OKLO Oklo Inc.
Oklo Inc. (OKLO) Hedge Fund Activity
This view isolates hedge funds from the broader institutional ownership shown on the Institutional tab. A pension fund tracking an index may have no view on a stock; when a hedge fund builds or exits a position, that decision can carry information. This page measures those changes. Positions as of June 30, 2026.
Based on quarterly 13F long-equity filings. Changes compare reported quarter-end positions; filings can be reported up to 45 days later and do not represent a fund's complete exposure.
Most significant moves
Ranked by conviction, not size — how much of the fund's own book the position represents, how far it moved, and what kind of fund made it.
| Fund | Action | Shares changed | Change | Est. value | Portfolio wt. | Score |
|---|---|---|---|---|---|---|
| Alyeska Investment Group, L.P. | Sold Out | -1.71M | -100.0% | $89.5M | 0.0% | 63 |
| MARSHALL WACE, LLP Long/Short | New | +1.07M | — | $55.8M | 0.1% | 62 |
| Ghisallo Capital Management Long/Short | Sold Out | -100.0K | -100.0% | $5.2M | 0.0% | 58 |
| Weiss Asset Management Event Quant | New | +86.3K | — | $4.5M | 0.1% | 56 |
| Scopus Asset Management Long/Short | Sold Out | -30.0K | -100.0% | $1.6M | 0.0% | 56 |
| Tudor Investment Corporation Macro | Sold Out | -181.9K | -100.0% | $9.5M | 0.0% | 56 |
| Hudson Bay Capital Management Event | New | +19.8K | — | $1.0M | 0.0% | 55 |
| MILLENNIUM MANAGEMENT LLC | Increased | +222.1K | +390.5% | $11.6M | 0.0% | 55 |
| Quadrature Capital Quant | Sold Out | -177.7K | -100.0% | $9.3M | 0.0% | 55 |
| Jain Global Long/Short Quant | New | +76.6K | — | $4.0M | 0.1% | 54 |
Most significant buyers
By move score, not size.
- MARSHALL WACE, LLP
- Weiss Asset Management
- Hudson Bay Capital Management
- MILLENNIUM MANAGEMENT LLC
- Jain Global
Most significant sellers
By move score, not size.
- Alyeska Investment Group, L.P.
- Ghisallo Capital Management
- Scopus Asset Management
- Tudor Investment Corporation
- Quadrature Capital
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| Alyeska Investment Group, L.P. | 2 | 0 | 1.7M | -1.71M | -100.0% | 0.0% | Sold Out | 63 |
| MARSHALL WACE, LLP | 2 | 1.1M | 0 | +1.07M | — | 0.1% | New | 62 |
| Ghisallo Capital Management | 2 | 0 | 100.0K | -100.0K | -100.0% | 0.0% | Sold Out | 58 |
| Weiss Asset Management | 2 | 86.3K | 0 | +86.3K | — | 0.1% | New | 56 |
| Scopus Asset Management | 2 | 0 | 30.0K | -30.0K | -100.0% | 0.0% | Sold Out | 56 |
| Tudor Investment Corporation | 2 | 0 | 181.9K | -181.9K | -100.0% | 0.0% | Sold Out | 56 |
| Hudson Bay Capital Management | 3 | 19.8K | 0 | +19.8K | — | 0.0% | New | 55 |
| MILLENNIUM MANAGEMENT LLC | 2 | 279.0K | 56.9K | +222.1K | +390.5% | 0.0% | Increased | 55 |
| Quadrature Capital | 3 | 0 | 177.7K | -177.7K | -100.0% | 0.0% | Sold Out | 55 |
| Jain Global | 3 | 76.6K | 0 | +76.6K | — | 0.1% | New | 54 |
| Woodline Partners LP | 2 | 0 | 4.3K | -4.3K | -100.0% | 0.0% | Sold Out | 54 |
| Balyasny Asset Management L.P. | 2 | 85.0K | 32.8K | +52.2K | +159.4% | 0.0% | Increased | 53 |
| CITADEL ADVISORS LLC | 1 | 28.3K | 249.7K | -221.4K | -88.7% | 0.0% | Reduced | 53 |
| Schonfeld Strategic Advisors | 3 | 25.7K | 0 | +25.7K | — | 0.0% | New | 53 |
| Parallax Volatility Advisers | 3 | 0 | 41.9K | -41.9K | -100.0% | 0.0% | Sold Out | 53 |
| ExodusPoint Capital Management | 3 | 13.1K | 0 | +13.1K | — | 0.0% | New | 52 |
| Boothbay Fund Management | 4 | 0 | 20.5K | -20.5K | -100.0% | 0.0% | Sold Out | 51 |
| Squarepoint Ops LLC | 2 | 73.8K | 28.2K | +45.6K | +161.8% | 0.0% | Increased | 51 |
| Y-Intercept | 4 | 33.4K | 0 | +33.4K | — | 0.0% | New | 50 |
| Graham Capital Management | 3 | 7.9K | 0 | +7.9K | — | 0.0% | New | 49 |
| Centiva Capital | 4 | 462 | 0 | +462 | — | 0.0% | New | 48 |
| Caption Management | 3 | 150.5K | 900 | +149.6K | +16626.7% | 0.3% | Increased | 48 |
| Brevan Howard Capital Management | 3 | 81.6K | 8.3K | +73.3K | +877.8% | 0.1% | Increased | 46 |
| Man Group | 3 | 22.6K | 209.8K | -187.2K | -89.2% | 0.0% | Reduced | 45 |
| CastleKnight Management | 3 | 29.9K | 13.6K | +16.3K | +119.9% | 0.1% | Increased | 44 |
| TWO SIGMA INVESTMENTS, LP | 2 | 72.5K | 160.3K | -87.8K | -54.8% | 0.0% | Reduced | 41 |
| Walleye Capital | 3 | 3.6K | 22.3K | -18.7K | -84.0% | 0.0% | Reduced | 41 |
| Holocene Advisors, LP | 2 | 66.9K | 45.4K | +21.4K | +47.2% | 0.0% | Increased | 38 |
| Quantbot Technologies | 4 | 21.7K | 129.1K | -107.4K | -83.2% | 0.0% | Reduced | 38 |
| LMR Partners | 3 | 15.1K | 26.4K | -11.2K | -42.6% | 0.0% | Reduced | 32 |
| Bridgewater Associates | 1 | 56.2K | 55.0K | +1.2K | +2.3% | 0.0% | Increased | 31 |
| Winton Group | 4 | 97.3K | 134.4K | -37.1K | -27.6% | 0.2% | Reduced | 27 |
| AQR Capital Management | 3 | 31.6K | 24.7K | +6.8K | +27.5% | 0.0% | Increased | 27 |
| Capstone Investment Advisors | 3 | 9.3K | 8.1K | +1.3K | +15.5% | 0.0% | Increased | 26 |
| Trexquant Investment | 3 | 208.7K | 203.1K | +5.7K | +2.8% | 0.1% | Increased | 21 |
| Sona Asset Management | 3 | 4.6K | 4.6K | 0 | +0.0% | 0.0% | Unchanged | 16 |
Every fund above opens. Subscribers can see any manager's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeHedge funds are identified from their 13F filings, which are due 45 days after quarter end and cover long U.S.-listed equity positions only. A fund's short book never appears, so a reduced position can mean a changed view or a changed hedge — the filing doesn't say which.