X0306 4 2020-08-06 0 0001123494 HARVARD BIOSCIENCE INC HBIO 0001138315 KENNEDY JOHN F C/O HARVARD BIOSCIENCE, INC. 84 OCTOBER HILL ROAD HOLLISTON MA 01746 1 0 0 0 Common Stock 2020-08-06 4 G 0 7500 0.00 D 329539 D This transaction involved a gift of securities by the Reporting Person. Disposition price is not applicable as this transaction was a bona fide gift. Includes (a) an award of 28,100 restricted stock units that fully vest on the earlier to occur of (i) the date of the Issuer's next Annual Meeting of Stockholders after June 11, 2020, immediately prior to the commencement of such meeting, and (ii) June 18, 2021, (b) an award of 8,900 remaining unvested restricted stock units vesting in equal quarterly installments on September 30, 2020 and December 31, 2020, and (c) 292,539 shares of common stock held by the Reporting Person. This form has been signed under power of attorney. /s/ David Sirois, by power of attorney 2020-08-10