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 SLS
| 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 10, 2026 | SCHEDULE 13G | SLS SELLAS Life Sciences Group, Inc. | State Street Corporation | 10.37M | 5.1% | SCHEDULE 13G ↗ |
| Oct 27, 2026 | SCHEDULE 13G/A (amended) | SLS SELLAS Life Sciences Group, Inc. | BlackRock, Inc. | 15.87M | 7.9% | SCHEDULE 13G/A ↗ |
| Aug 7, 2026 | SCHEDULE 13G | SLS SELLAS Life Sciences Group, Inc. | State Street Corporation | 13.00M | 7.0% | SCHEDULE 13G ↗ |
| Jul 31, 2026 | SCHEDULE 13G | SLS SELLAS Life Sciences Group, Inc. | Vanguard Capital Management | 9.67M | 5.2% | SCHEDULE 13G ↗ |
| Apr 24, 2026 | SCHEDULE 13G/A (amended) | SLS SELLAS Life Sciences Group, Inc. | BlackRock, Inc. | 12.14M | 6.8% | SCHEDULE 13G/A ↗ |
| Mar 27, 2026 | SCHEDULE 13G/A (amended) | SLS SELLAS Life Sciences Group, Inc. | The Vanguard Group | 0 | 0.0% | SCHEDULE 13G/A ↗ |
| Feb 17, 2026 | SCHEDULE 13G/A (amended) | SLS SELLAS Life Sciences Group, Inc. | Moez Kassam | 7.48M | 4.9% | SCHEDULE 13G/A ↗ |
| Feb 17, 2026 | SCHEDULE 13G/A (amended) | SLS SELLAS Life Sciences Group, Inc. | Amin Nathoo | 7.48M | 4.9% | SCHEDULE 13G/A ↗ |
| Feb 17, 2026 | SCHEDULE 13G/A (amended) | SLS SELLAS Life Sciences Group, Inc. | Anson Advisors Inc. | 7.48M | 4.9% | SCHEDULE 13G/A ↗ |
| Feb 17, 2026 | SCHEDULE 13G/A (amended) | SLS SELLAS Life Sciences Group, Inc. | Tony Moore | 7.48M | 4.9% | SCHEDULE 13G/A ↗ |
| Feb 17, 2026 | SCHEDULE 13G/A (amended) | SLS SELLAS Life Sciences Group, Inc. | Anson Management GP LLC | 7.48M | 4.9% | SCHEDULE 13G/A ↗ |
| Feb 17, 2026 | SCHEDULE 13G/A (amended) | SLS SELLAS Life Sciences Group, Inc. | Anson Funds Management LP | 7.48M | 4.9% | SCHEDULE 13G/A ↗ |
| Jan 30, 2026 | SCHEDULE 13G/A (amended) | SLS SELLAS Life Sciences Group, Inc. | Highbridge Capital Management, LLC | 6.51M | 3.7% | SCHEDULE 13G/A ↗ |
| Nov 14, 2025 | SCHEDULE 13G | SLS SELLAS Life Sciences Group, Inc. | Moez Kassam | 6.03M | 5.7% | SCHEDULE 13G ↗ |
| Nov 14, 2025 | SCHEDULE 13G | SLS SELLAS Life Sciences Group, Inc. | Amin Nathoo | 6.03M | 5.7% | SCHEDULE 13G ↗ |
| Nov 14, 2025 | SCHEDULE 13G | SLS SELLAS Life Sciences Group, Inc. | Anson Advisors Inc. | 6.03M | 5.7% | SCHEDULE 13G ↗ |
| Nov 14, 2025 | SCHEDULE 13G | SLS SELLAS Life Sciences Group, Inc. | Tony Moore | 6.03M | 5.7% | SCHEDULE 13G ↗ |
| Nov 14, 2025 | SCHEDULE 13G | SLS SELLAS Life Sciences Group, Inc. | Anson Management GP LLC | 6.03M | 5.7% | SCHEDULE 13G ↗ |
| Nov 14, 2025 | SCHEDULE 13G | SLS SELLAS Life Sciences Group, Inc. | Anson Funds Management LP | 6.03M | 5.7% | SCHEDULE 13G ↗ |
| Oct 17, 2025 | SCHEDULE 13G | SLS SELLAS Life Sciences Group, Inc. | BlackRock, Inc. | 5.69M | 5.4% | SCHEDULE 13G ↗ |
| Aug 14, 2025 | SCHEDULE 13G/A (amended) | SLS SELLAS Life Sciences Group, Inc. | Moez Kassam | 5.23M | 4.9% | SCHEDULE 13G/A ↗ |
| Aug 14, 2025 | SCHEDULE 13G/A (amended) | SLS SELLAS Life Sciences Group, Inc. | Amin Nathoo | 5.23M | 4.9% | SCHEDULE 13G/A ↗ |
| Aug 14, 2025 | SCHEDULE 13G/A (amended) | SLS SELLAS Life Sciences Group, Inc. | Anson Advisors Inc. | 5.23M | 4.9% | SCHEDULE 13G/A ↗ |
| Aug 14, 2025 | SCHEDULE 13G/A (amended) | SLS SELLAS Life Sciences Group, Inc. | Tony Moore | 5.23M | 4.9% | SCHEDULE 13G/A ↗ |
| Aug 14, 2025 | SCHEDULE 13G/A (amended) | SLS SELLAS Life Sciences Group, Inc. | Anson Management GP LLC | 5.23M | 4.9% | SCHEDULE 13G/A ↗ |
| Aug 14, 2025 | SCHEDULE 13G/A (amended) | SLS SELLAS Life Sciences Group, Inc. | Anson Funds Management LP | 5.23M | 4.9% | SCHEDULE 13G/A ↗ |
| Jul 29, 2025 | SCHEDULE 13G | SLS SELLAS Life Sciences Group, Inc. | The Vanguard Group | 6.69M | 6.7% | SCHEDULE 13G ↗ |
| May 15, 2025 | SCHEDULE 13G | SLS SELLAS Life Sciences Group, Inc. | Moez Kassam | 7.58M | 8.3% | SCHEDULE 13G ↗ |
| May 15, 2025 | SCHEDULE 13G | SLS SELLAS Life Sciences Group, Inc. | Amin Nathoo | 7.58M | 8.3% | SCHEDULE 13G ↗ |
| May 15, 2025 | SCHEDULE 13G | SLS SELLAS Life Sciences Group, Inc. | Anson Advisors Inc. | 7.58M | 8.3% | SCHEDULE 13G ↗ |
| May 15, 2025 | SCHEDULE 13G | SLS SELLAS Life Sciences Group, Inc. | Tony Moore | 7.58M | 8.3% | SCHEDULE 13G ↗ |
| May 15, 2025 | SCHEDULE 13G | SLS SELLAS Life Sciences Group, Inc. | Anson Management GP LLC | 7.58M | 8.3% | SCHEDULE 13G ↗ |
| May 15, 2025 | SCHEDULE 13G | SLS SELLAS Life Sciences Group, Inc. | Anson Funds Management LP | 7.58M | 8.3% | SCHEDULE 13G ↗ |
33 items, most recent first (up to 50). Every row links to its original filing. Updated Nov 15, 2026, 5:38 PM EST.
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