Harvard BioscienceHBIO
13F holders, Q2 2026 (June 30)At the end of Q2 2026, 35 institutions reported holding Harvard Bioscience Inc. (HBIO) in their 13F filings, up 1 from Q1 2026. 4 opened new positions and 2 sold out. The largest holders were Weber Capital Management LLC ($1.9M), Acadian Asset Management LLC ($1.1M) and Vanguard Capital Management LLC ($1.0M). 3 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Harvard Bioscience Inc.
- CUSIP
- 416906204
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2026 → Q2 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 4 | $352K |
| Exits | 2 | $31K |
All 13F filers, Q1 2026 → Q2 2026: 73,219 shares bought and 69,401 shares sold, net +3,818 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 35 holders
| Weber Capital Management LLC | 1.63% | Reduce -2.9% | 310,861 | $1.9M |
| Acadian Asset Management LLC | 0.00% | No change | 179,614 | $1.1M |
| Vanguard Capital Management LLC | 0.00% | Add +3.9% | 169,625 | $1.0M |
| Corsair Capital Management, L.P. | 0.10% | Reduce -1.6% | 122,810 | $755K |
| Two Sigma Investments, LP | 0.00% | Add +0.4% | 114,545 | $704K |
| Renaissance Technologies | 0.00% | Reduce -2.1% | 99,327 | $611K |
| BlackRock, Inc. | 0.00% | Reduce -0.6% | 61,834 | $380K |
| Geode Capital Management, LLC | 0.00% | Reduce -20.1% | 47,555 | $293K |
| Mink Brook Asset Management LLC | 0.09% | New | 33,369 | $205K |
| Millennium Management | 0.00% | Reduce -29.6% | 32,620 | $201K |
| Vanguard Fiduciary Trust Co. | 0.00% | No change | 27,730 | $171K |
| Essex Investment Management Co. LLC | 0.02% | Reduce -0.2% | 26,973 | $166K |
| Williams & Novak, LLC | 0.09% | Reduce -22.6% | 20,949 | $129K |
| UBS Group AG | 0.00% | Add +109.2% | 17,581 | $108K |
| RBF Capital, LLC | 0.00% | No change | 16,000 | $98K |
| State Street Corp. | 0.00% | No change | 14,932 | $92K |
| Jane Street Group, LLC | 0.00% | Reduce -41.3% | 13,982 | $86K |
| Citadel Advisors | 0.00% | New | 13,251 | $81K |
| Goldman Sachs Group Inc. | 0.00% | New | 10,657 | $66K |
| Bank of New York Mellon Corp | 0.00% | No change | 10,230 | $63K |
| FMR LLC | 0.00% | Reduce -2.9% | 3,179 | $20K |
| Morgan Stanley | 0.00% | Reduce -0.1% | 1,627 | $10K |
| Vanguard Global Advisers, LLC | 0.00% | No change | 1,221 | $8K |
| SBI Securities Co., Ltd. | 0.00% | No change | 866 | $5K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -49.6% | 580 | $4K |
| Brown Shipley& Co Ltd | 0.00% | No change | 478 | $3K |
| Group One Trading LLC | 0.00% | Reduce -89.0% | 240 | $1K |
| Nisa Investment Advisors, LLC | 0.00% | No change | 228 | $1K |
| Pension & Wealth Management Advisors, Inc. | 0.00% | No change | 225 | $1K |
| JPMorgan Chase & Co. | 0.00% | Reduce -95.6% | 195 | $1K |
| BNP Paribas Financial Markets | 0.00% | Reduce -2.9% | 66 | $406 |
| Barclays PLC | 0.00% | New | 26 | $160 |
| PNC Financial Services Group, Inc. | 0.00% | No change | 14 | $86 |
| SHP Wealth Management | 0.00% | No change | 10 | $62 |
| Royal Bank of Canada | 0.00% | Reduce -98.3% | 15 | $0 |
"% of holder's portfolio" is HBIO's weight in each manager's 13F, not the share of Harvard Bioscience Inc. the manager owns.