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Duke John D

Chief Executive OfficerDirectorCIK 0002071593

Largest Purchase

$25.1K

HARVARD BIOSCIENCE INC (HBIO)

Mar 17

Profile

Filings
3
Buy transactions
1
Sell transactions
0
Companies
1
Active
2025–2026

Duke John D, Chief Executive Officer, Director, accounts for 3 disclosed filings worth $25.1K, all concentrated in HARVARD BIOSCIENCE INC (HBIO), active 2025–2026. The record is heavily weighted toward buying, with $25.1K in purchases against $0 in sales. The largest single open-market purchase on record is $25.1K in HARVARD BIOSCIENCE INC. Data is sourced from official SEC Form 3, 4, and 5 filings.

Trading History

3 loaded
Mar 23HBIO
HARVARD BIOSCIENCE INC
Duke John DChief Executive Officer, DirectorGrant$0
Mar 17HBIO
HARVARD BIOSCIENCE INC
Duke John DChief Executive Officer, DirectorBuy$25.1K
Aug 11HBIO
HARVARD BIOSCIENCE INC
Duke John DChief Executive Officer, DirectorGrant$0

3 filings