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Offerings // Duke Energy CORP

DUK offering history

Every offering-related filing in Duke Energy CORP’s recent SEC record — registrations (announced capacity) kept separate from pricing documents (executed sales). Reviewed 1,001 filings back to Mar 4, 2019.

Last executed offering
Aug 12, 2026
424B5 — priced deal (shares or notes)
Last registration (announced)
Sep 30, 2025
S-3ASR — capacity, not a sale
Executed, last 12 months
6
424B pricings + 8-K 3.02 sales
Registered, last 12 months
2
S-1/S-3/F-series registrations
DateFilingWhat it means
Aug 12, 2026424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Aug 11, 2026FWP →MARKETINGFree-writing prospectus — offering being marketed
Aug 10, 2026424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Apr 13, 2026424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Mar 12, 20268-K →EXECUTEDUnregistered share sale disclosed (8-K item 3.02)
Mar 6, 2026424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Dec 22, 2025424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Nov 17, 2025FWP →MARKETINGFree-writing prospectus — offering being marketed
Nov 10, 2025424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Oct 1, 2025424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Sep 30, 2025S-3ASR →REGISTEREDAutomatic shelf registration — effective immediately (large filers)
Sep 29, 2025424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Sep 24, 2025S-3ASR →REGISTEREDAutomatic shelf registration — effective immediately (large filers)
Sep 9, 2025424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Sep 8, 2025424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Sep 8, 2025FWP →MARKETINGFree-writing prospectus — offering being marketed
Jan 27, 2025S-3ASR →REGISTEREDAutomatic shelf registration — effective immediately (large filers)
Dec 23, 2024424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Aug 20, 2024424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Aug 19, 2024424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Aug 19, 2024FWP →MARKETINGFree-writing prospectus — offering being marketed
Jun 6, 2024424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jun 5, 2024424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jun 5, 2024FWP →MARKETINGFree-writing prospectus — offering being marketed
Apr 10, 2024424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Apr 9, 2024424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Apr 9, 2024FWP →MARKETINGFree-writing prospectus — offering being marketed
Jan 10, 2024424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jan 9, 2024424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jan 9, 2024FWP →MARKETINGFree-writing prospectus — offering being marketed
Jan 3, 2024424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jan 2, 2024424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Jan 2, 2024FWP →MARKETINGFree-writing prospectus — offering being marketed
Sep 6, 2023424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Sep 5, 2023424B5 →EXECUTEDShelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm)
Sep 5, 2023FWP →MARKETINGFree-writing prospectus — offering being marketed
Aug 7, 2023424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
May 15, 2023424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
May 8, 2023424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
Apr 10, 2023424B3 →UPDATEProspectus update — often a resale registration, not necessarily new capital
DUK 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 DUK workspace →
DUK offering FAQ

When did DUK last execute an offering?

Per SEC filings, Duke Energy CORP's most recent priced offering document is a 424B5 filed 2026-08-12. Note a 424B takedown can price shares or notes (debt) — the linked document says which.

When did DUK last announce or register an offering?

The most recent registration is a S-3ASR filed 2025-09-30. 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.