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| Keyboard |
| Harvard Bioscience Inc | |
|---|---|
| Ticker | HBIO |
| CIK # | 0001123494 |
| CUSIP | 416906105 |
| Sector | Life Sciences - Laboratory Analytical Instruments |
| Address | 84 October Hill Rd, Holliston, MA 01746 |
| Source | [EDGAR] |
| CIK | Filing | 2011 - 2026 |
|---|---|---|
| [0001123494] | 10-K | |
| [0001123494] | 10-Q | |
| [0001123494] | 3 | |
| [0001123494] | 4 | |
| [0001123494] | 5 | |
| [0001123494] | 8-K | |
| [0001123494] | SC 13D | |
| [0001123494] | SC 13G |
| Insider Transaction (Form 3/4/5) | Date | Action | Shares | Price | Value ($) |
|---|---|---|---|---|---|
|
Duke John D
Common Stock
|
2026-03-20 | Grant | 75,000 | $0.00 | |
|
Snider William
Common Stock
|
2026-03-17 | Buy | 8,475 | $4.85 | 41,104 |
|
Denelsky Stephen J
Common Stock
|
2026-03-17 | Buy | 10,000 | $4.87 | 48,700 |
|
Snider William
Common Stock
|
2026-03-16 | Buy | 12,525 | $4.99 | 62,500 |
|
Duke John D
Common Stock
|
2026-03-16 | Buy | 5,000 | $5.01 | 25,050 |
|
Snider William
Common Stock
|
2025-12-17 | Grant | 110,000 | $0.00 | |
|
Denelsky Stephen J
Common Stock
|
2025-09-05 | Grant | 110,000 | $0.00 | |
|
Green James W
Common Stock
|
2025-08-15 | Disposed to issuer | 66,036 | $0.00 | |
|
Green James W
Common Stock
|
2025-08-15 | Tax withheld | 11,540 | $0.53 | 6,116 |
|
Green James W
Common Stock
|
2025-08-15 | Disposed to issuer | 119,332 | $0.00 | |
|
Green James W
Common Stock
|
2025-08-15 | Disposed to issuer | 49,048 | $0.00 | |
|
Green James W
Common Stock
|
2025-08-15 | Tax withheld | 33,200 | $0.53 | 17,596 |
|
Green James W
Common Stock
|
2025-08-15 | Disposed to issuer | 113,366 | $0.00 | |
|
Duke John D
Common Stock
|
2025-08-08 | Grant | 500,000 | $0.00 | |
|
Duke John D
Common Stock
|
2025-08-08 | Grant | 500,000 | $0.00 | |
|
Benson Seth Benjamin
Common Stock
|
2025-07-16 | Grant | 110,000 | $0.00 | |
|
Gagnon Robert E
Common Stock
|
2025-07-16 | Grant | 110,000 | $0.00 | |
|
Eade Katherine A
Common Stock
|
2025-07-16 | Grant | 110,000 | $0.00 | |
|
Frost Mark T
Common Stock
|
2025-05-12 | Grant | 100,000 | $0.00 | |
|
Green James W
Common Stock
|
2025-03-19 | Tax withheld | 38,413 | $0.69 | 26,505 |
| showing 20 of 200 most recent transactions | |||||
| 13F Ownership Over Time | Holders | Shares Held |
|---|---|---|
| 2026-03-31 | 36 | 1,585,428 |
| 2025-12-31 | 63 | 17,668,529 |
| 2025-09-30 | 62 | 16,681,376 |
| 2025-06-30 | 71 | 19,034,632 |
| 2025-03-31 | 92 | 25,651,848 |
| 2024-12-31 | 96 | 30,073,594 |
| 2024-09-30 | 95 | 30,446,213 |
| 2024-06-30 | 101 | 30,867,482 |
| 2024-03-31 | 91 | 31,688,298 |
| 2023-12-31 | 94 | 32,329,098 |
| 2023-09-30 | 96 | 31,906,465 |
| 2023-06-30 | 101 | 31,388,134 |
| Form 13F Holdings | ||||
|---|---|---|---|---|
| Firm | Period | DFND | Voting | Shares |
| Williams & Novak LLC | [2026-06-30] | SOLE | 0 | 20,949 |
| Brown Shipley& Co Ltd | [2026-06-30] | SOLE | 478 | 478 | Prev | Page 1 | Next |