Institutional Holders (2026 Q1)
140 + investorsExplore institutional interest and hedge fund ownership dynamics. Analyze portfolio weights, new positions, and conviction trends in OSUR. Verified SEC 13F-HR filings.
| # | Investor | % of Portfolio | Shares | Mkt Value |
|---|---|---|---|---|
| 1 | Altai Capital Management, L.P. | 30.95% | 3,613,836 | $11K |
| 2 | CANNELL CAPITAL LLC | 3.69% | 2,003,271 | $6.0M |
| 3 | Gagnon Advisors, LLC | 2.66% | 1,207,440 | $3.6M |
| 4 | Peapod Lane Capital LLC | 2.49% | 1,018,476 | $3.0M |
| 5 | Archon Capital Management LLC | 1.27% | 747,909 | $2.2M |
| 6 | Yorkville Advisors Global, LP | 1.23% | 635,000 | $1.9M |
| 7 | GAGNON SECURITIES LLC | 1.19% | 1,714,391 | $5.1M |
| 8 | PRIVATE MANAGEMENT GROUP INC | 0.47% | 5,422,129 | $16.3M |
| 9 | Intrinsic Edge Capital Management LLC | 0.17% | 349,064 | $1.0M |
| 10 | SYSTEMATIC FINANCIAL MANAGEMENT LP | 0.17% | 2,480,483 | $7.4M |
| 11 | Odyssean, LLC | 0.15% | 133,937 | $402K |
| 12 | Murphy Pohlad Asset Management LLC | 0.12% | 115,867 | $348K |
| 13 | Nierenberg Investment Management Company, LLC | 0.08% | 55,555 | $167K |
| 14 | Significant Wealth Partners LLC | 0.07% | 19,857 | $60K |
| 15 | GSA CAPITAL PARTNERS LLP | 0.05% | 288,621 | — |
| 16 | Manatuck Hill Partners, LLC | 0.02% | 30,000 | $90K |
| 17 | Aster Capital Management (DIFC) Ltd | 0.02% | 20,080 | $68K |
| 18 | SHIKIAR ASSET MANAGEMENT INC | 0.02% | 25,000 | — |
| 19 | BRIDGEWAY CAPITAL MANAGEMENT, LLC | 0.02% | 284,563 | $854K |
| 20 | JACOBS LEVY EQUITY MANAGEMENT, INC | 0.01% | 999,593 | $3.0M |
| 21 | BFSG, LLC | 0.01% | 44,350 | $133K |
| 22 | Neuberger Berman Group LLC | 0.01% | 4,361,901 | $13.1M |
| 23 | RENAISSANCE TECHNOLOGIES LLC | 0.01% | 2,083,303 | $6.2M |
| 24 | Quadrant Private Wealth Management, LLC | 0.01% | 20,260 | $61K |
| 25 | ACADIAN ASSET MANAGEMENT LLC | 0.01% | 2,022,119 | $6K |
| Investor | Ownership History |
% of Portfolio | Prev % | Rank | Conviction | Avg Buy Price | 13F Score™ 3Y / 7Y | Sell Timing | Shares | Mkt Value | Change | Change % | Source | Quarter | Filed |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|