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 		– Sell
-10,268
Closed -$57.8K – 8986
2025
Q4 		$51.5K Buy
+10,268
New +$39.3K ﹤0.01% 5626
2025
Q3 		– Sell
-6,673
Closed -$16.6K – 8986
2025
Q2 		$16K Buy
+6,673
New +$13.4K ﹤0.01% 6935
2025
Q1 		– Sell
-29,433
Closed -$98K – 8444
2024
Q4 		$150K Buy
29,433
+3,603
+14% +$22.2K ﹤0.01% 4786
2024
Q3 		$152K Buy
+25,830
New +$153K ﹤0.01% 4794
2024
Q2 		– Sell
-63,295
Closed -$327K – 8705
2024
Q1 		$453K Buy
63,295
+56,542
+837% +$294K ﹤0.01% 3952
2023
Q4 		$30K Buy
6,753
+5,801
+609% +$14.4K ﹤0.01% 6557
2023
Q3 		$2K Sell
952
-49,068
-98% -$148K ﹤0.01% 8031
2023
Q2 		$176K Buy
50,020
+40,002
+399% +$175K ﹤0.01% 4439
2023
Q1 		$38K Sell
10,018
-34,742
-78% -$191K ﹤0.01% 6225
2022
Q4 		$231K Buy
+44,760
New +$246K ﹤0.01% 4045
2022
Q2 		– Sell
-207
Closed -$632 – 9872
2022
Q1 		$0 Sell
207
-7,188
-97% -$44.2K ﹤0.01% 10301
2021
Q4 		$84K Buy
+7,395
New +$119K ﹤0.01% 6516

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.