Welcome to our dedicated page for Duke Energy SEC filings (Ticker: DUKB), 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 issuer behind DUKB, the company’s 5.625% Junior Subordinated Debentures due September 15, 2078. The records identify Duke Energy’s registered securities, including common stock, preferred depositary shares, senior notes and the DUKB junior subordinated debentures, and include material-event disclosures and capital-structure information.
Proxy and current-report filings also describe governance and annual meeting matters for Duke Energy and reference its regulated utility and natural gas subsidiaries, including Duke Energy Carolinas, Duke Energy Progress, Duke Energy Florida, Duke Energy Ohio, Duke Energy Indiana and Piedmont Natural Gas. These disclosures cover shareholder voting matters, board and governance topics, operating-company structure, energy infrastructure investment, generation resources and related risk and regulatory subjects.
Duke Energy Carolinas reached a partial settlement in its South Carolina base rate case with the Office of Regulatory Staff and other parties, subject to review and approval by the PSCSC. The agreement sets a return on equity of 9.99% with a capital structure of 53% equity/47% debt, yielding an overall rate of return of 7.4%. It reflects a South Carolina retail rate base of $7.9 billion and provides for nuclear and other production tax credits to flow back to customers.
Key elements supported in the case include an annual storm reserve funding increase to $10 million and an annual pension cost rider. An evidentiary hearing to consider the settlement and remaining issues is scheduled to commence on November 13, 2025.
Duke Energy Corporation reports higher results for the quarter ended September 30, 2025. Total operating revenues rose to $8,542 million from $8,154 million a year earlier, driven mainly by regulated electric revenue of $8,106 million. Net income attributable to Duke Energy increased to $1,421 million, and net income available to common stockholders reached $1,407 million versus $1,226 million.
For the first nine months of 2025, revenues were $24,299 million compared with $22,997 million, while net income available to common stockholders rose to $3,743 million from $3,211 million. Basic and diluted EPS grew to $1.81 for the quarter and $4.81 year‑to‑date, up from $1.60 and $4.17. Operating cash flow was $8,672 million and capital expenditures were $9,881 million. At September 30, 2025, total assets were $192,293 million, long‑term debt was $79,301 million, and total equity was $52,627 million. Duke Energy had 777,661,224 common shares outstanding as of October 31, 2025.
Duke Energy Corporation filed a shelf registration (Form S-3) registering unspecified amounts of common stock, preferred stock, depositary shares, stock purchase contracts and units, and various debt securities to be offered from time to time by Duke Energy and several subsidiaries. The registration covers offerings by Duke Energy Corporation and six subsidiaries with securities to be sold separately or together; specific terms and amounts will be provided in prospectus supplements.
The filing describes Duke Energy's business segments, reporting that its Electric Utilities and Infrastructure segment serves approximately 8.6 million customers across about 90,000 square miles, and that the Gas Utilities and Infrastructure segment serves over 1.7 million customers. The prospectus discloses that certain mortgage bonds will be secured by substantially all properties, while other debt securities may be unsecured, and it highlights that holders of debt securities may be junior to creditors of operating subsidiaries. The filing reiterates incorporated-by-reference SEC reports for further detail.
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.
Duke Energy Corporation has appointed Jeffrey Guldner to its Board of Directors, effective September 15, 2025, with an initial term running through the 2026 Annual Meeting of Shareholders. He will also serve on the Compensation and People Development Committee and the Finance and Risk Management Committee.
Guldner recently retired as chairman, president and CEO of Pinnacle West Capital Corporation and its primary subsidiary, Arizona Public Service Company, after five years in that role, and previously practiced energy and utility law and served as a U.S. Navy surface warfare officer. Duke Energy’s Board has determined he is independent under the company’s standards, New York Stock Exchange listing requirements, and SEC rules. As a non-employee director, he will receive a pro-rated mix of cash and stock retainers under Duke Energy’s director compensation program and is subject to stock ownership guidelines targeting $675,000 in company stock or retention of half of his vested annual equity retainer.