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, Q2 2026
Institutional positions in Harvard Bioscience Inc as of Jun 30, 2026. 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
- 37
- +2 vs. Q1 2026
- Shares held
- 1.68M
- +93.9K (+5.9%) vs. Q1 2026
- Total value
- $10.3M
- +$2.60M (+33.7%) vs. Q1 2026
- New holders
- 4
- 5 more added
- Sold out
- 2
- 16 more reduced
2 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 | $11.8M |
| Q3 2025 | 61 | $7.29M |
| Q2 2025 | 69 | $8.39M |
| Q1 2025 | 92 | $14.5M |
| Q4 2024 | 96 | $65.5M |
| Q3 2024 | 95 | $84.3M |
| Q2 2024 | 100 | $90.7M |
| Q1 2024 | 90 | $138.6M |
| Q4 2023 | 93 | $178.3M |
| 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 | $211.9M |
| Q3 2021 | 99 | $191.7M |
| Q2 2021 | 99 | $232.3M |
| Q1 2021 | 87 | $144.2M |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Harvard Bioscience Inc; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Weber Capital Management LLC | 310,861 | $1.91M | 1.63% | −9,176−2.9% | Reduced |
| Meros Investment Management, LP | 182,992 | $1.13M | 0.36% | +64,470+54.4% | Added |
| Acadian Asset Management LLC | 179,614 | $1.10M | 0.00% | 00.0% | Unchanged |
| Vanguard Capital Management LLC | 169,625 | $1.04M | 0.00% | +6,312+3.9% | Added |
| Nano Cap New Millennium Growth Fund L P | 143,082 | $880.0K | 0.68% | +25,582+21.8% | Added |
| Corsair Capital Management, L.P. | 122,810 | $755.3K | 0.10% | −2,000−1.6% | Reduced |
| Two Sigma Investments, LP | 114,545 | $704.5K | 0.00% | +428+0.4% | Added |
| Renaissance Technologies LLC | 99,327 | $610.9K | 0.00% | −2,100−2.1% | Reduced |
| BlackRock, Inc. | 61,834 | $380.3K | 0.00% | −392−0.6% | Reduced |
| Geode Capital Management, LLC | 47,555 | $292.5K | 0.00% | −11,956−20.1% | Reduced |
| Mink Brook Asset Management LLC | 33,369 | $205.2K | 0.09% | +33,369 | New |
| Millennium Management LLC | 32,620 | $200.6K | 0.00% | −13,712−29.6% | Reduced |
| Vanguard Fiduciary Trust Co | 27,730 | $170.5K | 0.00% | 00.0% | Unchanged |
| Essex Investment Management Co LLC | 26,973 | $165.9K | 0.02% | −48−0.2% | Reduced |
| Williams & Novak, LLC | 20,949 | $128.8K | 0.09% | −6,103−22.6% | Reduced |
| UBS Group AG | 17,581 | $108.1K | 0.00% | +9,176+109.2% | Added |
| RBF Capital, LLC | 16,000 | $98.4K | 0.00% | 00.0% | Unchanged |
| State Street Corp | 14,932 | $91.8K | 0.00% | 00.0% | Unchanged |
| Jane Street Group, LLC | 13,982 | $86.0K | 0.00% | −9,848−41.3% | Reduced |
| Citadel Advisors LLC | 13,251 | $81.5K | 0.00% | +13,251 | New |
| Goldman Sachs Group Inc | 10,657 | $65.5K | 0.00% | +10,657 | New |
| Bank of New York Mellon Corp | 10,230 | $62.9K | 0.00% | 00.0% | Unchanged |
| FMR LLC | 3,179 | $19.6K | 0.00% | −95−2.9% | Reduced |
| Morgan Stanley | 1,627 | $10.0K | 0.00% | −1−0.1% | Reduced |
| Vanguard Global Advisers, LLC | 1,221 | $7.51K | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 866 | $5.33K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 580 | $3.57K | 0.00% | −572−49.7% | Reduced |
| Brown Shipley& Co Ltd | 478 | $2.94K | 0.00% | 00.0% | Unchanged |
| Group One Trading, L.P. | 240 | $1.48K | 0.00% | −1,942−89.0% | Reduced |
| Nisa Investment Advisors, LLC | 228 | $1.40K | 0.00% | 00.0% | Unchanged |
| Pension & Wealth Management Advisors, Inc. | 225 | $1.38K | 0.00% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 195 | $1.19K | 0.00% | −4,268−95.6% | Reduced |
| BNP Paribas Arbitrage, SA | 66 | $406 | 0.00% | −2−2.9% | Reduced |
| Barclays PLC | 26 | $160 | 0.00% | +26 | New |
| The PNC Financial Services Group, Inc. | 14 | $86 | 0.00% | 00.0% | Unchanged |
| SHP Wealth Management | 10 | $62 | 0.00% | 00.0% | Unchanged |
| Royal Bank of Canada | 15 | $0 | 0.00% | −840−98.2% | Reduced |
| Citigroup Inc | 0 | $0 | 0.00% | −6,273−100.0% | Sold out |
| Federated Hermes, Inc. | 0 | $0 | 0.00% | −73−100.0% | Sold out |
| CWM, LLC | – | – | – | – | Not filed |
| Financial Connections Group, Inc. | – | – | – | – | Not filed |