Simplex Trading
ANNX icon

Simplex Trading’s Annexon ANNX Stock Holding History

Simplex Trading’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 		$143K Buy
25,900
+5,000
+24% +$28.1K ﹤0.01% 4678
2025
Q4 		$105K Buy
20,900
+20,500
+5,125% +$78.4K ﹤0.01% 4946
2025
Q3 		$1K Sell
400
-100
-20% -$248 ﹤0.01% 8761
2025
Q2 		$1K Sell
500
-300
-38% -$601 ﹤0.01% 8252
2025
Q1 		$1K Sell
800
-14,900
-95% -$49.6K ﹤0.01% 8135
2024
Q4 		$80K Sell
15,700
-35,700
-69% -$220K ﹤0.01% 5390
2024
Q3 		$304K Sell
51,400
-477,200
-90% -$2.83M ﹤0.01% 4113
2024
Q2 		$2.59M Buy
528,600
+480,600
+1,001% +$2.49M ﹤0.01% 1969
2024
Q1 		$344K Buy
48,000
+43,800
+1,043% +$227K ﹤0.01% 4235
2023
Q4 		$19K Buy
+4,200
New +$10.4K ﹤0.01% 6952
2023
Q3 		– Sell
-61,400
Closed -$216K – 8580
2023
Q2 		$216K Buy
61,400
+36,400
+146% +$159K ﹤0.01% 4214
2023
Q1 		$96K Sell
25,000
-150,900
-86% -$830K ﹤0.01% 5191
2022
Q4 		$909K Hold
175,900
– – ﹤0.01% 2555
2022
Q3 		$1.09M Sell
175,900
-11,600
-6% -$62.7K ﹤0.01% 2556
2022
Q2 		$706K Buy
+187,500
New +$573K ﹤0.01% 3025
2022
Q1 		– Sell
-100
Closed -$1K – 10302
2021
Q4 		$1K Buy
+100
New +$1.62K ﹤0.01% 10130

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

Simplex Trading's ANNX Position: Q1 2026 in Review

Simplex Trading sold out of Annexon (ANNX) in Q1 2026, closing a stake of 10,268 shares — an estimated $57.8K sold.

Simplex Trading first reported a position in ANNX in Q4 2021 and held it in 12 quarters. The position peaked at $453K in Q1 2024. 217 funds tracked by Wall St. Rank hold ANNX as of Q1 2026.

  • Simplex Trading reported no remaining Annexon position as of Q1 2026 after selling out during the quarter.
  • Simplex Trading sold 10,268 Annexon shares in Q1 2026, an estimated $57.8K.
  • Simplex Trading first reported a position in Annexon in Q4 2021 and held it in 12 quarters.
  • Simplex Trading's Annexon position peaked at $453K in Q1 2024.
  • 217 funds tracked by Wall St. Rank held Annexon as of Q1 2026.

Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.