MPM BioImpact’s Abivax ABVX Stock Holding History

MPM BioImpact’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	$44.8M	Buy	336,347 +229,079	+214%	+$25.9M	2.73%	14
2026 Q1	$11.9M	Buy	107,268 +50,952	+90%	+$6.03M	0.92%	38
2025 Q4	$7.59M	Buy	+56,316	New	+$6.14M	0.87%	33

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

MPM BioImpact's ABVX Position: Q2 2026 in Review

MPM BioImpact increased its Abivax (ABVX) stake by 214% in Q2 2026, buying an estimated $25.9M and bringing the position to 336,347 shares worth $44.8M. The position accounts for 2.73% of the portfolio, ranked #14.

MPM BioImpact first reported a position in ABVX in Q4 2025 and has held it in 3 quarters since. 304 funds tracked by Wall St. Rank hold ABVX as of Q2 2026.

MPM BioImpact held 336,347 shares of Abivax worth $44.8M as of Q2 2026.
MPM BioImpact bought 229,079 Abivax shares in Q2 2026, an estimated $25.9M.
Abivax made up 2.73% of MPM BioImpact's portfolio in Q2 2026, its #14 holding.
MPM BioImpact first reported a position in Abivax in Q4 2025 and has held it in 3 quarters since.
304 funds tracked by Wall St. Rank held Abivax as of Q2 2026.

Based on MPM BioImpact's 13F filing for Q2 2026, filed 14 Aug 2026.