Avista Corporation
    SEC Filings

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

    Financials

    10-QQuarterly reportView DiffJul 31, 2026
    10-QQuarterly reportView DiffMay 4, 2026
    ARSAnnual report to shareholdersApr 1, 2026
    10-KAnnual reportView DiffFeb 24, 2026
    10-QQuarterly reportView DiffNov 4, 2025
    10-QQuarterly reportView DiffAug 5, 2025
    10-QQuarterly reportView DiffMay 6, 2025
    ARSAnnual report to shareholdersMar 26, 2025
    10-KAnnual reportView DiffFeb 25, 2025
    10-QQuarterly reportView DiffNov 5, 2024

    Events

    8-KCurrent reportAug 19, 2026
    8-KActive Fires and Damaged Infrastructure Continue to Affect Electric and Natural Gas Service in Parts of the Spokane AreaAug 3, 2026
    8-KInvestors: Stacey Walters (509) 495-2046stacey.walters@avistacorp.comJul 31, 2026
    8-KCurrent reportJul 2, 2026
    8-KCurrent reportJun 12, 2026
    8-KCurrent reportJun 2, 2026
    8-KEntry Into a Material Definitive AgreementMay 19, 2026
    8-KInvested in Progress Grounded in Resilience Investor Presentation May 2026May 13, 2026
    8-KAvista Corp. Reports Q1 2026 Financial Results, Confirms 2026 Utility Earnings GuidanceMay 4, 2026
    8-KEnergy That Transforms Investor Presentation March 2026Mar 4, 2026

    Registrations and Prospectuses

    S-8Registration of securities for employeesApr 27, 2026
    424B5Prospectus supplement for primary offeringAug 8, 2025
    424B5Prospectus supplement for primary offeringMay 7, 2025
    S-3ASRAutomatic shelf registrationMay 7, 2025
    424B5Prospectus supplement for primary offeringMay 7, 2024
    424B5Prospectus supplement for primary offeringAug 2, 2023
    424B5Prospectus supplement for primary offeringMay 9, 2022
    S-3ASRAutomatic shelf registrationMay 9, 2022
    424B2Prospectus for primary offeringMar 9, 2022
    FWPFree writing prospectusMar 8, 2022

    Proxies

    DEFA14AAdditional proxy soliciting materialsApr 1, 2026
    DEF 14ADefinitive proxyView DiffApr 1, 2026
    DEFA14AAdditional proxy soliciting materialsMar 26, 2025
    DEF 14ADefinitive proxyView DiffMar 26, 2025
    DEFA14AAdditional proxy soliciting materialsMar 20, 2024
    DEF 14ADefinitive proxyView DiffMar 20, 2024
    DEFA14AAdditional proxy soliciting materialsMar 28, 2023
    DEF 14ADefinitive proxyView DiffMar 28, 2023
    DEFA14AAdditional proxy soliciting materialsMar 31, 2022
    DEF 14ADefinitive proxyView DiffMar 31, 2022

    Other

    SDConflict minerals disclosureMay 20, 2020
    SDConflict minerals disclosureMay 31, 2019
    UPLOADLetter from SECAug 28, 2018
    CORRESPCorrespondence with SECAug 23, 2018
    UPLOADLetter from SECAug 14, 2018
    EFFECTNotice of effectivenessDec 24, 2014
    EFFECTNotice of effectivenessMay 8, 2014
    UPLOADLetter from SECOct 22, 2012
    CORRESPCorrespondence with SECSep 28, 2012
    UPLOADLetter from SECSep 17, 2012

    Ownership

    4Widmann Janet D.Sep 2, 2026
    4Stanley Heidi BSep 2, 2026
    4Philipps Jeffry L.Sep 2, 2026
    4Morris Scott LSep 2, 2026
    4Maw Scott HarlanSep 2, 2026
    4Kwawu Sena MSep 2, 2026
    4Klein Rebecca ASep 2, 2026
    4Jacobsen Kevin BSep 2, 2026
    4Burke Donald CSep 2, 2026
    4Diluciano Joshua DSep 2, 2026