Harvard BioscienceHBIO
13F holders, Q4 2025 (December 31)63holders +3
9new positions
7sold out
5famous investors
$0.67avg. 13F price*
At the end of Q4 2025, 63 institutions reported holding Harvard Bioscience Inc. (HBIO) in their 13F filings, up 3 from Q3 2025. 9 opened new positions and 7 sold out. The largest holders were Weber Capital Management LLC ($2.1M), Vanguard Group Inc. ($1.3M) and Acadian Asset Management LLC ($1.2M). 5 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Mario Gabelli (0.0% of GAMCO Investors'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 Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 9 | $563K |
| Exits | 7 | $1.2M |
All 13F filers, Q3 2025 → Q4 2025: 5,075,967 shares bought and 3,500,584 shares sold, net +1,575,383 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 63 holders
| Weber Capital Management LLC | 2.02% | — | 3,200,380 | $2.1M |
| Vanguard Group Inc. | 0.00% | Add +3.9% | 1,923,275 | $1.3M |
| Acadian Asset Management LLC | 0.00% | Add +65.7% | 1,772,627 | $1.2M |
| Meros Investment Management, LP | 0.32% | Add +32.6% | 1,217,628 | $814K |
| Corsair Capital Management, L.P. | 0.12% | Add +1008.7% | 1,108,692 | $741K |
| Renaissance Technologies | 0.00% | Add +17.6% | 1,021,241 | $683K |
| Two Sigma Investments, LP | 0.00% | Add +113.5% | 1,012,417 | $677K |
| Two Sigma Advisers, LP | 0.00% | Add +261.3% | 878,556 | $588K |
| BlackRock, Inc. | 0.00% | Add +0.1% | 622,296 | $416K |
| Nano Cap New Millennium Growth Fund L P | 0.34% | — | 600,000 | $401K |
| Millennium Management | 0.00% | Reduce -4.5% | 546,067 | $365K |
| Geode Capital Management, LLC | 0.00% | Add +4.3% | 460,793 | $308K |
| Jane Street Group, LLC | 0.00% | Add +923.5% | 415,159 | $278K |
| Portolan Capital Management, LLC | 0.01% | New | 409,650 | $274K |
| Williams & Novak, LLC | 0.18% | Add +26.6% | 348,800 | $233K |
| Citigroup Inc. | 0.00% | Add +12744.8% | 193,828 | $130K |
| Essex Investment Management Co. LLC | 0.02% | New | 184,678 | $124K |
| RBF Capital, LLC | 0.00% | No change | 160,000 | $107K |
| State Street Corp. | 0.00% | No change | 149,352 | $100K |
| Susquehanna International Group, LLP | 0.00% | Add +65.8% | 139,869 | $94K |
| Assenagon Asset Management S.A. | 0.00% | Reduce 0.0% | 139,218 | $93K |
| Bank of New York Mellon Corp | 0.00% | No change | 126,223 | $84K |
| Northern Trust Corp. | 0.00% | Reduce -36.6% | 91,973 | $62K |
| Virtu Financial LLC | 0.00% | New | 59,508 | $40K |
| GAMCO Investors | 0.00% | New | 57,000 | $38K |
| Goldman Sachs Group Inc. | 0.00% | Add +291.9% | 49,751 | $33K |
| Pasadena Private Wealth, LLC | 0.00% | Reduce -81.5% | 45,000 | $30K |
| Legato Capital Management LLC | 0.00% | Add +210.4% | 43,467 | $29K |
| Citadel Advisors | 0.00% | New | 42,992 | $29K |
| XTX Topco Ltd | 0.00% | New | 39,349 | $26K |
| Gabelli Funds LLC | 0.00% | No change | 39,000 | $26K |
| FMR LLC | 0.00% | Reduce -27.8% | 32,899 | $22K |
| Callan Family Office, LLC | 0.00% | Reduce -0.2% | 29,791 | $20K |
| Dimensional Fund Advisors LP | 0.00% | Reduce -94.4% | 27,792 | $19K |
| Greenwood Capital Associates LLC | 0.00% | No change | 27,754 | $19K |
| Group One Trading LLC | 0.00% | Add +1307.2% | 25,513 | $17K |
| Abel Hall, LLC | 0.00% | Reduce -21.5% | 25,283 | $17K |
| UBS Group AG | 0.00% | Add +59.8% | 21,213 | $14K |
| Two Sigma Securities, LLC | 0.00% | New | 17,549 | $12K |
| Qube Research & Technologies Ltd | 0.00% | Reduce -54.3% | 17,029 | $11K |
| Morgan Stanley | 0.00% | Reduce -0.1% | 16,686 | $11K |
| Vanguard Personalized Indexing Management, LLC | 0.00% | New | 16,542 | $11K |
| Point72 Asset Management | 0.00% | New | 14,717 | $10K |
| Simplex Trading, LLC | 0.00% | Add +401.6% | 13,790 | $9K |
| Certuity, LLC | 0.00% | No change | 13,677 | $9K |
| GSK plc | 0.00% | — | 11,151 | $7K |
| Ethic Inc. | 0.00% | Reduce -12.0% | 10,942 | $7K |
| Balboa Wealth Partners | 0.00% | Reduce -14.9% | 10,000 | $7K |
| SBI Securities Co., Ltd. | 0.00% | No change | 8,670 | $6K |
| Brown Shipley& Co Ltd | 0.00% | No change | 4,783 | $3K |
| Royal Bank of Canada | 0.00% | Reduce -35.3% | 4,795 | $3K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -71.7% | 2,395 | $2K |
| Nisa Investment Advisors, LLC | 0.00% | No change | 2,289 | $2K |
| JPMorgan Chase & Co. | 0.00% | Add +19.7% | 1,960 | $1K |
| Federated Hermes, Inc. | 0.00% | No change | 1,656 | $1K |
| BNP Paribas Financial Markets | 0.00% | No change | 680 | $455 |
| Bank of America Corp. | 0.00% | Add +2.0% | 451 | $301 |
| PNC Financial Services Group, Inc. | 0.00% | Reduce -98.1% | 144 | $96 |
| SHP Wealth Management | 0.00% | — | 100 | $67 |
| Barclays PLC | 0.00% | Add +2000.0% | 21 | $14 |
| Optiver Holding B.V. | 0.00% | No change | 14 | $9 |
| Cwm, LLC | 0.00% | Reduce -26.0% | 54 | $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.