Document:

Letter Agreement of Edward M. Hurwitz and ACLARA BioSciences, Inc.

EXHIBIT 10.37 
[GRAPHIC REMOVED HERE] 
 
October 29, 2002 
Ed Hurwitz 
177 Watkins Ave 
Atherton, CA 94027 
 
Dear Ed, 
 
We are pleased to confirm the changes to your employment with ACLARA Biosciences, Inc. Your position is that of Executive
Director at ACLARA BioSciences, Inc., Inc. This is a temporary position that reports directly to ACLARA’s Board of Directors. This new role and salary terms described below is effective October 15, 2002. Effective December 1, 2002, you will
assume the position of interim CEO. This title and role will continue until a new CEO is hired with the company. During your temporary employment with the Company you will be compensated at rate of $325,000 annually paid on the 15th and the last day of the month. Because your position is classified as “temporary” you will not be eligible for the
ACLARA employee benefits program. 
 
You will also be paid a one
time bonus of $50,000 payable upon commencement of employment of a new CEO. This is in lieu of the bonus included in your original offer letter dated in June of 2002. 
 
You have been granted an option to purchase 100,000 shares of ACLARA common stock that will be vested immediately. This
option is under our Stock Option Plan and the details and option price have already been provided to you. 
 
ACLARA agrees to extend its standard D&O indemnification coverage to you and will extend this to Alta Partners provided our respective counsels can agree on acceptable terms. 
 
We hope your employment experience with ACLARA BioSciences, Inc. will be
challenging, satisfying, and mutually beneficial. The employment relationship between you and the Company is “at-will.” This means that you and the Company each have the right to terminate the employment relationship at any time with or
without cause and without advanced notice. While other personnel policies and programs exist and may be changed from time to time, your at-will status is not subject to change except by expressed written agreement signed by an officer of the
Company. This paragraph sets forth our entire agreement regarding your status as an employee of the Company and our mutual right to terminate that status at any time. 
 
Please indicate your acceptance of the position by signing this letter and returning it to Leslie Hill at ACLARA. This letter
and offer supersede any previous discussion or correspondence by ACLARA BioSciences, Inc. 
 
Sincerely, 
 
/s/  Thomas Baruch 
Thomas Baruch 
Chairman 
 

	 Accepted:      /s/  Edward
Hurwitz        
	 	 Date:        12/12/02Letter Agreement of Edward M. Hurwitz and ACLARA BioSciences, Inc.

 
EXHIBIT 10.38

 
[GRAPHIC REMOVED HERE] 
 
November 27, 2002 
Ed Hurwitz 
177 Watkins Ave 
Atherton, CA 94027 
 
Dear Ed, 
 
This letter supplements your employment
letter dated October 29, 2002. It is agreed that in the event that your service on the board of directors does not extend beyond the current term (which ends at the 2003 annual shareholders meeting) you will continue to provide advice and
consultation in an employment capacity to ACLARA BioSciences, Inc. for a period of two years (which period is referred to herein as the “Additional Period”). Your options will cease to vest but will continue to be exercisable during the
Additional Period. No cash compensation will accrue during the Additional Period, and your services will be limited to being available for advice and consultation up to a maximum of four hours per month. 
 
Sincerely, 
 
/s/  Thomas Baruch 
Thomas Baruch 
Chairman 
 

	 Accepted:      /s/ Edward
Hurwitz            
	 	 Date:        12/12/02Employment Letter Between Thomas Klopack and ACLARA BioSciences, Inc.

 
EXHIBIT 10.39

 
March 18, 2003 
 
Mr. Thomas Klopack 
864 Chelsea Lane 
Encinitas, CA 92024

 
Dear Tom: 
 
ACLARA BioSciences, Inc. (the “Company”) is pleased
to offer you employment on the terms set forth below. 
 
1.    Position. You will serve in a full-time capacity as Chief Executive Officer. You will report to the Company’s Board of Directors. By signing this letter agreement, you represent and warrant to
the Company that you are under no contractual commitments inconsistent with your obligations to the Company. You will work principally out of the Company’s facility in the San Francisco Bay Area, but it is understood that you will commute from
San Diego and you will be entitled to work a minimum of one (1) day per week out of your home or other office in San Diego County. 
 
2.    Board of Directors. You will be appointed as a member of the Board of Directors of the Company effective
as of the start date of your employment. 
 
3.    Salary. You will be paid a base salary at the annual rate of $345,000, payable in bi-weekly installments in accordance with the Company’s standard payroll practices for salaried employees. This
salary will be subject to increase pursuant to the Company’s employee compensation policies in effect from time to time. 
 
4.    Bonus. You will be eligible for an annual bonus of up to 35% of your base salary based on achievement of
mutually agreed-upon milestones, assessed at the end of each evaluation period. 
 
5.    Employee Benefits. As a regular employee of the Company, you will be eligible to participate in a number of Company-sponsored benefits. In addition, you will be
entitled to paid time off in accordance with the Company’s policy, as in effect from time to time. 
 
6.    Stock Options. Subject to the approval of the Company’s Board of Directors, you will be granted
options to purchase 700,000 shares of the Company’s Common Stock. Such options will be incentive stock options to the extent permissible under applicable tax laws, and the balance will be nonstatutory stock options. The exercise price per share
will be equal to the closing price of the Company’s Common Stock on the trading day immediately prior to the date the options are granted, which is expected to be the date on which you commence employment with the Company. The options will
generally be subject to the terms and conditions applicable to options granted under the Company’s Amended and Restated 1997 Stock Plan, as described in that Plan and the applicable stock option agreement, although the 
 

nonstatutory options may be granted outside such Plan. The options will vest over four (4) years, with twenty-five percent (25%) of the
shares subject to such options vesting on the first anniversary of the date you commence your employment with the Company and one forty-eighth (1/48th) of the original number of shares vesting on each monthly anniversary of such date thereafter while you remain a service provider to the Company. Such vesting shall be subject to acceleration as
provided for in the Severance Agreement referred to in paragraph 7 below. 
 
7.    Severance Agreement. The Company will enter into a Severance Agreement with you substantially in the form attached hereto as Exhibit A. This Severance Agreement will provide for certain
severance payments and acceleration of vesting of all stock option grants under circumstances described in such agreement. 
 
8.    Moving and Commuting Expenses. 
 
(a)    The Company agrees to pay all reasonable moving and other
relocation expenses associated with selling your house in San Diego County and moving your family and household to the Bay Area, including the cost of moving personal and household effects, brokers’ commissions, expenses associated with up to
three house hunting trips for the family and a $10,000 allowance for miscellaneous items; provided, however, that the Company’s payment of any such relocation costs shall be reduced by the amount of commuting costs reimbursed by the Company
pursuant to clause (b) below relating to commuting costs incurred after the six (6) month anniversary of your commencement of employment. The Company will pay 75% of your income tax costs relating to such relocation expenses. 
 
(b)    In addition, the
Company agrees to pay for up to twelve (12) months of commuting costs incurred prior to completing a move. These commuting costs will cover a furnished apartment or equivalent, a computer, printer and reasonable communication gear at the employees
residence in San Diego, a local health club membership and dues in the Bay Area, one round trip airfare per week to San Diego and transportation costs to and from the airport from work or apartment in the Bay Area and home in San Diego. To the
extent permitted by applicable tax laws, these commuting costs will be covered under company business expenses and not be recorded as income to you. To the extent such commuting costs are recorded as income to you, the Company will pay 100% of your
income tax costs relating thereto. 
 
9.    Confidential Information and Invention Assignment Agreement. Like all Company employees, you will be required, as a condition of your employment with the Company, to sign the Company’s standard
Confidential Information and Invention Assignment Agreement. 
 
10.    Period of Employment. Employment with the Company is for no specific period of time. Your employment with the Company will be “at will,” meaning that either you or the Company will be
entitled to terminate your employment at any time and for any reason, with or without Cause (as defined in the Severance Agreement referred to in paragraph 7 above). Any contrary representations which may have been made to you are superseded by this
offer. This is the full and complete agreement between you and the Company on this term. The “at will” nature of your employment may only be changed in an express written agreement signed by you and a duly authorized officer of the
Company. 
 

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11.    Outside Activities. For so long as you are a full-time Company employee, you agree that, unless the Board of Directors consents in writing otherwise, you will devote substantially all your business
time and efforts to the company; provided, however, that your continued service as a member of the Board of Directors of up to one other company at any one time and your continued personal investments and related activities will not be deemed a
violation of this term so long in each case that such activities do not materially interfere with your duties under this letter agreement. For so long as you are a full-time company employee, you also will not knowingly assist any person or
organization in competing with the Company, in preparing to compete with the Company or in hiring any employees of the Company. 
 
12.    Withholding Taxes. All forms of compensation referred to in this letter are subject to reduction to
reflect applicable withholding and payroll taxes (other than as provided for in paragraph 8). 
 
13.    Entire Agreement. This letter and the Exhibit attached hereto contain all of the terms of your employment with the Company and supersede any prior understandings or
agreements, whether oral or written, between you and the Company. 
 
14.    Amendment and Governing Law. This letter agreement may not be amended or modified except by an express written agreement signed by you and a duly authorized officer of the Company. The terms
of this letter agreement and the resolution of any disputes will be governed by California law. 
 
15.    Start Date. Your employment with the Company will commence on or before March 20, 2003. 
 
We hope that you find the foregoing terms acceptable. You may indicate your agreement with these terms and
accept this offer by signing and dating the enclosed duplicate original of this letter agreement and returning it to me. This offer, if not accepted, will expire at the close of business on March 19, 2003. 
 
As required by law, your employment with the Company is
contingent upon your providing legal proof of your identity and authorization to work in the United States. 
 
Tom, we look forward with enthusiasm to your acceptance of our offer and to the commencement of your duties with the Company.

 
If you have any questions, please call me at
(858) 200-3830. 
 

	 Very truly yours,
  
 ACLARA BioSciences, Inc.

	
	 By:
	 	  
 /s/    Kevin Tang        

	 	 	 

 
 
 

3 

	 
	
	 	 	 
	 	 	 Kevin Tang, for the Board of Directors

 

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I have read and accept this
employment offer: 
 

	
	  
 /s/    Thomas Klopack        

	 Thomas Klopack

 
Dated: March 19,
2003 
 

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