Executive Employment Agreement, dated as of May 27, 2022, by and between Alpine Immune Sciences, Inc. and Andrew Sandler

THIS EXECUTIVE EMPLOYMENT AGREEMENT (the “Agreement”) is entered into between Alpine Immune Sciences, Inc. (the “Company”), and Andrew Sandler (“Executive”) (collectively referred to as the “Parties” or individually as a “Party”).

WHEREAS, the Company desires to employ Executive as its Chief Medical Officer (“CMO”), and to enter into an agreement embodying the terms of such employment; and

WHEREAS, Executive desires to accept such employment and enter into such an agreement.

NOW, THEREFORE, in consideration of the premises and mutual covenants herein and for other good and valuable consideration, the Parties agree as follows:

1.Duties and Scope of Employment.

(a)Positions and Duties. Executive’s employment with the Company will begin effective August 17, 2022, and, as of such date, Executive will serve as CMO of the Company, subject to the terms and conditions of this Agreement. Executive will render such professional services in the performance of Executive’s duties, consistent with Executive’s position within the Company, as shall reasonably be assigned to Executive by the Company and, as such, from and after the date hereof, shall report directly to and shall be subject to the direction of the President and Head of Research & Development. The period of Executive’s at-will employment under the terms of this Agreement is referred to herein as the “Employment Term.”

(b)Obligations. During the Employment Term, Executive will perform Executive’s duties faithfully and to the best of their ability and will devote their full business efforts and time to the Company. For the duration of the Employment Term, Executive agrees not to actively engage in any other employment, occupation or consulting activity for any direct or indirect remuneration without the prior written approval of the Board, CEO, or President.

2.At-Will Employment. Subject to Sections 6 below, the parties agree that Executive's employment with the Company will be “at-will” employment and, as such, may be terminated at any time with or without cause or notice, for any reason or no reason. Executive further understands and agrees that, as before, neither Executive’s job performance nor promotions, commendations, bonuses or the like from the Company give rise to or in any way serve as the basis for modification, amendment, or extension, by implication or otherwise, of Executive’s employment with the Company.

3.Compensation.

(c)Base Salary. During the Employment Term, the Company will pay Executive as compensation for Executive’s services a base salary at a rate of $500,000 per year, as modified from time to time at the discretion of the Board or a duly constituted committee of the Board (the “Base Salary”). The Base Salary will be paid in regular installments in accordance with the Company’s normal payroll practices (subject to required withholding). Any modification in Base Salary (together with the then existing Base Salary) shall serve as the “Base Salary” for future employment under this Agreement. The first and last payment will be adjusted, if necessary, to reflect a commencement or termination date other than the first or last working day of a pay period.

(d)Annual Bonus. During the Employment Term, for each calendar year, Executive shall be eligible to earn an annual discretionary bonus based upon the achievement of certain Company and individual goals as determined by the Company in its discretion after consultation with Executive (the “Annual Bonus”). The Board will determine in its discretion whether the performance objectives for any Annual Bonus have been achieved. In connection with the Annual Bonus, subject to the corresponding performance levels being

achieved, the Executive shall be eligible for an annual target bonus of up to 45% of the Executive’s Base Salary (the “Target Bonus”) with an annual maximum bonus equal to 100% of the Target Bonus. The Board does, however, retain the option of increasing the Annual Bonus in any given year by an additional discretionary amount in the event Executive significantly exceeds the above-referenced performance objectives for that year, as determined, in all cases, by the Board in its sole discretion. Any such Annual Bonus (including any additional discretionary increase, if awarded by the Board) will be determined and, to the extent earned, paid on an annual basis, at the time and manner in which such bonuses are normally paid to employees at Executive’s level, but in no event will such payment be made later than March 15 of the year following the year such Annual Bonus was earned. Receipt of any Annual Bonus is contingent upon Executive’s continued employment with the Company through the date the Annual Bonus is earned and any Annual Bonus for a calendar year will not be considered earned if Executive’s employment with the Company terminates prior to December 1 of such calendar year. No “pro-rated” or partial bonus will be provided in the event of Executive’s earlier separation from employment, except as provided by this Agreement.

(e)Equity. In connection with and as an inducement for the commencement of your employment relationship with the Company, the Company will recommend that the Company’s board of directors (the “Board of Directors”) grant you an option (the “Option”), following your start date, to purchase up to one hundred and sixty thousand (160,000) shares of the Company’s Common Stock (the “Common Stock”), subject to approval of the Board of Directors and to the terms of either the Company’s 2018 Equity Incentive Plan (the “Equity Plan”) or as an inducement grant made outside of the 2018 Equity Incentive Plan, with an exercise price per share equal to the fair market value of the Common Stock on the date of grant (as determined in good faith by the Board of Directors). If the Option is an inducement grant outside of the 2018 Equity Incentive Plan, such Option shall be a non-qualified stock option for tax purposes. Unless otherwise determined by the Board of Directors, your Option will vest as follows: twenty five percent (25%) of the Option shall vest and become exercisable on the twelve (12) month anniversary of your start date (which start date is anticipated to be on or about August 17, 2022), and one thirty-sixth (1/36th) of the remaining number of shares shall vest each month thereafter, such that one hundred percent (100%) of the shares subject to the Option shall be vested and exercisable as of the four (4)-year anniversary of your start date. Vesting will, of course, depend on your continued service to the Company. Subject to the discretion of the Board of Directors, you may be eligible to receive future grants of stock options or purchase rights from time to time in the future, on such terms and subject to such conditions as the Board of Directors shall determine as of the date of any such grant.

4.Employee Benefits. During the Employment Term, Executive will be eligible to participate in the employee benefit plans currently and hereafter maintained by the Company of general applicability to similarly-situated senior executives of the Company, subject to the terms and conditions of the applicable policies. The Company reserves the right to cancel or change the benefit plans and programs it offers to its employees at any time.

5.Business Expenses. During the Employment Term, the Company will reimburse Executive for reasonable business travel, entertainment or other business expenses incurred by Executive in the furtherance of or in connection with the performance of Executive’s duties hereunder, in accordance with the Company’s expense reimbursement policy as in effect from time to time. Except as expressly provided otherwise herein, no reimbursement payable to the Executive pursuant to any provision of this Agreement or pursuant to any plan or arrangement of the Company shall be paid later than the last day of the calendar year following the calendar year in which the related expense was incurred, and no such reimbursement during any calendar year shall affect the amounts eligible for reimbursement in any other calendar year, except, in each case, to the extent that the right to reimbursement does not provide for a “deferral of compensation” within the meaning of Section 409A of the Internal Revenue Code of 1986, as amended (the “Code”), and the final regulations and any formal guidance issued thereunder (“Section 409A”).

6.Termination and Severance. As discussed above, the Company shall be entitled to terminate Executive at any time and for any reason, and Executive shall be entitled to resign at any time and for any reason. Executive may, however, be entitled to receive certain severance benefits in connection with Executive’s separation from employment under the Company’s Change of Control and Severance Policy (the “Severance Policy”). Any such severance, if applicable, will be subject to the terms and conditions of the Severance Policy, as may be amended or modified from time to time.

7. Company Matters.

(a)Proprietary Information and Inventions. Executive acknowledges and agrees that, as a condition of employment, Executive is required to sign and abide by the terms of the At-Will Employment,

Confidential Information, Invention Assignment, and Arbitration Agreement (the “Confidentiality Agreement”), including the arbitration agreement and provisions governing the non-disclosure of confidential information and restrictive covenants contained therein. A copy of the Confidentiality Agreement is attached hereto as Exhibit A. Executive acknowledges that the Confidentiality Agreement may be updated to reflect intervening changes in law that occur before Executive’s commencement of employment, and, in such event, commencement of Executive’s employment is conditioned on Executive signing such updated Confidentiality Agreement.

(b)Ventures. If, during Executive’s employment, Executive is engaged in or associated with planning or implementing of any project, program or venture involving the Company and any third parties, all rights in such project, program or venture shall belong to the Company (or third party, to the extent provided in any agreement between the Company and the third party). Except as approved by the Board in writing, Executive shall not be entitled to any interest in such project, program or venture or to any commission, finder’s fee or other compensation in connection therewith other than the salary or other compensation to be paid to Executive as provided in this Agreement.

(c)Notification of New Employer. In the event that Executive leaves the employ of the Company, Executive grants consent to notification by the Company to Executive’s new employer about the rights and obligations under this Agreement and the Confidentiality Agreement.

8.ARBITRATION. IN CONSIDERATION OF EXECUTIVE’S EMPLOYMENT WITH THE COMPANY, ITS PROMISE TO ARBITRATE ALL EMPLOYMENT-RELATED DISPUTES AND EXECUTIVE’S RECEIPT OF THE COMPENSATION, PAY RAISES AND OTHER BENEFITS PAID TO EXECUTIVE BY THE COMPANY, AT PRESENT AND IN THE FUTURE, EXECUTIVE AGREES THAT ANY AND ALL CONTROVERSIES, CLAIMS, OR DISPUTES WITH ANYONE (INCLUDING THE COMPANY AND ANY EMPLOYEE, OFFICER, DIRECTOR, SHAREHOLDER OR BENEFIT PLAN OF THE COMPANY, IN THEIR CAPACITY AS SUCH OR OTHERWISE), ARISING OUT OF, RELATING TO, OR RESULTING FROM EXECUTIVE’S EMPLOYMENT WITH THE COMPANY OR THE TERMINATION OF EXECUTIVE’S EMPLOYMENT WITH THE COMPANY, INCLUDING ANY BREACH OF THIS AGREEMENT, SHALL BE SUBJECT TO BINDING ARBITRATION, AS SET FORTH IN THE CONFIDENTIALITY AGREEMENT.

9.Assignment. This Agreement will be binding upon and inure to the benefit of (a) the heirs, executors and legal representatives of Executive upon Executive's death and (b) any successor of the Company. Any such successor of the Company will be deemed substituted for the Company under the terms of this Agreement for all purposes. For this purpose, “successor” means any person, firm, corporation or other business entity which at any time, whether by purchase, merger or otherwise, directly or indirectly acquires all or substantially all of the assets or business of the Company. None of the rights of Executive to receive any form of compensation payable pursuant to this Agreement may be assigned or transferred except by will or the laws of descent and distribution. Any other attempted assignment, transfer, conveyance or other disposition of Executive’s right to compensation or other benefits will be null and void.

10.Notices. All notices, requests, demands and other communications called for under this Agreement shall be in writing and shall be delivered personally by hand or by courier, mailed by United States first-class mail, postage prepaid, or sent by facsimile directed to the Party to be notified at the address or facsimile number indicated for such Party on the signature page to this Agreement, or at such other address or facsimile number as such Party may designate by ten (10) days’ advance written notice to the other Parties hereto. All such notices and other communications shall be deemed given upon personal delivery, three (3) days after the date of mailing, or upon confirmation of facsimile transfer.

11.Severability. In the event that any provision hereof becomes or is declared by a court of competent jurisdiction to be illegal, unenforceable or void, this Agreement will continue in full force and effect without said provision.

12.Integration. This Agreement, together with the Severance Policy, Equity Plan (including any option agreement thereunder) or inducement option grant, as applicable, and the Confidentiality Agreement, represents the entire agreement and understanding between the parties as to the subject matter herein and supersedes all prior or contemporaneous agreements whether written or oral. No waiver, alteration, or modification of any of the provisions of this Agreement will be binding unless in writing and signed by duly authorized representatives of the parties hereto.

13.Tax Withholding. All payments made pursuant to this Agreement will be subject to withholding of applicable taxes.

14.Waiver. No Party shall be deemed to have waived any right, power or privilege under this Agreement or any provisions hereof unless such waiver shall have been duly executed in writing and acknowledged by the Party to be charged with such waiver. The failure of any Party at any time to insist on performance of any of the provisions of this Agreement shall in no way be construed to be a waiver of such provisions, nor in any way to affect the validity of this Agreement or any part hereof. No waiver of any breach of this Agreement shall be held to be a waiver of any other subsequent breach

15.Governing Law. This Agreement will be governed by the laws of the State of Washington (with the exception of its conflict of law provisions).

16.Conflict Waiver. Each of the Parties to this Agreement understands that Wilson Sonsini Goodrich & Rosati, Professional Corporation (“WSGR”) is serving as counsel to the Company in connection with the transactions contemplated hereby, and that discussion of such transactions with Executive could be construed to create a conflict of interest. By executing this Agreement, the Parties hereto acknowledge the potential conflict of interest and waive the right to claim any conflict of interest at a later date. Furthermore, by executing this Agreement, the Parties acknowledge that if a conflict of interest exists and any litigation arises between Executive and the Company, WSGR would represent the Company. Executive represents and warrants that Executive has had the opportunity to seek independent counsel in Executive’s review of this and all related agreements and that he is not relying on WSGR for any legal, tax or other advice relating to such agreements.

17.Acknowledgment. Executive acknowledges that he has had the opportunity to discuss this matter with and obtain advice from Executive’s legal counsel, has had sufficient time to, and has carefully read and fully understands all the provisions of this Agreement, and is knowingly and voluntarily entering into this Agreement.

18.Counterparts. This Agreement may be executed in multiple counterparts, each of which shall be deemed to be an original, and all such counterparts shall constitute but one instrument.

19.Effect of Headings. The section and subsection headings contained herein are for convenience only and shall not affect the construction hereof.

20.Construction of Agreement. This Agreement has been negotiated by the respective Parties, and the language shall not be construed for or against either Party.

21.Section 409A. The Section 409A paragraph of the Severance Policy are incorporated herein by reference.

22.Protected Activity Not Prohibited. Executive understands that nothing in this Agreement, or any other agreement or policy with or by the Company, shall in any way limit or prohibit Executive from engaging in any Protected Activity. For purposes of this Agreement, “Protected Activity” shall mean filing and/or pursuing a charge, complaint, or report with, or otherwise communicating, cooperating, or participating in any investigation or proceeding that may be conducted by, any federal, state or local government agency or commission, including the Securities and Exchange Commission, the Equal Employment Opportunity Commission, the Occupational Safety and Health Administration, and the National Labor Relations Board (“Government Agencies”). Executive understands that in connection with such Protected Activity, Executive is permitted to disclose documents or other information as permitted by law, and without giving notice to, or receiving authorization from, the Company. Notwithstanding the foregoing, Executive agrees to take all reasonable precautions to prevent any unauthorized use or disclosure of any information that may constitute Company confidential information under the Confidentiality Agreement to any parties other than the Government Agencies. Executive further understands that “Protected Activity” does not include the disclosure of any Company attorney-client privileged communications. Any language in the Confidentiality Agreement, or any other agreement or policy of the Company, regarding Executive’s right to engage in Protected Activity that conflicts with, or is contrary to, this paragraph is superseded by this provision. In addition, pursuant to the Defend Trade Secrets Act of 2016, Executive is notified that an individual will not be held criminally or civilly liable under any federal or state trade secret law for the disclosure of a trade secret that (a) is made in confidence to a federal, state, or local government official (directly or indirectly) or to an attorney solely for the purpose of reporting or investigating a suspected violation of law, or (b) is made in a complaint or other document filed in a

lawsuit or other proceeding, if (and only if) such filing is made under seal. In addition, an individual who files a lawsuit for retaliation by an employer for reporting a suspected violation of law may disclose the trade secret to the individual’s attorney and use the trade secret information in the court proceeding, if the individual files any document containing the trade secret under seal and does not disclose the trade secret, except pursuant to court order.

23.Clawback Provisions. Notwithstanding any other provisions in this Agreement to the contrary, any incentive-based compensation, or any other compensation, paid to Executive pursuant to this Agreement or any other agreement or arrangement with the Company or any of its affiliates, which is subject to recovery under any law, government regulation or stock exchange listing requirement, will be subject to such deductions and clawback as may be required to be made pursuant to such law, government regulation or stock exchange listing requirement (or any policy adopted by the Company or any of their affiliates pursuant to any such law, government regulation or stock exchange listing requirement), including for any violations of the Confidentiality Agreement, if applicable.

IN WITNESS WHEREOF, each of the Parties has executed this Agreement as of the dates indicated below.

As a condition of my employment with Alpine Immune Sciences, Inc. (the “Company”), and in consideration of my employment with the Company and my receipt of the compensation now and hereafter paid to me by Company, I agree to the following provisions of this At-Will Employment, Confidential Information, Invention Assignment, and Arbitration Agreement (this “Agreement”):

I UNDERSTAND AND ACKNOWLEDGE THAT MY EMPLOYMENT WITH THE COMPANY IS FOR NO SPECIFIED TERM AND CONSTITUTES “AT-WILL” EMPLOYMENT. I ALSO UNDERSTAND THAT ANY REPRESENTATION TO THE CONTRARY IS UNAUTHORIZED AND NOT VALID UNLESS IN WRITING AND SIGNED BY THE PRESIDENT OR CEO OF THE COMPANY. ACCORDINGLY, I ACKNOWLEDGE THAT MY EMPLOYMENT RELATIONSHIP MAY BE TERMINATED AT ANY TIME, WITH OR WITHOUT GOOD CAUSE OR FOR ANY OR NO CAUSE, AT MY OPTION OR AT THE OPTION OF THE COMPANY, WITH OR WITHOUT NOTICE. I FURTHER ACKNOWLEDGE THAT THE COMPANY MAY MODIFY JOB TITLES, SALARIES, AND BENEFITS FROM TIME TO TIME AS IT DEEMS NECESSARY.

A.Definition of Company Confidential Information. I understand that “Company Confidential Information” means information (including any and all combinations of individual items of information) that the Company has or will develop, acquire, create, compile, discover or own, that has value in or to the Company’s business which is not generally known and which the Company wishes to maintain as confidential. Company Confidential Information includes both information disclosed by the Company to me, and information developed or learned by me during the course of my employment with the Company. Company Confidential Information also includes all information of which the unauthorized disclosure could be detrimental to the interests of the Company, whether or not such information is identified as Company Confidential Information. By example, and without limitation, Company Confidential Information includes any and all non-public information that relates to the actual or anticipated business and/or products, research or development of the Company, or to the Company’s technical data, trade secrets, or know-how, including, but not limited to, research, product plans, or other information regarding the Company’s products or services and markets therefor, customer lists and customers (including, but not limited to, customers of the Company on which I called or with which I may become acquainted during the term of my employment), software, developments, inventions, discoveries, ideas, processes, formulas, technology, designs, drawings, engineering, hardware configuration information, marketing, finances, and other business information disclosed by the Company either directly or indirectly in writing, orally or by drawings or inspection of premises, parts, equipment, or other Company property. Notwithstanding the foregoing, Company Confidential Information shall not include any such information which I can establish (i) was publicly known or made generally available prior to the time of disclosure by the Company to me; (ii) becomes publicly known or made generally available after disclosure by the Company to me through no wrongful action or omission by me; or (iii) is in my rightful possession, without confidentiality obligations, at the time of disclosure by the Company as shown by my then-contemporaneous written records; provided that any combination of individual items of information shall not be deemed to be within any of the foregoing exceptions merely because one or more of the individual items are within such exception, unless the combination as a whole is within such exception. I understand that nothing in this Agreement is intended to

limit employees’ rights to discuss the terms, wages, and working conditions of their employment, as protected by applicable law. I understand that nothing herein is intended to limit my ability to discuss or disclose conduct that I reasonably believe under Washington state, federal or common law to be illegal discrimination, illegal harassment, illegal retaliation, a wage and hour violation, or sexual assault, or conduct that is recognized as against a clear mandate of public policy, and I understand that information related solely to any of the foregoing types of conduct does not constitute “Company Confidential Information.” Further, nothing herein is intended to limit an employee’s ability to disclose information regarding work-related sexual harassment or sexual assault, as described in RCW 49.44.210 as in effect on or before June 8, 2022.

B.Nonuse and Nondisclosure. I agree that during and after my employment with the Company, I will hold in the strictest confidence and take all reasonable precautions to prevent any unauthorized use or disclosure of Company Confidential Information. I will not (i) use Company Confidential Information for any purpose whatsoever other than for the benefit of the Company in the course of my employment, or (ii) disclose Company Confidential Information to any third party without the prior written authorization of the President, CEO, or the Board of Directors of the Company. Prior to disclosure, when compelled by applicable law, I shall provide prior written notice to the President, CEO, and General Counsel of the Company (as applicable). I agree that I obtain no title to any Company Confidential Information, and that the Company retains all Confidential Information as the sole property of the Company. I understand that my unauthorized use or disclosure of Company Confidential Information during my employment may lead to disciplinary action, up to and including, immediate termination and legal action by the Company. I understand that my obligations under this Section 2.B shall continue after termination of my employment and also that nothing in this Agreement prevents me from engaging in protected activity, as described in Section 14 below.

C.Former Employer Confidential Information. I agree that during my employment with the Company, I will not improperly use, disclose, or induce the Company to use any proprietary information or trade secrets of any former employer or other person or entity with which I have an obligation to keep such proprietary information or trade secrets in confidence. I further agree that I will not bring onto the Company’s premises or transfer onto the Company’s technology systems any unpublished document, proprietary information, or trade secrets belonging to any such third party unless disclosure to, and use by, the Company has been consented to, in writing, by such third party and the Company.

D.Third Party Information. I recognize that the Company has received, and in the future may receive, from third parties (for example, customers, suppliers, licensors, licensees, partners, and collaborators) as well as its subsidiaries and affiliates (“Associated Third Parties”), information which the Company is required to maintain and treat as confidential or proprietary information of such Associated Third Parties (“Associated Third Party Confidential Information”), and I agree to use such Associated Third Party Confidential Information only as directed by the Company and to not use or disclose such Associated Third Party Confidential Information in a manner that would violate the Company’s obligations to such Associated Third Parties. By way of example, Associated Third Party Confidential Information may include the habits or practices of Associated Third Parties, the technology of Associated Third Parties, requirements of Associated Third Parties, and information related to the business conducted between the Company and such Associated Third Parties. I agree at all times during my employment with the Company and thereafter, that I owe the Company and its Associated Third Parties a duty to hold all such Associated Third Party Confidential Information in the strictest confidence, and not to use it or to disclose it to any person, firm, corporation, or other third party except as necessary in carrying out my work for the Company consistent with the Company’s agreement with such

Associated Third Parties. I further agree to comply with any and all Company policies and guidelines that may be adopted from time to time regarding Associated Third Parties and Associated Third Party Confidential Information. I understand that my unauthorized use or disclosure of Associated Third Party Confidential Information or violation of any Company policies during my employment may lead to disciplinary action, up to and including, immediate termination and legal action by the Company.

A.Assignment of Inventions. As between the Company and myself, I agree that all right, title, and interest in and to any and all copyrightable material, notes, records, drawings, designs, logos, inventions, improvements, developments, discoveries, ideas and trade secrets conceived, discovered, authored, invented, developed or reduced to practice by me, solely or in collaboration with others, during the period of time I am in the employ of the Company (including during my off-duty hours), or with the use of Company’s equipment, supplies, facilities, or Company Confidential Information, and any copyrights, patents, trade secrets, mask work rights or other intellectual property rights relating to the foregoing, except as provided in Section 3.G below (collectively, “Inventions”), are the sole property of the Company. I also agree to promptly make full written disclosure to the Company of any Inventions, and to deliver and assign and hereby irrevocably assign fully to the Company all of my right, title and interest in and to Inventions. I agree that this assignment includes a present conveyance to the Company of ownership of Inventions that are not yet in existence. I further acknowledge that all original works of authorship that are made by me (solely or jointly with others) within the scope of and during the period of my employment with the Company and that are protectable by copyright are “works made for hire,” as that term is defined in the United States Copyright Act. I understand and agree that the decision whether or not to commercialize or market any Inventions is within the Company’s sole discretion and for the Company’s sole benefit, and that no royalty or other consideration will be due to me as a result of the Company’s efforts to commercialize or market any such Inventions. I understand that any and all Inventions that I may work on with personnel of the Company’s parent or other affiliates constitute joint research between the Company and its parent or other affiliates, as applicable, for the purposes of 35 U.S.C. section 103(c)(2).

B.Pre-Existing Materials. I will inform the Company, in writing, before incorporating any inventions, discoveries, ideas, original works of authorship, developments, improvements, trade secrets and other proprietary information or intellectual property rights owned by me or in which I have an interest prior to, or separate from, my employment with the Company, including, without limitation, any such inventions that are subject to RCW 49.44.140, as defined below in Section 3.G, (“Prior Inventions”) into any Invention or otherwise utilizing any Prior Invention in the course of my employment with the Company; and the Company is hereby granted a nonexclusive, royalty-free, perpetual, irrevocable, transferable worldwide license (with the right to grant and authorize sublicenses) to make, have made, use, import, offer for sale, sell, reproduce, distribute, modify, adapt, prepare derivative works of, display, perform, and otherwise exploit such incorporated or utilized Prior Inventions, without restriction, including, without limitation, as part of, or in connection with, such Invention, and to practice any method related thereto. I will not incorporate any inventions, discoveries, ideas, original works of authorship, developments, improvements, trade secrets and other proprietary information or intellectual property rights owned by any third party into any Invention without the Company’s prior written permission. I have attached hereto, as Exhibit A, a list describing all Prior Inventions that relate to the Company’s current or anticipated business, products, or research and development or, if no such list is attached, I represent and warrant that there are no such Prior Inventions. Furthermore, I represent and warrant that if any Prior Inventions are included on Exhibit A, they will not materially affect my ability to perform all obligations under this Agreement.

C.Moral Rights. Any assignment to the Company of Inventions includes all rights of attribution, paternity, integrity, modification, disclosure and withdrawal, and any other rights throughout the world that may be known as or referred to as “moral rights,” “artist’s rights,” “droit moral,” or the like (collectively, “Moral Rights”). To the extent that Moral Rights cannot be assigned under applicable law, I

hereby waive and agree not to enforce any and all Moral Rights, including, without limitation, any limitation on subsequent modification, to the extent permitted under applicable law.

D.Maintenance of Records. I agree to keep and maintain adequate, current, accurate, and authentic written records of all Inventions made by me (solely or jointly with others) during the term of my employment with the Company. The records will be in the form of notes, sketches, drawings, electronic files, reports, or any other format that may be specified by the Company. As between the Company and myself, the records are and will be available to and remain the sole property of the Company at all times.

E.Further Assurances. I agree to assist the Company, or its designee, at the Company’s expense, in every proper way to secure the Company’s rights in the Inventions in any and all countries, including the disclosure to the Company of all pertinent information and data with respect thereto, the execution of all applications, specifications, oaths, assignments, and all other instruments that the Company shall deem proper or necessary in order to apply for, register, obtain, maintain, defend, and enforce such rights, and in order to deliver, assign and convey to the Company, its successors, assigns, and nominees the sole and exclusive rights, title, and interest in and to all Inventions, and testifying in a suit or other proceeding relating to such Inventions. I further agree that my obligations under this Section 3.E shall continue after the termination of this Agreement.

F.Attorney-in-Fact. I agree that, if the Company is unable because of my unavailability, mental or physical incapacity, or for any other reason to secure my signature with respect to any Inventions, including, without limitation, for the purpose of applying for or pursuing any application for any United States or foreign patents or mask work or copyright registrations covering the Inventions assigned to the Company in Section 3.A, then I hereby irrevocably designate and appoint the Company and its duly authorized officers and agents as my agent and attorney-in-fact, to act for and on my behalf to execute and file any papers and oaths, and to do all other lawfully permitted acts with respect to such Inventions to further the prosecution and issuance of patents, copyright and mask work registrations with the same legal force and effect as if executed by me. This power of attorney shall be deemed coupled with an interest, and shall be irrevocable.

G.Exception to Assignments. I UNDERSTAND THAT THE PROVISIONS OF THIS AGREEMENT REQUIRING ASSIGNMENT OF INVENTIONS (AS DEFINED UNDER SECTION 3.A ABOVE) TO THE COMPANY DO NOT APPLY TO ANY INVENTION THAT QUALIFIES FULLY UNDER THE REVISED CODE OF WASHINGTON SECTION 49.44.140 (“RCW 49.44.140”):

Any provision in this Agreement for assignment of my right, title, and interest in an Invention to the Company does not apply to an Invention for which no equipment, supplies, facilities, or trade secret information of the Company was used and which was developed entirely on my own time, unless (a) the Invention relates (i) directly to the business of the Company, or (ii) to the Company’s actual or demonstrably anticipated research or development, or (b) the Invention results from any work I perform for the Company.

(a)I WILL ADVISE THE COMPANY PROMPTLY IN WRITING OF ANY INVENTIONS THAT I BELIEVE MEET THE CRITERIA OF RCW 49.44.140 AND ARE NOT OTHERWISE DISCLOSED ON EXHIBIT A TO PERMIT A DETERMINATION OF OWNERSHIP BY THE COMPANY. ANY SUCH DISCLOSURE WILL BE RECEIVED IN CONFIDENCE. THE COMPANY MAY DISCLOSE THOSE INVENTIONS TO THE DEPARTMENT OF EMPLOYMENT SECURITY.

A.Current Obligations. At all times during my employment when I am earning cash compensation from the Company at least equivalent to twice the then-applicable Washington minimum wage, I agree that I will not engage in or undertake any other employment, occupation, consulting relationship, or commitment that is directly related to the business in which the Company is now involved or becomes involved or has plans to become involved, nor will I engage in any activities that conflict with my obligations to the Company. I understand that at any time during my employment when I am earning cash compensation from the Company less than the equivalent of twice the then-applicable Washington minimum wage, I am permitted to engage in or undertake outside employment, consulting relationships, occupations, commitments, and other activities so long as any such outside activity (i) does not diminish my own safety or the safety of others in connection with my performance of my work for the Company, (ii) does not interfere with the Company’s normal scheduling expectations for my position, and (iii) does not conflict with my duty of loyalty to the Company or create any conflict of interest with the Company under applicable law. I agree to provide the Company with advance written notice of any outside employment, consulting relationships, or occupations I plan to undertake that may be permitted by this paragraph. I understand that the permissibility of any outside employment, consulting relationships, occupations, or other activities under this paragraph shall in no way effect my obligation to comply with all of the other terms of this Agreement, which shall remain in full force and effect.

B.Prior Relationships. Without limiting the restrictions in Section 4.A, I represent and warrant that I have no other agreements, relationships, or commitments to any other person or entity that conflict with the provisions of this Agreement, my obligations to the Company under this Agreement, or my ability to become employed and perform the services for which I am being hired by the Company. I further agree that if I have signed a confidentiality agreement or similar type of agreement with any former employer or other entity, I will comply with the terms of any such agreement to the extent that its terms are lawful under applicable law. I represent and warrant that after undertaking a careful search (including searches of my computers, cell phones, electronic devices, and documents), I have returned all property and confidential information belonging to all prior employers (and/or other third parties I have performed services for in accordance with the terms of my applicable agreement). Moreover, I agree to fully indemnify the Company, its directors, officers, agents, employees, investors, shareholders, administrators, affiliates, divisions, subsidiaries, predecessor and successor corporations, and assigns for all verdicts, judgments, settlements, and other losses incurred by any of them resulting from my breach of my obligations under any agreement with a third party to which I am a party or obligation to which I am bound, as well as any reasonable attorneys’ fees and costs if the plaintiff is the prevailing party in such an action, except as prohibited by law.

A.Definition of Electronic Media Equipment and Electronic Media Systems. I understand that “Electronic Media Equipment” includes, but is not limited to, computers, external storage devices, thumb drives, mobile devices (including, but not limited to, smart phones, tablets, and e-readers), telephone equipment, and other electronic media devices. I understand that “Electronic Media Systems” includes, but is not limited to, computer servers, messaging and email systems or accounts, applications for computers or mobile devices, and web-based services (including cloud-based information storage accounts).

B.Return of Company Property. I understand that anything that I created or worked on for the Company while working for the Company belongs solely to the Company and that I cannot remove, retain, or use such information without the Company’s express written permission. Accordingly, upon separation from employment with the Company or upon the Company’s request at any other time, I will immediately deliver to the Company, and will not keep in my possession, recreate, or deliver to anyone else, any and all Company property, including, but not limited to, Company Confidential Information, Associated Third Party Confidential Information, all Company equipment including all Company Electronic Media Equipment, all tangible embodiments of the Inventions, all electronically stored information and passwords

to access such information, Company credit cards, records, data, notes, notebooks, reports, files, proposals, lists, correspondence, specifications, drawings, blueprints, sketches, materials, photographs, charts, any other documents and property, and reproductions of any of the foregoing items including, without limitation, those records maintained pursuant to Section 3.D. Notwithstanding the foregoing, I understand that I am allowed to keep a copy of the Company’s employee handbook and personnel records relating to my employment.

C.Return of Company Information on Company Electronic Media Equipment. In connection with my obligation to return information to the Company, I agree that I will not copy, delete, or alter any information, including personal information voluntarily created or stored, contained in Company Electronic Media Equipment before I return the information to the Company.

D.Return of Company Information on Personal Electronic Media Equipment. In addition, if I have used any personal Electronic Media Equipment or personal Electronic Media Systems to create, receive, store, review, prepare or transmit any Company information, including, but not limited to, Company Confidential Information, I agree to make a prompt and reasonable search for such information in good faith, including reviewing any personal Electronic Media Equipment or personal Electronic Media Systems to locate such information and, if I locate such information, I agree to notify the Company of that fact and then provide the Company with a computer-useable copy of all such Company information from those equipment and systems. I agree to cooperate reasonably with the Company to verify that the necessary copying is completed (including upon request providing a sworn declaration confirming the return of property and deletion of information), and, upon confirmation of compliance by the Company, I agree to delete and expunge all Company information.

a.No Expectation of Privacy in Company Property. I understand that I have no expectation of privacy in Company property, and I agree that any Company property is subject to inspection by Company personnel at any time with or without further notice. As to any personal Electronic Media Equipment or personal Electronic Media Systems that I have used for Company purposes, I agree that the Company, at its sole discretion, may have reasonable access, as determined by the Company in good faith, to such personal Electronic Media Equipment or personal Electronic Media Systems to review, retrieve, destroy, or ensure the permanent deletion of Company information from such equipment or systems or to take such other actions necessary to protect the Company or Company property, as determined by the Company reasonably and in good faith. I also consent to an exit interview and an audit to confirm my compliance with this Section 5, and I will certify in writing that I have complied with the requirements of this Section 5.

Upon separation from employment with the Company, I agree to immediately sign and deliver to the Company the “Termination Certification” attached hereto as Exhibit C.

In the event that I leave the employ of the Company, I hereby grant consent to notification by the Company to my new employer about my obligations under this Agreement. I also agree to keep the Company advised of my home and business address for a period of one (1) year after termination of my employment with the Company, so that the Company can contact me regarding my continuing obligations provided by this Agreement.

A.Definitions. For purposes of this Section 8, the following terms are defined as follows:

(1)“Covered Business” means any aspect of the Company’s business to which I contributed my services or knowledge, or was otherwise involved, directly or indirectly, or about which I knew or possessed Company Confidential Information, during my relationship with the Company.

(2)“Customer” means all persons or entities that have used or inquired of the Company’s services at any time during the Two-Year Lookback Period (as defined below).

(3)“Restricted Period” means the period of my employment with the Company and the twelve (12) month period immediately thereafter.

(4)“Territory” means (a) King County and all other counties in the State of Washington, (b) all other states of the United States of America, and (c) any other countries of the world; provided however, that any of the foregoing locations is part of the Territory only if, in such location at any time during the Two-Year Lookback Period (as defined below), the Company: (v) maintained non-trivial operations or facilities, (w) provided, marketed or made available goods or services, (x) had customers, (y) otherwise conducted business, or (z) took steps to do any of the foregoing.

(5) “Two-Year Lookback Period” means the two-year period immediately preceding the earlier of (i) the date of termination of my employment with the Company or (ii) the date the Company seeks enforcement of this Section 8.

B.Non-Compete Restrictions

(1)Restrictions. I agree that during the Restricted Period, I will not do any of the following without the prior written consent of the Company (the “Non-Compete Restrictions”):

(a)directly or indirectly provide services (including, for example, as an employee, consultant, advisor, contractor, partner, officer, director, manager, agent, representative, promoter, associate, principal, licensor, or licensee) to any portion of any person or entity's business that competes in the Territory with the Covered Business;

(b)organize, establish, purchase or operate, or prepare to organize, establish or operate, any business or other entity that competes in the Territory with the Covered Business;

(c)have any investment or other financial interest in any person or entity whose business competes in the Territory with the Covered Business (except for passive ownership of one percent (1%) or less of the securities of such entity whose securities are publicly traded on a national or regional stock exchange);

(d)contact, or cause to be contacted, directly or indirectly, or engage in any form of oral, verbal, written, recorded, transcribed, or electronic communication with, any Customer for the purposes of conducting any business that is competitive or similar to that of the Company or for the purpose of disadvantaging the Company’s business in any way; or

(e)solicit, encourage, or induce, or cause to be solicited, encouraged or induced, directly or indirectly, any franchisee, joint venture, supplier, vendor or contractor who conducted business with the Company at any time during the two-year period preceding the termination of my employment with the Company, to terminate or adversely modify any business relationship with the Company or not to proceed with, or enter into, any business relationship with the Company, nor shall I otherwise interfere with any business relationship between the Company and any such franchisee, joint venture, supplier, vendor or contractor.

(2)Additional Enforcement Requirements. I understand and acknowledge that I will be subject to the above Non-Compete Restrictions only to the extent my compensation from the

Company meets or exceeds the requirements set forth under applicable law, including, if applicable, RCW Ch. 49.62 (the “Statute”). Even if such compensation requirements are not currently satisfied, I understand and acknowledge that the Non-Compete Restrictions may later become enforceable if and when my compensation from the Company meets or exceeds the applicable compensation requirements under applicable law. For example, in calendar year 2022, the applicable minimum earnings threshold under the Statute is $107,301.05 in annualized cash compensation (such as salary, commissions and bonuses), calculated as of the earlier of the employment separation date or the date the Company seeks enforcement of the Non-Compete Restrictions, which amount will be adjusted for inflation in subsequent years. Further, to the extent the Company would be required to pay me additional compensation in accordance with applicable law following my separation from employment in order to enforce the Non-Compete Restrictions, I agree to accept such additional compensation if offered to me by the Company.

C. Non-Solicitation.

(1) Non-Solicitation of Customers. I agree that during the Restricted Period, I will refrain from any solicitation or other contact of, or causing the solicitation or other contact of, any Customer to cease its business with the Company or reduce the extent to which it does business with the Company.

(2)Non-Solicitation of Employees. I agree that during the Restricted Period, I will not directly or indirectly solicit or recruit, or attempt to solicit or recruit, any employee of the Company to leave their employment with the Company, nor will I contact any employee of the Company, or cause an employee of the Company to be contacted, for the purpose of leaving employment with the Company.

D.Notification to Company. Should I obtain other employment or commence providing services to another entity during my employment with the Company or within twelve (12) months immediately following the termination of my relationship with the Company, I agree to provide written notification to the Company as to the name and address of such entity, the position that I expect to hold, and a general description of my duties and responsibilities, at least three (3) business days prior to commencing such employment or services.

E.Acknowledgements.

(1)I acknowledge that, prior to my acceptance of the Company’s offer of employment, the Company provided me a copy of this Agreement for my review, including the terms of the restrictions in this Section 8.

(2)I acknowledge that I will derive significant value from the Company’s agreement to provide me with Company Confidential Information to enable me to optimize the performance of my duties to the Company. I further acknowledge that my fulfillment of the obligations contained in this Agreement, including, but not limited to, my obligation neither to disclose nor to use Company Confidential Information other than for the Company’s exclusive benefit and my obligations not to compete and not to solicit contained in subsections (B) and (C) above, is necessary to protect Company Confidential Information and to preserve the value and goodwill of the Company.

(3)I acknowledge the time, geographic and scope limitations of my obligations under subsections (B) and (C) above are fair and reasonable in all respects, especially in light of the Company’s need to protect Company Confidential Information and the scope and nature of the Company’s business, and that I will not be precluded from gainful employment if I am obligated not to compete with the Company or solicit its customers, employees, or others during the period and within the Territory as described above.

(4)I acknowledge and agree that the Customers did not use or inquire of the Company’s services solely as a result of my efforts, and that the efforts of other Company personnel and resources are responsible for the Company’s relationship with the Customers. I further acknowledge and agree that the identity of the Customers is not readily ascertainable or discoverable through public sources, and that the Company’s list of Customers was cultivated with great effort and secured through the expenditure of considerable time and money by the Company.

(5)I agree that nothing in this Section 8 shall affect my continuing obligations under this Agreement during and after the Restricted Period, including, without limitation, my obligations under Section 2.

F.Separate Covenants. The covenants contained in subsections (B) and (C) above shall be construed as a series of separate covenants, one for each city, county and state of any geographic area in the Territory. Except for geographic coverage, each such separate covenant shall be deemed identical in terms to the covenant contained in subsections (B) and (C) above. If, in any judicial or arbitral proceeding, a court or arbitrator refuses to enforce any of such separate covenants (or any part thereof), then, if and only if requested by the Company, such unenforceable covenant (or such part) shall (i) be revised by the court or arbitrator, or (ii) if revision is not permitted, shall be eliminated from this Agreement, to the extent necessary to permit the remaining separate covenants (or portions thereof) to be enforced. In the event that the provisions of subsections (B) and (C) above are deemed to exceed the time, geographic or scope limitations permitted by applicable law, the, if and only if requested by the Company, such provisions shall be reformed by the court or arbitrator to the maximum time, geographic or scope limitations, as the case may be, then permitted by such law. In the event that the applicable court or arbitrator does not exercise the power granted to it in the prior sentence (if so requested by the Company), or if the Company does not request that the court or arbitrator exercise such power, then I and the Company 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.

I agree to diligently adhere to all policies of the Company, including the Company’s insider trading policies and the Company’s Conflict of Interest Guidelines. A copy of the Company’s current Conflict of Interest Guidelines is attached as Exhibit D hereto, but I understand that these Conflict of Interest Guidelines may be revised from time to time during my employment.

Without limiting my obligations under Section 3.E above, I agree to execute any proper oath or verify any proper document required to carry out the terms of this Agreement. I represent and warrant that my performance of all the terms of this Agreement will not breach any agreement to keep in confidence information acquired by me in confidence or in trust prior to my employment by the Company. I hereby represent and warrant that I have not entered into, and I will not enter into, any oral or written agreement in conflict herewith.

I acknowledge that I have no reasonable expectation of privacy in any Company Electronic Media Equipment or Company Electronic Media System. All information, data, and messages created, received, sent, or stored in Company Electronic Media Equipment or Company Electronic Media Systems are, at all times, the property of the Company. As such, the Company has the right to audit and search all such items and systems, without further notice to me, to ensure that the Company is licensed to use the software on the Company’s devices in compliance with the Company’s software licensing policies, to ensure compliance with the Company’s policies, and for any other business-related purposes in the Company’s sole discretion. I understand that I am not permitted to add any unlicensed, unauthorized, or non-compliant applications to

the Company’s technology systems, including, without limitation, open source or free software not authorized by the Company, and that I shall refrain from copying unlicensed software onto the Company’s technology systems or using non-licensed software or websites. I understand that it is my responsibility to comply with the Company’s policies governing use of the Company’s documents and the internet, email, telephone, and technology systems to which I will have access in connection with my employment. In addition, as to any personal Electronic Media Equipment or personal Electronic Media Systems or other personal property that I have used for Company purposes, I agree that the Company may have reasonable access to such personal Electronic Media Equipment or personal Electronic Media Systems or other personal property to review, retrieve, destroy, or ensure the permanent deletion of Company information from such equipment or systems or property or take such other actions that are needed to protect the Company or Company property, as determined by the Company reasonably and in good faith.

I am aware that the Company has or may acquire software and systems that are capable of monitoring and recording all Company network traffic to and from any Company Electronic Media Equipment or Company Electronic Media Systems. The Company reserves the right to access, review, copy, and delete any of the information, data, or messages accessed through Company Electronic Media Equipment or Electronic Media Systems, with or without notice to me and/or in my absence. This includes, but is not limited to, all e-mail messages sent or received, all website visits, all chat sessions, all news group activity (including groups visited, messages read, and postings by me), and all file transfers into and out of the Company’s internal networks. The Company further reserves the right to retrieve previously deleted messages from e-mail or voicemail and monitor usage of the Internet, including websites visited and any information I have downloaded. In addition, the Company may review Internet and technology systems activity and analyze usage patterns, and may choose to publicize this data to assure that technology systems are devoted to legitimate business purposes.

12.ARBITRATION AND EQUITABLE RELIEF

A.Arbitration. IN CONSIDERATION OF MY EMPLOYMENT WITH THE COMPANY, ITS PROMISE TO ARBITRATE ALL EMPLOYMENT-RELATED DISPUTES WITH ME, AND MY RECEIPT OF COMPENSATION AND OTHER COMPANY BENEFITS, AT PRESENT AND IN THE FUTURE, I AGREE THAT ANY AND ALL CONTROVERSIES, CLAIMS, OR DISPUTES THAT I MAY HAVE WITH THE COMPANY (INCLUDING ANY COMPANY EMPLOYEE, OFFICER, DIRECTOR, SHAREHOLDER, TRUSTEE, OR BENEFIT PLAN OF THE COMPANY, IN THEIR CAPACITY AS SUCH OR OTHERWISE), ARISING OUT OF, RELATING TO, OR RESULTING FROM MY EMPLOYMENT OR RELATIONSHIP WITH THE COMPANY OR THE TERMINATION OF MY EMPLOYMENT OR RELATIONSHIP WITH THE COMPANY, INCLUDING ANY BREACH OF THIS AGREEMENT, SHALL BE SUBJECT TO BINDING ARBITRATION UNDER THE FEDERAL ARBITRATION ACT (THE “FAA”). THE FAA’S SUBSTANTIVE AND PROCEDURAL RULES SHALL GOVERN AND APPLY TO THIS ARBITRATION AGREEMENT WITH FULL FORCE AND EFFECT, AND ANY STATE COURT OF COMPETENT JURISDICTION MAY STAY PROCEEDINGS PENDING ARBITRATION OR COMPEL ARBITRATION IN THE SAME MANNER AS A FEDERAL COURT UNDER THE FAA. I FURTHER AGREE THAT, TO THE FULLEST EXTENT PERMITTED BY LAW, I MAY BRING ANY SUCH ARBITRATION PROCEEDING ONLY IN MY INDIVIDUAL CAPACITY, AND NOT AS A PLAINTIFF, REPRESENTATIVE OR CLASS MEMBER IN ANY PURPORTED CLASS, COLLECTIVE OR REPRESENTATIVE LAWSUIT OR PROCEEDING. EXCEPT AS PROVIDED BELOW, I AGREE TO ARBITRATE ANY AND ALL COMMON LAW AND/OR STATUTORY CLAIMS UNDER LOCAL, STATE, OR FEDERAL LAW, INCLUDING, BUT NOT LIMITED TO, CLAIMS UNDER THE WORKER ADJUSTMENT AND RETRAINING NOTIFICATION ACT, THE FAIR LABOR STANDARDS ACT, THE FAMILY AND MEDICAL LEAVE ACT, CLAIMS RELATING TO EMPLOYMENT STATUS, CLASSIFICATION AND RELATIONSHIP WITH THE COMPANY, AND CLAIMS OF WRONGFUL TERMINATION AND BREACH OF CONTRACT, EXCEPT AS PROHIBITED BY LAW. I ALSO AGREE TO ARBITRATE (EXCEPT AS PROHIBITED BY LAW) ANY AND ALL DISPUTES ARISING OUT OF OR RELATING TO THE INTERPRETATION OR APPLICATION

OF THIS AGREEMENT TO ARBITRATE, BUT NOT DISPUTES ABOUT THE ENFORCEABILITY, REVOCABILITY OR VALIDITY OF THIS AGREEMENT TO ARBITRATE OR ANY PORTION HEREOF. WITH RESPECT TO ALL SUCH CLAIMS AND DISPUTES THAT I AGREE TO ARBITRATE, I HEREBY EXPRESSLY AGREE TO WAIVE, AND DO WAIVE, ANY RIGHT TO A TRIAL BY JURY. I FURTHER UNDERSTAND THAT THIS AGREEMENT TO ARBITRATE ALSO APPLIES TO ANY DISPUTES THAT THE COMPANY MAY HAVE WITH ME. I UNDERSTAND THAT NOTHING IN THIS AGREEMENT REQUIRES ME TO ARBITRATE CLAIMS THAT CANNOT BE ARBITRATED UNDER APPLICABLE LAW, SUCH AS CLAIMS UNDER THE SARBANES-OXLEY ACT. SIMILARLY, NOTHING IN THIS AGREEMENT PROHIBITS ME FROM ENGAGING IN PROTECTED ACTIVITY, AS SET FORTH BELOW. I FURTHER UNDERSTAND AND ACKNOWLEDGE THAT, ONLY TO THE EXTENT RCW 49.44.085 REMAINS IN EFFECT AND IS NOT PREEMPTED BY THE FAA, THIS AGREEMENT TO ARBITRATE DOES NOT REQUIRE ME TO ARBITRATE OR OTHERWISE WAIVE MY RIGHT TO PUBLICLY PURSUE ANY CLAIMS OR ACTIONS ARISING UNDER THE WASHINGTON LAW AGAINST DISCRIMINATION (CHAPTER 49.60, REVISED CODE OF WASHINGTON) OR FEDERAL ANTIDISCRIMINATION LAWS (INCLUDING TITLE VII OF THE CIVIL RIGHTS ACT OF 1964, THE AMERICANS WITH DISABILITIES ACT OF 1990, THE AGE DISCRIMINATION IN EMPLOYMENT ACT OF 1967, AND THE OLDER WORKERS BENEFIT PROTECTION ACT).

B.Procedure. I AGREE THAT ANY ARBITRATION WILL BE ADMINISTERED BY JAMS, PURSUANT TO ITS EMPLOYMENT ARBITRATION RULES & PROCEDURES (THE “JAMS RULES”), WHICH ARE AVAILABLE AT http://www.jamsadr.com/rules-employment-arbitration/ AND FROM THE COMPANY. I AGREE THAT THE ARBITRATOR SHALL HAVE THE POWER TO DECIDE ANY MOTIONS BROUGHT BY ANY PARTY TO THE ARBITRATION, INCLUDING MOTIONS FOR SUMMARY JUDGMENT AND/OR ADJUDICATION, AND MOTIONS TO DISMISS AND DEMURRERS, APPLYING THE STANDARDS SET FORTH UNDER THE WASHINGTON CIVIL RULES. I AGREE THAT THE ARBITRATOR SHALL ISSUE A WRITTEN DECISION ON THE MERITS. I ALSO AGREE THAT THE ARBITRATOR SHALL HAVE THE POWER TO AWARD ANY REMEDIES AVAILABLE UNDER APPLICABLE LAW, AND THAT THE ARBITRATOR MAY AWARD ATTORNEYS’ FEES AND COSTS TO THE PREVAILING PARTY, WHERE PERMITTED BY APPLICABLE LAW. I AGREE THAT THE DECREE OR AWARD RENDERED BY THE ARBITRATOR MAY BE ENTERED AS A FINAL AND BINDING JUDGMENT IN ANY COURT HAVING JURISDICTION THEREOF. I UNDERSTAND THAT THE COMPANY WILL PAY FOR ANY ADMINISTRATIVE OR HEARING FEES CHARGED BY THE ARBITRATOR OR JAMS EXCEPT THAT I SHALL PAY ANY FILING FEES ASSOCIATED WITH ANY ARBITRATION THAT I INITIATE, BUT ONLY SO MUCH OF THE FILING FEES AS I WOULD HAVE INSTEAD PAID HAD I FILED A COMPLAINT IN A COURT OF LAW. I AGREE THAT THE ARBITRATOR SHALL APPLY SUBSTANTIVE WASHINGTON LAW TO ANY DISPUTE OR CLAIM. TO THE EXTENT THAT THE JAMS RULES CONFLICT WITH SUBSTANTIVE WASHINGTON LAW, WASHINGTON LAW SHALL TAKE PRECEDENCE. I AGREE THAT ANY ARBITRATION UNDER THIS AGREEMENT SHALL BE CONDUCTED IN KING COUNTY, WASHINGTON.

C.Remedy. EXCEPT FOR THE PURSUIT OF ANY PROVISIONAL REMEDY PERMITTED BY RCW SECTION 7.04A.080 OF THE WASHINGTON UNIFORM ARBITRATION ACT, OR AS OTHERWISE PROVIDED BY THIS AGREEMENT, I AGREE THAT ARBITRATION SHALL BE THE SOLE, EXCLUSIVE, AND FINAL REMEDY FOR ANY DISPUTE BETWEEN ME AND THE COMPANY.

D.Administrative Relief. I UNDERSTAND THAT THIS AGREEMENT DOES NOT PROHIBIT ME FROM PURSUING AN ADMINISTRATIVE CLAIM WITH A LOCAL, STATE, OR FEDERAL ADMINISTRATIVE BODY OR GOVERNMENT AGENCY THAT IS AUTHORIZED TO ENFORCE OR ADMINISTER LAWS RELATED TO EMPLOYMENT, INCLUDING, BUT NOT LIMITED TO, THE WASHINGTON STATE HUMAN RIGHTS COMMISSION, THE EQUAL

EMPLOYMENT OPPORTUNITY COMMISSION, THE NATIONAL LABOR RELATIONS BOARD, THE SECURITIES AND EXCHANGE COMMISSION, OR THE WORKERS’ COMPENSATION BOARD. THIS AGREEMENT DOES, HOWEVER, PRECLUDE ME FROM PURSUING A COURT ACTION REGARDING ANY SUCH CLAIM, EXCEPT AS PERMITTED BY LAW.

E.Voluntary Nature of Agreement. I ACKNOWLEDGE AND AGREE THAT I AM EXECUTING THIS AGREEMENT VOLUNTARILY AND WITHOUT ANY DURESS OR UNDUE INFLUENCE BY THE COMPANY OR ANYONE ELSE. I FURTHER ACKNOWLEDGE AND AGREE THAT I HAVE CAREFULLY READ THIS AGREEMENT AND THAT I HAVE ASKED ANY QUESTIONS NEEDED FOR ME TO UNDERSTAND THE TERMS, CONSEQUENCES, AND BINDING EFFECT OF THIS AGREEMENT AND FULLY UNDERSTAND IT, INCLUDING THAT I AM WAIVING MY RIGHT TO A JURY TRIAL. FINALLY, I AGREE THAT I HAVE BEEN PROVIDED AN OPPORTUNITY TO SEEK THE ADVICE OF AN ATTORNEY OF MY CHOICE BEFORE SIGNING THIS AGREEMENT.

A.Governing Law; Consent to Personal Jurisdiction. With the exception of those arbitration requirements set forth in Section 12 above that are governed by the FAA, this Agreement will be governed by the laws of the State of Washington without regard to Washington’s conflicts-of-law rules that may result in the application of the laws of any jurisdiction other than Washington. To the extent that any lawsuit is permitted under this Agreement, I hereby expressly consent to the personal and exclusive jurisdiction and venue of the state and federal courts located in or otherwise having jurisdiction over King County, Washington, for any lawsuit filed against me by the Company.

B.Assignability. This Agreement will be binding upon my heirs, executors, assigns, administrators, and other legal representatives, and will be for the benefit of the Company, its successors, and its assigns. The Associated Third Parties are intended third-party beneficiaries to this Agreement with respect to my obligations in Section 2.D. Notwithstanding anything to the contrary herein, the Company may assign this Agreement and its rights and obligations under this Agreement to any successor to all, or substantially all, of the Company’s relevant assets, whether by merger, consolidation, reorganization, reincorporation, sale of assets or stock, or otherwise. For the avoidance of doubt, the Company’s successors and assigns are authorized to enforce the Company’s rights under this Agreement.

C.Entire Agreement. This Agreement, together with the Exhibits herein and any executed written offer letter between me and the Company, to the extent such materials are not in conflict with this Agreement, sets forth the entire agreement and understanding between the Company and me with respect to the subject matter herein and supersedes all prior written and oral agreements, discussions, or representations between us, including, but not limited to, any representations made during my interview(s) or relocation negotiations. I represent and warrant that I am not relying on any statement or representation not contained in this Agreement. Any subsequent change or changes in my duties, salary, compensation, conditions or any other terms of my employment will not affect the validity or scope of this Agreement.

D.Headings. Headings are used in this Agreement for reference only and shall not be considered when interpreting this Agreement.

E.Severability. If a court or other body of competent jurisdiction finds, or the Parties mutually believe, any provision of this Agreement, or portion thereof, to be invalid or unenforceable, such provision will be enforced to the maximum extent permissible so as to effect the intent of the Parties, and the remainder of this Agreement will continue in full force and effect.

F.Modification, Waiver. No modification of or amendment to this Agreement, nor any waiver of any rights under this Agreement, will be effective unless in a writing signed by the President or

CEO of the Company and me. Waiver by the Company of a breach of any provision of this Agreement will not operate as a waiver of any other or subsequent breach.

G.Survivorship. The rights and obligations of the Parties to this Agreement will survive termination of my employment with the Company.

I understand that nothing in this Agreement limits or prohibits me from filing a charge or complaint with, or otherwise communicating or cooperating with or participating in any investigation or proceeding that may be conducted by, any federal, state or local government agency or commission, including the Securities and Exchange Commission, the Equal Employment Opportunity Commission, the Occupational Safety and Health Administration, and the National Labor Relations Board (“Government Agencies”), including disclosing documents or other information as permitted by law, without giving notice to, or receiving authorization from, the Company. Notwithstanding, in making any such disclosures or communications, I agree to take all reasonable precautions to prevent any unauthorized use or disclosure of any information that may constitute Company Confidential Information to any parties other than the Government Agencies. I further understand that I am not permitted to disclose the Company’s attorney-client privileged communications or attorney work product. In addition, I hereby acknowledge that the Company has provided me with notice in compliance with the Defend Trade Secrets Act of 2016 regarding immunity from liability for limited disclosures of trade secrets. The full text of the notice is attached in Exhibit B.

Date: May 27, 2022        /s/ Andrew Sandler        

            Signature

            Andrew S Sandler, MD        

            Name of Employee (typed or printed)

_X_ No inventions or improvements

___ Additional Sheets Attached

Date: May 27, 2022        /s/ Andrew Sandler        

            Signature

            Andrew S Sandler, MD        

            Name of Employee (typed or printed)

“ . . . An individual shall not be held criminally or civilly liable under any Federal or State trade secret law for the disclosure of a trade secret that—(A) is made—(i) in confidence to a Federal, State, or local government official, either directly or indirectly, or to an attorney; and (ii) solely for the purpose of reporting or investigating a suspected violation of law; or (B) is made in a complaint or other document filed in a lawsuit or other proceeding, if such filing is made under seal. . . . An individual who files a lawsuit for retaliation by an employer for reporting a suspected violation of law may disclose the trade secret to the attorney of the individual and use the trade secret information in the court proceeding, if the individual—(A) files any document containing the trade secret under seal; and (B) does not disclose the trade secret, except pursuant to court order.”

This is to certify that I do not have in my possession, nor have I failed to return, any devices, records, data, notes, reports, proposals, lists, correspondence, specifications, drawings, blueprints, sketches, materials, equipment, any other documents or property, or reproductions of any and all aforementioned items belonging to Alpine Immune Sciences, Inc. (the “Company”). Notwithstanding the foregoing, I understand that I may keep a copy of the Company’s employee handbook and personnel records relating to me.

I further certify that I have complied with all the terms of the Company’s At-Will Employment, Confidential Information, Invention Assignment, and Arbitration Agreement (the “Agreement”) signed by me, including the reporting of any inventions and original works of authorship (as defined therein) conceived or made by me (solely or jointly with others), as covered by that Agreement.

I understand that pursuant to the Agreement, and subject to its protected activity exclusion, I am obligated to preserve, as confidential, all Company Confidential Information and Associated Third Party Confidential Information, including trade secrets, confidential knowledge, data, or other proprietary information relating to products, processes, know-how, designs, formulas, developmental or experimental work, computer programs, databases, other original works of authorship, customer lists, business plans, financial information, or other subject matter pertaining to any business of the Company or any of its employees, clients, consultants, or licensees.

I also acknowledge that under the Agreement, for twelve (12) months from this date, I will not engage in the competition and solicitation prohibited by Section 8 of the Agreement. After leaving the Company’s employment, I will be employed by _______________________________________________________________ in the position of _______________________________________________________________.

Date:                                         

        Signature

                                        

        Name of Employee (typed or printed)

Address for Notifications:                                

                                

It is the policy of Alpine Immune Sciences, Inc. (the “Company”) to conduct its affairs in strict compliance with the letter and spirit of the law and to adhere to the highest principles of business ethics. Accordingly, all officers, employees, and independent contractors must avoid activities that are in conflict, or give the appearance of being in conflict, with these principles and with the interests of the Company. Subject to the limitations of RCW 49.44.210 (as in effect on or before June 8, 2022) and Chapter 133, Washington Laws 2022 regarding the permissibility of certain disclosures regarding, as applicable, certain illegal discrimination, illegal harassment, illegal retaliation, wage and hour violations, sexual assault, sexual harassment, sexual abuse, or conduct that is recognized as against a clear mandate of public policy (as described in Section 2.A of the At-Will Employment, Confidential Information, Invention Assignment, and Arbitration Agreement to which this Exhibit D is attached (the “Confidentiality Agreement”)), the following are potentially compromising situations that must be avoided:

1.    Revealing confidential information to outsiders or misusing confidential information. Unauthorized divulging of information is a violation of this policy whether or not for personal gain and whether or not harm to the Company is intended. (The Confidentiality Agreement elaborates on this principle and is a binding agreement.)

2.    Accepting or offering substantial gifts, excessive entertainment, favors, or payments that may be deemed to constitute undue influence or otherwise be improper or embarrassing to the Company.

3.    Participating in civic or professional organizations that might involve divulging confidential information of the Company.

4.    Initiating or approving personnel actions affecting reward or punishment of employees or applicants where there is a family relationship or is, or appears to be, a personal or social involvement.

5.    Initiating or approving any form of personal or social harassment of employees.

6.    Investing or holding outside directorship in suppliers, customers, or competing companies, including financial speculations, where such investment or directorship might influence in any manner a decision or course of action of the Company.

7.    Borrowing from or lending to employees, customers, or suppliers.

8.    Acquiring real estate of interest to the Company.

9.    Improperly using or disclosing to the Company any proprietary information or trade secrets of any other employer or other person or entity with whom obligations of confidentiality exist.

10.    Unlawfully discussing prices, costs, customers, sales, or markets with competing companies or their employees.

11.    Making any unlawful agreement with distributors with respect to prices.

12.    Improperly using or authorizing the use of any inventions that are the subject of patent claims of any other person or entity.

13.    Engaging in any conduct that is not in the best interest of the Company.

Each officer, employee, and independent contractor must take every necessary action to ensure compliance with these guidelines and to bring problem areas to the attention of higher management for review. Violations of this conflict of interest policy may result in immediate termination of employment.

Nothing in these guidelines is intended to limit employees’ rights to discuss the terms, wages, and working conditions of their employment, as protected by applicable law, including any rights an employee may have under Section 7 of the National Labor Relations Act. Also, nothing in these guidelines limits or prohibits employees from filing a charge or complaint with, or otherwise communicating or cooperating with or participating in any investigation or proceeding that may be conducted by, any federal, state or local government agency or commission, including the Securities and Exchange Commission, the Equal Employment Opportunity Commission, the Occupational Safety and Health Administration, and the National Labor Relations Board (“Government Agencies”), including disclosing documents or other information as permitted by law, without giving notice to, or receiving authorization from, the Company. Notwithstanding, in making any such disclosures or communications, employees must take all reasonable precautions to prevent any unauthorized use or disclosure of any information that may constitute Company Confidential Information to any parties other than the Government Agencies. Employees may not disclose the Company’s attorney-client privileged communications or attorney work product.