X0306 4 2015-12-02 0 0001123494 HARVARD BIOSCIENCE INC HBIO 0001124927 UVEGES GEORGE 207 WILLOW BROOK DRIVE WAYLAND MA 01778-5124 1 0 0 0 Common Stock 2015-12-02 4 M 0 32928 3.03 A 94683 D Common Stock 2015-12-02 4 F 0 30512 3.27 D 64171 D Common Stock 2015-12-03 4 P 0 3000 3.32 A 67171 D Stock option (right to buy) 3.03 2015-12-02 4 M 0 32928 0.00 D 2009-03-24 2016-03-24 Common Stock, par value $0.01 per share 32928 0 D Includes (a) a deferred stock award of 14,400 restricted stock units which fully vest on the earlier to occur of (i) the date of the Issuer's next Annual Meeting of Stockholders after June 4, 2015, immediately prior to the commencement of such meeting, and (ii) June 4, 2016.; and (b) 80,283 shares of common stock held by the Reporting Person. Represents the number of shares of common stock that the Reporting Person attested to the ownership thereof in accordance with the Issuer's Third Amended and Restated 2000 Stock Option and Incentive Plan, as amended, in connection with the payment of the option exercise price. With respect to each option exercise, the Issuer only delivered the net amount of the option shares (after reducing the option shares by the amount of shares subject to such attestation) to the Reporting Person and such attestation shares were not sold by the Reporting Person or delivered to the Issuer. Nevertheless, the SEC deems such exercise and related attestation to be a disposition of shares for purposes of Section 16(a) of the Securities Exchange Act of 1934. Includes (a) a deferred stock award of 14,400 restricted stock units which fully vest on the earlier to occur of (i) the date of the Issuer's next Annual Meeting of Stockholders after June 4, 2015, immediately prior to the commencement of such meeting, and (ii) June 4, 2016.; and (b) 49,771 shares of common stock held by the Reporting Person. Includes (a) a deferred stock award of 14,400 restricted stock units which fully vest on the earlier to occur of (i) the date of the Issuer's next Annual Meeting of Stockholders after June 4, 2015, immediately prior to the commencement of such meeting, and (ii) June 4, 2016.; and (b) 52,771 shares of common stock held by the Reporting Person. Represent the exercise of stock options granted pursuant to the Issuer's 2000 Stock Option and Incentive Plan, as amended. Exhibit List: Exhibit 24 - Limited Power of Attorney. This form is signed under power of attorney. /s/ Chad Porter, by power of attorney 2015-12-03