Robeco Institutional Asset Management
SIMO icon

Robeco Institutional Asset Management’s Silicon Motion SIMO Stock Holding History

Robeco Institutional Asset Management’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 		$99.9M Sell
299,699
-331,882
-53% -$76.9M 0.12% 186
2026
Q1 		$70.9M Buy
631,581
+7,628
+1% +$926K 0.1% 215
2025
Q4 		$57.8M Buy
623,953
+181,206
+41% +$16.6M 0.08% 225
2025
Q3 		$42M Buy
442,747
+135,627
+44% +$10.8M 0.06% 255
2025
Q2 		$23.1M Buy
307,120
+43,854
+17% +$2.49M 0.04% 331
2025
Q1 		$13.3M Buy
263,266
+11,328
+4% +$613K 0.03% 401
2024
Q4 		$13.6M Sell
251,938
-124,386
-33% -$6.97M 0.03% 391
2024
Q3 		$22.9M Buy
376,324
+83,992
+29% +$5.54M 0.05% 310
2024
Q2 		$23.7M Buy
292,332
+251,019
+608% +$19.6M 0.05% 291
2024
Q1 		$3.18M Hold
41,313
– – 0.01% 620
2023
Q4 		$2.53M Buy
41,313
+7,587
+22% +$434K 0.01% 668
2023
Q3 		$1.73M Sell
33,726
-3,362
-9% -$191K ﹤0.01% 709
2023
Q2 		$2.67M Hold
37,088
– – 0.01% 648
2023
Q1 		$2.43M Hold
37,088
– – 0.01% 657
2022
Q4 		$2.41M Buy
+37,088
New +$2.27M 0.01% 670
2015
Q3 		– Sell
-26,517
Closed -$918K – 788
2015
Q2 		$918K Buy
+26,517
New +$865K 0.01% 592

Other funds holding SIMO

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Alkeon Capital Management
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
RP
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
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

Robeco Institutional Asset Management's SIMO Position: Q2 2026 in Review

Robeco Institutional Asset Management reduced its Silicon Motion (SIMO) stake by 53% in Q2 2026, selling an estimated $76.9M and leaving 299,699 shares worth $99.9M. The position accounts for 0.12% of the portfolio, ranked #186.

Robeco Institutional Asset Management first reported a position in SIMO in Q2 2015 and has held it in 16 quarters since. 385 funds tracked by Wall St. Rank hold SIMO as of Q2 2026.

  • Robeco Institutional Asset Management held 299,699 shares of Silicon Motion worth $99.9M as of Q2 2026.
  • Robeco Institutional Asset Management sold 331,882 Silicon Motion shares in Q2 2026, an estimated $76.9M.
  • Silicon Motion made up 0.12% of Robeco Institutional Asset Management's portfolio in Q2 2026, its #186 holding.
  • Robeco Institutional Asset Management first reported a position in Silicon Motion in Q2 2015 and has held it in 16 quarters since.
  • 385 funds tracked by Wall St. Rank held Silicon Motion as of Q2 2026.

Based on Robeco Institutional Asset Management's 13F filing for Q2 2026, filed 21 Jul 2026.