Jim Simons
ANNX icon

Jim Simons’s Annexon ANNX Stock Holding History

Jim Simons’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 		$2.62M Sell
459,000
-85,300
-16% -$472K ﹤0.01% 1820
2026
Q1 		$3.02M Sell
544,300
-258,300
-32% -$1.45M ﹤0.01% 1659
2025
Q4 		$4.03M Buy
802,600
+49,021
+7% +$187K 0.01% 1427
2025
Q3 		$2.3M Sell
753,579
-24,321
-3% -$60.4K ﹤0.01% 1978
2025
Q2 		$1.87M Sell
777,900
-384,537
-33% -$771K ﹤0.01% 2152
2025
Q1 		$2.24M Buy
1,162,437
+668,737
+135% +$2.23M ﹤0.01% 1928
2024
Q4 		$2.53M Buy
493,700
+92,300
+23% +$568K ﹤0.01% 1899
2024
Q3 		$2.38M Sell
401,400
-182,800
-31% -$1.08M ﹤0.01% 1900
2024
Q2 		$2.86M Sell
584,200
-87,000
-13% -$450K ﹤0.01% 1649
2024
Q1 		$4.81M Buy
671,200
+187,000
+39% +$971K 0.01% 1428
2023
Q4 		$2.2M Sell
484,200
-77,110
-14% -$191K ﹤0.01% 1894
2023
Q3 		$1.32M Buy
561,310
+139,110
+33% +$421K ﹤0.01% 2110
2023
Q2 		$1.49M Buy
422,200
+65,100
+18% +$285K ﹤0.01% 2197
2023
Q1 		$1.38M Buy
357,100
+47,000
+15% +$259K ﹤0.01% 2256
2022
Q4 		$1.6M Sell
310,100
-20,100
-6% -$110K ﹤0.01% 2215
2022
Q3 		$2.04M Sell
330,200
-29,700
-8% -$161K ﹤0.01% 1990
2022
Q2 		$1.36M Sell
359,900
-236,629
-40% -$723K ﹤0.01% 2494
2022
Q1 		$1.63M Buy
596,529
+495,629
+491% +$3.05M ﹤0.01% 2384
2021
Q4 		$1.16M Buy
+100,900
New +$1.63M ﹤0.01% 2540

Other funds holding ANNX

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
SL
Siren LLC Greenwich, Connecticut $4.94B AUM 244.43% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
N
Nuveen Charlotte, North Carolina $419B AUM 43.02% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $552B AUM 44.19% 1-Year Est. Return
Northern Trust
Northern Trust Chicago, Illinois $860B AUM 41.15% 1-Year Est. Return

Jim Simons's ANNX Position: Q2 2026 in Review

Jim Simons reduced its Annexon (ANNX) stake by 16% in Q2 2026, selling an estimated $472K and leaving 459,000 shares worth $2.62M. The position accounts for ﹤0.01% of the portfolio, ranked #1820.

Jim Simons first reported a position in ANNX in Q4 2021 and has held it in 19 quarters since. The position peaked at $4.81M in Q1 2024. 126 funds tracked by Wall St. Rank hold ANNX as of Q2 2026.

  • Jim Simons held 459,000 shares of Annexon worth $2.62M as of Q2 2026.
  • Jim Simons sold 85,300 Annexon shares in Q2 2026, an estimated $472K.
  • Annexon made up ﹤0.01% of Jim Simons's portfolio in Q2 2026, its #1820 holding.
  • Jim Simons first reported a position in Annexon in Q4 2021 and has held it in 19 quarters since.
  • Jim Simons's Annexon position peaked at $4.81M in Q1 2024.
  • 126 funds tracked by Wall St. Rank held Annexon as of Q2 2026.

Based on Renaissance Technologies's 13F filing for Q2 2026, filed 13 Aug 2026.