Results of Operations and Financial Condition. On August 7, 2026, Vistra Corp. (the “Company”) issued a news release announcing, among other matters, its financial results for the quarter ended June 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

Entry into a Material Definitive Agreement. Accounts Receivable Securitization Facility On July 10, 2026, TXU Energy Retail Company LLC (“TXU Retail”), TXU Energy Receivables Company LLC (“TXU Receivables”), a wholly owned subsidiary of TXU Retail, and Vistra Operations Company LLC (“Vistra Operations”), each of which are indirect, wholly owned subsidiaries of Vistra Corp., entered into an amendment (the “RPA Amendment”) to the Receivables Purchase Agreement dated as of August 21, 2018 (as am…

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 On July 14, 2026, Vistra Corp. (the “Company” or “Vistra”) received its results from the PJM Capacity Auction for planning year 2028/2029. The Company cleared a total of approximately 10,924 megawatts (MW) in the auction at a weighted average clearing price of $325.00 per megawatt-day. The table below lists Vistra’s cleared capacity and associated clearing price for the 2028/2029 capacity auction by zone. Zone Clearing Price ($/MW-d) Total MWs Cleared RTO $ 325.00 4,129.90 COMED…

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

Entry into Material Definitive Agreements. On June 24, 2026, Vistra Operations Company LLC (“Vistra Operations”) (as Borrower), an indirect, wholly owned subsidiary of Vistra Corp. (the “Company”), entered into (a) an amendment (the “Credit Agreement Amendment”) among Vistra Operations, the lenders party thereto, the letter of credit issuers party thereto, the cash management bank party thereto, Citibank, N.A., as Administrative and Collateral Agent, and the other parties named therein, which…

Results of Operations and Financial Condition. On May 7, 2026, Vistra Corp. (the “Company”) issued a news release announcing, among other matters, its financial results for the quarter ended March 31, 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

Entry into a Material Definitive Agreement. On April 22, 2026, Vistra Operations Company LLC (“Vistra Operations” or the “Issuer”), an indirect, wholly owned subsidiary of Vistra Corp., a Delaware corporation (the “Company” or “Vistra”), completed its previously announced private offering (the “Offering”) of $4.0 billion aggregate principal amount of the Issuer’s senior notes, consisting of $500.0 million aggregate principal amount of the Issuer’s 4.550% senior notes due 2028 (the “2028 Notes…

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

Results of Operations and Financial Condition. On February 26, 2026, Vistra Corp. (the “Company”) issued a news release announcing, among other matters, its financial results for the quarter and year ended December 31, 2025. 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

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

Entry into a Material Definitive Agreement. On January 22, 2026, Vistra Operations Company LLC (“Vistra Operations” or the “Issuer”), an indirect, wholly owned subsidiary of Vistra Corp., a Delaware corporation (the “Company” or “Vistra”), completed its previously announced private offering (the “Offering”) of $2.250 billion aggregate principal amount of the Issuer’s senior secured notes, consisting of $1.0 billion aggregate principal amount of the Issuer’s 4.700% senior secured notes due 203…

Regulation FD Disclosure. In January 2026, Vistra Corp. (“Vistra” or the “Company”) announced that it has entered into 20-year power purchase agreements (“PPAs”) with Meta Platforms, Inc. (“Meta”), pursuant to which the Company has agreed to supply Meta with a total of 2,609 MW of carbon-free power and capacity from the Company’s PJM nuclear power plants as follows: • 1,268 MW of energy and capacity from the Company’s operating Perry Nuclear Power Plant (“Perry”) and 908 MW of energy and capa…

The shares of Vistra common stock comprising the Stock Consideration will be issued in reliance on the exemption from registration requirements provided by Section 4(a)(2) of the Securities Act of 1933, as amended (the “Securities Act”) to a person who is an “accredited investor” as that term is defined in Rule 501 of Regulation D promulgated by the SEC, without the use of any general solicitation or advertising to market or otherwise offer the securities for sale. Vistra will rely upon repre…

Entry into a Material Definitive Agreement Transaction Agreements On December 31, 2025, Vistra Operations Company LLC, a Delaware limited liability company (“Buyer”) and an indirect wholly owned subsidiary of Vistra Corp. (“Vistra”), and, for the limited purposes set forth therein, Vistra, entered into a Purchase and Sale Agreement (the “Purchase Agreement”) with Q-Generation Holdings, LLC (the “Seller”). Under the Purchase Agreement, Buyer has agreed to acquire from Seller one hundred percen…

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 Exchange Act. Forward Looking Statements The information presented herein includes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements, which are based on current expectations, estimates and projections about the industry and markets in which Vistra operates and beliefs of and assu…

Other Events On December 17, 2025, Vistra Corp. (the “Company” or “Vistra”) received its results from the PJM Capacity Auction for planning year 2027/2028. The company cleared a total of approximately 10,566 megawatts (MW) in the auction at a weighted average clearing price of $333.44 per megawatt-day. The table below lists Vistra’s cleared capacity and associated clearing price for the 2027/2028 capacity auction by zone. Zone Clearing Price ($/MW-d) Total MWs Cleared RTO $ 333.44 3,975.5 COM…

Results of Operations and Financial Condition. On November 6, 2025, Vistra Corp. (the “Company”) issued a news release announcing, among other matters, its financial results for the quarter ended September 30, 2025. 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

Completion of Acquisition or Disposition of Assets On October 22, 2025, Vistra Operations Company LLC, a Delaware limited liability company (“ Buyer ”), which is an indirect wholly-owned subsidiary of Vistra Corp., a Delaware corporation (“ Vistra ”), completed its previously announced transaction pursuant to that certain Purchase and Sale Agreement dated as of May 15, 2025 (the “ Purchase Agreement ”), by and among Buyer, and NEP Holdco 1, L.L.C., a Delaware limited liability company, NatGas…

Entry into a Material Definitive Agreement. On October 10, 2025, Vistra Operations Company LLC (“Vistra Operations” or the “Issuer”), an indirect, wholly owned subsidiary of Vistra Corp., a Delaware corporation (the “Company” or “Vistra”), completed its previously announced private offering (the “Offering”) of $2 billion aggregate principal amount of the Issuer’s senior secured notes, consisting of $750 million aggregate principal amount of 4.300% senior secured notes due 2028 (the “2028 Note…

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

Entry into a Material Definitive Agreement. On October 1, 2025, Vistra Operations Company LLC ( “Borrower”), an indirect, wholly owned subsidiary of Vistra Corp. (the “Company”), entered into an amendment (the “Credit Agreement Amendment”) to that certain credit agreement (as amended, including by the Credit Agreement Amendment, the “Commodity Linked Credit Agreement”), dated as of February 4, 2022, by and among Borrower, Vistra Intermediate Company LLC (“Vistra Intermediate”), Citibank, N.A.…

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

Other Events On September 29, 2025, Vistra Corp. (“Vistra” or the “Company”) announced that it has entered into a 20-year power purchase agreement (with options to extend for up to an additional 20 years) (the “PPA”) with a large, investment grade company (the “Customer”), pursuant to which the Company has agreed to supply to the Customer 1,200 MW of carbon-free power from the Comanche Peak Nuclear Power Plant. Vistra anticipates power delivery to begin in the fourth quarter of 2027 and ramp…

Results of Operations and Financial Condition. On August 7, 2025, Vistra Corp. (the “Company”) issued a news release announcing, among other matters, its financial results for the quarter ended June 30, 2025. 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