Insider · CIK 0002071593

Duke John D

Reports to the SEC for 1 company · HOLLISTON, MA

Transactions

Companies

Filings

CIK

0002071593

Forms 4 and 5

Insider transactions

4 trades

Date	Company	Role	Code	Shares	Price	Value	Shares after
2026-03-20	HBIOHARVARD BIOSCIENCE INCA Award	Director, Chief Executive Officer	AAward	+75K sh	—	—	180,000
2026-03-16	HBIOHARVARD BIOSCIENCE INCP Purchase	Director, Chief Executive Officer	PPurchase	+5,000 sh	$5.01	+$25.1K	105,000
2025-08-08	HBIOHARVARD BIOSCIENCE INCA Award	Director, Chief Executive Officer	AAward	+500K sh	—	—	500,000
2025-08-08	HBIOHARVARD BIOSCIENCE INCA Award	Director, Chief Executive Officer	AAward	+500K sh	—	—	1,000,000

C/O HARVARD BIOSCIENCE, INC. 84 OCTOBER HILL ROAD

HOLLISTON, MA, 01746