Balyasny Asset Management
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Balyasny Asset Management’s Annexon ANNX Stock Holding History

Balyasny Asset Management’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 		$21.5M Buy
3,886,909
+587,653
+18% +$3.31M 0.03% 662
2025
Q4 		$16.6M Buy
3,299,256
+2,001,996
+154% +$7.65M 0.02% 808
2025
Q3 		$3.96M Buy
+1,297,260
New +$3.22M 0.01% 1482
2025
Q2 		– Sell
-96,752
Closed -$187K – 2778
2025
Q1 		$187K Buy
+96,752
New +$322K ﹤0.01% 2602
2024
Q1 		– Sell
-10,107
Closed -$45.9K – 2587
2023
Q4 		$45.9K Buy
+10,107
New +$25K ﹤0.01% 2411
2023
Q1 		– Sell
-21,605
Closed -$112K – 2617
2022
Q4 		$112K Buy
+21,605
New +$119K ﹤0.01% 2233

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

Balyasny Asset Management's ANNX Position: Q1 2026 in Review

Balyasny Asset Management increased its Annexon (ANNX) stake by 18% in Q1 2026, buying an estimated $3.31M and bringing the position to 3,886,909 shares worth $21.5M. The position accounts for 0.03% of the portfolio, ranked #662.

Balyasny Asset Management first reported a position in ANNX in Q4 2022 and has held it in 6 quarters since. 217 funds tracked by Wall St. Rank hold ANNX as of Q1 2026.

  • Balyasny Asset Management held 3,886,909 shares of Annexon worth $21.5M as of Q1 2026.
  • Balyasny Asset Management bought 587,653 Annexon shares in Q1 2026, an estimated $3.31M.
  • Annexon made up 0.03% of Balyasny Asset Management's portfolio in Q1 2026, its #662 holding.
  • Balyasny Asset Management first reported a position in Annexon in Q4 2022 and has held it in 6 quarters since.
  • 217 funds tracked by Wall St. Rank held Annexon as of Q1 2026.

Based on Balyasny Asset Management's 13F filing for Q1 2026, filed 15 May 2026.