ON Semiconductor Corporation
    SEC Filings

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    All SEC filings by ON Semiconductor Corporation (ON) — annual and quarterly reports, current reports, registrations, proxies and ownership forms, updated in real time.

    Financials

    10-QQuarterly reportView DiffAug 3, 2026
    10-QQuarterly reportView DiffMay 4, 2026
    ARSAnnual report to shareholdersApr 2, 2026
    10-KAnnual reportView DiffFeb 9, 2026
    10-QQuarterly reportView DiffNov 3, 2025
    10-QQuarterly reportView DiffAug 4, 2025
    10-QQuarterly reportView DiffMay 5, 2025
    ARSAnnual report to shareholdersApr 3, 2025
    10-KAnnual reportView DiffFeb 10, 2025
    10-QQuarterly reportView DiffOct 28, 2024

    Events

    8-KCurrent reportAug 13, 2026
    8-KEarnings Per Share Increases Four Times Faster Than Revenue Year-Over-YearAug 3, 2026
    8-KCurrent reportJun 25, 2026
    8-KDeparture of Directors or Certain OfficersMay 18, 2026
    8-KEntry Into a Material Definitive AgreementMay 11, 2026
    8-KOther EventsMay 7, 2026
    8-KOther EventsMay 6, 2026
    8-KYear-Over-Year Operating Income Growth Outpaces Revenue Growth by 2xMay 4, 2026
    8-KDeparture of Directors or Certain OfficersMar 11, 2026
    8-KResults of Operations and Financial ConditionFeb 9, 2026

    Registrations and Prospectuses

    S-4Registration of securities issued in business combination transactionsAug 21, 2026
    425Business combination disclosureAug 13, 2026
    425Business combination disclosureAug 11, 2026
    425Business combination disclosureJun 29, 2026
    425Business combination disclosureJun 26, 2026
    425Business combination disclosureJun 26, 2026
    425Business combination disclosureJun 26, 2026
    425Business combination disclosureJun 26, 2026
    425Business combination disclosureJun 26, 2026
    425Business combination disclosureJun 26, 2026

    Proxies

    DEFA14AAdditional proxy soliciting materialsApr 2, 2026
    DEF 14ADefinitive proxyView DiffApr 2, 2026
    DEFA14AAdditional proxy soliciting materialsApr 3, 2025
    DEF 14ADefinitive proxyView DiffApr 3, 2025
    DEFA14AAdditional proxy soliciting materialsApr 4, 2024
    DEF 14ADefinitive proxyView DiffApr 4, 2024
    DEFA14AAdditional proxy soliciting materialsApr 6, 2023
    DEF 14ADefinitive proxyView DiffApr 6, 2023
    DEFA14AAdditional proxy soliciting materialsApr 6, 2022
    DEF 14ADefinitive proxyView DiffApr 6, 2022

    Other

    SDConflict minerals disclosureMay 18, 2026
    SDConflict minerals disclosureMay 20, 2025
    SDConflict minerals disclosureMay 23, 2024
    UPLOADLetter from SECSep 14, 2023
    CORRESPCorrespondence with SECSep 11, 2023
    UPLOADLetter from SECAug 24, 2023
    SDConflict minerals disclosureMay 22, 2023
    SDConflict minerals disclosureMay 27, 2022
    SDConflict minerals disclosureMay 21, 2021
    SDConflict minerals disclosureMay 22, 2020

    Ownership

    4Mascarenas Paul AnthonyJul 2, 2026
    144Notice of proposed sale of securitiesJun 10, 2026
    144Notice of proposed sale of securitiesJun 3, 2026
    4Sudhir GopalswamyMay 27, 2026
    3Achyut ShahMay 22, 2026
    4Thomas DeitrichMay 18, 2026
    4Gregory L WatersMay 18, 2026
    4Susan K CarterMay 18, 2026
    4Christine Y YanMay 18, 2026
    4Bruce E KiddooMay 18, 2026