HARVARD BIOSCIENCE INC (HBIO)
Institutional ownership reported to the SEC as of Q2 2026, across 31 quarters.
36
Reporting holders
$9.2M
Reported value
32.9%
Of shares outstanding
0.2%
Held as options
+1
Holder change
Institutions report 1,499,875 shares against 4,552,305 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Options share is the part of reported value carried in derivative lines rather than shares. A high figure means institutions are expressing a view on this security without owning much of it.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| WEBER CAPITAL MANAGEMENT LLC /ADV | $1.9M | 310,861 | 1.63% | 2q | -2.9%-$56.4K |
| Meros Investment Management, LP | $1.1M | 182,992 | 0.36% | 19q | +54.4%+$396.5K |
| VANGUARD CAPITAL MANAGEMENT LLC | $1.0M | 169,625 | 0.00% | 2q | +3.9%+$38.8K |
| NANO CAP NEW MILLENNIUM GROWTH FUND L P | $880.0K | 143,082 | 0.68% | 3q | +21.8%+$157.3K |
| CORSAIR CAPITAL MANAGEMENT, L.P. | $755.3K | 122,810 | 0.09% | 2q | -1.6%-$12.3K |
| TWO SIGMA INVESTMENTS, LP | $704.5K | 114,545 | 0.00% | 2q | HELD |
| RENAISSANCE TECHNOLOGIES LLC | $610.9K | 99,327 | 0.00% | 2q | -2.1%-$12.9K |
| BlackRock, Inc. | $380.3K | 61,834 | 0.00% | 2q | -0.6%-$2.4K |
| GEODE CAPITAL MANAGEMENT, LLC | $292.5K | 47,555 | 0.00% | 2q | -20.1%-$73.5K |
| Mink Brook Asset Management LLC | $205.2K | 33,369 | 0.09% | new | NEW |
| MILLENNIUM MANAGEMENT LLC | $200.6K | 32,620 | 0.00% | 2q | -29.6%-$84.3K |
| VANGUARD FIDUCIARY TRUST CO | $170.5K | 27,730 | 0.00% | 2q | HELD |
| ESSEX INVESTMENT MANAGEMENT CO LLC | $165.9K | 26,973 | 0.02% | 2q | HELD |
| Williams & Novak, LLC | $128.8K | 20,949 | 0.09% | 2q | -22.6%-$37.5K |
| UBS Group AG | $108.1K | 17,581 | 0.00% | 2q | +109.2%+$56.4K |
| RBF Capital, LLC | $98.4K | 16,000 | 0.00% | 2q | HELD |
| STATE STREET CORP | $91.8K | 14,932 | 0.00% | 2q | HELD |
| JANE STREET GROUP, LLC | $86.0K | 13,982 | 0.00% | 2q | -41.3%-$60.6K |
| CITADEL ADVISORS LLC | $81.5K | 13,251 | 0.00% | new | NEW |
| GOLDMAN SACHS GROUP INC | $65.5K | 10,657 | 0.00% | new | NEW |
| Bank of New York Mellon Corp | $62.9K | 10,230 | 0.00% | 2q | HELD |
| FMR LLC | $19.6K | 3,179 | 0.00% | 2q | -2.9% |
| GROUP ONE TRADING LLC | $15.6K | 240 | 0.00% | 2q | -89.0%-$126.4K |
| MORGAN STANLEY | $10.0K | 1,627 | 0.00% | 2q | HELD |
| Vanguard Global Advisers, LLC | $7.5K | 1,221 | 0.00% | 2q | HELD |
| SBI Securities Co., Ltd. | $5.3K | 866 | 0.00% | 2q | HELD |
| Tower Research Capital LLC (TRC) | $3.6K | 580 | 0.00% | 2q | -49.7%-$3.5K |
| Brown Shipley& Co Ltd | $2.9K | 478 | 0.00% | 2q | HELD |
| NISA INVESTMENT ADVISORS, LLC | $1.4K | 228 | 0.00% | 2q | HELD |
| PENSION & WEALTH MANAGEMENT ADVISORS, INC. | $1.4K | 225 | 0.00% | 8q | HELD |
| JPMORGAN CHASE & CO | $1.2K | 195 | 0.00% | 2q | -95.6%-$26.1K |
| ACADIAN ASSET MANAGEMENT LLC | $1.1K | 179,614 | 0.00% | 2q | HELD |
| BNP PARIBAS FINANCIAL MARKETS | $406 | 66 | 0.00% | 2q | -2.9% |
| BARCLAYS PLC | $160 | 26 | 0.00% | new | NEW |
| PNC Financial Services Group, Inc. | $86 | 14 | 0.00% | 2q | HELD |
| SHP Wealth Management | $62 | 10 | 0.00% | 2q | HELD |
| ROYAL BANK OF CANADA | $0 | 15 | 0.00% | 2q | -98.2% |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 36 | $9.2M | 1,499,875 | 4 | 4 | 14 | 0.2% |
| Q1 2026 | 35 | $7.0M | 1,406,009 | 31 | 0 | 3 | 1.8% |
| Q4 2025 | 60 | $10.6M | 15,789,190 | 10 | 18 | 13 | 0.7% |
| Q3 2025 | 59 | $6.9M | 15,556,793 | 5 | 6 | 25 | 0.4% |
| Q2 2025 | 64 | $8.0M | 17,784,470 | 13 | 16 | 26 | 0.9% |
| Q1 2025 | 82 | $13.8M | 24,358,091 | 8 | 17 | 35 | 0.1% |
| Q4 2024 | 87 | $63.3M | 29,985,043 | 14 | 30 | 25 | 0.1% |
| Q3 2024 | 86 | $81.8M | 30,394,497 | 11 | 28 | 25 | 0.0% |
| Q2 2024 | 92 | $87.8M | 30,800,724 | 15 | 40 | 21 | 0.0% |
| Q1 2024 | 83 | $130.8M | 30,837,987 | 8 | 23 | 35 | 0.0% |
| Q4 2023 | 85 | $168.4M | 31,484,820 | 5 | 31 | 20 | 0.0% |
| Q3 2023 | 89 | $132.8M | 30,857,765 | 8 | 38 | 24 | 0.1% |
| Q2 2023 | 92 | $166.3M | 30,299,864 | 39 | 24 | 21 | 0.1% |
| Q1 2023 | 56 | $117.4M | 27,927,038 | 4 | 12 | 20 | 0.0% |
| Q4 2022 | 54 | $68.1M | 24,581,823 | 7 | 13 | 21 | 0.0% |
| Q3 2022 | 76 | $74.0M | 28,891,811 | 7 | 22 | 28 | 0.0% |
| Q2 2022 | 88 | $106.8M | 29,664,390 | 18 | 28 | 28 | 0.0% |
| Q1 2022 | 100 | $187.4M | 30,173,701 | 7 | 27 | 37 | 0.0% |
| Q4 2021 | 103 | $212.0M | 30,071,555 | 9 | 35 | 31 | 0.0% |
| Q3 2021 | 100 | $191.8M | 27,456,927 | 12 | 36 | 31 | 0.1% |
| Q2 2021 | 99 | $232.3M | 27,883,177 | 22 | 35 | 29 | 0.0% |
| Q1 2021 | 88 | $144.3M | 26,406,249 | 16 | 25 | 31 | 0.0% |
| Q4 2020 | 81 | $110.9M | 25,861,339 | 5 | 30 | 24 | 0.0% |
| Q3 2020 | 83 | $79.4M | 26,370,760 | 7 | 27 | 35 | 0.0% |
| Q2 2020 | 85 | $82.3M | 26,562,943 | 32 | 29 | 11 | 0.0% |
| Q1 2020 | 60 | $56.4M | 24,461,407 | 4 | 19 | 22 | 0.0% |
| Q4 2019 | 67 | $74.1M | 24,283,437 | 5 | 13 | 22 | 0.0% |
| Q3 2019 | 68 | $74.7M | 24,418,026 | 9 | 19 | 22 | 0.0% |
| Q2 2019 | 77 | $48.8M | 24,403,205 | 11 | 27 | 26 | 0.0% |
| Q1 2019 | 88 | $121.9M | 28,285,610 | 12 | 21 | 37 | 0.0% |
| Q4 2018 | 80 | $90.0M | 28,305,844 | 2 | 0 | 4 | 0.0% |