Jane Street’s Silicon Motion SIMO Stock Holding History

Jane Street’s Portfolio SIMO Stock Details SIMO Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$2.9M	Sell	25,800 -3,800	-13%	-$461K	﹤0.01%	4409
2025 Q4	$2.74M	Sell	29,600 -3,900	-12%	-$358K	﹤0.01%	4201
2025 Q3	$3.18M	Sell	33,500 -2,500	-7%	-$199K	﹤0.01%	4127
2025 Q2	$2.71M	Buy	+36,000	New	+$2.04M	﹤0.01%	3936
2025 Q1	–	Sell	-20,800	Closed	-$1.12M	–	10508
2024 Q4	$1.12M	Buy	20,800 +9,100	+78%	+$510K	﹤0.01%	5148
2024 Q3	$711K	Buy	11,700 +8,900	+318%	+$587K	﹤0.01%	6574
2024 Q2	$227K	Sell	2,800 -32,400	-92%	-$2.53M	﹤0.01%	8213
2024 Q1	$2.71M	Buy	35,200 +18,100	+106%	+$1.24M	﹤0.01%	3575
2023 Q4	$1.05M	Sell	17,100 -19,000	-53%	-$1.09M	﹤0.01%	5492
2023 Q3	$1.85M	Sell	36,100 -258,600	-88%	-$14.7M	﹤0.01%	4183
2023 Q2	$21.2M	Buy	294,700 +287,400	+3,937%	+$18.4M	0.01%	1153
2023 Q1	$478K	Buy	+7,300	New	+$479K	﹤0.01%	6396
2022 Q4	–	Sell	-7,900	Closed	-$515K	–	10062
2022 Q3	$515K	Sell	7,900 -3,200	-29%	-$251K	﹤0.01%	6642
2022 Q2	$929K	Buy	11,100 +800	+8%	+$67.4K	﹤0.01%	5619
2022 Q1	$688K	Sell	10,300 -8,000	-44%	-$623K	﹤0.01%	6877
2021 Q4	$1.74M	Sell	18,300 -39,100	-68%	-$2.95M	﹤0.01%	4755
2021 Q3	$3.96M	Sell	57,400 -166,400	-74%	-$11.7M	﹤0.01%	3133
2021 Q2	$14.3M	Buy	223,800 +188,900	+541%	+$12.4M	0.01%	1354
2021 Q1	$2.07M	Sell	34,900 -59,600	-63%	-$3.39M	﹤0.01%	3947
2020 Q4	$4.55M	Buy	+94,500	New	+$3.86M	﹤0.01%	2252

Other funds holding SIMO

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

Reinhart Partners Mequon, Wisconsin $4.38B AUM 55.55% 1-Year Est. Return

Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return

HRCM

Hawk Ridge Capital Management Los Angeles, California $2.75B AUM 20.09% 1-Year Est. Return

Lord, Abbett & Co Jersey City, New Jersey $30.6B AUM 57.44% 1-Year Est. Return

Lazard Asset Management New York $60.8B AUM 22.47% 1-Year Est. Return

Robeco Institutional Asset Management Rotterdam, Netherlands $81.4B AUM 40.71% 1-Year Est. Return

WHCM

Wolf Hill Capital Management Greenwich, Connecticut $1.03B AUM 80.44% 1-Year Est. Return

Man Group London, United Kingdom $55.1B AUM 24.23% 1-Year Est. Return

ACM

Analog Century Management New York $2.09B AUM 186.85% 1-Year Est. Return

Jane Street's SIMO Position: Q1 2026 in Review

Jane Street reduced its Silicon Motion (SIMO) stake by 54% in Q1 2026, selling an estimated $5.22M and leaving 36,410 shares worth $4.09M. The position accounts for ﹤0.01% of the portfolio, ranked #3811.

Jane Street first reported a position in SIMO in Q3 2013 and has held it in 28 quarters since. The position peaked at $14.5M in Q4 2023. 273 funds tracked by Wall St. Rank hold SIMO as of Q1 2026.

Jane Street held 36,410 shares of Silicon Motion worth $4.09M as of Q1 2026.
Jane Street sold 42,980 Silicon Motion shares in Q1 2026, an estimated $5.22M.
Silicon Motion made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #3811 holding.
Jane Street first reported a position in Silicon Motion in Q3 2013 and has held it in 28 quarters since.
Jane Street's Silicon Motion position peaked at $14.5M in Q4 2023.
273 funds tracked by Wall St. Rank held Silicon Motion as of Q1 2026.

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