Citadel Advisors
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Citadel Advisors’s Annexon ANNX Stock Holding History

Citadel Advisors’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
Q2 		$3.41M Sell
596,582
-3,553
-0.6% -$19.6K ﹤0.01% 5437
2026
Q1 		$3.32M Buy
600,135
+324,841
+118% +$1.83M ﹤0.01% 5062
2025
Q4 		$1.38M Buy
275,294
+107,794
+64% +$412K ﹤0.01% 6696
2025
Q3 		$511K Buy
167,500
+154,233
+1,163% +$383K ﹤0.01% 9076
2025
Q2 		$31.8K Buy
13,267
+812
+7% +$1.63K ﹤0.01% 11964
2025
Q1 		$24K Sell
12,455
-12,643
-50% -$42.1K ﹤0.01% 13014
2024
Q4 		$129K Buy
25,098
+19,460
+345% +$120K ﹤0.01% 11099
2024
Q3 		$33.4K Buy
+5,638
New +$33.4K ﹤0.01% 12331
2024
Q2 		– Sell
-258,675
Closed -$1.34M – 14178
2024
Q1 		$1.85M Sell
258,675
-799,012
-76% -$4.15M ﹤0.01% 5678
2023
Q4 		$4.8M Buy
1,057,687
+372,725
+54% +$922K ﹤0.01% 3855
2023
Q3 		$1.62M Sell
684,962
-47,678
-7% -$144K ﹤0.01% 5610
2023
Q2 		$2.58M Sell
732,640
-1,680,477
-70% -$7.35M ﹤0.01% 4715
2023
Q1 		$9.29M Buy
2,413,117
+546,334
+29% +$3.01M ﹤0.01% 2908
2022
Q4 		$9.65M Buy
1,866,783
+460,678
+33% +$2.53M ﹤0.01% 2893
2022
Q3 		$8.69M Sell
1,406,105
-77,558
-5% -$419K ﹤0.01% 2974
2022
Q2 		$5.59M Sell
1,483,663
-257,307
-15% -$786K ﹤0.01% 3585
2022
Q1 		$4.75M Buy
1,740,970
+263,348
+18% +$1.62M ﹤0.01% 4268
2021
Q4 		$17M Sell
1,477,622
-385,001
-21% -$6.22M ﹤0.01% 2227
2021
Q3 		$34.7M Sell
1,862,623
-132,780
-7% -$2.69M 0.01% 1442
2021
Q2 		$44.9M Sell
1,995,403
-98,022
-5% -$2.17M 0.01% 1224
2021
Q1 		$58.3M Sell
2,093,425
-42,690
-2% -$1.17M 0.01% 931
2020
Q4 		$53.5M Buy
2,136,115
+35,795
+2% +$921K 0.01% 907
2020
Q3 		$63.5M Buy
+2,100,320
New +$49.3M 0.02% 703

Other funds holding ANNX

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
RG
Redmile Group San Francisco, California $1.49B AUM 208.7% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
BI
BVF Inc San Francisco, California $3.91B AUM 304.52% 1-Year Est. Return
WP
Woodline Partners San Francisco, California $32.4B AUM 58.5% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
MCO
MAK Capital One New York $714M AUM 68.07% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
SL
Siren LLC Greenwich, Connecticut $4.94B AUM 244.43% 1-Year Est. Return

Citadel Advisors's ANNX Position: Q2 2026 in Review

Citadel Advisors reduced its Annexon (ANNX) stake by 0.59% in Q2 2026, selling an estimated $19.6K and leaving 596,582 shares worth $3.41M. The position accounts for ﹤0.01% of the portfolio, ranked #5437.

Citadel Advisors first reported a position in ANNX in Q3 2020 and has held it in 23 quarters since. The position peaked at $63.5M in Q3 2020. 216 funds tracked by Wall St. Rank hold ANNX as of Q2 2026.

  • Citadel Advisors held 596,582 shares of Annexon worth $3.41M as of Q2 2026.
  • Citadel Advisors sold 3,553 Annexon shares in Q2 2026, an estimated $19.6K.
  • Annexon made up ﹤0.01% of Citadel Advisors's portfolio in Q2 2026, its #5437 holding.
  • Citadel Advisors first reported a position in Annexon in Q3 2020 and has held it in 23 quarters since.
  • Citadel Advisors's Annexon position peaked at $63.5M in Q3 2020.
  • 216 funds tracked by Wall St. Rank held Annexon as of Q2 2026.

Based on Citadel Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.