ABVX · Abivax S.A. · Holdings

$92.88 -2.22 (-2.33%) At close · Oct 2

Market Cap

$8.14B

87.25M

Volume · Oct 2 644.38K Avg daily vol (3M) 1.09M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP →

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.

The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.

Quarter:

Holders: 309

Total Value: $8,872,970,630

Total Shares: 66,601,907

Showing 1–100 of 367 holdings by value · page 1 of 4

Institutional Ownership Trend

12 quarters

Holder Concentration

Across 308 13F filers

Top Holder

9.0%

of institutional value

Top 5

32.0%

of institutional value

Top 10

46.3%

of institutional value

HHI

309

Broadly held

Showing 100 of 367

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

TCG Crossover Management, LLC

$800,603,958

9.02%

6,007,834

Darwin Global Management, Ltd.

$482,612,150

5.44%

3,621,583

Helikon Investments Ltd

$371,413,077

4.19%

2,787,131

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$327,659,688

3.69%

2,458,800

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	2,458,800	$327,659,688	100.0%	Other

Vestal Point Capital, LP

$313,086,774

3.53%

2,349,443

Jupiter Topco LLC

$255,050,710

2.87%

1,913,933

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JANUS HENDERSON INVESTORS UK Ltd	4,911	$654,439	0.3%	Defined
JANUS HENDERSON INVESTORS US LLC	1,909,022	$254,396,271	99.7%	Defined

UBS Group AG

$245,853,771

2.77%

1,844,918

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Financial Services Inc	1,824	$243,066	0.1%	Defined
UBS AG	1,842,299	$245,504,764	99.9%	Defined
UBS Switzerland AG	627	$83,554	0.0%	Defined
UBS Securities LLC	168	$22,387	0.0%	Defined

ADAR1 Capital Management, LLC

$240,494,721

2.71%

1,804,703

CITADEL ADVISORS LLC

$213,855,648

2.41%

1,604,800

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	1,604,800	$213,855,648	100.0%	Defined

Caligan Partners LP

$207,608,952

2.34%

1,557,924

CITADEL ADVISORS LLC

$191,674,786

2.16%

1,438,352

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	851,611	$113,485,681	59.2%	Defined
Held directly	586,741	$78,189,105	40.8%	Defined

MORGAN STANLEY

$190,852,969

2.15%

1,432,185

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO INTERNATIONAL PLC	807,217	$107,569,737	56.4%	Defined
MORGAN STANLEY & CO. LLC	161,319	$21,497,369	11.3%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	350,108	$46,655,392	24.4%	Defined
MORGAN STANLEY SMITH BARNEY LLC	11,665	$1,554,477	0.8%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	101,876	$13,575,994	7.1%	Defined

WESTFIELD CAPITAL MANAGEMENT CO LP

$174,547,279

1.97%

1,309,825

CITADEL ADVISORS LLC

$159,991,956

1.80%

1,200,600

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	1,200,600	$159,991,956	100.0%	Defined

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$151,276,752

1.70%

1,135,200

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	1,135,200	$151,276,752	100.0%	Other

RA CAPITAL MANAGEMENT, L.P.

$150,924,545

1.70%

1,132,557

NORGES BANK

$146,586,000

1.65%

1,100,000

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$140,442,180

1.58%

1,053,896

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	1,053,896	$140,442,180	100.0%	Other

Logos Global Management LP

$136,458,240

1.54%

1,024,000

Octagon Capital Advisors LP

$132,327,180

1.49%

993,000

BANK OF AMERICA CORP /DE/

$129,453,959

1.46%

971,439

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BANK OF AMERICA NA	788,899	$105,128,680	81.2%	Defined
BOFA SECURITIES, INC.	169,994	$22,653,400	17.5%	Defined
MANAGED ACCOUNT ADVISORS LLC	12,546	$1,671,879	1.3%	Defined

Eversept Partners, LP

$121,783,648

1.37%

913,880

GOLDMAN SACHS GROUP INC

$105,636,801

1.19%

792,712

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	683,227	$91,046,830	86.2%	Defined
GOLDMAN SACHS ASSET MANAGEMENT, L.P.	109,485	$14,589,971	13.8%	Defined

Nationale-Nederlanden Powszechne Towarzystwo Emerytalne S.A.

$101,988,142

1.15%

765,332

Cormorant Asset Management, LP

$89,950,500

1.01%

675,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Chen Bihua	675,000	$89,950,500	100.0%	Defined

Boxer Capital Management, LLC

$80,622,300

0.91%

605,000

Balyasny Asset Management L.P.

$80,467,718

0.91%

603,840

Siren, L.L.C.

$76,757,760

0.87%

576,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Invus Group, LLC	576,000	$76,757,760	100.0%	Defined

BlackRock, Inc.

$76,499,366

0.86%

574,061

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BLACKROCK FINANCIAL MANAGEMENT INC/DE	223	$29,716	0.0%	Sole
BlackRock Fund Advisors	463,624	$61,782,534	80.8%	Sole
BlackRock Institutional Trust Company, N.A.	67,235	$8,959,736	11.7%	Sole
BlackRock Asset Management Ireland Ltd	42,953	$5,723,916	7.5%	Sole
Aperio Group, LLC	26	$3,464	0.0%	Sole

LMR Partners LLP

$75,531,768

0.85%

566,800

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
LMR Partners LLC	120,000	$15,991,200	21.2%	Sole
Wabon Partners, L.P.	446,800	$59,540,568	78.8%	Sole

BOOTHBAY FUND MANAGEMENT, LLC

$75,074,286

0.85%

563,367

ORBIMED ADVISORS LLC

$72,829,521

0.82%

546,522

Aberdeen Group plc

$69,565,051

0.78%

522,025

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
abrdn Inc.	522,025	$69,565,051	100.0%	Defined

Saturn V Capital Management LP

$69,143,949

0.78%

518,865

Artia Global Partners LP

$68,821,727

0.78%

516,447

Ensign Peak Advisors, Inc

$67,225,805

0.76%

504,471

Pictet Asset Management Holding SA

$65,572,981

0.74%

492,068

First Turn Management, LLC

$65,282,608

0.74%

489,889

Holocene Advisors, LP

$55,790,231

0.63%

418,657

Vivo Capital, LLC

$55,289,440

0.62%

414,899

SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC

$54,636,600

0.62%

410,000

GREAT POINT PARTNERS LLC

$53,304,000

0.60%

400,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JAY JEFFREY R joint	400,000	$53,304,000	100.0%	Defined

EVENTIDE ASSET MANAGEMENT, LLC

$52,631,969

0.59%

394,957

ExodusPoint Capital Management, LP

$49,439,460

0.56%

371,000

DIADEMA PARTNERS LP

$46,534,392

0.52%

349,200

Ikarian Capital, LLC

$45,454,986

0.51%

341,100

MPM BIOIMPACT LLC

$44,821,601

0.51%

336,347

Affinity Asset Advisors, LLC

$43,975,800

0.50%

330,000

Ikarian Capital, LLC

$43,793,900

0.49%

328,635

Melqart Asset Management (UK) Ltd

$40,944,135

0.46%

307,250

Kite Lake Capital Management (UK) LLP

$40,057,955

0.45%

300,600

PRICE T ROWE ASSOCIATES INC /MD/

$40,026,639

0.45%

300,365

FRANKLIN RESOURCES INC

$39,945,218

0.45%

299,754

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
FRANKLIN ADVISERS INC	299,754	$39,945,218	100.0%	Defined

STEMPOINT CAPITAL LP

$37,800,131

0.43%

283,657

HRT FINANCIAL LP

$36,061,755

0.41%

270,612

Two Seas Capital LP

$35,500,464

0.40%

266,400

PRINCIPAL FINANCIAL GROUP INC

$34,338,170

0.39%

257,678

DIADEMA PARTNERS LP

$33,634,824

0.38%

252,400

Ikarian Capital, LLC

$33,315,000

0.38%

250,000

Two Seas Capital LP

$32,594,063

0.37%

244,590

READYSTATE ASSET MANAGEMENT LP

$32,186,287

0.36%

241,530

MILLENNIUM MANAGEMENT LLC

$31,148,192

0.35%

233,740

ExodusPoint Capital Management, LP

$30,276,672

0.34%

227,200

Woodline Partners LP

$30,245,489

0.34%

226,966

Patient Square Capital LP

$27,518,190

0.31%

206,500

GREAT POINT PARTNERS LLC

$27,226,883

0.31%

204,314

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JAY JEFFREY R joint	204,314	$27,226,883	100.0%	Defined

Western Standard LLC

$26,652,000

0.30%

200,000

ORBIMED ADVISORS LLC

$26,652,000

0.30%

200,000

JENNISON ASSOCIATES LLC

$26,188,788

0.30%

196,524

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Prudential Financial Inc	196,524	$26,188,788	100.0%	Defined

FMR LLC

$25,544,474

0.29%

191,689

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Fidelity Management & Research Co LLC joint	142,420	$18,978,888	74.3%	Defined
FIDELITY MANAGEMENT TRUST CO	49,242	$6,561,988	25.7%	Defined
STRATEGIC ADVISERS LLC	27	$3,598	0.0%	Defined

TUDOR INVESTMENT CORP ET AL

$24,964,262

0.28%

187,335

FINDELL CAPITAL MANAGEMENT LLC

$24,653,100

0.28%

185,000

TUDOR INVESTMENT CORP ET AL

$23,946,822

0.27%

179,700

SILVERARC CAPITAL MANAGEMENT, LLC

$22,599,963

0.25%

169,593

DIADEMA PARTNERS LP

$21,807,199

0.25%

163,644

Focus Partners Wealth

$21,571,329

0.24%

161,874

SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC

$21,321,600

0.24%

160,000

TUDOR INVESTMENT CORP ET AL

$21,041,754

0.24%

157,900

Creek Drive Management Group LLC

$20,988,450

0.24%

157,500

NAN FUNG TRINITY (HK) LTD

$18,933,980

0.21%

142,083

Nantahala Capital Management, LLC

$17,824,724

0.20%

133,759

APEIRON CAPITAL Ltd

$17,403,756

0.20%

130,600

AMERIPRISE FINANCIAL INC

$17,299,279

0.19%

129,816

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Columbia Management Investment Advisers, LLC	129,446	$17,249,973	99.7%	Defined
Ameriprise Financial Services, LLC	266	$35,447	0.2%	Defined
Ameriprise Bank, FSB	104	$13,859	0.1%	Defined

LMR Partners LLP

$17,257,170

0.19%

129,500

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
LMR Partners LLC	35,000	$4,664,100	27.0%	Sole
Wabon Partners, L.P.	94,500	$12,593,070	73.0%	Sole

TORONTO DOMINION BANK

$16,657,500

0.19%

125,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
TD SECURITIES (USA) LLC	125,000	$16,657,500	100.0%	Defined

Ally Bridge Group (NY) LLC

$16,657,500

0.19%

125,000

WELLINGTON MANAGEMENT GROUP LLP

$16,429,491

0.19%

123,289

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Wellington Management Company LLP	122,393	$16,310,091	99.3%	Defined
Wellington Management International Ltd	896	$119,400	0.7%	Defined

DG Capital Management, LLC

$16,293,300

0.18%

122,267

FARALLON CAPITAL MANAGEMENT LLC

$16,257,720

0.18%

122,000

HighVista Strategies LLC

$15,062,511

0.17%

113,031

Seven Fleet Capital Management LP

$14,836,368

0.17%

111,334

Erste Asset Management GmbH

$14,658,600

0.17%

110,000

BOOTHBAY FUND MANAGEMENT, LLC

$14,445,384

0.16%

108,400

Prosight Management, LP

$14,311,324

0.16%

107,394

Verition Fund Management LLC

$14,097,708

0.16%

105,791

TimesSquare Capital Management, LLC

$13,471,519

0.15%

101,092

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GuideStone Capital Management, LLC joint	101,092	$13,471,519	100.0%	Sole

WELLS FARGO & COMPANY/MN

$13,069,740

0.15%

98,077

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO CLEARING SERVICES, LLC	3,758	$500,791	3.8%	Defined
Wells Fargo Securities, LLC	94,319	$12,568,949	96.2%	Defined

ACT CAPITAL MANAGEMENT, LLC

$12,926,220

0.15%

97,000

SEI INVESTMENTS CO

$12,283,373

0.14%

92,176

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SEI INVESTMENTS MANAGEMENT CORP	80,182	$10,685,053	87.0%	Sole
SEI TRUST CO	11,994	$1,598,320	13.0%	Sole

D. E. Shaw & Co., Inc.

$12,040,973

0.14%

90,357

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
D. E. SHAW & CO, L.P.	90,357	$12,040,973	100.0%	Defined

Key facts CIK 1956827 CUSIP 00370M103 13F (30d) 8 filings 8 filers Visit website Investor relations