Oklo
OKLO
678 hedge funds and large institutions have $4.43B invested in Oklo in 2026 Q1 according to their latest regulatory filings, with 134 funds opening new positions, 287 increasing their positions, 161 reducing their positions, and 124 closing their positions.
78% more repeat investments, than reductions
Existing positions increased: 287 | Existing positions reduced: 161
41% more call options, than puts
Call options by funds: $996M | Put options by funds: $704M
33% more funds holding in top 10
Funds holding in top 10: 3 → 4 (+1)
3.4% more ownership
Funds ownership: 48.04% → 51.44% (+3.4%)
8% more first-time investments, than exits
New positions opened: 134 | Existing positions closed: 124
1% less funds holding
Funds holding: 683 → 678 (-5)
18% less capital invested
Capital invested by funds: $5.38B → $4.43B (-$952M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
DE
Defiance ETFs
New York
|
+$262M |
| 2 |
VanEck Associates
New York
|
+$153M |
| 3 |
Alyeska Investment Group
Chicago,
Illinois
|
+$123M |
| 4 |
BlackRock
New York
|
+$78.2M |
| 5 |
Mirae Asset Global ETFs Holdings
Causeway Bay,
Hong Kong
|
+$74.3M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
CS
Clear Street
New York
|
-$24.6M |
| 2 |
CF
Cantor Fitzgerald
New York
|
-$22M |
| 3 |
Corient Private Wealth
Miami,
Florida
|
-$17.5M |
| 4 |
SC
Sculptor Capital
New York
|
-$14.9M |
| 5 |
MG
Marex Group
London,
|
-$14.2M |
OKLO Hedge Fund Activity: Q1 2026 in Review
678 institutional investors reported a position in Oklo (OKLO) for Q1 2026, worth a combined $4.43B — down 18% from $5.38B a quarter earlier.
Buyers outnumbered sellers: 134 funds opened new OKLO positions and 124 closed out — a net gain of 10 holders — while 287 added to existing stakes and 161 trimmed.
The largest buyer was Defiance ETFs, opening a new position worth an estimated $262M. The largest seller was Clear Street, cutting an estimated $24.6M.
- 678 institutional investors held Oklo (OKLO) as of Q1 2026, down from 683 in Q4 2025.
- Funds reported $4.43B of Oklo stock for Q1 2026, down 18% quarter-over-quarter.
- 134 funds opened new Oklo positions in Q1 2026 and 124 closed out, a net change of +10 holders.
- The largest Oklo buyer in Q1 2026 was Defiance ETFs, an estimated $262M added.
- The largest Oklo seller in Q1 2026 was Clear Street, an estimated $24.6M sold.
Based on aggregated 13F filings for Q1 2026.