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 KOS
| 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 | KOS Kosmos Energy Ltd. | State Street Corporation | 32.07M | 5.4% | SCHEDULE 13G ↗ |
| Nov 6, 2026 | SCHEDULE 13G | KOS Kosmos Energy Ltd. | Cobas Asset Management, Sgiic, S.A. | 29.41M | 4.9% | SCHEDULE 13G ↗ |
| Jul 29, 2026 | SCHEDULE 13G/A (amended) | KOS Kosmos Energy Ltd. | BlackRock, Inc. | 47.92M | 8.1% | SCHEDULE 13G/A ↗ |
| May 1, 2026 | SCHEDULE 13G/A (amended) | KOS Kosmos Energy Ltd. | Grantham, Mayo, Van Otterloo & Co. LLC | 18.31M | 3.2% | SCHEDULE 13G/A ↗ |
| Apr 24, 2026 | SCHEDULE 13G/A (amended) | KOS Kosmos Energy Ltd. | BlackRock, Inc. | 39.81M | 6.7% | SCHEDULE 13G/A ↗ |
| Feb 13, 2026 | SCHEDULE 13G/A (amended) | KOS Kosmos Energy Ltd. | Stowers Institute for Medical Research | 11.30M | 2.4% | SCHEDULE 13G/A ↗ |
| Feb 13, 2026 | SCHEDULE 13G/A (amended) | KOS Kosmos Energy Ltd. | American Century Companies, Inc. | 11.30M | 2.4% | SCHEDULE 13G/A ↗ |
| Feb 13, 2026 | SCHEDULE 13G/A (amended) | KOS Kosmos Energy Ltd. | American Century Investment Management, Inc. | 11.30M | 2.4% | SCHEDULE 13G/A ↗ |
| Jan 21, 2026 | SCHEDULE 13G/A (amended) | KOS Kosmos Energy Ltd. | BlackRock Portfolio Management LLC | 8.29M | 1.7% | SCHEDULE 13G/A ↗ |
| Nov 5, 2025 | SCHEDULE 13G/A (amended) | KOS Kosmos Energy Ltd. | Grantham, Mayo, Van Otterloo & Co. LLC | 34.78M | 7.3% | SCHEDULE 13G/A ↗ |
| Aug 14, 2025 | SCHEDULE 13G/A (amended) | KOS Kosmos Energy Ltd. | Stowers Institute for Medical Research | 33.41M | 7.0% | SCHEDULE 13G/A ↗ |
| Aug 14, 2025 | SCHEDULE 13G/A (amended) | KOS Kosmos Energy Ltd. | American Century Companies, Inc. | 33.41M | 7.0% | SCHEDULE 13G/A ↗ |
| Aug 14, 2025 | SCHEDULE 13G/A (amended) | KOS Kosmos Energy Ltd. | American Century Investment Management, Inc. | 33.41M | 7.0% | SCHEDULE 13G/A ↗ |
| Aug 13, 2025 | SCHEDULE 13G/A (amended) | KOS Kosmos Energy Ltd. | Hotchkis and Wiley Capital Management, LLC | 21.21M | 4.4% | SCHEDULE 13G/A ↗ |
| Jul 15, 2025 | SCHEDULE 13G/A (amended) | KOS Kosmos Energy Ltd. | BlackRock Portfolio Management LLC | 30.31M | 6.3% | SCHEDULE 13G/A ↗ |
| May 14, 2025 | SCHEDULE 13G | KOS Kosmos Energy Ltd. | Hotchkis and Wiley Capital Management, LLC | 25.53M | 5.3% | SCHEDULE 13G ↗ |
| May 1, 2025 | SCHEDULE 13G/A (amended) | KOS Kosmos Energy Ltd. | Grantham, Mayo, Van Otterloo & Co. LLC | 39.89M | 8.3% | SCHEDULE 13G/A ↗ |
| May 1, 2025 | SCHEDULE 13G/A (amended) | KOS Kosmos Energy Ltd. | Grantham, Mayo, Van Otterloo & Co. LLC | 39.89M | 8.3% | SCHEDULE 13G/A ↗ |
| Apr 23, 2025 | SCHEDULE 13G | KOS Kosmos Energy Ltd. | Cobas Asset Management, Sgiic, S.A. | 24.78M | 5.2% | SCHEDULE 13G ↗ |
| Apr 17, 2025 | SCHEDULE 13G/A (amended) | KOS Kosmos Energy Ltd. | Vaughan Nelson Investment Management, Inc. | 4.03M | 0.8% | SCHEDULE 13G/A ↗ |
| Apr 17, 2025 | SCHEDULE 13G/A (amended) | KOS Kosmos Energy Ltd. | Vaughan Nelson Investment Management, L.P. | 4.03M | 0.8% | SCHEDULE 13G/A ↗ |
| Apr 16, 2025 | SCHEDULE 13G/A (amended) | KOS Kosmos Energy Ltd. | BlackRock, Inc. | 37.76M | 7.9% | SCHEDULE 13G/A ↗ |
| Apr 15, 2025 | SCHEDULE 13G | KOS Kosmos Energy Ltd. | BlackRock Portfolio Management LLC | 25.04M | 5.2% | SCHEDULE 13G ↗ |
| Feb 12, 2025 | SCHEDULE 13G/A (amended) | KOS Kosmos Energy Ltd. | Grantham, Mayo, Van Otterloo & Co. LLC | 32.63M | 6.9% | SCHEDULE 13G/A ↗ |
| Feb 5, 2025 | SCHEDULE 13G/A (amended) | KOS Kosmos Energy Ltd. | BlackRock, Inc. | 56.66M | 12.0% | SCHEDULE 13G/A ↗ |
| Jan 30, 2025 | SCHEDULE 13G/A (amended) | KOS Kosmos Energy Ltd. | Vaughan Nelson Investment Management, Inc. | 25.11M | 5.3% | SCHEDULE 13G/A ↗ |
| Jan 30, 2025 | SCHEDULE 13G/A (amended) | KOS Kosmos Energy Ltd. | Vaughan Nelson Investment Management, L.P. | 25.11M | 5.3% | SCHEDULE 13G/A ↗ |
27 items, most recent first (up to 50). Every row links to its original filing. Updated Nov 15, 2026, 5:30 PM EST.
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