GRAL GRAIL, Inc.
GRAIL, Inc. (GRAL) 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 |
|---|---|---|---|---|---|---|
| RA Capital Management Growth Healthcare | Sold Out | -428.3K | -100.0% | $29.2M | 0.0% | 66 |
| Braidwell Growth Healthcare | Sold Out | -142.8K | -100.0% | $9.7M | 0.0% | 60 |
| CITADEL ADVISORS LLC Quant | Sold Out | -33.9K | -100.0% | $2.3M | 0.0% | 60 |
| MILLENNIUM MANAGEMENT LLC | Sold Out | -24.8K | -100.0% | $1.7M | 0.0% | 59 |
| Verition Fund Management Event Long/Short | New | +48.8K | — | $3.3M | 0.0% | 56 |
| Tudor Investment Corporation Macro | Sold Out | -31.5K | -100.0% | $2.1M | 0.0% | 56 |
| Capital Fund Management Quant Macro | Sold Out | -132.9K | -100.0% | $9.1M | 0.0% | 55 |
| Aquatic Capital Management Quant | Sold Out | -50.4K | -100.0% | $3.4M | 0.0% | 50 |
| Alyeska Investment Group, L.P. | Reduced | -540.5K | -83.7% | $36.9M | 0.0% | 50 |
| Farallon Capital Management Event Value | Increased | +907.9K | +27.9% | $62.0M | 1.7% | 50 |
Most significant buyers
By move score, not size.
- Verition Fund Management
- Farallon Capital Management
- Brevan Howard Capital Management
- Sessa Capital
- Walleye Capital
Most significant sellers
By move score, not size.
- RA Capital Management
- Braidwell
- CITADEL ADVISORS LLC
- MILLENNIUM MANAGEMENT LLC
- Tudor Investment Corporation
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| RA Capital Management | 1 | 0 | 428.3K | -428.3K | -100.0% | 0.0% | Sold Out | 66 |
| Braidwell | 2 | 0 | 142.8K | -142.8K | -100.0% | 0.0% | Sold Out | 60 |
| CITADEL ADVISORS LLC | 1 | 0 | 33.9K | -33.9K | -100.0% | 0.0% | Sold Out | 60 |
| MILLENNIUM MANAGEMENT LLC | 2 | 0 | 24.8K | -24.8K | -100.0% | 0.0% | Sold Out | 59 |
| Verition Fund Management | 2 | 48.8K | 0 | +48.8K | — | 0.0% | New | 56 |
| Tudor Investment Corporation | 2 | 0 | 31.5K | -31.5K | -100.0% | 0.0% | Sold Out | 56 |
| Capital Fund Management | 3 | 0 | 132.9K | -132.9K | -100.0% | 0.0% | Sold Out | 55 |
| Aquatic Capital Management | 4 | 0 | 50.4K | -50.4K | -100.0% | 0.0% | Sold Out | 50 |
| Alyeska Investment Group, L.P. | 2 | 105.0K | 645.5K | -540.5K | -83.7% | 0.0% | Reduced | 50 |
| Farallon Capital Management | 1 | 4.2M | 3.3M | +907.9K | +27.9% | 1.7% | Increased | 50 |
| RENAISSANCE TECHNOLOGIES LLC | 1 | 9.2K | 55.2K | -46.0K | -83.3% | 0.0% | Reduced | 50 |
| MARSHALL WACE, LLP | 2 | 6.2K | 59.9K | -53.7K | -89.6% | 0.0% | Reduced | 50 |
| Brevan Howard Capital Management | 3 | 5.4K | 0 | +5.4K | — | 0.0% | New | 49 |
| Graham Capital Management | 3 | 0 | 4.3K | -4.3K | -100.0% | 0.0% | Sold Out | 49 |
| Sessa Capital | 2 | 2.0M | 1.7M | +318.2K | +18.5% | 2.5% | Increased | 48 |
| Quantbot Technologies | 4 | 0 | 496 | -496 | -100.0% | 0.0% | Sold Out | 45 |
| Walleye Capital | 3 | 1.3K | 240 | +1.1K | +449.6% | 0.0% | Increased | 45 |
| Man Group | 3 | 7.7K | 51.1K | -43.4K | -85.0% | 0.0% | Reduced | 44 |
| TWO SIGMA INVESTMENTS, LP | 2 | 27.4K | 64.7K | -37.3K | -57.6% | 0.0% | Reduced | 42 |
| Deep Track Capital | 1 | 1.8M | 1.7M | +112.1K | +6.5% | 1.8% | Increased | 42 |
| D. E. Shaw & Co., Inc. | 1 | 116.1K | 81.6K | +34.5K | +42.3% | 0.0% | Increased | 39 |
| AQR Capital Management | 3 | 211.3K | 292.0K | -80.7K | -27.6% | 0.0% | Reduced | 29 |
| Gotham Asset Management, LLC | 2 | 23.9K | 20.0K | +4.0K | +19.8% | 0.0% | Increased | 28 |
| Voleon Capital Management | 3 | 121.1K | 145.0K | -23.9K | -16.5% | 0.2% | Reduced | 27 |
| Centiva Capital | 4 | 825 | 994 | -169 | -17.0% | 0.0% | Reduced | 21 |
| Baker Bros. Advisors | 1 | 4.0M | 4.0M | 0 | +0.0% | 1.4% | Unchanged | 32 |
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.