Baker Bros. Advisors’s Abivax ABVX Stock Holding History

Baker Bros. Advisors’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 Q2	–	Sell	-875,796	Closed	-$97.5M	–	85
2026 Q1	$97.5M	Hold	875,796	–	–	0.56%	25
2025 Q4	$118M	Hold	875,796	–	–	0.69%	22
2025 Q3	$74.4M	Buy	+875,796	New	+$53.7M	0.54%	24

Other funds holding ABVX

TCM

TCG Crossover Management Palo Alto, California $4.16B AUM 983.43% 1-Year Est. Return

Helikon Investments London, United Kingdom $3.35B AUM 55.08% 1-Year Est. Return

DGM

Darwin Global Management St. Helier, Jersey $3.76B AUM 342.13% 1-Year Est. Return

VPC

Vestal Point Capital New York $4.28B AUM 239% 1-Year Est. Return

Jupiter Topco New York $245B AUM

UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

ACM

ADAR1 Capital Management Austin, Texas $2.19B AUM 374.99% 1-Year Est. Return

Caligan Partners New York $2.13B AUM 758.65% 1-Year Est. Return

Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Baker Bros. Advisors's ABVX Position: Q2 2026 in Review

Baker Bros. Advisors sold out of Abivax (ABVX) in Q2 2026, closing a stake of 875,796 shares — an estimated $97.5M sold.

Baker Bros. Advisors first reported a position in ABVX in Q3 2025 and held it in 3 quarters. The position peaked at $118M in Q4 2025. 302 funds tracked by Wall St. Rank hold ABVX as of Q2 2026.

Baker Bros. Advisors reported no remaining Abivax position as of Q2 2026 after selling out during the quarter.
Baker Bros. Advisors sold 875,796 Abivax shares in Q2 2026, an estimated $97.5M.
Baker Bros. Advisors first reported a position in Abivax in Q3 2025 and held it in 3 quarters.
Baker Bros. Advisors's Abivax position peaked at $118M in Q4 2025.
302 funds tracked by Wall St. Rank held Abivax as of Q2 2026.

Based on Baker Bros. Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.