Kosmos Energy Ltd. (KOS) — Institutional Holders, Q2 2026
278 institutional investment managers reported a KOS position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $1.2B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
KOS in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- BlackRockAdded · +8,560,427 sh+$18.1M
- AMERICAN CENTURY COMPANIESAdded · +7,938,277 sh+$16.7M
- TWO SIGMA INVESTMENTSAdded · +6,717,764 sh+$14.2M
- Bridgewater AssociatesNew · +4,720,550 sh+$10.0M
- GEODE CAPITAL MANAGEMENTAdded · +4,352,553 sh+$9.2M
Biggest sellers
- JANE STREET GROUPTrimmed · -11,649,778 sh-$24.6M
- Grantham, Mayo, Van OtterlooTrimmed · -6,457,594 sh-$13.6M
- MILLENNIUM MANAGEMENTTrimmed · -5,203,209 sh-$11.0M
- CITADEL ADVISORSTrimmed · -4,255,167 sh-$9.0M
- Monaco Asset Management SAMSold out · -4,045,884 sh-$8.5M
KOS 13F holders ranked 1–100 of 278
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | BlackRock#1 · 63,273,521 sh | 63,273,521 | $123.6M | <0.01% | +22.1% |
| 2 | D. E. Shaw#2 · 73,972,308 sh | 73,972,308 | $87.8M | 0.04% | +46.9% |
| 3 | STATE STREET#3 · 36,803,016 sh | 36,803,016 | $67.6M | <0.01% | +2.8% |
| 4 | TWO SIGMA INVESTMENTS#4 · 40,569,092 sh | 40,569,092 | $64.9M | 0.05% | +71.3% |
| 5 | LMR Partners LLP#5 · 60,475,351 sh | 60,475,351 | $46.6M | 0.17% | +0.8% |
| 6 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AME#6 · 56,881,727 sh | 56,881,727 | $45.6M | <0.01% | +1269.4% |
| 7 | Equinox Partners Investment Management#7 · 20,678,033 sh | 20,678,033 | $43.6M | 20.54% | 0.0% |
| 8 | HOTCHKIS & WILEY CAPITAL MANAGEMENT#8 · 18,844,781 sh | 18,844,781 | $39.8M | 0.12% | -6.0% |
| 9 | FMR#9 · 48,604,134 sh | 48,604,134 | $37.8M | <0.01% | +5.2% |
| 10 | GEODE CAPITAL MANAGEMENT#10 · 17,066,608 sh | 17,066,608 | $36.0M | <0.01% | +34.2% |
| 11 | ADAGE CAPITAL PARTNERS GP, L.L.C.#11 · 41,392,000 sh | 41,392,000 | $30.1M | 0.04% | -0.4% |
| 12 | CHARLES SCHWAB INVESTMENT MANAGEMENT#12 · 13,769,666 sh | 13,769,666 | $29.1M | <0.01% | -2.6% |
| 13 | VANGUARD PORTFOLIO MANAGEMENT#13 · 12,000,418 sh | 12,000,418 | $25.3M | <0.01% | +39.2% |
| 14 | Grantham, Mayo, Van Otterloo#14 · 11,850,124 sh | 11,850,124 | $25.0M | 0.06% | -35.3% |
| 15 | Invesco Ltd.#15 · 10,949,038 sh | 10,949,038 | $23.1M | <0.01% | -1.8% |
| 16 | Converium Capital#16 · 28,300,000 sh | 28,300,000 | $21.4M | 2.74% | 0.0% |
| 17 | DIMENSIONAL FUND ADVISORS#17 · 9,582,883 sh | 9,582,883 | $20.2M | <0.01% | +35.3% |
| 18 | GOLDMAN SACHS GROUP#18 · 8,531,947 sh | 8,531,947 | $18.0M | <0.01% | -7.9% |
| 19 | MILLENNIUM MANAGEMENT#19 · 9,171,695 sh | 9,171,695 | $17.0M | <0.01% | -27.4% |
| 20 | AMERICAN CENTURY COMPANIES#20 · 8,036,479 sh | 8,036,479 | $17.0M | <0.01% | +8083.6% |
| 21 | DAVIDSON KEMPNER CAPITAL MANAGEMENT#21 · 8,000,323 sh | 8,000,323 | $16.9M | 0.20% | -5.0% |
| 22 | MORGAN STANLEY#22 · 7,360,428 sh | 7,360,428 | $15.5M | <0.01% | +26.1% |
| 23 | Nuveen#23 · 7,330,487 sh | 7,330,487 | $15.5M | <0.01% | +121.2% |
| 24 | M&G Plc#24 · 7,409,687 sh | 7,409,687 | $14.8M | 0.07% | +5.4% |
| 25 | RENAISSANCE TECHNOLOGIES#25 · 7,008,668 sh | 7,008,668 | $14.8M | 0.02% | +31.3% |
| 26 | VANGUARD CAPITAL MANAGEMENT#26 · 6,812,762 sh | 6,812,762 | $14.4M | <0.01% | +6.1% |
| 27 | UBS Group AG#27 · 7,784,462 sh | 7,784,462 | $14.1M | <0.01% | +19.4% |
| 28 | BTG Pactual Asset Management US#28 · 15,705,000 sh | 15,705,000 | $11.5M | 0.72% | 0.0% |
| 29 | NORTHERN#29 · 5,312,419 sh | 5,312,419 | $11.2M | <0.01% | +25.5% |
| 30 | Walleye Capital#30 · 13,688,000 sh | 13,688,000 | $10.4M | 0.04% | -1.3% |
| 31 | Lombard Odier Asset Management (USA)#31 · 14,000,000 sh | 14,000,000 | $10.3M | 1.41% | 0.0% |
| 32 | Bridgewater Associates#32 · 4,720,550 sh | 4,720,550 | $10.0M | 0.04% | New |
| 33 | Boston Partners#33 · 4,097,453 sh | 4,097,453 | $8.9M | <0.01% | -13.9% |
| 34 | AQR CAPITAL MANAGEMENT#34 · 4,087,736 sh | 4,087,736 | $8.6M | <0.01% | +216.3% |
| 35 | FIRST ADVISORS#35 · 4,013,283 sh | 4,013,283 | $8.5M | <0.01% | -47.8% |
| 36 | VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P.#36 · 4,008,525 sh | 4,008,525 | $8.5M | 0.07% | 0.0% |
| 37 | OSTRUM ASSET MANAGEMENT#37 · 4,008,525 sh | 4,008,525 | $8.5M | 0.41% | 0.0% |
| 38 | VANGUARD FIDUCIARY#38 · 3,481,976 sh | 3,481,976 | $7.3M | <0.01% | +7.7% |
| 39 | SUSQUEHANNA INTERNATIONAL GROUP, LLP#39 · 3,356,675 sh | 3,356,675 | $7.1M | <0.01% | +43.0% |
| 40 | Capula Management Ltd#40 · 8,500,000 sh | 8,500,000 | $6.2M | 0.02% | New |
| 41 | BANK OF AMERICA#41 · 2,932,515 sh | 2,932,515 | $6.2M | <0.01% | -47.1% |
| 42 | GeoSphere Capital Management#42 · 2,813,788 sh | 2,813,788 | $5.9M | 1.94% | +38.0% |
| 43 | Russell Investments Group, Ltd.#43 · 2,643,845 sh | 2,643,845 | $5.6M | <0.01% | -54.9% |
| 44 | DEUTSCHE BANK AG\#44 · 5,754,362 sh | 5,754,362 | $5.3M | <0.01% | -37.1% |
| 45 | ALGERT GLOBAL#45 · 2,490,698 sh | 2,490,698 | $5.3M | 0.06% | +98.2% |
| 46 | WELLS FARGO & COMPANY#46 · 2,057,790 sh | 2,057,790 | $4.3M | <0.01% | +31.9% |
| 47 | NOMURA#47 · 2,029,307 sh | 2,029,307 | $4.3M | <0.01% | -13.8% |
| 48 | Ballast Asset Management#48 · 2,008,153 sh | 2,008,153 | $4.2M | 1.69% | -1.0% |
| 49 | SSI INVESTMENT MANAGEMENT#49 · 5,824,000 sh | 5,824,000 | $4.2M | 0.25% | 0.0% |
| 50 | Point72 Asset Management, L.P.#50 · 1,977,722 sh | 1,977,722 | $4.2M | <0.01% | +0.7% |
| 51 | Bank of New York Mellon#51 · 1,854,622 sh | 1,854,622 | $3.9M | <0.01% | +23.0% |
| 52 | BARCLAYS PLC#52 · 1,789,808 sh | 1,789,808 | $3.7M | <0.01% | +4.6% |
| 53 | Gotham Asset Management#53 · 1,590,570 sh | 1,590,570 | $3.4M | <0.01% | +992.3% |
| 54 | LPL Financial#54 · 1,377,423 sh | 1,377,423 | $2.9M | <0.01% | -1.9% |
| 55 | Squarepoint Ops#55 · 1,376,536 sh | 1,376,536 | $2.9M | <0.01% | +813.3% |
| 56 | CenterBook Partners#56 · 1,314,526 sh | 1,314,526 | $2.8M | 0.14% | +47.5% |
| 57 | Swiss National Bank#57 · 1,160,400 sh | 1,160,400 | $2.4M | <0.01% | +4.8% |
| 58 | Man Group plc#58 · 1,142,835 sh | 1,142,835 | $2.4M | <0.01% | +165.4% |
| 59 | SG Americas Securities#59 · 864,011 sh | 864,011 | $2.4M | <0.01% | +19.5% |
| 60 | Purpose Unlimited#60 · 1,060,000 sh | 1,060,000 | $2.2M | 0.09% | +6.0% |
| 61 | Susquehanna Portfolio Strategies#61 · 1,032,986 sh | 1,032,986 | $2.2M | 0.03% | +4.2% |
| 62 | SEI INVESTMENTS#62 · 1,000,238 sh | 1,000,238 | $2.1M | <0.01% | -34.0% |
| 63 | FIRST SABREPOINT CAPITAL MANAGEMENT#63 · 1,000,000 sh | 1,000,000 | $2.1M | 0.69% | 0.0% |
| 64 | GRATIA CAPITAL#64 · 963,678 sh | 963,678 | $2.0M | 1.23% | +33.9% |
| 65 | PLUSTICK MANAGEMENT#65 · 900,000 sh | 900,000 | $1.9M | 0.71% | New |
| 66 | ALLIANCEBERNSTEIN L.P.#66 · 639,860 sh | 639,860 | $1.8M | <0.01% | +29.8% |
| 67 | HEALTHCARE OF ONTARIO PENSION PLAN FUND#67 · 808,335 sh | 808,335 | $1.7M | <0.01% | New |
| 68 | Rafferty Asset Management#68 · 785,365 sh | 785,365 | $1.7M | <0.01% | -41.7% |
| 69 | AMERIPRISE FINANCIAL#69 · 1,212,847 sh | 1,212,847 | $1.6M | <0.01% | +73.3% |
| 70 | Creative Planning#70 · 739,780 sh | 739,780 | $1.6M | <0.01% | +43.9% |
| 71 | RHUMBLINE ADVISERS#71 · 717,198 sh | 717,198 | $1.5M | <0.01% | +21.5% |
| 72 | Raiffeisen Bank International AG#72 · 700,000 sh | 700,000 | $1.5M | 0.02% | 0.0% |
| 73 | MACKENZIE FINANCIAL#73 · 675,000 sh | 675,000 | $1.4M | <0.01% | New |
| 74 | HARBOR CAPITAL ADVISORS#74 · 669,796 sh | 669,796 | $1.4M | — | +2.5% |
| 75 | IMC-Chicago#75 · 565,717 sh | 565,717 | $1.2M | <0.01% | +11.2% |
| 76 | BOOTHBAY FUND MANAGEMENT#76 · 548,200 sh | 548,200 | $1.2M | 0.02% | -27.8% |
| 77 | Banco Santander, S.A.#77 · 525,378 sh | 525,378 | $1.1M | <0.01% | +321.9% |
| 78 | PRICE T ROWE ASSOCIATES#78 · 488,839 sh | 488,839 | $1.0M | <0.01% | +41.9% |
| 79 | Moors & Cabot#79 · 458,950 sh | 458,950 | $968.4K | 0.04% | +4.6% |
| 80 | ADVENT CAPITAL MANAGEMENT#80 · 1,240,000 sh | 1,240,000 | $949.5K | 0.02% | New |
| 81 | Numerai GP#81 · 440,088 sh | 440,088 | $928.6K | 0.08% | +42.1% |
| 82 | ZAZOVE ASSOCIATES#82 · 1,230,000 sh | 1,230,000 | $902.7K | 0.07% | -81.1% |
| 83 | State of New Jersey Common Pension Fund D#83 · 403,830 sh | 403,830 | $852.1K | <0.01% | New |
| 84 | VANGUARD ASSET MANAGEMENT, Ltd#84 · 392,801 sh | 392,801 | $828.8K | <0.01% | 0.0% |
| 85 | MIRAE ASSET GLOBAL ETFS Ltd.#85 · 388,967 sh | 388,967 | $820.7K | <0.01% | +8.4% |
| 86 | CITIGROUP#86 · 388,632 sh | 388,632 | $820.0K | <0.01% | -37.7% |
| 87 | JPMORGAN CHASE#87 · 393,010 sh | 393,010 | $817.5K | 0.00% | -84.6% |
| 88 | Mariner#88 · 357,246 sh | 357,246 | $753.7K | <0.01% | +255.6% |
| 89 | Legal & General Group Plc#89 · 351,680 sh | 351,680 | $742.0K | <0.01% | +19.4% |
| 90 | MetLife Investment Management#90 · 348,509 sh | 348,509 | $735.4K | <0.01% | +46.3% |
| 91 | Verdence Capital Advisors#91 · 344,279 sh | 344,279 | $726.4K | — | -2.2% |
| 92 | Headlands Technologies#92 · 344,019 sh | 344,019 | $725.9K | 0.08% | +12.2% |
| 93 | IEQ CAPITAL#93 · 341,681 sh | 341,681 | $720.9K | <0.01% | +644.9% |
| 94 | AXQ CAPITAL#94 · 337,762 sh | 337,762 | $712.7K | 0.08% | +86.6% |
| 95 | PEAK6#95 · 335,034 sh | 335,034 | $706.9K | <0.01% | +243.1% |
| 96 | Inspire Investing#96 · 326,131 sh | 326,131 | $688.1K | — | +77.8% |
| 97 | Brevan Howard Capital Management#97 · 304,827 sh | 304,827 | $643.2K | <0.01% | +166.6% |
| 98 | MERCER GLOBAL ADVISORS#98 · 293,522 sh | 293,522 | $619.3K | <0.01% | +44.2% |
| 99 | Vanguard Global Advisers#99 · 289,665 sh | 289,665 | $611.2K | <0.01% | +25.6% |
| 100 | KLP KAPITALFORVALTNING AS#100 · 259,600 sh | 259,600 | $547.8K | <0.01% | +9.4% |
Funds that sold out of KOS in Q2 2026 (41)
Held KOS at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| Monaco Asset Management SAM4,045,884 sh | 4,045,884 | $11.2M |
| Ghisallo Capital Management3,675,000 sh | 3,675,000 | $10.2M |
| Covalis Capital LLP3,162,820 sh | 3,162,820 | $8.8M |
| HRT FINANCIAL2,719,928 sh | 2,719,928 | $7.6M |
| Walleye Capital2,314,477 sh | 2,314,477 | $6.4M |
| Nantahala Capital Management1,844,194 sh | 1,844,194 | $5.1M |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP1,729,874 sh | 1,729,874 | $4.8M |
| J. Goldman1,443,749 sh | 1,443,749 | $4.0M |
| THOMIST CAPITAL MANAGEMENT927,209 sh | 927,209 | $2.6M |
| Portolan Capital Management602,542 sh | 602,542 | $1.7M |
| Aventail Capital Group500,000 sh | 500,000 | $1.4M |
| WINTON GROUP Ltd487,200 sh | 487,200 | $1.4M |
| JUPITER ASSET MANAGEMENT LTD261,059 sh | 261,059 | $725.7K |
| Engineers Gate Manager201,333 sh | 201,333 | $559.7K |
| ADAGE CAPITAL PARTNERS GP, L.L.C.150,000 sh | 150,000 | $417.0K |
| Pale Fire Capital SE145,000 sh | 145,000 | $403.1K |
| Scientech Research138,072 sh | 138,072 | $383.8K |
| TWO SIGMA SECURITIES121,918 sh | 121,918 | $338.9K |
| STIFEL FINANCIAL115,994 sh | 115,994 | $322.5K |
| COMMONWEALTH EQUITY SERVICES54,478 sh | 54,478 | $151.4K |
| OMERS ADMINISTRATION52,800 sh | 52,800 | $146.8K |
| SUMMIT SECURITIES GROUP47,000 sh | 47,000 | $130.7K |
| SAWGRASS ASSET MANAGEMENT40,709 sh | 40,709 | $113.2K |
| Jump Financial32,773 sh | 32,773 | $91.1K |
| INSPIRION WEALTH ADVISORS27,828 sh | 27,828 | $77.4K |
| QUADRANT CAPITAL GROUP18,054 sh | 18,054 | $74.1K |
| Militia Capital Management25,000 sh | 25,000 | $69.5K |
| Y-Intercept (Hong Kong) Ltd21,649 sh | 21,649 | $60.2K |
| NOMURA ASSET MANAGEMENT LTD19,000 sh | 19,000 | $52.8K |
| Baer Investment Advisory18,994 sh | 18,994 | $52.8K |
| RMB Capital Management16,710 sh | 16,710 | $46.5K |
| Abel Hall13,095 sh | 13,095 | $36.4K |
| HighTower Advisors11,418 sh | 11,418 | $31.7K |
| Kestra Advisory Services11,000 sh | 11,000 | $30.6K |
| COLDSTREAM CAPITAL MANAGEMENT10,623 sh | 10,623 | $29.5K |
| Heritage Wealth Advisors4,995 sh | 4,995 | $13.9K |
| Advisory Services Network4,803 sh | 4,803 | $13.4K |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT2,265 sh | 2,265 | $6.3K |
| Aster Capital Management (DIFC) Ltd1,126 sh | 1,126 | $2.6K |
| Cassaday & Wealth Management112 sh | 112 | $312.00 |
| Root Financial Partners103 sh | 103 | $286.00 |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.