Welcome to our dedicated page for Duke Energy SEC filings (Ticker: DUK), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
Duke Energy Corporation filings document the regulatory record of a Delaware energy holding company with electric and natural gas utility subsidiaries. Disclosures cover material events, operating and financial results, governance matters, shareholder voting, annual meeting proxy materials, and capital-structure matters tied to its regulated utility business.
The filing record identifies registered securities including DUK common stock, junior subordinated debentures, depositary shares representing Series A preferred stock, and senior notes listed on the New York Stock Exchange. SEC reports also reference major subsidiaries such as Duke Energy Carolinas, Duke Energy Progress, Duke Energy Florida, Duke Energy Ohio, Duke Energy Indiana and Piedmont Natural Gas, along with disclosures on infrastructure investment, generation resources, regulatory matters and risk factors.
Jeffrey B. Guldner, a director of Duke Energy Corp (ticker shown in filing as DUK; metadata: DUKB), reported a non-derivative acquisition on 09/15/2025. The filing shows 1,005 Restricted Stock Unit deferrals credited under a Director Savings Plan, converting 1-for-1 to common stock and valued at $122.37 per share. The 1,005 shares are reported as directly beneficially owned and are generally payable upon the reporting person’s termination of service. The Form 4 was signed by an attorney-in-fact on 09/16/2025.
Jeffrey B. Guldner, identified as a director of Duke Energy Corp, submitted an initial Section 16 Form 3 stating he does not beneficially own any securities of the issuer. The filing indicates it was submitted as an individual filing and executed on Guldner's behalf by an attorney-in-fact, David S. Maltz. No classes of common stock, options, or other derivative holdings are reported on this Form 3.