Harvard BioscienceHBIO
13F holders, Q3 2025 (September 30)60holders −7
5new positions
12sold out
2famous investors
$0.44avg. 13F price*
At the end of Q3 2025, 60 institutions reported holding Harvard Bioscience Inc. (HBIO) in their 13F filings, down 7 from Q2 2025. 5 opened new positions and 12 sold out. The largest holders were AMH Equity Ltd ($1.8M), Harvey Partners, LLC ($899K) and Vanguard Group Inc. ($813K). 2 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Harvard Bioscience Inc.
- CUSIP
- 416906105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 5 | $46K |
| Exits | 12 | $170K |
All 13F filers, Q2 2025 → Q3 2025: 1,505,220 shares bought and 3,790,769 shares sold, net −2,285,549 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 60 holders
| AMH Equity Ltd | 2.23% | Add +15.4% | 4,047,535 | $1.8M |
| Harvey Partners, LLC | 0.08% | Reduce -4.3% | 2,050,000 | $899K |
| Vanguard Group Inc. | 0.00% | Reduce -0.1% | 1,851,846 | $813K |
| Acadian Asset Management LLC | 0.00% | Add +2.9% | 1,069,690 | $467K |
| Meros Investment Management, LP | 0.17% | Reduce -0.2% | 918,259 | $403K |
| Renaissance Technologies | 0.00% | Add +9.7% | 868,478 | $381K |
| BlackRock, Inc. | 0.00% | Reduce -44.3% | 621,367 | $272K |
| Granahan Investment Management, LLC | 0.01% | Reduce -59.8% | 603,519 | $265K |
| Millennium Management | 0.00% | Reduce -10.7% | 571,703 | $251K |
| Dimensional Fund Advisors LP | 0.00% | Reduce -56.0% | 496,144 | $218K |
| Acuitas Investments, LLC | 0.14% | No change | 491,092 | $215K |
| Two Sigma Investments, LP | 0.00% | Add +139.7% | 474,157 | $208K |
| Geode Capital Management, LLC | 0.00% | Add +0.4% | 441,870 | $194K |
| Williams & Novak, LLC | 0.09% | Add +158.5% | 275,500 | $121K |
| Pasadena Private Wealth, LLC | 0.02% | No change | 243,911 | $107K |
| Two Sigma Advisers, LP | 0.00% | Add +419.0% | 243,156 | $107K |
| RBF Capital, LLC | 0.00% | No change | 160,000 | $70K |
| State Street Corp. | 0.00% | No change | 149,352 | $65K |
| Northern Trust Corp. | 0.00% | Reduce -23.1% | 145,173 | $64K |
| Assenagon Asset Management S.A. | 0.00% | Add +278.3% | 139,220 | $61K |
| Bank of New York Mellon Corp | 0.00% | No change | 126,223 | $55K |
| Corsair Capital Management, L.P. | 0.01% | New | 100,000 | $44K |
| Susquehanna International Group, LLP | 0.00% | Reduce -40.0% | 84,349 | $37K |
| FMR LLC | 0.00% | Reduce -36.9% | 45,593 | $20K |
| Jane Street Group, LLC | 0.00% | Reduce -42.6% | 40,564 | $18K |
| Gabelli Funds LLC | 0.00% | Reduce -22.0% | 39,000 | $17K |
| Qube Research & Technologies Ltd | 0.00% | Reduce -27.2% | 37,255 | $16K |
| Abel Hall, LLC | 0.01% | Reduce -13.7% | 32,206 | $14K |
| Callan Family Office, LLC | 0.00% | No change | 29,844 | $13K |
| Greenwood Capital Associates LLC | 0.00% | No change | 27,754 | $12K |
| Brighton Jones LLC | 0.00% | Reduce -0.3% | 25,007 | $11K |
| Morgan Stanley | 0.00% | Reduce -43.5% | 16,703 | $7K |
| Point72 Asia (Singapore) Pte. Ltd. | 0.00% | Reduce -46.0% | 14,697 | $6K |
| Legato Capital Management LLC | 0.00% | No change | 14,005 | $6K |
| Certuity, LLC | 0.00% | Reduce -7.0% | 13,677 | $6K |
| UBS Group AG | 0.00% | Reduce -98.3% | 13,279 | $6K |
| Goldman Sachs Group Inc. | 0.00% | Reduce -93.9% | 12,694 | $6K |
| Bridgeway Capital Management, LLC | 0.00% | No change | 12,500 | $5K |
| Ethic Inc. | 0.00% | Reduce -4.4% | 12,439 | $5K |
| Balboa Wealth Partners | 0.00% | No change | 11,750 | $5K |
| SBI Securities Co., Ltd. | 0.00% | No change | 8,670 | $4K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -45.8% | 8,462 | $4K |
| PNC Financial Services Group, Inc. | 0.00% | No change | 7,544 | $3K |
| Royal Bank of Canada | 0.00% | Add +4617.2% | 7,406 | $3K |
| Brown Shipley& Co Ltd | 0.00% | No change | 4,783 | $2K |
| Nisa Investment Advisors, LLC | 0.00% | No change | 2,289 | $1K |
| Simplex Trading, LLC | 0.00% | New | 2,749 | $1K |
| Northwestern Mutual Wealth Management Co. | 0.00% | New | 1,900 | $833 |
| Group One Trading LLC | 0.00% | Reduce -62.3% | 1,813 | $795 |
| Federated Hermes, Inc. | 0.00% | No change | 1,656 | $726 |
| JPMorgan Chase & Co. | 0.00% | New | 1,637 | $718 |
| Citigroup Inc. | 0.00% | Reduce -89.1% | 1,509 | $661 |
| EverSource Wealth Advisors, LLC | 0.00% | Reduce -11.5% | 1,219 | $535 |
| Rialto Wealth Management, LLC | 0.00% | No change | 1,081 | $475 |
| BNP Paribas Financial Markets | 0.00% | Reduce -61.2% | 680 | $298 |
| Bank of America Corp. | 0.00% | Reduce -93.3% | 442 | $193 |
| Optiver Holding B.V. | 0.00% | New | 14 | $6 |
| Barclays PLC | 0.00% | Reduce -99.9% | 1 | $0 |
| Cwm, LLC | 0.00% | Reduce -97.8% | 73 | $0 |
| Financial Connections Group, Inc. | 0.00% | No change | 300 | $0 |
"% of holder's portfolio" is HBIO's weight in each manager's 13F, not the share of Harvard Bioscience Inc. the manager owns.