Simplex Trading
ARM icon

Simplex Trading’s Arm ARM Stock Holding History

Simplex Trading’s Portfolio ARM Stock Details ARM Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$118M Sell
779,400
-336,400
-30% -$40.8M 0.08% 98
2025
Q4 		$122M Sell
1,115,800
-202,700
-15% -$29.5M 0.07% 126
2025
Q3 		$162M Buy
1,318,500
+202,100
+18% +$29.4M 0.08% 125
2025
Q2 		$181M Sell
1,116,400
-137,800
-11% -$17.1M 0.1% 101
2025
Q1 		$134M Sell
1,254,200
-11,500
-0.9% -$1.6M 0.09% 106
2024
Q4 		$156M Sell
1,265,700
-88,100
-7% -$12.4M 0.09% 111
2024
Q3 		$194M Buy
1,353,800
+12,700
+0.9% +$1.8M 0.11% 86
2024
Q2 		$219M Buy
1,341,100
+167,600
+14% +$20.8M 0.14% 68
2024
Q1 		$147M Buy
1,173,500
+639,100
+120% +$67.7M 0.08% 108
2023
Q4 		$40.2M Buy
534,400
+224,500
+72% +$13.1M 0.03% 412
2023
Q3 		$16.6M Buy
+309,900
New +$17.1M 0.01% 677

Other funds holding ARM

DZ Bank
DZ Bank Frankfurt Am Main, Germany $113B AUM 36.92% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Capital Research Global Investors
Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return
Schroder Investment Management Group
Schroder Investment Management Group London, United Kingdom $122B AUM 29.27% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
VanEck Associates
VanEck Associates New York $133B AUM 72.99% 1-Year Est. Return
SGA
Sustainable Growth Advisers Stamford, Connecticut $10.6B AUM 2.6% 1-Year Est. Return
AI
Alphabet Inc Mountain View, California $4.02B AUM 215.74% 1-Year Est. Return
ACM
Altimeter Capital Management Boston, Massachusetts $5.7B AUM 36.74% 1-Year Est. Return

Simplex Trading's ARM Position: Q1 2026 in Review

Simplex Trading reduced its Arm (ARM) stake by 79% in Q1 2026, selling an estimated $14.8M and leaving 31,465 shares worth $4.76M. The position accounts for ﹤0.01% of the portfolio, ranked #1146.

Simplex Trading first reported a position in ARM in Q2 2024 and has held it in 7 quarters since. The position peaked at $38.3M in Q3 2024. 742 funds tracked by Wall St. Rank hold ARM as of Q1 2026.

  • Simplex Trading held 31,465 shares of Arm worth $4.76M as of Q1 2026.
  • Simplex Trading sold 121,951 Arm shares in Q1 2026, an estimated $14.8M.
  • Arm made up ﹤0.01% of Simplex Trading's portfolio in Q1 2026, its #1146 holding.
  • Simplex Trading first reported a position in Arm in Q2 2024 and has held it in 7 quarters since.
  • Simplex Trading's Arm position peaked at $38.3M in Q3 2024.
  • 742 funds tracked by Wall St. Rank held Arm as of Q1 2026.

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