John D. Duke

Insider Reports History

Location
Holliston, MA
Signature
/s/ John D Duke
All insider transactions
Transactions in reports broken out by “transaction date” reported in original SEC filing, see here for transactions aggregated across transaction date

Holdings reported by John D. Duke:

Company Role Class Num Shares Value Price $ Report Date Ownership
HARVARD BIOSCIENCE INC Chief Executive Officer, Director Common Stock 1,000,000 $370,000 $0.3700 08 Aug 2025 Direct

Insider Reports Filed by John D. Duke

Symbol Company Period Transactions Value $ Form Type Role Filing Time
HBIO HARVARD BIOSCIENCE INC 08 Aug 2025 2 $0 4 Chief Executive Officer, Director 11 Aug 2025, 21:09
HBIO HARVARD BIOSCIENCE INC 02 Jun 2025 0 $0 3 Director 09 Jun 2025, 21:08