Acadian Asset Management
ANNX icon

Acadian Asset Management’s Annexon ANNX Stock Holding History

Acadian 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 		$4.2M Sell
758,232
-103,013
-12% -$580K 0.01% 758
2025
Q4 		$4.32M Buy
861,245
+328,882
+62% +$1.26M 0.01% 695
2025
Q3 		$1.62M Buy
532,363
+63,154
+13% +$157K ﹤0.01% 942
2025
Q2 		$1.13M Buy
469,209
+265,219
+130% +$532K ﹤0.01% 951
2025
Q1 		$393K Buy
203,990
+48,345
+31% +$161K ﹤0.01% 1122
2024
Q4 		$798K Sell
155,645
-789,351
-84% -$4.86M ﹤0.01% 968
2024
Q3 		$5.59M Buy
944,996
+32,845
+4% +$195K 0.02% 478
2024
Q2 		$4.47M Sell
912,151
-45,842
-5% -$237K 0.01% 532
2024
Q1 		$6.87M Buy
957,993
+83,969
+10% +$436K 0.02% 390
2023
Q4 		$3.97M Buy
874,024
+61,800
+8% +$153K 0.02% 516
2023
Q3 		$1.92M Sell
812,224
-8,342
-1% -$25.2K 0.01% 703
2023
Q2 		$2.89M Buy
820,566
+15,287
+2% +$66.8K 0.01% 604
2023
Q1 		$3.1M Buy
805,279
+408,467
+103% +$2.25M 0.01% 594
2022
Q4 		$2.05M Sell
396,812
-6,385
-2% -$35.1K 0.01% 670
2022
Q3 		$2.49M Buy
403,197
+2,657
+0.7% +$14.4K 0.01% 571
2022
Q2 		$1.51M Buy
400,540
+257,647
+180% +$787K 0.01% 708
2022
Q1 		$388K Buy
+142,893
New +$879K ﹤0.01% 1064

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

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

Acadian Asset Management reduced its Annexon (ANNX) stake by 12% in Q1 2026, selling an estimated $580K and leaving 758,232 shares worth $4.2M. The position accounts for 0.01% of the portfolio, ranked #758.

Acadian Asset Management first reported a position in ANNX in Q1 2022 and has held it in 17 quarters since. The position peaked at $6.87M in Q1 2024. 217 funds tracked by Wall St. Rank hold ANNX as of Q1 2026.

  • Acadian Asset Management held 758,232 shares of Annexon worth $4.2M as of Q1 2026.
  • Acadian Asset Management sold 103,013 Annexon shares in Q1 2026, an estimated $580K.
  • Annexon made up 0.01% of Acadian Asset Management's portfolio in Q1 2026, its #758 holding.
  • Acadian Asset Management first reported a position in Annexon in Q1 2022 and has held it in 17 quarters since.
  • Acadian Asset Management's Annexon position peaked at $6.87M in Q1 2024.
  • 217 funds tracked by Wall St. Rank held Annexon as of Q1 2026.

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