Vault-13

ABIVAX SA ABVX

SPONSORED ADS · ADR · CUSIP 00370M103 · ISIN US00370M1036

39 institutional holders +2 vs Q1 2024
29,078,51729.1m shares reported held*
$384.6mreported value*
4 new 13 added 13 reduced 2 sold out net bought ≈ $59.8m (+4.5m shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($79.7k this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $13.23.

Trends to Q2 2024

Institutional holders

Managers reporting a position, each quarter

02040Q4 23: 31Q1 24: 37Q2 24: 3939Q4 23Q1 24Q2 24
Numbers
QuarterHolders
Q4 202331
Q1 202437
Q2 202439

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
40040Q1 24: 21 bought or addedQ1 24: 13 cut or sold outQ1 24Q2 24: 17 bought or addedQ2 24: 15 cut or sold outQ2 24
Numbers
QuarterBought or addedCut or sold out
Q1 20242113
Q2 20241715

Biggest buyers

TCG Crossover Management, LLC Added +4,956,596+5.0m
Nantahala Capital Management, LLC Added +961,234+961.2k
SILVERARC CAPITAL MANAGEMENT, LLC Added +380,800+380.8k
JANUS HENDERSON GROUP PLC Added +323,675+323.7k
Atika Capital Management LLC Added +120,644+120.6k
Aberdeen Group plc New +118,206+118.2k
ADAGE CAPITAL PARTNERS GP, L.L.C. Added +100,000+100.0k
BANTAMAC CAPITAL, LLC New +34,750+34.8k
Woodline Partners LP New +31,284+31.3k
ADAR1 Capital Management, LLC Added +12,000+12.0k

Biggest sellers

MORGAN STANLEY Reduced -1,216,812-1.2m
Commodore Capital LP Reduced -610,893-610.9k
Blackstone Inc. Reduced -255,573-255.6k
Deep Track Capital, LP Reduced -117,675-117.7k
CITADEL ADVISORS LLC Reduced -96,750-96.8k
Polar Asset Management Partners Inc. Reduced -64,649-64.6k
CAPSTONE INVESTMENT ADVISORS, LLC Sold out -62,966-63.0k
MILLENNIUM MANAGEMENT LLC Reduced -60,207-60.2k
GREAT POINT PARTNERS LLC Reduced -16,295-16.3k
Walleye Capital LLC Reduced -10,434-10.4k

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
TCG Crossover GP I, LLC 13G · passive investor -2.1 pts · filed 2026-08-14 7.0% -2.1 pts 6.0m 2026-08-14
Invus Global Management, LLC 13G · passive investor +1.0 pts · filed 2026-08-13 6.0% +1.0 pts 4.8m 2026-08-13

Fell to 5% or below in the last year: Sofinnova Crossover I (4.3%, 2026-07-06), Venrock Healthcare Capital Partners III, L.P. (0.8%, 2025-11-14)

Insider purchases and sales in Q2 2024

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

None reported in Q2 2024.

Holders, Q2 2024

#ManagerLocationShares Value% of their portfolioChangeShares change
1 TCG Crossover Management, LLC 8.34% of their portfolio PALO ALTO, CA 6,056,5966.1m $80.1m $80.1m 8.34% Added +5.0m +4,956,596
2 Deep Track Capital, LP 1.65% of their portfolio GREENWICH, CT 4,179,7634.2m $55.3m $55.3m 1.65% Reduced -117.7k -117,675
3 GREAT POINT PARTNERS LLC 6.26% of their portfolio Greenwich, CT 2,472,1882.5m $32.7m $32.7m 6.26% Reduced -16.3k -16,295
4 Cormorant Asset Management, LP 1.64% of their portfolio BOSTON, MA 2,130,0002.1m $28.2m $28.2m 1.64% Unchanged
5 Nantahala Capital Management, LLC 1.32% of their portfolio NEW CANAAN, CT 1,971,2682.0m $26.1m $26.1m 1.32% Added +961.2k +961,234
6 Blackstone Inc. 0.11% of their portfolio NEW YORK, NY 1,862,0371.9m $24.6m $24.6m 0.11% Reduced -255.6k -255,573
7 FRANKLIN RESOURCES INC 0.01% of their portfolio San Mateo, CA 1,395,0521.4m $18.4m $18.4m 0.01% Unchanged
8 Venrock Adviser, LLC 1.13% of their portfolio NEW YORK, NY 1,345,7801.3m $17.8m $17.8m 1.13% Unchanged
9 Commodore Capital LP 1.16% of their portfolio NEW YORK, NY 1,284,1101.3m $17.0m $17.0m 1.16% Reduced -610.9k -610,893
10 JANUS HENDERSON GROUP PLC 0.01% of their portfolio LONDON, X0 1,175,5141.2m $15.7m $15.7m 0.01% Added +323.7k +323,675
11 SAMSARA BIOCAPITAL, LLC 2.35% of their portfolio PALO ALTO, CA 850,000850.0k $11.2m $11.2m 2.35% Unchanged
12 Saturn V Capital Management LP 3.14% of their portfolio AUSTIN, TX 627,760627.8k $8.3m $8.3m 3.14% Added +4.8k +4,790
13 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 563,553563.6k $7.5m $7.5m 0.00% Reduced -1.2m -1,216,812
14 ADAGE CAPITAL PARTNERS GP, L.L.C. 0.01% of their portfolio Boston, MA 525,000525.0k $6.9m $6.9m 0.01% Added +100.0k +100,000
15 SILVERARC CAPITAL MANAGEMENT, LLC 1.49% of their portfolio BOSTON, MA 455,800455.8k $6.0m $6.0m 1.49% Added +380.8k +380,800
16 CITADEL ADVISORS LLC 0.01% of their portfolio MIAMI, FL 454,760454.8k $6.0m $6.0m 0.01% Reduced -96.8k -96,750
17 Point72 Asset Management, L.P. 0.02% of their portfolio STAMFORD, CT 423,600423.6k $5.6m $5.6m 0.02% Added +600 +600
18 Rosalind Advisors, Inc. 3.96% of their portfolio TORONTO, A6 378,416378.4k $5.0m $5.0m 3.96% Unchanged
19 Walleye Capital LLC 0.02% of their portfolio NEW YORK, NY 176,610176.6k $2.3m $2.3m 0.02% Reduced -10.4k -10,434
20 Atika Capital Management LLC 0.26% of their portfolio NEW YORK, NY 170,637170.6k $2.3m $2.3m 0.26% Added +120.6k +120,644
21 KENNEDY CAPITAL MANAGEMENT LLC 0.04% of their portfolio ST LOUIS, MO 132,031132.0k $1.7m $1.7m 0.04% Added +11.9k +11,863
22 Aberdeen Group plc 0.00% of their portfolio EDINBURGH, X0 118,206118.2k $1.6m $1.6m 0.00% New
23 MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio NEW YORK, NY 77,60277.6k $1.0m $1.0m 0.00% Reduced -60.2k -60,207
24 Polar Asset Management Partners Inc. 0.02% of their portfolio TORONTO, A6 53,23953.2k $703.8k $703.8k 0.02% Reduced -64.6k -64,649
25 HighVista Strategies LLC 0.24% of their portfolio BOSTON, MA 49,50949.5k $654.5k $654.5k 0.24% Reduced -8.3k -8,253
26 BANTAMAC CAPITAL, LLC 0.28% of their portfolio CHICAGO, IL 34,75034.8k $459.4k $459.4k 0.28% New
27 Woodline Partners LP 0.00% of their portfolio San Francisco, CA 31,28431.3k $413.6k $413.6k 0.00% New
28 ADAR1 Capital Management, LLC 0.07% of their portfolio AUSTIN, TX 27,00027.0k $356.9k $356.9k 0.07% Added +12.0k +12,000
29 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 14,38914.4k $190.2k $190.2k 0.00% Unchanged
30 CAXTON CORP 0.93% of their portfolio Princeton, NJ 13,90013.9k $183.8k $183.8k 0.93% Reduced -1.9k -1,908
31 HighTower Advisors, LLC 0.00% of their portfolio CHICAGO, IL 10,00010.0k $132.0k $132.0k 0.00% Unchanged
32 Sandia Investment Management LP 0.12% of their portfolio BOSTON, MA 7,5007.5k $99.2k $99.2k 0.12% Reduced -2.9k -2,871
33 BNP PARIBAS FINANCIAL MARKETS 0.00% of their portfolio PARIS, I0 7,1447.1k $94.4k $94.4k 0.00% Added +1.5k +1,500
34 Cubist Systematic Strategies, LLC 0.00% of their portfolio STAMFORD, CT 6,0276.0k $79.7k $79.7k 0.00% Reduced -8.0k -7,995
35 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 2,8192.8k $37.3k $37.3k 0.00% Added +547 +547
36 RHUMBLINE ADVISERS 0.00% of their portfolio BOSTON, MA 594594 $7.9k $7.9k 0.00% Added +395 +395
37 Financial Management Professionals, Inc. 0.00% of their portfolio AUSTIN, TX 100100 $1.0k $1.0k 0.00% Unchanged
38 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 66 $79 $79 0.00% New
39 CONCOURSE FINANCIAL GROUP SECURITIES, INC. 0.00% of their portfolio BIRMINGHAM, AL 00 $0 $0 0.00% Unchanged