares, change in corporate structure or any similar equity restructuring transaction, as that term is used in Statement of Financial Accounting Standards Board Accounting Standards Codification Topic 718 (or any successor thereto). Notwithstanding the foregoing, the conversion of any convertible securities of the Company will not be treated as a Capitalization Adjustment.

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(i)    “Cause” has the meaning ascribed to such term in any written agreement between a Participant and the Company defining such term and, in the absence of such agreement, such term means, with respect to a Participant, the occurrence of any of the following events: (i) the Participant’s dishonest statements or acts with respect to the Company or any Affiliate of the Company, or any current or prospective customers, suppliers, vendors or other third parties with which such entity does business; (ii) the Participant’s commission of (A) a felony or (B) any misdemeanor involving moral turpitude, deceit, dishonesty or fraud; (iii) the Participant’s failure to perform the Participant’s assigned duties and responsibilities to the reasonable satisfaction of the Company which failure continues, in the reasonable judgment of the Company, after written notice given to the Participant by the Company; (iv) the Participant’s gross negligence, willful misconduct or insubordination with respect to the Company or any Affiliate of the Company; or (v) the Participant’s material violation of any provision of any agreement(s) between the Participant and the Company relating to noncompetition, nonsolicitation, nondisclosure and/or assignment of inventions. The determination that a termination of the Participant’s Continuous Service is either for Cause or without Cause will be made by the Board with respect to Participants who are executive officers of the Company and by the Company’s Chief Executive Officer with respect to Participants who are not executive officers of the Company. Any determination by the Company that the Continuous Service of a Participant was terminated with or without Cause for the purposes of outstanding Awards held by such Participant will have no effect upon any determination of the rights or obligations of the Company or such Participant for any other purpose.

(j)    “Change in Control” or “Change of Control” means the occurrence, in a single transaction or in a series of related transactions, of any one or more of the following events:

(i)    any Exchange Act Person becomes the Owner, directly or indirectly, of securities of the Company representing more than 50% of the combined voting power of the Company’s then outstanding securities other than by virtue of a merger, consolidation or similar transaction. Notwithstanding the foregoing, a Change in Control shall not be deemed to occur (A) on account of the acquisition of securities of the Company directly from the Company, (B) on account of the acquisition of securities of the Company by an investor, any affiliate thereof or any other Exchange Act Person that acquires the Company’s securities in a transaction or series of related transactions the primary purpose of which is to obtain financing for the Company through the issuance of equity securities, or (C) solely because the level of Ownership held by any Exchange Act Person (the “Subject Person”) exceeds the designated percentage threshold of the outstanding voting securities as a result of a repurchase or other acquisition of voting securities by the Company reducing the number of shares outstanding, provided that if a Change in Control would occur (but for the operation of this sentence) as a result of the acquisition of voting securities by the Company, and after such share acquisition, the Subject Person becomes the Owner of any additional voting securities that, assuming the repurchase or other acquisition had not occurred, increases the percentage of the then outstanding voting securities Owned by the Subject Person over the designated percentage threshold, then a Change in Control shall be deemed to occur;

(ii)    there is consummated a merger, consolidation or similar transaction involving (directly or indirectly) the Company and, immediately after the consummation of such merger, consolidation or similar transaction, the stockholders of the Company immediately prior thereto do not Own, directly or indirectly, either (A) outstanding voting securities representing more than 50% of the combined outstanding voting power of the Acquiring Entity

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in such merger, consolidation or similar transaction or (B) more than 50% of the combined outstanding voting power of the parent of the Acquiring Entity in such merger, consolidation or similar transaction, in each case in substantially the same proportions as their Ownership of the outstanding voting securities of the Company immediately prior to such transaction;

(iii)    there is consummated a sale, lease, exclusive license or other disposition of all or substantially all of the consolidated assets of the Company and its Subsidiaries, other than a sale, lease, license or other disposition of all or substantially all of the consolidated assets of the Company and its Subsidiaries to an Entity, more than 50% of the combined voting power of the voting securities of which are Owned by stockholders of the Company in substantially the same proportions as their Ownership of the outstanding voting securities of the Company immediately prior to such sale, lease, license or other disposition; or

(iv)    individuals who, on the date the Plan is adopted by the Board, are members of the Board (the “Incumbent Board”) cease for any reason to constitute at least a majority of the members of the Board; provided, however, that if the appointment or election (or nomination for election) of any new Board member was approved or recommended by a majority vote of the members of the Incumbent Board then still in office, such new member shall, for purposes of this Plan, be considered as a member of the Incumbent Board.

Notwithstanding the foregoing or any other provision of this Plan, (A) the term Change in Control shall not include a sale of assets, merger or other transaction effected exclusively for the purpose of changing the domicile of the Company, (B) the definition of Change in Control (or any analogous term) in an individual written agreement between the Company or any Affiliate and the Participant shall supersede the foregoing definition with respect to Awards subject to such agreement; provided, however, that if no definition of Change in Control or any analogous term is set forth in such an individual written agreement, the foregoing definition shall apply, and (C) with respect to any nonqualified deferred compensation that becomes payable on account of the Change in Control, the transaction or event described in clause (i), (ii), (iii), or (iv) also constitutes a Section 409A Change in Control if required in order for the payment not to violate Section 409A of the Code.

(k)    “Code” means the Internal Revenue Code of 1986, as amended, including any applicable regulations and guidance thereunder.

(l)    “Committee” means the Compensation Committee and any other committee of one or more Directors to whom authority has been delegated by the Board or Compensation Committee in accordance with the Plan.

(m)    “Common Stock” means the common stock, par value $0.0001 per share, of the Company.

(n)    “Company” means Tourmaline Bio, Inc., a Delaware corporation.

(o)    “Compensation Committee” means the Compensation Committee of the Board.

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(p)    “Consultant” means any person, including an advisor, who is (i) engaged by the Company or an Affiliate to render consulting or advisory services and is compensated for such services, or (ii) serving as a member of the board of directors of an Affiliate and is compensated for such services. However, service solely as a Director, or payment of a fee for such service, will not cause a Director to be considered a “Consultant” for purposes of the Plan. Notwithstanding the foregoing, a person is treated as a Consultant under this Plan only if a Form S-8 Registration Statement under the Securities Act is available to register either the offer or the sale of the Company’s securities to such person.

(q)    “Continuous Service” means that the Participant’s service with the Company or an Affiliate, whether as an Employee, Director or Consultant, is not interrupted or terminated. A change in the capacity in which the Participant renders service to the Company or an Affiliate as an Employee, Director or Consultant or a change in the Entity for which the Participant renders such service, provided that there is no interruption or termination of the Participant’s service with the Company or an Affiliate, will not terminate a Participant’s Continuous Service; provided, however, that if the Entity for which a Participant is rendering services ceases to qualify as an Affiliate, as determined by the Board, such Participant’s Continuous Service will be considered to have terminated on the date such Entity ceases to qualify as an Affiliate. For example, a change in status from an Employee of the Company to a Consultant of an Affiliate or to a Director will not constitute an interruption of Continuous Service. To the extent permitted by law, the Board or the Chief Executive Officer of the Company, in that party’s sole discretion, may determine whether Continuous Service will be considered interrupted in the case of (i) any leave of absence approved by the Board or Chief Executive Officer of the Company, including sick leave, military leave or any other personal leave, or (ii) transfers between the Company, an Affiliate, or their successors. Notwithstanding the foregoing, a leave of absence will be treated as Continuous Service for purposes of vesting in an Award only to such extent as may be provided in the Company’s leave of absence policy, in the written terms of any leave of absence agreement or policy applicable to the Participant, or as otherwise required by law. In addition, to the extent required for exemption from or compliance with Section 409A, the determination of whether there has been a termination of Continuous Service will be made, and such term will be construed, in a manner that is consistent with the definition of “separation from service” as defined under Treasury Regulation Section 1.409A-1(h) (without regard to any alternative definition thereunder).

(r)    “Corporate Transaction” means the consummation, in a single transaction or in a series of related transactions, of any one or more of the following events:

(i)    a sale or other disposition of all or substantially all, as determined by the Board, of the consolidated assets of the Company and its Subsidiaries;

(ii)    a sale or other disposition of at least 50% of the outstanding securities of the Company;

(iii)    a merger, consolidation or similar transaction following which the Company is not the surviving corporation; or

(iv)    a merger, consolidation or similar transaction following which the Company is the surviving corporation but the shares of Common Stock outstanding immediately preceding the merger, consolidation or similar transaction are converted or exchanged by virtue of the merger, consolidation or similar transaction into other property, whether in the form of securities, cash or otherwise.

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Notwithstanding the foregoing or any other provision of this Plan, (A) the term Corporate Transaction shall not include a sale of assets, merger or other transaction effected exclusively for the purpose of changing the domicile of the Company, (B) the definition of Corporate Transaction (or any analogous term) in an individual written agreement between the Company or any Affiliate and the Participant shall supersede the foregoing definition with respect to Awards subject to such agreement; provided, however, that if no definition of Corporate Transaction or any analogous term is set forth in such an individual written agreement, the foregoing definition shall apply, and (C) with respect to any nonqualified deferred compensation that becomes payable on account of the Corporate Transaction, the transaction or event described in clause (i), (ii), (iii), or (iv) also constitutes a Section 409A Change in Control if required in order for the payment not to violate Section 409A.

(s)    “Director” means a member of the Board.

(t)    “determine” or “determined” means as determined by the Board or the Committee (or its designee) in its sole discretion.

(u)    “Disability” means, with respect to a Participant, such Participant is unable to engage in any substantial gainful activity by reason of any medically determinable physical or mental impairment which can be expected to result in death or which has lasted or can be expected to last for a continuous period of not less than 12 months, as provided in Section 22(e)(3) of the Code, and will be determined by the Board on the basis of such medical evidence as the Board deems warranted under the circumstances.

(v)    “Effective Date” means the effective date of this Plan, which is the date of the closing of the transactions contemplated by the Merger Agreement, provided that this Plan is approved by the Company’s stockholders prior to such date.

(w)    “Effective Time” has the meaning set forth in the Merger Agreement.

(x)    “Employee” means any person employed by the Company or an Affiliate. However, service solely as a Director, or payment of a fee for such services, will not cause a Director to be considered an “Employee” for purposes of the Plan.

(y)    “Employer” means the Company or the Affiliate of the Company that employs the Participant.

(z)    “Entity” means a corporation, partnership, limited liability company or other entity.

(aa)    “Exchange Act” means the Securities Exchange Act of 1934, as amended, and the rules and regulations promulgated thereunder.

(bb)    “Exchange Act Person” means any natural person, Entity or “group” (within the meaning of Section 13(d) or 14(d) of the Exchange Act), except that “Exchange Act Person” will not include (i) the Company or any Subsidiary of the Company, (ii) any employee benefit plan of the Company or any Subsidiary of the Company or any trustee or other fiduciary holding securities under an employee benefit plan of

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the Company or any Subsidiary of the Company, (iii) an underwriter temporarily holding securities pursuant to a registered public offering of such securities, (iv) an Entity Owned, directly or indirectly, by the stockholders of the Company in substantially the same proportions as their Ownership of stock of the Company; or (v) any natural person, Entity or “group” (within the meaning of Section 13(d) or 14(d) of the Exchange Act) that, as of the Effective Date, is the Owner, directly or indirectly, of securities of the Company representing more than 50% of the combined voting power of the Company’s then outstanding securities.

(cc)    “Fair Market Value” means, as of any date, unless otherwise determined by the Board, the value of the Common Stock (as determined on a per share or aggregate basis, as applicable) determined as follows:

(i)    If the Common Stock is listed on any established stock exchange or traded on any established market, the Fair Market Value will be the closing sales price for such stock as quoted on such exchange or market (or the exchange or market with the greatest volume of trading in the Common Stock) on the date of determination, as reported in a source the Board deems reliable.

(ii)    If there is no closing sales price for the Common Stock on the date of determination, then the Fair Market Value will be the closing selling price on the last preceding date for which such quotation exists.

(iii)    In the absence of such markets for the Common Stock, or if otherwise determined by the Board, the Fair Market Value will be determined by the Board in good faith and in a manner that complies with Sections 409A and 422 of the Code.

(dd)    “Governmental Body” means any: (i) nation, state, commonwealth, province, territory, county, municipality, district or other jurisdiction of any nature; (ii) federal, state, local, municipal, foreign or other government; (iii) governmental or regulatory body, or quasi-governmental body of any nature (including any governmental division, department, administrative agency or bureau, commission, authority, instrumentality, official, ministry, fund, foundation, center, organization, unit, body or Entity and any court or other tribunal, and for the avoidance of doubt, any Tax authority) or other body exercising similar powers or authority; or (iv) self-regulatory organization (including the Nasdaq Stock Market, New York Stock Exchange, and the Financial Industry Regulatory Authority).

(ee)    “Grant Notice” means the notice provided to a Participant that he or she has been granted an Award under the Plan and which includes the name of the Participant, the type of Award, the date of grant of the Award, number of shares of Common Stock subject to the Award or potential cash payment right, (if any), the vesting schedule for the Award (if any) and other key terms applicable to the Award.

(ff)    “Incentive Stock Option” means an option granted pursuant to Section 4 of the Plan that is intended to be, and qualifies as, an “incentive stock option” within the meaning of Section 422 of the Code.

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(gg)    “Materially Impair” means any amendment to the terms of the Award that materially adversely affects the Participant’s rights under the Award. A Participant’s rights under an Award will not be deemed to have been Materially Impaired by any such amendment if the Board, in its sole discretion, determines that the amendment, taken as a whole, does not materially impair the Participant’s rights. For example, the following types of amendments to the terms of an Award do not Materially Impair the Participant’s rights under the Award: (i) imposition of reasonable restrictions on the minimum number of shares subject to an Option or SAR that may be exercised, (ii) to maintain the qualified status of the Award as an Incentive Stock Option under Section 422 of the Code, (iii) to change the terms of an Incentive Stock Option in a manner that disqualifies, impairs or otherwise affects the qualified status of the Award as an Incentive Stock Option under Section 422 of the Code, (iv) to clarify the manner of exemption from, or to bring the Award into compliance with or qualify it for an exemption from, Section 409A, or (v) to comply with other Applicable Laws.

(hh)    “Merger Agreement” means that certain Agreement and Plan of Merger, dated as of [            ], 2023, among Talaris Therapeutics, Inc., a Delaware corporation (“Terrain”), Terrain Merger Sub, Inc., a Delaware corporation and direct wholly owned subsidiary of Terrain, and Tourmaline Bio, Inc., a Delaware corporation.

(ii)    “Non-Employee Director” means a Director who either (i) is not a current employee or officer of the Company or an Affiliate, does not receive compensation, either directly or indirectly, from the Company or an Affiliate for services rendered as a consultant or in any capacity other than as a Director (except for an amount as to which disclosure would not be required under Item 404(a) of Regulation S-K promulgated pursuant to the Securities Act (“Regulation S-K”)), does not possess an interest in any other transaction for which disclosure would be required under Item 404(a) of Regulation S-K, and is not engaged in a business relationship for which disclosure would be required pursuant to Item 404(b) of Regulation S-K; or (ii) is otherwise considered a “non-employee director” for purposes of Rule 16b-3.

(jj)    “Non-Exempt Award” means any Award that is subject to, and not exempt from, Section 409A, including as the result of (i) a deferral of the issuance of the shares subject to the Award which is elected by the Participant or imposed by the Company, or (ii) the terms of any Non-Exempt Severance Agreement.

(kk)    “Non-Exempt Director Award” means a Non-Exempt Award granted to a Participant who was a Director but not an Employee on the applicable grant date.

(ll)    “Non-Exempt Severance Arrangement” means a severance arrangement or other agreement between the Participant and the Company that provides for acceleration of vesting of an Award and issuance of the shares in respect of such Award upon the Participant’s termination of employment or “separation from service” (as such term is defined in Section 409A(a)(2)(A)(i) of the Code (and without regard to any alternative definition thereunder) (“Separation from Service”) and such severance benefit does not satisfy the requirements for an exemption from application of Section 409A provided under Treasury Regulations Section 1.409A-1(b)(4), 1.409A-1(b)(9) or otherwise.

(mm)    “Nonstatutory Stock Option” means any option granted pursuant to Section 4 of the Plan that does not qualify as an Incentive Stock Option.

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(nn)    “Officer” means a person who is an officer of the Company within the meaning of Section 16 of the Exchange Act.

(oo)    “Option” means an Incentive Stock Option or a Nonstatutory Stock Option to purchase shares of Common Stock granted pursuant to the Plan.

(pp)    “Option Agreement” means a written or electronic agreement between the Company and the Optionholder evidencing the terms and conditions of the Option grant. The Option Agreement includes the Grant Notice for the Option and the agreement containing the written summary of the general terms and conditions applicable to the Option and which is provided, including through electronic means, to a Participant along with the Grant Notice. Each Option Agreement will be subject to the terms and conditions of the Plan.

(qq)    “Optionholder” means a person to whom an Option is granted pursuant to the Plan or, if applicable, such other person who holds an outstanding Option.

(rr)    “Other Award” means an award valued in whole or in part by reference to, or otherwise based on, Common Stock, including the appreciation in value thereof (e.g., options or stock rights with an exercise price or strike price less than 100% of the Fair Market Value at the time of grant) that is not an Incentive Stock Option, Nonstatutory Stock Option, SAR, Restricted Stock Award, RSU Award or Performance Award.

(ss)    “Other Award Agreement” means a written or electronic agreement between the Company and a holder of an Other Award evidencing the terms and conditions of an Other Award grant. Each Other Award Agreement will be subject to the terms and conditions of the Plan.

(tt)    “Own,” “Owned,” “Owner,” “Ownership” means that a person or Entity will be deemed to “Own,” to have “Owned,” to be the “Owner” of, or to have acquired “Ownership” of securities if such person or Entity, directly or indirectly, through any contract, arrangement, understanding, relationship or otherwise, has or shares voting power, which includes the power to vote or to direct the voting, with respect to such securities.

(uu)    “Participant” means an Employee, Director or Consultant to whom an Award is granted pursuant to the Plan or, if applicable, such other person who holds an outstanding Award.

(vv)    “Performance Award” means an Award that may vest or may be exercised or a cash award that may vest or become earned and paid contingent upon the attainment during a Performance Period of certain Performance Goals and which is granted under the terms and conditions of Section 5(b) pursuant to such terms as are approved by the Board. In addition, to the extent permitted by Applicable Law and set forth in the applicable Award Agreement, the Board may determine that cash or other property may be used in payment of Performance Awards. Performance Awards that are settled in cash or other property are not required to be valued in whole or in part by reference to, or otherwise based on, the Common Stock.

(ww)    “Performance Criteria” means the one or more criteria that the Board selects for purposes of establishing the Performance Goals for a Performance Period. The Performance Criteria that will be used to establish such Performance Goals may be based on any one of, or

29.

combination of, the following as determined by the Board: earnings (including earnings per share and net earnings); earnings before interest, taxes and depreciation; earnings before interest, taxes, depreciation and amortization; total stockholder return; return on equity or average stockholder’s equity; return on assets, investment, or capital employed; stock price; margin (including gross margin); income (before or after taxes); operating income; operating income after taxes; pre-tax profit; operating cash flow; sales or revenue targets; increases in revenue or product revenue; expenses and cost reduction goals; improvement in or attainment of working capital levels; economic value added (or an equivalent metric); market share; cash flow; cash flow per share; share price performance; debt reduction; customer satisfaction; stockholders’ equity; capital expenditures; debt levels; operating profit or net operating profit; workforce diversity; growth of net income or operating income; billings; financing; regulatory milestones; stockholder liquidity; corporate governance and compliance; intellectual property; personnel matters; progress of internal research; progress of partnered programs; partner satisfaction; budget management; partner or collaborator achievements; internal controls, including those related to the Sarbanes-Oxley Act of 2002; investor relations, analysts and communication; implementation or completion of projects or processes; employee retention; number of users, including unique users; strategic partnerships or transactions (including in-licensing and out-licensing of intellectual property); establishing relationships with respect to the marketing, distribution and sale of the Company’s products; supply chain achievements; co-development, co-marketing, profit sharing, joint venture or other similar arrangements; individual performance goals; corporate development and planning goals; and other measures of performance selected by the Board or Committee whether or not listed herein.

(xx)    “Performance Goals” means, for a Performance Period, the one or more goals established by the Board for the Performance Period based upon the Performance Criteria. Performance Goals may be based on a Company-wide basis, with respect to one or more business units, divisions, Affiliates, or business segments, and in either absolute terms or relative to the performance of one or more comparable companies or the performance of one or more relevant indices. Unless specified otherwise by the Board (i) in the Award Agreement at the time the Award is granted or (ii) in such other document setting forth the Performance Goals at the time the Performance Goals are established, the Board will appropriately make adjustments in the method of calculating the attainment of Performance Goals for a Performance Period as follows: (1) to exclude restructuring and/or other nonrecurring charges; (2) to exclude exchange rate effects; (3) to exclude the effects of changes to generally accepted accounting principles; (4) to exclude the effects of any statutory adjustments to corporate tax rates; (5) to exclude the effects of items that are “unusual” in nature or occur “infrequently” as determined under generally accepted accounting principles; (6) to exclude the dilutive effects of acquisitions or joint ventures; (7) to assume that any business divested by the Company achieved performance objectives at targeted levels during the balance of a Performance Period following such divestiture; (8) to exclude the effect of any change in the outstanding shares of common stock of the Company by reason of any stock dividend or split, stock repurchase, reorganization, recapitalization, merger, consolidation, spin-off, combination or exchange of shares or other similar corporate change, or any distributions to common stockholders other than regular cash dividends; (9) to exclude the effects of stock based compensation and the award of bonuses under the Company’s bonus plans; (10) to exclude costs incurred in connection with potential acquisitions or divestitures that are required to be expensed under generally accepted accounting principles; and (11) to exclude the goodwill and intangible asset impairment charges that are required to be recorded under generally accepted accounting principles. In addition, the Board

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may establish or provide for other adjustment items in the Award Agreement at the time the Award is granted or in such other document setting forth the Performance Goals at the time the Performance Goals are established. In addition, the Board retains the discretion to reduce or eliminate the compensation or economic benefit due upon attainment of Performance Goals and to define the manner of calculating the Performance Criteria it selects to use for such Performance Period. Partial achievement of the specified criteria may result in the payment or vesting corresponding to the degree of achievement as specified in the Award Agreement or the written terms of a Performance Cash Award.

(yy)    “Performance Period” means the period of time selected by the Board over which the attainment of one or more Performance Goals will be measured for the purpose of determining a Participant’s right to vesting or exercise of an Award. Performance Periods may be of varying and overlapping duration, at the sole discretion of the Board.

(zz)    “Plan” means this Tourmaline Bio, Inc. 2023 Equity Incentive Plan, as amended from time to time.

(aaa)    “Plan Administrator” means the person, persons, and/or third-party administrator designated by the Company to administer the day to day operations of the Plan and the Company’s other equity incentive programs.

(bbb)    “Post-Termination Exercise Period” means the period following termination of a Participant’s Continuous Service within which an Option or SAR is exercisable, as specified in Section 4(h).

(ccc)    “Restricted Stock Award” or “RSA” means an Award of shares of Common Stock which is granted pursuant to the terms and conditions of Section 5(a).

(ddd)    “Restricted Stock Award Agreement” means a written or electronic agreement between the Company and a holder of a Restricted Stock Award evidencing the terms and conditions of a Restricted Stock Award grant. The Restricted Stock Award Agreement includes the Grant Notice for the Restricted Stock Award and the agreement containing the written summary of the general terms and conditions applicable to the Restricted Stock Award and which is provided, including by electronic means, to a Participant along with the Grant Notice. Each Restricted Stock Award Agreement will be subject to the terms and conditions of the Plan.

(eee)    “RSU Award” or “RSU” means an Award of restricted stock units representing the right to receive an issuance of shares of Common Stock which is granted pursuant to the terms and conditions of Section 5(a).

(fff)    “RSU Award Agreement” means a written or electronic agreement between the Company and a holder of an RSU Award evidencing the terms and conditions of an RSU Award. The RSU Award Agreement includes the Grant Notice for the RSU Award and the agreement containing the written summary of the general terms and conditions applicable to the RSU Award and which is provided, including by electronic means, to a Participant along with the Grant Notice. Each RSU Award Agreement will be subject to the terms and conditions of the Plan.

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(ggg)    “Rule 16b-3” means Rule 16b-3 promulgated under the Exchange Act or any successor to Rule 16b-3, as in effect from time to time.

(hhh)    “Rule 405” means Rule 405 promulgated under the Securities Act.

(iii)    “Section 409A” means Section 409A of the Code and the regulations and other guidance thereunder.

(jjj)    “Section 409A Change in Control” means a change in the ownership or effective control of the Company, or in the ownership of a substantial portion of the Company’s assets, as provided in Section 409A(a)(2)(A)(v) of the Code and Treasury Regulations Section 1.409A-3(i)(5) (without regard to any alternative definition thereunder).

(kkk)    “Securities Act” means the Securities Act of 1933, as amended.

(lll)    “Share Reserve” means the number of shares available for issuance under the Plan as set forth in Section 2(a).

(mmm)    “Stock Appreciation Right” or “SAR” means a right to receive the appreciation on Common Stock that is granted pursuant to the terms and conditions of Section 4.

(nnn)    “SAR Agreement” means a written or electronic agreement between the Company and a holder of a SAR evidencing the terms and conditions of a SAR grant. The SAR Agreement includes the Grant Notice for the SAR and the agreement containing the written summary of the general terms and conditions applicable to the SAR and which is provided, including by electronic means, to a Participant along with the Grant Notice. Each SAR Agreement will be subject to the terms and conditions of the Plan.

(ooo)    “Subsidiary” means, with respect to the Company, (i) any corporation of which more than 50% of the outstanding capital stock having ordinary voting power to elect a majority of the board of directors of such corporation (irrespective of whether, at the time, stock of any other class or classes of such corporation will have or might have voting power by reason of the happening of any contingency) is at the time, directly or indirectly, Owned by the Company, and (ii) any partnership, limited liability company or other entity in which the Company has a direct or indirect interest (whether in the form of voting or participation in profits or capital contribution) of more than 50%.

(ppp)    “Ten Percent Stockholder” means a person who Owns (or is deemed to Own pursuant to Section 424(d) of the Code) stock possessing more than 10% of the total combined voting power of all classes of stock of the Company or any Affiliate.

(qqq)    “Trading Policy” means the Company’s policy permitting certain individuals to sell Company shares only during certain “window” periods and/or otherwise restricting the ability of certain individuals to transfer or encumber Company shares, as in effect from time to time.

(rrr)    “Unvested Non-Exempt Award” means the portion of any Non-Exempt Award that had not vested in accordance with its terms upon or prior to the date of any Corporate Transaction.

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(sss)    “Vested Non-Exempt Award” means the portion of any Non-Exempt Award that had vested in accordance with its terms upon or prior to the date of a Corporate Transaction.

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Exhibit E

TOURMALINE BIO, INC.

2023 EMPLOYEE STOCK PURCHASE PLAN

ADOPTED BY THE BOARD OF DIRECTORS: [DATE]

APPROVED BY THE STOCKHOLDERS: [DATE]

1.    GENERAL; PURPOSE.

(a)    The Plan provides a means by which Eligible Employees of the Company and certain Designated Companies may be given an opportunity to purchase shares of Common Stock. The Plan permits the Company to grant a series of Purchase Rights to Eligible Employees under an Employee Stock Purchase Plan. In addition, the Plan permits the Company to grant a series of Purchase Rights to Eligible Employees that do not meet the requirements of an Employee Stock Purchase Plan.

(b)    The Plan includes two components: a 423 Component and a Non-423 Component. The Company intends (but makes no undertaking or representation to maintain) the 423 Component to qualify as an Employee Stock Purchase Plan. The provisions of the 423 Component, accordingly, will be construed in a manner that is consistent with the requirements of Section 423 of the Code. In addition, this Plan authorizes grants of Purchase Rights under the Non-423 Component that do not meet the requirements of an Employee Stock Purchase Plan. Except as otherwise provided in the Plan or determined by the Board, the Non-423 Component will operate and be administered in the same manner as the 423 Component. In addition, the Company may make separate Offerings which vary in terms (provided that such terms are not inconsistent with the provisions of the Plan or the requirements of an Employee Stock Purchase Plan to the extent the Offering is made under the 423 Component), and the Company will designate which Designated Company is participating in each separate Offering.

(c)    The Company, by means of the Plan, seeks to retain the services of Eligible Employees, to secure and retain the services of new Employees and to provide incentives for such persons to exert maximum efforts for the success of the Company and its Related Corporations.

2.    ADMINISTRATION.

(a)    The Board will administer the Plan unless and until the Board delegates administration of the Plan to a Committee or Committees, as provided in Section 2(c).

(b)    The Board will have the power, subject to, and within the limitations of, the express provisions of the Plan:

(i)    To determine how and when Purchase Rights will be granted and the provisions of each Offering (which need not be identical).

(ii)    To designate from time to time (A) which Related Corporations of the Company will be eligible to participate in the Plan as Designated 423 Companies, (B) which Related Corporations or Affiliates will be eligible to participate in the Plan as Designated Non-423 Companies, (C) which Affiliates or Related Corporations may be excluded from participation in the Plan, and (D) which Designated Companies will participate in each separate Offering (to the extent that the Company makes separate Offerings).

(iii)    To construe and interpret the Plan and Purchase Rights, and to establish, amend and revoke rules and regulations for its administration. The Board, in the exercise of this power, may correct any defect, omission or inconsistency in the Plan, in a manner and to the extent it deems necessary or expedient to make the Plan fully effective.

(iv)    To settle all controversies regarding the Plan and Purchase Rights granted under the Plan.

(v)    To suspend or terminate the Plan at any time as provided in Section 12.

(vi)    To amend the Plan at any time as provided in Section 12.

(vii)    Generally, to exercise such powers and to perform such acts as it deems necessary or expedient to promote the best interests of the Company and its Related Corporations and to carry out the intent that the Plan be treated as an Employee Stock Purchase Plan with respect to the 423 Component.

(viii)    To adopt such rules, procedures and sub-plans as are necessary or appropriate to permit or facilitate participation in the Plan by Employees who are foreign nationals or employed or located outside the United States. Without limiting the generality of, and consistent with, the foregoing, the Board specifically is authorized to adopt rules, procedures, and sub-plans regarding, without limitation, eligibility to participate in the Plan, the definition of eligible “earnings,” handling and making of Contributions, establishment of bank or trust accounts to hold Contributions, payment of interest, conversion of local currency, obligations to pay payroll tax, determination of beneficiary designation requirements, withholding procedures and handling of share issuances, any of which may vary according to applicable requirements, and which, if applicable to a Designated Non-423 Company, do not have to comply with the requirements of Section 423 of the Code.

(c)    The Board may delegate some or all of the administration of the Plan to a Committee or Committees. If administration is delegated to a Committee, the Committee will have, in connection with the administration of the Plan, the powers theretofore possessed by the Board that have been delegated to the Committee, including the power to delegate to a subcommittee any of the administrative powers the Committee is authorized to exercise (and references in this Plan and any applicable Offering Document to the Board will thereafter be to the Committee or subcommittee), subject, however, to such resolutions, not inconsistent with the provisions of the Plan, as may be adopted from time to time by the Board. Further, to the extent not prohibited by Applicable Law, the Board or Committee may, from time to time, delegate some or all of its authority under the Plan to one or more officers of the Company or other persons or groups of persons as it deems necessary, appropriate or advisable under conditions or limitations that it may set at or after the time of the delegation. The Board may retain the authority to concurrently administer the Plan with the Committee and may, at any time, revest in the Board some or all of the powers previously delegated. Whether or not the Board has delegated administration of the Plan to a Committee, the Board will have the final power to determine all questions of policy and expediency that may arise in the administration of the Plan.

(d)    All determinations, interpretations and constructions made by the Board in good faith will not be subject to review by any person and will be final, binding and conclusive on all persons.

3.    SHARES OF COMMON STOCK SUBJECT TO THE PLAN.

(a)    Subject to the provisions of Section 11(a) relating to Capitalization Adjustments, the maximum number of shares of Common Stock that may be issued under the Plan will not exceed a number of shares of Common Stock equal to one percent (1%) of the total number of shares of Common Stock issued and outstanding determined as of immediately after the Effective Time) (the “Initial Share Reserve”), plus the number of shares of Common Stock that are automatically added on January 1st of each

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year for a period of up to ten years commencing on January 1, 2024 and ending on (and including) January 1, 2033, in an amount equal to the lesser of (x) one percent (1%) of the total number of shares of Common Stock issued and outstanding determined as of the day prior to such increase and (y) a number of shares equal to three times the Initial Share Reserve. Notwithstanding the foregoing, the Board may act prior to the first day of any calendar year to provide that there will be no January 1^st increase in the share reserve for such calendar year or that the increase in the share reserve for such calendar year will be a lesser number of shares of Common Stock than would otherwise occur pursuant to the preceding sentence. For the avoidance of doubt, up to the maximum number of shares of Common Stock reserved under this Section 3(a) may be used to satisfy purchases of Common Stock under the 423 Component and any remaining portion of such maximum number of shares may be used to satisfy purchases of Common Stock under the Non-423 Component.

(b)    If any Purchase Right granted under the Plan terminates without having been exercised in full, the shares of Common Stock not purchased under such Purchase Right will again become available for issuance under the Plan.

(c)    The stock purchasable under the Plan will be shares of authorized but unissued or reacquired Common Stock, including shares repurchased by the Company on the open market.

4.    GRANT OF PURCHASE RIGHTS; OFFERING.

(a)    The Board may from time to time grant or provide for the grant of Purchase Rights to Eligible Employees under an Offering (consisting of one or more Purchase Periods) on an Offering Date or Offering Dates selected by the Board. Each Offering will be in such form and will contain such terms and conditions as the Board will deem appropriate, and with respect to the 423 Component, will comply with the requirement of Section 423(b)(5) of the Code that all Employees granted Purchase Rights will have the same rights and privileges. The terms and conditions of an Offering shall be incorporated by reference into the Plan and treated as part of the Plan. The provisions of separate Offerings need not be identical, but each Offering will include (through incorporation of the provisions of this Plan by reference in the document comprising the Offering or otherwise) the period during which the Offering will be effective, which period will not exceed 27 months beginning with the Offering Date, and the substance of the provisions contained in Sections 5 through 8, inclusive.

(b)    If a Participant has more than one Purchase Right outstanding under the Plan, unless he or she otherwise indicates in forms delivered to the Company or a third party designated by the Company (each, a “Company Designee”): (i) each form will apply to all of his or her Purchase Rights under the Plan, and (ii) a Purchase Right with a lower exercise price (or an earlier-granted Purchase Right, if different Purchase Rights have identical exercise prices) will be exercised to the fullest possible extent before a Purchase Right with a higher exercise price (or a later-granted Purchase Right if different Purchase Rights have identical exercise prices) will be exercised.

(c)    The Board will have the discretion to structure an Offering so that if the Fair Market Value of a share of Common Stock on the first Trading Day of a new Purchase Period within that Offering is less than or equal to the Fair Market Value of a share of Common Stock on the Offering Date for that Offering, then (i) that Offering will terminate immediately as of that first Trading Day, and (ii) the Participants in such terminated Offering will be automatically enrolled in a new Offering beginning on the first Trading Day of such new Purchase Period.

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5.    ELIGIBILITY.

(a)    Purchase Rights may be granted only to Employees of the Company or, as the Board may designate in accordance with Section 2(b), to Employees of a Related Corporation or an Affiliate. Except as provided in Section 5(b) or as required by Applicable Law, an Employee will not be eligible to be granted Purchase Rights unless, on the Offering Date, the Employee has been in the employ of the Company, the Related Corporation or the Affiliate, as the case may be, for such continuous period preceding such Offering Date as the Board may (unless prohibited by Applicable Law) require, but in no event will the required period of continuous employment be equal to or greater than two years. In addition, the Board may provide that no Employee will be eligible to be granted Purchase Rights under the Plan unless, on the Offering Date, such Employee’s customary employment with the Company, the Related Corporation, or the Affiliate is more than 20 hours per week and more than five months per calendar year or such other criteria as the Board may determine consistent with Section 423 of the Code with respect to the 423 Component. The Board may also exclude from participation in the Plan or any Offering Employees who are “highly compensated employees” (within the meaning of Section 423(b)(4)(D) of the Code) of the Company or a Related Corporation or a subset of such highly compensated employees.

(b)    The Board may provide that each person who, during the course of an Offering, first becomes an Eligible Employee will, on a date or dates specified in the Offering which coincides with the day on which such person becomes an Eligible Employee or which occurs thereafter, receive a Purchase Right under that Offering, which Purchase Right will thereafter be deemed to be a part of that Offering. Such Purchase Right will have the same characteristics as any Purchase Rights originally granted under that Offering, as described herein, except that:

(i)    the date on which such Purchase Right is granted will be the “Offering Date” of such Purchase Right for all purposes, including determination of the exercise price of such Purchase Right;

(ii)    the period of the Offering with respect to such Purchase Right will begin on its Offering Date and end coincident with the end of such Offering; and

(iii)    the Board may provide that if such person first becomes an Eligible Employee within a specified period of time before the end of the Offering, he or she will not receive any Purchase Right under that Offering.

(c)    No Employee will be eligible for the grant of any Purchase Rights under the 423 Component if, immediately after any such Purchase Rights are granted, such Employee owns stock possessing five percent or more of the total combined voting power or value of all classes of stock of the Company or of any Related Corporation. For purposes of this Section 5(c), the rules of Section 424(d) of the Code will apply in determining the stock ownership of any Employee, and stock which such Employee may purchase under all outstanding Purchase Rights and options will be treated as stock owned by such Employee.

(d)    As specified by Section 423(b)(8) of the Code, an Eligible Employee may be granted Purchase Rights under the 423 Component only if such Purchase Rights, together with any other rights granted under all Employee Stock Purchase Plans of the Company and any Related Corporations, do not permit such Eligible Employee’s rights to purchase stock of the Company or any Related Corporation to accrue at a rate which, when aggregated, exceeds $25,000 of Fair Market Value of such stock (determined at the time such rights are granted, and which, with respect to the Plan, will be determined as of their respective Offering Dates) for each calendar year in which such rights are outstanding at any time.

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(e)    Officers of the Company and any Designated Company, if they are otherwise Eligible Employees, will be eligible to participate in Offerings under the Plan. Notwithstanding the foregoing, the Board may (unless prohibited by Applicable Law) provide in an Offering that Employees who are highly compensated Employees within the meaning of Section 423(b)(4)(D) of the Code will not be eligible to participate.

(f)    Notwithstanding anything in this Section 5 to the contrary, in the case of an Offering under the Non-423 Component, an Eligible Employee (or group of Eligible Employees) may be excluded from participation in the Plan or an Offering if the Board has determined, in its sole discretion, that participation of such Eligible Employee(s) is not advisable or practical for any reason.

6.    PURCHASE RIGHTS; PURCHASE PRICE.

(a)    On each Offering Date, each Eligible Employee, pursuant to an Offering made under the Plan, will be granted a Purchase Right to purchase up to that number of shares of Common Stock purchasable either with a percentage or with a maximum dollar amount, as designated by the Board during the period that begins on the Offering Date (or such later date as the Board determines for a particular Offering) and ends on the date stated in the Offering, which date will be no later than the end of the Offering.

(b)    The Board will establish one or more Purchase Dates during an Offering on which Purchase Rights granted for that Offering will be exercised and shares of Common Stock will be purchased in accordance with such Offering.

(c)    In connection with each Offering made under the Plan, the Board may specify (i) a maximum number of shares of Common Stock that may be purchased by any Participant on any Purchase Date during such Offering, (ii) a maximum aggregate number of shares of Common Stock that may be purchased by all Participants pursuant to such Offering and/or (iii) a maximum aggregate number of shares of Common Stock that may be purchased by all Participants on any Purchase Date under the Offering. If the aggregate purchase of shares of Common Stock issuable upon exercise of Purchase Rights granted under the Offering would exceed any such maximum aggregate number, then, in the absence of any Board action otherwise, a pro rata (based on each Participant’s accumulated Contributions) allocation of the shares of Common Stock (rounded down to the nearest whole share) available will be made in as nearly a uniform manner as will be practicable and equitable.

(d)    The purchase price of shares of Common Stock acquired pursuant to Purchase Rights will be specified by the Board prior to commencement of an Offering and will not be less than the lesser of:

(i)    an amount equal to 85% of the Fair Market Value of the shares of Common Stock on the Offering Date; or

(ii)    an amount equal to 85% of the Fair Market Value of the shares of Common Stock on the applicable Purchase Date.

7.    PARTICIPATION; WITHDRAWAL; TERMINATION.

(a)    An Eligible Employee may elect to participate in an Offering and authorize payroll deductions as the means of making Contributions by completing and delivering to the Company or a Company Designee, within the time specified in the Offering, an enrollment form provided by the Company or Company Designee. The enrollment form will specify the amount of Contributions not to exceed the maximum amount specified by the Board. Each Participant’s Contributions will be credited to a bookkeeping account for such Participant under the Plan and will be deposited with the general funds of

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the Company except where Applicable Law requires that Contributions be deposited with a third party. If permitted in the Offering, a Participant may begin such Contributions with the first payroll occurring on or after the Offering Date (or, in the case of a payroll date that occurs after the end of the prior Offering but before the Offering Date of the next new Offering, Contributions from such payroll will be included in the new Offering). If permitted in the Offering, a Participant may thereafter reduce (including to zero) or increase his or her Contributions. If required under Applicable Law or if specifically provided in the Offering and to the extent permitted by Section 423 of the Code with respect to the 423 Component, in addition to or instead of making Contributions by payroll deductions, a Participant may make Contributions through payment by cash, check or wire transfer prior to a Purchase Date.

(b)    During an Offering, a Participant may cease making Contributions and withdraw from the Offering by delivering to the Company or a Company Designee a withdrawal form provided by the Company. The Company may impose a deadline before a Purchase Date for withdrawing. Upon such withdrawal, such Participant’s Purchase Right in that Offering will immediately terminate and the Company will distribute as soon as practicable to such Participant all of his or her accumulated but unused Contributions and such Participant’s Purchase Right in that Offering shall thereupon terminate. A Participant’s withdrawal from that Offering will have no effect upon his or her eligibility to participate in any other Offerings under the Plan, but such Participant will be required to deliver a new enrollment form to participate in subsequent Offerings.

(c)    Unless otherwise required by Applicable Law, Purchase Rights granted pursuant to any Offering under the Plan will terminate immediately if the Participant either (i) is no longer an Employee for any reason or for no reason (subject to any post-employment participation period required by Applicable Law) or (ii) is otherwise no longer eligible to participate. The Company will distribute as soon as practicable to such individual all of his or her accumulated but unused Contributions.

(d)    Unless otherwise determined by the Board, a Participant whose employment transfers or whose employment terminates with an immediate rehire (with no break in service) by or between the Company and a Designated Company or between Designated Companies will not be treated as having terminated employment for purposes of participating in the Plan or an Offering; however, if a Participant transfers from an Offering under the 423 Component to an Offering under the Non-423 Component, the exercise of the Participant’s Purchase Right will be qualified under the 423 Component only to the extent such exercise complies with Section 423 of the Code. If a Participant transfers from an Offering under the Non-423 Component to an Offering under the 423 Component, the exercise of the Purchase Right will remain non-qualified under the Non-423 Component. The Board may establish different and additional rules governing transfers between separate Offerings within the 423 Component and between Offerings under the 423 Component and Offerings under the Non-423 Component.

(e)    During a Participant’s lifetime, Purchase Rights will be exercisable only by such Participant. Purchase Rights are not transferable by a Participant, except by will, by the laws of descent and distribution, or, if permitted by the Company, by a beneficiary designation as described in Section 10.

(f)    Unless otherwise specified in the Offering or as required by Applicable Law, the Company will have no obligation to pay interest on Contributions.

8.    EXERCISE OF PURCHASE RIGHTS.

(a)    On each Purchase Date, each Participant’s accumulated Contributions will be applied to the purchase of shares of Common Stock, up to the maximum number of shares of Common Stock permitted by the Plan and the applicable Offering, at the purchase price specified in the Offering. No fractional shares will be issued unless specifically provided for in the Offering.

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(b)    Unless otherwise provided in the Offering, if any amount of accumulated Contributions remains in a Participant’s account after the purchase of shares of Common Stock and such remaining amount is less than the amount required to purchase one share of Common Stock on the final Purchase Date of an Offering, then such remaining amount will be held in such Participant’s account for the purchase of shares of Common Stock under the next Offering under the Plan, unless such Participant withdraws from or is not eligible to participate in such next Offering, in which case such amount will be distributed to such Participant after the final Purchase Date without interest (unless the payment of interest is otherwise required by Applicable Law). If the amount of Contributions remaining in a Participant’s account after the purchase of shares of Common Stock is at least equal to the amount required to purchase one (1) whole share of Common Stock on the final Purchase Date of an Offering, then such remaining amount will be distributed in full to such Participant after the final Purchase Date of such Offering without interest (unless otherwise required by Applicable Law).

(c)    No Purchase Rights may be exercised to any extent unless the shares of Common Stock to be issued upon such exercise under the Plan are covered by an effective registration statement pursuant to the Securities Act and the Plan is in material compliance with all applicable U.S. federal and state, foreign and other securities, exchange control and other laws applicable to the Plan. If on a Purchase Date the shares of Common Stock are not so registered or the Plan is not in such compliance, no Purchase Rights will be exercised on such Purchase Date, and, subject to Section 423 of the Code with respect to the 423 Component, the Purchase Date will be delayed until the shares of Common Stock are subject to such an effective registration statement and the Plan is in material compliance, except that the Purchase Date will in no event be more than 27 months from the Offering Date. If, on the Purchase Date, as delayed to the maximum extent permissible, the shares of Common Stock are not registered and the Plan is not in material compliance with all Applicable Laws, as determined by the Company in its sole discretion, no Purchase Rights will be exercised and all accumulated but unused Contributions will be distributed to the Participants without interest (unless the payment of interest is otherwise required by Applicable Law).

9.    COVENANTS OF THE COMPANY.

The Company will seek to obtain from each U.S. federal or state, foreign or other regulatory commission, agency or other Governmental Body having jurisdiction over the Plan such authority as may be required to grant Purchase Rights and issue and sell shares of Common Stock thereunder unless the Company determines, in its sole discretion, that doing so is not practical or would cause the Company to incur costs that are unreasonable. If, after commercially reasonable efforts, the Company is unable to obtain the authority that counsel for the Company deems necessary for the grant of Purchase Rights or the lawful issuance and sale of Common Stock under the Plan, and at a commercially reasonable cost, the Company will be relieved from any liability for failure to grant Purchase Rights and/or to issue and sell Common Stock upon exercise of such Purchase Rights.

10.    DESIGNATION OF BENEFICIARY.

(a)    The Company may, but is not obligated to, permit a Participant to submit a form designating a beneficiary who will receive any shares of Common Stock and/or Contributions from the Participant’s account under the Plan if the Participant dies before such shares and/or Contributions are delivered to the Participant. The Company may, but is not obligated to, permit the Participant to change such designation of beneficiary. Any such designation and/or change must be on a form approved by the Company.

(b)     If a Participant dies, and in the absence of a valid beneficiary designation, the Company will deliver any shares of Common Stock and/or Contributions to the executor or administrator of the estate of the Participant. If no executor or administrator has been appointed (to the knowledge of the Company),

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the Company, in its sole discretion, may deliver such shares of Common Stock and/or Contributions, without interest (unless the payment of interest is otherwise required by Applicable Law) to the Participant’s spouse, dependents or relatives, or if no spouse, dependent or relative is known to the Company, then to such other person as the Company may designate.

11.    ADJUSTMENTS UPON CHANGES IN COMMON STOCK; CORPORATE TRANSACTIONS.

(a)    In the event of a Capitalization Adjustment, the Board will appropriately and proportionately adjust: (i) the class(es) and maximum number of securities subject to the Plan pursuant to Section 3(a), (ii) the class(es) and maximum number of securities by which the share reserve is to increase automatically each year pursuant to Section 3(a), (iii) the class(es) and number of securities subject to, and the purchase price applicable to outstanding Offerings and Purchase Rights, and (iv) the class(es) and number of securities that are the subject of the purchase limits under each ongoing Offering. The Board will make these adjustments, and its determination will be final, binding and conclusive.

(b)    In the event of a Corporate Transaction, then: (i) any surviving corporation or acquiring corporation (or the surviving or acquiring corporation’s parent company) may assume or continue outstanding Purchase Rights or may substitute similar rights (including a right to acquire the same consideration paid to the stockholders in the Corporate Transaction) for outstanding Purchase Rights, or (ii) if any surviving or acquiring corporation (or its parent company) does not assume or continue such Purchase Rights or does not substitute similar rights for such Purchase Rights, then the Participants’ accumulated Contributions will be used to purchase shares of Common Stock (rounded down to the nearest whole share) within ten business days (or such other period specified by the Board) prior to the Corporate Transaction under the outstanding Purchase Rights, and the Purchase Rights will terminate immediately after such purchase.

12.    AMENDMENT, TERMINATION OR SUSPENSION OF THE PLAN.

(a)    The Board may amend the Plan at any time in any respect the Board deems necessary or advisable. However, except as provided in Section 11(a) relating to Capitalization Adjustments, stockholder approval will be required for any amendment of the Plan for which stockholder approval is required by Applicable Law.

(b)    The Board may suspend or terminate the Plan at any time. No Purchase Rights may be granted under the Plan while the Plan is suspended or after it is terminated.

(c)    Any benefits, privileges, entitlements and obligations under any outstanding Purchase Rights granted before an amendment, suspension or termination of the Plan will not be materially impaired by any such amendment, suspension or termination except (i) with the consent of the person to whom such Purchase Rights were granted, (ii) as necessary to facilitate compliance with any laws, listing requirements, or governmental regulations (including, without limitation, the provisions of Section 423 of the Code and the regulations and other interpretive guidance issued thereunder relating to Employee Stock Purchase Plans) including without limitation any such regulations or other guidance that may be issued or amended after the date the Plan is adopted by the Board, or (iii) as necessary to obtain or maintain favorable tax, listing, or regulatory treatment. To be clear, the Board may amend outstanding Purchase Rights without a Participant’s consent if such amendment is necessary to ensure that the Purchase Right and/or the Plan complies with the requirements of Section 423 of the Code with respect to the 423 Component or with respect to other Applicable Laws. Notwithstanding anything in the Plan or any Offering Document to the contrary, the Board will be entitled to: (i) establish the exchange ratio applicable to amounts withheld in a currency other than U.S. dollars; (ii) permit Contributions in excess of the amount designated by a Participant in order to adjust for mistakes in the Company’s processing of properly completed Contribution

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elections; (iii) establish reasonable waiting and adjustment periods and/or accounting and crediting procedures to ensure that amounts applied toward the purchase of Common Stock for each Participant properly correspond with amounts withheld from the Participant’s Contributions; (iv) amend any outstanding Purchase Rights or clarify any ambiguities regarding the terms of any Offering to enable the Purchase Rights to qualify under and/or comply with Section 423 of the Code with respect to the 423 Component; and (v) establish other limitations or procedures as the Board determines in its sole discretion advisable that are consistent with the Plan. The actions of the Board pursuant to this paragraph will not be considered to alter or impair any Purchase Rights granted under an Offering as they are part of the initial terms of each Offering and the Purchase Rights granted under each Offering.

13.    TAX QUALIFICATION; TAX WITHHOLDING.

(a)    Although the Company may endeavor to (i) qualify a Purchase Right for special tax treatment under the laws of the United States or jurisdictions outside of the United States or (ii) avoid adverse tax treatment, the Company makes no representation to that effect and expressly disavows any covenant to maintain special or to avoid unfavorable tax treatment, notwithstanding anything to the contrary in this Plan. The Company will be unconstrained in its corporate activities without regard to the potential negative tax impact on Participants.

(b)    Each Participant will make arrangements, satisfactory to the Company and any applicable Related Corporation, to enable the Company or the Related Corporation to fulfill any withholding obligation for Tax-Related Items. Without limitation to the foregoing, in the Company’s sole discretion and subject to Applicable Law, such withholding obligation may be satisfied in whole or in part by (i) withholding from the Participant’s salary or any other cash payment due to the Participant from the Company or a Related Corporation; (ii) withholding from the proceeds of the sale of shares of Common Stock acquired under the Plan, either through a voluntary sale or a mandatory sale arranged by the Company; or (iii) any other method deemed acceptable by the Board. The Company shall not be required to issue any shares of Common Stock under the Plan until such obligations are satisfied.

(c)    The 423 Component is intended to be exempt from the application of Section 409A of the Code, and any ambiguities herein shall be interpreted to so be exempt from Section 409A of the Code. The Non-423 Component is intended to be exempt from the application of Section 409A of the Code under the short-term deferral exception and any ambiguities shall be construed and interpreted in accordance with such intent. In furtherance of the foregoing and notwithstanding any provision in the Plan to the contrary, if the Committee determines that an option granted under the Plan may be subject to Section 409A of the Code or that any provision in the Plan would cause an option under the Plan to be subject to Section 409A, the Committee may amend the terms of the Plan and/or of an outstanding option granted under the Plan, or take such other action the Committee determines is necessary or appropriate, in each case, without the Participant’s consent, to exempt any outstanding option or future option that may be granted under the Plan from or to allow any such options to comply with Section 409A of the Code, but only to the extent any such amendments or action by the Committee would not violate Section 409A of the Code. Notwithstanding the foregoing, the Company shall have no liability to a Participant or any other party if the option under the Plan that is intended to be exempt from or compliant with Section 409A of the Code is not so exempt or compliant or for any action taken by the Committee with respect thereto.

14.    EFFECTIVE DATE OF PLAN.

The Plan will become effective immediately prior to and contingent upon the Effective Date. No Purchase Rights will be exercised unless and until the Plan has been approved by the stockholders of the Company, which approval must be within 12 months before or after the date the Plan is adopted (or if required under Section 12(a) above, materially amended) by the Board.

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15.    MISCELLANEOUS PROVISIONS.

(a)    Proceeds from the sale of shares of Common Stock pursuant to Purchase Rights will constitute general funds of the Company.

(b)    A Participant will not be deemed to be the holder of, or to have any of the rights of a holder with respect to, shares of Common Stock subject to Purchase Rights unless and until the Participant’s shares of Common Stock acquired upon exercise of Purchase Rights are recorded in the books of the Company (or its transfer agent).

(c)    The Plan and Offering do not constitute an employment contract. Nothing in the Plan or in the Offering will in any way alter the at will nature of a Participant’s employment or amend a Participant’s employment contract, if applicable, or be deemed to create in any way whatsoever any obligation on the part of any Participant to continue in the employ of the Company or a Related Corporation or an Affiliate, or on the part of the Company, a Related Corporation or an Affiliate to continue the employment of a Participant.

(d)    The provisions of the Plan will be governed by the laws of the State of Delaware without resort to that state’s conflicts of laws rules.

(e)    If any particular provision of the Plan is found to be invalid or otherwise unenforceable, such provision will not affect the other provisions of the Plan, but the Plan will be construed in all respects as if such invalid provision were omitted.

(f)    If any provision of the Plan does not comply with Applicable Law, such provision shall be construed in such a manner as to comply with Applicable Law.

16.    DEFINITIONS.

As used in the Plan, the following definitions will apply to the capitalized terms indicated below:

(a)    “423 Component” means the part of the Plan, which excludes the Non-423 Component, pursuant to which Purchase Rights that satisfy the requirements for an Employee Stock Purchase Plan may be granted to Eligible Employees.

(b)    “Affiliate” means any entity, other than a Related Corporation, whether now or subsequently established, which is at the time of determination, a “parent” or “subsidiary” of the Company as such terms are defined in Rule 405 promulgated under the Securities Act. The Board may determine the time or times at which “parent” or “subsidiary” status is determined within the foregoing definition.

(c)    “Applicable Law” means shall mean the Code and any applicable securities, federal, state, foreign, material local or municipal or other law, statute, constitution, principle of common law, resolution, ordinance, code, edict, decree, rule, listing rule, regulation, judicial decision, ruling or requirement issued, enacted, adopted, promulgated, implemented or otherwise put into effect by or under the authority of any Governmental Body (or under the authority of the New York Stock Exchange, NASDAQ Stock Market or the Financial Industry Regulatory Authority).

(d)    “Board” means the Board of Directors of the Company.

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(e)    “Capitalization Adjustment” means any change that is made in, or other events that occur with respect to, the Common Stock subject to the Plan or subject to any Purchase Right after the date the Plan is adopted by the Board without the receipt of consideration by the Company through merger, consolidation, reorganization, recapitalization, reincorporation, stock dividend, dividend in property other than cash, large nonrecurring cash dividend, stock split, liquidating dividend, combination of shares, exchange of shares, change in corporate structure or other similar equity restructuring transaction, as that term is used in Financial Accounting Standards Board Accounting Standards Codification Topic 718 (or any successor thereto). Notwithstanding the foregoing, the conversion of any convertible securities of the Company will not be treated as a Capitalization Adjustment.

(f)    “Code” means the U.S. Internal Revenue Code of 1986, as amended, including any applicable regulations and guidance thereunder.

(g)    “Committee” means a committee of one or more members of the Board to whom authority has been delegated by the Board in accordance with Section 2(c).

(h)    “Common Stock” means the common stock, par value $0.0001 per share, of the Company.

(i)    “Company” means Tourmaline Bio, Inc., a Delaware corporation.

(j)    “Contributions” means the payroll deductions and other additional payments specifically provided for in the Offering that a Participant contributes to fund the exercise of a Purchase Right. A Participant may make additional payments into his or her account if specifically provided for in the Offering, and then only if the Participant has not already had the maximum permitted amount withheld during the Offering through payroll deductions and, with respect to the 423 Component, to the extent permitted by Section 423.

(k)    “Corporate Transaction” means the consummation, in a single transaction or in a series of related transactions, of any one or more of the following events:

(i)    a sale or other disposition of all or substantially all, as determined by the Board in its sole discretion, of the consolidated assets of the Company and its subsidiaries;

(ii)    a sale or other disposition of more than 50% of the outstanding securities of the Company;

(iii)    a merger, consolidation or similar transaction following which the Company is not the surviving corporation; or

(iv)    a merger, consolidation or similar transaction following which the Company is the surviving corporation but the shares of Common Stock outstanding immediately preceding the merger, consolidation or similar transaction are converted or exchanged by virtue of the merger, consolidation or similar transaction into other property, whether in the form of securities, cash or otherwise.

(l)    “Designated 423 Company” means any Related Corporation selected by the Board as participating in the 423 Component.

(m)    “Designated Company” means any Designated Non-423 Company or Designated 423 Company, provided, however, that at any given time, a Related Corporation participating in the 423 Component shall not be a Related Corporation participating in the Non-423 Component.

(n)    “Designated Non-423 Company” means any Related Corporation or Affiliate selected by the Board as participating in the Non-423 Component.

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(o)    “Director” means a member of the Board.

(p)    “Effective Date” means the effective date of this Plan, which is the date of the closing of the transactions contemplated by the Merger Agreement.

(q)    “Effective Time” shall have the meaning set forth in the Merger Agreement.

(r)    “Eligible Employee” means an Employee who meets the requirements set forth in the document(s) governing the Offering for eligibility to participate in the Offering, provided that such Employee also meets the requirements for eligibility to participate set forth in the Plan.

(s)    “Employee” means any person, including an Officer or Director, who is “employed” for purposes of Section 423(b)(4) of the Code by the Company or a Related Corporation or solely with respect to the Non-423 Component, an Affiliate. However, service solely as a Director, or payment of a fee for such services, will not cause a Director to be considered an “Employee” for purposes of the Plan.

(t)    “Employee Stock Purchase Plan” means a plan that grants Purchase Rights intended to be options issued under an “employee stock purchase plan,” as that term is defined in Section 423(b) of the Code.

(u)    “Exchange Act” means the U.S. Securities Exchange Act of 1934, as amended and the rules and regulations promulgated thereunder.

(v)    “Fair Market Value” means, as of any date, the value of the Common Stock determined as follows:

(i)    If the Common Stock is listed on any established stock exchange or traded on any established market, the Fair Market Value of a share of Common Stock will be, unless otherwise determined by the Board, the closing sales price for such stock as quoted on such exchange or market (or the exchange or market with the greatest volume of trading in the Common Stock) on the date of determination, as reported in such source as the Board deems reliable. Unless otherwise provided by the Board, if there is no closing sales price for the Common Stock on the date of determination, then the Fair Market Value will be the closing sales price on the last preceding date for which such quotation exists.

(ii)    In the absence of such markets for the Common Stock, the Fair Market Value will be determined by the Board in good faith in compliance with Applicable Laws and regulations and, to the extent applicable as determined in the sole discretion of the Board, in a manner that complies with Section 409A of the Code.

(w)    “Governmental Body” means any: (a) nation, state, commonwealth, province, territory, county, municipality, district or other jurisdiction of any nature; (b) federal, state, local, municipal, foreign or other government; (c) governmental or regulatory body, or quasi-governmental body of any nature (including any governmental division, department, administrative agency or bureau, commission, authority, instrumentality, official, ministry, fund, foundation, center, organization, unit, body or entity and any court or other tribunal, and for the avoidance of doubt, any tax authority) or other body exercising similar powers or authority; or (d) self-regulatory organization (including the New York Stock Exchange, the NASDAQ Stock Market and the Financial Industry Regulatory Authority).

(x)    “Merger Agreement” means that certain Agreement and Plan of Merger, dated as of [____], 2023, among Talaris Therapeutics, Inc., a Delaware corporation (“Terrain”), Terrain Merger Sub, Inc., a Delaware corporation and direct wholly owned subsidiary of Terrain, and Tourmaline Bio, Inc., a Delaware corporation.

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(y)     “Non-423 Component” means the part of the Plan, which excludes the 423 Component, pursuant to which Purchase Rights that are not intended to satisfy the requirements for an Employee Stock Purchase Plan may be granted to Eligible Employees.

(z)    “Offering” means the grant to Eligible Employees of Purchase Rights, with the exercise of those Purchase Rights automatically occurring at the end of one or more Purchase Periods. The terms and conditions of an Offering will generally be set forth in the “Offering Document” approved by the Board for that Offering.

(aa)    “Offering Date” means a date selected by the Board for an Offering to commence.

(bb)    “Officer” means a person who is an officer of the Company or a Related Corporation within the meaning of Section 16 of the Exchange Act.

(cc)    “Participant” means an Eligible Employee who holds an outstanding Purchase Right.

(dd)    “Plan” means this Tourmaline Bio, Inc. 2023 Employee Stock Purchase Plan, as amended from time to time, including both the 423 Component and the Non-423 Component.

(ee)    “Purchase Date” means one or more dates during an Offering selected by the Board on which Purchase Rights will be exercised and on which purchases of shares of Common Stock will be carried out in accordance with such Offering.

(ff)    “Purchase Period” means a period of time specified within an Offering, generally beginning on the Offering Date or on the first Trading Day following a Purchase Date, and ending on a Purchase Date. An Offering may consist of one or more Purchase Periods.

(gg)    “Purchase Right” means an option to purchase shares of Common Stock granted pursuant to the Plan.

(hh)    “Related Corporation” means any “parent corporation” or “subsidiary corporation” of the Company whether now or subsequently established, as those terms are defined in Sections 424(e) and (f), respectively, of the Code.

(ii)    “Securities Act” means the U.S. Securities Act of 1933, as amended.

(jj)    “Tax-Related Items” means any income tax, social insurance, payroll tax, fringe benefit tax, payment on account or other tax-related items arising out of or in relation to a Participant’s participation in the Plan, including, but not limited to, the exercise of a Purchase Right and the receipt of shares of Common Stock or the sale or other disposition of shares of Common Stock acquired under the Plan.

(kk)    “Trading Day” means any day on which the exchange(s) or market(s) on which shares of Common Stock are listed, including but not limited to the New York Stock Exchange, the Nasdaq Global Select Market, the Nasdaq Global Market, the Nasdaq Capital Market or any successors thereto, is open for trading.

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