DUK: Financial results

Item 2.02 Results of Operations and Financial Conditions. On November 5, 2026, Duke Energy Corporation (the "Corporation") will issue and post a news release to its website ( duke-energy.com/investors) announcing its financial results for the third quarter ended September 30, 2026. A copy of this news release is attached hereto as Exhibit 99.1. The information in Exhibit 99.1 is being furnished pursuant to this Item 2.02. In accordance with General Instruction B.2 of Form 8-K, the information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed "filed" for the purposes of Section 18 of the Securities and Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that section. Item 9.01 Financial Statements and Exhibits. (d) Exhibits 99.1 News Release to be issued by Duke Energy Corporation on November 5 , 2026 (furnished pursuant to Item 2.02). 104 Cover Page Interactive Data File (embedded within the Inline XBRL document). SIGNATURE Pursuant to the requirements of the Securities and Exchange Act of 1934, the registrant has duly caused this Report to be signed on its behalf by the undersigned hereunto duly authorized. DUKE ENERGY CORPORATION /s/ ABIGAIL L. MOTSINGER Abigail L. Motsinger Senior Vice President, Chief Accounting Officer and Controller Dated: November 5, 2026