| Filer | Ownership | Change % | Holdings Value | Net Change | Nb Shares | Change % | Reporting Name | Report Period |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. | 7.9% | -34% | $69,852,154 | -$34,969,834 | 37,757,921 | -33% | BlackRock, Inc. | 31 Mar 2025 |
| Grantham, Mayo, Van Otterloo & Co. LLC | 7.3% | -13% | $57,736,405 | -$8,477,389 | 34,780,967 | -13% | Grantham, Mayo, Van Otterloo & Co. LLC | 30 Sep 2025 |
| AMERICAN CENTURY INVESTMENT MANAGEMENT INC | 7% | $61,142,214 | 33,411,046 | American Century Investment Management, Inc. | 30 Jun 2025 | |||
| cobas asset management, sgiic, s.a. | 5.2% | $45,842,169 | 24,779,551 | cobas asset management, sgiic, s.a. | 10 Apr 2025 | |||
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | 4.4% | -18% | $38,815,533 | -$7,899,061 | 21,210,674 | -17% | Hotchkis and Wiley Capital Management, LLC | 30 Jun 2025 |
| FMR LLC | 2.1% | $18,185,224 | 9,829,851 | FMR LLC | 29 Nov 2024 | |||
| BlackRock Portfolio Management LLC | 1.7% | -77% | $7,523,689 | -$19,976,061 | 8,291,480 | -73% | BlackRock Portfolio Management LLC | 31 Dec 2025 |
| VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. | 0.84% | -90% | $7,457,655 | -$39,000,533 | 4,031,165 | -84% | Vaughan Nelson Investment Management, L.P. | 31 Mar 2025 |
As of 30 Sep 2025, 231 institutional investors reported holding 397,535,133 shares of Kosmos Energy Ltd. - Common Stock (KOS). This represents 82% of the company’s total 487,734,118 outstanding shares.
The largest institutional shareholders of Kosmos Energy Ltd. - Common Stock (KOS) together control 69% of the company’s outstanding shares — a level of ownership often associated with strong institutional conviction and long‑term capital commitment.
| Institution | Ownership % | Shares Held | Share Change % | Portfolio % | Holdings Value |
|---|---|---|---|---|---|
| BlackRock, Inc. | 14% | 68,910,135 | +1% | 0% | $114,390,824 |
| Grantham, Mayo, Van Otterloo & Co. LLC | 7.1% | 34,780,967 | -5.5% | 0.16% | $57,736,405 |
| AMERICAN CENTURY COMPANIES INC | 6.2% | 30,375,723 | -9.1% | 0.03% | $50,423,702 |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC | 4.3% | 20,995,501 | -1% | 0.11% | $34,852,532 |
| STATE STREET CORP | 4% | 19,406,607 | +19% | 0% | $32,214,968 |
| Equinox Partners Investment Management LLC | 3.6% | 17,780,480 | -4.8% | 16% | $29,515,597 |
| MILLENNIUM MANAGEMENT LLC | 3.3% | 16,179,448 | +111% | 0.02% | $26,857,884 |
| VANGUARD GROUP INC | 2.9% | 14,320,597 | +2% | 0% | $23,772,191 |
| BANK OF AMERICA CORP /DE/ | 2.3% | 11,328,905 | +40% | 0% | $18,805,983 |
| GEODE CAPITAL MANAGEMENT, LLC | 2.1% | 10,440,289 | -7.3% | 0% | $17,333,413 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 2.1% | 10,082,657 | +16% | 0% | $16,737,211 |
| Invesco Ltd. | 2% | 9,903,093 | +3% | 0% | $16,439,135 |
| M&G PLC | 1.6% | 7,978,144 | +38% | 0.09% | $15,956,288 |
| DIMENSIONAL FUND ADVISORS LP | 1.6% | 7,611,298 | -24% | 0% | $12,634,930 |
| UBS Group AG | 1.5% | 7,325,352 | -10% | 0% | $12,160,084 |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 1.4% | 6,750,611 | +2.5% | 0.03% | $11,206,000 |
| CITADEL ADVISORS LLC | 1.4% | 6,625,521 | -30% | 0.01% | $10,998,365 |
| MORGAN STANLEY | 1.3% | 6,250,604 | -5.6% | 0% | $10,376,002 |
| Russell Investments Group, Ltd. | 1.3% | 6,239,726 | -3.5% | 0.01% | $10,357,943 |
| FIRST TRUST ADVISORS LP | 0.87% | 4,222,679 | +14% | 0.01% | $7,009,647 |
| NORTHERN TRUST CORP | 0.85% | 4,134,411 | +1.1% | 0% | $6,863,122 |
| VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. | 0.82% | 4,008,525 | 0% | 0.06% | $6,654,152 |
| OSTRUM ASSET MANAGEMENT | 0.82% | 4,008,525 | 0% | 0.3% | $6,654,152 |
| UBS AM, A DISTINCT BUSINESS UNIT OF UBS ASSET MANAGEMENT AMERICAS LLC | 0.73% | 3,575,742 | -1.2% | 0% | $5,935,733 |
| Patient Capital Management, LLC | 0.68% | 3,314,653 | -83% | 0.22% | $5,502,324 |
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 4,534,407 | $4,113,842 | -$2,963,343 | $0.91 | 12 |
| 2025 Q3 | 397,535,133 | $662,644,534 | -$27,362,623 | $1.66 | 231 |
| 2025 Q2 | 414,211,946 | $714,260,765 | -$53,936,568 | $1.72 | 223 |
| 2025 Q1 | 435,420,001 | $990,832,075 | -$24,178,620 | $2.28 | 247 |
| 2024 Q4 | 433,291,305 | $1,479,207,501 | -$41,736,065 | $3.42 | 264 |
| 2024 Q3 | 444,009,143 | $1,789,335,467 | -$36,880,045 | $4.03 | 265 |
| 2024 Q2 | 445,708,919 | $2,471,848,005 | -$49,620,188 | $5.54 | 269 |
| 2024 Q1 | 454,577,942 | $2,709,475,090 | +$127,988,526 | $5.96 | 243 |
| 2023 Q4 | 1,174,367 | $7,880,002 | +$3,568,713 | $6.71 | 4 |
| 2023 Q3 | 427,953,119 | $3,497,209,952 | +$113,137,616 | $8.18 | 217 |
| 2023 Q2 | 419,133,442 | $2,511,766,418 | -$36,782,673 | $5.99 | 232 |
| 2023 Q1 | 424,149,940 | $3,153,202,963 | +$174,813,685 | $7.44 | 228 |
| 2022 Q4 | 396,365,388 | $2,521,139,068 | -$2,305,345 | $6.36 | 227 |
| 2022 Q3 | 391,105,719 | $2,021,911,357 | +$15,732,784 | $5.17 | 208 |
| 2022 Q2 | 394,534,413 | $2,441,590,507 | +$5,372,908 | $6.19 | 218 |
| 2022 Q1 | 392,720,169 | $2,822,452,236 | +$139,356,899 | $7.19 | 192 |
| 2021 Q4 | 372,404,226 | $1,288,359,086 | +$190,452,880 | $3.46 | 161 |
| 2021 Q3 | 319,653,350 | $943,596,890 | -$18,795,701 | $2.96 | 151 |
| 2021 Q2 | 323,861,148 | $1,115,088,409 | -$8,272,674 | $3.46 | 163 |
| 2021 Q1 | 327,743,347 | $1,004,832,087 | +$14,856,777 | $3.07 | 133 |
| 2020 Q4 | 323,220,443 | $755,731,249 | -$2,761,591 | $2.35 | 123 |
| 2020 Q3 | 274,396,062 | $269,669,360 | -$28,956,810 | $0.98 | 119 |
| 2020 Q2 | 325,230,406 | $542,450,979 | +$15,856,529 | $1.66 | 140 |
| 2020 Q1 | 308,864,568 | $278,435,750 | -$207,310,500 | $0.90 | 143 |
| 2019 Q4 | 367,541,422 | $2,096,795,230 | -$138,303,301 | $5.70 | 194 |
| 2019 Q3 | 374,740,649 | $2,335,742,355 | -$67,464,902 | $6.24 | 169 |
| 2019 Q2 | 387,117,586 | $2,424,133,549 | +$68,880,369 | $6.27 | 166 |
| 2019 Q1 | 377,983,501 | $2,354,312,305 | +$266,256,536 | $6.23 | 162 |
| 2018 Q4 | 339,322,731 | $1,380,934,754 | +$1,368,083,497 | $4.07 | 129 |
| 2018 Q3 | 2,855,405 | $26,698,000 | +$26,698,037 | $9.35 | 1 |