William Blair Investment Management’s ON Semiconductor ON Stock Holding History

William Blair Investment Management’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 Q1	–	Sell	-3,253	Closed	-$205K	–	447
2024 Q4	$205K	Buy	+3,253	New	+$224K	﹤0.01%	431
2022 Q1	–	Sell	-7,488	Closed	-$509K	–	451
2021 Q4	$509K	Sell	7,488 -6,259	-46%	-$355K	﹤0.01%	383
2021 Q3	$629K	Buy	+13,747	New	+$588K	﹤0.01%	390

Other funds holding ON

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

Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return

BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Janus Henderson Group London, United Kingdom $209B AUM 37.72% 1-Year Est. Return

Ameriprise Minneapolis, Minnesota $432B AUM 30.22% 1-Year Est. Return

JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

William Blair Investment Management's ON Position: Q1 2025 in Review

William Blair Investment Management sold out of ON Semiconductor (ON) in Q1 2025, closing a stake of 3,253 shares — an estimated $205K sold.

William Blair Investment Management first reported a position in ON in Q3 2021 and held it in 3 quarters. The position peaked at $629K in Q3 2021. 742 funds tracked by Wall St. Rank hold ON as of Q1 2025.

William Blair Investment Management reported no remaining ON Semiconductor position as of Q1 2025 after selling out during the quarter.
William Blair Investment Management sold 3,253 ON Semiconductor shares in Q1 2025, an estimated $205K.
William Blair Investment Management first reported a position in ON Semiconductor in Q3 2021 and held it in 3 quarters.
William Blair Investment Management's ON Semiconductor position peaked at $629K in Q3 2021.
742 funds tracked by Wall St. Rank held ON Semiconductor as of Q1 2025.

Based on William Blair Investment Management's 13F filing for Q1 2025, filed 9 May 2025.