144 0001722291 XXXXXXXX LIVE 0001097864 ON SEMICONDUCTOR CORP 001-39317 5701 NORTH PIMA ROAD SCOTTSDALE AZ 85250 6022446600 GOPALSWAMY SUDHIR Officer Common Rockefeller Capital Management

1850 MT. Diablo BLVD, Suite 300 Walnut Creek CA 94596

15578 1246240.00 389311721 10/01/2026 NASDAQ Common 02/07/2025 Stock Award Isuer N 4536 02/07/2025 Compensation Common 02/07/2025 Stock Award Issuer N 2204 02/07/2025 Compensation Common 04/22/2024 Stock Award Issuer N 8838 04/22/2024 Compensation Y Shares sold from the following trust: SUDHIR GOPALSWAMY LIVING TRUST 10/01/2026 05/14/2026 Carmen Zamores as a duly authorized representative of National Financial Services LLC, as attorney-in-fact for GOPALSWAMY SUDHIR