Employment Separation Agreement and General Released effective September 8, 2023, by and Between Laboratory Corporation of America Holdings and Paul Kirchgraber

On behalf of Laboratory Corporation of America Holdings and its subsidiary companies (the “Company”), I write to offer you (the “Employee”) the following Employment Separation Agreement and General Release (the “Agreement”) in accordance with the terms and conditions of the Laboratory Corporation of America Holdings Master Senior Executive Severance Plan (“Plan”).

1.0    Termination of Employment

1.1    Effective September 1, 2023 (the “Termination Date”), Employee’s employment with the Company was terminated; he/she shall perform no further services for the Company and his/her status as an employee and Officer of the Company shall cease on that date. Notwithstanding the foregoing, Employee will continue to serve as a board member to ACRO for the remainder of 2023. Employee and the Company further agree that the relationship created by this Agreement is purely contractual and that no employer-employee relationship is intended, nor shall such be inferred from the performance of obligations under this Agreement. Employee further agrees that any payments and/or benefits payable pursuant to this Agreement are contingent upon Employee’s execution and fulfillment of his/her obligations under this Agreement.

2.0    Separation Pay

2.1    In consideration for the covenants, promises and agreements herein and in particular Employee’s release of claims as well as covenants not to solicit, not to compete and not to disclose confidential information, the Company will pay Employee a severance in the total amount of $2,748,997.34, less applicable taxes and withholdings (hereafter referred to as “Severance Pay”), representing two times the sum of the Employee’s annual base salary of $630,000 plus Employee’s MIB Average Bonus as defined in the Plan of $744,498.67. The severance shall be paid in two installments, with the first installment of $1,3744,98.67, less taxes and withholding, made payable within 30 days following the Termination Date and the second installment of $1,374,498.67, less taxes and withholding, made payable within 30 days following the one year anniversary of the Termination Date.

2.2    The Company shall also pay the Employee a Medical Stipend of $20,600, less taxes and withholding, within 30 days following the Termination Date.

2.3    The Company shall not be responsible for making any payment under this Section 2.0 and its sub-parts if Employee has not complied in all material respects with the terms and conditions of this Agreement.

3.1    The Employee may receive reimbursement of expenses for outplacement services capped at $3,000.

3.2    Employee, his/her spouse, and his/her other dependent(s) may be eligible to elect continued health care coverage under the welfare plans sponsored by the Company, as provided in the applicable provisions of the Consolidated Omnibus Budget Reconciliation Act of 1985, as amended (“COBRA”), which provides generally that certain employees and their dependents may elect to continue coverage under employer-sponsored group health plans for a period of at least eighteen (18) months under certain conditions, including payment by Employee of the “Applicable Premium” as defined in Section 604 of the Employee Retirement Income Security Act of 1974, as amended, 29 U.S.C. §§ 1001 et seq. (“ERISA”). In the event Employee elects continuation of coverage under COBRA for himself/herself and his/her spouse and dependents, the Company will pay the Applicable Premium for such coverage (medical, dental, optical and prescription coverage for spouse and dependants) for 12 months, thereof. Employee shall be responsible for, and will be required to pay, the Applicable Premium for any COBRA coverage.

3.3    Employee shall be eligible for such benefits under the Company’s existing qualified plans as are provided under the circumstances (taking into account termination of employment as of the Termination Date) pursuant to the terms of the plan documents governing each of these plans. Except as otherwise provided herein or in the terms of any documents governing any employee benefit plan maintained by the Company, Employee will cease to be a participant in and will no longer have any coverage or entitlement to benefits, accruals, or contributions under any of the Company’s employee benefit plans effective upon the termination of his/her employment. Employee agrees that the payments made to him/her by the Company pursuant to this Agreement do not constitute compensation for purposes of calculating the amount of benefits Employee may be entitled to under the terms of any pension plan or for the purposes of accruing any benefit, receiving any allocation of any contribution, or having the right to defer any income in any profit-sharing or other employee pension benefit plan, including any cash or deferred arrangement.

3.4    Employee also understands that his/her equity awards are governed by the terms and conditions of the Laboratory Corporation of America Holdings 2016 Omnibus Incentive Plan or predecessor plans and individual equity award agreements. Nothing in this Agreement alters, changes, or amends the terms and conditions of said equity awards and award agreements.

3.5    Employee shall submit for reimbursement any and all unpaid business expenses to the Company within 30 days of the Termination Date. The Company will reimburse said expenses provided that they are consistent with, and reimbursable under, the Company’s travel and entertainment expense policy. The Company will not be responsible for reimbursing the Employee for any business expenses submitted after said 30 day period.

3.6    This Agreement shall never be construed as an admission by the Company of any liability, wrongdoing or responsibility on its part or on the part of any other person or entity described in Section 4.1 of this Agreement. The Company expressly denies any such liability, wrongdoing or responsibility.

4.1    Employee, on behalf of himself/herself and his/her heirs, assigns, transferees and representatives, hereby releases and forever discharges the Company, and its predecessors, successors, parents, subsidiaries, affiliates, assigns, representatives and agents, as well as all of their present and former directors, officers, employees, agents, shareholders, representatives, attorneys and insurers (collectively, the “Releasees”), from any and all claims, causes of actions, demands, damages or liability of any nature whatsoever, known or unknown, which Employee has or may have which arise out of his/her employment or cessation of employment with the Company, or which concern or relate in any way to any acts or omissions done or occurring prior to and including the date of this Agreement, including, but not limited to, claims arising under the Fair Labor Standards Act; the Equal Pay Act; Title VII of the Civil Rights Act of 1964; 42 U.S.C. § 1981 et seq.; the Americans with Disabilities Act; the Family and Medical Leave Act; the Employee Retirement Income Security Act of 1974; the Worker Adjustment and Retraining Notification Act, the Age Discrimination in Employment Act; the Genetic Information Nondiscrimination Act of 2008 (GINA), any and all claims for discrimination, wrongful termination and/or retaliation; claims for breach of contract, express or implied; claims for breach of the covenant of good faith and fair dealing; claims for compensation, including but not limited to wages, bonuses, or commissions except as otherwise contained herein; claims for benefits or fringe benefits, including, but not limited to, claims for severance pay and/or termination pay, except as otherwise contained herein; claims for, or relating to stock or stock options (except that nothing in this Agreement shall prohibit Employee from exercising any vested stock options or affect Employee’s claims to vested benefits in the Company’s Employees’ Retirement Savings Plan, Deferred Compensation Plan, Employee Stock Purchase Plan, or Cash Balance Retirement Plan, in accordance with the terms of the applicable stock option agreement(s) and applicable plan documents); claims for unaccrued vacation pay; claims arising in tort, including, but not limited to, claims for invasion of privacy, negligent or intentional infliction of emotional distress, fraud, negligent or intentional misrepresentation, and defamation; claims for quantum meruit and/or unjust enrichment; and any and all other claims arising under any other federal, state, local or foreign laws, as well as any and all other common law legal or equitable claims.

4.2    Employee represents that he/she has not initiated any action or charge against any of the Releasees with any Federal, State or local court or administrative agency. Employee knowingly and intentionally waives any rights to any additional recovery that might be sought on his/her behalf by any other person, entity, local, state or federal government or agency thereof, including specifically and without limitation, the United States Department of Labor, or the Equal Employment Opportunity Commission and comparable State agencies.

4.4    Notwithstanding the provisions of Section 4.1, said release does not apply to any and all statutory or other claims that are prohibited from waiver by Federal, State or local law.

4.5    The parties agree that the Company has no prior legal obligation to make the additional payments set forth above in Sections 2.0 and 3.0 (including the sub-parts thereto) and

that it has been exchanged for the promises of Employee stated in this Agreement. It is specifically understood and agreed that the additional payments, and each of them, are good and adequate consideration to support the waivers, releases and obligations contained herein, including, without limitation, Sections 4.0, 5.0, 6.0, 7.0, and 8.0, and their respective sub-parts, and that all of the payments set forth Sections 2.0 and 3.0 (including the sub-parts thereto) are of value in addition to anything to which Employee already was entitled prior to the execution of this Agreement.

5.1    The parties acknowledge that during the course of Employee’s employment with the Company, he/she was given access, on a confidential basis, to Confidential Information which the Company has for years collected, developed, and/or discovered through a significant amount of effort and at great expense. The parties acknowledge that the Confidential Information of the Company is not generally known or easily obtained in the Company’s trade, industry, business, or otherwise and that maintaining the secrecy of the Confidential Information is extremely important to the Company’s ability to compete with its competitors.

5.2    Employee agrees that for a period of seven (7) years from the date of this Agreement, Employee shall not, without the prior written consent of the Company, divulge to any third party or use for his/her own benefit, or for any purpose other than the exclusive benefit of the Company, any Confidential Information of the Company; provided however, that nothing herein contained shall restrict Employee’s ability to make such disclosures as such disclosures may be required by law; and further providing that nothing herein contained shall restrict Employee from divulging information that is readily available to the general public as long as such information did not become available to the general public as a direct or indirect result of Employee’s breach of this section of this Agreement.

5.3    The term “Confidential Information” in this Agreement shall mean information that is not readily and easily available to the public or to persons in the same business, trade, or industry of the Company, and that concerns the Company’s prices, pricing methods, costs, profits, profit margins, suppliers, methods, procedures, processes or combinations or applications thereof developed in, by, or for the Company’s business, research and development projects, data, business strategies, marketing strategies, sales techniques, customer lists, customer information, or any other information concerning the Company or its business that is not readily and easily available to the public or to those persons in the same business, trade, or industry of the Company. The term “customer information” as used in this Agreement shall mean information that is not readily and easily available to the public or to those persons in the same business, trade, or industry and that concerns the course of dealing between the Company and its customers or potential customers solicited by the Company, customer preferences, particular contracts or locations of customers, negotiations with customers, and any other information concerning customers obtained by the Company that is not readily and easily available to the public or to those in the business, trade, or industry of the Company.

5.4    Employee acknowledges that all information, the disclosure of which is prohibited hereby, is of a confidential and proprietary character and of great value to the Company, and upon the execution of this Agreement (or as soon thereafter as is reasonably practicable), Employee shall forthwith deliver to the Company all records, memoranda, data, and documents of any description that refer to or relate in any way to such information and shall return to the Company any of its equipment and property which may then be in Employee’s possession or under Employee’s personal control.

5.6    Employee hereby agrees that any failure to fully and completely comply with this provision shall entitle the Company to seek damages for a demonstrated breach of the confidentiality provision, to include recoupment of monies paid hereunder.

5.7    Notwithstanding the restrictions set forth in Section 5.0 and its subparts, Employee may disclose information protected under Section 5.0 and its subparts if and only if such is (i) lawfully required by any government agency; (ii) otherwise required to be disclosed by law (including legally required financial reporting) and/or by court order; (iii) necessary in any legal proceeding in order to enforce any provision of this Agreement or (iv) made to the Securities Exchange Commission regarding security law issues or other government agency regarding a regulatory matter. Employee further agrees that he/she will notify the Company in writing within five (5) calendar days of the receipt of any subpoena, court order, administrative order or other legal process requiring disclosure of information subject to Section 5.0 and sub-parts thereto. Employee may also disclose the contents of Section 6.0 and its sub-parts and only those contents to any subsequent employer.

6.1    For a period of twelve (12) months following the Termination Date, Employee shall not become an owner in, shareholder with more than a 2% equity interest in, investor in, or an employee, contractor, consultant, advisor, representative, officer, director, or agent of, a trade or business that offers products and services that are the same or substantially similar to the products and services provided by the Employer Company in any geographic market in which the Employer Company conducts business (“Competitor”); provided, however, that the duties and responsibilities of said employment or engagement as an owner in, shareholder with more than 2% equity interest in, investor in, contractor, consultant, advisor, representative, employee, officer, director or agent are (i) the same, similar, or substantially related to current duties and responsibilities or duties or responsibilities performed by Employee while employed by the Company at any time during a six (6) month period prior to Employee’s separation of employment and (ii) related to or concerning the Competitor’s business activities in the Restricted Territory. The parties agree and affirm that their intention with respect to Section 6.1 is that Employee’s activities shall be limited only for the twelve (12) month period after the separation of employment for any reason. The provisions calling for a "look back" of six (6) calendar months prior to the separation of employment are intended solely as a means of identifying the duties and responsibilities that will define the restricted activities covered by Section 6.1 and are not intended to nor shall they, under any circumstances, be construed to define the length or term of any such restriction. For purposes of Section 6.1, the term “Restricted Territory” means the geographic area that was part of Employee’s duties and responsibilities within a period of six (6) month period prior to the date of your termination of employment. If a court of competent jurisdiction determines that the Restricted Territory as defined herein is too restrictive, then the parties agree that the court may reduce or limit the Restricted Territory to the largest acceptable area so as to enable the enforcement of Section 6.1.

6.2    For a period of twelve (12) months following the Termination Date, Employee will not, either directly or indirectly, or on behalf of any person, business, partnership, or other entity, call upon, contact, or solicit any customer or customer prospect of the Company, or any representative of the same, with a view toward the sale or providing of any service or product competitive with the Company’s Business; provided, however, the restrictions set forth in this Section shall apply only to customers or prospects of the Company, or representatives of the same, with which during the past 12 month period the Employee had contact or who were known by Employee to be customers or prospects, or representatives of the same, of the Company. The parties agree and affirm that their intention with respect to Section 6.2 of this Agreement is that Employee's activities be limited only for a twelve (12) month period after the Termination Date for any reason. The provisions calling for a "look back" of 12 calendar months prior to the

Termination Date are intended solely as a means of identifying the clients to which such restrictions apply and are not intended to nor shall they, under any circumstances, be construed to define the length or term of any such restriction.

6.3    For a period of twelve 12 months following the Termination Date, Employee shall not directly or indirectly through a subordinate, co-worker, peer, or any other person or entity contact, solicit, encourage or induce any officer, director or employee of the Company or its subsidiary companies to work for or provide services to Employee and/or any other person or entity.

6.4    Employee acknowledges and agrees that the foregoing restrictions are necessary for the reasonable and proper protection of the Company; are reasonable in respect to subject matter, length of time, geographic scope, customer scope, and scope of activity to be restrained; and are not unduly harsh and oppressive so as to deprive Employee of his/her livelihood or to unduly restrict Employee’s opportunity to earn a living after termination of Employee’s employment with the Company. Employee further acknowledges and agrees that if any restrictions set forth in this Section are found by any court of competent jurisdiction to be unenforceable or otherwise against public policy, the restriction shall be interpreted to extend only over the maximum period of time or other restriction as to which it would otherwise be enforceable.

6.5    Employee acknowledges and agrees that because the violation, breach, or threatened breach of this Section and its sub-parts would result in immediate and irreparable injury to the Company, the Company shall be entitled, without limitation of remedy, to (a) temporary and permanent injunctive and other equitable relief restraining Employee from activities constituting a violation, breach or threatened breach of this Section and its sub-parts to the fullest extent allowed by law; (b) all such other remedies available at law or in equity, including without limitation the recovery of damages, reasonable attorneys’ fees and costs; and (c) withhold any further rights, payments or benefits under this Agreement which become due and owing after the occurrence of said violation, breach, or threatened breach, including, without limitation, any rights or claims under Sections 2.0 and 3.0 and the sub-parts thereto.

7.1    Employee agrees that within 10 days after execution of this Agreement, he/she will return any and all Company documents and any copies thereof, in any form whatsoever, including computer records or files, containing secret, confidential and/or proprietary information or ideas, and any other Company property (including, but not limited to, any cell phones, laptops, notepads, ipads, printers and/or other computer equipment) in Employee’s possession or control.

8.1    Without limitation as to time, Employee agrees to cooperate and make all reasonable and lawful efforts to assist the Company in addressing any issues which may arise concerning any matter with which he/she was involved during his/her employment with the Company, including, but not limited to cooperating in any litigation arising therefrom.

8.2    Employee will not (except as required by law) communicate to anyone, whether by word or deed, whether directly or through any intermediary, and whether expressly or by suggestion or innuendo, any statement, whether characterized as one of fact or of opinion, that is intended to cause or that reasonably would be expected to cause any person to whom it is communicated to have (1) a lowered opinion of the Company or any affiliates, including a lowered opinion of any products manufactured, sold, or used by, or any services offered or rendered by the Company or

its affiliates; and/or (2) a lowered opinion of the Company’s creditworthiness or business prospects. Employee’s obligation in this regard extends to the reputation of the Company and any other person or entity described in Section 4.1 of this Agreement. This Section shall not be construed as prohibiting the Employee from communicating truthful information (a) in response to assistance requested under Section 8.1 of this Agreement, (b) in any formal or informal proceeding with a government agency or investigator, (c) any litigation against the Company including, but not limited to, qui tam lawsuits whether the government decides to intervene or declines to intervene and the relator moves forward pursuing its claims, (d) as required by law, such as in response to a duly-issued subpoena, or (e) any action to enforce the terms of this Agreement or right not waived under Section 4.0 and subparts thereunder.

9.1    Notwithstanding any provisions of this Agreement to the contrary, if the Employee is a “specified employee” (within the meaning of Section 409A of the Internal Revenue Code of 1986, as amended (the “Code”) and determined pursuant to procedures adopted by the Company) at the Termination Date and if any portion of the payments or benefits to be received by the Employee would be considered deferred compensation under Section 409A of the Code, amounts that would otherwise be payable pursuant to this Agreement during the six-month period immediately following the Employee’s Termination Date (the “Delayed Payments”) and benefits that would otherwise be provided pursuant to this Agreement (the “Delayed Benefits”) during the six-month period immediately following the Employee’s Termination Date (such period, the “Delay Period”) shall instead be paid or made available on the earlier of (i) the first business day of the seventh (7th) month following the Termination Date or (ii) the Employee’s death (the applicable date, the “Permissible Payment Date”). The Company shall also reimburse the Employee for the after-tax cost incurred by the Employee in independently obtaining any Delayed Benefits (the “Additional Delayed Payments”).

9.2    With respect to any amount of expenses eligible for reimbursement under Sections 3.1, 3.4 and 9.1, such expenses shall be reimbursed by the Company within thirty (30) calendar days following the date on which the Company receives the applicable invoice from the Employee but in no event later than December 31 of the year following the year in which the Employee incurs the related expenses; provided, that with respect to reimbursement relating to the Additional Delayed Payments, such reimbursement shall be made on the Permissible Payment Date. In no event shall the reimbursements or in-kind benefits to be provided by the Company in one taxable year affect the amount of reimbursements or in-kind benefits to be provided in any other taxable year, nor shall the Employee’s right to reimbursement or in-kind benefits be subject to liquidation or exchange for another benefit.

9.3    It is the intention of the parties that payments or benefits payable under this Agreement not be subject to the additional tax imposed pursuant to Section 409A of the Code. To the extent such potential payments or benefits could become subject to such Section, the Company may amend this Agreement with the goal of giving the Covered Employee the economic benefits described herein in a manner that does not result in such tax being imposed.

9.4    For purposes of Section 409A of the Code, an Employee’s right to receive any “installment” payments pursuant to this Agreement shall be treated as a right to receive a series of separate and distinct payments.

10.1    This Agreement is binding on, and shall inure to the benefit of, the Parties hereto and their heirs, representatives, transferees, principals, executors, administrators, predecessors, successors, parents, subsidiaries, affiliates, assigns, agents, directors, officers and employees.

10.2    The Plan is incorporated herein by reference. This Agreement constitutes the complete agreement between, and contains all of the promises and undertakings by the Parties. Employee agrees that the only considerations for signing this Agreement are the terms stated herein above and that no other representations, promises, or assurances of any kind have been made to him by the Company, its attorneys, or any other person as an inducement to sign this Agreement. Any and all prior agreements, representations, negotiations and understandings among the Parties, oral or written, express or implied, with respect to the subject matter hereof are hereby superseded and merged herein.

10.3    This Agreement may not be revised or modified without the mutual written consent of the Parties.

10.4    The Parties acknowledge and agree that they have each had sufficient time to consider this Agreement and consult with legal counsel of their choosing concerning its meaning prior to entering into this Agreement. In entering into this Agreement, no Party has relied on any representations or warranties of any other Party other than the representations or warranties expressly set forth in this Agreement. Employee acknowledges that he/she has read this Agreement and that he/she possesses sufficient education and experience to fully understand the terms of this Agreement as it has been written, the legal and binding effect of this Agreement, and the exchange of benefits and payments for promises hereunder, and that he/she has had a full opportunity to discuss or ask questions about all such terms.

10.5    Except as otherwise provided in this Section, if any provision of this Agreement shall be determined to be invalid or unenforceable by a court of competent jurisdiction, that part shall be ineffective to the extent of such invalidity or unenforceability only, without in any way affecting the remaining parts of said provision or the remaining provisions of this Agreement; provided that, if any provision contained in this Agreement shall be adjudicated to be invalid or unenforceable because such provision is held to be excessively broad as to duration, geographic scope, activity or subject, such provision shall be deemed amended by limiting and reducing it so as to be valid and enforceable to the maximum extent compatible with the applicable laws of such jurisdiction, and such amendment only to apply with respect to the operation of such provision in the applicable jurisdiction in which the adjudication is made. If as a result of litigation brought by the Employee or as a result of any defense asserted by the Employee Section 6.0 or any of its sub-parts of this Agreement is deemed invalid or unenforceable, in whole or in part, by a court of competent jurisdiction, this entire Agreement shall be null and void, and any consideration paid hereunder shall be repaid immediately by Employee upon receipt of notice thereof.

10.6    Employee agrees that because he/she has rendered services of a special, unique, and extraordinary character, damages may not be an adequate or reasonable remedy for breach of his/her obligations under this Agreement. Accordingly, in the event of a breach or threatened breach by Employee of the provisions of this Agreement, the Company shall be entitled to (a) an injunction restraining Employee from violating the terms hereof, or from rendering services to any person, firm, corporation, association, or other entity to which any confidential information, trade secrets, or proprietary materials of the Company have been disclosed or are threatened to be disclosed, or for which Employee is working or rendering services, or threatens to work or render services (b) all such other remedies available at law or in equity, including without limitation the recovery of damages, reasonable attorneys’ fees and costs, and (c) withhold any further payments under this Agreement which become due and owing after the occurrence of said violation, breach or threatened breach. Nothing herein shall be construed as prohibiting the Company from pursuing any other remedies available to it for such breach or threatened breach of this Agreement, including the right to terminate any payments to Employee pursuant to this Agreement or the recovery of damages from Employee. Employee agrees that the issuance of

the injunction described in this Section may be without the posting of any bond or other security by the Company.

10.7    Such notice and any other notices required under this Agreement shall be served upon the Company by certified mail, return receipt requested, or by expressed delivery by a nationally recognized delivery service company such as Federal Express as follows:

10.8    This Agreement shall be construed in accordance with and governed by the laws, except choice of law provisions, of the State of North Carolina and shall govern to the exclusion of the laws of any other forum including but not limited to the laws of the State of California. The parties further agree that any action, special proceeding or other proceeding with respect to this Agreement shall be brought exclusively in the federal or state courts of the State of North Carolina. Employee and Company irrevocably consent to the jurisdiction of the Federal and State courts of North Carolina and that Employee hereby consents and submits to personal jurisdiction in the State of North Carolina. Employee and Company irrevocably waive any objection, including an objection or defense based on lack of personal jurisdiction, improper venue or forum non-conveniens which either may now or hereafter have to the bringing of any action or proceeding in connection with this Agreement. Employee acknowledges and recognizes that in the event that he/she has breached this Agreement, the Company may initiate a lawsuit against him/her in North Carolina, that Employee waives his/her right to have that lawsuit be brought in a court located closer to where he/she may reside, and that Employee will be required to travel to and defend himself/herself in North Carolina.

10.9    The Effective Date of this Agreement shall be either (a) the Termination Date or (b)

the day after expiration of the seven (7) day revocation period set forth in Section 4.3 of this Agreement, whichever date is later.

If you agree with the foregoing, please sign below and return two (2) originals to me. You should retain one (1) original copy of this Agreement for your records.