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	$755M	Sell	4,989,400 -2,045,100	-29%	-$248M	0.1%	131
2025 Q4	$769M	Buy	7,034,500 +327,200	+5%	+$47.6M	0.12%	118
2025 Q3	$949M	Buy	6,707,300 +2,777,400	+71%	+$405M	0.14%	86
2025 Q2	$636M	Sell	3,929,900 -86,500	-2%	-$10.7M	0.13%	103
2025 Q1	$429M	Sell	4,016,400 -804,100	-17%	-$112M	0.11%	108
2024 Q4	$595M	Buy	4,820,500 +182,400	+4%	+$25.7M	0.13%	86
2024 Q3	$663M	Buy	4,638,100 +1,005,900	+28%	+$143M	0.15%	70
2024 Q2	$594M	Buy	3,632,200 +808,500	+29%	+$101M	0.14%	78
2024 Q1	$353M	Buy	2,823,700 +2,485,300	+734%	+$263M	0.07%	133
2023 Q4	$25.4M	Sell	338,400 -198,400	-37%	-$11.6M	0.01%	1075
2023 Q3	$28.7M	Buy	+536,800	New	+$29.7M	0.01%	835

Other funds holding ARM

DZ Bank Frankfurt Am Main, Germany $113B AUM 36.92% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Capital Research Global Investors Los Angeles, California $645B AUM 30.41% 1-Year Est. Return

Schroder Investment Management Group London, United Kingdom $122B AUM 29.27% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return

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

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.