HARVARD BIOSCIENCE INC - HBIO
Detailed investor-level table based on 13F positions.
Methodology:
Market value and % of portfolio use SEC reported VALUE ($000).
For PUT/CALL positions this reflects reported underlying exposure, not premium cash paid/received.
Details.
Rows: 0
| Investor | History | Status | Shares held | Market value ($000) | % of portfolio | Previous % | Rank | Change in shares | % change in shares | Source | Date reported |
|---|---|---|---|---|---|---|---|---|---|---|---|
| WEBER CAPITAL MANAGEMENT LLC /ADV | History | Reduced | 310,861 | 1,911 | 1.63% | 1.56% | 1 | -9,176 | -2.87% | Q2 2026 | Aug 12, 2026 |
| Meros Investment Management, LP | History | Added to | 182,992 | 1,125 | 0.36% | 0.25% | 2 | +64,470 | 54.39% | Q2 2026 | Aug 14, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | History | No change | 179,614 | 1,103 | 0.0% | 0.0% | 3 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | History | Added to | 169,625 | 1,043 | 0.0% | 0.0% | 4 | +6,312 | 3.86% | Q2 2026 | Aug 13, 2026 |
| NANO CAP NEW MILLENNIUM GROWTH FUND L P | History | Added to | 143,082 | 879 | 0.68% | 0.53% | 5 | +25,582 | 21.77% | Q2 2026 | Aug 14, 2026 |
| CORSAIR CAPITAL MANAGEMENT, L.P. | History | Reduced | 122,810 | 755 | 0.09% | 0.09% | 6 | -2,000 | -1.6% | Q2 2026 | Aug 14, 2026 |
| TWO SIGMA INVESTMENTS, LP | History | Added to | 114,545 | 704 | 0.0% | 0.0% | 7 | +428 | 0.38% | Q2 2026 | Aug 14, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | History | Reduced | 99,327 | 610 | 0.0% | 0.0% | 8 | -2,100 | -2.07% | Q2 2026 | Aug 13, 2026 |
| BlackRock, Inc. | History | Reduced | 61,834 | 380 | 0.0% | 0.0% | 9 | -392 | -0.63% | Q2 2026 | Aug 07, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | History | Reduced | 47,555 | 292 | 0.0% | 0.0% | 10 | -11,956 | -20.09% | Q2 2026 | Aug 12, 2026 |
| Mink Brook Asset Management LLC | History | New | 33,369 | 205 | 0.09% | — | 11 | +33,369 | New | Q2 2026 | Aug 14, 2026 |
| MILLENNIUM MANAGEMENT LLC | History | Reduced | 32,620 | 200 | 0.0% | 0.0% | 12 | -13,712 | -29.6% | Q2 2026 | Aug 14, 2026 |
| VANGUARD FIDUCIARY TRUST CO | History | No change | 27,730 | 170 | 0.0% | 0.0% | 13 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| ESSEX INVESTMENT MANAGEMENT CO LLC | History | Reduced | 26,973 | 165 | 0.02% | 0.02% | 14 | -48 | -0.18% | Q2 2026 | Aug 06, 2026 |
| Williams & Novak, LLC | History | Reduced | 20,949 | 128 | 0.08% | 0.1% | 15 | -6,103 | -22.56% | Q2 2026 | Jul 08, 2026 |
| UBS Group AG | History | Added to | 17,581 | 108 | 0.0% | 0.0% | 16 | +9,176 | 109.17% | Q2 2026 | Aug 13, 2026 |
| RBF Capital, LLC | History | No change | 16,000 | 98 | 0.0% | 0.0% | 17 | 0 | 0.0% | Q2 2026 | Aug 14, 2026 |
| STATE STREET CORP | History | No change | 14,932 | 91 | 0.0% | 0.0% | 18 | 0 | 0.0% | Q2 2026 | Sep 22, 2026 |
| JANE STREET GROUP, LLC | History | Reduced | 13,982 | 85 | 0.0% | 0.0% | 19 | -9,848 | -41.33% | Q2 2026 | Aug 14, 2026 |
| CITADEL ADVISORS LLC | History | New | 13,251 | 81 | 0.0% | — | 20 | +13,251 | New | Q2 2026 | Sep 02, 2026 |
| GOLDMAN SACHS GROUP INC | History | New | 10,657 | 65 | 0.0% | — | 21 | +10,657 | New | Q2 2026 | Aug 14, 2026 |
| Bank of New York Mellon Corp | History | No change | 10,230 | 62 | 0.0% | 0.0% | 22 | 0 | 0.0% | Q2 2026 | Aug 06, 2026 |
| FMR LLC | History | Reduced | 3,179 | 19 | 0.0% | 0.0% | 23 | -95 | -2.9% | Q2 2026 | Aug 13, 2026 |
| MORGAN STANLEY | History | Reduced | 1,627 | 10 | 0.0% | 0.0% | 24 | -1 | -0.06% | Q2 2026 | Aug 13, 2026 |
| Vanguard Global Advisers, LLC | History | No change | 1,221 | 7 | 0.0% | 0.0% | 25 | 0 | 0.0% | Q2 2026 | Aug 13, 2026 |
| SBI Securities Co., Ltd. | History | No change | 866 | 5 | 0.0% | 0.0% | 26 | 0 | 0.0% | Q2 2026 | Jul 22, 2026 |
| Tower Research Capital LLC (TRC) | History | Reduced | 580 | 3 | 0.0% | 0.0% | 27 | -572 | -49.65% | Q2 2026 | Aug 11, 2026 |
| Brown Shipley& Co Ltd | History | No change | 478 | 2 | 0.0% | 0.0% | 28 | 0 | 0.0% | Q2 2026 | Jul 14, 2026 |
| JPMORGAN CHASE & CO | History | Reduced | 195 | 1 | 0.0% | 0.0% | 29 | -4,268 | -95.63% | Q2 2026 | Aug 12, 2026 |
| GROUP ONE TRADING LLC | History | Reduced | 240 | 1 | 0.0% | 0.0% | 30 | -1,942 | -89.0% | Q2 2026 | Aug 13, 2026 |
| NISA INVESTMENT ADVISORS, LLC | History | No change | 228 | 1 | 0.0% | 0.0% | 31 | 0 | 0.0% | Q2 2026 | Aug 10, 2026 |
| PENSION & WEALTH MANAGEMENT ADVISORS, INC. | History | No change | 225 | 1 | 0.0% | 0.0% | 32 | 0 | 0.0% | Q2 2026 | Aug 07, 2026 |
| CITIGROUP INC | History | Closed out | 0 | 0 | — | 0.0% | — | -6,273 | -100.0% | Q2 2026 | Aug 03, 2026 |
| ROYAL BANK OF CANADA | History | Reduced | 15 | 0 | — | 0.0% | — | -840 | -98.25% | Q2 2026 | Aug 14, 2026 |
| FEDERATED HERMES, INC. | History | Closed out | 0 | 0 | — | — | — | -73 | -100.0% | Q2 2026 | Aug 12, 2026 |
| BARCLAYS PLC | History | New | 26 | 0 | — | — | — | +26 | New | Q2 2026 | Aug 14, 2026 |
| BNP PARIBAS FINANCIAL MARKETS | History | Reduced | 66 | 0 | — | — | — | -2 | -2.94% | Q2 2026 | Aug 13, 2026 |
| PNC FINANCIAL SERVICES GROUP, INC. | History | No change | 14 | 0 | — | — | — | 0 | 0.0% | Q2 2026 | Aug 07, 2026 |
| CWM, LLC | History | No change | 4 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | May 14, 2026 |
| SHP Wealth Management | History | No change | 10 | 0 | — | — | — | 0 | 0.0% | Q2 2026 | Aug 11, 2026 |
| Financial Connections Group, Inc. | History | No change | 30 | 0 | — | — | — | 0 | 0.0% | Q1 2026 | May 01, 2026 |