Hudson Bay Capital Management
ABVX

Hudson Bay Capital Management’s Abivax ABVX Stock Holding History

Hudson Bay 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 		$15.5M Sell
139,379
-68,840
-33% -$8.15M 0.05% 228
2025
Q4 		$28.1M Buy
208,219
+117,157
+129% +$12.8M 0.09% 188
2025
Q3 		$7.73M Buy
+91,062
New +$5.58M 0.03% 421

Other funds holding ABVX

TCM
TCG Crossover Management Palo Alto, California $3.5B AUM 1,165.83% 1-Year Est. Return
UBS Group
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
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
CP
Caligan Partners New York $1.5B AUM 518.95% 1-Year Est. Return
ACM
ADAR1 Capital Management Austin, Texas $1.7B AUM 340.85% 1-Year Est. Return
Westfield Capital Management
Westfield Capital Management Boston, Massachusetts $23.8B AUM 49.45% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
HI
Helikon Investments London, United Kingdom $2.65B AUM 79.03% 1-Year Est. Return

Hudson Bay Capital Management's ABVX Position: Q1 2026 in Review

Hudson Bay Capital Management reduced its Abivax (ABVX) stake by 33% in Q1 2026, selling an estimated $8.15M and leaving 139,379 shares worth $15.5M. The position accounts for 0.05% of the portfolio, ranked #228.

Hudson Bay Capital Management first reported a position in ABVX in Q3 2025 and has held it in 3 quarters since. The position peaked at $28.1M in Q4 2025. 254 funds tracked by Wall St. Rank hold ABVX as of Q1 2026.

  • Hudson Bay Capital Management held 139,379 shares of Abivax worth $15.5M as of Q1 2026.
  • Hudson Bay Capital Management sold 68,840 Abivax shares in Q1 2026, an estimated $8.15M.
  • Abivax made up 0.05% of Hudson Bay Capital Management's portfolio in Q1 2026, its #228 holding.
  • Hudson Bay Capital Management first reported a position in Abivax in Q3 2025 and has held it in 3 quarters since.
  • Hudson Bay Capital Management's Abivax position peaked at $28.1M in Q4 2025.
  • 254 funds tracked by Wall St. Rank held Abivax as of Q1 2026.

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