8-K current report · filed Sep 25, 2026

Duke Energy (DUK) 8-K Current Report: September 25, 2026

Item 5.02Item 8.01Item EX-99.1DUK overview

Short answer

Duke Energy (DUK) filed an 8-K current report with the SEC on September 25, 2026 reporting Item 5.02 (Departure/Election of Directors or Officers), Item 8.01 (Other Events), Item EX-99.1 (Exhibit EX-99.1). Joyce Mullen appointed Duke Energy director effective September 28, 2026, with term expiring at 2027 annual meeting.

Duke Energy 8-K event analysis

AI summary of each reported item and its exhibits

Item 5.02 · Departure/Election of Directors or Officers

  • Joyce Mullen appointed Duke Energy director effective September 28, 2026, with term expiring at 2027 annual meeting
  • Independent director adds technology, operations, supply-chain and logistics leadership experience
  • Audit Committee and Operations and Nuclear Oversight Committee appointments increase oversight responsibilities
  • Director ownership requirement: $700,000 in Duke Energy stock or retention of 50% of vested annual equity retainer
  • Pro-rated cash and stock retainers under Duke Energy’s director compensation program

Item 8.01 · Other Events

  • Anne Mullen appointed to Duke Energy’s Board of Directors
  • Board appointment may influence governance, oversight, and shareholder representation
  • Press release details provided in Exhibit 99.1

Item EX-99.1 · Exhibit EX-99.1

  • Joyce Mullen appointed Duke Energy director effective Sept. 28, 2026
  • Audit Committee and Operations and Nuclear Oversight Committee assignments
  • Former Insight Enterprises CEO, with AI, digital transformation, operations and growth leadership experience
  • Board expertise supports Duke’s energy modernization amid rising customer demand and industry technology changes
  • Existing Toro Company directorship adds potential governance workload considerations

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