Kosmos Energy
268 hedge funds and large institutions have $909M invested in Kosmos Energy in 2026 Q2 according to their latest regulatory filings, with 51 funds opening new positions, 118 increasing their positions, 64 reducing their positions, and 42 closing their positions.
97% more call options, than puts
Call options by funds: $19.8M | Put options by funds: $10.1M
84% more repeat investments, than reductions
Existing positions increased: 118 | Existing positions reduced: 64
21% more first-time investments, than exits
New positions opened: 51 | Existing positions closed: 42
2% more funds holding
Funds holding: 262 → 268 (+6)
0.53% less ownership
Funds ownership: 73.18% → 72.65% (-0.53%)
25% less capital invested
Capital invested by funds: $1.21B → $909M (-$299M)
67% less funds holding in top 10
Funds holding in top 10: 3 → 1 (-2)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
BlackRock
New York
|
+$23.8M |
| 2 |
American Century Companies
Kansas City,
Missouri
|
+$22.1M |
| 3 |
Two Sigma Investments
New York
|
+$18.7M |
| 4 |
BA
Bridgewater Associates
Westport,
Connecticut
|
+$13.1M |
| 5 |
Geode Capital Management
Boston,
Massachusetts
|
+$12.1M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Jane Street
New York
|
-$32.4M |
| 2 |
Grantham, Mayo, Van Otterloo & Co (GMO)
Boston,
Massachusetts
|
-$18M |
| 3 |
Millennium Management
New York
|
-$14.5M |
| 4 |
Citadel Advisors
Miami,
Florida
|
-$11.8M |
| 5 |
MAM
Monaco Asset Management
Monaco
|
-$11.2M |
KOS Hedge Fund Activity: Q2 2026 in Review
268 of the 8,349 institutional investors tracked by Wall St. Rank reported a position in Kosmos Energy (KOS) for Q2 2026, worth a combined $909M — down 25% from $1.21B a quarter earlier.
Buyers outnumbered sellers: 51 funds opened new KOS positions and 42 closed out — a net gain of 9 holders — while 118 added to existing stakes and 64 trimmed.
The largest buyer was BlackRock, adding an estimated $23.8M. The largest seller was Jane Street, cutting an estimated $32.4M.
- 268 institutional investors held Kosmos Energy (KOS) as of Q2 2026, up from 262 in Q1 2026.
- Funds reported $909M of Kosmos Energy stock for Q2 2026, down 25% quarter-over-quarter.
- 51 funds opened new Kosmos Energy positions in Q2 2026 and 42 closed out, a net change of +9 holders.
- The largest Kosmos Energy buyer in Q2 2026 was BlackRock, an estimated $23.8M added.
- The largest Kosmos Energy seller in Q2 2026 was Jane Street, an estimated $32.4M sold.
Based on aggregated 13F filings for Q2 2026.