EXHIBIT 10.26

DEFERRED STOCK AWARD AGREEMENT

UNDER THE HARVARD BIOSCIENCE, INC. SECOND
AMENDED AND RESTATED 2000

STOCK OPTION AND INCENTIVE PLAN, AS AMENDED



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|Name of Grantee: |  |  |  | 



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|Number of Restricted Stock Units: |  |  |  | 



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|Grant Date: |  |  |  | 

Pursuant to the Harvard Bioscience, Inc. Second Amended and Restated 2000 Stock Option and Incentive
Plan, as amended through the date hereof (the Plan), Harvard Bioscience, Inc. (the Company) hereby grants the number of Restricted Stock Units (RSUs) specified above (the Award) to the Grantee named
above, subject to the terms of the Plan and this Award Agreement. The Award represents a promise to pay to the Grantee one share of Common Stock, par value $0.01 per share (the Stock) of the Company for each RSU, subject to the
restrictions and conditions set forth herein and in the Plan.

1.    Restrictions.

(a)    No Voting Rights and Dividends. Until such time as the RSUs are paid to the Grantee in shares of Stock,
the Grantee shall have no voting rights and no rights to any dividends or other distributions with respect to the RSUs.

(b)    Restrictions on Transfer. The RSUs granted pursuant to this Agreement may not be sold, assigned,
transferred, pledged or otherwise encumbered or disposed of prior to vesting.

2.    Vesting of
Restricted Stock Units.

(a)    Form of Payment. Subject to the Grantee being employed by the
Company or its Subsidiaries on each vesting date, the restrictions and conditions in Paragraph 1 of this Agreement with respect to such RSU shall lapse and such RSU shall become payable to the Grantee in shares of Stock on the relevant vesting
date specified below:



| |  |              |  |  |  |                    |  | 
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| |  | Vesting Date |  |  |  | Vesting Percentage |  | 
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| |  |              |  |  |  |                    |  | 
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(b)    The Grantees rights to all RSUs granted herein and not yet vested in
accordance with the provisions of Paragraph 2(a) shall automatically terminate upon the Grantees termination of employment, voluntarily or involuntarily, with the Company and its Subsidiaries for any reason (including death).

(c)    Notwithstanding anything to the contrary in this Agreement, to the extent the Grantee is a party to another
agreement or arrangement with the Company that provides accelerated vesting of RSUs or all equity awards in general in the event of certain types of termination, a change of control of the Company or any other applicable vesting-related events, the
accelerated terms of such other agreement or arrangement shall control.

3.    Receipt of Stock Upon
Vesting. Upon the vesting of the RSUs as provided in Paragraph 2(a), the Grantee shall receive one share of Stock for each RSU vested. Shares of Stock acquired pursuant to this Award shall be issued and delivered to the Grantee either in actual
stock certificates or by electronic book entry, subject to tax withholding as provided in Paragraph 6 below.



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4.    Incorporation of Plan. Notwithstanding anything herein to
the contrary, this Agreement shall be subject to and governed by all the terms and conditions of the Plan, including the powers of the Administrator set forth in the Plan. Capitalized terms in this Agreement shall have the meaning specified in the
Plan, unless a different meaning is specified herein.

5.    Transferability. This Agreement is
personal to the Grantee, is non-assignable and is not transferable in any manner, by operation of law or otherwise, other than by will or the laws of descent and distribution.

6.    Tax Withholding. The tax withholding obligation shall be satisfied by the Company withholding the required minimum amount from shares of Stock to be issued to the Grantee.

7.    Dividend Equivalents.

(a)    If on any date the Company shall pay any cash dividend on shares of Stock of the Company, the number of RSUs
credited to the Grantee shall, as of such date, be increased by an amount determined by the following formula:

W = (X
multiplied by Y) divided by Z, where:

W = the number of additional RSUs to be credited to the Grantee on such dividend payment
date;

X = the aggregate number of vested RSUs credited to the Grantee as of the record date of the dividend;

Y = the cash dividend per share amount; and

Z = the Fair Market Value per share of Stock (as determined under the Plan) on the dividend payment date.

(b)    In the case of a dividend paid on Stock in the form of Stock, including without limitation a distribution of Stock by reason of a stock dividend, stock split or otherwise, the
number of RSUs credited to the Grantee shall be increased by a number equal to the product of (i) the aggregate number of RSUs that have been awarded to the Grantee through the related dividend record date, and (ii) the number of shares of
Stock (including any fraction thereof) payable as dividend on one share of Stock. Any additional RSUs shall be subject to the vesting and restrictions of this Agreement in the same manner and for so long as the RSUs granted pursuant to this
Agreement to which they relate remain subject to such vesting and restrictions, and shall be promptly forfeited to the Company if and when such RSUs are so forfeited.

8.    No Obligation to Continue Employment. Neither the Company nor any Subsidiary is obligated by or as a result of the Plan or this Agreement to continue the Grantee in
employment and neither the Plan nor this Agreement shall interfere in any way with the right of the Company or any Subsidiary to terminate the employment of the Grantee at any time.



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9.    Notices. Notices hereunder shall be mailed or delivered to
the Company at its principal place of business and shall be mailed or delivered to the Grantee at the address on file with the Company or, in either case, at such other address as one party may subsequently furnish to the other party in writing.



HARVARD BIOSCIENCE, INC.By:Name:Title:


The foregoing Agreement is hereby accepted and the terms and conditions thereof hereby agreed to by the undersigned.



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|Dated: |  |  |  |                            
|       |  |  |  | Grantees Signature        
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|       |  |  |  | Grantees name and address:
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