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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
Sunrise Financial Services, LLC4$4450.00%+4New
Basecamp Wealth Advisors LLC4$4450.00%+4New
Northwestern Mutual Wealth Management Co6$6680.00%+3+100.0%Added
Fifth Third Bancorp7$7790.00%+7New
Bell Investment Advisors, Inc9$1.00K0.00%+5+125.0%Added
Atlantic Union Bankshares Corp10$1.11K0.00%−15−60.0%Reduced
Allworth Financial LP11$1.23K0.00%−5−31.3%Reduced
Toth Financial Advisory Corp11$1.23K0.00%+11New
Pinnacle Wealth Planning Services, Inc.15$1.67K0.00%−3−16.7%Reduced
MAI Capital Management25$2.78K0.00%−1−3.8%Reduced
Rockefeller Capital Management L.P.50$5.57K0.00%−1−2.0%Reduced
US Bancorp51$5.68K0.00%−40−44.0%Reduced
Whipplewood Advisors, LLC62$6.90K0.00%+62New
Parallel Advisors, LLC69$7.68K0.00%+69New
Grove Bank & Trust76$8.46K0.00%+6+8.6%Added
Advisor Group Holdings, Inc.85$9.46K0.00%−20−19.0%Reduced
Private Trust Co NA87$9.69K0.00%+60+222.2%Added
Financial Management Professionals, Inc.100$11.1K0.00%00.0%Unchanged
Rothschild Investment LLC100$11.1K0.00%+100New
Zurcher Kantonalbank (Zurich Cantonalbank)105$11.7K0.00%+105New
Rossby Financial, LCC120$13.8K0.00%+120New
E Fund Management (Hong Kong) Co., Ltd.132$14.7K0.01%+132New
HighMark Wealth Management LLC150$16.7K0.01%−80−34.8%Reduced
GWM Advisors LLC154$17.1K0.00%00.0%Unchanged
Farther Finance Advisors, LLC161$18.5K0.00%+133+475.0%Added
CoreCap Advisors, LLC191$21.3K0.00%+191New
Manchester Capital Management LLC200$22.3K0.00%+200New
ORG Wealth Partners, LLC203$22.6K0.00%+150+283.0%Added
GHP Investment Advisors, Inc.230$25.6K0.00%+140+155.6%Added
Quantbot Technologies LP332$37.0K0.00%−143−30.1%Reduced
Union Bancaire Privee, UBP SA500$40.6K0.00%00.0%Unchanged
EverSource Wealth Advisors, LLC400$44.5K0.00%+25+6.7%Added
First Horizon Corp441$49.1K0.00%+13+3.0%Added
Advisory Services Network, LLC442$49.2K0.00%+442New
WPG Advisers, LLC472$52.6K0.04%+18+4.0%Added
Steward Partners Investment Advisory, LLC481$53.6K0.00%+375+353.8%Added
LRI Investments, LLC545$60.7K0.01%+453+492.4%Added
GAMMA Investing LLC548$61.0K0.00%−8−1.4%Reduced
Tower Research Capital LLC (TRC)670$74.6K0.00%+560+509.1%Added
Assetmark, Inc886$98.7K0.00%+260+41.5%Added
Covestor Ltd891$99.0K0.07%−83−8.5%Reduced
Gordian Capital Singapore Pte Ltd1,000$111.3K0.19%+1,000New
Bellevue Group AG1,048$116.7K0.00%+1,048New
GF Fund Management Co. Ltd.1,326$147.7K0.00%+167+14.4%Added
Rhumbline Advisers1,441$160.4K0.00%−277−16.1%Reduced
Citigroup Inc1,729$192.5K0.00%+55+3.3%Added
Wiley Bros.-Aintree Capital, LLC1,854$206.4K0.00%−360−16.3%Reduced
Gsa Capital Partners LLP1,857$207.0K0.01%+1,857New
Pinnacle Associates Ltd1,864$207.6K0.00%+1,864New
Pinnacle Wealth Management Advisory Group, LLC1,864$207.6K0.01%+1,864New
Farallon Capital Management, L.L.C.2,000$222.7K0.00%−385,000−99.5%Reduced
Merit Financial Group, LLC2,237$249.1K0.00%+181+8.8%Added
Sanctuary Advisors, LLC2,247$250.2K0.00%+36+1.6%Added
Moody Aldrich Partners LLC2,258$251.4K0.05%−821−26.7%Reduced
Clear Wave Wealth Management LLC2,312$257.4K0.07%+2,312New
Hantz Financial Services, Inc.2,398$267.0K0.00%+19+0.8%Added
Ashton Thomas Securities, LLC2,500$278.4K0.03%+2,500New
CWM, LLC2,550$283.9K0.00%+2,538+21,150.0%Added
Integrated Wealth Concepts LLC2,595$289.0K0.00%+2,595New
GTS Securities LLC2,652$295.3K0.01%+2,652New
Sectoral Asset Management Inc2,340$297.9K0.25%+2,340New
SmartHarvest Portfolios, LLC2,696$300.2K0.13%+280+11.6%Added
Guardian Partners Inc.2,700$300.6K0.03%+2,700New
Connective Portfolio Management, LLC2,700$300.6K0.81%+2,700New
ProShare Advisors LLC2,748$306.0K0.00%+141+5.4%Added
Hunting Hill Global Capital, LLC2,775$309.0K0.37%+2,775New
Simplex Trading, LLC2,850$317.3K0.01%+1,615+130.8%Added
Wells Fargo & Company2,896$322.5K0.00%+2,159+292.9%Added
SG Americas Securities, LLC2,929$326.0K0.00%+2,929New
Personal Cfo Solutions, LLC3,027$337.1K0.05%+288+10.5%Added
Skopos Labs, Inc.3,088$343.8K0.01%−82−2.6%Reduced
Nelson, Van Denburg & Campbell Wealth Management Group, LLC3,240$360.8K0.01%+444+15.9%Added
AlphaCentric Advisors LLC3,424$381.3K0.38%+3,424New
Prelude Capital Management, LLC3,531$393.2K0.03%+3,531New
Bank of Hawaii3,545$394.7K0.02%+91+2.6%Added
Jones Financial Companies LLLP4,070$417.1K0.00%+4,057+31,207.7%Added
The PNC Financial Services Group, Inc.3,766$419.3K0.00%+521+16.1%Added
Allianz Asset Management GmbH3,800$423.1K0.00%−1,900−33.3%Reduced
Two Sigma Securities, LLC3,936$438.3K0.05%+3,936New
Rangeley Capital, LLC4,000$445.4K0.48%00.0%Unchanged
Colonial River Wealth Management, LLC4,041$450.0K0.16%−332−7.6%Reduced
Crossmark Global Holdings, Inc.4,077$454.0K0.01%−2,195−35.0%Reduced
Mirabella Financial Services LLP4,256$473.9K0.05%+4,256New
Harvey Capital Management Inc4,300$478.8K0.11%+1,000+30.3%Added
Oppenheimer Asset Management Inc.4,496$500.6K0.01%+115+2.6%Added
Optiver Holding B.V.4,538$505.3K0.02%+4,120+985.6%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
State Street Corp5,007$557.5K0.00%+683+15.8%Added
Mirae Asset Global ETFs Holdings Ltd.5,013$558.2K0.00%+5,013New
Burns Matteson Capital Management, LLC5,249$584.5K0.23%+2,568+95.8%Added
Bamco Inc5,500$612.4K0.00%−19,500−78.0%Reduced
T3 Companies, LLC5,700$634.7K0.87%+5,700New
Mount Yale Investment Advisors, LLC5,730$638.0K0.02%+5,730New
Truist Financial Corp5,867$653.3K0.00%−454−7.2%Reduced
SBI Okasan Asset Management Co.Ltd.6,500$659.8K0.03%+6,500New
Atria Investments LLC5,992$667.2K0.01%+190+3.3%Added
Cannon Global Investment Management, LLC6,000$668.1K1.62%+3,818+175.0%Added
FNY Investment Advisers, LLC7,056$785.0K0.35%+4,466+172.4%Added