Comparable stake leader
BlackRock, Inc.
SEC ownership of Kosmos Energy Ltd.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001509991.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
01 Jul 2026
- Public ticker
- KOS on NYSE
- Parsed ownership sources
-
13F, 13D/G, and 3/4/5
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
BlackRock, Inc.
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
BlackRock, Inc.
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
01 Jul 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001509991
- Issuer location
- Dallas, TX
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of Kosmos Energy Ltd. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BlackRock, Inc.
Disclosed value leader
BlackRock, Inc.
Comparable rows
50/50
Latest evidence
01 Jul 2026
13F
13D/G
3/4/5
Lead comparable stake: 8.1%
13D/G row: BlackRock, Inc.
Showing 1-8 of 50 holder rows.
Quick read
BlackRock, Inc. leads the comparable SEC ownership view at 8.1%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BlackRock, Inc.'s linked filing trail.
Comparable ownership
Top 5
BlackRock, Inc.
8.1%
cobas asset management, sgiic, s.a.
5.2%
HOTCHKIS & WILEY CAPITAL MANAGEME...
4.4%
Grantham, Mayo, Van Otterloo & Co...
3.2%
AMERICAN CENTURY INVESTMENT MANAG...
2.4%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
Company
|
8.1%
from 13D/G
|
$131,947,401
47,463,094 shares
|
— | 31 Mar 2026 |
| cobas asset management, sgiic, s.a. |
13D/G
|
5.2%
|
$42,620,828
24,779,551 shares
|
$0 | 10 Apr 2025 |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC |
13F
13D/G
Company · Hotchkis and Wiley Capital Management, LLC
|
4.4%
from 13D/G
|
$55,743,451
20,051,601 shares
|
— | 31 Mar 2026 |
| Grantham, Mayo, Van Otterloo & Co. LLC |
13F
13D/G
Company
|
3.2%
from 13D/G
|
$50,895,456
18,307,718 shares
|
— | 31 Mar 2026 |
| AMERICAN CENTURY INVESTMENT MANAGEMENT INC |
13D/G
|
2.4%
|
$14,012,882
11,300,711 shares
|
-$27,416,815 | 31 Dec 2025 |
| FMR LLC |
13D/G
13F
Company
|
2.1%
|
$16,907,343
9,829,851 shares
|
$0 | 29 Nov 2024 |
| BlackRock Portfolio Management LLC |
13D/G
|
1.7%
|
$7,523,689
8,291,480 shares
|
-$19,976,061 | 31 Dec 2025 |
| VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. |
13F
13D/G
Company
|
0.84%
from 13D/G
|
$11,143,700
4,008,525 shares
|
— | 31 Mar 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to buying over the last 12 months. Net value: +$5,933,132.
Buys
$6,999,999
Insiders: 4
Sells
$1,066,867
Insiders: 7
Net
+$5,933,132
Shares: +3,116,786
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 3,684,210
Shares: 567,424
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 294,580 | $0 | $689,275 | -$689,275 |
| 3-6 | 3,684,210 | 0 | $6,999,999 | $0 | +$6,999,999 |
| 6-9 | 0 | 272,844 | $0 | $377,592 | -$377,592 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-16 of 16 reporting-owner rows connected to Kosmos Energy Ltd.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
16
Largest Forms 3/4/5 holder
Ogunlesi Adebayo O
Net 12M change
+$5,933,134
Latest report
01 Jul 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Ogunlesi Adebayo O | Director | $14,000,713 | +$6,000,001 | +75% | Mixed | 28 May 2026 |
| Andrew G. Inglis | Chairman and CEO, Director | $9,589,988 | +$218,594 | +2.3% | Filing P/S | 01 Jul 2026 |
| Jason Doughty | SVP and General Counsel | $7,040,510 | Filing P/S | 05 Feb 2024 | ||
| Richard Ryan Clark | SVP,Pres.Gulf of Mexico Unit | $5,858,393 | Mixed | 31 Jan 2023 | ||
| Christopher James Ball | SVP, Chief Commercial Officer | $5,116,566 | Filing P/S | 04 Feb 2025 | ||
| Nealesh D. Shah | SVP and CFO | $3,967,590 | +$96,105 | +2.5% | Filing P/S | 01 Jul 2026 |
| Steven Sterin | Director | $1,093,482 | -$105,476 | -8.8% | Mixed | 27 May 2026 |
| Lisa Ann Davis | Director | $957,754 | Mixed | 09 Jun 2021 | ||
| Sir Richard Billing Dearlove | Director | $892,954 | Mixed | 07 Jun 2023 | ||
| Deanna L. Goodwin | Director | $801,649 | Mixed | 28 May 2026 | ||
| J. Michael Stice | Director | $749,665 | +$99,999 | +15% | Mixed | 28 May 2026 |
| Ronald W. Glass | VP & Chief Accounting Officer | $735,334 | -$55,987 | -7.1% | Filing P/S | 01 Jul 2026 |
| Hanssen Maria Moraeus | Director | $621,869 | Mixed | 28 May 2026 | ||
| Roy A. Franklin | Director | $591,489 | -$118,662 | -17% | Mixed | 27 May 2026 |
| Josh R. Marion | SVP and General Counsel | $478,478 | -$82,778 | -15% | Filing P/S | 01 Jul 2026 |
| John Douglas Kelso Grant | Director | $401,306 | -$118,662 | -23% | Mixed | 27 May 2026 |
Recent insider transactions for Kosmos Energy Ltd.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Andrew G. Inglis | KOS | Common Stock | Sale | -1.8% | $176,167 | $2.05 | -85,935 | 4,678,043 | 02 Jul 2026 | Direct |
| Nealesh D. Shah | KOS | Common Stock | Sale | -2.32% | $94,259 | $2.05 | -45,980 | 1,935,410 | 02 Jul 2026 | Direct |
| Josh R. Marion | KOS | Common Stock | Sale | -9.66% | $51,186 | $2.05 | -24,969 | 233,404 | 02 Jul 2026 | Direct |
| Ronald W. Glass | KOS | Common Stock | Sale | -3.27% | $24,862 | $2.05 | -12,128 | 358,700 | 02 Jul 2026 | Direct |
| Andrew G. Inglis | KOS | Common Stock | Award | 4.87% | 221,171 | 4,763,978 | 01 Jul 2026 | Direct | ||
| Nealesh D. Shah | KOS | Common Stock | Award | 6.35% | 118,329 | 1,981,390 | 01 Jul 2026 | Direct | ||
| Josh R. Marion | KOS | Common Stock | Award | 33.1% | 64,248 | 258,373 | 01 Jul 2026 | Direct | ||
| Ronald W. Glass | KOS | Common Stock | Award | 9.19% | 31,196 | 370,828 | 01 Jul 2026 | Direct | ||
| John Douglas Kelso Grant | KOS | Common Stock | Award | 75.4% | 62,044 | 144,355 | 28 May 2026 | Direct | ||
| Steven Sterin | KOS | Common Stock | Award | 18.7% | 62,044 | 393,339 | 28 May 2026 | Direct | ||
| Roy A. Franklin | KOS | Common Stock | Award | 41.2% | 62,044 | 212,766 | 28 May 2026 | Direct | ||
| Roy A. Franklin | KOS | Common Stock | Sale | -22.4% | $118,662 | $2.73 | -43,466 | 150,722 | 28 May 2026 | Direct |
| J. Michael Stice | KOS | Common Stock | Award | 29.9% | 62,044 | 269,664 | 28 May 2026 | Direct | ||
| Deanna L. Goodwin | KOS | Common Stock | Award | 27.4% | 62,044 | 288,363 | 28 May 2026 | Direct | ||
| Hanssen Maria Moraeus | KOS | Common Stock | Award | 38.4% | 62,044 | 223,694 | 28 May 2026 | Direct | ||
| Ogunlesi Adebayo O | KOS | Common Stock | Award | 1.25% | 62,044 | 5,036,228 | 28 May 2026 | Direct | ||
| John Douglas Kelso Grant | KOS | Common Stock | Sale | -34.6% | $118,662 | $2.73 | -43,466 | 82,311 | 27 May 2026 | Direct |
| John Douglas Kelso Grant | KOS | Common Stock | Tax liability | -0.58% | -735 | 125,777 | 27 May 2026 | Direct | ||
| Steven Sterin | KOS | Common Stock | Sale | -10.4% | $105,476 | $2.73 | -38,636 | 331,295 | 27 May 2026 | Direct |
| Roy A. Franklin | KOS | Common Stock | Tax liability | -0.5% | -976 | 194,188 | 27 May 2026 | Direct | ||
| Ogunlesi Adebayo O | KOS | Common Stock | Purchase | 173.9% | $6,000,000 | $1.90 | 3,157,895 | 4,974,184 | 10 Mar 2026 | Direct |
| J. Michael Stice | KOS | Common Stock | Purchase | 34% | $99,999 | $1.90 | 52,631 | 207,620 | 10 Mar 2026 | Direct |
| Nealesh D. Shah | KOS | Common Stock | Purchase | 9.26% | $299,999 | $1.90 | 157,894 | 1,863,061 | 10 Mar 2026 | Direct |
| Andrew G. Inglis | KOS | Common Stock | Purchase | 7.47% | $600,001 | $1.90 | 315,790 | 4,542,807 | 10 Mar 2026 | Direct |
| Josh R. Marion | KOS | Common Stock | Sale | -1.66% | $4,663 | $1.42 | -3,284 | 194,125 | 04 Feb 2026 | Direct |
| Nealesh D. Shah | KOS | Common Stock | Sale | -1.43% | $35,060 | $1.42 | -24,690 | 1,705,167 | 04 Feb 2026 | Direct |
| Ronald W. Glass | KOS | Common Stock | Sale | -0.97% | $4,704 | $1.42 | -3,313 | 339,632 | 04 Feb 2026 | Direct |
| Andrew G. Inglis | KOS | Common Stock | Sale | -1.04% | $63,372 | $1.42 | -44,628 | 4,227,017 | 04 Feb 2026 | Direct |
| Josh R. Marion | KOS | Common Stock | Sale | -9.06% | $26,929 | $1.37 | -19,656 | 197,409 | 03 Feb 2026 | Direct |
| Josh R. Marion | KOS | Common Stock | Award | 3.66% | 7,661 | 217,065 | 03 Feb 2026 | Direct | ||
| Nealesh D. Shah | KOS | Common Stock | Sale | -3.05% | $74,575 | $1.37 | -54,434 | 1,729,857 | 03 Feb 2026 | Direct |
| Nealesh D. Shah | KOS | Common Stock | Award | 3.81% | 65,567 | 1,784,291 | 03 Feb 2026 | Direct | ||
| Ronald W. Glass | KOS | Common Stock | Sale | -5.32% | $26,420 | $1.37 | -19,285 | 342,945 | 03 Feb 2026 | Direct |
| Ronald W. Glass | KOS | Common Stock | Award | 2.18% | 7,732 | 362,230 | 03 Feb 2026 | Direct | ||
| Andrew G. Inglis | KOS | Common Stock | Sale | -2.37% | $141,869 | $1.37 | -103,554 | 4,271,645 | 03 Feb 2026 | Direct |
| Andrew G. Inglis | KOS | Common Stock | Award | 2.78% | 118,539 | 4,375,199 | 03 Feb 2026 | Direct | ||
| Josh R. Marion | KOS | Common Stock | Award | 38.4% | 58,080 | 209,404 | 31 Jan 2026 | Direct | ||
| Nealesh D. Shah | KOS | Common Stock | Award | 10.5% | 163,350 | 1,718,724 | 31 Jan 2026 | Direct | ||
| Ronald W. Glass | KOS | Common Stock | Award | 18.4% | 55,000 | 354,498 | 31 Jan 2026 | Direct | ||
| Andrew G. Inglis | KOS | Common Stock | Award | 7.52% | 297,660 | 4,256,660 | 31 Jan 2026 | Direct |
* marks a reported price that did not pass the local price check.