Kosmos Energy
210 hedge funds and large institutions have $311M invested in Kosmos Energy in 2025 Q4 according to their latest regulatory filings, with 31 funds opening new positions, 57 increasing their positions, 89 reducing their positions, and 50 closing their positions.
92% more call options, than puts
Call options by funds: $4.05M | Put options by funds: $2.11M
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
11% less funds holding
Funds holding: 235 → 210 (-25)
11.71% less ownership
Funds ownership: 83.13% → 71.42% (-12%)
36% less repeat investments, than reductions
Existing positions increased: 57 | Existing positions reduced: 89
38% less first-time investments, than exits
New positions opened: 31 | Existing positions closed: 50
53% less capital invested
Capital invested by funds: $663M → $311M (-$352M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Jane Street
New York
|
+$9.92M |
| 2 |
Goldman Sachs
New York
|
+$5.68M |
| 3 |
D.E. Shaw & Co
New York
|
+$5.33M |
| 4 |
First Trust Advisors
Wheaton,
Illinois
|
+$3.72M |
| 5 |
Two Sigma Investments
New York
|
+$2.81M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
-$29.1M |
| 2 |
American Century Companies
Kansas City,
Missouri
|
-$25.1M |
| 3 |
Invesco
Atlanta,
Georgia
|
-$10.6M |
| 4 |
Bank of America
Charlotte,
North Carolina
|
-$9.86M |
| 5 |
BNP Paribas Asset Management
Paris,
France
|
-$8.85M |
KOS Hedge Fund Activity: Q4 2025 in Review
210 of the 8,267 institutional investors tracked by Wall St. Rank reported a position in Kosmos Energy (KOS) for Q4 2025, worth a combined $311M — down 53% from $663M a quarter earlier.
Sellers outnumbered buyers: 50 funds closed out of KOS and 31 opened new positions — a net loss of 19 holders — while 89 trimmed existing stakes and 57 added.
The largest buyer was Jane Street, adding an estimated $9.92M. The largest seller was BlackRock, cutting an estimated $29.1M.
- 210 institutional investors held Kosmos Energy (KOS) as of Q4 2025, down from 235 in Q3 2025.
- Funds reported $311M of Kosmos Energy stock for Q4 2025, down 53% quarter-over-quarter.
- 31 funds opened new Kosmos Energy positions in Q4 2025 and 50 closed out, a net change of -19 holders.
- The largest Kosmos Energy buyer in Q4 2025 was Jane Street, an estimated $9.92M added.
- The largest Kosmos Energy seller in Q4 2025 was BlackRock, an estimated $29.1M sold.
Based on aggregated 13F filings for Q4 2025.