Every 424B that Duke Energy Corporation (DUK) has filed with the SEC in the last 12 months is listed below, newest first, and each one links through to the document itself with the summary and the scores our analysis gives it.
A 424B covers the supplement that carries the terms of a priced offering, so if you follow DUK and want that one kind of document rather than the whole filing history, this is the page to keep. The company's other filings, of every form, are on the full DUK filings page.
Duke Energy Corporation’s PremierNotes variable-denomination floating-rate demand notes carry a 4.00% annual interest rate and a 4.08% yield as of September 28, 2026. The rate is determined weekly by the Duke Energy PremierNotes Committee or its designee and takes effect the following Monday.
Duke Energy Corporation is issuing 35,000,000 Equity Units, each with a stated amount of $50, for total gross proceeds of $1.75 billion. Each Corporate Unit combines a stock purchase contract with undivided interests in Remarketable Senior Notes due 2032 and 2036, which initially bear 4.85% annual interest and are subject to future remarketing and rate reset.
Each purchase contract obligates holders on August 1, 2029 to buy Duke Energy common stock for $50, receiving between 0.3301 and 0.4126 shares depending on the 20‑day volume‑weighted average price relative to reference prices of $151.4693 and $121.1827. Holders receive quarterly 2.90% annual contract adjustment payments, which Duke may defer with a step‑up to 7.75% on deferred amounts, while interest on the RSNs cannot be deferred.
Duke expects net proceeds of about $1.719 billion (or $1.965 billion with full over‑allotment) to help redeem $500 million of 3.25% junior subordinated debentures due 2082, repay a portion of $2.1 billion of commercial paper (weighted average rate 3.91%), and for general corporate purposes.
Duke Energy Corporation is offering 35,000,000 Equity Units, each with a stated amount of $50, initially issued as Corporate Units composed of a stock purchase contract and undivided interests in two series of Remarketable Senior Notes due 2032 and 2036. The company may sell up to an additional 5,000,000 Equity Units to cover over-allotments. The Corporate Units are expected to be listed on the NYSE under the symbol “DUKU”, while the common stock trades under “DUK”.
Each purchase contract obligates holders to buy Duke Energy common stock on August 1, 2029 for $50, with the number of shares determined by a formula based on the 20‑day volume‑weighted average price before settlement, subject to anti‑dilution and fundamental change adjustments. Holders receive quarterly contract adjustment payments and interest on the RSNs; both RSN series are senior unsecured obligations, structurally subordinated to subsidiary liabilities. The RSNs may be remarketed, with proceeds funding Treasury portfolios that secure stock purchase obligations.
Net proceeds are expected to be used to redeem $500 million of 3.25% junior subordinated debentures due 2082, repay a portion of approximately $2.1 billion of commercial paper (weighted average rate 3.91%), and for general corporate purposes. Separately, subsidiary Duke Energy Progress filed a comprehensive North Carolina rate settlement featuring a 9.8% ROE, an approximately $17.8 billion retail rate base and about $3.4 billion of multi‑year capital, which remains subject to regulatory approval and is expected to trigger about $30 million of one‑time pre‑tax charges.
Duke Energy Corporation updated its PremierNotes pricing supplement to transition to a single investment tier, effective April 13, 2026. As of that date the Notes will pay the same floating interest rate for all invested amounts: 3.82% yield / 3.75% rate. The Registration Statement (No. 333-290634) was automatically effective on September 30, 2025.
Duke Energy Corporation is offering up to $6,000,000,000 of common stock from time to time under an equity distribution agreement that permits sales through sales agents and related forward transactions. The program may include initially priced forwards and collared forwards, and terminates upon the earlier of September 23, 2028, sale of the full amount, or earlier termination as specified.
The company will not initially receive proceeds from borrowed-share sales used to hedge forward transactions; expected cash proceeds depend on future physical settlement terms, price adjustments and any election to cash or net share settle. Duke Energy's common stock trades on the NYSE under the symbol DUK (March 5, 2026 close: $131.61).
Duke Energy Corporation updated the interest rates on its Duke Energy PremierNotes variable denomination floating rate demand notes. The Notes pay a weekly set floating rate that can vary with the principal amount an investor holds. Effective December 22, 2025, the interest rates at each ownership tier are reduced by 0.25% per annum.
After this change, balances from $0–$9,999.99 earn a 3.55% rate (3.61% yield), balances from $10,000–$49,999.99 earn a 3.65% rate (3.72% yield), and balances of $50,000 and above earn a 3.75% rate (3.82% yield). These tiers show how larger PremierNotes balances receive slightly higher interest rates.