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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, Q1 2026

Institutional positions in Abivax S.A. as of Mar 31, 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
254
+9 vs. Q4 2025
Shares held
50.0M
−6.27M (−11.1%) vs. Q4 2025
Total value
$5.53B
−$2.08B (−27.3%) vs. Q4 2025
New holders
53
111 more added
Sold out
44
75 more reduced

2 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 2025: 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.

Institutional holdersQ1 2026: 254 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 0 institutionsQ4 2021: 0 institutionsQ1 2022: 0 institutionsQ2 2022: 0 institutionsQ3 2022: 0 institutionsQ4 2022: 0 institutionsQ1 2023: 0 institutionsQ2 2023: 0 institutionsQ3 2023: 0 institutionsQ4 2023: 30 institutionsQ1 2024: 36 institutionsQ2 2024: 38 institutionsQ3 2024: 40 institutionsQ4 2024: 48 institutionsQ1 2025: 46 institutionsQ2 2025: 43 institutionsQ3 2025: 165 institutionsQ4 2025: 247 institutionsQ1 2026: 254 institutionsQ2 2026: 303 institutions
Value heldQ1 2026: $5.53B
Q1 2021: $0Q2 2021: $0Q3 2021: $0Q4 2021: $0Q1 2022: $0Q2 2022: $0Q3 2022: $0Q4 2022: $0Q1 2023: $0Q2 2023: $0Q3 2023: $0Q4 2023: $227.8MQ1 2024: $334.2MQ2 2024: $371.6MQ3 2024: $312.8MQ4 2024: $218.6MQ1 2025: $198.5MQ2 2025: $234.6MQ3 2025: $4.41BQ4 2025: $7.61BQ1 2026: $5.53BQ2 2026: $7.18B
Institutions holding ABVX and their total value by quarter
QuarterHoldersValue
Q2 2026303$7.18B
Q1 2026254$5.53B
Q4 2025247$7.61B
Q3 2025165$4.41B
Q2 202543$234.6M
Q1 202546$198.5M
Q4 202448$218.6M
Q3 202440$312.8M
Q2 202438$371.6M
Q1 202436$334.2M
Q4 202330$227.8M
Q3 20230$0
Q2 20230$0
Q1 20230$0
Q4 20220$0
Q3 20220$0
Q2 20220$0
Q1 20220$0
Q4 20210$0
Q3 20210$0
Q2 20210$0
Q1 20210$0

Institutions, Q1 2026

Shares, value and share of portfolio for each institution holding Abivax S.A.; share changes are against Q4 2025.

Institutions holding ABVX in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Alberta Investment Management Corp45,000$5.01M0.03%+45,000New
Seven Fleet Capital Management LP43,052$4.79M1.51%+29,553+218.9%Added
HealthInvest Partners AB31,590$4.78M1.54%00.0%Unchanged
Syquant Capital SAS42,500$4.73M0.74%+42,500New
BNP Paribas Arbitrage, SA40,362$4.49M0.00%+37,345+1,237.8%Added
Manufacturers Life Insurance Company, The38,595$4.30M0.00%+3,063+8.6%Added
Candriam Luxembourg S.C.A.36,061$4.02M0.02%+36,061New
Group One Trading, L.P.35,767$3.98M0.13%+18,384+105.8%Added
Ally Bridge Group (NY) LLC33,712$3.75M3.73%−36,288−51.8%Reduced
Landscape Capital Management, L.L.C.30,353$3.38M0.21%+299+1.0%Added
Atika Capital Management LLC28,800$3.21M0.51%−26,200−47.6%Reduced
PFM Health Sciences, LP26,664$2.97M0.31%−5,214−16.4%Reduced
Verition Fund Management LLC25,948$2.89M0.03%−35,369−57.7%Reduced
Guggenheim Capital LLC25,074$2.79M0.02%−120.0%Reduced
Caxton Associates LLP24,750$2.76M0.06%+24,750New
Dorsey Wright & Associates23,452$2.61M0.32%+6,832+41.1%Added
Persistent Asset Partners Ltd22,838$2.54M0.99%−1,575−6.5%Reduced
Brummer Multi-Strategy AB22,428$2.50M10.40%+8,053+56.0%Added
Cinctive Capital Management LP20,055$2.23M0.15%+10,366+107.0%Added
Voya Investment Management LLC18,500$2.06M0.00%−3,195−14.7%Reduced
Militia Capital Management LLC17,000$1.89M0.42%+17,000New
Diversify Wealth Management, LLC17,736$1.88M0.03%+14,626+470.3%Added
Schroder Investment Management Group17,928$1.82M0.00%+17,928New
PSquared Asset Management AG16,200$1.80M0.63%+15,960+6,650.0%Added
Quinn Opportunity Partners LLC16,000$1.78M0.09%+16,000New
Fifth Lane Capital, LP15,858$1.77M2.14%+12,408+359.7%Added
HSBC Holdings PLC15,426$1.71M0.00%+11,887+335.9%Added
Royal Bank of Canada15,123$1.68M0.00%−15,744−51.0%Reduced
Banque Pictet & Cie SA15,040$1.67M0.02%−308−2.0%Reduced
Schonfeld Strategic Advisors LLC14,313$1.59M0.01%+4,934+52.6%Added
E Fund Management Co., Ltd.13,732$1.53M0.05%+13,732New
FORA Capital, LLC13,186$1.47M0.11%+5,327+67.8%Added
China Universal Asset Management Co., Ltd.12,903$1.44M0.11%+1,284+11.1%Added
J. Goldman & Co LP12,749$1.42M0.07%+9,457+287.3%Added
Progeny 3, Inc.12,240$1.36M0.07%00.0%Unchanged
AdvisorShares Investments LLC11,802$1.31M0.24%+602+5.4%Added
Mariner, LLC11,006$1.22M0.00%+2,025+22.5%Added
Stifel Financial Corp10,777$1.20M0.00%+543+5.3%Added
Legato Capital Management LLC10,533$1.17M0.11%−115−1.1%Reduced
Jefferies Financial Group Inc.10,153$1.13M0.01%−447,172−97.8%Reduced
Diametric Capital, LP10,000$1.11M0.29%+10,000New
Avidity Partners Management LP10,000$1.11M0.23%+10,000New
Walleye Trading LLC9,769$1.09M0.02%−8,117−45.4%Reduced
Himension Fund9,659$1.08M0.08%+1,909+24.6%Added
Virtu Financial LLC9,551$1.06M0.04%+9,551New
Brevan Howard Capital Management LP9,500$1.06M0.01%−27,770−74.5%Reduced
Kennedy Capital Management, Inc.8,757$975.1K0.02%+8,757New
New York State Common Retirement Fund8,672$965.6K0.00%00.0%Unchanged
Walleye Capital LLC8,594$956.9K0.01%−14,515−62.8%Reduced
CenterBook Partners LP8,436$939.3K0.05%+1,260+17.6%Added
Nine Masts Capital Ltd7,500$835.1K0.13%+3,500+87.5%Added
Gabelli Funds LLC7,450$829.6K0.01%+2,500+50.5%Added
Total Clarity Wealth Management, Inc.7,410$825.1K0.19%−1,835−19.8%Reduced
Cetera Investment Advisers7,260$808.4K0.00%+552+8.2%Added
FNY Investment Advisers, LLC7,056$785.0K0.35%+4,466+172.4%Added
Cannon Global Investment Management, LLC6,000$668.1K1.62%+3,818+175.0%Added
Atria Investments LLC5,992$667.2K0.01%+190+3.3%Added
SBI Okasan Asset Management Co.Ltd.6,500$659.8K0.03%+6,500New
Truist Financial Corp5,867$653.3K0.00%−454−7.2%Reduced
Mount Yale Investment Advisors, LLC5,730$638.0K0.02%+5,730New
T3 Companies, LLC5,700$634.7K0.87%+5,700New
Bamco Inc5,500$612.4K0.00%−19,500−78.0%Reduced
Burns Matteson Capital Management, LLC5,249$584.5K0.23%+2,568+95.8%Added
Mirae Asset Global ETFs Holdings Ltd.5,013$558.2K0.00%+5,013New
State Street Corp5,007$557.5K0.00%+683+15.8%Added
Greenland Capital Management LP5,000$556.8K0.11%−11,750−70.1%Reduced
Wesbanco Bank Inc5,000$556.8K0.02%00.0%Unchanged
Catalyst Funds Management Pty Ltd5,000$556.8K0.09%+5,000New
Optiver Holding B.V.4,538$505.3K0.02%+4,120+985.6%Added
Oppenheimer Asset Management Inc.4,496$500.6K0.01%+115+2.6%Added
Harvey Capital Management Inc4,300$478.8K0.11%+1,000+30.3%Added
Mirabella Financial Services LLP4,256$473.9K0.05%+4,256New
Crossmark Global Holdings, Inc.4,077$454.0K0.01%−2,195−35.0%Reduced
Colonial River Wealth Management, LLC4,041$450.0K0.16%−332−7.6%Reduced
Rangeley Capital, LLC4,000$445.4K0.48%00.0%Unchanged
Two Sigma Securities, LLC3,936$438.3K0.05%+3,936New
Allianz Asset Management GmbH3,800$423.1K0.00%−1,900−33.3%Reduced
The PNC Financial Services Group, Inc.3,766$419.3K0.00%+521+16.1%Added
Jones Financial Companies LLLP4,070$417.1K0.00%+4,057+31,207.7%Added
Bank of Hawaii3,545$394.7K0.02%+91+2.6%Added
Prelude Capital Management, LLC3,531$393.2K0.03%+3,531New
AlphaCentric Advisors LLC3,424$381.3K0.38%+3,424New
Nelson, Van Denburg & Campbell Wealth Management Group, LLC3,240$360.8K0.01%+444+15.9%Added
Skopos Labs, Inc.3,088$343.8K0.01%−82−2.6%Reduced
Personal Cfo Solutions, LLC3,027$337.1K0.05%+288+10.5%Added
SG Americas Securities, LLC2,929$326.0K0.00%+2,929New
Wells Fargo & Company2,896$322.5K0.00%+2,159+292.9%Added
Simplex Trading, LLC2,850$317.3K0.01%+1,615+130.8%Added
Hunting Hill Global Capital, LLC2,775$309.0K0.37%+2,775New
ProShare Advisors LLC2,748$306.0K0.00%+141+5.4%Added
Guardian Partners Inc.2,700$300.6K0.03%+2,700New
Connective Portfolio Management, LLC2,700$300.6K0.81%+2,700New
SmartHarvest Portfolios, LLC2,696$300.2K0.13%+280+11.6%Added
Sectoral Asset Management Inc2,340$297.9K0.25%+2,340New
GTS Securities LLC2,652$295.3K0.01%+2,652New
Integrated Wealth Concepts LLC2,595$289.0K0.00%+2,595New
CWM, LLC2,550$283.9K0.00%+2,538+21,150.0%Added
Ashton Thomas Securities, LLC2,500$278.4K0.03%+2,500New
Hantz Financial Services, Inc.2,398$267.0K0.00%+19+0.8%Added
Clear Wave Wealth Management LLC2,312$257.4K0.07%+2,312New