Kosmos Energy Ltd (KOS) Ownership

1.69 ↑0.00 (0.00%)
As of December 31, 1969, 7:00pm EST.

Institutional Ownership

BlackRock Inc is the biggest individual institutional holder of Kosmos Energy Ltd (KOS), owning a total of 62.8 million shares. Combined, the top 41 institutional holders of KOS own 104.64% of the company with a total of 497.2 million shares.

In the latest ownership report on March 31st 2025, the top 41 institutional holders increased their combined ownership of KOS by 21.8 million shares. 9 institutions bought 22,957,745 total additional shares and increased their ownership by an average of 19.17%. However 2 institutions sold 1,120,104 total shares and decreased their ownership by an average of 3.22%.

Overall this is a positive sign as the number of shares owned by the top 20 institutional holders of Kosmos Energy Ltd increased by a net total of 21,837,641 in the latest quarter.

Institution Ownership Chart

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Latest Institutional Ownership Changes

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
BlackRock Inc13.138%10.840%62,802,4126,141,8782025-03-31
Grantham, Mayo, Van Otterloo & Co., LLC8.345%22.252%39,887,8287,260,2612025-03-31
American Century Companies Inc6.116%-1.086%29,235,509-320,8732025-03-31
Hotchkis & Wiley Capital Management LLC5.340%9.012%25,527,1012,110,3062025-03-31
State Street Corp4.098%2.747%19,590,212523,7202025-03-31
Patients Capital Management LLC3.767%4.998%18,004,787857,0582025-03-31
Vanguard Group Inc2.950%-5.364%14,099,989-799,2312025-03-31
Dimensional Fund Advisors, Inc.2.592%6.194%12,390,182722,7042025-03-31
Charles Schwab Investment Management Inc1.629%11.702%7,784,911815,5822025-03-31
FMR Inc1.624%77.958%7,762,5103,400,5122025-03-31
Acadian Asset Management LLC1.113%26.843%5,319,5201,125,7242025-03-31

Top Institutions

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
BlackRock Inc13.138%10.840%62,802,4126,141,8782025-03-31
Grantham, Mayo, Van Otterloo & Co., LLC8.345%22.252%39,887,8287,260,2612025-03-31
American Century Companies Inc6.116%-1.086%29,235,509-320,8732025-03-31
Hotchkis & Wiley Capital Management LLC5.340%9.012%25,527,1012,110,3062025-03-31
State Street Corporation4.354%14.079%20,544,9902,535,5502024-03-31
Vaughan Nelson Scarbrgh & Mccullough LP4.268%-27.793%20,395,199-7,850,2162024-12-31
State Street Corp4.098%2.747%19,590,212523,7202025-03-31
William Blair Investment Management, LLC3.921%28.125%18,743,7344,114,4992024-12-31
Patients Capital Management LLC3.767%4.998%18,004,787857,0582025-03-31
Vanguard Group Inc2.950%-5.364%14,099,989-799,2312025-03-31
Dimensional Fund Advisors, Inc.2.592%6.194%12,390,182722,7042025-03-31
Mason Hill Asset Management Incet AL2.390%39.232%11,421,8953,218,3942024-12-31
Geode Capital Management, LLC2.202%-0.517%10,526,253-54,7262024-12-31
Encompass Capital Advisors LLC2.185%0.000%10,445,20810,445,2082024-12-31
Patient Capital Management, LLC1.926%13.008%9,084,8791,045,7352024-06-30
Maple Rock Capital Partners, Inc.1.902%0.000%8,970,51902023-12-31
D. E. Shaw & Co LP1.918%1.427%8,822,845124,1182022-12-31
First Trust Advisors L.P.1.869%17.812%8,588,5471,298,4892022-09-30
Charles Schwab Investment Management Inc1.629%11.702%7,784,911815,5822025-03-31
Amvescap Plc.1.626%1.163%7,771,59789,3562024-12-31
FMR Inc1.624%77.958%7,762,5103,400,5122025-03-31
Balyasny Asset Management LLC1.586%64.197%7,482,1712,925,3312024-03-31
RWC Asset Advisors (US) LLC1.584%-14.267%7,474,571-1,243,8842024-06-30
Boston Partners Global Investors, Inc1.482%20.343%6,993,1411,182,1232024-06-30
KEY GROUP HOLDINGS (CAYMAN), LTD.1.518%0.000%6,984,66102023-09-30
Jennison Associates LLC1.456%2.989%6,868,689199,3172024-09-30
Two Sigma Investments LLC1.470%-24.376%6,700,149-2,159,7092022-06-30
Morgan Stanley - Brokerage Accounts1.384%15.286%6,613,945876,9642024-12-31
T. Rowe Price Associates, Inc.1.370%-67.348%6,548,777-13,507,5692024-12-31
Bank of America Corp1.359%11.803%6,414,393677,1482024-09-30
Goldman Sachs Group Inc1.358%163.243%6,402,0723,970,0732023-12-31
M&G PLC1.303%5.324%6,226,597314,7532024-12-31
JPMorgan Chase & Co1.278%-9.581%6,025,841-638,5012023-12-31
Capital Research & Mgmt Co - Division 31.267%0.000%5,976,59702024-09-30
Adage Capital Partners Gp LLC1.254%28.579%5,914,6091,314,6092024-03-31
Two Sigma Advisers, LLC1.239%-15.314%5,699,922-1,030,7002023-03-31
Natixis Advisors, LLC.1.190%-15.219%5,689,552-1,021,3042024-12-31
Barclays PLC1.174%85.019%5,611,2132,578,4312024-12-31
BNP Paribas Investment Partners SA1.143%52.359%5,463,2831,877,4962024-12-31
Acadian Asset Management LLC1.113%26.843%5,319,5201,125,7242025-03-31
Northern Trust Corp0.953%1.409%4,383,54760,8892023-03-31

Mutual Fund Ownership

GMO Resources Composite is the biggest individual fund holder of Kosmos Energy Ltd (KOS), owning a total of 31.3 million shares. Combined, the top 47 mutual fund holders of KOS own 73.12% of the company with a total of 345.1 million shares.

In the latest ownership report on April 30th 2025, the top 47 fund holders increased their combined ownership of KOS by 1.4 million shares. 1 funds bought 1,978 total additional shares and increased their ownership by an average of 0.02%. However 1 funds sold 1,358,750 total shares and decreased their ownership by an average of 14.4%.

Overall this is a negative sign as the number of shares owned by the top 20 mutual funds holding Kosmos Energy Ltd decreased by a net total of -1,356,772 in the latest report.

Mutual Funds Chart

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Latest Mutual Fund Ownership Changes

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
Avantis US Small Cap Value ETF2.755%0.000%13,169,98702025-04-30
iShares Russell 2000 ETF2.451%0.017%11,713,9441,9782025-04-30
SPDR® S&P Oil & Gas Explor & Prodtn ETF1.690%-14.396%8,079,841-1,358,7502025-04-30
iShares Russell 2000 Growth ETF0.874%0.000%4,179,15502025-04-30

Top Mutual Funds

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
GMO Resources Composite6.551%23.143%31,312,1095,884,5702025-03-31
GMO Resources III6.551%15.250%31,312,1094,143,2702025-03-31
GMO Resources Strategy3.821%12.962%17,575,6012,016,8002022-12-31
Patient Opportunity C2.929%3.704%14,000,000500,0002025-03-31
Avantis US Small Cap Value ETF2.755%0.000%13,169,98702025-04-30
Strategic Advisers® Fidelity US TtlStk2.807%3.765%12,915,641468,5722023-11-30
iShares Russell 2000 ETF2.451%0.017%11,713,9441,9782025-04-30
Fidelity® Series Large Cap Stock2.527%0.000%11,626,45502023-11-30
American Century Small Cap Growth Inv2.267%0.000%10,837,66702025-03-31
American Century U.S. Small Cap Growth2.267%0.000%10,837,66702025-03-31
Invesco Small Cap Value A1.871%3.745%8,945,458322,9242025-03-31
SPDR® S&P Oil & Gas Explor & Prodtn ETF1.690%-14.396%8,079,841-1,358,7502025-04-30
Vanguard Institutional Extnd Mkt Idx Tr1.539%2.588%7,354,453185,5202025-03-31
First Trust Nasdaq Oil & Gas ETF1.478%0.232%6,738,44715,5802022-11-30
Bridge Builder Small/Mid Cap Value1.381%3.257%6,516,630205,5402024-11-30
Vanguard Extended Market Index Investor1.366%-0.018%6,285,433-1,1212023-08-31
American Funds SMALLCAP World A1.267%0.000%5,976,59702024-09-30
American Century U.S. Small Cap Gr SMA1.224%1.521%5,630,42784,3582023-03-31
T. Rowe Price International Small-Cap Eq1.077%-1.635%5,147,628-85,5472024-12-31
T. Rowe Price International Discovery1.077%0.000%5,147,62802025-02-28
BNP Paribas US Small Cap Classic R1.065%0.826%5,091,24041,6902025-03-31
Cobas Selección C FI1.052%113.777%5,027,2282,675,6062024-12-31
Avantis® U.S. Small Cap Value ETF1.050%0.000%4,832,16402023-07-29
T. Rowe Price Real Assets Tr I-Z1.022%10.551%4,824,139460,4282024-09-30
Hotchkis & Wiley Mid-Cap Value I1.003%0.000%4,795,12002025-03-31
Cobas Internacional C FI0.998%118.703%4,770,6752,589,3252024-12-31
BGF World Energy A20.995%-0.008%4,755,843-3852025-01-31
Fidelity Small Cap Index0.972%0.831%4,647,51738,2972025-02-28
BlackRock High Equity Income Instl0.953%15.829%4,554,206622,3852025-02-28
Fidelity® Small Cap Index0.955%2.802%4,395,913119,8202023-10-31
Hotchkis & Wiley Small Cap Value I0.915%0.000%4,371,20002025-03-31
American Beacon Small Cp Val R50.900%-1.774%4,302,807-77,7002025-03-31
William Blair SMID Growth CIT 10.898%-1.792%4,294,501-78,3402025-03-31
William Blair Small-Mid Cap Growth CIT0.907%30.030%4,280,783988,6292024-12-31
iShares Russell 2000 Growth ETF0.874%0.000%4,179,15502025-04-30
Fidelity Series Large Cap Stock0.869%-14.058%4,100,355-670,7002024-08-31
Fidelity® Value0.879%1.957%4,042,65877,6002023-11-30
T. Rowe Price New Era0.845%3.100%3,888,141116,9002023-09-30
Fidelity® Balanced0.835%0.723%3,840,51827,5482023-10-31
Fidelity® Growth & Income0.833%-4.951%3,830,055-199,5002023-05-31
JPM Global Natural Resources A (acc) EUR0.811%-5.241%3,731,784-206,3882023-08-31
Fidelity Balanced0.784%0.000%3,696,71802024-01-31
Strategic Advisers Fidelity US TtlStk0.781%-41.599%3,684,200-2,624,2412024-11-30
Fidelity Value0.771%0.000%3,636,35802024-11-30
JPM Natural Resources C Net Acc0.788%-1.200%3,627,207-44,0452023-07-31
Fidelity Advisor® Capital Development O0.767%0.353%3,495,80112,3112022-10-31
T. Rowe Price Real Assets0.700%-11.921%3,301,111-446,8002023-12-31

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