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Kosmos Energy
KOS

226 hedge funds and large institutions have $714M invested in Kosmos Energy in 2025 Q2 according to their latest regulatory filings, with 31 funds opening new positions, 86 increasing their positions, 70 reducing their positions, and 54 closing their positions.

New
Increased
Maintained
Reduced
Closed

23% more repeat investments, than reductions

Existing positions increased: 86 | Existing positions reduced: 70

0% more funds holding in top 10

Funds holding in top 10: 1 → 1 (0)

4% less call options, than puts

Call options by funds: $6.86M | Put options by funds: $7.16M

4.46% less ownership

Funds ownership: 91.12% → 86.66% (-4.5%)

10% less funds holding

Funds holding: 252 → 226 (-26)

28% less capital invested

Capital invested by funds: $991M → $714M (-$277M)

43% less first-time investments, than exits

New positions opened: 31 | Existing positions closed: 54

Holders
226
Holders Change
-26
Holders Change %
-10.32%
% of All Funds
2.98%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.01%
New
31
Increased
86
Reduced
70
Closed
54
Calls
$6.86M
Puts
$7.16M
Net Calls
-$294K
Net Calls Change
+$8.26M

Top Buyers

Rank Fund Capital Flow
1
BlackRock
BlackRock
New York
+$9.82M
2
Millennium Management
Millennium Management
New York
+$8.29M
3
Citadel Advisors
Citadel Advisors
Florida
+$8.05M
4
American Century Companies
American Century Companies
Missouri
+$7.56M
5
UBS Group
UBS Group
Switzerland
+$7.03M

Top Sellers

Rank Fund Capital Flow
1
William Blair Investment Management
William Blair Investment Management
Illinois
-$39.1M
2
Fidelity Investments
Fidelity Investments
Massachusetts
-$7.86M
3
Hotchkis & Wiley Capital Management
Hotchkis & Wiley Capital Management
California
-$7.82M
4
CIA
Corigliano Investment Advisers
North Carolina
-$7.05M
5
Adage Capital Partners
Adage Capital Partners
Massachusetts
-$6.14M
Name Holding Trade Value Shares
Change 		Change in
Stake
TWD
276
True Wealth Design
Ohio
– -$117 -51 Closed
GFPC
277
Global Financial Private Client
Florida
– -$84 -37 Closed
DPW
278
DiNuzzo Private Wealth
Pennsylvania
– -$14 -6 Closed
C
279
Covestor
United Kingdom
– +$47 +26 +93%
8 9 10 11
12

KOS Hedge Fund Activity: Q2 2025 in Review

226 of the 7,595 institutional investors tracked by Wall St. Rank reported a position in Kosmos Energy (KOS) for Q2 2025, worth a combined $714M — down 28% from $991M a quarter earlier.

Sellers outnumbered buyers: 54 funds closed out of KOS and 31 opened new positions — a net loss of 23 holders — while 70 trimmed existing stakes and 86 added.

The largest buyer was BlackRock, adding an estimated $9.82M. The largest seller was William Blair Investment Management, exiting entirely with an estimated $39.1M sold.

  • 226 institutional investors held Kosmos Energy (KOS) as of Q2 2025, down from 252 in Q1 2025.
  • Funds reported $714M of Kosmos Energy stock for Q2 2025, down 28% quarter-over-quarter.
  • 31 funds opened new Kosmos Energy positions in Q2 2025 and 54 closed out, a net change of -23 holders.
  • The largest Kosmos Energy buyer in Q2 2025 was BlackRock, an estimated $9.82M added.
  • The largest Kosmos Energy seller in Q2 2025 was William Blair Investment Management, an estimated $39.1M sold.

Based on aggregated 13F filings for Q2 2025.