AKTS Aktis Oncology Inc.
Aktis Oncology Inc. (AKTS) 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 |
|---|---|---|---|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC Quant | New | +95.4K | — | $3.1M | 0.0% | 60 |
| D. E. Shaw & Co., Inc. Quant | Sold Out | -17.1K | -100.0% | $549.9K | 0.0% | 58 |
| TWO SIGMA INVESTMENTS, LP Quant | New | +30.9K | — | $996.4K | 0.0% | 57 |
| Squarepoint Ops LLC Quant | New | +38.4K | — | $1.2M | 0.0% | 56 |
| Zimmer Partners Long/Short | Sold Out | -15.0K | -100.0% | $483.5K | 0.0% | 54 |
| Tudor Investment Corporation Macro | New | +21.4K | — | $689.8K | 0.0% | 53 |
| AQR Capital Management Long/Short Quant | New | +48.1K | — | $1.6M | 0.0% | 53 |
| CITADEL ADVISORS LLC Quant | Reduced | -49.5K | -66.0% | $1.6M | 0.0% | 45 |
| RA Capital Management Growth Healthcare | Reduced | -188.7K | -12.6% | $6.1M | 0.4% | 37 |
Most significant buyers
By move score, not size.
- RENAISSANCE TECHNOLOGIES LLC
- TWO SIGMA INVESTMENTS, LP
- Squarepoint Ops LLC
- Tudor Investment Corporation
- AQR Capital Management
Most significant sellers
By move score, not size.
- D. E. Shaw & Co., Inc.
- Zimmer Partners
- CITADEL ADVISORS LLC
- RA Capital Management
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| RENAISSANCE TECHNOLOGIES LLC | 1 | 95.4K | 0 | +95.4K | — | 0.0% | New | 60 |
| D. E. Shaw & Co., Inc. | 1 | 0 | 17.1K | -17.1K | -100.0% | 0.0% | Sold Out | 58 |
| TWO SIGMA INVESTMENTS, LP | 2 | 30.9K | 0 | +30.9K | — | 0.0% | New | 57 |
| Squarepoint Ops LLC | 2 | 38.4K | 0 | +38.4K | — | 0.0% | New | 56 |
| Zimmer Partners | 2 | 0 | 15.0K | -15.0K | -100.0% | 0.0% | Sold Out | 54 |
| Tudor Investment Corporation | 2 | 21.4K | 0 | +21.4K | — | 0.0% | New | 53 |
| AQR Capital Management | 3 | 48.1K | 0 | +48.1K | — | 0.0% | New | 53 |
| CITADEL ADVISORS LLC | 1 | 25.5K | 75.0K | -49.5K | -66.0% | 0.0% | Reduced | 45 |
| RA Capital Management | 1 | 1.3M | 1.5M | -188.7K | -12.6% | 0.4% | Reduced | 37 |
| EcoR1 Capital | 2 | 4.8M | 4.8M | 0 | +0.0% | 7.7% | Unchanged | 44 |
| RTW Investments | 1 | 1.6M | 1.6M | 0 | +0.0% | 0.4% | Unchanged | 27 |
| Baker Bros. Advisors | 1 | 996.4K | 996.4K | 0 | +0.0% | 0.2% | Unchanged | 26 |
| Alyeska Investment Group, L.P. | 2 | 290.0K | 290.0K | 0 | +0.0% | 0.0% | Unchanged | 20 |
| Woodline Partners LP | 2 | 100.0K | 100.0K | 0 | +0.0% | 0.0% | Unchanged | 18 |
| Readystate Asset Management | 3 | 30.0K | 30.0K | 0 | +0.0% | 0.1% | Unchanged | 14 |
| Ghisallo Capital Management | 2 | 25.0K | 25.0K | 0 | +0.0% | 0.0% | Unchanged | 19 |
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.