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 6, 2019.
| Date | Filing | What it means | |
|---|---|---|---|
| Sep 28, 2026 | 424B3 → | UPDATE | Prospectus update — often a resale registration, not necessarily new capital |
| Aug 12, 2026 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Aug 11, 2026 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| Aug 10, 2026 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Apr 13, 2026 | 424B3 → | UPDATE | Prospectus update — often a resale registration, not necessarily new capital |
| Mar 12, 2026 | 8-K → | EXECUTED | Unregistered share sale disclosed (8-K item 3.02) |
| Mar 6, 2026 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Dec 22, 2025 | 424B3 → | UPDATE | Prospectus update — often a resale registration, not necessarily new capital |
| Nov 17, 2025 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| Nov 10, 2025 | 424B3 → | UPDATE | Prospectus update — often a resale registration, not necessarily new capital |
| Oct 1, 2025 | 424B3 → | UPDATE | Prospectus update — often a resale registration, not necessarily new capital |
| Sep 30, 2025 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Sep 29, 2025 | 424B3 → | UPDATE | Prospectus update — often a resale registration, not necessarily new capital |
| Sep 24, 2025 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Sep 9, 2025 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Sep 8, 2025 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Sep 8, 2025 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| Jan 27, 2025 | S-3ASR → | REGISTERED | Automatic shelf registration — effective immediately (large filers) |
| Dec 23, 2024 | 424B3 → | UPDATE | Prospectus update — often a resale registration, not necessarily new capital |
| Aug 20, 2024 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Aug 19, 2024 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Aug 19, 2024 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| Jun 6, 2024 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jun 5, 2024 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jun 5, 2024 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| Apr 10, 2024 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Apr 9, 2024 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Apr 9, 2024 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| Jan 10, 2024 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jan 9, 2024 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jan 9, 2024 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| Jan 3, 2024 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jan 2, 2024 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Jan 2, 2024 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| Sep 6, 2023 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Sep 5, 2023 | 424B5 → | EXECUTED | Shelf takedown priced — shares or notes (small-caps: usually shares; open the filing to confirm) |
| Sep 5, 2023 | FWP → | MARKETING | Free-writing prospectus — offering being marketed |
| Aug 7, 2023 | 424B3 → | UPDATE | Prospectus update — often a resale registration, not necessarily new capital |
| May 15, 2023 | 424B3 → | UPDATE | Prospectus update — often a resale registration, not necessarily new capital |
| May 8, 2023 | 424B3 → | UPDATE | Prospectus update — often a resale registration, not necessarily new capital |
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.
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.
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