VST: Financial results

Item 2.02. Results of Operations and Financial Condition. On November 6, 2026, Vistra Corp. (the “Company”) issued a news release announcing, among other matters, its financial results for the quarter ended September 30, 2026. A copy of such news release is furnished herewith as Exhibit 99.1 to this Current Report on Form 8-K. In accordance with General Instruction B.2 of Form 8-K, the information set forth in this Item 2.02 and in the attached Exhibit 99.1 is deemed to be furnished and shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Item 9.01. Financial Statements and Exhibits. (d) Exhibits. Exhibit No. Description 99.1 News release dated November 6, 2026 104 The cover page from this Current Report on Form 8-K, formatted in Inline XBRL SIGNATURES 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. Vistra Corp. Dated: November 6, 2026 /s/ Margaret Montemayor Name: Margaret Montemayor Title: Senior Vice President and Chief Accounting Officer