As of November 7, 2026, Kosmos Energy Ltd. is a publicly traded company (NYSE: KOS); its largest reported holder is BlackRock, with 8.1% on Schedule 13G/A of July 29, 2026. The largest insider holding is Adebayo O. Ogunlesi, a director, with 5,036,228 shares (0.85% of shares outstanding), per Form 4 of May 29, 2026. No bankruptcy or receivership appears in its SEC Form 8-K filings (Schedule 13G/A, July 29, 2026).
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Is Kosmos Energy Ltd. a real, registered company?
- Kosmos Energy Ltd. files with the SEC under CIK 1509991 (its SEC filings).
- Its shares are listed under the ticker KOS on NYSE (SEC company record).
- Incorporated in Delaware; business address in Dallas, Texas, as its SEC filings state.
- Court and bankruptcy records: see Before you sign or pay below.
Before you sign or pay
- Court and bankruptcy: No federal court case or bankruptcy filing found under Kosmos Energy Ltd. in our court records and SEC 8-K records (as of 2026-11-07).
- Ownership: 5%+ holders are reported on Schedule 13D or 13G; the latest names BlackRock (filed 2026-07-29).
Who are Kosmos Energy Ltd.'s owners and officers?
Kosmos Energy Ltd.: incorporated in Delaware; business address in Dallas, Texas; industry Crude Petroleum & Natural Gas (Schedule 13G, 2026-11-06).
| Report | Holder | Share |
|---|---|---|
| Schedule 13G, 2026-11-06 | Cobas Asset Management, Sgiic, S.A. | 4.9% |
| Schedule 13G/A, 2026-07-29 | Blackrock, Inc. | 8.1% |
| Schedule 13G/A, 2026-05-01 | Grantham, Mayo, Van Otterloo & Co. LLC | 3.16% |
| Schedule 13G/A, 2026-04-24 | Blackrock, Inc. | 6.7% |
| Schedule 13G/A, 2026-02-13 | American Century Investment Management, Inc. | 2.4% |
| Schedule 13G/A, 2026-01-21 | Blackrock Portfolio Management LLC | 1.7% |
| Schedule 13G/A, 2025-11-05 | Grantham, Mayo, Van Otterloo & Co. LLC | 7.27% |
| Schedule 13G/A, 2025-08-14 | American Century Investment Management, Inc. | 7% |
| Schedule 13G/A, 2025-08-13 | Hotchkis And Wiley Capital Management, LLC | 4.44% |
| Schedule 13G/A, 2025-07-15 | Blackrock Portfolio Management LLC | 6.3% |
Questions about who owns Kosmos Energy Ltd.
Who owns Kosmos Energy Ltd.?
On this page, one holder's latest ownership filing reports 5% or more of Kosmos Energy Ltd.: Blackrock, Inc. (8.1%, Schedule 13G/A, filed 2026-07-29).
When did Blackrock, Inc. buy into Kosmos Energy Ltd.?
The filings give report dates, not purchase dates. The earliest filing from Blackrock, Inc. on this page is the Schedule 13G/A, filed 2026-04-24, reporting 6.7%; its latest, Schedule 13G/A filed 2026-07-29, reports 8.1%. That earliest filing is itself an amendment, which updates an earlier report.
Is this an audit or a full list?
Neither. The ownership list on this page covers only Schedule 13D and 13G filings, which holders make once they own 5% or more of a class of shares (an amendment can report a stake that has since fallen below 5%); 10 such filings are shown here. It is not an audit and not a full cap table: holders who never reached 5% are not listed, and a stake can change after its latest filing.
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Which insiders own Kosmos Energy Ltd. shares?
Directors, officers and holders of 10% or more report their shares on Forms 3, 4 and 5. Each line is the latest such report, largest holding first.
- , a director: 5,036,228 shares (0.85% of shares outstanding) (Form 4, 2026-05-29).
- , the chairman and chief executive: 4,678,043 shares (0.79% of shares outstanding) (Form 4, 2026-07-06).
- , the chief financial officer and senior vice president: 1,935,410 shares (0.32% of shares outstanding) (Form 4, 2026-07-06).
- , the senior vice president and chief commercial officer: 1,639,925 shares (0.28% of shares outstanding) (Form 4, 2025-02-06).
- , a director: 393,339 shares (0.07% of shares outstanding) (Form 4, 2026-05-29).
Shares outstanding: 595,551,401 as of 2026-10-29, from the company's latest SEC cover page.
How much has Kosmos Energy Ltd. raised?
Acquisitions reported on Form 8-K, Item 2.01: completed an acquisition (2026-06-22).
Keep reading
More on Kosmos Energy Ltd. and the records around it.
Kosmos Energy Ltd. elsewhere on the record
- 5%+ stake filings Nov 2026
Companies that share a holder
- cobas asset management, sgiic, s.a. also filed stake reports on 2 other companies: Borr Drilling Ltd (Aug 2026)
- Grantham, Mayo, Van Otterloo & Co. LLC also filed stake reports on 6 other companies: Array Technologies Inc (Nov 2026), Clean Energy Fuels Corp (Aug 2026), Ameresco Inc (Feb 2026)
- Hotchkis and Wiley Capital Management, LLC also filed stake reports on 13 other companies: Global Indemnity Group, LLC (Aug 2026), National CineMedia, Inc. (Aug 2026), Ecovyst Inc. (May 2026)
Related pages
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Cite this page
https://mentionfox.com/who-owns/kosmos-energy