Jane Street
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Jane Street’s Arm ARM Stock Holding History

Jane Street’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 		$547M Sell
3,613,600
-2,085,900
-37% -$253M 0.07% 180
2025
Q4 		$623M Buy
5,699,500
+183,800
+3% +$26.7M 0.09% 142
2025
Q3 		$780M Buy
5,515,700
+494,100
+10% +$72M 0.12% 108
2025
Q2 		$812M Buy
5,021,600
+1,276,100
+34% +$158M 0.16% 76
2025
Q1 		$400M Buy
3,745,500
+214,500
+6% +$29.9M 0.1% 123
2024
Q4 		$436M Sell
3,531,000
-178,900
-5% -$25.2M 0.09% 119
2024
Q3 		$531M Sell
3,709,900
-127,800
-3% -$18.2M 0.12% 91
2024
Q2 		$628M Sell
3,837,700
-2,452,500
-39% -$305M 0.14% 73
2024
Q1 		$786M Buy
6,290,200
+5,399,800
+606% +$572M 0.16% 63
2023
Q4 		$66.9M Buy
890,400
+596,400
+203% +$34.9M 0.02% 551
2023
Q3 		$15.7M Buy
+294,000
New +$16.3M 0.01% 1316

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

Jane Street's ARM Position: Q1 2026 in Review

Jane Street increased its Arm (ARM) stake by 406% in Q1 2026, buying an estimated $30.7M and bringing the position to 315,527 shares worth $47.7M. The position accounts for 0.01% of the portfolio, ranked #1088.

Jane Street first reported a position in ARM in Q3 2023 and has held it in 11 quarters since. The position peaked at $153M in Q1 2024. 742 funds tracked by Wall St. Rank hold ARM as of Q1 2026.

  • Jane Street held 315,527 shares of Arm worth $47.7M as of Q1 2026.
  • Jane Street bought 253,166 Arm shares in Q1 2026, an estimated $30.7M.
  • Arm made up 0.01% of Jane Street's portfolio in Q1 2026, its #1088 holding.
  • Jane Street first reported a position in Arm in Q3 2023 and has held it in 11 quarters since.
  • Jane Street's Arm position peaked at $153M in Q1 2024.
  • 742 funds tracked by Wall St. Rank held Arm as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.