PEABODY ENERGY CORP 10-Q

Item 5. Other Information. Securities Trading Plans of Directors and Executive Officers On February 10, 2026 , James C. Grech , President & Chief Executive Officer and a member of the Company’s Board of Directors, adopted a Rule 10b5-1 trading arrangement (as such term is defined in Item 408 of Regulation S-K), which is designed to be in effect until December 31, 2027, subject to customary exceptions. Mr. Grech’s Rule 10b5-1 trading arrangement calls for the sale of up to 54,500 shares, subject to certain conditions. On February 23, 2026 , Scott T. Jarboe , Chief Administrative Officer and Corporate Secretary , adopted a Rule 10b5-1 trading arrangement (as such term is defined in Item 408 of Regulation S-K), which is designed to be in effect until January 31, 2028, subject to customary exceptions. Mr. Jarboe’s Rule 10b5-1 trading arrangement calls for potential sales of a percentage of shares that he could receive upon the future vesting of certain outstanding equity awards, net of any shares withheld by Peabody to satisfy applicable taxes. The number of shares to be withheld, and thus the exact maximum number of shares to be sold pursuant to Mr. Jarboe’s Rule 10b5-1 trading arrangement, can only be determined upon the occurrence of the future vesting events. For purposes of this disclosure, without subtracting any shares to be withheld upon future vesting events, the maximum aggregate number of shares to be sold pursuant to Mr. Jarboe’s Rule 10b5-1 trading arrangement is 45,545 . Except as set forth above, during the three months ended March 31, 2026, none of Peabody’s directors or officers adopted or terminated a “Rule 10b5-1 trading arrangement” or “non-Rule 10b5-1 trading arrangement,” as these terms are defined in Item 408 of Regulation S-K of the Exchange Act. Item 6. Exhibits. See Exhibit Index on following pages. 44 Table of Contents EXHIBIT INDEX The exhibits below are numbered in accordance with the Exhibit Table of Item 601 of Regulation S-K. Exhibit No. Description of Exhibit 31.1† Certification of periodic financial report by the Registrant’s Chief Executive Officer pursuant to Rule 13a-14(a) under the Securities Exchange Act of 1934, as amended pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 . 31.2† Certification of periodic financial report by the Registrant’s Chief Financial Officer pursuant to Rule 13a-14(a) under the Securities Exchange Act of 1934, as amended pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 . 32.1† Certification of periodic financial report pursuant to 18 U.S.C. Section 1350, adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, by the Registrant’s Chief Executive Officer . 32.2† Certification of periodic financial report pursuant to 18 U.S.C. Section 1350, adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, by the Registrant’s Chief Financial Officer . 95† Mine Safety Disclosure required by Item 104 of Regulation S-K . 101.INS Inline XBRL Instance Document - the instance document does not appear in the interactive data file because XBRL tags are embedded within the Inline XBRL document 101.SCH Inline XBRL Taxonomy Extension Schema Document 101.CAL Inline XBRL Taxonomy Extension Calculation Linkbase Document 101.DEF Inline XBRL Taxonomy Extension Definition Linkbase Document 101.LAB Inline XBRL Taxonomy Extension Label Linkbase Document 101.PRE Inline XBRL Taxonomy Extension Presentation Linkbase Document 104 Cover Page Interactive Data File (embedded within the Inline XBRL document). † Filed herewith. 45 Table of Contents 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 thereunto duly authorized. PEABODY ENERGY CORPORATION Date: May 6, 2026 By: /s/ MARK A. SPURBECK Mark A. Spurbeck Executive Vice President and Chief Financial Officer (On behalf of the registrant and as Principal Financial Officer) 46