Feeds › Ownership stakes (13D / 13G)
Ownership stakes (13D / 13G)
Investors who own more than 5% of a company, from activists (13D) to passive holders (13G).
About this data
- What it is
- An investor who owns more than 5% of a public company must say so. Investors who may try to influence the company, such as activists, file the longer Schedule 13D; passive holders file the shorter Schedule 13G.
- Who files it
- The investor, within days of crossing 5%, and again whenever the stake changes materially.
- How current
- We collect new filings throughout the day on SEC business days.
- Worth knowing
- 13G filings are far more common than 13D. A 13D usually means the investor intends to push for changes, so it tends to get more attention.
All of this comes from public filings.
Source and freshness · Information, not investment advice (disclaimer).
Filings per day, last 30 days
13D (activist) 13G (passive)
Latest ownership filings
Showing: ticker OSUR
| Filed | ScheduleBoth report a stake of more than 5%. A 13D is filed by investors who may try to influence the company, such as activists; a 13G by passive holders. | Company | Investor | Shares | % of shares | Filing |
|---|---|---|---|---|---|---|
| Nov 9, 2026 | SCHEDULE 13G/A (amended) | OSUR OraSure Technologies, Inc. | Private Management Group Inc | 3.18M | 4.6% | SCHEDULE 13G/A ↗ |
| Oct 30, 2026 | SCHEDULE 13G/A (amended) | OSUR OraSure Technologies, Inc. | Vanguard Capital Management | 3.33M | 4.8% | SCHEDULE 13G/A ↗ |
| Sep 17, 2026 | SCHEDULE 13D | OSUR OraSure Technologies, Inc. | Mark Angelo | 3.92M | 5.7% | SCHEDULE 13D ↗ |
| Sep 17, 2026 | SCHEDULE 13D | OSUR OraSure Technologies, Inc. | Yaii GP II, LLC | 3.92M | 5.7% | SCHEDULE 13D ↗ |
| Sep 17, 2026 | SCHEDULE 13D | OSUR OraSure Technologies, Inc. | Yaii GP, LP | 3.92M | 5.7% | SCHEDULE 13D ↗ |
| Sep 17, 2026 | SCHEDULE 13D | OSUR OraSure Technologies, Inc. | Yorkville Advisors Global II, LLC | 3.92M | 5.7% | SCHEDULE 13D ↗ |
| Sep 17, 2026 | SCHEDULE 13D | OSUR OraSure Technologies, Inc. | Yorkville Advisors Global, LP | 3.92M | 5.7% | SCHEDULE 13D ↗ |
| Sep 17, 2026 | SCHEDULE 13D | OSUR OraSure Technologies, Inc. | YA Global Investments II (U.S.), LP | 3.92M | 5.7% | SCHEDULE 13D ↗ |
| Sep 17, 2026 | SCHEDULE 13D | OSUR OraSure Technologies, Inc. | YA II PN, Ltd. | 3.92M | 5.7% | SCHEDULE 13D ↗ |
| Sep 17, 2026 | SCHEDULE 13D | OSUR OraSure Technologies, Inc. | Joseph Aron Samuels | 490,000 | 0.7% | SCHEDULE 13D ↗ |
| Sep 17, 2026 | SCHEDULE 13D | OSUR OraSure Technologies, Inc. | Islet Management, LP | 490,000 | 0.7% | SCHEDULE 13D ↗ |
| Aug 12, 2026 | SCHEDULE 13G | OSUR OraSure Technologies, Inc. | Neil Gagnon | 8.87M | 5.8% | SCHEDULE 13G ↗ |
| Aug 12, 2026 | SCHEDULE 13G | OSUR OraSure Technologies, Inc. | Gagnon Advisors, LLC | 2.49M | 1.6% | SCHEDULE 13G ↗ |
| Aug 12, 2026 | SCHEDULE 13G | OSUR OraSure Technologies, Inc. | Gagnon Securities LLC | 5.26M | 3.4% | SCHEDULE 13G ↗ |
| Jul 31, 2026 | SCHEDULE 13G/A (amended) | OSUR OraSure Technologies, Inc. | Private Management Group Inc | 3.80M | 5.5% | SCHEDULE 13G/A ↗ |
| Apr 30, 2026 | SCHEDULE 13G | OSUR OraSure Technologies, Inc. | Vanguard Capital Management | 3.48M | 5.0% | SCHEDULE 13G ↗ |
| Apr 20, 2026 | SCHEDULE 13D/A (amended) | OSUR OraSure Technologies, Inc. | Rishi Bajaj | 3.61M | 5.2% | SCHEDULE 13D/A ↗ |
| Apr 20, 2026 | SCHEDULE 13D/A (amended) | OSUR OraSure Technologies, Inc. | Altai Capital Management, LLC | 3.61M | 5.2% | SCHEDULE 13D/A ↗ |
| Apr 20, 2026 | SCHEDULE 13D/A (amended) | OSUR OraSure Technologies, Inc. | Altai Capital Management, L.P. | 3.61M | 5.2% | SCHEDULE 13D/A ↗ |
| Apr 8, 2026 | SCHEDULE 13G | OSUR OraSure Technologies, Inc. | Neil Gagnon | 3.75M | 5.4% | SCHEDULE 13G ↗ |
| Apr 8, 2026 | SCHEDULE 13G | OSUR OraSure Technologies, Inc. | Gagnon Advisors, LLC | 1.21M | 1.7% | SCHEDULE 13G ↗ |
| Apr 8, 2026 | SCHEDULE 13G | OSUR OraSure Technologies, Inc. | Gagnon Securities LLC | 1.93M | 2.8% | SCHEDULE 13G ↗ |
| Mar 27, 2026 | SCHEDULE 13G/A (amended) | OSUR OraSure Technologies, Inc. | The Vanguard Group | 0 | 0.0% | SCHEDULE 13G/A ↗ |
| Mar 17, 2026 | SCHEDULE 13D/A (amended) | OSUR OraSure Technologies, Inc. | Rishi Bajaj | 3.61M | 5.2% | SCHEDULE 13D/A ↗ |
| Mar 17, 2026 | SCHEDULE 13D/A (amended) | OSUR OraSure Technologies, Inc. | Altai Capital Management, LLC | 3.61M | 5.2% | SCHEDULE 13D/A ↗ |
| Mar 17, 2026 | SCHEDULE 13D/A (amended) | OSUR OraSure Technologies, Inc. | Altai Capital Management, L.P. | 3.61M | 5.2% | SCHEDULE 13D/A ↗ |
| Feb 12, 2026 | SCHEDULE 13G/A (amended) | OSUR OraSure Technologies, Inc. | Neil Gagnon | 3.57M | 4.9% | SCHEDULE 13G/A ↗ |
| Feb 12, 2026 | SCHEDULE 13G/A (amended) | OSUR OraSure Technologies, Inc. | Gagnon Advisors, LLC | 1.21M | 1.7% | SCHEDULE 13G/A ↗ |
| Feb 12, 2026 | SCHEDULE 13G/A (amended) | OSUR OraSure Technologies, Inc. | Gagnon Securities LLC | 1.74M | 2.4% | SCHEDULE 13G/A ↗ |
| Jan 15, 2026 | SCHEDULE 13D/A (amended) | OSUR OraSure Technologies, Inc. | Rishi Bajaj | 3.74M | 5.2% | SCHEDULE 13D/A ↗ |
| Jan 15, 2026 | SCHEDULE 13D/A (amended) | OSUR OraSure Technologies, Inc. | Altai Capital Management, LLC | 3.74M | 5.2% | SCHEDULE 13D/A ↗ |
| Jan 15, 2026 | SCHEDULE 13D/A (amended) | OSUR OraSure Technologies, Inc. | Altai Capital Management, L.P. | 3.74M | 5.2% | SCHEDULE 13D/A ↗ |
| Dec 17, 2025 | SCHEDULE 13D/A (amended) | OSUR OraSure Technologies, Inc. | Rishi Bajaj | 3.74M | 5.2% | SCHEDULE 13D/A ↗ |
| Dec 17, 2025 | SCHEDULE 13D/A (amended) | OSUR OraSure Technologies, Inc. | Altai Capital Management, LLC | 3.74M | 5.2% | SCHEDULE 13D/A ↗ |
| Dec 17, 2025 | SCHEDULE 13D/A (amended) | OSUR OraSure Technologies, Inc. | Altai Capital Management, L.P. | 3.74M | 5.2% | SCHEDULE 13D/A ↗ |
| Nov 17, 2025 | SCHEDULE 13G | OSUR OraSure Technologies, Inc. | Neil Gagnon | 3.59M | 5.0% | SCHEDULE 13G ↗ |
| Nov 17, 2025 | SCHEDULE 13G | OSUR OraSure Technologies, Inc. | Gagnon Advisors, LLC | 1.21M | 1.7% | SCHEDULE 13G ↗ |
| Nov 17, 2025 | SCHEDULE 13G | OSUR OraSure Technologies, Inc. | Gagnon Securities LLC | 1.77M | 2.5% | SCHEDULE 13G ↗ |
| Oct 9, 2025 | SCHEDULE 13G/A (amended) | OSUR OraSure Technologies, Inc. | Dimensional Fund Advisors LP | 3.64M | 5.0% | SCHEDULE 13G/A ↗ |
| Sep 9, 2025 | SCHEDULE 13D | OSUR OraSure Technologies, Inc. | Rishi Bajaj | 3.75M | 5.1% | SCHEDULE 13D ↗ |
| Sep 9, 2025 | SCHEDULE 13D | OSUR OraSure Technologies, Inc. | Altai Capital Management, LLC | 3.75M | 5.1% | SCHEDULE 13D ↗ |
| Sep 9, 2025 | SCHEDULE 13D | OSUR OraSure Technologies, Inc. | Altai Capital Management, L.P. | 3.75M | 5.1% | SCHEDULE 13D ↗ |
| Sep 3, 2025 | SCHEDULE 13G/A (amended) | OSUR OraSure Technologies, Inc. | Earnest Partners LLC | 795 | 0.0% | SCHEDULE 13G/A ↗ |
| Jul 30, 2025 | SCHEDULE 13G/A (amended) | OSUR OraSure Technologies, Inc. | Private Management Group Inc | 5.46M | 7.3% | SCHEDULE 13G/A ↗ |
| May 15, 2025 | SCHEDULE 13G/A (amended) | OSUR OraSure Technologies, Inc. | Stephen DuBois | 900,000 | 1.2% | SCHEDULE 13G/A ↗ |
| May 15, 2025 | SCHEDULE 13G/A (amended) | OSUR OraSure Technologies, Inc. | Camber Capital Management LP | 900,000 | 1.2% | SCHEDULE 13G/A ↗ |
| May 5, 2025 | SCHEDULE 13G | OSUR OraSure Technologies, Inc. | Private Management Group Inc | 4.42M | 5.9% | SCHEDULE 13G ↗ |
| Apr 23, 2025 | SCHEDULE 13G/A (amended) | OSUR OraSure Technologies, Inc. | BlackRock, Inc. | 5.40M | 7.2% | SCHEDULE 13G/A ↗ |
| Apr 4, 2025 | SCHEDULE 13G | OSUR OraSure Technologies, Inc. | Neuberger Berman Investment Advisers LLC | 3.97M | 5.3% | SCHEDULE 13G ↗ |
| Apr 4, 2025 | SCHEDULE 13G | OSUR OraSure Technologies, Inc. | Neuberger Berman Group LLC | 4.28M | 5.7% | SCHEDULE 13G ↗ |
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