Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in OSUR held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 6.5M | $19.5M | +1.1% | 9.055% | 0.00% |
| 2 | PRIVATE MANAGEMENT GROUP INC | 5.4M | $16.3M | +0.5% | 7.534% | 0.47% |
| 3 | Neuberger Berman Group LLC | 4.4M | $13.1M | +9.5% | 6.061% | 0.01% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 3.0M | $9.1M | β | 4.212% | 0.00% |
| 5 | DIMENSIONAL FUND ADVISORS LP | 2.8M | $8.5M | -13.4% | 3.920% | 0.00% |
| 6 | SYSTEMATIC FINANCIAL MANAGEMENT LP | 2.5M | $7.4M | +0.1% | 3.447% | 0.17% |
| 7 | RENAISSANCE TECHNOLOGIES LLC | 2.1M | $6.2M | -2.9% | 2.895% | 0.01% |
| 8 | CANNELL CAPITAL LLC | 2.0M | $6.0M | +2.5% | 2.784% | 3.79% |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | 1.8M | $5.5M | +3.9% | 2.529% | 0.00% |
| 10 | GAGNON SECURITIES LLC | 1.7M | $5.1M | +9.2% | 2.382% | 1.19% |
| 11 | STATE STREET CORP | 1.7M | $5.1M | +6.2% | 2.369% | 0.00% |
| 12 | D. E. Shaw & Co., Inc. | 1.4M | $4.1M | -17.0% | 1.921% | 0.00% |
| 13 | Gagnon Advisors, LLC | 1.2M | $3.6M | 0.0% | 1.678% | 2.66% |
| 14 | Peapod Lane Capital LLC | 1.0M | $3.0M | 0.0% | 1.415% | 2.49% |
| 15 | JACOBS LEVY EQUITY MANAGEMENT, INC | 1000K | $3.0M | +1.1% | 1.389% | 0.01% |
| 16 | WELLS FARGO & COMPANY/MN | 900K | $2.7M | +2.6% | 1.250% | 0.00% |
| 17 | Archon Capital Management LLC | 748K | $2.2M | +30.4% | 1.039% | 1.27% |
| 18 | Yorkville Advisors Global, LP | 635K | $1.9M | β | 0.882% | 1.30% |
| 19 | NORTHERN TRUST CORP | 595K | $1.8M | +3.4% | 0.827% | 0.00% |
| 20 | VANGUARD PORTFOLIO MANAGEMENT LLC | 590K | $1.8M | β | 0.820% | 0.00% |
| 21 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 586K | $1.8M | -5.8% | 0.814% | 0.00% |
| 22 | VANGUARD FIDUCIARY TRUST CO | 455K | $1.4M | β | 0.632% | 0.00% |
| 23 | SEI INVESTMENTS CO | 418K | $1.3M | +126.9% | 0.581% | 0.00% |
| 24 | GOLDMAN SACHS GROUP INC | 412K | $1.2M | +29.8% | 0.572% | 0.00% |
| 25 | MORGAN STANLEY | 374K | $1.1M | -29.3% | 0.520% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in OSUR β a direct measure of their conviction.
Filings activity in OSUR during Q1 2026, grouped by how each filer changed its position.
Institutions that opened a new OSUR position in Q1 2026
Institutions that fully closed their OSUR position in Q1 2026
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 137 | 0.7% | 49.90% | 13.41 pp | $150M | 21% |
| Q4 2025 | 138 | 3.5% | 63.31% | +2.88 pp | $190M | +4.8% |
| Q3 2025 | 143 | 7.7% | 60.43% | +0.29 pp | $182M | +0.5% |
| Q2 2025 | 155 | 13% | 60.14% | 8.35 pp | $181M | 12% |
| Q1 2025 | 178 | 5.3% | 68.49% | 0.54 pp | $206M | 0.8% |
| Q4 2024 | 188 | +1.6% | 69.03% | 12.91 pp | $208M | 16% |
| Q3 2024 | 185 | 12% | 81.94% | 2.74 pp | $246M | 3.2% |
| Q2 2024 | 210 | β | 84.68% | β | $255M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying OSUR stock.
Based on Q1 2026 13F filings, institutional ownership of OraSure Technologies, Inc. stands at 49.9%, held across 137 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of OSUR, with approximately 6,516,216 shares worth $0.02B as of Q1 2026.
Yes β 1 widely-followed marquee investor appear among the top 25 institutional holders of OSUR, including RENAISSANCE TECHNOLOGIES LLC.
Our composite Smart Money Score for OSUR is 35 out of 100 (Bearish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
25 institutions opened new positions in OSUR during Q1 2026, while 26 fully exited. 92 added to existing positions and 19 trimmed.
OSUR institutional ownership fell by 13.41 percentage points quarter-over-quarter, with a net change of -1 holders.
The top 10 institutions account for 64.4% of all reported 13F value in OSUR, and the top 25 account for 88.5%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
OraSure Technologies, Inc. (OSUR) Institutional Ownership