Harvard Bioscience Inc
HBIO- Exchange
- Nasdaq
- Industry
- Laboratory Analytical Instruments
- SEC CIK
- 0001123494
No open-market purchases or sales by Harvard Bioscience Inc insiders were filed in the last 90 days; 37 institutions reported holding it in 13F filings for Q2 2026, worth $10.3M in total; no superinvestor holds it.
13F holders, Q4 2025
Institutional positions in Harvard Bioscience Inc as of Dec 31, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 64
- +5 vs. Q3 2025
- Shares held
- 17.5M
- +4.90M (+39.0%) vs. Q3 2025
- Total value
- $11.7M
- +$6.17M (+112.0%) vs. Q3 2025
- New holders
- 13
- 21 more added
- Sold out
- 8
- 16 more reduced
2 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting HBIO on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 37 | $10.3M |
| Q1 2026 | 37 | $7.73M |
| Q4 2025 | 64 | $11.7M |
| Q3 2025 | 61 | $7.29M |
| Q2 2025 | 69 | $8.39M |
| Q1 2025 | 92 | $14.5M |
| Q4 2024 | 96 | $65.5M |
| Q3 2024 | 95 | $84.2M |
| Q2 2024 | 100 | $90.7M |
| Q1 2024 | 90 | $137.8M |
| Q4 2023 | 93 | $176.4M |
| Q3 2023 | 94 | $141.6M |
| Q2 2023 | 100 | $178.2M |
| Q1 2023 | 66 | $127.2M |
| Q4 2022 | 68 | $83.3M |
| Q3 2022 | 79 | $74.0M |
| Q2 2022 | 91 | $106.8M |
| Q1 2022 | 98 | $187.3M |
| Q4 2021 | 103 | $211.4M |
| Q3 2021 | 99 | $191.7M |
| Q2 2021 | 99 | $232.3M |
| Q1 2021 | 87 | $144.2M |
Institutions, Q4 2025
Shares, value and share of portfolio for each institution holding Harvard Bioscience Inc; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Weber Capital Management LLC | 3,200,380 | $2.14M | 2.02% | +3,200,380 | New |
| Vanguard Group Inc | 1,923,275 | $1.29M | 0.00% | +71,429+3.9% | Added |
| Acadian Asset Management LLC | 1,772,627 | $1.18M | 0.00% | +702,937+65.7% | Added |
| Meros Investment Management, LP | 1,217,628 | $814.4K | 0.32% | +299,369+32.6% | Added |
| Corsair Capital Management, L.P. | 1,108,692 | $741.5K | 0.12% | +1,008,692+1,008.7% | Added |
| Renaissance Technologies LLC | 1,021,241 | $683.0K | 0.00% | +152,763+17.6% | Added |
| Two Sigma Investments, LP | 1,012,417 | $677.1K | 0.00% | +538,260+113.5% | Added |
| Two Sigma Advisers, LP | 878,556 | $587.6K | 0.00% | +635,400+261.3% | Added |
| BlackRock, Inc. | 622,296 | $416.2K | 0.00% | +929+0.1% | Added |
| Nano Cap New Millennium Growth Fund L P | 600,000 | $401.3K | 0.34% | +600,000 | New |
| Millennium Management LLC | 546,067 | $365.2K | 0.00% | −25,636−4.5% | Reduced |
| Geode Capital Management, LLC | 460,793 | $308.2K | 0.00% | +18,923+4.3% | Added |
| Jane Street Group, LLC | 415,159 | $277.7K | 0.00% | +374,595+923.5% | Added |
| Portolan Capital Management, LLC | 409,650 | $274.0K | 0.01% | +409,650 | New |
| Williams & Novak, LLC | 348,800 | $233.3K | 0.18% | +73,300+26.6% | Added |
| Citigroup Inc | 193,828 | $129.6K | 0.00% | +192,319+12,744.8% | Added |
| Essex Investment Management Co LLC | 184,678 | $123.5K | 0.02% | +184,678 | New |
| RBF Capital, LLC | 160,000 | $107.0K | 0.00% | 00.0% | Unchanged |
| State Street Corp | 149,352 | $99.9K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 139,869 | $93.5K | 0.00% | +55,520+65.8% | Added |
| Assenagon Asset Management S.A. | 139,218 | $93.1K | 0.00% | −20.0% | Reduced |
| Bank of New York Mellon Corp | 126,223 | $84.4K | 0.00% | 00.0% | Unchanged |
| Northern Trust Corp | 91,973 | $61.5K | 0.00% | −53,200−36.6% | Reduced |
| Virtu Financial LLC | 59,508 | $40.0K | 0.00% | +59,508 | New |
| Gamco Investors, Inc. Et Al | 57,000 | $38.1K | 0.00% | +57,000 | New |
| Goldman Sachs Group Inc | 49,751 | $33.3K | 0.00% | +37,057+291.9% | Added |
| Pasadena Private Wealth, LLC | 45,000 | $30.1K | 0.00% | −198,911−81.6% | Reduced |
| Legato Capital Management LLC | 43,467 | $29.1K | 0.00% | +29,462+210.4% | Added |
| Citadel Advisors LLC | 42,992 | $28.8K | 0.00% | +42,992 | New |
| XTX Topco Ltd | 39,349 | $26.3K | 0.00% | +39,349 | New |
| Gabelli Funds LLC | 39,000 | $26.1K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 32,899 | $22.0K | 0.00% | −12,694−27.8% | Reduced |
| Callan Family Office, LLC | 29,791 | $19.9K | 0.00% | −53−0.2% | Reduced |
| Dimensional Fund Advisors LP | 27,792 | $18.6K | 0.00% | −468,352−94.4% | Reduced |
| Greenwood Capital Associates LLC | 27,754 | $18.6K | 0.00% | 00.0% | Unchanged |
| Group One Trading, L.P. | 25,513 | $17.1K | 0.00% | +23,700+1,307.2% | Added |
| Abel Hall, LLC | 25,283 | $16.9K | 0.00% | −6,923−21.5% | Reduced |
| UBS Group AG | 21,213 | $14.2K | 0.00% | +7,934+59.7% | Added |
| Two Sigma Securities, LLC | 17,549 | $11.7K | 0.00% | +17,549 | New |
| Qube Research & Technologies Ltd | 17,029 | $11.4K | 0.00% | −20,226−54.3% | Reduced |
| Morgan Stanley | 16,686 | $11.2K | 0.00% | −17−0.1% | Reduced |
| JustInvest LLC | 16,542 | $11.1K | 0.00% | +16,542 | New |
| Point72 Asset Management, L.P. | 14,717 | $9.84K | 0.00% | +14,717 | New |
| Simplex Trading, LLC | 13,790 | $9.22K | 0.00% | +11,041+401.6% | Added |
| Camden Capital, LLC | 13,677 | $9.15K | 0.00% | 00.0% | Unchanged |
| GSK plc | 11,151 | $7.46K | 0.00% | +11,151 | New |
| Ethic Inc. | 10,942 | $7.32K | 0.00% | −1,497−12.0% | Reduced |
| Balboa Wealth Partners | 10,000 | $6.69K | 0.00% | −1,750−14.9% | Reduced |
| SBI Securities Co., Ltd. | 8,670 | $5.80K | 0.00% | 00.0% | Unchanged |
| Brown Shipley& Co Ltd | 4,783 | $3.20K | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 4,795 | $3.00K | 0.00% | −2,611−35.3% | Reduced |
| Tower Research Capital LLC (TRC) | 2,395 | $1.60K | 0.00% | −6,067−71.7% | Reduced |
| Nisa Investment Advisors, LLC | 2,289 | $1.53K | 0.00% | 00.0% | Unchanged |
| Pension & Wealth Management Advisors, Inc. | 2,250 | $1.50K | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 1,960 | $1.31K | 0.00% | +323+19.7% | Added |
| Federated Hermes, Inc. | 1,656 | $1.11K | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 680 | $455 | 0.00% | 00.0% | Unchanged |
| Bank of America Corp | 451 | $301 | 0.00% | +9+2.0% | Added |
| The PNC Financial Services Group, Inc. | 144 | $96 | 0.00% | −7,400−98.1% | Reduced |
| SHP Wealth Management | 100 | $67 | 0.00% | +100 | New |
| Barclays PLC | 21 | $14 | 0.00% | +20+2,000.0% | Added |
| Optiver Holding B.V. | 14 | $9 | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 54 | $0 | 0.00% | −19−26.0% | Reduced |
| Financial Connections Group, Inc. | 300 | $0 | 0.00% | 00.0% | Unchanged |
| Harvey Partners, LLC | 0 | $0 | 0.00% | −2,050,000−100.0% | Sold out |
| Granahan Investment Management Inc | 0 | $0 | 0.00% | −603,519−100.0% | Sold out |
| Acuitas Investments, LLC | 0 | $0 | 0.00% | −491,092−100.0% | Sold out |
| Brighton Jones LLC | 0 | $0 | 0.00% | −25,007−100.0% | Sold out |
| Bridgeway Capital Management, LLC | 0 | $0 | 0.00% | −12,500−100.0% | Sold out |
| Northwestern Mutual Wealth Management Co | 0 | $0 | 0.00% | −1,900−100.0% | Sold out |
| EverSource Wealth Advisors, LLC | 0 | $0 | 0.00% | −1,219−100.0% | Sold out |
| Rialto Wealth Management, LLC | 0 | $0 | 0.00% | −1,081−100.0% | Sold out |
| AMH Equity Ltd | – | – | – | – | Not filed |
| Point72 Asia (Singapore) Pte. Ltd. | – | – | – | – | Not filed |