Abivax S.A. - Ordinary Shares, par value Euro 0.01 per share (ABVX)

Historical Holders from Q4 2023 to Q4 2025

Symbol
ABVX on Nasdaq
Type / Class
Equity / Ordinary Shares, par value Euro 0.01 per share
Shares outstanding
78,149,407
All holders as of 30 Sep 2025
Q3 2025
Total 13F shares, excl. options
51,964,814
Holdings value
$4,408,157,076
% of all portfolios
0.03%
Number of holders
165
Number of buys
145
Number of sells
24
Average buys %
+0.01%
Average sells %
-0.01%
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Abivax S.A. - Ordinary Shares, par value Euro 0.01 per share (ABVX) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Sofinnova Crossover I 9.4% -18% $713,115,682 -$101,880,000 8,399,478 -13% Sofinnova Crossover I SLP 28 Oct 2025
TCG Crossover GP I, LLC 9.1% $603,774,500 7,111,596 Chen Yu 30 Sep 2025
Invus Global Management, LLC 8.5% $32,099,671 5,403,985 Invus Public Equities, L.P. 02 Sep 2022
Deep Track Capital, LP 4.8% $284,118,956 3,480,144 Deep Track Capital, LP 30 Jun 2025
Venrock Healthcare Capital Partners III, L.P. 0.8% $48,964,292 576,729 Venrock Healthcare Capital Partners III, L.P. 30 Sep 2025
As of 30 Sep 2025 Abivax S.A. - Ordinary Shares, par value Euro 0.01 per share (ABVX) has 165 institutional shareholders that have filed 13F forms with the Securities Exchange Commission (SEC). These institutions hold a total of 51,964,814 shares of 78,149,407 outstanding shares and own 66% of the company stock as of 30 Sep 2025.

Top 25 institutional shareholders of Abivax S.A. - Ordinary Shares, par value Euro 0.01 per share (ABVX) own 50% of the company based on 13F filings as of 30 Sep 2025

Filer Ownership Nb Shares Share Change % Portfolio % Holdings Value
TCG Crossover Management, LLC 9.1% 7,111,596 +17% 30% $603,774,500
UBS Group AG 5.7% 4,461,262 +2561% 0.07% $378,761,144
Darwin Global Management, Ltd. 4% 3,164,501 7.3% $263,697,868
Point72 Asset Management, L.P. 3.7% 2,925,352 +1642% 0.54% $248,362,385
Cormorant Asset Management, LP 2.5% 1,950,000 -8.5% 11% $165,555,000
Paradigm Biocapital Advisors LP 2% 1,564,196 3.9% $132,800,240
MORGAN STANLEY 1.9% 1,470,717 +209% 0.01% $124,863,874
Caligan Partners LP 1.9% 1,451,924 -13% 17% $123,268,348
FMR LLC 1.8% 1,430,673 0.01% $121,464,138
ADAR1 Capital Management, LLC 1.7% 1,350,826 -56% 11% $114,685,127
Octagon Capital Advisors LP 1.7% 1,325,000 +4.6% 18% $112,492,500
MILLENNIUM MANAGEMENT LLC 1.4% 1,100,030 -12% 0.07% $93,392,547
Vestal Point Capital, LP 1.3% 1,000,000 3.9% $84,900,000
ADAGE CAPITAL PARTNERS GP, L.L.C. 1.3% 977,629 0.13% $83,000,702
BAKER BROS. ADVISORS LP 1.1% 875,796 0.54% $74,355,080
FARALLON CAPITAL MANAGEMENT LLC 1% 805,000 0.39% $68,344,500
Saturn V Capital Management LP 1% 801,224 +29% 15% $68,023,918
Aberdeen Group plc 1% 787,417 +11% 0.11% $66,851,703
Nationale-Nederlanden Powszechne Towarzystwo Emerytalne S.A. 0.94% 731,523 4.8% $62,106,303
Fairmount Funds Management LLC 0.91% 713,434 5.4% $60,570,547
CITADEL ADVISORS LLC 0.87% 681,785 -46% 0.05% $57,883,546
BOOTHBAY FUND MANAGEMENT, LLC 0.77% 597,931 -31% 1.3% $50,764,342
VR ADVISER, LLC 0.74% 576,729 -57% 2.8% $48,964,292
BVF INC/IL 0.71% 558,031 1.9% $47,376,832
Nantahala Capital Management, LLC 0.71% 557,564 -62% 2.9% $47,337,184

Institutional Holders of Abivax S.A. - Ordinary Shares, par value Euro 0.01 per share (ABVX) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price Investors
2025 Q4 9,380 $1,252,223 +$420,707 $134.85 4
2025 Q3 51,964,814 $4,408,157,076 +$2,126,922,768 $84.90 165
2025 Q2 30,664,346 $234,581,803 -$5,694,976 $7.65 43
2025 Q1 31,761,546 $198,509,815 +$9,164,589 $6.25 46
2024 Q4 29,861,029 $218,582,712 +$7,328,421 $7.32 47
2024 Q3 27,383,884 $312,847,988 -$8,252,199 $11.52 40
2024 Q2 28,098,910 $371,643,391 +$761,392 $13.22 38
2024 Q1 1,145,065 $16,374,000 -$7,778,667 $14.30 3
2023 Q4 21,265,859 $227,821,381 +$223,242,326 $10.70 30