DAYTON POWER & LIGHT CO
    SEC Filings

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    All SEC filings by DAYTON POWER & LIGHT CO — annual and quarterly reports, current reports, registrations, proxies and ownership forms, updated in real time.

    Financials

    10-QQuarterly reportView DiffAug 4, 2026
    10-QQuarterly reportView DiffMay 5, 2026
    10-K/AAnnual reportView DiffApr 30, 2026
    10-KAnnual reportView DiffMar 2, 2026
    10-QQuarterly reportView DiffNov 4, 2025
    10-QQuarterly reportView DiffAug 1, 2025
    10-QQuarterly reportView DiffMay 1, 2025
    10-KAnnual reportView DiffMar 4, 2025
    10-QQuarterly reportView DiffOct 31, 2024
    10-QQuarterly reportView DiffAug 1, 2024

    Events

    8-KCurrent reportJul 27, 2026
    8-KCurrent reportJul 21, 2026
    8-KCurrent reportJul 15, 2026
    8-KDeparture of Directors or Certain OfficersApr 16, 2026
    8-KEntry Into a Material Definitive AgreementMar 19, 2026
    8-KOther EventsNov 5, 2025
    8-KDeparture of Directors or Certain OfficersOct 16, 2025
    8-KEntry Into a Material Definitive AgreementAug 19, 2025
    8-KOther EventsAug 14, 2025
    8-KEntry Into a Material Definitive AgreementAug 13, 2025

    Registrations and Prospectuses

    424B3Prospectus supplementDec 15, 2025
    S-4Registration of securities issued in business combination transactionsDec 5, 2025
    424B3Prospectus supplementMar 13, 2020
    S-4/ARegistration of securities issued in business combination transactionsView DiffMar 6, 2020
    S-4Registration of securities issued in business combination transactionsNov 8, 2019
    424B3Prospectus supplementJun 16, 2014
    S-4/ARegistration of securities issued in business combination transactionsView DiffJun 11, 2014
    S-4/ARegistration of securities issued in business combination transactionsView DiffJun 5, 2014
    S-4Registration of securities issued in business combination transactionsApr 16, 2014
    424B3Prospectus supplementMay 25, 2005

    Proxies

    No results found.

    Other

    EFFECTNotice of effectivenessDec 15, 2025
    EFFECTNotice of effectivenessMar 13, 2020
    CORRESPCorrespondence with SECMar 12, 2020
    UPLOADLetter from SECNov 20, 2019
    CORRESPCorrespondence with SECNov 8, 2019
    UPLOADLetter from SECAug 7, 2019
    CORRESPCorrespondence with SECJul 25, 2019
    UPLOADLetter from SECJul 12, 2019
    UPLOADLetter from SECMar 18, 2016
    CORRESPCorrespondence with SECMar 16, 2016

    Ownership

    11-KAnnual report of employee stock purchasesJun 28, 2006
    11-KAnnual report of employee stock purchasesJun 28, 2006
    11-KAnnual report of employee stock purchasesJun 29, 2005
    11-KAnnual report of employee stock purchasesJun 29, 2005
    SC 13G/ABeneficial ownership reportFeb 9, 1995
    SC 13GBeneficial ownership reportFeb 9, 1994