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Ikarian Capital’s Annexon ANNX Stock Holding History

Ikarian Capital’s Portfolio ANNX Stock Details ANNX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$3.21M Buy
580,244
+350,000
+152% +$1.97M 0.26% 80
2025
Q4 		$1.16M Buy
+230,244
New +$880K 0.09% 124
2024
Q3 		– Sell
-380,000
Closed -$1.86M – 149
2024
Q2 		$1.86M Sell
380,000
-1,025,000
-73% -$5.3M 0.32% 58
2024
Q1 		$10.1M Sell
1,405,000
-1,245,000
-47% -$6.46M 1.1% 29
2023
Q4 		$12M Buy
+2,650,000
New +$6.56M 1.13% 30

Other funds holding ANNX

RG
Redmile Group San Francisco, California $1.51B AUM 164.17% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
BI
BVF Inc San Francisco, California $3.14B AUM 249.53% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
BCLSI
Bain Capital Life Sciences Investors Boston, Massachusetts $1.11B AUM 171.34% 1-Year Est. Return
BG
Bellevue Group Kuesnacht, Switzerland $4.2B AUM 54.85% 1-Year Est. Return
MCO
MAK Capital One New York $679M AUM 29.02% 1-Year Est. Return
Adage Capital Partners
Adage Capital Partners Boston, Massachusetts $64.8B AUM 42.7% 1-Year Est. Return

Ikarian Capital's ANNX Position: Q1 2026 in Review

Ikarian Capital increased its Annexon (ANNX) stake by 152% in Q1 2026, buying an estimated $1.97M and bringing the position to 580,244 shares worth $3.21M. The position accounts for 0.26% of the portfolio, ranked #80.

Ikarian Capital first reported a position in ANNX in Q4 2023 and has held it in 5 quarters since. The position peaked at $12M in Q4 2023. 217 funds tracked by Wall St. Rank hold ANNX as of Q1 2026.

  • Ikarian Capital held 580,244 shares of Annexon worth $3.21M as of Q1 2026.
  • Ikarian Capital bought 350,000 Annexon shares in Q1 2026, an estimated $1.97M.
  • Annexon made up 0.26% of Ikarian Capital's portfolio in Q1 2026, its #80 holding.
  • Ikarian Capital first reported a position in Annexon in Q4 2023 and has held it in 5 quarters since.
  • Ikarian Capital's Annexon position peaked at $12M in Q4 2023.
  • 217 funds tracked by Wall St. Rank held Annexon as of Q1 2026.

Based on Ikarian Capital's 13F filing for Q1 2026, filed 15 May 2026.