Kosmos Energy
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, 87 increasing their positions, 69 reducing their positions, and 54 closing their positions.
26% more repeat investments, than reductions
Existing positions increased: 87 | Existing positions reduced: 69
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
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
+$9.82M |
| 2 |
Millennium Management
New York
|
+$8.29M |
| 3 |
Citadel Advisors
Miami,
Florida
|
+$8.05M |
| 4 |
American Century Companies
Kansas City,
Missouri
|
+$7.56M |
| 5 |
UBS Group
Zurich,
Switzerland
|
+$7.03M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
William Blair Investment Management
Chicago,
Illinois
|
-$39.1M |
| 2 |
Fidelity Investments
Boston,
Massachusetts
|
-$7.86M |
| 3 |
Hotchkis & Wiley Capital Management
Los Angeles,
California
|
-$7.82M |
| 4 |
CIA
Corigliano Investment Advisers
Raleigh,
North Carolina
|
-$7.05M |
| 5 |
Adage Capital Partners
Boston,
Massachusetts
|
-$6.14M |
KOS Hedge Fund Activity: Q2 2025 in Review
226 of the 7,612 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 69 trimmed existing stakes and 87 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.