ABVX ABIVAX Société Anonyme
ABIVAX Société Anonyme (ABVX) 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 |
|---|---|---|---|---|---|---|
| Helikon Investments Long/Short | Increased | +1.77M | +175.0% | $236.4M | 11.1% | 84 |
| Paradigm BioCapital Advisors Growth Healthcare | Sold Out | -772.5K | -100.0% | $102.9M | 0.0% | 76 |
| RA Capital Management Growth Healthcare | New | +1.13M | — | $150.9M | 1.3% | 76 |
| Vestal Point Capital Growth Healthcare | Increased | +849.4K | +56.6% | $113.2M | 7.3% | 75 |
| Baker Bros. Advisors Growth Healthcare | Sold Out | -875.8K | -100.0% | $116.7M | 0.0% | 72 |
| Logos Global Management Growth Healthcare | Increased | +349.0K | +51.7% | $46.5M | 5.9% | 66 |
| Two Seas Capital Event | New | +244.6K | — | $32.6M | 1.2% | 64 |
| RTW Investments Growth Healthcare | New | +26.4K | — | $3.5M | 0.0% | 63 |
| Caligan Partners Activist Event | Increased | +96.0K | +6.6% | $12.8M | 10.0% | 62 |
| ADAR1 Capital Management Long/Short Growth | Increased | +410.7K | +29.5% | $54.7M | 12.0% | 60 |
Most significant buyers
By move score, not size.
- Helikon Investments
- RA Capital Management
- Vestal Point Capital
- Logos Global Management
- Two Seas Capital
Most significant sellers
By move score, not size.
- Paradigm BioCapital Advisors
- Baker Bros. Advisors
- Point72 Asset Management, L.P.
- Hudson Bay Capital Management
- Perceptive Advisors
Hedge fund positions
| Fund | Tier | Shares | Previous | Change | Change % | Portfolio wt. | Action | Score |
|---|---|---|---|---|---|---|---|---|
| Helikon Investments | 2 | 2.8M | 1.0M | +1.77M | +175.0% | 11.1% | Increased | 84 |
| Paradigm BioCapital Advisors | 1 | 0 | 772.5K | -772.5K | -100.0% | 0.0% | Sold Out | 76 |
| RA Capital Management | 1 | 1.1M | 0 | +1.13M | — | 1.3% | New | 76 |
| Vestal Point Capital | 1 | 2.3M | 1.5M | +849.4K | +56.6% | 7.3% | Increased | 75 |
| Baker Bros. Advisors | 1 | 0 | 875.8K | -875.8K | -100.0% | 0.0% | Sold Out | 72 |
| Logos Global Management | 2 | 1.0M | 675.0K | +349.0K | +51.7% | 5.9% | Increased | 66 |
| Two Seas Capital | 2 | 244.6K | 0 | +244.6K | — | 1.2% | New | 64 |
| RTW Investments | 1 | 26.4K | 0 | +26.4K | — | 0.0% | New | 63 |
| Caligan Partners | 2 | 1.6M | 1.5M | +96.0K | +6.6% | 10.0% | Increased | 62 |
| ADAR1 Capital Management | 3 | 1.8M | 1.4M | +410.7K | +29.5% | 12.0% | Increased | 60 |
| CITADEL ADVISORS LLC | 1 | 1.4M | 544.3K | +894.0K | +164.2% | 0.1% | Increased | 60 |
| Point72 Asset Management, L.P. | 1 | 5.0K | 637.7K | -632.7K | -99.2% | 0.0% | Reduced | 60 |
| Maverick Capital | 2 | 40.0K | 0 | +40.0K | — | 0.0% | New | 59 |
| Qube Research & Technologies Ltd | 2 | 81.2K | 0 | +81.2K | — | 0.0% | New | 59 |
| Farallon Capital Management | 1 | 122.0K | 2.0K | +120.0K | +6000.0% | 0.1% | Increased | 59 |
| Alyeska Investment Group, L.P. | 2 | 23.9K | 0 | +23.9K | — | 0.0% | New | 58 |
| Balyasny Asset Management L.P. | 2 | 603.8K | 213.7K | +390.2K | +182.6% | 0.2% | Increased | 58 |
| Hudson Bay Capital Management | 3 | 0 | 139.4K | -139.4K | -100.0% | 0.0% | Sold Out | 58 |
| Senator Investment Group | 2 | 55.0K | 0 | +55.0K | — | 0.3% | New | 58 |
| Ghisallo Capital Management | 2 | 48.0K | 0 | +48.0K | — | 0.2% | New | 58 |
| Darwin Global Management | 1 | 3.6M | 3.5M | +152.9K | +4.4% | 9.3% | Increased | 57 |
| Perceptive Advisors | 1 | 74.0K | 328.9K | -254.9K | -77.5% | 0.2% | Reduced | 56 |
| Nantahala Capital Management | 3 | 267.5K | 137.2K | +130.3K | +94.9% | 1.1% | Increased | 55 |
| Caxton Associates | 3 | 0 | 24.8K | -24.8K | -100.0% | 0.0% | Sold Out | 55 |
| Trexquant Investment | 3 | 0 | 48.7K | -48.7K | -100.0% | 0.0% | Sold Out | 53 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | 2 | 26.5K | 400.5K | -374.0K | -93.4% | 0.0% | Reduced | 52 |
| Verition Fund Management | 2 | 105.8K | 25.9K | +79.8K | +307.7% | 0.1% | Increased | 52 |
| Cinctive Capital Management | 3 | 0 | 20.1K | -20.1K | -100.0% | 0.0% | Sold Out | 52 |
| Brevan Howard Capital Management | 3 | 0 | 9.5K | -9.5K | -100.0% | 0.0% | Sold Out | 51 |
| D. E. Shaw & Co., Inc. | 1 | 90.4K | 50.6K | +39.8K | +78.7% | 0.0% | Increased | 48 |
| Tudor Investment Corporation | 2 | 187.3K | 101.6K | +85.7K | +84.4% | 0.1% | Increased | 48 |
| Engineers Gate | 4 | 2.1K | 0 | +2.1K | — | 0.0% | New | 48 |
| Walleye Capital | 3 | 31.6K | 8.6K | +23.0K | +268.1% | 0.0% | Increased | 47 |
| Quinn Opportunity Partners | 4 | 66.0K | 16.0K | +50.0K | +312.8% | 0.4% | Increased | 47 |
| MILLENNIUM MANAGEMENT LLC | 2 | 233.7K | 606.0K | -372.3K | -61.4% | 0.0% | Reduced | 46 |
| CenterBook Partners | 4 | 33.8K | 8.4K | +25.4K | +300.8% | 0.2% | Increased | 46 |
| ExodusPoint Capital Management | 3 | 31.2K | 140.3K | -109.1K | -77.7% | 0.0% | Reduced | 45 |
| Holocene Advisors, LP | 2 | 418.7K | 258.7K | +160.0K | +61.9% | 0.1% | Increased | 45 |
| LMR Partners | 3 | 15.4K | 76.6K | -61.2K | -79.9% | 0.0% | Reduced | 44 |
| Affinity Asset Advisors | 2 | 330.0K | 405.0K | -75.0K | -18.5% | 2.2% | Reduced | 44 |
| Centiva Capital | 4 | 4.5K | 57.2K | -52.6K | -92.1% | 0.0% | Reduced | 44 |
| OrbiMed Advisors | 2 | 546.5K | 465.7K | +80.8K | +17.4% | 1.4% | Increased | 41 |
| Voleon Capital Management | 3 | 19.7K | 73.7K | -54.0K | -73.3% | 0.0% | Reduced | 41 |
| Readystate Asset Management | 3 | 241.5K | 202.0K | +39.5K | +19.6% | 2.2% | Increased | 38 |
| Boothbay Fund Management | 4 | 563.4K | 473.0K | +90.4K | +19.1% | 1.6% | Increased | 34 |
| J. Goldman & Co. | 3 | 5.4K | 12.7K | -7.3K | -57.3% | 0.0% | Reduced | 34 |
| Schonfeld Strategic Advisors | 3 | 8.9K | 14.3K | -5.4K | -37.7% | 0.0% | Reduced | 29 |
| Woodline Partners LP | 2 | 227.0K | 225.9K | +1.1K | +0.5% | 0.1% | Increased | 24 |
| Quantbot Technologies | 4 | 312 | 332 | -20 | -6.0% | 0.0% | Reduced | 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.