Abivax S.A.
ABVX- Exchange
- Nasdaq
- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001956827
No open-market purchases or sales by Abivax S.A. insiders were filed in the last 90 days; 303 institutions reported holding it in 13F filings for Q2 2026, worth $7.18B in total; Maverick Capital is the only superinvestor holding it.
Other share classesAAVXF
13F holders, Q2 2026
Institutional positions in Abivax S.A. as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 303
- +52 vs. Q1 2026
- Shares held
- 54.9M
- +5.79M (+11.8%) vs. Q1 2026
- Total value
- $7.18B
- +$1.75B (+32.2%) vs. Q1 2026
- New holders
- 92
- 97 more added
- Sold out
- 40
- 102 more reduced
3 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ABVX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 303 | $7.18B |
| Q1 2026 | 254 | $5.53B |
| Q4 2025 | 247 | $7.61B |
| Q3 2025 | 165 | $4.41B |
| Q2 2025 | 43 | $234.6M |
| Q1 2025 | 46 | $198.5M |
| Q4 2024 | 48 | $218.6M |
| Q3 2024 | 40 | $312.8M |
| Q2 2024 | 38 | $371.6M |
| Q1 2024 | 36 | $334.2M |
| Q4 2023 | 30 | $227.8M |
| Q3 2023 | 0 | $0 |
| Q2 2023 | 0 | $0 |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Abivax S.A.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| TCG Crossover Management, LLC | 6,007,834 | $800.6M | 19.24% | −473,251−7.3% | Reduced |
| Helikon Investments Ltd | 2,787,131 | $371.4M | 11.10% | +1,773,807+175.0% | Added |
| Darwin Global Management, Ltd. | 3,621,583 | $348.2M | 9.26% | +152,926+4.4% | Added |
| Vestal Point Capital, LP | 2,349,443 | $313.1M | 7.32% | +849,443+56.6% | Added |
| Jupiter Topco LLC | 1,913,933 | $255.1M | 0.10% | +1,913,933 | New |
| UBS Group AG | 1,844,918 | $245.9M | 0.04% | −2,702,488−59.4% | Reduced |
| ADAR1 Capital Management, LLC | 1,804,703 | $240.5M | 11.30% | +410,684+29.5% | Added |
| Caligan Partners LP | 1,557,924 | $207.6M | 10.02% | +96,000+6.6% | Added |
| Citadel Advisors LLC | 1,438,352 | $191.7M | 0.11% | +894,014+164.2% | Added |
| Morgan Stanley | 1,432,185 | $190.9M | 0.01% | −272,773−16.0% | Reduced |
| Westfield Capital Management Co LP | 1,309,825 | $174.5M | 0.57% | −13,113−1.0% | Reduced |
| Ra Capital Management, L.P. | 1,132,557 | $150.9M | 1.31% | +1,132,557 | New |
| Norges Bank | 1,100,000 | $146.6M | 0.01% | +1,100,000 | New |
| Susquehanna International Group, LLP | 1,053,896 | $140.4M | 0.12% | +672,614+176.4% | Added |
| Logos Global Management LP | 1,024,000 | $136.5M | 5.87% | +349,000+51.7% | Added |
| Octagon Capital Advisors LP | 993,000 | $132.3M | 12.15% | +316,000+46.7% | Added |
| Bank of America Corp | 971,439 | $129.5M | 0.01% | +235,710+32.0% | Added |
| Eversept Partners, LP | 913,880 | $121.8M | 6.64% | −20,543−2.2% | Reduced |
| Goldman Sachs Group Inc | 792,712 | $105.6M | 0.01% | +443,915+127.3% | Added |
| Nationale-Nederlanden Powszechne Towarzystwo Emerytalne S.A. | 765,332 | $102.0M | 5.59% | −583−0.1% | Reduced |
| Cormorant Asset Management, LP | 675,000 | $90.0M | 4.61% | −85,000−11.2% | Reduced |
| Boxer Capital Management, LLC | 605,000 | $80.6M | 6.07% | +405,000+202.5% | Added |
| Balyasny Asset Management LLC | 603,840 | $80.5M | 0.15% | +390,151+182.6% | Added |
| Siren, L.L.C. | 576,000 | $76.8M | 1.56% | +576,000 | New |
| BlackRock, Inc. | 574,061 | $76.5M | 0.00% | +146,726+34.3% | Added |
| Boothbay Fund Management, LLC | 563,367 | $75.1M | 1.44% | +90,406+19.1% | Added |
| OrbiMed Advisors LLC | 546,522 | $72.8M | 1.38% | +80,822+17.4% | Added |
| Standard Life Aberdeen plc | 522,025 | $69.6M | 0.10% | +90,784+21.1% | Added |
| Saturn V Capital Management LLC | 518,865 | $69.1M | 9.91% | −23,831−4.4% | Reduced |
| Artia Global Partners LP | 516,447 | $68.8M | 13.08% | −84,300−14.0% | Reduced |
| Ensign Peak Advisors, Inc | 504,471 | $67.2M | 0.11% | −127,367−20.2% | Reduced |
| Pictet Asset Management Holding SA | 492,068 | $65.6M | 0.06% | +388,523+375.2% | Added |
| First Turn Management, LLC | 489,889 | $65.3M | 6.98% | +24,020+5.2% | Added |
| Holocene Advisors, LP | 418,657 | $55.8M | 0.13% | +160,000+61.9% | Added |
| Vivo Capital, LLC | 414,899 | $55.3M | 5.05% | +175,360+73.2% | Added |
| Summit Partners Public Asset Management, LLC | 410,000 | $54.6M | 1.42% | +410,000 | New |
| Eventide Asset Management, LLC | 394,957 | $52.6M | 0.70% | +74,381+23.2% | Added |
| MPM Oncology Impact Management LP | 336,347 | $44.8M | 2.73% | +229,079+213.6% | Added |
| Affinity Asset Advisors, LLC | 330,000 | $44.0M | 2.15% | −75,000−18.5% | Reduced |
| Ikarian Capital, LLC | 328,635 | $43.4M | 7.10% | +271,000+470.2% | Added |
| Melqart Asset Management (UK) Ltd | 307,250 | $40.9M | 3.90% | +307,250 | New |
| Kite Lake Capital Management (UK) LLP | 300,600 | $40.1M | 14.20% | +200,600+200.6% | Added |
| Price T Rowe Associates Inc | 300,365 | $40.0M | 0.00% | −391,305−56.6% | Reduced |
| Franklin Resources Inc | 299,754 | $39.9M | 0.01% | −83,076−21.7% | Reduced |
| StemPoint Capital LP | 283,657 | $37.8M | 6.54% | −30,134−9.6% | Reduced |
| HRT Financial LP | 270,612 | $36.1M | 0.07% | +225,241+496.4% | Added |
| Principal Financial Group Inc | 257,678 | $34.3M | 0.02% | −54,596−17.5% | Reduced |
| Two Seas Capital LP | 244,590 | $32.6M | 1.24% | +244,590 | New |
| Readystate Asset Management LP | 241,530 | $32.2M | 1.31% | +39,508+19.6% | Added |
| Millennium Management LLC | 233,740 | $31.1M | 0.02% | −372,252−61.4% | Reduced |
| Woodline Partners LP | 226,966 | $30.2M | 0.09% | +1,074+0.5% | Added |
| Patient Square Capital LP | 206,500 | $27.5M | 4.26% | +85,255+70.3% | Added |
| Great Point Partners LLC | 204,314 | $27.2M | 6.41% | +204,314 | New |
| Western Standard LLC | 200,000 | $26.7M | 9.03% | +200,000 | New |
| Jennison Associates LLC | 196,524 | $26.2M | 0.02% | −14,010−6.7% | Reduced |
| FMR LLC | 191,689 | $25.5M | 0.00% | −1,094,684−85.1% | Reduced |
| Tudor Investment Corp Et Al | 187,335 | $25.0M | 0.10% | +85,724+84.4% | Added |
| Findell Capital Management LLC | 185,000 | $24.7M | 4.06% | +80,000+76.2% | Added |
| Silverarc Capital Management, LLC | 169,593 | $22.6M | 2.52% | −132,937−43.9% | Reduced |
| Diadema Partners LP | 163,644 | $21.6M | 7.63% | +87,700+115.5% | Added |
| Colony Group, LLC | 161,874 | $21.6M | 0.02% | +161,874 | New |
| Creek Drive Management Group LLC | 157,500 | $21.0M | 12.97% | +2,500+1.6% | Added |
| Nan Fung Trinity (HK) Ltd | 142,083 | $18.9M | 1.87% | +13,143+10.2% | Added |
| Nantahala Capital Management, LLC | 133,759 | $17.8M | 1.08% | −3,478−2.5% | Reduced |
| Apeiron Capital Ltd | 130,600 | $17.4M | 11.18% | +130,600 | New |
| Ameriprise Financial Inc | 129,816 | $17.3M | 0.00% | +46,785+56.3% | Added |
| Wellington Management Group LLP | 123,289 | $16.4M | 0.00% | +123,289 | New |
| DG Capital Management, LLC | 122,267 | $16.3M | 5.64% | +122,267 | New |
| Farallon Capital Management, L.L.C. | 122,000 | $16.3M | 0.10% | +120,000+6,000.0% | Added |
| HighVista Strategies LLC | 113,031 | $15.1M | 3.43% | −223−0.2% | Reduced |
| Seven Fleet Capital Management LP | 111,334 | $14.8M | 2.45% | +68,282+158.6% | Added |
| Prosight Management, LP | 107,394 | $14.3M | 2.47% | +2,394+2.3% | Added |
| Verition Fund Management LLC | 105,791 | $14.1M | 0.10% | +79,843+307.7% | Added |
| TimesSquare Capital Management, LLC | 101,092 | $13.5M | 0.20% | −8,091−7.4% | Reduced |
| Wells Fargo & Company | 98,077 | $13.1M | 0.00% | +95,181+3,286.6% | Added |
| ACT Capital Management, LLC | 97,000 | $12.9M | 8.44% | +26,100+36.8% | Added |
| SEI Investments Co | 92,176 | $12.3M | 0.01% | −2,044−2.2% | Reduced |
| D. E. Shaw & Co., Inc. | 90,357 | $12.0M | 0.01% | +39,807+78.7% | Added |
| Seven Grand Managers, LLC | 90,000 | $12.0M | 0.48% | +40,000+80.0% | Added |
| Toronto Dominion Bank | 88,331 | $11.8M | 0.02% | +88,331 | New |
| IMC-Chicago, LLC | 87,392 | $11.6M | 0.11% | −18,751−17.7% | Reduced |
| Oddo BHF Asset Management SAS | 81,496 | $10.9M | 0.50% | 00.0% | Unchanged |
| Qube Research & Technologies Ltd | 81,216 | $10.8M | 0.01% | +81,216 | New |
| Erste Asset Management GmbH | 110,000 | $10.6M | 0.08% | +60,000+120.0% | Added |
| LPL Financial LLC | 78,999 | $10.5M | 0.00% | +3,633+4.8% | Added |
| Andera Partners | 78,125 | $10.4M | 5.04% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 77,900 | $10.4M | 0.01% | −30,300−28.0% | Reduced |
| Optiver Holding B.V. | 76,368 | $10.2M | 0.15% | +71,830+1,582.9% | Added |
| Perceptive Advisors LLC | 74,000 | $9.86M | 0.15% | −254,884−77.5% | Reduced |
| Apis Capital Advisors, LLC | 74,000 | $9.86M | 0.96% | −54,800−42.5% | Reduced |
| Nwi Management LP | 72,000 | $9.60M | 0.61% | +72,000 | New |
| Quinn Opportunity Partners LLC | 66,045 | $8.80M | 0.41% | +50,045+312.8% | Added |
| Velan Capital Investment Management LP | 65,630 | $8.75M | 5.36% | −11,370−14.8% | Reduced |
| SummitTX Capital, L.P. | 65,216 | $8.69M | 0.23% | +65,216 | New |
| Alberta Investment Management Corp | 65,000 | $8.66M | 0.05% | +20,000+44.4% | Added |
| Envestnet Asset Management Inc | 63,354 | $8.44M | 0.00% | +4,145+7.0% | Added |
| Jane Street Group, LLC | 60,195 | $8.02M | 0.01% | −33,946−36.1% | Reduced |
| HealthInvest Partners AB | 58,170 | $7.75M | 2.09% | +26,580+84.1% | Added |
| Samsara BioCapital, LLC | 55,095 | $7.34M | 0.60% | −1,486−2.6% | Reduced |
| Senator Investment Group LP | 55,000 | $7.33M | 0.27% | +55,000 | New |