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Monolith Management’s Silicon Motion SIMO Stock Holding History

Monolith 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
2025
Q4 		– Sell
-2,100
Closed -$199K – 28
2025
Q3 		$199K Buy
+2,100
New +$167K 0.09% 16

Other funds holding SIMO

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
RP
Reinhart Partners Mequon, Wisconsin $4.38B AUM 55.55% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $84.2B AUM 55.88% 1-Year Est. Return
PP
Pertento Partners London, United Kingdom $1.86B AUM 53.86% 1-Year Est. Return
Lord, Abbett & Co
Lord, Abbett & Co Jersey City, New Jersey $34.9B AUM 72.7% 1-Year Est. Return
HRCM
Hawk Ridge Capital Management Los Angeles, California $3.12B AUM 53.42% 1-Year Est. Return
Lazard Asset Management
Lazard Asset Management New York $66.1B AUM 33.53% 1-Year Est. Return
Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Robeco Institutional Asset Management
Robeco Institutional Asset Management Rotterdam, Netherlands $81.4B AUM 40.71% 1-Year Est. Return

Monolith Management's SIMO Position: Q4 2025 in Review

Monolith Management sold out of Silicon Motion (SIMO) in Q4 2025, closing a stake of 2,100 shares — an estimated $199K sold.

Monolith Management first reported a position in SIMO in Q3 2025 and held it in 1 quarter. The position peaked at $199K in Q3 2025. 240 funds tracked by Wall St. Rank hold SIMO as of Q4 2025.

  • Monolith Management reported no remaining Silicon Motion position as of Q4 2025 after selling out during the quarter.
  • Monolith Management sold 2,100 Silicon Motion shares in Q4 2025, an estimated $199K.
  • Monolith Management first reported a position in Silicon Motion in Q3 2025 and held it in 1 quarter.
  • Monolith Management's Silicon Motion position peaked at $199K in Q3 2025.
  • 240 funds tracked by Wall St. Rank held Silicon Motion as of Q4 2025.

Based on Monolith Management's 13F filing for Q4 2025, filed 17 Feb 2026.