Eversource Energy
    SEC Filings

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    All SEC filings by Eversource Energy (ES) — 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 7, 2026
    ARSAnnual report to shareholdersMar 27, 2026
    10-KAnnual reportView DiffFeb 17, 2026
    10-QQuarterly reportView DiffNov 6, 2025
    10-QQuarterly reportView DiffAug 4, 2025
    10-QQuarterly reportView DiffMay 5, 2025
    ARSAnnual report to shareholdersMar 21, 2025
    10-KAnnual reportView DiffFeb 14, 2025
    10-QQuarterly reportView DiffNov 6, 2024

    Events

    8-KEversource Energy Reports Second Quarter 2026 ResultsJul 30, 2026
    8-KCurrent reportJun 30, 2026
    8-KEversource Energy Reports First Quarter 2026 ResultsMay 6, 2026
    8-KRegulation Fd DisclosureMar 31, 2026
    8-KCreation of a Direct Financial Obligation or an Obligation Under an Off-Balance Sheet Arrangement of a RegistrantFeb 26, 2026
    8-KEversource Energy Reports Full-Year & Fourth Quarter 2025 ResultsFeb 12, 2026
    8-KAmendments to the Registrant'S Code of Ethics, or Waiver of a Provision of the Code of EthicsJan 30, 2026
    8-KDeparture of Directors or Certain OfficersDec 5, 2025
    8-KEversource Statement on Next Steps Following Aquarion DecisionNov 24, 2025
    8-KEversource Energy Reports Third Quarter 2025 ResultsNov 4, 2025

    Registrations and Prospectuses

    424B5Prospectus supplement for primary offeringFeb 24, 2026
    FWPFree writing prospectusFeb 23, 2026
    FWPFree writing prospectusFeb 23, 2026
    FWPFree writing prospectusFeb 23, 2026
    FWPFree writing prospectusFeb 23, 2026
    424B3Prospectus supplementFeb 23, 2026
    POSASRAutomatic shelf registration (post-effective amendment)Feb 20, 2026
    424B5Prospectus supplement for primary offeringOct 16, 2025
    FWPFree writing prospectusOct 15, 2025
    424B3Prospectus supplementOct 15, 2025

    Proxies

    DEFA14AAdditional proxy soliciting materialsMar 27, 2026
    DEF 14ADefinitive proxyView DiffMar 27, 2026
    DEFR14ARevised proxyApr 3, 2025
    DEFA14AAdditional proxy soliciting materialsMar 21, 2025
    DEF 14ADefinitive proxyView DiffMar 21, 2025
    PRE 14APreliminary proxyView DiffMar 7, 2025
    DEF 14ADefinitive proxyView DiffMar 22, 2024
    DEFA14AAdditional proxy soliciting materialsMar 22, 2024
    DEFR14ARevised proxyApr 3, 2023
    DEFA14AAdditional proxy soliciting materialsMar 24, 2023

    Other

    EFFECTNotice of effectivenessMay 18, 2022
    CORRESPCorrespondence with SECMay 13, 2022
    UPLOADLetter from SECApr 20, 2022
    EFFECTNotice of effectivenessJun 28, 2021
    CORRESPCorrespondence with SECJun 23, 2021
    UPLOADLetter from SECJun 11, 2021
    CORRESPCorrespondence with SECJul 18, 2018
    CORRESPCorrespondence with SECJun 14, 2018
    CORRESPCorrespondence with SECMay 29, 2018
    CORRESPCorrespondence with SECMay 15, 2018

    Ownership

    4Conner Penelope MAug 26, 2026
    144Notice of proposed sale of securitiesAug 25, 2026
    144Notice of proposed sale of securitiesAug 24, 2026
    11-KAnnual report of employee stock purchasesJun 12, 2026
    4Butler Gregory BJun 5, 2026
    144Notice of proposed sale of securitiesJun 4, 2026
    4Jay S. ButhMay 18, 2026
    4W Robert MudgeMay 11, 2026
    SC 13GBeneficial ownership reportApr 29, 2026
    SC 13GBeneficial ownership reportApr 29, 2026