Kosmos Energy Ltd (KOS)
Who owns Kosmos Energy Ltd (KOS)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 96.3% of the shares are freely tradable; institutional investors hold 81.4%.
Ownership Structure
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 8.00 | 47,463,094 | +1.3 | 03/31/2026 |
| State Street Corp | 4.76 | 28,247,797 | +38.3 | 03/31/2026 |
| Mason Hill Asset Management Incet AL | 3.49 | 20,678,033 | +6.2 | 03/31/2026 |
| D. E. Shaw & Co LP | 3.44 | 20,385,745 | +241.7 | 03/31/2026 |
| Hotchkis & Wiley Capital Management LLC | 3.38 | 20,051,601 | -0.3 | 03/31/2026 |
| Two Sigma Investments LLC | 3.15 | 18,680,328 | +384.5 | 03/31/2026 |
| Grantham, Mayo, Van Otterloo & Co., LLC | 3.09 | 18,307,718 | -47.4 | 03/31/2026 |
| Charles Schwab Investment Management Inc | 2.38 | 14,135,448 | +17.3 | 03/31/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| SttStrtSPDRS&POil&GasExplor&ProdtnETF | 2.87 | 17,035,356 | +0.0 | 07/29/2026 |
| iShares Russell 2000 ETF | 2.61 | 15,471,408 | +1.1 | 07/28/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: July 31, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.