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Exhibit 10.41  

 
 

SEPRACOR INC.    
    
    Executive Retention Agreement    
    

        THIS EXECUTIVE RETENTION AGREEMENT by and between Sepracor Inc., a Delaware corporation (the "Company"), and Timothy J. Barberich (the "Executive")
is made as of February 1, 2002 (the "Effective Date"). 

        WHEREAS,
the Company recognizes that, as is the case with many publicly-held corporations, the possibility of a change in control of the Company exists and that such
possibility, and the uncertainty and questions which it may raise among key personnel, may result in the departure or distraction of key personnel to the detriment of the Company and its stockholders,
and 

        WHEREAS,
the Board of Directors of the Company (the "Board") has determined that appropriate steps should be taken to reinforce and encourage the continued employment and dedication of
the Company's key personnel without distraction from the possibility of a change in control of the Company and related events and circumstances. 

        NOW,
THEREFORE, as an inducement for and in consideration of the Executive remaining in its employ, the Company agrees that the Executive shall receive the severance benefits set forth
in this Agreement (including a certain "gross up" payment originally authorized by the Board on February 25, 1999 and set forth in Section 4.3 of this Agreement) upon the occurrence of a
Change in Control (as defined in Section 1.1). 

        1.    Key Definitions.    As used herein, the following terms shall have the following respective meanings: 

        1.1    "Change in Control"    means an event or occurrence set forth in any one or more of subsections
(a) through (d) below (including an event or occurrence that constitutes a Change in Control under one of such subsections but is specifically exempted from another such subsection): 

        (a)   the
acquisition by an individual, entity or group (within the meaning of Section 13(d)(3) or 14(d)(2) of the Securities Exchange Act of 1934, as amended (the
"Exchange Act")) (a "Person") of beneficial ownership of any capital stock of the Company if, after such acquisition, such Person beneficially owns (within the meaning of Rule 13d-3
promulgated under the Exchange Act) 30% or more of either (x) the then-outstanding shares of common stock of the Company (the "Outstanding Company Common Stock") or (y) the
combined voting power of the then-outstanding securities of the Company entitled to vote generally in the election of directors (the "Outstanding Company Voting Securities");  provided, however, that for
purposes of this subsection (a), the following acquisitions shall not constitute a Change in Control: (i) any
acquisition directly from the Company (excluding an acquisition pursuant to the exercise, conversion or exchange of any security exercisable for, convertible into or exchangeable for common stock or
voting securities of the Company, unless the Person exercising, converting or exchanging such security acquired such security directly from the Company or an underwriter or agent of the Company),
(ii) any acquisition by the Company, (iii) any acquisition by any employee benefit plan (or related trust) sponsored or maintained by the Company or any corporation controlled by the
Company, or (iv) any acquisition by any corporation pursuant to a transaction which complies with clauses (i) and (ii) of subsection (c) of this Section 1.1; or 

        (b)   such
time as the Continuing Directors (as defined below) do not constitute a majority of the Board (or, if applicable, the Board of Directors of a successor corporation
to the Company), where the term "Continuing Director" means at any date a member of the Board (i) who was a member of the Board on the date of the execution of this Agreement or (ii) who
was nominated or elected subsequent to such date by at least a majority of the directors who were Continuing Directors at the time of such nomination or election or whose 

 

election
to the Board was recommended or endorsed by at least a majority of the directors who were Continuing Directors at the time of such nomination or election;
provided, however, that there shall be excluded from this clause (ii) any individual whose initial assumption of office occurred as a
result of an actual or threatened election contest with respect to the election or removal of directors or other actual or threatened solicitation of proxies or consents, by or on behalf of a person
other than the Board; or 

        (c)   the
consummation of a merger, consolidation, reorganization, recapitalization or statutory share exchange involving the Company or a sale or other disposition of all or
substantially all of the assets of the Company in one or a series of transactions (a "Business Combination"), unless, immediately following such Business Combination, each of the following two
conditions is satisfied: (i) the beneficial
owners of all or substantially all of the Outstanding Company Common Stock and Outstanding Company Voting Securities immediately prior to such Business Combination beneficially own, directly or
indirectly, more than 50% of the then-outstanding shares of common stock and the combined voting power of the then-outstanding securities entitled to vote generally in the
election of directors, respectively, of the resulting or acquiring corporation in such Business Combination (which shall include, without limitation, a corporation which as a result of such
transaction owns the Company or substantially all of the Company's assets either directly or through one or more subsidiaries) (such resulting or acquiring corporation is referred to herein as the
"Acquiring Corporation") in substantially the same proportions as their ownership, immediately prior to such Business Combination, of the Outstanding Company Common Stock and Outstanding Company
Voting Securities, respectively; and (ii) no Person (excluding the Acquiring Corporation or any employee benefit plan (or related trust) maintained or sponsored by the Company or by the
Acquiring Corporation) beneficially owns, directly or indirectly, 30% or more of the then outstanding shares of common stock of the Acquiring Corporation, or of the combined voting power of the
then-outstanding securities of such corporation entitled to vote generally in the election of directors (except to the extent that such ownership existed prior to the Business
Combination); or 

        (d)   approval
by the stockholders of the Company of a complete liquidation or dissolution of the Company. 

        1.2    "Change in Control Date"    means the first date during the Term (as defined in Section 2) 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
prior to the date on which the Change in Control occurs, and (c) either (i) such termination of employment (x) was at the request of a third party who has taken steps reasonably
calculated to effect a Change in Control or (y) otherwise arose in connection with or in anticipation of a Change in Control, or (ii) such termination of employment occurs following the
execution of a definitive agreement for such Change in Control, then for all purposes of this Agreement the "Change in Control Date" shall mean the date immediately prior to the date of such
termination of employment. 

        2.    Term of Agreement.    This Agreement, and all rights and obligations of the parties hereunder, shall take effect
upon the Effective Date and shall expire upon the first to occur of (a) the expiration of the Term (as defined below) if a Change in Control has not occurred during the Term, (b) the
termination of the Executive's employment with the Company prior to the Change in Control Date, or (c) if a Change in Control has occurred during the Term, the fulfillment by the Company of all
of its obligations under Sections 4 and 5.2 and 5.3. "Term" shall mean the period commencing as of the Effective Date and continuing in effect through March 31, 2007;  provided, however, that
commencing on April 1, 2005 and each April 1 thereafter, the Term shall be automatically extended for one
additional year unless, not later than 90 days prior to the scheduled expiration of the Term (or any 

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extension
thereof), the Company shall have given the Executive written notice that the Term will not be extended. 

        3.    Employment Status; Not an Employment Contract.    The Executive acknowledges that this Agreement does not
constitute a contract of employment or impose on the Company any obligation to retain the Executive as an employee and that this Agreement does not prevent the Executive from terminating employment at
any time. If the Executive's employment with the Company terminates for any reason and subsequently a Change in Control shall occur, the Executive shall not be entitled to any benefits hereunder
except as otherwise provided pursuant to Section 1.2. 

        4.    Benefits to Executive.    

        4.1    Stock Acceleration.    If the Change in Control Date occurs during the Term, then, effective upon the Change in
Control Date, (a) each outstanding option to purchase shares of Common Stock of the Company held by the Executive shall become immediately exercisable in full and shares of Common Stock of the
Company received upon exercise of any options will no longer be subject to a right of repurchase by the Company, (b) each outstanding restricted stock award shall be deemed to be fully vested
and will no longer be subject to a right of repurchase by the Company and (c) notwithstanding any provision in any applicable option agreement to the contrary, if Executive's employment is
terminated in connection with, in anticipation of, or within six months after a Change in Control, each such option shall continue to be exercisable by the Executive (to the extent such option was
exercisable on the Change in Control Date) for a period of six months following the date of termination of such employment. 

        4.2    Compensation.    If the Change in Control Date occurs during the Term: 

        (a)   the
Company shall pay to the Executive in a lump sum in cash within 30 days after the Change in Control Date the aggregate of the following amounts: 

        (i)    the
sum of (1) the Executive's base salary through the Change in Control Date, (2) the product of (A) the annual bonus paid or payable (including
any bonus or portion thereof which has been earned but deferred) for the most recently completed fiscal year and (B) a fraction, the numerator of which is the number of days in the current
fiscal year through the Change in Control Date, and the denominator of which is 365 and (3) the amount of any compensation previously deferred by the Executive (together with any accrued
interest or earnings thereon) and any accrued vacation pay, in each case to the extent not previously paid (the sum of the amounts described in clauses (1), (2), and (3) shall be hereinafter
referred to as the "Accrued Obligations"); and 

        (ii)   the
amount equal to (1) two multiplied by (2) the sum of (A) the Executive's highest annual base salary during the five-year period
prior to the Change in Control Date and (B) the Executive's highest annual bonus during the five-year period prior to the Change in Control Date. 

        (b)   for
24 months after the Change in Control Date, or such longer period as may be provided by the terms of the appropriate plan, program, practice or policy, the
Company shall continue to provide benefits to the Executive and the Executive's family at least equal to those provided to them immediately prior to the Change in Control Date, in accordance with the
applicable Benefit Plans in effect on the Measurement Date or, if more favorable to the Executive and his family, in effect generally at any time thereafter with respect to other peer executives of
the Company and its affiliated companies; provided, however, that if the Executive's employment is terminated during this period and the Executive
becomes reemployed with another employer and is eligible to receive a particular type of benefits (e.g., health insurance benefits) from such employer on terms at least as favorable to the Executive 

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and
his family as those being provided by the Company, then the Company shall no longer be required to provide those particular benefits to the Executive and his family; and 

        (c)   if
the Executive's employment is terminated during the 24-month period following the Change in Control Date, to the extent not previously paid or provided,
the Company shall timely pay or provide to the Executive any other amounts or benefits required to be paid or provided or which the Executive is eligible to receive following the Executive's
termination of employment under any plan, program, policy, practice, contract or agreement of the Company and its affiliated companies (such other amounts and benefits shall be hereinafter referred to
as the "Other Benefits"). 

        4.3    Taxes.    

        (a)   In
the event that the Company undergoes a "Change in Ownership or Control" (as defined below), the Company shall, within 30 days after each date on which the
Executive becomes entitled to receive (whether or not then due) a Contingent Compensation Payment (as defined below) relating to such Change in Ownership or Control, determine and notify the Executive
(with reasonable detail regarding the basis for its determinations) (i) which of the payments or benefits due to the Executive (under this Agreement or otherwise) following such Change in
Ownership or Control constitute Contingent Compensation Payments, (ii) the amount, if any, of the excise tax (the "Excise Tax") payable pursuant to Section 4999 of the Internal Revenue
Code of 1986, as amended (the "Code"), by the Executive with respect to such Contingent Compensation Payment and (iii) the amount of the Gross-Up Payment (as defined below) due to
the Executive with respect to such Contingent Compensation Payment. 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 agrees with the Company's determination pursuant to the preceding sentence or (B) that he disagrees with such determination, in which
case he shall indicate which payment and/or benefits should be characterized as a Contingent Compensation Payment, the amount of the Excise Tax with respect to such Contingent Compensation Payment and
the amount of the Gross-Up Payment due to the Executive with respect to such Contingent Compensation Payment. The amount and characterization of any item in the Executive Response shall be
final; provided, however, that 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. Within
90 days after the due date of each Contingent Compensation Payment to the
Executive, the Company shall pay to the Executive, in cash, the Gross-Up Payment with respect to such Contingent Compensation Payment, in the amount determined pursuant to this
Section 4.3(a). 

        (b)   For
purposes of this Section 4.3, 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. 

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        (iii)  "Gross-Up
Payment" shall mean an amount equal to the sum of (i) the amount of the Excise Tax payable with respect to a Contingent Compensation
Payment and (ii) the amount necessary to pay all additional taxes imposed on (or economically borne by) the Executive (including the Excise Taxes, state and federal income taxes and all
applicable employment taxes) attributable to the receipt of such Gross-Up Payment. For purposes of the preceding sentence, all taxes attributable to the receipt of the Gross-Up
Payment shall be computed assuming the application of the maximum tax rates provided by law. 

        4.4    Mitigation.    The Executive shall not be required to mitigate the amount of any payment or benefits provided
for in this Section 4. Further, except as provided in Section 4.2(b), the amount of any payment or benefits provided for in this Section 4 shall not be reduced by any compensation
earned by the Executive as a result of employment by another employer, by retirement benefits, by offset against any amount claimed to be owed by the Executive to the Company or otherwise. 

        4.5    Outplacement Services.    In the event of the termination of the Executive's employment in connection with, in
anticipation of, or within six months after a Change in Control, the Company shall provide outplacement services through one or more outside firms of the Executive's choosing up to an aggregate amount
equal to 15 percent of the Executive's annual base salary, with such services to extend until the earlier of (i) 12 months following the termination of Executive's employment or
(ii) the date the Executive secures full time employment. 

        5.    Disputes.    

        5.1    Settlement of Disputes; Arbitration.    All claims by the Executive for benefits under this Agreement shall be
directed to and determined by the Board of Directors of the Company and shall be in writing. Any denial by the Board of Directors of a claim for benefits under this Agreement shall be delivered to the
Executive in writing and shall set forth the specific reasons for the denial and the specific provisions of this Agreement relied upon. The Board of Directors shall afford a reasonable opportunity to
the Executive for a review of the decision denying a claim. Any further dispute or controversy arising under or in connection with this Agreement shall be settled exclusively by arbitration in Boston,
Massachusetts, 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. 

        5.2    Expenses.    The Company agrees to pay as incurred, to the full extent permitted by law, all legal, accounting
and other fees and expenses which the Executive may reasonably incur as a result of any claim or contest by the Company or others, or any bona fide claim or contest by the Executive, regarding the
validity or enforceability of, or liability under, any provision of this Agreement or any
guarantee of performance thereof (including as a result of any contest by the Executive regarding the amount of any payment or benefits pursuant to this Agreement), plus in each case interest on any
delayed payment at the applicable Federal rate provided for in Section 7872(f)(2)(A) of the Code, provided that the Executive shall reimburse any fees and expenses to the extent any such claim
or contest is not resolved in favor of the Executive. 

        5.3    Compensation During a Dispute.    If the Change in Control Date occurs during the Term and the Executive's
employment with the Company terminates within 24 months following the Change in Control Date, and the right of the Executive to receive benefits under Section 4 (or the amount or nature
of the benefits to which he is entitled to receive) are the subject of a dispute between the Company and the Executive, the Company shall continue (a) to pay to the Executive his base salary in
effect as of the Measurement Date and (b) to provide benefits to the Executive and the Executive's family at least equal to those which would have been provided to them, if the Executive's
employment had not been terminated, in accordance with the applicable Benefit Plans 

5

 

in
effect on the Measurement Date, until such dispute is resolved either by mutual written agreement of the parties or by an arbitrator's award pursuant to Section 5.1. Following the resolution
of such dispute, the sum of the payments made to the Executive under this Section 5.3 shall be deducted from any cash payment which the Executive is entitled to receive pursuant to
Section 4; and if such sum exceeds the amount of the cash payment which the Executive is entitled to receive pursuant to Section 4, the excess of such sum over the amount of such payment
shall be repaid (with interest at the applicable Federal rate provided for in Section 7872(f)(2)(A) of the Code) by the Executive to the Company within 60 days of the resolution of such
dispute. 

        6.    Successors.    

        6.1    Successor to Company.    The Company shall require any successor (whether direct or indirect, by purchase,
merger, consolidation or otherwise) to all or substantially all of the business or assets of the Company expressly to assume and agree to perform this Agreement to the same extent that the Company
would be required to perform it if no such succession had taken place. Failure of the Company to obtain an assumption of this Agreement at or prior to the effectiveness of any succession shall be a
breach of this Agreement. As used in this Agreement, "Company" shall mean the Company as defined above and any successor to its business or assets as aforesaid which assumes and agrees to perform this
Agreement, by operation of law or otherwise. 

        6.2    Successor to Executive.    This Agreement shall inure to the benefit of and be enforceable by the Executive's
personal or legal representatives, executors, administrators, successors, heirs, distributees, devisees and legatees. If the Executive should die while any amount would still be payable to the
Executive or his family hereunder if the Executive had continued to live, all such amounts, unless otherwise provided herein, shall be paid in accordance with the terms of this Agreement to the
executors, personal representatives or administrators of the Executive's estate. 

        7.    Notice.    All notices, instructions and other communications given hereunder or in connection herewith shall be
in writing. Any such notice, instruction or communication shall be sent either (i) by registered or certified mail, return receipt requested, postage prepaid, or (ii) prepaid via a
reputable nationwide overnight courier service, in each case addressed to the Company, at 111 Locke Drive, Marlborough, MA 01752, and to the Executive at the Executive's address indicated on the
signature page of this Agreement (or to such other address as either the Company or the Executive may have furnished to the other in writing in accordance herewith). Any such notice, instruction or
communication shall be deemed to have been delivered five business days after it is sent by registered or certified mail, return receipt requested, postage prepaid, or one business day after it is
sent via a reputable nationwide overnight courier service. Either party may give any notice, instruction or other communication hereunder using any other means, but no such notice, instruction or
other communication shall be deemed to have been duly delivered unless and until it actually is received by the party for whom it is intended. 

        8.    Miscellaneous.    

        8.1    Employment by Subsidiary.    For purposes of this Agreement, the Executive's employment with the Company shall
not be deemed to have terminated solely as a result of the Executive continuing to be employed by a wholly-owned subsidiary of the Company. 

        8.2    Severability.    The invalidity or unenforceability of any provision of this Agreement shall not affect the
validity or enforceability of any other provision of this Agreement, which shall remain in full force and effect. 

        8.3    Injunctive Relief.    The Company and the Executive agree that any breach of this Agreement by the Company is
likely to cause the Executive substantial and irrevocable damage and therefore, in the event of any such breach, in addition to such other remedies which may be available, the Executive shall have the
right to specific performance and injunctive relief. 

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        8.4    Governing Law.    The validity, interpretation, construction and performance of this Agreement shall be
governed by the internal laws of the Commonwealth of Massachusetts, without regard to conflicts of law principles. 

        8.5    Waivers.    No waiver by the Executive at any time of any breach of, or compliance with, any provision of this
Agreement to be performed by the Company shall be deemed a waiver of that or any other provision at any subsequent time. 

        8.6    Counterparts.    This Agreement may be executed in counterparts, each of which shall be deemed to be an
original but both of which together shall constitute one and the same instrument. 

        8.7    Tax Withholding.    Any payments provided for hereunder shall be paid net of any applicable tax withholding
required under federal, state or local law. 

        8.8    Entire Agreement.    This Agreement sets forth the entire agreement of the parties hereto in respect of the
subject matter contained herein and supersedes all prior agreements, promises, covenants, arrangements, communications, representations or warranties, whether oral or written, by any officer, employee
or representative of any party hereto in respect of the subject matter contained herein; and any prior agreement of the parties hereto in respect of the subject matter contained herein is hereby
terminated and cancelled. 

        8.9    Amendments.    This Agreement may be amended or modified only by a written instrument executed by both the
Company and the Executive. 

        8.10    Executive's Acknowledgements.    The Executive acknowledges that he: (a) has read this Agreement;
(b) 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;
(c) understands the terms and consequences of this Agreement; and (d) understands that the law firm of Hale and Dorr LLP is acting as counsel to the Company in connection with the
transactions contemplated by this Agreement, and is not acting as counsel for the Executive. 

        IN
WITNESS WHEREOF, the parties hereto have executed this Agreement as of the day and year first set forth above. 

	 	 	SEPRACOR INC.
	

 	
 	

By:	

/s/  ROBERT F. SCUMACI      
 Robert F. Scumaci

Title: Executive Vice President, Finance and Administration
	

 	
 	

/s/  TIMOTHY J. BARBERICH      
 Timothy J. Barberich

7

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Exhibit 10.42  

 
 

SEPRACOR INC.    
    
    Executive Retention Agreement    
    

        THIS EXECUTIVE RETENTION AGREEMENT by and between Sepracor Inc., a Delaware corporation (the "Company"),
and                (the "Executive") is made as
of February 1, 2002 (the "Effective Date"). 

        WHEREAS,
the Company recognizes that, as is the case with many publicly-held corporations, the possibility of a change in control of the Company exists and that such
possibility, and the uncertainty and questions which it may raise among key personnel, may result in the departure or distraction of key personnel to the detriment of the Company and its stockholders,
and 

        WHEREAS,
the Board of Directors of the Company (the "Board") has determined that appropriate steps should be taken to reinforce and encourage the continued employment and dedication of
the Company's key personnel without distraction from the possibility of a change in control of the Company and related events and circumstances. 

        NOW,
THEREFORE, as an inducement for and in consideration of the Executive remaining in its employ, the Company agrees that the Executive shall receive the severance benefits set forth
in this Agreement (including a certain "gross up" payment originally authorized by the Board on February 25, 1999 and set forth in Section 4.3 of this Agreement) in the event the
Executive's employment with the Company is terminated under the circumstances described below subsequent to a Change in Control (as defined in Section 1.1). 

        1.    Key Definitions.    As used herein, the following terms shall have the following respective meanings: 

        1.1   "Change in Control" means an event or occurrence set forth in any one or more of subsections (a) through
(d) below (including an event or occurrence that constitutes a Change in Control under one of such subsections but is specifically exempted from another such subsection): 

        (a)   the
acquisition by an individual, entity or group (within the meaning of Section 13(d)(3) or 14(d)(2) of the Securities Exchange Act of 1934, as amended (the
"Exchange Act")) (a "Person") of beneficial ownership of any capital stock of the Company if, after such acquisition, such Person beneficially owns (within the meaning of Rule 13d-3
promulgated under the Exchange Act) 30% or more of either (x) the then-outstanding shares of common stock of the Company (the "Outstanding Company Common Stock") or (y) the
combined voting power of the then-outstanding securities of the Company entitled to vote generally in the election of directors (the "Outstanding Company Voting Securities");  provided, however, that for
purposes of this subsection (a), the following acquisitions shall not constitute a Change in Control: (i) any
acquisition directly from the Company (excluding an acquisition pursuant to the exercise, conversion or exchange of any security exercisable for, convertible into or exchangeable for common stock or
voting securities of the Company, unless the Person exercising, converting or exchanging such security acquired such security directly from the Company or an underwriter or agent of the Company),
(ii) any acquisition by the Company, (iii) any acquisition by any employee benefit plan (or related trust) sponsored or maintained by the Company or any corporation controlled by the
Company, or (iv) any acquisition by any corporation pursuant to a transaction which complies with clauses (i) and (ii) of subsection (c) of this Section 1.1; or 

        (b)   such
time as the Continuing Directors (as defined below) do not constitute a majority of the Board (or, if applicable, the Board of Directors of a successor corporation
to the Company), where the term "Continuing Director" means at any date a member of the Board (i) who was a member of the Board on the date of the execution of this Agreement or (ii) who
was nominated or elected subsequent to such date by at least a majority of the 

 

directors
who were Continuing Directors at the time of such nomination or election or whose election to the Board was recommended or endorsed by at least a majority of the directors who were
Continuing Directors at the time of such nomination or election; provided, however, that there shall be
excluded from this clause (ii) any individual whose initial assumption of office occurred as a result of an actual or threatened election contest with respect to the election or removal of
directors or other actual or threatened solicitation of proxies or consents, by or on behalf of a person other than the Board; or 

        (c)   the
consummation of a merger, consolidation, reorganization, recapitalization or statutory share exchange involving the Company or a sale or other disposition of all or
substantially all of the assets of the Company in one or a series of transactions (a "Business Combination"), unless, immediately following such Business Combination, each of the following two
conditions is satisfied: (i) the beneficial
owners of all or substantially all of the Outstanding Company Common Stock and Outstanding Company Voting Securities immediately prior to such Business Combination beneficially own, directly or
indirectly, more than 50% of the then-outstanding shares of common stock and the combined voting power of the then-outstanding securities entitled to vote generally in the
election of directors, respectively, of the resulting or acquiring corporation in such Business Combination (which shall include, without limitation, a corporation which as a result of such
transaction owns the Company or substantially all of the Company's assets either directly or through one or more subsidiaries) (such resulting or acquiring corporation is referred to herein as the
"Acquiring Corporation") in substantially the same proportions as their ownership, immediately prior to such Business Combination, of the Outstanding Company Common Stock and Outstanding Company
Voting Securities, respectively; and (ii) no Person (excluding the Acquiring Corporation or any employee benefit plan (or related trust) maintained or sponsored by the Company or by the
Acquiring Corporation) beneficially owns, directly or indirectly, 30% or more of the then outstanding shares of common stock of the Acquiring Corporation, or of the combined voting power of the
then-outstanding securities of such corporation entitled to vote generally in the election of directors (except to the extent that such ownership existed prior to the Business
Combination); or 

        (d)   approval
by the stockholders of the Company of a complete liquidation or dissolution of the Company. 

        1.2   "Change in Control Date" means the first date during the Term (as defined in Section 2) 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 prior to the
date on which the Change in Control occurs, and (c) either (i) such termination of employment (x) was at the request of a third party who has taken steps reasonably calculated to
effect a Change in Control or (y) otherwise arose in connection with or in anticipation of a Change in Control, or (ii) such termination of employment occurs following the execution of a
definitive agreement for such Change in Control, then for all purposes of this Agreement the "Change in Control Date" shall mean the date immediately prior to the date of such termination of
employment. 

        1.3   "Cause" means: 

        (a)   the
Executive's willful and continued failure to substantially perform his reasonable assigned duties (other than any such failure resulting from incapacity due to
physical or mental illness or any failure after the Executive gives notice of termination for Good Reason and Good Reason exists), which failure is not cured within 30 days after a written
demand for substantial performance is received by the Executive from the Board of Directors of the 

2

 

Company
which specifically identifies the manner in which the Board of Directors believes the Executive has not substantially performed the Executive's duties; or 

        (b)   the
Executive's willful engagement in illegal conduct or gross misconduct which is materially and demonstrably injurious to the Company. 

        For
purposes of this Section 1.3, no act or failure to act by the Executive shall be considered "willful" unless it is done, or omitted to be done, in bad faith and without
reasonable belief that the Executive's action or omission was in the best interests of the Company. 

        1.4   "Good Reason" means the occurrence, without the Executive's written consent, of any of the events or circumstances set
forth in clauses (a) through (f) below. Notwithstanding the occurrence of any such event or circumstance, such occurrence shall not be deemed to constitute Good Reason if, prior to the
Date of Termination specified in the Notice of Termination (each as defined in Section 3.2(a)) given by the Executive in respect thereof, such event or circumstance has been fully corrected and
the Executive has been reasonably compensated for any losses or damages resulting therefrom (provided that such right of correction by the Company shall only apply to the first Notice of Termination
for Good Reason given by the Executive). 

        (a)   the
assignment to the Executive of duties inconsistent in any material respect with the Executive's position (including status, offices, titles or reporting
requirements), authority or responsibilities in effect immediately prior to the earliest to occur of (i) the Change in Control Date, (ii) the date of the execution by the Company of the
initial written agreement or instrument providing for the Change in Control or (iii) the date of the adoption by the Board of Directors of a resolution providing for the Change in Control (with
the earliest to occur of such dates referred to herein as the "Measurement Date"), or any other action or omission by the Company which results in a material diminution in such position, authority or
responsibilities; 

        (b)   a
reduction in the Executive's annual base salary or bonus eligibility as in effect on the Measurement Date or as the same was or may be increased thereafter from time
to time; 

        (c)   the
failure by the Company to (i) continue in effect any material compensation or benefit plan or program (including without limitation any life insurance,
medical, health and accident or disability plan and any vacation or automobile program or policy) (a "Benefit Plan") in which the Executive participates or which is applicable to the Executive
immediately prior to the Measurement Date, unless an equitable arrangement (embodied in an ongoing substitute or alternative plan) has been made with respect to such plan or program,
(ii) continue the Executive's participation therein (or in such substitute or alternative plan) on a basis not materially less favorable, in terms of the amount of benefits provided, than the
basis existing immediately prior to the Measurement Date or (iii) award cash bonuses to the Executive in amounts and in a manner substantially consistent with past practice in light of the
Company's financial performance; 

        (d)   a
change by the Company in the location at which the Executive performs his principal duties for the Company to a new location that increases the Executive's daily
commute by more than 40 miles (as
measured immediately prior to the Measurement Date); or a requirement by the Company that the Executive travel on Company business to a substantially greater extent than required immediately prior to
the Measurement Date; 

        (e)   the
failure of the Company to obtain the agreement from any successor to the Company to assume and agree to perform this Agreement, as required by Section 6.1; or 

        (f)    any
failure of the Company to pay or provide to the Executive any portion of the Executive's compensation or benefits due under any Benefit Plan within seven days of the 

3

 

date
such compensation or benefits are due, or any material breach by the Company of this Agreement or any employment agreement with the Executive. 

        The
Executive's right to terminate his employment for Good Reason shall not be affected by his incapacity due to physical or mental illness. 

        1.5   "Disability" means the Executive's absence from the full-time performance of the Executive's duties with the
Company for 180 consecutive calendar days as a result of incapacity due to mental or physical illness which is determined to be total and permanent by a physician selected by the Company or its
insurers and acceptable to the Executive or the Executive's legal representative. 

        2.    Term of Agreement.    This Agreement, and all rights and obligations of the parties hereunder, shall take effect
upon the Effective Date and shall expire upon the first to occur of (a) the expiration of the Term (as defined below) if a Change in Control has not occurred during the Term, (b) the
termination of the Executive's employment with the Company prior to the Change in Control Date, (c) the date 24 months after the Change in Control Date, if the Executive is still
employed by the Company as of such later date (unless the Company has provided notice of termination of Executive's employment within such 24 month period in which case the Agreement shall
expire on the termination of the Executive's employment with the Company), or (d) the fulfillment by the Company of all of its obligations under Sections 4 and 5.2 and 5.3 if the Executive's
employment with the Company terminates within 24 months (or after 24 months if the Company provides notice to the Executive of termination of his employment within such 24 month
period) following the Change in Control Date. "Term" shall mean the period commencing as of the Effective Date and continuing in effect through March 31, 2007;  provided, however, that commencing on
April 1, 2007 and each April 1 thereafter, the Term
shall be automatically extended for one additional year unless, not later than 90 days prior to the scheduled expiration of the Term (or any extension thereof), the Company shall have given the
Executive written notice that the Term will not be extended. 

        3.    Employment Status; Termination Following Change in Control.    

        3.1    Not an Employment Contract.    The Executive acknowledges that this Agreement does not constitute a contract of
employment or impose on the Company any obligation to retain the Executive as an employee and that this Agreement does not prevent the Executive from terminating employment at any time. If the
Executive's employment with the Company terminates for any reason and subsequently a Change in Control shall occur, the Executive shall not be entitled to any benefits hereunder except as otherwise
provided pursuant to Section 1.2. 

        3.2    Termination of Employment.    

        (a)   If
the Change in Control Date occurs during the Term, any termination of the Executive's employment by the Company or by the Executive within 24 months following
the Change in Control Date (other than due to the death of the Executive) shall be communicated by a written notice to the other party hereto (the "Notice of Termination"), given in accordance with
Section 7. Any Notice of Termination shall: (i) indicate the specific termination provision (if any) of this Agreement relied upon by the party giving such notice, (ii) to the
extent applicable, set forth in reasonable detail the facts and circumstances claimed to provide a basis for termination of the Executive's employment under the provision so indicated and
(iii) specify the Date of Termination (as defined below). The effective date of an employment termination (the "Date of Termination") shall be the close of business on the date specified in the
Notice of Termination (which date may not be less than 15 days or more than 45 days after the date of delivery of such Notice of Termination), in the case of a termination other than one
due to the Executive's death, or the date of the Executive's death, as the case may be. In the event the Company fails to satisfy the requirements of Section 3.2(a) regarding a Notice of
Termination, the purported termination of the Executive's employment pursuant to such Notice of Termination shall not be effective for purposes of this Agreement. 

4

  

        (b)   The
failure by the Executive or the Company to set forth in the Notice of Termination any fact or circumstance which contributes to a showing of Good Reason or Cause
shall not waive any right of the Executive or the Company, respectively, hereunder or preclude the Executive or the Company, respectively, from asserting any such fact or circumstance in enforcing the
Executive's or the Company's rights hereunder. 

        (c)   Any
Notice of Termination for Cause given by the Company must be given within 90 days of the occurrence of the event(s) or circumstance(s) which constitute(s)
Cause. Prior to any Notice of Termination for Cause being given (and prior to any termination for Cause being effective), the Executive shall be entitled to a hearing before the Board of Directors of
the Company at which he may, at his election, be represented by counsel and at which he shall have a reasonable opportunity to be heard. Such hearing shall be held on not less than 15 days
prior written notice to the Executive stating the Board of Directors' intention to terminate the Executive for Cause and stating in detail the particular event(s) or circumstance(s) which the Board of
Directors believes constitutes Cause for termination. 

        (d)   Any
Notice of Termination for Good Reason given by the Executive must be given within 90 days of the occurrence of the event(s) or circumstance(s) which
constitute(s) Good Reason. 

        4.    Benefits to Executive.    

        4.1    Stock Acceleration.    If the Change in Control Date occurs during the Term, then, effective upon the Change in
Control Date, (a) each outstanding option to purchase shares of Common Stock of the Company held by the Executive shall vest and become immediately exercisable in full and shares of Common
Stock of the Company received upon exercise of any options will no longer be subject to a right of repurchase by the Company, (b) each outstanding restricted stock award shall be deemed to be
fully vested and will no longer be subject to a right of repurchase by the Company and (c) if the Executive's employment is thereafter terminated for any reason (other than by the Company for
Cause), then each such option (or any option into which such option is converted, exchanged or substituted in connection with the Change in Control) shall continue to be exercisable by the Executive
(to the extent such option was exercisable on the Date of Termination) for a period of six months following the Date of Termination, notwithstanding any provision in any applicable option agreement to
the contrary; provided however that if stock options held generally by employees of the Company under the stock option or stock incentive plan under which Executive's stock option was granted
terminate or expire if not exercised upon, immediately prior to or otherwise in connection with the Change in Control, such stock option held by Executive shall likewise terminate or expire. 

        4.2    Compensation    If the Change in Control Date occurs during the Term and the Executive's employment with the
Company terminates within 24 months following the Change in Control Date, the Executive shall be entitled to the following benefits: 

        (a)    Termination Without Cause or for Good Reason.    If the Executive's employment with the Company is terminated
by the Company (other than for Cause, Disability or Death) or by the Executive for Good Reason within 24 months following the Change in Control Date, then the Executive shall be entitled to the
following benefits: 

        (i)    the
Company shall pay to the Executive in a lump sum in cash within 30 days after the Date of Termination the aggregate of the following amounts: 

        (1)   the
sum of (A) the Executive's base salary through the Date of Termination, (B) the product of (x) the annual bonus paid or payable (including any
bonus or portion thereof which has been earned but deferred) for the most recently completed fiscal year and (y) a fraction, the numerator of which is the number of days in the 

5

 

current
fiscal year through the Date of Termination, and the denominator of which is 365 and (C) the amount of any compensation previously deferred by the Executive (together with any accrued
interest or earnings thereon) and any accrued vacation pay, in each case to the extent not previously paid (the sum of the amounts described in clauses (A), (B), and (C) shall be hereinafter
referred to as the "Accrued Obligations"); and 

        (2)   the
amount equal to (A) two multiplied by (B) the sum of (x) the Executive's highest annual base salary during the five-year period
prior to the Change in Control Date and (y) the Executive's highest annual bonus during the five-year period prior to the Change in Control Date. 

        (ii)   for
24 months after the Date of Termination, or such longer period as may be provided by the terms of the appropriate plan, program, practice or policy, the
Company shall continue to provide benefits to the Executive and the Executive's family at least equal to those which would have been provided to them if the Executive's employment had not been
terminated, in accordance with the applicable Benefit Plans in effect on the Measurement Date or, if more favorable to the Executive and his family, in effect generally at any time thereafter with
respect to other peer executives of the Company and its affiliated companies; provided, however, that if the Executive becomes reemployed with another
employer and is eligible to receive a particular type of benefits (e.g., health insurance benefits) from such employer on terms at least as favorable to the Executive and his family as those being
provided by the Company, then the Company shall no longer be required to provide those particular benefits to the Executive and his family; and 

        (iii)  to
the extent not previously paid or provided, the Company shall timely pay or provide to the Executive any other amounts or benefits required to be paid or provided
or which the Executive is eligible to receive following the Executive's termination of employment under any plan, program, policy, practice, contract or agreement of the Company and its affiliated
companies (such other amounts and benefits shall be hereinafter referred to as the "Other Benefits"). 

        (b)    Resignation without Good Reason; Termination for Death or Disability.    If the Executive voluntarily
terminates his employment with the Company within 24 months following the Change in Control Date, excluding a termination for Good Reason, or if the Executive's employment with the Company is
terminated by reason of the Executive's death or Disability within 24 months following the Change in Control Date, then the Company shall (i) pay the Executive (or his estate, if
applicable), in a lump sum in cash within 30 days after the Date of Termination, the Accrued Obligations and (ii) timely pay or provide to the Executive the Other Benefits. 

        (c)    Termination for Cause.    If the Company terminates the Executive's employment with the Company for Cause
within 24 months following the Change in Control Date, then the Company shall (i) pay the Executive, in a lump sum in cash within 30 days after the Date of Termination, the sum of
(A) the Executive's annual base salary through the Date of Termination and (B) the amount of any compensation previously deferred by the Executive, in each case to the extent not
previously paid, and (ii) timely pay or provide to the Executive the Other Benefits. 

        4.3    Taxes.    

        (a)   In
the event that the Company undergoes a "Change in Ownership or Control" (as defined below), the Company shall, within 30 days after each date on which the
Executive becomes entitled to receive (whether or not then due) a Contingent Compensation Payment 

6

 

(as
defined below) relating to such Change in Ownership or Control, determine and notify the Executive (with reasonable detail regarding the basis for its determinations) (i) which of the
payments or benefits due to the Executive (under this Agreement or otherwise) following such Change in Ownership or Control constitute Contingent Compensation Payments, (ii) the amount, if any,
of the excise tax (the "Excise Tax") payable pursuant to Section 4999 of the Internal Revenue Code of 1986, as amended (the "Code"), by the Executive with respect to such Contingent
Compensation Payment and (iii) the amount of the Gross-Up Payment (as defined below) due to the Executive with respect to such Contingent Compensation Payment. 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 agrees with the Company's
determination pursuant to the preceding sentence or (B) that he disagrees with such determination, in which case he shall indicate which payment and/or benefits should be characterized as a
Contingent Compensation Payment, the amount of the Excise Tax with respect to such Contingent Compensation Payment and the amount of the Gross-Up Payment due to the Executive with respect
to such Contingent Compensation Payment. The amount and characterization of any item in the Executive Response shall be final; provided, however, that 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. Within 90 days after the due date of each Contingent Compensation Payment to the
Executive, the Company shall pay to the Executive, in cash, the Gross-Up Payment with respect to such Contingent Compensation Payment, in the amount determined pursuant to this
Section 4.3. 

        (b)   For
purposes of this Section 4.3, 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. 

        (iii)  "Gross-Up
Payment" shall mean an amount equal to the sum of (i) the amount of the Excise Tax payable with respect to a Contingent Compensation
Payment and (ii) the amount necessary to pay all additional taxes imposed on (or economically borne by) the Executive (including the Excise Taxes, state and federal income taxes and all
applicable employment taxes) attributable to the receipt of such Gross-Up Payment. For purposes of the preceding sentence, all taxes
attributable to the receipt of the Gross-Up Payment shall be computed assuming the application of the maximum tax rates provided by law. 

        4.4    Mitigation    The Executive shall not be required to mitigate the amount of any payment or benefits provided
for in this Section 4 by seeking other employment or otherwise. Further, except as provided in Section 4.2(a)(ii), the amount of any payment or benefits provided for in this
Section 4 shall not be reduced by any compensation earned by the Executive as a result of employment by another employer, by retirement benefits, by offset against any amount claimed to be owed
by the Executive to the Company or otherwise. 

        4.5    Outplacement Services    In the event the Executive is terminated by the Company (other than for Cause,
Disability or Death), or the Executive terminates employment for Good Reason, within 24 months following the Change in Control Date, the Company shall provide outplacement 

7

 

services
through one or more outside firms of the Executive's choosing up to an aggregate amount equal to 15 percent of the Executive's annual base salary, with such services to extend until
the earlier of (i) 12 months following the termination of Executive's employment or (ii) the date the Executive secures full time employment. 

        5.    Disputes.    

        5.1    Settlement of Disputes; Arbitration    All claims by the Executive for benefits under this Agreement shall be
directed to and determined by the Board of Directors of the Company and shall be in writing. Any denial by the Board of Directors of a claim for benefits under this Agreement shall be delivered to the
Executive in writing and shall set forth the specific reasons for the denial and the specific provisions of this Agreement relied upon. The Board of Directors shall afford a reasonable opportunity to
the Executive for a review of the decision denying a claim. Any further dispute or controversy arising under or in connection with this Agreement shall be settled exclusively by arbitration in Boston,
Massachusetts, 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. 

        5.2    Expenses    The Company agrees to pay as incurred, to the full extent permitted by law, all legal, accounting
and other fees and expenses which the Executive may reasonably incur as a result of any claim or contest by the Company or others, or any bona fide claim or contest by the Executive, regarding the
validity or enforceability of, or liability under, any provision of this Agreement or any guarantee of performance thereof (including as a result of any contest by the Executive regarding the amount
of any payment or benefits pursuant to this Agreement), plus in each case interest on any delayed payment at the applicable Federal rate provided for in Section 7872(f)(2)(A) of the Code,
provided that the Executive shall reimburse any fees and expenses to the extent any such claim or contest is not resolved in favor of the Executive, provided further that notwithstanding the forgoing,
the
Executive shall not be required to reimburse any fees and expenses if such claim or contest relates to termination by the Executive for Good Reason. 

        5.3    Compensation During a Dispute.    If the Change in Control Date occurs during the Term and the Executive's
employment with the Company terminates within 24 months following the Change in Control Date, and the right of the Executive to receive benefits under Section 4 (or the amount or nature
of the benefits to which he is entitled to receive) are the subject of a dispute between the Company and the Executive, the Company shall continue (a) to pay to the Executive his base salary in
effect as of the Measurement Date and (b) to provide benefits to the Executive and the Executive's family at least equal to those which would have been provided to them, if the Executive's
employment had not been terminated, in accordance with the applicable Benefit Plans in effect on the Measurement Date, until such dispute is resolved either by mutual written agreement of the parties
or by an arbitrator's award pursuant to Section 5.1. Following the resolution of such dispute, the sum of the payments made to the Executive under clause (a) of this Section 5.3
shall be deducted from any cash payment which the Executive is entitled to receive pursuant to Section 4; and if such sum exceeds the amount of the cash payment which the Executive is entitled
to receive pursuant to Section 4, the excess of such sum over the amount of such payment shall be repaid (with interest at the applicable Federal rate provided for in
Section 7872(f)(2)(A) of the Code) by the Executive to the Company within 60 days of the resolution of such dispute. 

        6.    Successors.    

        6.1    Successor to Company    The Company shall require any successor (whether direct or indirect, by purchase,
merger, consolidation or otherwise) to all or substantially all of the business or assets of the Company expressly to assume and agree to perform this Agreement to the same extent that the Company
would be required to perform it if no such succession had taken place. 

8

 

Failure
of the Company to obtain an assumption of this Agreement at or prior to the effectiveness of any succession shall be a breach of this Agreement and shall constitute Good Reason if the
Executive elects to terminate employment, except that for purposes of implementing the foregoing, the date on which any such succession becomes effective shall be deemed the Date of Termination. As
used in this Agreement, "Company" shall mean the Company as defined above and any successor to its business or assets as aforesaid which assumes and agrees to perform this Agreement, by operation of
law or otherwise. 

        6.2    Successor to Executive    This Agreement shall inure to the benefit of and be enforceable by the Executive's
personal or legal representatives, executors, administrators, successors, heirs, distributees, devisees and legatees. If the Executive should die while any amount would still be payable to the
Executive or his family hereunder if the Executive had continued to live, all such amounts, unless otherwise provided herein, shall be paid in accordance with the terms of this Agreement to the
executors, personal representatives or administrators of the Executive's estate. 

        7.    Notice.    All notices, instructions and other communications given hereunder or in connection herewith shall be
in writing. Any such notice, instruction or communication shall be sent either (i) by registered or certified mail, return receipt requested, postage prepaid, or (ii) prepaid via a
reputable nationwide overnight courier service, in each case addressed to the Company, at 111 Locke Drive, Marlborough, MA 01752, and to the Executive at the Executive's address indicated on the
signature page of this Agreement (or to such other address as either the Company or the Executive may have furnished to the other in writing in accordance herewith). Any such notice, instruction or
communication shall be deemed to have been delivered five business days after it is sent by registered or certified mail, return receipt requested, postage prepaid, or one business day after it is
sent via a reputable nationwide overnight courier service. Either party may give any notice, instruction or other communication hereunder using any other means, but no such notice, instruction or
other communication shall be deemed to have been duly delivered unless and until it actually is received by the party for whom it is intended. 

        8.    Miscellaneous.    

        8.1    Employment by Subsidiary    For purposes of this Agreement, the Executive's employment with the Company shall
not be deemed to have terminated solely as a result of the Executive continuing to be employed by a wholly-owned subsidiary of the Company. 

        8.2    Severability    The invalidity or unenforceability of any provision of this Agreement shall not affect the
validity or enforceability of any other provision of this Agreement, which shall remain in full force and effect. 

        8.3    Injunctive Relief    The Company and the Executive agree that any breach of this Agreement by the Company is
likely to cause the Executive substantial and irrevocable damage and therefore, in the event of any such breach, in addition to such other remedies which may be available, the Executive shall have the
right to specific performance and injunctive relief. 

        8.4    Governing Law    The validity, interpretation, construction and performance of this Agreement shall be governed
by the internal laws of the Commonwealth of Massachusetts, without regard to conflicts of law principles. 

        8.5    Waivers    No waiver by the Executive at any time of any breach of, or compliance with, any provision of this
Agreement to be performed by the Company shall be deemed a waiver of that or any other provision at any subsequent time. 

        8.6    Counterparts    This Agreement may be executed in counterparts, each of which shall be deemed to be an original
but both of which together shall constitute one and the same instrument. 

9

 

        8.7    Tax Withholding    Any payments provided for hereunder shall be paid net of any applicable tax withholding
required under federal, state or local law. 

        8.8    Entire Agreement    This Agreement sets forth the entire agreement of the parties hereto in respect of the
subject matter contained herein and supersedes all prior agreements, promises, covenants, arrangements, communications, representations or warranties, whether oral or written, by any officer, employee
or representative of any party hereto in respect of the subject matter contained herein; and any prior agreement of the parties hereto in respect of the subject matter contained herein is hereby
terminated and cancelled, including without limitation the letter Agreement
dated                               by and between the Company and the Executive.
Notwithstanding the foregoing, (a) in the event
that this Agreement is terminated as a result of (i) the expiration of the Term prior to the occurrence of a Change in Control or (ii) the termination of the Executive's employment by
the Company prior to the Change in Control Date, the Letter Agreement
dated                               by and between the Company and the Executive shall not be
superseded and shall continue in full force and
effect in accordance with its terms and (b) for the avoidance of doubt, except as specifically described herein in Section 4.1, the stock options and restricted stock awards held by
Executive shall continue to be governed by the applicable stock option or stock incentive plan under which they were granted or issued (or any successor plan thereto) and any related stock option or
restricted stock agreement, as the same may be amended or modified. 

        8.9    Amendments    This Agreement may be amended or modified only by a written instrument executed by both the
Company and the Executive. 

        8.10    Executive's Acknowledgements    The Executive acknowledges that he: (a) has read this Agreement;
(b) 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;
(c) understands the terms and consequences of this Agreement; and (d) understands that the law firm of Hale and Dorr LLP is acting as counsel to the Company in connection with the
transactions contemplated by this Agreement, and is not acting as counsel for the Executive. 

[Remainder
of Page Intentionally Left Blank] 

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        IN
WITNESS WHEREOF, the parties hereto have executed this Agreement as of the day and year first set forth above. 

	 	 	SEPRACOR INC.
	

 	
 	

By:	

 
	 	 	 	

	 	 	Title:	 
	 	 	 	

	

 	
 	

 [Executive]
	

 	
 	

Address:
	

 	
 	

	

 	
 	

	

 	
 	

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SEPRACOR INC. Executive Retention Agreement

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