Document:

Exhibit

COMSCORE, INC.
CHANGE OF CONTROL AND SEVERANCE AGREEMENT
This Change of Control and Severance Agreement (the “Agreement”) is made and entered into by and between [NAME] (“Executive”) and comScore, Inc., a Delaware corporation (the “Company”), effective as of [DATE] (the “Effective Date”).
RECITALS
1.The Compensation Committee (the “Committee”) of the Board of Directors of the Company (the “Board”) believes that it is in the best interests of the Company and its stockholders to assure that the Company will have the continued dedication and objectivity of Executive, to provide Executive with an incentive to continue his/her employment, and to motivate Executive to maximize the value of the Company for the benefit of its stockholders.
2.The Committee believes that it is imperative to provide Executive with certain severance benefits upon Executive’s termination of employment under certain circumstances.  These benefits will provide Executive with enhanced financial security and incentive and encouragement to remain with the Company.
3.Certain capitalized terms used in the Agreement are defined in Section 6 below.
AGREEMENT
NOW, THEREFORE, in consideration of the mutual covenants contained herein, the parties hereto agree as follows:
1.    Term of Agreement. This Agreement will have an initial term of three (3) years commencing on the Effective Date (the “Initial Term”). On the third anniversary of the Effective Date, this Agreement will renew automatically for additional one (1) year terms (each an “Additional Term” and together with the Initial Term, the “Term”), unless either party provides the other party with written notice of non-renewal at least sixty (60) days prior to the date of automatic renewal; provided, however, that if the Company enters into a definitive agreement to be acquired and the transactions contemplated thereby would result in the occurrence of a Change of Control if consummated, then the Company will no longer be permitted to provide Executive with written notice to not renew this Agreement, and if the Change of Control is consummated, the Agreement will continue in effect through the longer of the date that is twelve (12) months following the effective date of the Change of Control or the remainder of the Term then in effect (for purposes of clarification, it will be possible for the Term of the Agreement to automatically extend after the Company enters into the definitive agreement, but before the Change of Control is consummated). If the definitive agreement is terminated without the transactions contemplated thereby having been consummated and at the time of such termination there is at least twelve (12) months remaining in the Term, the Agreement will continue in effect for the remainder of the Term then in effect, but if there is less than twelve (12) months remaining in the Term then in effect, the Agreement will 

automatically extend for an additional one (1) year from the date the definitive agreement is terminated. If Executive becomes entitled to benefits under Section 3 during the term of this Agreement, the Agreement will not terminate until all of the obligations of the parties hereto with respect to this Agreement have been satisfied.
2.    At-Will Employment.  The Company and Executive acknowledge that Executive’s employment is and will continue to be at-will, as defined under applicable law.  If Executive’s employment terminates for any reason, Executive will not be entitled to any payments, benefits, damages, awards or compensation other than as provided by this Agreement, the payment of accrued but unpaid wages or other compensation, as required by law, as may otherwise be available in accordance with the Company’s established employee plans, and any unreimbursed reimbursable expenses, and this Agreement supersedes all prior agreements or arrangements relating to the same.
3.    Severance Benefits.
(a)    Termination without Cause or Resignation for Good Reason Absent a Change of Control.  If the Company terminates Executive’s employment with the Company without Cause or if Executive resigns from such employment for Good Reason, and such termination occurs prior to a Change of Control, then subject to Section 4, Executive will receive the following:
(i)    Accrued Compensation.  The Company will pay Executive all accrued but unpaid vacation, expense reimbursements, wages, and other benefits due to Executive under any Company-provided plans, policies, and arrangements.
(ii)    Severance Payment.  (A) Executive will be paid continuing payments of severance pay at a rate equal to Executive’s annual base salary, as then in effect, for [TIME] from the date of such termination of employment, to be paid periodically in accordance with the Company’s normal payroll policies; and (B) Executive will be paid continuing payments of severance pay at a rate equal to Executive’s target short-term incentive award, as then in effect, for [TIME] from the date of such termination of employment, to be paid periodically in accordance with the Company’s normal payroll policies.
(iii)    Short-Term Incentive.  At such time as the Company pays short-term incentive awards, if any, to senior executives of the Company for the year in which Executive’s termination occurs, the Company shall pay Executive a lump sum cash amount equal to the product obtained by multiplying (A) the full-year short-term incentive award that Executive would have earned had Executive remained employed through the end of the calendar year in which the termination of employment occurs based on the degree of satisfaction of the applicable performance objectives, as determined in good faith by the Committee (except that any individual subjective performance objectives will be deemed achieved at the target level), by (B) a fraction, the numerator of which is the total number of days that have elapsed during the calendar year through the date of termination of employment and the denominator of which is the total number of days in such calendar year.
(iv)    Continued Executive Benefits.  If Executive elects continuation coverage pursuant to the Consolidated Omnibus Budget Reconciliation Act of 1985, as amended 

(“COBRA”) within the time period prescribed pursuant to COBRA for Executive and Executive’s eligible dependents, then the Company will reimburse Executive for the COBRA premiums for such coverage (at the coverage levels in effect immediately prior to Executive’s termination) for the period coincident with the severance benefit period set forth above.  The reimbursements will be made by the Company to Executive consistent with the Company’s normal expense reimbursement policy. Notwithstanding the foregoing, should the Company determine in its sole discretion that it cannot provide the above COBRA benefits without potentially violating applicable law (including, without limitation, Section 2716 of the Public Health Service Act), the Company will in lieu thereof provide to Executive a taxable monthly payment for the same period in an amount equal to the monthly COBRA premium Executive would be required to pay to continue his or her group health coverage in effect on the date of his or her termination of employment (which amount will be based on the premium for the first month of COBRA coverage), which payments will be made regardless of whether Executive elects COBRA continuation coverage.
(b)    Termination without Cause or Resignation for Good Reason in Connection with a Change of Control.  If the Company terminates Executive’s employment with the Company without Cause or if Executive resigns from such employment for Good Reason, and such termination occurs on or within twelve (12) months after a Change of Control, then subject to Section 4, Executive will receive the following:
(i)    Accrued Compensation.  The Company will pay Executive all accrued but unpaid vacation, expense reimbursements, wages, and other benefits due to Executive under any Company-provided plans, policies, and arrangements (“Accrued Items”).
(ii)    Severance Payment.  (A) On the 60th day following the termination of employment, Executive will receive a lump sum cash payment in an amount equal to [TIME] of Executive’s annual base salary as in effect immediately prior to Executive’s termination date or, if greater, at the level in effect immediately prior to the Change of Control; and (B) on the 60th day following the termination of employment, Executive will receive a lump sum cash payment in an amount equal to [TIME] of Executive’s target short-term incentive award for the year in which the termination of employment occurred.
(iii)    Short-Term Incentive.  On the 60th day following the termination of employment, the Company shall pay Executive a lump sum cash amount equal to the product obtained by multiplying (A) an amount equal to the greater of (1) Executive’s target short-term incentive award for the year of termination of employment and (2) the full-year short-term incentive award that Executive would have earned had Executive remained employed through the end of the calendar year in which the termination of employment occurs based on the degree of satisfaction of the applicable performance objectives (except that any individual subjective performance objectives will be deemed achieved at the target level), by (B) a fraction, the numerator of which is the total number of days that have elapsed during the calendar year through the date of termination of employment and the denominator of which is the total number of days in such calendar year.
(iv)    Continued Executive Benefits.  If Executive elects continuation coverage pursuant to COBRA within the time period prescribed pursuant to COBRA for Executive and Executive’s eligible dependents, then the Company will reimburse Executive for the COBRA 

premiums for such coverage (at the coverage levels in effect immediately prior to Executive’s termination) for the period coincident with the severance period set forth above.  The reimbursements will be made by the Company to Executive consistent with the Company’s normal expense reimbursement policy.  Notwithstanding the foregoing, should the Company determine in its sole discretion that it cannot provide the above COBRA benefits without potentially violating applicable law (including, without limitation, Section 2716 of the Public Health Service Act), the Company will in lieu thereof provide to Executive a taxable monthly payment for the same period in an amount equal to the monthly COBRA premium Executive would be required to pay to continue his or her group health coverage in effect on the date of his or her termination of employment (which amount will be based on the premium for the first month of COBRA coverage), which payments will be made regardless of whether Executive elects COBRA continuation coverage.
(v)    Vesting Acceleration of Equity Awards.  Executive’s then outstanding and unvested Equity Awards as of the date of the termination of employment will be subject to the following treatment (and otherwise be subject to the terms consistent with the applicable plan and award agreements, including the time for payment of such award):
(A)    Equity Awards that are not subject to the attainment of performance goals will become vested in full; and
(B)    Equity Awards that are subject to vesting upon the attainment of performance goals shall become vested in amount equal to either (a) the target number of shares subject to the Equity Award or (b) if at least 50% of the applicable performance period has been completed as of the date of termination and it would result in a greater number of shares becoming vested based on the degree of satisfaction of the applicable performance objectives through such date, the total number of shares that would have been earned had Executive remained employed through the end of the applicable performance period (as determined in good faith by the Committee), in each case less the number of shares that had already become vested as of the date of such termination of employment in respect of such Equity Award.
(c)    Voluntary Resignation; Termination for Cause.  If Executive’s employment with the Company terminates (i) voluntarily by Executive (other than for Good Reason) or (ii) for Cause by the Company, then Executive will not be entitled to receive severance or other benefits except for those (if any) as may then be established under the Company’s then existing severance and benefits plans and practices or pursuant to other written agreements with the Company.
(d)    Disability; Death.  If the Company terminates Executive’s employment as a result of Executive’s Disability, or Executive’s employment terminates due to his or her death, then Executive will not be entitled to receive any other severance or other benefits, except for (i) Accrued Items, and (ii) those severance or other benefits (if any) as may then be established under the Company’s then existing written severance and benefits plans and practices or pursuant to other written agreements with the Company.
(e)    Exclusive Remedy.  In the event of a termination of Executive’s employment as set forth in Section 3(a) or 3(b) of this Agreement, the provisions of Section 3 are intended to be and are exclusive and in lieu of any other rights or remedies to which Executive otherwise may be 

entitled, whether at law, tort or contract, in equity, or under this Agreement (other than the payment of accrued but unpaid wages, as required by law, and any unreimbursed reimbursable expenses).  Executive will be entitled to no benefits, compensation or other payments or rights upon a termination of employment other than those benefits expressly set forth in Section 3 of this Agreement.
4.    Conditions to Receipt of Severance
(a)    Release of Claims Agreement.  The receipt of any severance payments or benefits pursuant to this Agreement is subject to Executive signing and not revoking a separation agreement and release of claims in a form acceptable to the Company (the “Release”), which must become effective and irrevocable no later than the sixtieth (60th) day following Executive’s termination of employment (the “Release Deadline”).  If the Release does not become effective and irrevocable by the Release Deadline, Executive will forfeit any right to severance payments or benefits under this Agreement.  In no event will severance payments or benefits be paid or provided until the Release actually becomes effective and irrevocable.  Except as required by Section 4(c) or as otherwise specified in Section 3, any severance payments or benefits under this Agreement will be paid, or, in the case of installments, will commence, in the first payroll following the effective date of the Release, but not later than fourteen (14) days following the effective date of the Release.
(b)    Confidential Information and Invention Assignment Agreements.  Executive’s receipt of any payments or benefits under Section 3 will be subject to Executive continuing to comply with the terms of the At Will Employment, Confidential Information, Invention Assignment and Arbitration Agreement most recently entered into between the Company and Executive, as such agreement may be amended from time to time.  Notwithstanding anything in this Agreement to the contrary, nothing in this Agreement prevents Executive from providing, without prior notice to the Company, information to governmental authorities regarding possible legal violations or otherwise testifying or participating in any investigation or proceeding by any governmental authorities regarding possible legal violations, and for purpose of clarity Executive is not prohibited from providing information voluntarily to the Securities and Exchange Commission pursuant to Section 21F of the Securities Exchange Act of 1934, as amended.
(c)    Section 409A.
(i)    Notwithstanding anything to the contrary in this Agreement, no severance pay or benefits to be paid or provided to Executive, if any, pursuant to this Agreement that, when considered together with any other severance payments or separation benefits, are considered deferred compensation under Section 409A of the Internal Revenue Code of 1986, as amended (the “Code”), and the final regulations and any guidance promulgated thereunder (“Section 409A”) (together, the “Deferred Payments”) will be paid or otherwise provided until Executive has a “separation from service” within the meaning of Section 409A.  Similarly, no severance payable to Executive, if any, pursuant to this Agreement that otherwise would be exempt from Section 409A pursuant to Treasury Regulation Section 1.409A‐1(b)(9) will be payable until Executive has a “separation from service” within the meaning of Section 409A.

(ii)    It is intended that none of the severance payments under this Agreement will constitute “Deferred Payments” but rather will be exempt from Section 409A as a payment that would fall within the “short-term deferral period” as described in Section 4(c)(iv) below or resulting from an involuntary separation from service as described in Section 4(c)(v) below.  However, any severance payments or benefits under this Agreement that would be considered Deferred Payments will be paid on, or, in the case of installments, will not commence until, the sixtieth (60th) day following Executive’s separation from service, or, if later, such time as required by Section 4(c)(iii).  Except as required by Section 4(c)(iii), any installment payments that would have been made to Executive during the sixty (60) day period immediately following Executive’s separation from service but for the preceding sentence will be paid to Executive on the sixtieth (60th) day following Executive’s separation from service and the remaining payments shall be made as provided in this Agreement.
(iii)    Notwithstanding anything to the contrary in this Agreement, if Executive is a “specified employee” within the meaning of Section 409A at the time of Executive’s termination (other than due to death), then the Deferred Payments, if any, that are payable within the first six (6) months following Executive’s separation from service, will become payable on the first payroll date that occurs on or after the date six (6) months and one (1) day following the date of Executive’s separation from service. All subsequent Deferred Payments, if any, will be payable in accordance with the payment schedule applicable to each payment or benefit.  Notwithstanding anything herein to the contrary, if Executive dies following Executive’s separation from service, but before the six (6) month anniversary of the separation from service, then any payments delayed in accordance with this paragraph will be payable in a lump sum as soon as administratively practicable after the date of Executive’s death and all other Deferred Payments will be payable in accordance with the payment schedule applicable to each payment or benefit.  Each payment and benefit payable under this Agreement is intended to constitute a separate payment under Section 1.409A-2(b)(2) of the Treasury Regulations.
(iv)    Any amount paid under this Agreement that satisfies the requirements of the “short-term deferral” rule set forth in Section 1.409A-1(b)(4) of the Treasury Regulations will not constitute Deferred Payments for purposes of clause (i) above.
(v)    Any amount paid under this Agreement that qualifies as a payment made as a result of an involuntary separation from service pursuant to Section 1.409A-1(b)(9)(iii) of the Treasury Regulations that does not exceed the Section 409A Limit (as defined below) will not constitute Deferred Payments for purposes of clause (i) above.
(vi)    The foregoing provisions are intended to comply with the requirements of Section 409A so that none of the severance payments and benefits to be provided hereunder will be subject to the additional tax imposed under Section 409A, and any ambiguities herein will be interpreted to so comply. The Company and Executive agree to work together in good faith to consider amendments to this Agreement and to take such reasonable actions which are necessary, appropriate or desirable to avoid imposition of any additional tax or income recognition before actual payment to Executive under Section 409A.

(vii)    To the extent any reimbursement or in-kind benefit provided under this Agreement is a Deferred Payment (i) the amount of expenses eligible for reimbursement, or in-kind benefits provided, during a calendar year may not affect the expenses eligible for reimbursement, or in-kind benefits to be provided, in any other taxable year; (ii) the reimbursement of an eligible expense must be made on or before the last day of the calendar year following the calendar year in which the expense was incurred; and (iii) the right to reimbursement or in-kind benefits is not subject to liquidation or exchange for another benefit.
5.    Limitation on Payments.  In the event that the severance and other benefits provided for in this Agreement or otherwise payable to Executive (i) constitute “parachute payments” within the meaning of Section 280G of the Code, and (ii) but for this Section 5, would be subject to the excise tax imposed by Section 4999 of the Code, then Executive’s benefits under Section 3 will be either:
(a)    delivered in full, or
(b)    delivered as to such lesser extent which would result in no portion of such benefits being subject to excise tax under Section 4999 of the Code,
whichever of the foregoing amounts, taking into account the applicable federal, state and local income taxes and the excise tax imposed by Section 4999, results in the receipt by Executive on an after-tax basis, of the greatest amount of benefits, notwithstanding that all or some portion of such benefits may be taxable under Section 4999 of the Code.  If a reduction in severance and other benefits constituting “parachute payments” is necessary so that benefits are delivered to a lesser extent, reduction will occur in the following order: (i) reduction of cash payments; (ii) cancellation of awards granted “contingent on a change in ownership or control” (within the meaning of Code Section 280G), (iii) cancellation of accelerated vesting of equity awards; (iv) reduction of employee benefits.  In the event that acceleration of vesting of equity award compensation is to be reduced, such acceleration of vesting will be cancelled in the reverse order of the date of grant of Executive’s equity awards.
Unless the Company and Executive otherwise agree in writing, any determination required under this Section 5 will be made in writing by the Company’s independent public accountants immediately prior to a Change of Control or such other person or entity to which the parties mutually agree (the “Accountants”), whose determination will be conclusive and binding upon Executive and the Company.  For purposes of making the calculations required by this Section 5, the Accountants may make reasonable assumptions and approximations concerning applicable taxes and may rely on reasonable, good faith interpretations concerning the application of Sections 280G and 4999 of the Code.  The Company and Executive will furnish to the Accountants such information and documents as the Accountants may reasonably request in order to make a determination under this Section.  The Company will bear all costs the Accountants may incur in connection with any calculations contemplated by this Section 5.

6.    Definition of Terms.  The following terms referred to in this Agreement will have the following meanings:
(a)    Cause.  “Cause” will mean:

(i)    Executive’s indictment, plea of nolo contendere or conviction, of any felony or of any crime involving dishonesty by Executive;

(ii)    a material breach by Executive of Executive’s duties or of a Company policy that is not cured by Executive within 30 days following written notice of same to Executive by the Company, to the extent such breach is curable; or

(iii)    a commission of any act of dishonesty, embezzlement, theft, fraud or misconduct by Executive with respect to the Company, any of which in the good faith and reasonable determination of the Board or the Committee is materially detrimental to the Company, its business or its reputation.
(b)    Change of Control.  “Change of Control” will mean the occurrence of any of the following events:
(i)    Change in Ownership of the Company.  A change in the ownership of the Company which occurs on the date that any one person, or more than one person acting as a group (“Person”), acquires ownership of the stock of the Company that, together with the stock held by such Person, constitutes more than 50% of the total voting power of the stock of the Company, except that any change in the ownership of the stock of the Company as a result of a private financing of the Company that is approved by the Board will not be considered a Change of Control; or
(ii)    Change in Effective Control of the Company.  A change in the effective control of the Company which occurs on the date that a majority of members of the Board is replaced during any twelve (12) month period by directors whose appointment or election is not endorsed by a majority of the members of the Board prior to the date of the appointment or election.  For purposes of this clause (ii), if any Person is considered to be in effective control of the Company, the acquisition of additional control of the Company by the same Person will not be considered a Change of Control; or
(iii)    Change in Ownership of a Substantial Portion of the Company’s Assets.  A change in the ownership of a substantial portion of the Company’s assets which occurs on the date that any Person acquires (or has acquired during the twelve (12) month period ending on the date of the most recent acquisition by such person or persons) assets from the Company that have a total gross fair market value equal to or more than 50% of the total gross fair market value of all of the assets of the Company immediately prior to such acquisition or acquisitions.  For purposes of this subsection 6(b)(iii), gross fair market value means the value of the assets of the Company, or the value of the assets being disposed of, determined without regard to any liabilities associated with such assets.

For these purposes, persons will be considered to be acting as a group if they are owners of a corporation that enters into a merger, consolidation, purchase or acquisition of stock, or similar business transaction with the Company.
Notwithstanding the foregoing provisions of this definition, a transaction will not be deemed a Change of Control unless the transaction qualifies as a change in control event within the meaning of Section 409A.
(c)    Disability.  “Disability” will mean that Executive is unable to engage in any substantial gainful activity by reason of any medically determinable physical or mental impairment that can be expected to result in death or can be expected to last for a continuous period of not less than twelve (12) months.  Termination resulting from Disability may only be effected after at least thirty (30) days’ written notice by the Company of its intention to terminate Executive’s employment.  In the event that Executive resumes the performance of substantially all of his or her duties hereunder before the termination of his or her employment becomes effective, the notice of intent to terminate will automatically be deemed to have been revoked.
(d)    Equity Awards.  “Equity Awards” will mean an Executive’s then unvested outstanding stock options, stock appreciation rights, restricted stock units and other Company equity compensation awards.
(e)    Good Reason.  
(1) For purposes of the severance payments and benefits set forth in Sections 3(a)(ii)(B), 3(a)(iii), 3(b)(ii)(B) and 3(b)(iii) of this Agreement, and for purposes of all Equity Awards granted to Executive on or after September 4, 2018, “Good Reason” will mean Executive’s termination of employment within ninety (90) days following the expiration of any cure period (discussed below) following the occurrence of one or more of the following, without Executive’s consent:
(i)    A material diminution in Executive’s base compensation (unless such reduction is done as part of a reduction program effective for all of the Company’s senior level executives); or
(ii)    the relocation of Executive’s primary workplace to a location more than fifty (50) miles away from Executive’s workplace in effect immediately prior to such relocation.
(2) For purposes of all other severance payments and benefits set forth in this Agreement, including all Equity Awards granted to Executive prior to September 4, 2018, “Good Reason” will mean Executive’s termination of employment within ninety (90) days following the expiration of any cure period (discussed below) following the occurrence of one or more of the following, without Executive’s consent:

(i)    A material diminution in Executive’s base compensation (unless such reduction is done as part of a reduction program effective for all of the Company’s senior level executives);
(ii)    A material reduction of Executive’s authority or responsibilities, relative to Executive’s authority or responsibilities in effect immediately prior to such reduction, or, following a Change of Control, a change in the Executive’s reporting position such that Executive no longer reports directly to the [CURRENT SUPERVISOR] of the parent corporation in a group of controlled corporations.  Any change which results in Executive’s ceasing to serve as the [CURRENT ROLE] (or equivalent) of a publicly held company (other than as the result of his or her voluntary resignation not at the request of the successor or its parent) will be deemed to constitute a material change or reduction in Executive’s authority and responsibilities constituting grounds for a Good Reason termination; or
(iii)    the relocation of Executive’s primary workplace to a location more than fifty (50) miles away from Executive’s workplace in effect immediately prior to such relocation.
In addition, in order for a voluntary termination to be considered a termination for “Good Reason” under this Agreement, Executive must provide written notice to the Company of the existence of one or more of the above conditions within ninety (90) days of its initial existence and the Company must be provided at least thirty (30) days from the notice to remedy the condition.  Notwithstanding the foregoing, a termination will not be considered a termination for “Good Reason” if (1) Executive’s conduct is such that Executive’s compensation is subject to clawback provisions under any policy or agreement of the Company, or pursuant to applicable law, statute, rule or regulation of any branch of the federal government, or (2) any of the events described in subsections (1)(i), 2(i) and 2(ii) of this Section 6(e) is caused by the intentional or reckless conduct of Executive.
(f)    Section 409A Limit.  “Section 409A Limit” will mean the lesser of two (2) times: (i) Executive’s annualized compensation based upon the annual rate of pay paid to Executive during the Executive’s taxable year preceding the Executive’s taxable year of Executive’s termination of employment as determined under, and with such adjustments as are set forth in, Treasury Regulation 1.409A-1(b)(9)(iii)(A)(1) and any Internal Revenue Service guidance issued with respect thereto; or (ii) the maximum amount that may be taken into account under a qualified plan pursuant to Section 401(a)(17) of the Code for the year in which Executive’s employment is terminated.
7.    Successors.
(a)    The Company’s Successors.  Any successor to the Company (whether direct or indirect and whether by purchase, merger, consolidation, liquidation or otherwise) to all or substantially all of the Company’s business and/or assets will assume the obligations under this Agreement and agree expressly to perform the obligations under this Agreement in the same manner and to the same extent as the Company would be required to perform such obligations in the absence of a succession.  For all purposes under this Agreement, the term “Company” will include any successor to the Company’s business and/or assets which executes and delivers the assumption 

agreement described in this Section 7 or which becomes bound by the terms of this Agreement by operation of law.
(b)    Executive’s Successors.  The terms of this Agreement and all rights of Executive hereunder will inure to the benefit of, and be enforceable by, Executive’s personal or legal representatives, executors, administrators, successors, heirs, distributees, devisees and legatees.
8.    Notice.
(a)    General.  Notices and all other communications contemplated by this Agreement will be in writing and will be deemed to have been duly given when sent electronically or personally delivered, when mailed by U.S. registered or certified mail, return receipt requested and postage prepaid, or when delivered by a private courier service such as UPS, DHL or Federal Express that has tracking capability.  In the case of Executive, notices will be sent to the e-mail address or addressed to Executive at the home address, in either case which Executive most recently communicated to the Company in writing.  In the case of the Company, electronic notices will be sent to the e-mail address of the Chief Executive Officer and the General Counsel and mailed notices will be addressed to its corporate headquarters, and all notices will be directed to the attention of its Chief Executive Officer and General Counsel.
(b)    Notice of Termination.  Any termination by the Company for Cause or by Executive for Good Reason will be communicated by a notice of termination to the other party hereto given in accordance with Section 8 of this Agreement.  Such notice will indicate the specific termination provision in this Agreement relied upon, will set forth in reasonable detail the facts and circumstances claimed to provide a basis for termination under the provision so indicated, and will specify the termination date (which will be not more than ninety (90) days after the giving of such notice and expiration of any applicable cure period).
9.    Miscellaneous Provisions.
(a)    No Duty to Mitigate.  Executive will not be required to mitigate the amount of any payment contemplated by this Agreement, nor will any such payment be reduced by any earnings that Executive may receive from any other source.
(b)    Waiver.  No provision of this Agreement will be modified, waived or discharged unless the modification, waiver or discharge is agreed to in writing and signed by Executive and by an authorized officer of the Company (other than Executive).  No waiver by either party of any breach of, or of compliance with, any condition or provision of this Agreement by the other party will be considered a waiver of any other condition or provision or of the same condition or provision at another time.
(c)    Headings.  All captions and section headings used in this Agreement are for convenient reference only and do not form a part of this Agreement.

(d)    Entire Agreement.  This Agreement constitutes the entire agreement of the parties hereto and supersedes in their entirety all prior representations, understandings, undertakings or agreements (whether oral or written and whether expressed or implied) of the parties with respect to the subject matter hereof.  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 and which specifically mentions this Agreement.
(e)    Compensation Recovery.  Notwithstanding anything in this Agreement to the contrary, Executive acknowledges and agrees that this Agreement and any compensation described herein are subject to the terms and conditions of the Company’s clawback policy (if any) as may be in effect from time to time specifically to implement Section 10D of the Securities Exchange Act of 1934, as amended, and any applicable rules or regulations promulgated thereunder (including applicable rules and regulations of any national securities exchange on which the common stock of the Company may be traded) (the “Compensation Recovery Policy”), and that applicable sections of this Agreement and any related documents shall be deemed superseded by and subject to the terms and conditions of the Compensation Recovery Policy from and after the effective date thereof.
(f)    Choice of Law.  The validity, interpretation, construction and performance of this Agreement will be governed by the laws of the Commonwealth of Virginia (with the exception of its conflict of laws provisions).  Any claims or legal actions by one party against the other arising out of the relationship between the parties contemplated herein (whether or not arising under this Agreement) will be commenced or maintained in any state or federal court located in the jurisdiction where Executive resides, and Executive and the Company hereby submit to the jurisdiction and venue of any such court.
(g)    Severability.  The invalidity or unenforceability of any provision or provisions of this Agreement will not affect the validity or enforceability of any other provision hereof, which will remain in full force and effect.
(h)    Withholding.  All payments made pursuant to this Agreement will be subject to withholding of applicable income, employment and other taxes.
(i)    Counterparts.  This Agreement may be executed in counterparts, each of which will be deemed an original, but all of which together will constitute one and the same instrument.
[Signature Page to Follow]

IN WITNESS WHEREOF, each of the parties has executed this Agreement, in the case of the Company by its duly authorized officer, as of the day and year set forth below.
	
					
	COMPANY
	 
	 
	COMSCORE, INC.

	 
	 
	 
	 
	 

	 
	 
	 
	By:
	 

	 
	 
	 
	 
	 

	 
	 
	 
	Title:
	 

	 
	 
	 
	 
	 

	 
	 
	 
	Date:
	 

	 
	 
	 
	 
	 

	 
	 
	 
	 
	 

	EXECUTIVE
	 
	 
	By:
	 

	 
	 
	 
	 
	 

	 
	 
	 
	Title:
	 

	 
	 
	 
	 
	 

	 
	 
	 
	Date:EX-10.1

 Exhibit 10.1 
  

					
	

	  	EMPLOYMENT AGREEMENT	  	

 This Employment Agreement (the “Agreement”), effective as of September 10,
2018 (the “Effective Date”) is entered into by and between Achillion Pharmaceuticals, Inc., a Delaware corporation with its principal place of business at 300 George Street, New Haven, CT 06511-6624 (the “Company”), and Paul
Firuta (the “Executive”). 
 WHEREAS, the Company desires to employ the Executive and the Executive desires to be employed by the
Company pursuant to the terms and conditions set forth in this Agreement. 
 NOW, THEREFORE, in consideration of the employment of the
Executive, and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the Company and the Executive agree as follows: 

1. Term of Employment. The Company hereby agrees to employ the Executive, and the Executive hereby accepts employment with the Company,
upon the terms set forth in this Agreement, for the period commencing on the Effective Date and ending on December 31, 2018, unless earlier terminated pursuant to the provisions of Section 4 or extended pursuant to the provisions herein
(such period, the “Employment Period”). On January 1, 2019, and on each yearly anniversary of such date thereafter, this Agreement shall automatically renew for successive one-year periods
unless, at least six (6) months prior to the applicable expiration date, either party has notified the other party that the Agreement shall not so renew. 

2. Title; Capacity. During the Employment Period, the Executive shall serve as the Company’s Executive Vice President and Chief
Operating Officer. The Executive shall be based at the Company’s office in Blue Bell, Pennsylvania, or such place or places in the continental United States as the Company’s Chief Executive Officer (“CEO”) shall determine. The
Executive shall be subject to the supervision of, and shall have such authority as is delegated to the Executive by, the CEO or the Board of Directors of the Company (the “Board”). The Executive hereby accepts such employment and agrees to
undertake the duties and responsibilities inherent in such position and such other duties and responsibilities as the CEO or the Board shall from time to time reasonably assign to the Executive. The Executive agrees to devote his entire business
time, attention and energies to the business and interests of the Company during the Employment Period. Notwithstanding the foregoing, the Executive may serve on a board of directors of a public or private company following the prior written
approval of the CEO and the Board, provided that any such board service does not, in the judgment of the CEO and/or the Board, interfere in any material respect with the performance of the Executive’s duties for the Company, create a conflict
of interest, or otherwise violate this Agreement or any other written agreement between the Company and the Executive, including the Restrictive Covenant Agreement (as defined below). The Executive agrees to abide by the rules, regulations,
instructions, personnel practices and policies of the Company and any changes therein which may be adopted from time to time by the Company. The Executive will be eligible to participate in the Company’s performance review process. 

 3. Compensation and Benefits. 

3.1 Salary. The Company shall pay the Executive, in periodic installments in accordance with the Company’s customary payroll
practices, a base salary at the biweekly rate of $16,153.85 (which if annualized equals $420,000) (the “Base Salary”). Such Base Salary may be increased in the sole discretion of the Board. 

3.2 Performance Bonus. Following the end of each fiscal year and subject to the approval of the Board, the Executive shall be eligible
to receive a discretionary retention and performance bonus (the “Performance Bonus”). The target amount of such Performance Bonus will be 40% of the Executive’s Base Salary for the applicable fiscal year (the “Target
Bonus”), based on the Company’s achievement of its performance goals for the applicable fiscal year and the Executive’s achievement of his performance goals for the applicable fiscal year, both as determined by the Board in its sole
discretion. The Executive’s individual performance goals for each fiscal year will be established by the CEO on an annual basis in consultation with the Executive. The Executive must be an active employee of the Company on the date any
Performance Bonus is distributed in order to be eligible for and to earn any bonus award, as it also serves as an incentive to remain employed by the Company. 

3.3 Equity Award. Subject to approval by the Company’s Compensation Committee, on or about the Effective Date, the Executive shall
be granted an option to purchase 400,000 shares of Common Stock, $0.001 par value (“Common Stock”) of the Company, such option to (a) have an exercise price per share equal to the closing price per share of the Company’s Common
Stock on the NASDAQ Global Select Market on the date of grant, (b) vest and become exercisable, subject to the Executive’s continued service on each applicable vesting date, at a rate of 25% of the total shares underlying the option on the
first anniversary of the date of grant and as to an additional 6.25% of the total shares underlying the grant at the end of each successive three month period thereafter, and (c) be subject to the terms and conditions of a stock option
agreement to be provided by the Company. The Executive may be eligible to receive additional stock options or stock based awards from time to time, provided that any such stock options or stock based awards will be made, if at all, solely at the
discretion of the Board and upon such terms and conditions as the Board shall determine. 
 3.4 Fringe Benefits. The Executive shall
be entitled to participate in all benefit programs that the Company establishes and makes available to its Executives, to the extent that the Executive is eligible under the plan documents governing those programs. Benefits are subject to change at
any time in the Company’s sole discretion. The Executive shall be entitled to 20 days of paid time off (“PTO”) per calendar year, until and unless the Executive has been employed by the Company for at least five years, in which event
the Executive shall be entitled to 25 days of PTO each calendar year. PTO shall be subject to the accrual, use, and carryover provisions set forth in the Company’s vacation policy. 

3.5 Reimbursement of Expenses. The Company shall reimburse the Executive for all reasonable travel, entertainment and other expenses
incurred or paid by the Executive in connection with, or related to, the performance of his duties and responsibilities under this Agreement, in accordance with the policies and procedures, and subject to the limitations, adopted by the Company from
time to time. 

 3.6 Withholding. All compensation payable to the Executive shall be subject to
applicable taxes and withholding. 
 4. Termination of Employment Period. This Agreement and the employment of the Executive shall
terminate upon the occurrence of any of the following: 
 4.1 Expiration of the Employment Period by notice of
non-renewal in accordance with Section 1; 
 4.2 At the election of the Company for Cause (as
defined below), immediately upon written notice by the Company to the Executive, which notice shall identify the Cause upon which the termination is based; 

4.3 At the election of the Executive for Good Reason (as defined below), pursuant to the provisions set forth below; 

4.4 Upon the death or Disability (as defined below) of the Executive; 

4.5 At the election of the Company without Cause, upon not less than fifteen (15) days’ prior written notice of termination (the
“Notice Period”), provided, however, that the Company may, in its sole discretion, in lieu of all or part of the Notice Period, pay the Executive an amount equal to the Base Salary that would otherwise have been payable to the Executive
had the Executive remained employed for the duration of the Notice Period (in which case the Executive’s termination will become effective on the date set forth in the Company’s written notice of termination (the “Early Termination
Date”), and the Executive will be paid an amount equal to the Base Salary the Executive would have received had the Executive remained employed by the Company between the Early Termination Date and the end of the Notice Period (the “Early
Termination Payment”), with the Early Termination Payment to be made no later than the 30th day following the end of the Notice Period); or 

4.6 At the election of the Executive without Good Reason, upon not less than fifteen (15) days’ prior written notice of termination.

 5. Effect of Termination. 

5.1 Termination by the Company Without Cause or by the Executive for Good Reason Within 12 Months Following a Change in Control. If,
within 12 months following a Change in Control Date, either the Executive’s employment is terminated by the Company without Cause (other than due to his Disability or death) or the Executive resigns for Good Reason (a “Change in Control
Termination”), then, following the Executive’s date of termination (the “Date of Termination”) and subject to the conditions of Section 6 and in accordance with the timing and payment terms set forth in
Section 6: 
 (a) the Company shall, for a period of 12 months beginning on the Payment Commencement Date, continue to pay to the
Executive, in accordance with the Company’s customary payroll practices, his then current Base Salary as severance; 

 (b) if the Executive is eligible for and timely elects to continue receiving group medical
and/or dental insurance under the continuation coverage rules known as COBRA, the Company will continue to pay the share of the premium for such coverage that it pays for active and similarly-situated employees who receive the same type of coverage
(single, family, or other) until the earlier of (x) the end of the 12th month after the Date of Termination, and (y) the date the covered individual’s COBRA continuation coverage
expires, unless, as a result of a change in legal requirements, the Company’s provision of payments for COBRA will violate the nondiscrimination requirements of applicable law, in which case this benefit will not apply; 

(c) the Executive will receive, in a lump sum on the Payment Commencement Date, an amount equal to 100% of the Target Bonus for the fiscal year
in which his Date of Termination occurs; 
 (d) each outstanding option to purchase shares of Common Stock of the Company held by the
Executive shall become immediately exercisable in full; and 
 (e) each restricted stock or stock unit award held by the Executive shall be
deemed to be fully vested and free from repurchase and forfeiture provisions, and, to the extent applicable, will no longer be subject to a right of repurchase by or forfeiture to the Company; provided that the vesting will not accelerate the
distribution of shares underlying equity awards if such acceleration of distribution would trigger taxation under Section 409A of the Code. 

5.2 Termination by the Company Without Cause or by the Executive for Good Reason Prior to, or More than 12 Months Following, a Change in
Control. If, prior to a Change in Control Date or more than 12 months following a Change in Control Date, either the Executive’s employment is terminated by the Company without Cause (other than for Disability or death) or the Executive
resigns for Good Reason (a “Non-Change in Control Termination”), then, following the Date of Termination and subject to the conditions of Section 6 and in accordance with the payment terms set
forth in Section 6: 
 (a) the Company shall, for a period of 12 months beginning on the Payment Commencement Date, continue to pay to
the Executive, in accordance with the Company’s customary payroll practices, his then current Base Salary as severance; 
 (b) if the
Executive is eligible for and timely elects to continue receiving group medical and/or dental insurance under the continuation coverage rules known as COBRA, the Company will continue to pay the share of the premium for such coverage that it pays
for active and similarly-situated employees who receive the same type of coverage (single, family, or other) until the earlier of (x) the end of the 12th month after the Date of Termination,
and (y) the date the covered individual’s COBRA continuation coverage expires, unless, as a result of a change in legal requirements, the Company’s provision of payments for COBRA will violate the nondiscrimination requirements of
applicable law, in which case this benefit will not apply; and 
 (c) the Executive will receive a
pro-rated Target Bonus for the fiscal year in which his Date of Termination occurs, calculated by multiplying the Target Bonus for such year by a fraction, the numerator of which is the number of days the
Executive was employed by the Company in such year and the denominator of which is 365, paid in a lump sum on the Payment Commencement Date. 

 5.3 Termination by the Company for Cause, by the Executive Without Good Reason, or Due to
Death or Disability. If the Company terminates the Executive’s employment for Cause or the Executive resigns without Good Reason, or if the Executive’s employment terminates due to his death or Disability, then the Company’s
obligations under this Agreement shall immediately cease and the Executive shall be entitled to only the Base Salary that has accrued and to which the Executive is entitled as of the Date of Termination. The Executive shall not be entitled to any
other compensation or consideration, including any Performance Bonus not yet paid, that the Executive may have received had the Employment Period not ended. For the avoidance of doubt, termination of this Agreement by notice of non-renewal by the Executive will be treated as a termination by the Executive without Good Reason. 
 5.4
Termination Prior to or More Than 12 Months Following a Change in Control Due to Expiration of the Employment Period by Notice of Non-Renewal. If (a) this Agreement and the employment of the
Executive terminate due to expiration of the Employment Period by notice of non-renewal by the Company, and (b) the Date of Termination occurs prior to a Change in Control Date or more than 12 months following a Change in Control Date,
and provided that the Executive would otherwise have been willing and able to continue his employment under the terms of this Agreement but for the Company’s decision not to renew, then such termination will be treated as a Non-Change in Control Termination and the provisions of Section 5.2 shall apply. 
 5.5 Termination
Within 12 Months Following a Change in Control Due to Expiration of the Employment Period by Notice of Non-Renewal. If (a) this Agreement and the employment of the Executive terminate due to
expiration of the Employment Period by notice of non-renewal by the Company, and (b) the Date of Termination occurs within 12 months following a Change in Control Date, and provided that the Executive
would otherwise have been willing and able to continue his employment under the terms of this Agreement but for the Company’s decision not to renew, then such termination will be treated as a Change in Control Termination and the provisions of
Section 5.1 shall apply. 
 6. Release. The obligation of the Company to make the payments and provide the benefits to the
Executive under Section 5.1, 5.2, 5.4, or 5.5 is conditioned upon the Executive signing and delivering to the Company a severance and release of claims agreement in a form to be provided by the Company (which will include, at a minimum, a
release of all releasable claims and non-disparagement and cooperation obligations) (the “Executive Release”), which Executive Release must become irrevocable within sixty (60) days following
the Date of Termination (or such shorter period as the Company may provide, which shall not be less than 30 days following the Date of Termination). The Company shall commence or make, as applicable, the payments under Section 5.1, 5.2, 5.4, or
5.5 on the first payroll period following the date the Executive Release becomes irrevocable (such date, the “Payment Commencement Date”); provided, however, that if the 60th day following the Date of Termination falls in the calendar year
following the year of the Executive’s termination of employment, the Payment Commencement Date shall be the first payroll period of such later calendar year; and provided further that the payment of any amounts pursuant to Section 5.1,
5.2, 5.4, or 5.5 shall be subject to the terms and conditions set forth in Exhibit A. 

 7. Termination Obligations. 

7.1 Return of Company’s Property. The Executive hereby acknowledges and agrees that all personal property, including, without
limitation, all books, manuals, records, reports, notes, contracts, lists, blueprints and other documents or materials, or copies thereof, and equipment furnished to or prepared by the Executive in the course of or incident to the Executive’s
employment, belong to the Company and shall be promptly returned to the Company upon termination of the Executive’s employment or earlier request by the Company. Following termination, the Executive will not retain any written or other tangible
material containing any proprietary information or confidential information of the Company. 
 7.2 Cooperation. Following any
separation from employment or notice thereof, the Executive shall fully cooperate with the Company in all matters relating to the winding up of pending work on behalf of the Company and the orderly transfer of work to other executives of the
Company. The Executive shall also cooperate in the defense of any action brought by any third party against the Company that relates in any way to the Executive’s acts or omissions while employed by the Company. 

8. Section 280G. 

8.1 Notwithstanding any other provision of this Agreement, except as set forth in Section 8.2, in the event that the Company undergoes a
“Change in Ownership or Control” (as defined below), the Company shall not be obligated to provide to the Executive a portion of any “Contingent Compensation Payments” (as defined below) that the Executive would otherwise be
entitled to receive to the extent necessary to eliminate any “excess parachute payments” (as defined in Code Section 280G(b)(l)) for the Executive. For purposes of this Section 8, the Contingent Compensation Payments so
eliminated shall be referred to as the “Eliminated Payments” and the aggregate amount (determined in accordance with Treasury Regulation Section 1.280G-1,
Q/A-30 or any successor provision) of the Contingent Compensation Payments so eliminated shall be referred to as the “Eliminated Amount.” 

8.2 Notwithstanding the provisions of 8.1, no such reduction in Contingent Compensation Payments shall be made if (i) the Eliminated
Amount (computed without regard to this sentence) exceeds (ii) 110% of the aggregate present value (determined in accordance with Treasury Regulation Section 1.280G-1,
Q/A-31 and Q/A-32 or any successor provisions) of the amount of any additional taxes that would be incurred by the Executive if the Eliminated Payments (determined
without regard to this sentence) were paid to him or her (including, state and federal income taxes on the Eliminated Payments, the excise tax imposed by Section 4999 of the Code payable with respect to all of the Contingent Compensation
Payments in excess of the Executive’s “base amount” (as defined in Section 280G(b)(3) of the Code), and any withholding taxes). The override of such reduction in Contingent Compensation Payments pursuant to this Section 8.2
shall be referred to as a “Section 8.2 Override.” For purpose of this paragraph, if any federal or state income taxes would be attributable to the receipt of any Eliminated Payment, the amount of such taxes shall be computed by
multiplying the amount of the Eliminated Payment by the maximum combined federal and state income tax rate provided by law. 

 8.3 For purposes of this Section 8 the following terms shall have the following
respective meanings: 
 (i) “Change in Ownership or Control” shall mean a change in the ownership or effective control of the
Company or in the ownership of a substantial portion of the assets of the Company determined in accordance with Section 280G(b)(2) of the Code. 

(ii) “Contingent Compensation Payment” shall mean any payment (or benefit) in the nature of compensation that is made or made
available (under this Agreement or otherwise) to a “disqualified individual” (as defined in Section 280G(c) of the Code) and that is contingent (within the meaning of Section 280G(b)(2)(A)(i) of the Code) on a Change in Ownership
or Control of the Company. 
 8.4 Any payments or other benefits otherwise due to the Executive following a Change in Ownership or Control
that could reasonably be characterized (as determined by the Company) as Contingent Compensation Payments (the “Potential Payments”) shall not be made until the dates provided for in this Section 8.4. Within 30 days after each date on
which the Executive first becomes entitled to receive (whether or not then due) a Contingent Compensation Payment relating to such Change in Ownership or Control, the Company shall determine and notify the Executive (with reasonable detail regarding
the basis for its determinations) (i) which Potential Payments constitute Contingent Compensation Payments, (ii) the Eliminated Amount and (iii) whether the Section 8.2 Override is applicable. Within 30 days after delivery of
such notice to the Executive, the Executive shall deliver a response to the Company (the “Executive Response”) stating either (A) that he or she agrees with the Company’s determination pursuant to the preceding sentence, or
(B) that he or she disagrees with such determination, in which case he or she shall set forth (i) which Potential Payments should be characterized as Contingent Compensation Payments, (ii) the Eliminated Amount, and (iii) whether
the Section 8.2 Override is applicable. In the event that the Executive fails to deliver an Executive Response on or before the required date, the Company’s initial determination shall be final. If and to the extent that any Contingent
Compensation Payments are required to be treated as Eliminated Payments pursuant to this Section 8, then the payments shall be reduced or eliminated, as determined by the Company, in the following order: (i) any cash payments,
(ii) any taxable benefits, (iii) any nontaxable benefits, and (iv) any vesting of equity awards in each case in reverse order beginning with payments or benefits that are to be paid the farthest in time from the date that triggers the
applicability of the excise tax, to the extent necessary to maximize the Eliminated Payments. If the Executive states in the Executive Response that he or she agrees with the Company’s determination, the Company shall make the Potential
Payments to the Executive within three business days following delivery to the Company of the Executive Response (except for any Potential Payments which are not due to be made until after such date, which Potential Payments shall be made on the
date on which they are due). If the Executive states in the Executive Response that he disagrees with the Company’s determination, then, for a period of 60 days following delivery of the Executive Response, the Executive and the Company shall
use good faith efforts to resolve such dispute. If such dispute is not resolved within such 60-day period, such dispute shall be settled exclusively by arbitration in the State of Connecticut, in 

 accordance with the rules of the American Arbitration Association then in effect. Judgment may be entered on
the arbitrator’s award in any court having jurisdiction. The Company shall, within three business days following delivery to the Company of the Executive Response, make to the Executive those Potential Payments as to which there is no dispute
between the Company and the Executive regarding whether they should be made (except for any such Potential Payments which are not due to be made until after such date, which Potential Payments shall be made on the date on which they are due). The
balance of the Potential Payments shall be made within three business days following the resolution of such dispute. Subject to the limitations contained in Sections 8.1 and 8.2 hereof, the amount of any payments to be made to the Executive
following the resolution of such dispute shall be increased by amount of the accrued interest thereon computed at the prime rate announced from time to time by The Wall Street Journal, compounded monthly from the date that such payments originally
were due. 
 8.5 The provisions of this Section 8 are intended to apply to any and all payments or benefits available to the Executive
under this Agreement or any other agreement or plan of the Company under which the Executive receives Contingent Compensation Payments. 
 9.
Restrictive Covenant Agreement. As a condition of the Executive’s employment, the Executive shall execute the Nondisclosure, Assignment of Inventions and Post-Employment Covenants Agreement (the “Restrictive Covenant
Agreement”) provided to him contemporaneously with this Agreement. 
 10. Absence of Restrictions. The Executive represents and
warrants that he is not bound by any employment contracts, restrictive covenants or other restrictions that prevent him from entering into employment with, or carrying out his responsibilities for, the Company, or which are in any way inconsistent
with any of the terms of this Agreement. 
 11. Definitions. For purposes of this Agreement, the following terms shall have the
following meanings: 
 11.1 “Cause” shall mean (a) a good faith finding by the Company that (i) the Executive has failed
to substantially perform his reasonably assigned duties for the Company, or (ii) the Executive has engaged in dishonesty, gross negligence or misconduct, which dishonesty, gross negligence or misconduct has had a material adverse effect on the
Company, (b) the conviction of the Executive of, or the entry of a plea of guilty or nolo contendere by the Executive to, any felony, (c) breach by the Executive of any material provision of this Agreement or other agreement with the
Company (which breach is not cured within 30 days following written notice by the Company thereof), or (d) breach by the Executive of the Restrictive Covenant Agreement. 

11.2 “Change in Control” shall mean the sale of all or substantially all of the capital stock (other than the sale of capital stock
to one or more venture capitalists or other institutional investors pursuant to an equity financing (including a debt financing that is convertible into equity) of the Company approved by a majority of the Board), assets or business of the Company,
by merger, consolidation, sale of assets or otherwise (other than a merger or consolidation in which all or substantially all of the individuals and entities who were beneficial owners of the Common Stock immediately prior to such transaction
beneficially own, directly or 

 indirectly, more than 50% of the outstanding securities entitled to vote generally in the election of
directors of the resulting, surviving or acquiring corporation in such transaction), provided that, where applied to compensation subject to Section 409A, any acceleration of or change in payment shall only apply (if required by
Section 409A) if the corporate transaction is also a change in control event described in Treasury Regulation 1.409A-3(i)(5). 

11.3 “Change in Control Date” means the first date during the Employment Period on which a Change in Control occurs. Anything in this
Agreement to the contrary notwithstanding, if (a) a Change in Control occurs, (b) the Executive’s employment with the Company is terminated (i) without Cause (other than due to the Executive’s death or Disability), or
(ii) due to expiration of the Employment Period by notice of non-renewal by the Company, within 60 days prior to the date on which the Change in Control occurs, and (c) it is reasonably demonstrated
by the Executive that such termination of employment (i) was at the request of a third party who has taken steps reasonably calculated to effect a Change in Control or (ii) otherwise arose in connection with or in anticipation of a Change
in Control, then the “Change in Control Date” shall mean the date immediately prior to the date of such termination of employment. Where applicable, the Company shall take such steps as are reasonably practicable as of the termination date
to preserve the availability of equity compensation that may expire (other than by reaching the full term of an option) during the 60 day period (by vesting and freezing the equity) pending the occurrence of the Change in Control. 

11.4 “Disability” shall mean the inability of the Executive, due to a physical or mental disability, for a period of 90 days, whether
or not consecutive, during any 360-day period to perform the services contemplated under this Agreement, with or without reasonable accommodation, as that term is defined under state or federal law. A
determination of disability shall be made by a physician satisfactory to both the Executive and the Company, provided that if the Executive and the Company do not agree on a physician, the Executive and the Company shall each select a physician and
these two together shall select a third physician, whose determination as to disability shall be binding on all parties. 
 11.5 “Good
Reason” shall mean the occurrence, without the Executive’s prior written consent, of any of the following events: (i) a material diminution of the Executive’s base compensation; (ii) a requirement that the Executive’s
principal place of providing services to the Company change by more than 50 miles, other than in a direction that reduces the Executive’s daily commuting distance; (iii) any material breach by the Company or any successor thereto of a
material provision of this Agreement; or (iv) a material diminution in the Executive’s authority, duties, or responsibilities, provided, however, and for the avoidance of doubt, that Good Reason shall not exist if the Executive no longer
holds the same title or functional role within an entity resulting from a Change in Control, so long as the Executive’s responsibilities are not substantially diminished. Notwithstanding the occurrence of any of the foregoing events or
circumstances, a resignation shall not be deemed to constitute resignation for Good Reason unless (x) the Executive gives the Company a written notice of the purported Good Reason (no more than 90 days after the initial existence of such event
or circumstance), (y) such event or circumstance has not been fully corrected (and the Executive has not been reasonably compensated for any losses or damages resulting therefrom) within 30 days following the Company’s receipt of such notice,
and (z) if the Company does not correct, the Executive ends his employment not more than 30 days following the period to correct in (y). 

 12. Miscellaneous. 

12.1 Entire Agreement; Modification. This Agreement constitutes the entire understanding and agreement between the parties hereto with
regard to the subject matter hereof and supersedes all prior understandings and agreements, whether written or oral. The Executive is not relying on any representations other than those set forth in this Agreement. 

12.2 Notices. Any notice delivered under this Agreement shall be deemed duly delivered 3 business days after it is sent by registered or
certified mail, return receipt requested, postage prepaid, or one business day after it is sent for next-business day delivery via a reputable nationwide overnight courier service, to the Company at its principal headquarters and to the Executive at
the address most recently shown on the personnel records of the Company. Either party may change the address to which notices are to be delivered by giving notice of such change to the other party in the manner set forth in this Section 12.2.

 12.3 Pronouns. Whenever the context may require, any pronouns used in this Agreement shall include the corresponding masculine,
feminine or neuter forms, and the singular forms of nouns and pronouns shall include the plural, and vice versa. 
 12.4 Amendment.
This Agreement may be amended or modified only by a written instrument executed by both the Company and the Executive and approved by the Board. 

12.5 Governing Law. This Agreement shall be governed by and construed in accordance with the laws of the State of Connecticut (without
reference to the conflicts of laws provisions thereof). Any action, suit or other legal proceeding arising under or relating to any provision of this Agreement shall be commenced only in a court of the State of Connecticut (or, if appropriate, a
federal court located within Connecticut), and the Company and the Executive each consents to the jurisdiction of such a court. The Company and the Executive each hereby irrevocably waives any right to a trial by jury in any action, suit or other
legal proceeding arising under or relating to any provision of this Agreement. 
 12.6 Successors and Assigns. This Agreement shall be
binding upon and inure to the benefit of both parties and their respective successors and assigns, including any corporation with which, or into which, the Company may be merged or which may succeed to the Company’s assets or business,
provided, however, that the obligations of the Executive are personal and shall not be assigned by him. 
 12.7 Waivers. No delay or
omission by the Company in exercising any right under this Agreement shall operate as a waiver of that or any other right. A waiver or consent given by the Company on any one occasion shall be effective only in that instance and shall not be
construed as a bar to or waiver of any right on any other occasion. 
 12.8 Captions. The captions of the sections of this Agreement
are for convenience of reference only and in no way define, limit or affect the scope or substance of any section of this Agreement. 

 12.9 Severability. In case any provision of this Agreement shall be invalid, illegal
or otherwise unenforceable, the validity, legality and enforceability of the remaining provisions shall in no way be affected or impaired thereby. 

12.10 Executive’s Acknowledgments. The Executive acknowledges that he: (i) has read this Agreement; (ii) has been
represented in the preparation, negotiation, and execution of this Agreement by legal counsel of the Executive’s own choice or has voluntarily declined to seek such counsel; (iii) understands the terms and consequences of this Agreement;
(iv) is fully aware of the legal and binding effect of this Agreement; and (v) understands that the law firm of Wilmer Cutler Pickering Hale and Dorr LLP is acting as counsel to the Company in connection with the transactions contemplated
by the Agreement, and is not acting as counsel for the Executive. 
 [Remainder of page is intentionally left blank] 

 IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of the dates set
forth below. 
  

							
	ACHILLION PHARMACEUTICALS, INC.	  		  	
				
	By:	  	 /s/ Joseph Truitt
	  		  	Date: 8/5/18
		  	Name: Joseph Truitt	  		  	
		  	Title: Chief Executive Officer	  		  	
			
	EXECUTIVE:	  		  	
			
	 /s/ Paul E. Firuta
	  		  	Date: 7/26/2018
	Paul Firuta	  		  	

 Exhibit A 

Section 409A 
 The intent of the
parties is that payments and benefits under this Agreement comply with, or be exempt from, Internal Revenue Code Section 409A and the regulations and guidance promulgated thereunder (collectively “Code Section 409A”) and this
Agreement shall be interpreted consistently therewith. With regard to any provision herein that provides for reimbursement of costs and expenses or in-kind benefits, except as permitted by Code
Section 409A, (i) the right to reimbursement or in-kind benefits shall not be subject to liquidation or exchange for another benefit, (ii) the amount of expenses eligible for reimbursement, or in-kind benefits, provided during any taxable year shall not affect the expenses eligible for reimbursement, or in-kind benefits to be provided, in any other taxable year,
provided that this clause (ii) shall not be violated with regard to expenses reimbursed under any arrangement covered by Section 105(a) of the Code solely because such expenses are subject to a limit related to the period the arrangement
is in effect, and (iii) such payments shall be made on or before the last day of your taxable year following the taxable year in which the expense occurred, provided that any tax gross-ups may be
reimbursed by the end of the calendar year following the calendar year in which such taxes are remitted to the taxing authorities. For purposes of Code Section 409A, each payment hereunder shall be treated as a separate payment and
Executive’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. In no event may Executive, directly or indirectly, designate the calendar year
of any payment to be made under this Agreement that is considered nonqualified deferred compensation. Termination of employment as used herein shall mean separation from service within the meaning of Code Section 409A. Notwithstanding anything
in this Agreement to the contrary, to the extent required by Section 409A of the Code, if Executive is considered a “specified employee” for purposes of Section 409A of the Code and if payment of any amounts under this Agreement
is required to be delayed for a period of six months after separation from service pursuant to Section 409A of the Code, payments of such amounts shall be delayed as required by Section 409A of the Code, and the accumulated amounts shall
be paid in a lump sum payment within ten days after the end of the six-month period. If Executive dies during the postponement period prior to the payment of benefits, the amounts withheld on account of
Section 409A of the Code shall be paid to the personal representative of the Executive’s estate within 60 days after the date of Executive’s death. The Company is not making any representation or warranty to Executive with respect to
the treatment of this Agreement under Code Section 409A and shall have no liability to Executive or any other person with respect to payments or benefits under this Agreement should any payments or benefits under this Agreement be determined to
constitute nonqualified deferred compensation subject to Code Section 409A but not satisfying the conditions of such section.

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