Polar Asset Management Partners’s Silicon Motion SIMO Stock Holding History

Polar Asset Management Partners’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 Q2	–	Sell	-28,218	Closed	-$3.17M	–	947
2026 Q1	$3.17M	Buy	+28,218	New	+$3.42M	0.06%	284
2025 Q4	–	Sell	-120,840	Closed	-$11.5M	–	807
2025 Q3	$11.5M	Sell	120,840 -84,911	-41%	-$6.75M	0.13%	125
2025 Q2	$15.5M	Buy	205,751 +92,475	+82%	+$5.25M	0.24%	68
2025 Q1	$5.73M	Sell	113,276 -49,424	-30%	-$2.67M	0.13%	172
2024 Q4	$8.79M	Sell	162,700 -17,300	-10%	-$969K	0.1%	173
2024 Q3	$10.9M	Buy	180,000 +27,900	+18%	+$1.84M	0.23%	107
2024 Q2	$12.3M	Sell	152,100 -33,400	-18%	-$2.61M	0.26%	83
2024 Q1	$14.3M	Buy	185,500 +15,400	+9%	+$1.05M	0.24%	73
2023 Q4	$10.4M	Buy	170,100 +160,100	+1,601%	+$9.15M	0.18%	109
2023 Q3	$513K	Buy	+10,000	New	+$569K	0.01%	496

Other funds holding SIMO

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return

Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return

Alkeon Capital Management New York $74.1B AUM 71.18% 1-Year Est. Return

HRCM

Hawk Ridge Capital Management Los Angeles, California $3.12B AUM 53.42% 1-Year Est. Return

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

PCH

Polar Capital Holdings London, United Kingdom $42.4B AUM 181.11% 1-Year Est. Return

DCM

Driehaus Capital Management Chicago, Illinois $17.3B AUM 211.34% 1-Year Est. Return

Two Sigma Investments New York $138B AUM 41.87% 1-Year Est. Return

WHCM

Wolf Hill Capital Management Greenwich, Connecticut $1.2B AUM 137.35% 1-Year Est. Return

Polar Asset Management Partners's SIMO Position: Q2 2026 in Review

Polar Asset Management Partners sold out of Silicon Motion (SIMO) in Q2 2026, closing a stake of 28,218 shares — an estimated $3.17M sold.

Polar Asset Management Partners first reported a position in SIMO in Q3 2023 and held it in 10 quarters. The position peaked at $15.5M in Q2 2025. 385 funds tracked by Wall St. Rank hold SIMO as of Q2 2026.

Polar Asset Management Partners reported no remaining Silicon Motion position as of Q2 2026 after selling out during the quarter.
Polar Asset Management Partners sold 28,218 Silicon Motion shares in Q2 2026, an estimated $3.17M.
Polar Asset Management Partners first reported a position in Silicon Motion in Q3 2023 and held it in 10 quarters.
Polar Asset Management Partners's Silicon Motion position peaked at $15.5M in Q2 2025.
385 funds tracked by Wall St. Rank held Silicon Motion as of Q2 2026.

Based on Polar Asset Management Partners's 13F filing for Q2 2026, filed 14 Aug 2026.