Quick Takeaways
- Grantham, Mayo, Van Otterloo & Co. LLC filed SCHEDULE 13G/A for Kosmos Energy Ltd Common Stock (KOS).
- Disclosed ownership: 3.2%.
- Date of event: 31 Mar 2026.
Grantham, Mayo, Van Otterloo & Co. LLC - 31 Mar 2026 SCHEDULE 13G/A Report for Kosmos Energy Ltd Common Stock (KOS)
- Filing Manager
- Grantham, Mayo, Van Otterloo & Co. LLC
- Reporting Manager
- Grantham, Mayo, Van Otterloo & Co. LLC
- Security
- Kosmos Energy Ltd Common Stock
- Symbol
- KOS
- Shares outstanding
- 579,358,165 shares
- Disclosed Ownership
- 18,307,718 shares
- Ownership
- 3.2%
- Form type
- SCHEDULE 13G/A
- Filing time
- 01 May 2026, 13:25:47 UTC
- Date of event
- 31 Mar 2026
- Previous filing
- 05 Nov 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"Grantham, Mayo, Van Otterloo & Co. LLC disclosed 3.2% ownership in Kosmos Energy Ltd Common Stock (KOS) on 31 Mar 2026."
What Changed
- Previous schedule filing date: 05 Nov 2025.
- Current filing was accepted on 01 May 2026, 13:25.
Why This Matters
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Source Evidence
Backed by Schedule 13D/13G
See Original Filing
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
Reporting Managers (1)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| Grantham, Mayo, Van Otterloo & Co. LLC | 3.2% | 18,307,718 | 18,307,718 | 0 | Gregory L. Pottle | Chief Compliance Officer |