ABVX ABIVAX Société Anonyme
ABIVAX Société Anonyme (ABVX) Institutional Ownership
What the institutions did with ABVX last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
Sign in or subscribeOwnership map
Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| TCG Crossover Management, LLC | 6.0M | 10.9% |
| Darwin Global Management, Ltd. | 3.6M | 6.6% |
| Helikon Investments Ltd | 2.8M | 5.1% |
| Vestal Point Capital, LP | 2.3M | 4.3% |
| Jupiter Topco LLC | 1.9M | 3.5% |
| UBS Group AG | 1.8M | 3.3% |
| ADAR1 Capital Management, LLC | 1.8M | 3.3% |
| Caligan Partners LP | 1.6M | 2.8% |
| CITADEL ADVISORS LLC | 1.4M | 2.6% |
| MORGAN STANLEY | 1.4M | 2.6% |
| WESTFIELD CAPITAL MANAGEMENT CO LP | 1.3M | 2.4% |
| RA CAPITAL MANAGEMENT, L.P. | 1.1M | 2.1% |
| NORGES BANK | 1.1M | 2.0% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1.1M | 1.9% |
| Logos Global Management LP | 1.0M | 1.9% |
| Octagon Capital Advisors LP | 993.0K | 1.8% |
| BANK OF AMERICA CORP /DE/ | 971.4K | 1.8% |
| Eversept Partners, LP | 913.9K | 1.7% |
| GOLDMAN SACHS GROUP INC | 792.7K | 1.4% |
| Nationale-Nederlanden Powszechne Towarzystwo Emerytalne S.A. | 765.3K | 1.4% |
| Cormorant Asset Management, LP | 675.0K | 1.2% |
| Boxer Capital Management, LLC | 605.0K | 1.1% |
| Balyasny Asset Management L.P. | 603.8K | 1.1% |
| Siren, L.L.C. | 576.0K | 1.0% |
| BlackRock, Inc. | 574.1K | 1.0% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| UBS Group AG | Reduced | 4.5M | 1.8M | -2.7M |
| Helikon Investments Ltd | Increased | 1.0M | 2.8M | +1.8M |
| RA CAPITAL MANAGEMENT, L.P. | New | 0 | 1.1M | +1.1M |
| FMR LLC | Reduced | 1.3M | 191.7K | -1.1M |
| CITADEL ADVISORS LLC | Increased | 544.3K | 1.4M | +894.0K |
| BAKER BROS. ADVISORS LP | Sold Out | 875.8K | 0 | -875.8K |
| Vestal Point Capital, LP | Increased | 1.5M | 2.3M | +849.4K |
| LORD, ABBETT & CO. LLC | Reduced | 854.9K | 9.5K | -845.4K |
| Paradigm Biocapital Advisors LP | Sold Out | 772.5K | 0 | -772.5K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Increased | 381.3K | 1.1M | +672.6K |
| Point72 Asset Management, L.P. | Reduced | 637.7K | 5.0K | -632.7K |
| JPMORGAN CHASE & CO | Reduced | 635.1K | 5.7K | -629.3K |
| Siren, L.L.C. | New | 0 | 576.0K | +576.0K |
| TCG Crossover Management, LLC | Reduced | 6.5M | 6.0M | -473.3K |
| GOLDMAN SACHS GROUP INC | Increased | 348.8K | 792.7K | +443.9K |
| ADAR1 Capital Management, LLC | Increased | 1.4M | 1.8M | +410.7K |
| SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC | New | 0 | 410.0K | +410.0K |
| Boxer Capital Management, LLC | Increased | 200.0K | 605.0K | +405.0K |
| PRICE T ROWE ASSOCIATES INC /MD/ | Reduced | 691.7K | 300.4K | -391.3K |
| Balyasny Asset Management L.P. | Increased | 213.7K | 603.8K | +390.2K |
| Pictet Asset Management Holding SA | Increased | 103.5K | 492.1K | +388.5K |
| ADAGE CAPITAL PARTNERS GP, L.L.C. | Reduced | 400.5K | 26.5K | -374.0K |
| MILLENNIUM MANAGEMENT LLC | Reduced | 606.0K | 233.7K | -372.3K |
| Logos Global Management LP | Increased | 675.0K | 1.0M | +349.0K |
| STEMPOINT CAPITAL LP | Reduced | 627.6K | 283.7K | -343.9K |
| Octagon Capital Advisors LP | Increased | 677.0K | 993.0K | +316.0K |
| Melqart Asset Management (UK) Ltd | New | 0 | 307.3K | +307.3K |
| MORGAN STANLEY | Reduced | 1.7M | 1.4M | -272.8K |
| Ikarian Capital, LLC | Increased | 57.6K | 328.6K | +271.0K |
| HRT FINANCIAL LP | Increased | 45.4K | 312.8K | +267.4K |
| PERCEPTIVE ADVISORS LLC | Reduced | 328.9K | 74.0K | -254.9K |
| Two Seas Capital LP | New | 0 | 244.6K | +244.6K |
| BANK OF AMERICA CORP /DE/ | Increased | 735.7K | 971.4K | +235.7K |
| MPM BIOIMPACT LLC | Increased | 107.3K | 336.3K | +229.1K |
| GREAT POINT PARTNERS LLC | New | 0 | 204.3K | +204.3K |
| Kite Lake Capital Management (UK) LLP | Increased | 100.0K | 300.6K | +200.6K |
| Western Standard LLC | New | 0 | 200.0K | +200.0K |
| Vivo Capital, LLC | Increased | 239.5K | 414.9K | +175.4K |
| Focus Partners Wealth | New | 0 | 161.9K | +161.9K |
| Holocene Advisors, LP | Increased | 258.7K | 418.7K | +160.0K |
| Darwin Global Management, Ltd. | Increased | 3.5M | 3.6M | +152.9K |
| BlackRock, Inc. | Increased | 427.3K | 574.1K | +146.7K |
| Evergreen Quality Fund GP, Ltd. | Sold Out | 144.3K | 0 | -144.3K |
| Hudson Bay Capital Management LP | Sold Out | 139.4K | 0 | -139.4K |
| Sio Capital Management, LLC | Sold Out | 135.8K | 0 | -135.8K |
| SILVERARC CAPITAL MANAGEMENT, LLC | Reduced | 302.5K | 169.6K | -132.9K |
| APEIRON CAPITAL Ltd | New | 0 | 130.6K | +130.6K |
| Nantahala Capital Management, LLC | Increased | 137.2K | 267.5K | +130.3K |
| Squadron Capital Management LLC | Sold Out | 130.0K | 0 | -130.0K |
| Ensign Peak Advisors, Inc | Reduced | 631.8K | 504.5K | -127.4K |
| Invesco Ltd. | Reduced | 126.4K | 3.1K | -123.4K |
| WELLINGTON MANAGEMENT GROUP LLP | New | 0 | 123.3K | +123.3K |
| DG Capital Management, LLC | New | 0 | 122.3K | +122.3K |
| FARALLON CAPITAL MANAGEMENT LLC | Increased | 2.0K | 122.0K | +120.0K |
| ExodusPoint Capital Management, LP | Reduced | 140.3K | 31.2K | -109.1K |
| Caligan Partners LP | Increased | 1.5M | 1.6M | +96.0K |
| WELLS FARGO & COMPANY/MN | Increased | 2.9K | 98.1K | +95.2K |
| Aberdeen Group plc | Increased | 431.2K | 522.0K | +90.8K |
| BOOTHBAY FUND MANAGEMENT, LLC | Increased | 473.0K | 563.4K | +90.4K |
| Nicholas Investment Partners, LP | Sold Out | 90.2K | 0 | -90.2K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.