Harvard Bioscience Inc. (HBIO)
Harvard Bioscience Inc. (HBIO) Insider Trading
Directors, officers and holders of more than 10% of HBIO report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 33 most recent of 33 transactions on file: 5 with code P, 0 with code S and 28 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Jun 9, 2026 | Benson Seth Benjamin | Director | A Award | 16,556 | Not measured | Not measured |
| Jun 9, 2026 | Eade Katherine A. | Director | A Award | 16,556 | Not measured | Not measured |
| Jun 9, 2026 | Snider William | Director | A Award | 16,556 | Not measured | Not measured |
| Jun 9, 2026 | DENELSKY STEPHEN J | Director | A Award | 16,556 | Not measured | Not measured |
| Jun 9, 2026 | Gagnon Robert E. | Director | A Award | 16,556 | Not measured | Not measured |
| Mar 20, 2026 | Frost Mark T | Chief Financial Officer | A Award | 30,000 | Not measured | Not measured |
| Mar 20, 2026 | Duke John D | Chief Executive Officer | A Award | 75,000 | Not measured | Not measured |
| Mar 17, 2026 | DENELSKY STEPHEN J | Director | P Purchase | 10,000 | $4.87 | $48,700 |
| Mar 17, 2026 | Snider William | Director | P Purchase | 8,475 | $4.85 | $41,104 |
| Mar 16, 2026 | Snider William | Director | P Purchase | 12,525 | $4.99 | $62,500 |
| Mar 16, 2026 | Frost Mark T | Chief Financial Officer | P Purchase | 5,000 | $5.00 | $25,000 |
| Mar 16, 2026 | Duke John D | Chief Executive Officer | P Purchase | 5,000 | $5.01 | $25,050 |
| Dec 17, 2025 | Snider William | Director | A Award | 11,000 | Not measured | Not measured |
| Sep 5, 2025 | DENELSKY STEPHEN J | Director | A Award | 11,000 | Not measured | Not measured |
| Aug 15, 2025 | Green James W | Chief Executive Officer | F Tax Payment | 1,154 | $5.29 | $6,105 |
| Aug 15, 2025 | Green James W | Chief Executive Officer | D Disposition | 11,337 | Not measured | Not measured |
| Aug 15, 2025 | Green James W | Chief Executive Officer | D Disposition | 4,905 | Not measured | Not measured |
| Aug 15, 2025 | Green James W | Chief Executive Officer | F Tax Payment | 3,320 | $5.29 | $17,563 |
| Aug 15, 2025 | Green James W | Chief Executive Officer | D Disposition | 11,933 | Not measured | Not measured |
| Aug 15, 2025 | Green James W | Chief Executive Officer | D Disposition | 6,604 | Not measured | Not measured |
| Aug 8, 2025 | Duke John D | Chief Executive Officer | A Award | 50,000 | Not measured | Not measured |
| Aug 8, 2025 | Duke John D | Chief Executive Officer | A Award | 50,000 | Not measured | Not measured |
| Jul 16, 2025 | Gagnon Robert E. | Director | A Award | 11,000 | Not measured | Not measured |
| Jul 16, 2025 | Eade Katherine A. | Director | A Award | 11,000 | Not measured | Not measured |
| Jul 16, 2025 | Benson Seth Benjamin | Director | A Award | 11,000 | Not measured | Not measured |
| May 12, 2025 | Frost Mark T | Chief Financial Officer | A Award | 10,000 | Not measured | Not measured |
| Mar 19, 2025 | Cote Jennifer | Chief Financial Officer | F Tax Payment | 569 | $6.89 | $3,916 |
| Mar 19, 2025 | Green James W | Chief Executive Officer | F Tax Payment | 3,841 | $6.89 | $26,451 |
| Dec 31, 2024 | Green James W | Chief Executive Officer | D Disposition | 14,537 | Not measured | Not measured |
| Dec 29, 2024 | Cote Jennifer | Chief Financial Officer | F Tax Payment | 380 | $19.80 | $7,518 |
| Dec 29, 2024 | Cote Jennifer | Chief Financial Officer | F Tax Payment | 473 | $19.80 | $9,367 |
| Dec 29, 2024 | Green James W | Chief Executive Officer | F Tax Payment | 2,531 | $19.80 | $50,114 |
| Dec 29, 2024 | Green James W | Chief Executive Officer | F Tax Payment | 5,692 | $19.80 | $112,692 |
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.