X0508 4 2025-05-26 0001097864 ON SEMICONDUCTOR CORP ON 0001722291 GOPALSWAMY SUDHIR 5701 NORTH PIMA ROAD SCOTTSDALE AZ 85250 1 Group President, AMG & ISG 0 Common 2025-05-26 4 F 0 470.0000 41.2700 D 143583.0000 D Represents shares withheld to cover taxes due upon the vesting of restricted stock units. Includes an additional 99 shares that were acquired by the Reporting Person under the Issuer's Employee Stock Purchase Plan since his last Section 16 filing. /s/ Hope M. Spencer, Attorney-in-Fact 2025-05-27