DUK: Leadership change · Other company developments

Item 5.02. Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. Appointment of Joyce Mullen to the Board of Directors On September 24, 2026, the Board of Directors (the “Board”) of Duke Energy Corporation (the “Corporation”) appointed Joyce Mullen to the Board, effective September 28, 2026, with an initial term expiring at the 2027 Annual Meeting of Shareholders. The Board also appointed Ms. Mullen to the Audit Committee and the Operations and Nuclear Oversight Committee of the Board, effective September 28, 2026. Ms. Mullen retired as president and chief executive officer of Insight Enterprises, Inc. (“Insight”), a Fortune 500 technology company, in April 2026 and continues to advise Insight’s leadership as executive vice president of strategic development. She joined Insight in October 2020 as president of North America. Before joining Insight, Ms. Mullen held several executive positions at Dell Technologies, where she led organizations encompassing sales, operations, supply chain, partner strategy, services delivery and logistics. Earlier in her career, she held leadership positions at Cummins Engine Company. Ms. Mullen also serves on the board of directors of The Toro Company. The Board has affirmatively determined that Ms. Mullen is independent pursuant to the Corporation’s Standards for Assessing Director Independence, the listing standards of the New York Stock Exchange and the rules and regulations of the U.S. Securities and Exchange Commission. As a non-employee director of the Corporation, Ms. Mullen will receive a pro-rated payment of the cash and stock annual retainer and will be eligible for other retainers, if applicable, in accordance with the Corporation’s Direc