Accordingly, the information contained in the press release shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

CEO — Daniel E. Brown: The filing announces the appointment of an external candidate as President and CEO, which is a significant management change but not a departure of a sitting executive.

Chief Accounting Officer — Sarah Grose: The filing announces the internal promotion of Sarah Grose to Vice President and Chief Accounting Officer, ending the interim arrangement for the CFO.

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information set forth in

Entry into a Material Definitive Agreement. On October 6, 2026, Expand Energy Corporation (the “Company”) entered into Amendment No. 1 (the “Amendment”) to that certain Amended and Restated Credit Agreement, dated as of September 30, 2025 (as amended, the “Credit Agreement”), by and among the Company, the lenders party thereto and JPMorgan Chase Bank, N.A., as administrative agent. The Amendment extends the maturity date of the credit facility under the Credit Agreement by one year, from Sept…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The information set forth in

Other Events. In connection with closing of the Notes Offering, the Company is filing the legal opinions of Kirkland & Ellis LLP, regarding the enforceability of the Notes issued in the Notes Offering, and McAfee & Taft A Professional Corporation, regarding the legality of the Notes issued in the Notes Offering, attached as Exhibits 5.1 and 5.2, respectively, hereto, to incorporate such opinions by reference into the Shelf Registration Statement. 2

Entry into a Material Definitive Agreement. On September 17, 2026, Expand Energy Corporation (the “Company”) completed its previously announced underwritten public offering (the “Notes Offering”) of $500,000,000 aggregate principal amount of its 5.650% Senior Notes due 2031 (the “Notes”). The Notes have been registered under the Securities Act of 1933, as amended (the “Act”), pursuant to a registration statement on Form S-3 (No. 333-283348), filed with the Securities and Exchange Commission (…

Executive Vice President — Dan Turco: The executive is not leaving the company but is changing roles to focus on LNG and gas marketing integration following an acquisition.

Other Events. On September 16, 2026, the Company completed its previously announced acquisition of Twin Eagle Holdings N.A., LLC. SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. EXPAND ENERGY CORPORATION By: /s/ CHRIS LACY Chris Lacy Executive Vice President, General Counsel and Corporate Secretary Date: September 16, 2026

Entry into a Material Definitive Agreement. On September 15, 2026, Expand Energy Corporation (the “Company”) entered into an underwriting agreement (the “Underwriting Agreement”) with Citigroup Global Markets Inc. and J.P. Morgan Securities LLC, as representatives of the several underwriters named in Schedule 1 to the Underwriting Agreement (the “Underwriters”), with respect to the issuance and sale in an underwritten public offering (the “Offering”) by the Company of $500,000,000 aggregate p…

Other Events. As previously announced, on July 24, 2026, Expand Energy Corporation (the "Company") entered into an Agreement and Plan of Merger (the "Merger Agreement") with Twin Eagle N.A., LLC ("Twin Eagle"), Eikon AW Holdings, LLC, a wholly owned subsidiary of the Company ("Merger Sub"), and TERM Holdings, LLC, solely in its capacity as representative of the members of Twin Eagle (the "Seller Representative"). Twin Eagle and its subsidiaries (together, the "Acquired Entities") operate a le…

Accordingly, the information contained in the press release shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Vice President – Accounting & Controller — Gregory M. Larson: Mr. Larson resigned from his position without a named successor.

Accordingly, the information contained in the press release shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Director — John D. Gass: Mr. Gass will not stand for re-election and will retire from the Board at the conclusion of the Annual Meeting.

Chief Financial Officer — Marcel Teunissen: The Company appointed Marcel Teunissen as the Executive Vice President and Chief Financial Officer.

Accordingly, the information contained in the press release shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

President and Chief Executive Officer — Domenic (Nick) J. Dell’Osso, Jr.: Mr. Dell’Osso resigned as CEO and from the Board, with Mr. Wichterich appointed as Interim President and Chief Executive Officer.

Accordingly, the information contained in the press release shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Entry into a Material Definitive Agreement. On September 30, 2025 (the “Effective Date”), Expand Energy Corporation (“Expand” or the “Company”) entered into an amended and restated credit agreement (the “Credit Agreement”) with the lenders and issuing banks party thereto (the “Lenders”), and JPMorgan Chase Bank, N.A., as administrative agent (in such capacity, the “Administrative Agent”), providing for an unsecured revolving credit facility (the “Credit Facility”) with initial aggregate commi…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant. The description of the Credit Agreement set forth in

Chief Financial Officer — Mohit Singh: Mr. Singh is departing the company to pursue other interests.

Accordingly, the information contained in the press release shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

Accordingly, the information contained in the press release shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended (the “Securities Act”), or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.