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.
Duke Energy director Annette K. Clayton received 1,602 Director Savings Plan Restricted Stock Unit deferrals on Common Stock, treated as a grant or award. These units convert to common stock on a 1‑for‑1 basis and are generally payable upon her termination of service. Following this award, she directly holds 20,271 such units.
Duke Energy director Idalene Fay Kesner received a grant of 1,602 Director Savings Plan Restricted Stock Unit deferrals on Common Stock at a reference price of $124.87 per unit. After this award, she holds 12,938 units directly. Each unit converts into one share of Common Stock and is generally payable upon her termination of service, with no stated expiration date.
Fidelity Brokerage Services LLC notified a proposed sale of 3,500 shares of common stock of DUK with an aggregate offering price of $438,025.00 (coverage shows NYSE, CUSIP 779596217, trade date 05/11/2026). The filing lists restricted stock vesting of 394 shares (vested 02/23/2025) and 3,106 shares (vested 02/05/2026) as compensation. The excerpt also shows a prior sale of 6,800 shares by Louis E. Renjel Jr on 02/12/2026 for $868,156.68.
Fidelity Brokerage Services LLC filed a Form 144 reporting a proposed sale of 20,000 shares of Common Stock on the NYSE with an aggregate offering price of $2,487,423.08, dated 05/08/2026. The notice lists several restricted stock vesting lots to be sold by the issuer, including 6,626 shares vesting 02/07/2025 and 4,740 shares vesting 02/26/2026.
Duke Energy Corporation reported stronger quarterly results for the three months ended March 31, 2026. Total operating revenues rose to $9,178 million from $8,249 million a year earlier, driven mainly by higher regulated electric and natural gas revenues. Net income available to common stockholders increased to $1,536 million, with basic and diluted earnings per share improving to $1.97 from $1.76.
Operating income grew to $2,725 million, helped by higher revenues and a $384 million gain on sales of other assets and other, net. Cash provided by operating activities was $1,512 million, while capital expenditures reached $4,088 million as the company continued significant investment in its grid and generation assets.
Duke also executed major portfolio moves. It closed the first tranche of a minority investment in Florida Progress, issuing 9.19% of membership interests for about $2.8 billion in cash, the first step toward a planned $6 billion, 19.7% stake sale to an affiliate of Brookfield. In a separate deal, Piedmont completed the sale of its Tennessee natural gas business to Spire Inc. for approximately $2.5 billion, generating sizable gains and supporting debt reduction and funding of Duke’s broader capital plan.
Duke Energy Corporation reported strong first-quarter 2026 results, with reported EPS of $1.97 and adjusted EPS of $1.93, up from $1.76 a year ago. Revenue rose to $9.18 billion from $8.25 billion as both electric and gas utility operations grew.
Electric Utilities and Infrastructure delivered adjusted segment income of $1,404 million, while Gas Utilities and Infrastructure produced $361 million. Duke Energy closed $5.3 billion of strategic transactions, lifting gains on asset sales, and reaffirmed 2026 adjusted EPS guidance of $6.55 to $6.80 and a 5%–7% long-term growth rate through 2030.
Piedmont Natural Gas Company, Inc. filed a Post-Effective Amendment to its Form S-3 shelf to include Piedmont as an additional registrant and to file a prospectus for the offering of debt securities to be issued from time to time. The prospectus, dated May 4, 2026, registers an unspecified amount of senior and subordinated unsecured debt to be sold in one or more series and sets forth general terms to be specified in prospectus supplements. The amendment states it becomes effective immediately upon filing pursuant to Rule 462(e). The filing also discloses that Piedmont completed the sale of its Tennessee LDC business to Spire for $2.48 billion in cash on March 31, 2026, and provides operational context including approximately 25,300 miles of distribution and transmission pipelines and 19,900 miles of service lines as of December 31, 2025.
Vanguard Capital Management reports beneficial ownership of 58,721,742 shares of Duke Energy Corp. The filing states this equals 7.54% of the class as of 03/31/2026 and shows sole dispositive power over 58,721,742 shares and sole voting power over 8,195,139 shares. The filing is a Schedule 13G, signed 04/29/2026.
Duke Energy Corporation updated its PremierNotes pricing supplement to transition to a single investment tier, effective April 13, 2026. As of that date the Notes will pay the same floating interest rate for all invested amounts: 3.82% yield / 3.75% rate. The Registration Statement (No. 333-290634) was automatically effective on September 30, 2025.
Duke Energy director Idalene Fay Kesner received a grant of 257 Director Savings Plan Restricted Stock Unit Deferrals tied to the company’s common stock. The units are valued at $131.41 per share and convert to common stock on a 1-for-1 basis.
These deferred stock units are generally payable when Kesner’s board service ends, aligning her compensation with long-term shareholder interests. Following this grant, she holds a total of 12,933 such units directly.