Institutional shares held 396 Million
2.91M calls
2.82M puts
Total value of holdings $662M
$4.85M calls
$4.7M puts
Market Cap $761M
455,840,992 Shares Out.
Institutional ownership 86.91%
# of Institutions 265


Latest Institutional Activity in KOS

Top Purchases

Q2 2025
Millennium Management LLC Shares Held: 7.66M ($12.8M)
Q2 2025
Citadel Advisors LLC Shares Held: 9.45M ($15.8M)
Q2 2025
American Century Companies Inc Shares Held: 33.4M ($55.8M)
Q2 2025
Ubs Group Ag Shares Held: 8.14M ($13.6M)
Q2 2025
Squarepoint Ops LLC Shares Held: 3.22M ($5.38M)

Top Sells

Q2 2025
Hotchkis & Wiley Capital Management LLC Shares Held: 21.2M ($35.4M)
Q2 2025
Adage Capital Partners Gp, L.L.C. Shares Held: 300K ($501K)
Q2 2025
State Street Corp Shares Held: 16.2M ($27.1M)
Q2 2025
Grantham, Mayo, Van Otterloo & Co. LLC Shares Held: 36.8M ($61.5M)
Q2 2025
Dimensional Fund Advisors LP Shares Held: 10M ($16.7M)

About KOS

Kosmos Energy Ltd., a deep-water independent oil and gas exploration and production company, focuses along the Atlantic Margins. The company's primary assets include production offshore Ghana, Equatorial Guinea, and the U.S. Gulf of Mexico, as well as a gas development offshore Mauritania and Senegal. It also maintains a proven basin exploration program. The company was founded in 2003 and is headquartered in Dallas, Texas.


Insider Transactions at KOS

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
2.84M Shares
From 12 Insiders
Grant, award, or other acquisition 2.84M shares
Sell / Disposition
919K Shares
From 8 Insiders
Payment of exercise price or tax liability 574 shares
Open market or private sale 919K shares

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