Institutional HoldersBeta
Who holds a company, from every 13F filed for the quarter, one row per filer exactly as filed, against the latest share count the company reported.
Share classes (cover page of the 10-Q filed 2026-08-11, as of 2026-08-04)
| Class | Listed | Shares outstanding | Held by 13F filers | % of class | Holders | CUSIP |
|---|---|---|---|---|---|---|
| Common stock | HBIO · NASDAQ | 4,552,305 | 1,353,415 | 29.7% | 35 | 416906204 |
Each class is compared with its own share count; classes are not added together. A class that is not exchange-listed cannot be held by 13F filers.
Top holders (35 of 35 · 416906204)
change vs 2026-03-31| # | Filer | Shares | % of class | Value | Change |
|---|---|---|---|---|---|
| 1 | WEBER CAPITAL MANAGEMENT LLC /ADV | 310,861 | 6.83% | $1.9M | -9,176 (-2.9%) |
| 2 | ACADIAN ASSET MANAGEMENT LLC | 179,614 | 3.95% | $1.1M | — |
| 3 | VANGUARD CAPITAL MANAGEMENT LLC | 169,625 | 3.73% | $1.0M | +6,312 (+3.9%) |
| 4 | CORSAIR CAPITAL MANAGEMENT, L.P. | 122,810 | 2.70% | $755K | -2,000 (-1.6%) |
| 5 | TWO SIGMA INVESTMENTS, LP | 114,545 | 2.52% | $704K | +428 (+0.4%) |
| 6 | RENAISSANCE TECHNOLOGIES LLC | 99,327 | 2.18% | $611K | -2,100 (-2.1%) |
| 7 | BlackRock, Inc. | 61,834 | 1.36% | $380K | -392 (-0.6%) |
| 8 | GEODE CAPITAL MANAGEMENT, LLC | 47,555 | 1.04% | $293K | -11,956 (-20.1%) |
| 9 | Mink Brook Asset Management LLC | 33,369 | 0.73% | $205K | NEW |
| 10 | MILLENNIUM MANAGEMENT LLC | 32,620 | 0.72% | $201K | -13,712 (-29.6%) |
| 11 | VANGUARD FIDUCIARY TRUST CO | 27,730 | 0.61% | $171K | — |
| 12 | ESSEX INVESTMENT MANAGEMENT CO LLC | 26,973 | 0.59% | $166K | -48 (-0.2%) |
| 13 | Williams & Novak, LLC | 20,949 | 0.46% | $129K | -6,103 (-22.6%) |
| 14 | UBS Group AG | 17,581 | 0.39% | $108K | +9,176 (+109.2%) |
| 15 | RBF Capital, LLC | 16,000 | 0.35% | $98K | — |
| 16 | STATE STREET CORP | 14,932 | 0.33% | $92K | — |
| 17 | JANE STREET GROUP, LLC | 13,982 | 0.31% | $86K | -9,848 (-41.3%) |
| 18 | CITADEL ADVISORS LLC | 13,251 | 0.29% | $81K | NEW |
| 19 | GOLDMAN SACHS GROUP INC | 10,657 | 0.23% | $66K | NEW |
| 20 | Bank of New York Mellon Corp | 10,230 | 0.22% | $63K | — |
| 21 | FMR LLC | 3,179 | 0.07% | $20K | -95 (-2.9%) |
| 22 | MORGAN STANLEY | 1,627 | 0.04% | $10K | -1 (-0.1%) |
| 23 | Vanguard Global Advisers, LLC | 1,221 | 0.03% | $8K | — |
| 24 | SBI Securities Co., Ltd. | 866 | 0.02% | $5K | — |
| 25 | Tower Research Capital LLC (TRC) | 580 | 0.01% | $4K | -572 (-49.7%) |
| 26 | Brown Shipley& Co Ltd | 478 | 0.01% | $3K | — |
| 27 | GROUP ONE TRADING LLC | 240 | 0.01% | $1K | -1,942 (-89.0%) |
| 28 | NISA INVESTMENT ADVISORS, LLC | 228 | 0.01% | $1K | — |
| 29 | PENSION & WEALTH MANAGEMENT ADVISORS, INC. | 225 | 0.00% | $1K | — |
| 30 | JPMORGAN CHASE & CO | 195 | 0.00% | $1K | -4,268 (-95.6%) |
| 31 | BNP PARIBAS FINANCIAL MARKETS | 66 | 0.00% | $406 | -2 (-2.9%) |
| 32 | BARCLAYS PLC | 26 | 0.00% | $160 | NEW |
| 33 | ROYAL BANK OF CANADA | 15 | 0.00% | $0 | -840 (-98.2%) |
| 34 | PNC Financial Services Group, Inc. | 14 | 0.00% | $86 | — |
| 35 | SHP Wealth Management | 10 | 0.00% | $62 | — |
Exited since 2026-03-31 (3 filers; largest 3 shown)
| CITIGROUP INC | −6,273 |
| FEDERATED HERMES, INC. | −73 |
| CWM, LLC | −4 |
Large holders from 13D/13G (latest per reporting person, last 2 years)
Filed when a holder crosses 5% or changes materially, so often more current than the quarter-end 13F. Percentages are the filer's own, against the share count they used.
| Reporting person | Form | Filed | Event | Shares | % of class |
|---|---|---|---|---|---|
| Leviticus Partners LP | SCHEDULE 13G/A | 2026-09-22 | 2026-09-14 | 235,000 | 5.2% |
| BroadOak Capital Partners, LLC | SCHEDULE 13D | 2026-03-23 | 2025-12-17 | 825,000 | 15.57% |
| BroadOak Fund VI, L.P. | SCHEDULE 13D | 2026-03-23 | 2025-12-17 | 15,000 | 0.33% |
| BroadOak Income Fund, L.P. | SCHEDULE 13D | 2026-03-23 | 2025-12-17 | 810,000 | 15.34% |
| William Snider | SCHEDULE 13D | 2026-03-23 | 2025-12-17 | 846,000 | 15.97% |
| AMH Equity LLC | SCHEDULE 13G/A | 2025-08-07 | 2025-08-06 | 4,047,535 | 9.2% |
| BlackRock, Inc. | SCHEDULE 13G/A | 2025-07-17 | 2025-06-30 | 1,113,926 | 2.5% |
| HARVEY PARTNERS, LLC | SCHEDULE 13G/A | 2025-05-15 | 2025-03-31 | 2,187,500 | 4.96% |
| Weber Capital Management, LLC | SCHEDULE 13G/A | 2025-05-08 | 2025-03-31 | 3,200,380 | 7.26% |
| Punch & Associates Investment Management, Inc. | SCHEDULE 13G/A | 2025-04-07 | 2025-03-31 | 25,586 | 0.1% |
Source: SEC Form 13F-HR information tables for the quarter ending 2026-06-30 (filed within 45 days of quarter end; amendments applied; values normalised to dollars), the share count from the company's latest 10-K/10-Q XBRL cover page, and Schedule 13D/13G filings. Each row is a legal 13F filer as filed — related entities (e.g. Vanguard's advisers) are not merged. Retail brokerage accounts are not reported on 13F, so the remainder is mostly retail and insiders.