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KOS

Kosmos Energy Ltd.

Company with tickers: KOS

CIK
1509991
CUSIP
500688106
Shares Outstanding
593,189,274
Price History Institutional Holders Short Volume Short Interest Fails to Deliver Financials SEC Filings Earnings Calls Insider Trades Congressional Trades
Holders: 254
Total Value: $1,154,854,714
Total Shares: 415,415,417
Showing 1–100 of 264 holdings by value · page 1 of 3

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 254 13F filers · Δ vs Dec 31, 2025
Top Holder
11.4%
−2.9 pts
Top 5
32.9%
−10.4 pts
Top 10
51.3%
−10.1 pts
HHI
377
Broadly held −169

Quarterly Activity

vs Dec 31, 2025
New
78
Increased
88
Decreased
58
Sold Out
35
Unchanged
30
Holder count: +43
Institutional value: +288.7%
Shares held: +27.2%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds
Mega TWO SIGMA INVESTMENTS, LP +14,824,861 18,680,328
Mega D. E. Shaw & Co., Inc. +14,420,042 20,385,745
Mega Invesco Ltd. +9,279,333 11,150,239
Mega STATE STREET CORP +7,817,721 28,247,797
Large RENAISSANCE TECHNOLOGIES LLC +3,691,800 5,339,638

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds
Large Grantham, Mayo, Van Otterloo & Co. LLC −16,496,599 18,307,718
Mega AMERICAN CENTURY COMPANIES INC −11,202,509 98,202
Mid NORTHERN TRUST CORP −3,586,124 84,769
Mega MILLENNIUM MANAGEMENT LLC −2,195,062 12,632,904
Large M&G PLC −1,705,051 7,031,872

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD)
Mid Davidson Kempner Capital Management LP 8,419,986 $23,407,561
Large Boston Partners 4,756,571 $13,223,267
Small Monaco Asset Management SAM 4,045,884 $11,247,557
Mid Ghisallo Capital Management LLC 3,675,000 $10,216,500
Mid Covalis Capital LLP 3,162,820 $8,792,639

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD)
Large TWO SIGMA ADVISERS, LP 1,834,222 $1,669,142
Mid GROUP ONE TRADING LLC 884,523 $804,915
Small Inspire Investing, LLC 523,933 $476,779
Large Verition Fund Management LLC 503,520 $458,203
Mid Atom Investors LP 231,275 $210,460
100 of 100 shown
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Action
Mega BlackRock, Inc. $131,947,396 11.43% 47,463,094 View
Mega STATE STREET CORP $78,528,875 6.80% 28,247,797 View
Small Equinox Partners Investment Management LLC $57,484,931 4.98% 20,678,033 View
Mega D. E. Shaw & Co., Inc. $56,672,370 4.91% 20,385,745 View
Large HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC $55,743,450 4.83% 20,051,601 View
Mega TWO SIGMA INVESTMENTS, LP $51,931,311 4.50% 18,680,328 View
Large Grantham, Mayo, Van Otterloo & Co. LLC $50,895,456 4.41% 18,307,718 View
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $39,296,545 3.40% 14,135,448 View
Mega GEODE CAPITAL MANAGEMENT, LLC $35,345,072 3.06% 12,714,055 View
Mega MILLENNIUM MANAGEMENT LLC $35,119,473 3.04% 12,632,904 View
Mega JANE STREET GROUP, LLC $32,645,859 2.83% 11,743,115 View
Mega Invesco Ltd. $30,997,660 2.68% 11,150,239 View
Mega GOLDMAN SACHS GROUP INC $25,747,514 2.23% 9,261,696 View
Mid Davidson Kempner Capital Management LP $23,407,561 2.03% 8,419,986 View
Mega FIRST TRUST ADVISORS LP $21,390,009 1.85% 7,694,248 View
Mega DIMENSIONAL FUND ADVISORS LP $19,690,947 1.71% 7,083,075 View
Large M&G PLC $19,548,604 1.69% 7,031,872 View
Large Russell Investments Group, Ltd. $16,284,279 1.41% 5,857,655 View
Mega BANK OF AMERICA CORP /DE/ $15,404,034 1.33% 5,541,020 View
Large RENAISSANCE TECHNOLOGIES LLC $14,844,193 1.29% 5,339,638 View
Mega UBS Group AG $13,377,608 1.16% 4,812,090 View
Large Boston Partners $13,223,267 1.15% 4,756,571 View
Mega CITADEL ADVISORS LLC $12,371,213 1.07% 4,450,077 View
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $11,547,220 1.00% 4,153,678 View
Small Monaco Asset Management SAM $11,247,557 0.97% 4,045,884 View
Mid VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. $11,143,699 0.96% 4,008,525 View
Mid OSTRUM ASSET MANAGEMENT $11,143,699 0.96% 4,008,525 View
Mid Ghisallo Capital Management LLC $10,216,500 0.88% 3,675,000 View
Mega Nuveen, LLC $9,214,709 0.80% 3,314,644 View
Mid Covalis Capital LLP $8,792,639 0.76% 3,162,820 View
Mega MORGAN STANLEY $8,448,365 0.73% 3,038,981 View
Large HRT FINANCIAL LP $7,561,399 0.65% 2,719,928 View
Mega JPMORGAN CHASE & CO $7,094,272 0.61% 2,551,897 View
Large NOMURA HOLDINGS INC $6,544,495 0.57% 2,354,135 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $6,526,436 0.57% 2,347,639 View
Large Walleye Capital LLC $6,434,246 0.56% 2,314,477 View
Small GeoSphere Capital Management, LLC $5,667,830 0.49% 2,038,788 View
Small Ballast Asset Management, LP $5,638,004 0.49% 2,028,059 View
Large Point72 Asset Management, L.P. $5,461,582 0.47% 1,964,598 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $5,456,584 0.47% 1,962,800 View
Mid Nantahala Capital Management, LLC $5,126,859 0.44% 1,844,194 View
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $4,809,049 0.42% 1,729,874 View
Mega BARCLAYS PLC $4,600,092 0.40% 1,654,710 View
Mega WELLS FARGO & COMPANY/MN $4,336,220 0.38% 1,559,792 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $4,246,172 0.37% 1,527,400 View
Large SEI INVESTMENTS CO $4,214,457 0.36% 1,515,992 View
Mega Bank of New York Mellon Corp $4,190,534 0.36% 1,507,387 View
Small GRATIA CAPITAL, LLC $4,170,000 0.36% 1,500,000 View
Mid Quadrature Capital Ltd $4,098,089 0.35% 1,474,133 View
Mid J. Goldman & Co LP $4,013,622 0.35% 1,443,749 View
Mega LPL Financial LLC $3,904,118 0.34% 1,404,359 View
Large Rafferty Asset Management, LLC $3,746,689 0.32% 1,347,730 View
Mega AQR CAPITAL MANAGEMENT LLC $3,592,425 0.31% 1,292,241 View
Mid ALGERT GLOBAL LLC $3,494,090 0.30% 1,256,867 View
Mid Quantbot Technologies LP $3,424,715 0.30% 1,231,912 View
Mega CITADEL ADVISORS LLC $3,309,034 0.29% 1,190,300 View
Mega CITADEL ADVISORS LLC $3,201,170 0.28% 1,151,500 View
Mega Swiss National Bank $3,076,904 0.27% 1,106,800 View
Large LMR Partners LLP $2,882,701 0.25% 1,036,943 View
Small FIRST SABREPOINT CAPITAL MANAGEMENT LP $2,780,000 0.24% 1,000,000 View
Mid Purpose Unlimited Inc. $2,780,000 0.24% 1,000,000 View
Mid Susquehanna Portfolio Strategies, LLC $2,754,668 0.24% 990,888 View
Small Thomist Capital Management, LP $2,577,641 0.22% 927,209 View
Mid Aquatic Capital Management LLC $2,567,099 0.22% 923,417 View
Mid CenterBook Partners LP $2,478,297 0.21% 891,474 View
Mid CAXTON ASSOCIATES LLP $2,304,172 0.20% 828,839 View
Mid BOOTHBAY FUND MANAGEMENT, LLC $2,111,966 0.18% 759,700 View
Mid XTX Topco Ltd $2,021,652 0.18% 727,213 View
Large SG Americas Securities, LLC $2,009,636 0.17% 722,891 View
Small GRATIA CAPITAL, LLC $2,001,043 0.17% 719,800 View
Mega AMERIPRISE FINANCIAL INC $1,946,072 0.17% 700,026 View
Small Lombard Odier Asset Management (USA) Corp $1,946,000 0.17% 700,000 View
Mid Raiffeisen Bank International AG $1,946,000 0.17% 700,000 View
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM $1,845,689 0.16% 663,917 View
Mid HARBOR CAPITAL ADVISORS, INC. $1,816,507 0.16% 653,420 View
Mega CITIGROUP INC $1,733,820 0.15% 623,677 View
Mid Portolan Capital Management, LLC $1,675,066 0.15% 602,542 View
Mega RHUMBLINE ADVISERS $1,640,478 0.14% 590,100 View
Large Creative Planning $1,429,350 0.12% 514,155 View
Mid IMC-Chicago, LLC $1,414,666 0.12% 508,873 View
Mid Aventail Capital Group, LP $1,390,000 0.12% 500,000 View
Large Centiva Capital, LP $1,376,947 0.12% 495,305 View
Mega ALLIANCEBERNSTEIN L.P. $1,370,150 0.12% 492,860 View
Mid WINTON GROUP Ltd $1,354,416 0.12% 487,200 View
Mid Moors & Cabot, Inc. $1,220,281 0.11% 438,950 View
Mega DEUTSCHE BANK AG\ $1,201,340 0.10% 432,137 View
Large Man Group plc $1,197,104 0.10% 430,613 View
Mega JANE STREET GROUP, LLC $1,064,462 0.09% 382,900 View
Large Schonfeld Strategic Advisors LLC $1,022,297 0.09% 367,733 View
Large MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. $997,163 0.09% 358,692 View
Mid Verdence Capital Advisors LLC $978,926 0.08% 352,132 View
Mega PRICE T ROWE ASSOCIATES INC /MD/ $957,604 0.08% 344,462 View
Small Numerai GP LLC $861,152 0.07% 309,767 View
Small Headlands Technologies LLC $852,275 0.07% 306,574 View
Mid SBI Securities Co., Ltd. $834,753 0.07% 300,271 View
Mega Legal & General Group Plc $818,934 0.07% 294,581 View
Mid RWC Asset Management LLP $813,186 0.07% 292,513 View
Small Caitong International Asset Management Co., Ltd $756,916 0.07% 272,272 View
Small CLOVERFIELDS CAPITAL GROUP, LP $755,820 0.07% 271,878 View
Large JUPITER ASSET MANAGEMENT LTD $725,744 0.06% 261,059 View
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