Harvard Bioscience, Inc. (HBIO) ownership: Top institutional holder: WEBER CAPITAL MANAGEMENT LLC /ADV ($2.14M). Insider activity: Net Seller (5 buys, 15 sells). SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| WEBER CAPITAL MANAGEMENT LLC /ADV | 3200380.00 | $2.14M | 2025-12-31 |
| VANGUARD GROUP INC | 1923275.00 | $1.29M | 2025-12-31 |
| ACADIAN ASSET MANAGEMENT LLC | 1772627.00 | $1.18M | 2025-12-31 |
| RENAISSANCE TECHNOLOGIES LLC | 1021241.00 | $683006.00 | 2025-12-31 |
| TWO SIGMA INVESTMENTS, LP | 1012417.00 | $677104.00 | 2025-12-31 |
| TWO SIGMA ADVISERS, LP | 878556.00 | $587578.00 | 2025-12-31 |
| Meros Investment Management, LP | 118522.00 | $577205.00 | 2026-03-31 |
| NANO CAP NEW MILLENNIUM GROWTH FUND L P | 117500.00 | $572225.00 | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-06-09 | |
| Sell | null | 2026-06-09 | |
| Sell | null | 2026-06-09 | |
| Sell | null | 2026-06-09 | |
| Sell | null | 2026-06-09 | |
| Sell | null | 2026-03-20 | |
| Sell | null | 2026-03-20 | |
| Sell | null | 2026-03-20 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.