Kosmos Energy Ownership | Who Owns Kosmos Energy?


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Kosmos Energy Ownership Summary


Kosmos Energy is owned by 6.17% institutional investors, 2.21% insiders, and 91.62% retail investors. Blackrock is the largest institutional shareholder, holding 10.13% of KOS shares. GMO Resources Composite is the top mutual fund, with 5.17% of its assets in Kosmos Energy shares.

KOS Ownership Benchmark


TypeName% Inst% Insiders% Retail
StockKosmos Energy6.17%2.21%91.62%
SectorEnergy Stocks 147.73%15.16%-62.89%
IndustryOil & Gas Exploration & Production Stocks33.96%15.19%50.85%

Institutional Shareholders


Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Blackrock47.42M10.13%$262.71M
Blackrock funding, inc. /de46.85M9.80%$42.51M
Grantham, mayo, van otterloo34.78M7.28%$57.74B
American century companies30.38M6.35%$50.42M
Hotchkis & wiley capital management21.00M4.39%$34.85M
State street19.41M4.06%$32.21M
Equinox partners investment management17.78M3.72%$29.52M
Vanguard group14.84M3.10%$13.46M
Geode capital management11.27M2.36%$10.23M
Charles schwab investment management10.08M2.11%$16.74M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Equinox partners investment management17.78M15.93%$29.52M
Oslo asset management as2.00M12.81%$11.08M
Natixis investment managers4.01M1.06%$13.71M
Ballast asset management, lp1.82M0.78%$1.65M
Dalton investments500.00K0.34%$453.70K
Ostrum asset management4.01M0.30%$6.65M
Spx gestao de recursos ltda347.22K0.29%$1.92M
Grantham, mayo, van otterloo34.78M0.16%$57.74B
Cloverfields capital group, lp271.88K0.14%$451.32K
Hotchkis & wiley capital management21.00M0.11%$34.85M

Top Buyers

HolderShares% AssetsChange
Jane street group9.27M0.00%7.53M
Goldman sachs group6.77M0.00%4.31M
State street19.41M0.00%3.16M
Jpmorgan chase2.01M0.00%1.70M
Bank of america corp /de/5.74M0.00%1.43M

Top Sellers

HolderShares% AssetsChange
Blackrock funding, inc. /de46.85M0.00%-22.06M
William blair investment management---17.17M
Encompass capital advisors---10.45M
Natixis advisors---5.69M
Blackrock47.42M0.01%-4.62M

New Positions

HolderShares% AssetsChangeValue
Dalton investments500.00K0.34%500.00K$453.70K
Spx gestao de recursos ltda347.22K0.29%347.22K$1.92M
Inspire investing274.31K0.04%274.31K$455.35K
Raymond james & associates263.65K0.00%263.65K$1.46M
Aristides capital197.20K0.03%197.20K$178.94K

Sold Out

HolderChange
Wealthspire advisors-1.00
Federated hermes-2.00
Dinuzzo private wealth-6.00
Jfs wealth advisors-6.00
Tfo-tdc-7.00

Institutional Ownership Trends


DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Dec 31, 202551-79.35%29,509,698-92.58%60.09%19-82.57%22-71.43%
Sep 30, 202581-66.11%58,747,572-85.88%120.16%33-70.27%25-67.11%
Jun 30, 2025232-12.78%415,474,050-4.33%861.04%107-26.21%7711.59%
Mar 31, 2025263-5.40%434,150,4410.21%911.08%144-5.88%691.47%
Dec 31, 2024253-9.96%412,189,474-7.20%870.99%136-7.48%64-16.88%

Top Mutual Funds Shareholders


HolderShares% HoldingChange
GMO Resources Composite24.74M5.17%-21.79K
GMO Resources III24.74M5.17%-983.32K
Patient Opportunity C15.00M3.14%1.00M
Avantis US Small Cap Value ETF14.15M2.96%-
Cobas Selección C FI13.15M2.75%2.03M
Cobas Internacional C FI12.10M2.53%1.75M
iShares Russell 2000 ETF11.58M2.42%1.83M
SttStrtSPDRS&POil&GasExplor&ProdtnETF10.53M2.20%-
American Century U.S. Small Cap Growth8.75M1.83%-2.11M
American Century Small Cap Growth Inv8.75M1.83%-2.11M

Recent Insider Transactions


DateNameRoleActivityValue
Mar 10, 2026Ogunlesi Adebayo O.-Buy$6.00M
Mar 10, 2026STICE J MICHAEL-Buy$100.00K
Mar 10, 2026Shah Nealesh D. SVP and CFOBuy$300.00K
Mar 10, 2026INGLIS ANDREW G Chairman and CEOBuy$600.00K
Feb 03, 2026Glass Ronald W. VP & Chief Accounting OfficerSell$26.42K

Insider Transactions Trends


DateBuySell
2026 Q148
2025 Q2-1
2025 Q1-14
2024 Q3--
2024 Q2--

KOS Ownership FAQ


Who Owns Kosmos Energy?

Kosmos Energy shareholders are primarily institutional investors at 6.17%, followed by 2.21% insiders and 91.62% retail investors. The average institutional ownership in Kosmos Energy's industry, Oil & Gas Exploration & Production Stocks, is 33.96%, which Kosmos Energy falls below.

Who owns the most shares of Kosmos Energy?

Kosmos Energy’s largest shareholders are Blackrock (47.42M shares, 10.13%), Blackrock funding, inc. /de (46.85M shares, 9.80%), and Grantham, mayo, van otterloo (34.78M shares, 7.28%). Together, they hold 27.21% of Kosmos Energy’s total shares outstanding.

Does Blackrock own Kosmos Energy?

Yes, BlackRock owns 10.13% of Kosmos Energy, totaling 47.42M shares as of Jun 2024. This represents 0.01% of BlackRock's total assets, with a market value of 262.71M$. In the last quarter, BlackRock decreased its holdings by -4.616M shares, a -8.87% change.

Who is Kosmos Energy’s biggest shareholder by percentage of total assets invested?

Equinox partners investment management is Kosmos Energy’s biggest shareholder by percentage of total assets invested, with 15.93% of its assets in 17.78M Kosmos Energy shares, valued at 29.52M$.

Who is the top mutual fund holder of Kosmos Energy shares?

GMO Resources Composite is the top mutual fund holder of Kosmos Energy shares, with 5.17% of its total shares outstanding invested in 24.74M Kosmos Energy shares.

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