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Offerings // EVERSOURCE ENERGY

ES offering history

Every offering-related filing in EVERSOURCE ENERGY’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 1,000 filings back to Nov 13, 2014.

Last executed offering
Feb 24, 2026
424B5 — priced deal (shares or notes)
Last registration (announced)
Apr 3, 2025
S-3ASR — capacity, not a sale
Executed, last 12 months
2
424B pricings + 8-K 3.02 sales
Registered, last 12 months
0
S-1/S-3/F-series registrations
DateFilingWhat it means
Feb 24, 2026424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Feb 23, 2026424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Feb 23, 2026FWP →MARKETINGFree-writing prospectus — offering being marketed
Feb 23, 2026FWP →MARKETINGFree-writing prospectus — offering being marketed
Oct 16, 2025424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Oct 15, 2025424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Oct 15, 2025FWP →MARKETINGFree-writing prospectus — offering being marketed
May 30, 2025424B2 →EXECUTEDProspectus supplement priced — shares or notes (large filers: often a bond deal)
Apr 3, 2025S-3ASR →REGISTEREDAutomatic shelf registration — effective immediately (large filers)
Apr 16, 2024424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Apr 15, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Apr 15, 2024FWP →MARKETINGFree-writing prospectus — offering being marketed
Apr 15, 2024FWP →MARKETINGFree-writing prospectus — offering being marketed
Apr 1, 2024S-3ASR →REGISTEREDAutomatic shelf registration — effective immediately (large filers)
Jan 17, 2024424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jan 16, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Jan 16, 2024FWP →MARKETINGFree-writing prospectus — offering being marketed
Jan 16, 2024FWP →MARKETINGFree-writing prospectus — offering being marketed
Nov 9, 2023424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Nov 8, 2023424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Nov 8, 2023FWP →MARKETINGFree-writing prospectus — offering being marketed
May 9, 2023FWP →MARKETINGFree-writing prospectus — offering being marketed
May 9, 2023FWP →MARKETINGFree-writing prospectus — offering being marketed
May 9, 2023FWP →MARKETINGFree-writing prospectus — offering being marketed
May 9, 2023424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
May 8, 2023424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Mar 2, 2023424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Mar 1, 2023424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Mar 1, 2023FWP →MARKETINGFree-writing prospectus — offering being marketed
Jun 23, 2022424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jun 22, 2022424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Jun 22, 2022FWP →MARKETINGFree-writing prospectus — offering being marketed
Jun 22, 2022FWP →MARKETINGFree-writing prospectus — offering being marketed
May 17, 2022424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
May 17, 2022EFFECT →EFFECTIVESEC declared a registration effective — selling can begin
May 11, 2022424B2 →EXECUTEDProspectus supplement priced — shares or notes (large filers: often a bond deal)
Apr 13, 2022S-3ASR →REGISTEREDAutomatic shelf registration — effective immediately (large filers)
Feb 23, 2022424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Feb 22, 2022424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Feb 22, 2022FWP →MARKETINGFree-writing prospectus — offering being marketed
ES offering-related filings from SEC EDGAR, newest first (capped at 40). Each links to the original document.

Two honest limits. (1) A 424B takedown can price shares or notes— EDGAR’s metadata doesn’t say which, so open the document: large investment-grade filers use these mostly for bond deals (no dilution), small-caps mostly for shares. (2) At-the-market (ATM) programs sell shares gradually and individual sales are not separately filed — the visible footprint is the enabling shelf and its 424B5; actual ATM share counts surface later in the 10-Q/10-K share count. Educational information from public filings, not investment advice.

Is a shelf active now? →Do they need money? →Red flags →Full ES workspace →
ES offering FAQ

When did ES last execute an offering?

Per SEC filings, EVERSOURCE ENERGY's most recent priced offering document is a 424B5 filed 2026-02-24. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did ES last announce or register an offering?

The most recent registration is a S-3ASR filed 2025-04-03. A registration is capacity to sell shares — not a sale.

Does an offering always mean dilution?

Registered direct offerings and shelf takedowns issue new shares and dilute existing holders. Resale registrations (424B3/B7) let existing holders sell and do not create new shares. Secondary sales by insiders also do not dilute. Each row here is labeled with what it is.