Harvard BioscienceHBIO
13F holders, Q2 2025 (June 30)67holders −24
13new positions
37sold out
4famous investors
$0.44avg. 13F price*
At the end of Q2 2025, 67 institutions reported holding Harvard Bioscience Inc. (HBIO) in their 13F filings, down 24 from Q1 2025. 13 opened new positions and 37 sold out. The largest holders were AMH Equity Ltd ($1.6M), Harvey Partners, LLC ($950K) and Vanguard Group Inc. ($823K). 4 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 Mario Gabelli (0.0% of GAMCO Investors's portfolio).
- Company
- Harvard Bioscience Inc.
- CUSIP
- 416906105
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 13 | $460K |
| Exits | 37 | $2.7M |
All 13F filers, Q1 2025 → Q2 2025: 2,442,593 shares bought and 9,172,688 shares sold, net −6,730,095 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 67 holders
| AMH Equity Ltd | 2.29% | Add +3.6% | 3,508,703 | $1.6M |
| Harvey Partners, LLC | 0.09% | Reduce -2.1% | 2,141,099 | $950K |
| Vanguard Group Inc. | 0.00% | Reduce -13.3% | 1,853,891 | $823K |
| Granahan Investment Management, LLC | 0.03% | Reduce -1.7% | 1,501,508 | $666K |
| Dimensional Fund Advisors LP | 0.00% | Reduce -21.7% | 1,126,250 | $500K |
| BlackRock, Inc. | 0.00% | Reduce -60.5% | 1,114,575 | $495K |
| Acadian Asset Management LLC | 0.00% | Reduce -3.5% | 1,039,225 | $459K |
| Meros Investment Management, LP | 0.19% | Add +15.8% | 919,945 | $408K |
| UBS Group AG | 0.00% | Add +3261.8% | 792,206 | $352K |
| Renaissance Technologies | 0.00% | Reduce -10.4% | 791,978 | $351K |
| Millennium Management | 0.00% | New | 639,867 | $284K |
| Acuitas Investments, LLC | 0.17% | No change | 491,092 | $218K |
| Geode Capital Management, LLC | 0.00% | Reduce -52.3% | 440,022 | $195K |
| Pasadena Private Wealth, LLC | 0.02% | Add +23.2% | 243,911 | $108K |
| Goldman Sachs Group Inc. | 0.00% | Add +41.9% | 207,646 | $92K |
| Two Sigma Investments, LP | 0.00% | Add +14.1% | 197,785 | $88K |
| Northern Trust Corp. | 0.00% | Reduce -54.9% | 188,869 | $84K |
| RBF Capital, LLC | 0.00% | Reduce -11.6% | 160,000 | $71K |
| State Street Corp. | 0.00% | Reduce -80.0% | 149,352 | $66K |
| Susquehanna International Group, LLP | 0.00% | Add +123.6% | 140,464 | $62K |
| Marshall Wace, LLP | 0.00% | New | 138,700 | $61K |
| Bank of New York Mellon Corp | 0.00% | Reduce -39.8% | 126,223 | $56K |
| Williams & Novak, LLC | 0.04% | Add +37.0% | 106,570 | $47K |
| GAMCO Investors | 0.00% | Reduce -9.4% | 77,000 | $34K |
| FMR LLC | 0.00% | Add +213.8% | 72,274 | $32K |
| Jane Street Group, LLC | 0.00% | Add +491.9% | 70,736 | $31K |
| Qube Research & Technologies Ltd | 0.00% | New | 51,195 | $23K |
| Gabelli Funds LLC | 0.00% | Reduce -23.1% | 50,000 | $22K |
| Two Sigma Advisers, LP | 0.00% | Reduce -65.4% | 46,851 | $21K |
| AQR Capital Management | 0.00% | Add +100.6% | 45,706 | $20K |
| HRT Financial LP | 0.00% | New | 41,464 | $18K |
| Abel Hall, LLC | 0.01% | New | 37,334 | $17K |
| Assenagon Asset Management S.A. | 0.00% | Reduce -32.4% | 36,801 | $16K |
| Callan Family Office, LLC | 0.00% | New | 29,844 | $13K |
| Morgan Stanley | 0.00% | Reduce -65.1% | 29,556 | $13K |
| Greenwood Capital Associates LLC | 0.00% | Reduce -2.6% | 27,754 | $12K |
| Point72 Asia (Singapore) Pte. Ltd. | 0.00% | New | 27,238 | $12K |
| Virtu Financial LLC | 0.00% | New | 26,544 | $12K |
| Brighton Jones LLC | 0.00% | Add +0.4% | 25,092 | $11K |
| SG Americas Securities, LLC | 0.00% | Add +83.0% | 21,503 | $10K |
| Y-Intercept (Hong Kong) Ltd | 0.00% | New | 16,940 | $8K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +3.1% | 15,618 | $7K |
| Certuity, LLC | 0.00% | No change | 14,712 | $7K |
| Legato Capital Management LLC | 0.00% | Reduce -4.7% | 14,005 | $6K |
| Citigroup Inc. | 0.00% | Reduce -53.0% | 13,833 | $6K |
| Ethic Inc. | 0.00% | New | 13,009 | $6K |
| Bridgeway Capital Management, LLC | 0.00% | Reduce -86.0% | 12,500 | $6K |
| Balboa Wealth Partners | 0.00% | Add +4.4% | 11,750 | $5K |
| XTX Topco Ltd | 0.00% | New | 11,131 | $5K |
| SBI Securities Co., Ltd. | 0.00% | No change | 8,670 | $4K |
| PNC Financial Services Group, Inc. | 0.00% | Reduce -4.8% | 7,544 | $3K |
| Bank of America Corp. | 0.00% | Reduce -73.0% | 6,549 | $3K |
| Group One Trading LLC | 0.00% | Add +1103.3% | 4,813 | $2K |
| Brown Shipley& Co Ltd | 0.00% | No change | 4,783 | $2K |
| Raymond James Financial Inc. | 0.00% | New | 3,750 | $2K |
| Nisa Investment Advisors, LLC | 0.00% | Add +336.8% | 2,289 | $1K |
| Cwm, LLC | 0.00% | Add +150.7% | 3,362 | $1K |
| BNP Paribas Financial Markets | 0.00% | Reduce -97.2% | 1,753 | $778 |
| Federated Hermes, Inc. | 0.00% | No change | 1,656 | $735 |
| EverSource Wealth Advisors, LLC | 0.00% | Add +488.5% | 1,377 | $611 |
| Rialto Wealth Management, LLC | 0.00% | New | 1,081 | $480 |
| Transce3nd, LLC | 0.00% | No change | 938 | $416 |
| Barclays PLC | 0.00% | Reduce -97.9% | 892 | $395 |
| Wells Fargo & Company | 0.00% | Reduce -96.5% | 803 | $356 |
| Royal Bank of Canada | 0.00% | Reduce -92.8% | 157 | $0 |
| Tsfg, LLC | 0.00% | No change | 300 | $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.