Who
John D. Duke
Chief Executive Officer
Company insider
Files Form 4 as: Chief Executive Officer, Harvard Bioscience.
In numbers
- Trades disclosed
- 6
- Buys
- 1
- Sells
- 0
- Bought
- $50K
- Sold
- $0
- Companies
- 1
- Companies where not an officer
- 0
- First trade
- 8 Aug 2025
- Last trade
- 20 Mar 2026
- Last filed
- 23 Mar 2026
Companies traded
Activity over time
1 Mar – 1 Oct
Buys above the line, sells below, each month.
Every trade
| Traded | Company | What | Amount | |
|---|---|---|---|---|
| 20 Mar 2026filed 23 Mar 2026 | HBIO Harvard BioscienceLife-science tools | SEC FORM 4 Code A | —75,000 at $0.00 | filing |
| 20 Mar 2026filed 23 Mar 2026 | HBIO Harvard BioscienceLife-science tools | SEC FORM 4 Code A | —75,000 at $0.00 | filing |
| 16 Mar 2026filed 17 Mar 2026 | HBIO Harvard BioscienceLife-science tools | SEC FORM 4 Bought | $25K5,000 at $5.01 | filing |
| 16 Mar 2026filed 17 Mar 2026 | HBIO Harvard BioscienceLife-science tools | SEC FORM 4 Bought | $25K5,000 at $5.01 | filing |
| 8 Aug 2025filed 11 Aug 2025 | HBIO Harvard BioscienceLife-science tools | SEC FORM 4 Code A | —500,000 at $0.00 | filing |
| 8 Aug 2025filed 11 Aug 2025 | HBIO Harvard BioscienceLife-science tools | SEC FORM 4 Code A | —500,000 at $0.00 | filing |
News
No headline names them, or the companies they trade most, lately.