Harvard Bioscience Inc
HBIO- Exchange
- Nasdaq
- Industry
- Laboratory Analytical Instruments
- SEC CIK
- 0001123494
No open-market purchases or sales by Harvard Bioscience Inc insiders were filed in the last 90 days; 37 institutions reported holding it in 13F filings for Q2 2026, worth $10.3M in total; no superinvestor holds it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Harvard Bioscience Inc insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 0 filings
- Insiders trading
- 0
- Net value
- $0
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Harvard Bioscience Inc, current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Eade Katherine A. | Director | 58,669 | Jun 12, 2026 | 1 |
| Denelsky Stephen J | Director | 37,556 | Jun 11, 2026 | 3 |
| Snider William | Director | 48,556 | Jun 11, 2026 | 3 |
| Gagnon Robert E. | Director | 27,556 | Jun 11, 2026 | 1 |
| Benson Seth Benjamin | Director | 27,556 | Jun 11, 2026 | 1 |
| Frost Mark T | Chief Financial Officer | 47,500 | Apr 1, 2026 | 2 |
| Duke John D | Chief Executive Officer | 180,000 | Mar 23, 2026 | 2 |
| Green James W | Director | 2,452,566 | Aug 19, 2025 | 0 |
| Cote Jennifer | Chief Financial Officer | 159,019 | Mar 21, 2025 | 0 |
| Edrick Alan I | Director | 273,911 | May 23, 2024 | 0 |
| Loy Bertrand | Director | 56,575 | May 23, 2024 | 0 |
| Loewald Thomas W | Director | 295,311 | May 23, 2024 | 0 |
| Rossi Michael A. | Chief Financial Officer | 260,540 | Jan 3, 2023 | 0 |
| Olson Kenneth Fletcher | Chief Operating Officer | 155,595 | Dec 30, 2021 | 0 |
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Apr 1, 2026 (view filing) | Mar 16 | 16 daysLate | Frost Mark TChief Financial Officer | PPurchase | +5.00K | $5.00 | +$25.0K | +40.0%17.5K after | |
| Mar 18, 2026 (view filing) | Mar 17 | 1 day | Denelsky Stephen JDirector | PPurchase | +10.0K | $4.87 | +$48.7K | +90.9%21.0K after | |
| Mar 18, 2026 (view filing) | Mar 16-17 | 2 days | Snider WilliamDirector | PPurchase | +21.0K | $4.93 | +$103.6K | +190.9%32.0K after | 2 lots |
| Mar 17, 2026 (view filing) | Mar 16 | 1 day | Duke John DChief Executive Officer | PPurchase | +5.00K | $5.01 | +$25.1K | +5.0%105.0K after | |
| Jun 14, 2024 (view filing) | Jun 13 | 1 day | Green James WChief Executive Officer | PPurchase | +10.0K | $2.91 | +$29.1K | +0.3%3.11M after | |
| Jun 7, 2024 (view filing) | Jun 6 | 1 day | Green James WChief Executive Officer | PPurchase | +20.0K | $3.07 | +$61.4K | +0.6%3.10M after | |
| Aug 21, 2023 (view filing) | Aug 17 | 4 days | Green James WChief Executive Officer | PPurchase | +25.0K | $4.38 | +$109.5K | +0.9%2.86M after | |
| Mar 16, 2023 (view filing) | Mar 14-15 | 2 days | Edrick Alan IDirector | PPurchase | +30.0K | $2.64 | +$79.3K | +17.4%202.5K after | 2 lots |
| Mar 15, 2023 (view filing) | Mar 14-15 | 1 day | Green James WChief Executive Officer | PPurchase | +40.0K | $2.64 | +$105.4K | +1.4%2.89M after | 2 lots |
| Dec 2, 2022 (view filing) | Nov 30-Dec 1 | 2 days | Green James WChief Executive Officer | PPurchase | +30.0K | $2.51 | +$75.3K | +1.3%2.28M after | 2 lots |
| Aug 29, 2022 (view filing) | Aug 26 | 3 days | Loy BertrandDirector | PPurchase | +9.29K | $3.41 | +$31.7K | +2.4%399.7K after | |
| Aug 26, 2022 (view filing) | Aug 24-25 | 2 days | Loy BertrandDirector | PPurchase | +25.5K | $3.27 | +$83.4K | +7.0%390.4K after | 2 lots |
| Aug 24, 2022 (view filing) | Aug 22-23 | 2 days | Loy BertrandDirector | PPurchase | +13.9K | $3.21 | +$44.4K | +3.9%364.8K after | 2 lots |
| Aug 22, 2022 (view filing) | Aug 18-19 | 4 days | Loy BertrandDirector | PPurchase | +10.8K | $3.27 | +$35.2K | +3.2%351.0K after | 2 lots |
| Aug 18, 2022 (view filing) | Aug 17 | 1 day | Green James WChief Executive Officer | PPurchase | +40.0K | $3.19 | +$127.6K | +1.8%2.25M after | |
| Jun 17, 2022 (view filing) | Jun 15 | 2 days | Green James WChief Executive Officer | PPurchase | +30.0K | $3.71 | +$111.3K | +1.3%2.30M after | |
| May 10, 2022 (view filing) | May 6-9 | 4 days | Green James WChief Executive Officer | PPurchase | +40.0K | $3.69 | +$147.4K | +1.8%2.32M after | 2 lots |
| Aug 25, 2021 (view filing) | Aug 23 | 2 days | Green James WChief Executive Officer | SSale | −48.2K | $8.02 | −$386.4K | −2.3%2.09M after |