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Thompson Siegel & Walmsley’s ON Semiconductor ON Stock Holding History

Thompson Siegel & Walmsley’s Portfolio ON Stock Details ON Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-320,755
Closed -$15.8M – 418
2025
Q3 		$15.8M Sell
320,755
-63,805
-17% -$3.36M 0.26% 99
2025
Q2 		$20.2M Buy
+384,560
New +$16.7M 0.34% 83

Other funds holding ON

Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Janus Henderson Group
Janus Henderson Group London $209B AUM 37.72% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
SPC
Slate Path Capital New York $7.22B AUM 110.75% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Bank of America
Bank of America Charlotte, North Carolina $1.55T AUM 33.47% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Thompson Siegel & Walmsley's ON Position: Q4 2025 in Review

Thompson Siegel & Walmsley sold out of ON Semiconductor (ON) in Q4 2025, closing a stake of 320,755 shares — an estimated $15.8M sold.

Thompson Siegel & Walmsley first reported a position in ON in Q2 2025 and held it in 2 quarters. The position peaked at $20.2M in Q2 2025. 795 funds tracked by Wall St. Rank hold ON as of Q4 2025.

  • Thompson Siegel & Walmsley reported no remaining ON Semiconductor position as of Q4 2025 after selling out during the quarter.
  • Thompson Siegel & Walmsley sold 320,755 ON Semiconductor shares in Q4 2025, an estimated $15.8M.
  • Thompson Siegel & Walmsley first reported a position in ON Semiconductor in Q2 2025 and held it in 2 quarters.
  • Thompson Siegel & Walmsley's ON Semiconductor position peaked at $20.2M in Q2 2025.
  • 795 funds tracked by Wall St. Rank held ON Semiconductor as of Q4 2025.

Based on Thompson Siegel & Walmsley's 13F filing for Q4 2025, filed 10 Feb 2026.