ADAR1 Capital Management’s Abivax ABVX Stock Holding History

ADAR1 Capital Management’s Portfolio ABVX Stock Details ABVX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$155M	Buy	1,394,019 +76,690	+6%	+$9.08M	9.14%	1
2025 Q4	$178M	Sell	1,317,329 -33,497	-2%	-$3.65M	13.05%	1
2025 Q3	$115M	Sell	1,350,826 -1,720,514	-56%	-$105M	10.77%	1
2025 Q2	$23.5M	Buy	3,071,340 +861,321	+39%	+$5.61M	3.6%	6
2025 Q1	$13.8M	Buy	2,210,019 +696,626	+46%	+$4.71M	2.56%	8
2024 Q4	$11.1M	Buy	1,513,393 +991,781	+190%	+$9.13M	2.21%	10
2024 Q3	$6.01M	Buy	521,612 +494,612	+1,832%	+$5.93M	0.98%	23
2024 Q2	$357K	Buy	27,000 +12,000	+80%	+$172K	0.07%	116
2024 Q1	$215K	Buy	+15,000	New	+$193K	0.05%	116

Other funds holding ABVX

TCM

TCG Crossover Management Palo Alto, California $3.5B AUM 1,165.83% 1-Year Est. Return

UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

DGM

Darwin Global Management St. Helier, Jersey $3.77B AUM 307.72% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

VPC

Vestal Point Capital New York $3.58B AUM 189.12% 1-Year Est. Return

Caligan Partners New York $1.5B AUM 518.95% 1-Year Est. Return

Westfield Capital Management Boston, Massachusetts $23.8B AUM 49.45% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

Helikon Investments London, United Kingdom $2.65B AUM 79.03% 1-Year Est. Return

Eversept Partners New York $1.9B AUM 121.13% 1-Year Est. Return

ADAR1 Capital Management's ABVX Position: Q1 2026 in Review

ADAR1 Capital Management increased its Abivax (ABVX) stake by 5.8% in Q1 2026, buying an estimated $9.08M and bringing the position to 1,394,019 shares worth $155M. The position accounts for 9.14% of the portfolio, ranked #1.

ADAR1 Capital Management first reported a position in ABVX in Q1 2024 and has held it in 9 quarters since. The position peaked at $178M in Q4 2025. 254 funds tracked by Wall St. Rank hold ABVX as of Q1 2026.

ADAR1 Capital Management held 1,394,019 shares of Abivax worth $155M as of Q1 2026.
ADAR1 Capital Management bought 76,690 Abivax shares in Q1 2026, an estimated $9.08M.
Abivax made up 9.14% of ADAR1 Capital Management's portfolio in Q1 2026, its #1 holding.
ADAR1 Capital Management first reported a position in Abivax in Q1 2024 and has held it in 9 quarters since.
ADAR1 Capital Management's Abivax position peaked at $178M in Q4 2025.
254 funds tracked by Wall St. Rank held Abivax as of Q1 2026.

Based on ADAR1 Capital Management's 13F filing for Q1 2026, filed 18 May 2026.