VSTWF / Vast Renewables Limited - Equity Warrant - Zgłoszenia SEC, Raport roczny, o pełnomocnictwie

SIXTEENTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES

Exhibit 4.8 SIXTEENTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES SIXTEENTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of February 25, 2026, among the subsidiary guarantors listed on Schedule 1 hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilming

TWENTY-FOURTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES

Exhibit 4.6 TWENTY-FOURTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES TWENTY-FOURTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of February 25, 2026, among the subsidiary guarantors listed on Schedule 1 hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and

FOURTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES

Exhibit 4.11 FOURTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES FOURTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of February 25, 2026, among the subsidiary guarantors listed on Schedule 1 hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmington T

SIXTEENTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES

Exhibit 4.7 SIXTEENTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES SIXTEENTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of February 25, 2026, among the subsidiary guarantors listed on Schedule 1 hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilming

Mine Safety Disclosures

Exhibit 95.1 Mine Safety Disclosures Safety is a top priority in all our businesses, and accordingly, it is a key component of our focus on operational excellence, our employee performance reviews and employee compensation. Our health and safety program objectives are to prevent workplace accidents and ensure that all employees return home safely and comply with all regulations. Vistra currently o

EIGHTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES

Exhibit 4.12 EIGHTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES EIGHTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of February 25, 2026, among the subsidiary guarantors listed on Schedule 1 hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company” ), the other subsidiary guarantors party hereto and The Bank of

SIXTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES

Exhibit 4.10 SIXTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES SIXTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as February 25, 2026, among the subsidiary guarantors listed on Schedule 1 hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmington Trust,

TENTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES

Exhibit 4.9 TENTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES TENTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of February 25, 2026, among the subsidiary guarantors listed on Schedule 1 hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmington Trus

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2026 — OR — ☐ TRANSITION REPORT PURSU

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2026 — OR — ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38086

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 7, 2026 VISTRA CORP. (Exact nam

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 7, 2026 VISTRA CORP.

Vistra Reports First Quarter 2026 Results

Vistra Reports First Quarter 2026 Results Earnings Release Highlights •GAAP first quarter 2026 Net Income of $1,029 million, including an unrealized gain from hedges expected to settle in future years of $723 million, and Ongoing Operations Adjusted EBITDA1 of $1,494 million.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 29, 2026 VISTRA CORP. (Exac

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 29, 2026 VISTRA CORP. (Exact name of registrant as specified in its charter) Delaware 001-38086 36-4833255 (State or other jurisdiction of incorporation or organization) (Commis

REGISTRATION RIGHTS AGREEMENT

Exhibit 4.11 REGISTRATION RIGHTS AGREEMENT This REGISTRATION RIGHTS AGREEMENT dated April 22, 2026 (this “Agreement”) is entered into by and among Vistra Corp., a Delaware corporation (“Parent”), Vistra Operations Company LLC, a Delaware limited liability company and indirect wholly owned subsidiary of Parent (the “Company”), the Guarantors (as defined below) and Citigroup Global Markets Inc., Cre

VISTRA OPERATIONS COMPANY LLC, as Issuer 4.550% SENIOR NOTES DUE 2028 5.000% SENIOR NOTES DUE 2031 5.250% SENIOR NOTES DUE 2033 5.550% SENIOR NOTES DUE 2036 SUPPLEMENTAL INDENTURE Dated as of April 22, 2026 Wilmington Trust, National Association, as

Exhibit 4.2 VISTRA OPERATIONS COMPANY LLC, as Issuer 4.550% SENIOR NOTES DUE 2028 5.000% SENIOR NOTES DUE 2031 5.250% SENIOR NOTES DUE 2033 5.550% SENIOR NOTES DUE 2036 SUPPLEMENTAL INDENTURE Dated as of April 22, 2026 Wilmington Trust, National Association, as Trustee TABLE OF CONTENTS Page Article 1 DEFINITIONS AND INCORPORATION BY REFERENCE Section 1.01 Definitions. 1 Section 1.02 Other Definit

VISTRA OPERATIONS COMPANY LLC, as Issuer Dated as of April 22, 2026 Wilmington Trust, National Association, as Trustee CROSS-REFERENCE TABLE This Cross-Reference Table is not part of the Indenture.

Exhibit 4.1 VISTRA OPERATIONS COMPANY LLC, as Issuer INDENTURE Dated as of April 22, 2026 Wilmington Trust, National Association, as Trustee CROSS-REFERENCE TABLE This Cross-Reference Table is not part of the Indenture. Trust Indenture Act Section Indenture Section 310(a)(1) 7.09 (a)(2) 7.09 (a)(3) N.A. (a)(4) N.A. (a)(5) 7.09 (b) 7.09 311(a) 7.11 (b) 7.11 312(a) 2.05 (b) 12.15 (c) 12.15 313(a) 7.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 22, 2026 VISTRA CORP. (Exact

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 22, 2026 VISTRA CORP.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) x Defin

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) o Defin

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6555 Sierra Drive, Irving, Texas 75039 I www.vistracorp.com ANNUAL REPORT 2025 2025 ANNUAL REPORT 6555 Sierra Drive, Irving, Texas 75039 I www.vistracorp.com ANNUAL REPORT 2025 2025 ANNUAL REPORT 6555 Sierra Drive, Irving, Texas 75039 I www.vistracorp.com ANNUAL REPORT 2025 2025 ANNUAL REPORTIn 2025, Vistra advanced its disciplined growth strategy with the acquisition of a portfolio of seven natur

SEVENTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES

Exhibit 4.143 SEVENTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES SEVENTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of November 14, 2025, among the subsidiary guarantors listed on Schedule 1 hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company” ), the other subsidiary guarantors party hereto and The Bank

SECOND SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEE

Exhibit 4.81 SECOND SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEE SECOND SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of August 25, 2025, among BlueGen 1 LLC, a Delaware limited liability company (the “Guaranteeing Subsidiary”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmington Trust, N

FIFTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES

Exhibit 4.90 FIFTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES FIFTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as November 14, 2025, among the subsidiary guarantors listed on Schedule 1 hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmington Trust,

Significant Subsidiaries of Vistra Corp. As of December 31, 2025 SUBSIDIARY STATE OR COUNTRY OF INCORPORATION OR ORGANIZATION 1 Ambit Energy Holdings, LLC Texas 2 Ambit Holdings, LLC Texas 3 Ambit Texas, LLC Texas 4 Comanche Peak Power Company LLC De

Exhibit 21.1 Significant Subsidiaries of Vistra Corp. As of December 31, 2025 SUBSIDIARY STATE OR COUNTRY OF INCORPORATION OR ORGANIZATION 1 Ambit Energy Holdings, LLC Texas 2 Ambit Holdings, LLC Texas 3 Ambit Texas, LLC Texas 4 Comanche Peak Power Company LLC Delaware 5 Crius Energy, LLC Delaware 6 Crius Energy Holdings, LLC Delaware 7 Dynegy Coal Holdco, LLC Delaware 8 Dynegy Energy Services (Ea

FIFTEENTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES

Exhibit 4.36 FIFTEENTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES FIFTEENTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of November 14, 2025, among the subsidiary guarantors listed on Schedule 1 hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmin

THIRD SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES

Exhibit 4.82 THIRD SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES THIRD SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of November 14, 2025, among the subsidiary guarantors listed on Schedule 1 hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmington Tru

FOURTEENTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEE

Exhibit 4.35 FOURTEENTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEE FOURTEENTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of August 25, 2025, among BlueGen 1 LLC, a Delaware limited liability company (the “Guaranteeing Subsidiary”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmington

FIFTEENTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES

Exhibit 4.18 FIFTEENTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES FIFTEENTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of November 14, 2025, among the subsidiary guarantors listed on Schedule 1 hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmin

Mine Safety Disclosures

Exhibit 95.1 Mine Safety Disclosures Safety is a top priority in all our businesses, and accordingly, it is a key component of our focus on operational excellence, our employee performance reviews and employee compensation. Our health and safety program objectives are to prevent workplace accidents and ensure that all employees return home safely and comply with all regulations. Vistra currently o

NINTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES

Exhibit 4.102 NINTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES NINTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of November 14, 2025, among the subsidiary guarantors listed on Schedule 1 hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmington Tr

FOURTEENTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEE

Exhibit 4.17 FOURTEENTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEE FOURTEENTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of August 25, 2025, among BlueGen 1 LLC, a Delaware limited liability company (the “Guaranteeing Subsidiary”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmington

TWENTY-SECOND SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES

Exhibit 4.75 TWENTY-SECOND SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES TWENTY-SECOND SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of November 14, 2025, among the subsidiary guarantors listed on Schedule 1 hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto an

EIGHTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEE

Exhibit 4.101 EIGHTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEE EIGHTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of August 25, 2025, among BlueGen 1 LLC, a Delaware limited liability company (the “Guaranteeing Subsidiary”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmington Trust,

1

Exhibit 19.1 VISTRA CORP. TRANSACTIONS IN VISTRA CORP. SECURITIES I.SCOPE The Transactions in Vistra Corp. Securities Policy (this “Policy”) describes the obligations and responsibilities of all Affected Persons (as defined below) subject to this Policy with regard to transactions in the Vistra Securities (as defined below) of Vistra Corp. (the “Company” or “Vistra,” together with its subsidiaries

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2025 — OR — ☐ TRANSITION REPORT PURSUANT T

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2025 — OR — ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38086 Vistra Corp. (Exact na

FOURTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEE

Exhibit 4.89 FOURTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEE FOURTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as August 25, 2025, among BlueGen 1 LLC, a Delaware limited liability company (the “Guaranteeing Subsidiary”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmington Trust, Nati

TWENTIETH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEE

Exhibit 4.68 TWENTIETH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEE TWENTIETH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of August 25, 2025, among BlueGen 1 LLC, a Delaware limited liability company (the “Guaranteeing Subsidiary”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmington Tr

SIXTH SUPPLEMENTAL INDENTURE ADDITIONAL SUBSIDIARY GUARANTEE

Exhibit 4.142 SIXTH SUPPLEMENTAL INDENTURE ADDITIONAL SUBSIDIARY GUARANTEE SIXTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of August 25, 2025, among BlueGen 1 LLC, a Delaware limited liability company (the “Guaranteeing Subsidiary”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company” ), the other subsidiary guarantors party hereto and The Bank

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 26, 2026 VISTRA CORP. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 26, 2026 VISTRA CORP.

Vistra Reports Fourth Quarter and Full-Year 2025 Results

EX-99.1 Exhibit 99.1 Vistra Reports Fourth Quarter and Full-Year 2025 Results Earnings Release Highlights • GAAP full-year 2025 Net Income of $944 million, including an unrealized loss from hedges expected to settle in future years of $808 million, and Cash Flow from Operations of $4,070 million. • Ongoing Operations Adjusted EBITDA1 of $5,912 million and Ongoing Operations Adjusted FCFbG1 of $3,5

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 22, 2026 VISTRA CORP. (Exac

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 22, 2026 VISTRA CORP.

VISTRA OPERATIONS COMPANY LLC, as Issuer 4.700% SENIOR SECURED NOTES DUE 2031 5.350% SENIOR SECURED NOTES DUE 2036 TWENTY-THIRD SUPPLEMENTAL INDENTURE Dated as of January 22, 2026 Wilmington Trust, National Association as Trustee

EX-4.2 Exhibit 4.2 VISTRA OPERATIONS COMPANY LLC, as Issuer 4.700% SENIOR SECURED NOTES DUE 2031 5.350% SENIOR SECURED NOTES DUE 2036 TWENTY-THIRD SUPPLEMENTAL INDENTURE Dated as of January 22, 2026 Wilmington Trust, National Association as Trustee TABLE OF CONTENTS Page Article 1 DEFINITIONS AND INCORPORATION BY REFERENCE Section 1.01 Definitions 1 Section 1.02 Other Definitions 25 Section 1.03 R

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 9, 2026 VISTRA CORP. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 9, 2026 VISTRA CORP. (Exact name of registrant as specified in its charter) Delaware 001-38086 36-4833255 (State or other jurisdiction of incorporation or organization) (Commi

PURCHASE AND SALE AGREEMENT by and between Q GENERATION HOLDINGS, LLC, as Seller, VISTRA OPERATIONS COMPANY LLC, as Buyer, VISTRA CORP., as Buyer Parent Dated as of December 31, 2025

EX-2.1 Exhibit 2.1 Execution Version PURCHASE AND SALE AGREEMENT by and between Q GENERATION HOLDINGS, LLC, as Seller, VISTRA OPERATIONS COMPANY LLC, as Buyer, and VISTRA CORP., as Buyer Parent Dated as of December 31, 2025 TABLE OF CONTENTS Page ARTICLE I. DEFINITIONS 1 Section 1.1 Certain Definitions 1 Section 1.2 Terms Generally 27 ARTICLE II. PURCHASE AND SALE OF THE COMPANY INTERESTS 29 Secti

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 31, 2025 VISTRA CORP. (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 31, 2025 VISTRA CORP. (Exact name of registrant as specified in its charter) Delaware 001-38086 36-4833255 (State or other jurisdiction of incorporation or organization) (Com

AGREEMENT AND PLAN OF MERGER by and among HAMILTON HOLDINGS II, LLC, as the Company, VISTRA OPERATIONS COMPANY LLC, as Buyer, TSVME LLC, as Merger Sub Q-GENERATION HOLDINGS, LLC, as Company Parent and Members’ Representative Dated as of December 31,

EX-2.2 Exhibit 2.2 Execution Version AGREEMENT AND PLAN OF MERGER by and among HAMILTON HOLDINGS II, LLC, as the Company, VISTRA OPERATIONS COMPANY LLC, as Buyer, TSVME LLC, as Merger Sub and Q-GENERATION HOLDINGS, LLC, as Company Parent and Members’ Representative Dated as of December 31, 2025 TABLE OF CONTENTS Page ARTICLE I. DEFINITIONS 2 Section 1.1 Certain Definitions 2 Section 1.2 Terms Gene

Vistra Adds to its Industry-Leading Generation Portfolio with Acquisition of Cogentrix

EX-99.1 Exhibit 99.1 Vistra Adds to its Industry-Leading Generation Portfolio with Acquisition of Cogentrix Highlights • Acquisition of Cogentrix includes ~5,500 megawatts of modern natural gas generation assets at an attractive purchase price, net of expected tax benefits, of approximately $730/kW of capacity. • Acquisition is expected to deliver mid-single digit Ongoing Operations AFCFbG1 per sh

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 17, 2025 VISTRA CORP. (E

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 17, 2025 VISTRA CORP. (Exact name of registrant as specified in its charter) Delaware 001-38086 36-4833255 (State or other jurisdiction of incorporation or organization) (Com

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 17, 2025 VISTRA CORP. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 17, 2025 VISTRA CORP.

Mine Safety Disclosures

Exhibit 95.1 Mine Safety Disclosures Safety is a top priority in all our businesses, and accordingly, it is a key component of our focus on operational excellence, our employee performance reviews and employee compensation. Our health and safety program objectives are to prevent workplace accidents and ensure that all employees return home safely and comply with all regulations. Vistra currently o

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2025 — OR — ☐ TRANSITION REPORT P

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2025 — OR — ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-3

Vistra Reports Third Quarter 2025 Results, Narrows 2025 Guidance, and Initiates 2026 Guidance

EX-99.1 Exhibit 99.1 Vistra Reports Third Quarter 2025 Results, Narrows 2025 Guidance, and Initiates 2026 Guidance Earnings Release Highlights • Third quarter 2025 GAAP Net Income of $652 million and third quarter Ongoing Operations Adjusted EBITDA1 of $1,581 million. • Narrowed 2025 Ongoing Operations Adjusted EBITDA1 guidance range to $5.7 billion to $5.9 billion and raised the midpoint and narr

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 6, 2025 VISTRA CORP. (Exac

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 6, 2025 VISTRA CORP.

Table 1: Newly Registered Securities

Calculation of Filing Fee Tables S-8 Vistra Corp. Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee 1 Equity Common Stock, $0.01 par value per share Other 1,000,000 $ 190.90 $ 190,900,000.00 0.0001381 $ 26,363.29 Total Offering A

As filed with the Securities and Exchange Commission on October 31, 2025.

S-8 As filed with the Securities and Exchange Commission on October 31, 2025. Registration No. [  ] UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 VISTRA CORP. (Exact Name of Registrant as Specified in its Charter) Delaware 4911 36-4833255 (State or Other Jurisdiction of Incorporation or Organization) (Primar

FOR IMMEDIATE PUBLICATION Vistra Completes Acquisition of Seven Natural Gas Plants, Expanding Diverse Generation Fleet 2,600 megawatts of capacity in key markets enhance company’s ability to meet customer needs

EX-99.1 Exhibit 99.1 FOR IMMEDIATE PUBLICATION Vistra Completes Acquisition of Seven Natural Gas Plants, Expanding Diverse Generation Fleet 2,600 megawatts of capacity in key markets enhance company’s ability to meet customer needs IRVING, Texas — Oct. 22, 2025— Vistra (NYSE: VST) today announced it has completed the acquisition of seven modern natural gas generation facilities totaling approximat

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 22, 2025 VISTRA CORP. (Ex

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 22, 2025 VISTRA CORP. (Exact name of registrant as specified in its charter) Delaware 001-38086 36-4833255 (State or other jurisdiction of incorporation or organization) (Comm

VISTRA OPERATIONS COMPANY LLC, as Issuer 4.300% SENIOR SECURED NOTES DUE 2028 4.600% SENIOR SECURED NOTES DUE 2030 5.250% SENIOR SECURED NOTES DUE 2035 TWENTY-FIRST SUPPLEMENTAL INDENTURE Dated as of October 10, 2025 Wilmington Trust, National Associ

EX-4.2 Exhibit 4.2 VISTRA OPERATIONS COMPANY LLC, as Issuer 4.300% SENIOR SECURED NOTES DUE 2028 4.600% SENIOR SECURED NOTES DUE 2030 5.250% SENIOR SECURED NOTES DUE 2035 TWENTY-FIRST SUPPLEMENTAL INDENTURE Dated as of October 10, 2025 Wilmington Trust, National Association as Trustee TABLE OF CONTENTS Page Article 1 DEFINITIONS AND INCORPORATION BY REFERENCE Section 1.01 Definitions 1 Section 1.0

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 10, 2025 VISTRA CORP. (Exac

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 10, 2025 VISTRA CORP.

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144 0001268406 XXXXXXXX LIVE 0001692819 Vistra Corp. 001-38086 6555 SIERRA DRIVE IRVING TX 75039 214-812-4600 BURKE JAMES A Officer Director Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 21364 4478586.22 338820324 10/10/2025 NYSE Common 10/10/2025 Option Granted - 04/09/2018 Issuer N 21364 10/10/2025 Cash N James A. Burke 6555 Sierra Drive Irving TX 75039 Common 09/10

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144 0001268406 XXXXXXXX LIVE 0001692819 Vistra Corp. 001-38086 6555 SIERRA DRIVE IRVING TX 75039 214-812-4600 BURKE JAMES A Officer Director Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 21365 4434403.42 338820324 10/09/2025 NYSE Common 10/09/2025 Option Granted - 04/09/2018 Issuer N 21365 10/09/2025 Cash N James A. Burke 6555 Sierra Drive Irving TX 75039 Common 09/10

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144 0001268406 XXXXXXXX LIVE 0001692819 Vistra Corp. 001-38086 6555 SIERRA DRIVE IRVING TX 75039 214-812-4600 BURKE JAMES A Officer Director Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 19596 3947261.29 338820324 10/08/2025 NYSE Common 10/08/2025 Option Granted - 04/09/2018 Issuer N 19596 10/08/2025 Cash N James A. Burke 6555 Sierra Drive Irving TX 75039 Common 09/10

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144 0001268406 XXXXXXXX LIVE 0001692819 Vistra Corp. 001-38086 6555 SIERRA DRIVE IRVING TX 75039 214-812-4600 BURKE JAMES A Officer Director Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 21376 4307029.31 338820324 10/07/2025 NYSE Common 10/07/2025 Option Granted 04/09/2018 Issuer N 21376 10/07/2025 Cash N James A. Burke 6555 Sierra Drive Irving TX 75039 Common 09/10/2

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 1, 2025 VISTRA CORP. (Exact

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 1, 2025 VISTRA CORP.

NINTH AMENDMENT TO CREDIT AGREEMENT

EX-10.1 Exhibit 10.1 Execution Version NINTH AMENDMENT TO CREDIT AGREEMENT This NINTH AMENDMENT TO CREDIT AGREEMENT, dated as of October 1, 2025 (including the annexes, schedules, exhibits and other attachments hereto, this “Ninth Amendment”), by and among Vistra Operations Company LLC, a Delaware limited liability company (the “Borrower”), Vistra Intermediate Company LLC, a Delaware limited liabi

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144 0001268406 XXXXXXXX LIVE 0001692819 Vistra Corp. 001-38086 6555 SIERRA DRIVE IRVING TX 75039 214-812-4600 BURKE JAMES A Officer Director Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 21368 4421912.42 338820324 10/06/2025 NYSE Common 10/06/2025 Option Granted 04/09/2018 Issuer N 21368 10/06/2025 Cash N James A. Burke 6555 Sierra Drive Irving TX 75039 Common 09/10/2

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144 0001268406 XXXXXXXX LIVE 0001692819 Vistra Corp. 001-38086 6555 SIERRA DRIVE IRVING TX 75039 214-812-4600 BURKE JAMES A Officer Director Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 21371 4377261.12 338820324 10/03/2025 NYSE Common 10/03/2025 Option Granted 04/09/2018 Issuer N 21371 10/03/2025 Cash N James A. Burke 6555 Sierra Drive Irving TX 75039 Common 09/10/2

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144 0001268406 XXXXXXXX LIVE 0001692819 Vistra Corp. 001-38086 6555 SIERRA DRIVE IRVING TX 75039 214-812-4600 BURKE JAMES A Officer Director Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 21371 4361025.77 338820324 10/02/2025 NYSE Common 10/02/2025 Option Granted 04/09/2018 Issuer N 21371 10/02/2025 Cash N James A. Burke 6555 Sierra Drive Irving TX 75039 Common 09/10/2

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144 0001268406 XXXXXXXX LIVE 0001692819 Vistra Corp. 001-38086 6555 SIERRA DRIVE IRVING TX 75039 214-812-4600 BURKE JAMES A Officer Director Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 19605 3818705.55 338820324 10/01/2025 NYSE Common 10/01/2025 Option Granted - 04/09/2018 Issuer N 19605 10/01/2025 Cash N James A. Burke 6555 Sierra Drive Irving TX 75039 Common 09/10

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144 0001268406 XXXXXXXX LIVE 0001692819 Vistra Corp. 001-38086 6555 SIERRA DRIVE IRVING TX 75039 214-812-4600 BURKE JAMES A Officer Director Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 19596 3905511.14 338820324 09/30/2025 NYSE Common 09/30/2025 Option Granted - 04/09/2018 Issuer N 19596 09/30/2025 Cash N James A. Burke 6555 Sierra Drive Irving TX 75039 Common 09/10

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144 0001268406 XXXXXXXX LIVE 0001692819 Vistra Corp. 001-38086 6555 SIERRA DRIVE IRVING TX 75039 214-812-4600 BURKE JAMES A Officer Director Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 21378 4316995.03 338820324 09/29/2025 NYSE Common 09/29/2025 Option Granted - 04/09/2018 Issuer N 21378 09/29/2025 Cash N James A. Burke 6555 Sierra Drive Irving TX 75039 Common 09/10

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 29, 2025 VISTRA CORP. (

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 29, 2025 VISTRA CORP. (Exact name of registrant as specified in its charter) Delaware 001-38086 36-4833255 (State or other jurisdiction of incorporation or organization) (Co

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144 0001268406 XXXXXXXX LIVE 0001692819 Vistra Corp. 001-38086 6555 SIERRA DRIVE IRVING TX 75039 214-812-4600 BURKE JAMES A Officer Director Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 21376 4300490.44 338820324 09/26/2025 NYSE Common 09/26/2025 Option Granted - 04/09/2018 Issuer N 21376 09/26/2025 Cash N James A. Burke 6555 Sierra Drive Irving TX 75039 Common 09/10

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144 0001268406 XXXXXXXX LIVE 0001692819 Vistra Corp. 001-38086 6555 SIERRA DRIVE IRVING TX 75039 214-812-4600 BURKE JAMES A Officer Director Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 21379 4273632.04 338820324 09/25/2025 NYSE Common 09/25/2025 Options Granted - 10/11/2016 Issuer N 11452 09/25/2025 Cash Common 09/25/2025 Options Granted - 04/09/2018 Issuer N 9927 0

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144 0001268406 XXXXXXXX LIVE 0001692819 Vistra Corp. 001-38086 6555 SIERRA DRIVE IRVING TX 75039 214-812-4600 BURKE JAMES A Officer Director Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 21371 4355909.13 338820324 09/24/2025 NYSE Common 09/24/2025 Options Granted - 10/11/2016 Issuer N 19200 09/24/2025 Cash Common 09/24/2025 Options Granted - 04/09/2018 Issuer N 2171 0

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144 0001268406 XXXXXXXX LIVE 0001692819 Vistra Corp. 001-38086 6555 SIERRA DRIVE IRVING TX 75039 214-812-4600 BURKE JAMES A Officer Director Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 21360 4490151.57 338820324 09/23/2025 NYSE Common 09/23/2025 Options Granted - 10/11/2016 Issuer N 19200 09/23/2025 Cash Common 09/23/2025 Options Granted - 04/09/2018 Issuer N 2160 0

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144 0001268406 XXXXXXXX LIVE 0001692819 Vistra Corp. 001-38086 6555 SIERRA DRIVE IRVING TX 75039 214-812-4600 BURKE JAMES A Officer Director Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 21362 4503715.06 338820324 09/22/2025 NYSE Common 09/22/2025 Option Granted - 10/11/2016 Issuer N 19200 09/22/2025 Cash Common 09/22/2025 Option Granted - 04/09/2018 Issuer N 2162 09/

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144 0001268406 XXXXXXXX LIVE 0001692819 Vistra Corp. 001-38086 6555 SIERRA DRIVE IRVING TX 75039 214-812-4600 BURKE JAMES A Officer Director Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 21360 4517570.62 338820324 09/19/2025 NYSE Common 09/19/2025 Option Granted - 10/11/2016 Issuer N 19200 09/19/2025 Cash Common 09/19/2025 Option Granted - 04/09/2018 Issuer N 2160 09/

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144 0001268406 XXXXXXXX LIVE 0001692819 Vistra Corp. 001-38086 6555 SIERRA DRIVE IRVING TX 75039 214-812-4600 BURKE JAMES A Officer Director Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 21366 4554708.29 338820324 09/18/2025 NYSE Common 09/18/2025 Option Granted - 10/11/2016 Issuer N 19200 09/18/2025 Cash Common 09/18/2025 Option Granted - 04/09/2018 Issuer N 2166 09/

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144 0001268406 XXXXXXXX LIVE 0001692819 Vistra Corp. 001-38086 6555 SIERRA DRIVE IRVING TX 75039 214-812-4600 BURKE JAMES A Officer Director Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 21361 4540506.03 338820324 09/17/2025 NYSE Common 09/17/2025 Option Granted - 10/11/2016 issuer N 19200 09/17/2025 Cash Common 09/17/2025 Option Granted - 04/09/2018 Issuer N 2161 09/

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144 0001268406 XXXXXXXX LIVE 0001692819 Vistra Corp. 001-38086 6555 SIERRA DRIVE IRVING TX 75039 214-812-4600 BURKE JAMES A Officer Director Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 21358 4565882.35 338820324 09/16/2025 NYSE Common 09/16/2025 Options Granted - 10/11/2016 Issuer N 19200 09/16/2025 Cash Common 09/16/2025 Options Granted - 04/09/2018 Issuer N 2158 0

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144 0001268406 XXXXXXXX LIVE 0001692819 Vistra Corp. 001-38086 6555 SIERRA DRIVE IRVING TX 75039 214-812-4600 BURKE JAMES A Officer Director Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 21362 4481773.62 338820324 09/15/2025 NYSE Common 09/15/2025 Options Granted - 10/11/2016 Issuer N 19200 09/15/2025 Cash Common 09/15/2025 Options Granted - 04/09/2018 Issuer N 2162 0

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144 0001268406 XXXXXXXX LIVE 0001692819 Vistra Corp. 001-38086 6555 SIERRA DRIVE IRVING TX 75039 214-812-4600 BURKE JAMES A Officer Director Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 21374 4335603.70 338820324 09/12/2025 NYSE Common 09/12/2025 Option Granted - 10/11/2016 Issuer N 19200 09/12/2025 Cash Common 09/12/2025 Option Granted - 04/09/2018 Issuer N 2174 09/

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144 0001268406 XXXXXXXX LIVE 0001692819 Vistra Corp. 001-38086 6555 SIERRA DRIVE IRVING TX 75039 214-812-4600 BURKE JAMES A Officer Director Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 43074 8991625.76 338820324 09/11/2025 NYSE Common 09/11/2025 Option Granted - 10/11/2016 Issuer N 40909 09/11/2025 Cash Common 09/11/2025 Option Granted - 04/09/2018 Issuer N 2165 09/

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144 0001268406 XXXXXXXX LIVE 0001692819 Vistra Corp. 001-38086 6555 SIERRA DRIVE IRVING TX 75039 214-812-4600 BURKE JAMES A Officer Director Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917 19592 3933635.66 338820324 09/10/2025 NYSE Common 09/10/2025 Option Granted - 10/11/2016 Issuer N 17600 09/10/2025 Cash Common 09/10/2025 Option Granted - 04/06/2018 Issuer N 1992 09/

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) or (g) OF THE SECURITIES EXCHANGE ACT OF 1934 VISTRA CORP. (Exact Name of Registrant as Speci

8-A12B UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) or (g) OF THE SECURITIES EXCHANGE ACT OF 1934 VISTRA CORP. (Exact Name of Registrant as Specified in Charter) Delaware 36-4833255 (State or Other Jurisdiction of Incorporation) (IRS Employer Identification No.) 6555 Sierra Drive Irving,

NYSE TEXAS CERTIFICATION

New York Stock Exchange 11 Wall Street New York, NY 10005 Tel: +1 212.656.3000 nyse.com August 18, 2025 Chief, Information Technology Securities and Exchange Commission Division of Corporate Finance 100 F Street, NE MS 3040 Washington, DC 20549 To whom it may concern: The NYSE Texas certifies its approval for listing and registration of the Common Stock, $0.01 par value per share, of VISTRA CORP.,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2025 — OR — ☐ TRANSITION REPORT PURSUA

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2025 — OR — ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38086

Mine Safety Disclosures

Exhibit 95.1 Mine Safety Disclosures Safety is a top priority in all our businesses, and accordingly, it is a key component of our focus on operational excellence, our employee performance reviews and employee compensation. Our health and safety program objectives are to prevent workplace accidents and ensure that all employees return home safely and comply with all regulations. Vistra currently o

Vistra Reports Second Quarter 2025 Results

EX-99.1 Exhibit 99.1 Vistra Reports Second Quarter 2025 Results Earnings Release Highlights • GAAP second quarter 2025 Net Income of $327 million and Cash Flow from Operations of $1,171 million. • Net Income from Ongoing Operations1 of $370 million and Ongoing Operations Adjusted EBITDA1 of $1,349 million. • Reaffirmed 2025 Ongoing Operations Adjusted EBITDA1 and Ongoing Operations Adjusted FCFbG1

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 7, 2025 VISTRA CORP. (Exact

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 7, 2025 VISTRA CORP.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 22, 2025 VISTRA CORP. (Exact

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 22, 2025 VISTRA CORP. (Exact name of registrant as specified in its charter) Delaware 001-38086 36-4833255 (State or other jurisdiction of incorporation or organization) (Commiss

Amendment No. 6 to Master Framework Agreement, dated as of July 11, 2024, by and among TXU Energy Retail Company LLC, as seller and seller party agent, certain originators named therein, Vistra Operations Company LLC, as guarantor, and MUFG Bank, Ltd., as buyer

Exhibit 10.1 EXECUTION VERSION AMENDMENT NO. 6 TO MASTER FRAMEWORK AGREEMENT This AMENDMENT NO. 6 TO MASTER FRAMEWORK AGREEMENT (this “Amendment”), is made and entered into as of July 11, 2025 (the “Amendment Date”), by and among each of: (A) MUFG Bank, Ltd., a Japanese banking corporation (“MUFG”), as buyer (“Buyer”); (B) TXU Energy Retail Company LLC, a Texas limited liability company (“TXU”), a

Sixteenth Amendment to Receivables Purchase Agreement, dated as of July 11, 2025, among TXU Energy Receivables Company LLC, as seller, TXU Energy Retail Company LLC, as servicer, Vistra Operations Company LLC, as performance guarantor, certain purchaser agents and purchasers named therein and Credit Agricole Corporate and Investment Bank, as administrator

Exhibit 4.1 EXECUTION VERSION SIXTEENTH AMENDMENT TO RECEIVABLES PURCHASE AGREEMENT This SIXTEENTH AMENDMENT (this “Amendment”), dated as of July 11, 2025, is among TXU ENERGY RECEIVABLES COMPANY LLC, a Delaware limited liability company, as seller (the “Seller”), TXU ENERGY RETAIL COMPANY LLC, a Texas limited liability company (“TXU”), as servicer (in such capacity, together with its successors a

Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 11, 2025 VISTRA CORP.

Purchase and Sale Agreement, dated May 15, 2025, by and among Vistra Operations Company LLC, NEP Holdco 1, L.L.C., NatGas Fund Holdings, L.L.C., SEIF III NatGas Holdings, L.L.C. and Edgewater Parent, L.L.

Exhibit 2.1 PURCHASE AND SALE AGREEMENT among NEP Holdco 1, L.L.C., NatGas Fund Holdings, L.L.C., SEIF III NatGas Holdings, L.L.C., and Edgewater Parent, LLC as the Sellers, and Vistra Operations Company LLC as the Buyer dated as of May 15, 2025 Table of Contents Page ARTICLE I DEFINITIONS AND CONSTRUCTION 2 Section 1.1 Definitions 2 Section 1.2 Rules of Construction 26 ARTICLE II PURCHASE AND SAL

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 15, 2025 VISTRA CORP. (Exact name of registrant as specified in its charter) Delaware 001-38086 36-4833255 (State or other jurisdiction of incorporation or organization) (Commissi

Vistra to Acquire Natural Gas Assets, Building on Industry-Leading Generation Portfolio to Better Serve Customers

EX-99.1 Exhibit 99.1 Vistra to Acquire Natural Gas Assets, Building on Industry-Leading Generation Portfolio to Better Serve Customers Highlights • Transaction includes approximately 2,600 megawatts of modern natural gas generation assets at an attractive price of approximately $743/kW of capacity. • Acquisition is expected to deliver Ongoing Operations AFCFbG1 accretion in year one following clos

Nineteenth Supplemental Indenture for 4.300% Senior Secured Notes due 2029, 3.70% Senior Secured Notes due 2027, 5.125% Senior Secured Notes due 2025, 6.950% Senior Secured Notes due 2033, 6.000% Senior Secured Notes due 2034, 5.050% Senior Secured Notes due 2026 and 5.700% Senior Secured Notes due 2034, dated January 31, 2025, among Vistra Operations Company LLC, as Issuer, the Guaranteeing Subsidiaries, the other subsidiary guarantors party thereto and the Trustee

Exhibit 4.4 NINETEENTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES NINETEENTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of January 31, 2025, among the subsidiary guarantors listed on Schedule I hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmin

Thirteenth Supplemental Indenture for 5.500% Senior Notes due 2026, dated January 31, 2025, among Vistra Operations Company LLC, as Issuer, the Guaranteeing Subsidiaries, the other subsidiary guarantors party thereto and the Trustee

Exhibit 4.1 THIRTEENTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES THIRTEENTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of January 31, 2025, among the subsidiary guarantors listed on Schedule I hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmin

Mine Safety Disclosures

Exhibit 95.1 Mine Safety Disclosures Safety is a top priority in all our businesses, and accordingly, it is a key component of our focus on operational excellence, our employee performance reviews and employee compensation. Our health and safety program objectives are to prevent workplace accidents and ensure that all employees return home safely and comply with all regulations. Vistra currently o

Thirteenth Supplemental Indenture for 5.625% Senior Notes due 2027, dated January 31, 2025, among Vistra Operations Company LLC, as Issuer, the Guaranteeing Subsidiaries, the other subsidiary guarantors party thereto and the Trustee

Exhibit 4.2 THIRTEENTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES THIRTEENTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of January 31, 2025, among the subsidiary guarantors listed on Schedule I hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmin

First Supplemental Indenture for 6.875% Senior Notes due 2032, dated January 31, 2025, among Vistra Operations Company LLC, as Issuer, the Guaranteeing Subsidiaries, the other subsidiary guarantors party thereto and the Trustee

Exhibit 4.7 FIRST SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES FIRST SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of January 31, 2025, among the subsidiary guarantors listed on Schedule I hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmington Trust

Thirteenth Supplemental Indenture for 5.000% Senior Notes due 2027, dated January 31, 2025, among Vistra Operations Company LLC, as Issuer, the Guaranteeing Subsidiaries, the other subsidiary guarantors party thereto and the Trustee

Exhibit 4.3 THIRTEENTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES THIRTEENTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of January 31, 2025, among the subsidiary guarantors listed on Schedule I hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmin

Third Supplemental Indenture for 7.750% Senior Secured Notes due 2031, dated January 31, 2025, among Vistra Operations Company LLC, as Issuer, the Guaranteeing Subsidiaries, the other subsidiary guarantors party thereto and the Trustee

Exhibit 4.5 THIRD SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES THIRD SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as January 31, 2025, among the subsidiary guarantors listed on Schedule I hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmington Trust, N

Fifth Supplemental Indenture for 7.233% Senior Notes due 2028, dated February 5, 2025, among Vistra Operations Company LLC, as Issuer, the Guaranteeing Subsidiaries, the other subsidiary guarantors party thereto and the Trustee

Exhibit 4.8 FIFTH SUPPLEMENTAL INDENTURE ADDITIONAL SUBSIDIARY GUARANTEES FIFTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of February 5, 2025, among the subsidiary guarantors listed on Schedule I hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company” ), the other subsidiary guarantors party hereto and The

Seventh Supplemental Indenture for 4.375% Senior Notes due 2029, dated January 31, 2025, among Vistra Operations Company LLC, as Issuer, the Guaranteeing Subsidiaries, the other subsidiary guarantors party thereto and the Trustee

Exhibit 4.6 SEVENTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES SEVENTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of January 31, 2025, among the subsidiary guarantors listed on Schedule I hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmington T

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2025 — OR — ☐ TRANSITION REPORT PURSU

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2025 — OR — ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38086

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 7, 2025 VISTRA CORP.

Vistra Reports First Quarter 2025 Results

Exhibit 99.1 Vistra Reports First Quarter 2025 Results Earnings Release Highlights • GAAP first quarter 2025 Net Loss of $(268) million and Cash Flow from Operations of $599 million. • Net Loss from Ongoing Operations1 of $(200) million and Ongoing Operations Adjusted EBITDA1 of $1,240 million. • Reaffirmed 2025 Ongoing Operations Adjusted EBITDA1 and Ongoing Operations Adjusted FCFbG1 guidance ra

Amended and Restated Certificate of Incorporation of Vistra Corp.

Exhibit 3.1 AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF VISTRA CORP. (a Delaware corporation) Vistra Corp., a corporation duly organized and existing under and by virtue of the laws of the State of Delaware (the “Corporation”), does hereby certify as follows: A. The Corporation’s original certificate of incorporation was filed with the Delaware Secretary of State on October 3, 2016 under

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Material Modification to Rights of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 30, 2025 VISTRA CORP.

Amended and Restated Bylaws of Vistra Corp., effective May 2, 2025

EX-3.2 Exhibit 3.2 AMENDED AND RESTATED BYLAWS OF VISTRA CORP. Amended and restated as of May 2, 2025 TABLE OF CONTENTS Page ARTICLE I CORPORATE OFFICES 1 Section 1.1 Registered Office 1 Section 1.2 Other Offices 1 ARTICLE II MEETINGS OF STOCKHOLDERS 1 Section 2.1 Annual Meeting 1 Section 2.2 Special Meeting 1 Section 2.3 Notice of Stockholders’ Meetings 3 Section 2.4 Organization 4 Section 2.5 Li

025 Employee Stock Purchase Plan, effective April 30, 2025

Exhibit 10.1 VISTRA CORP. 2025 EMPLOYEE STOCK PURCHASE PLAN ARTICLE I. PURPOSE The purpose of this Plan is to assist Eligible Employees of the Company and its Designated Subsidiaries in acquiring a stock ownership interest in the Company. The Plan consists of two components: (i) the Section 423 Component and (ii) the Non-Section 423 Component. The Section 423 Component is intended to qualify as an

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant  ☒  Filed by a Party other than the Registrant  ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule

ARS

ANNUAL REPORT 2024 6555 Sierra Drive,Irving, Texas75039 Iwww.vistracorp.comAsLubbock’selectricitymarket openedtocompetitionin2024, TXUEnergyquicklybecamethe city’stopchoiceforhomesand businesses.Withthepowerto switchfromthelocalutilitytoan electricityprovideroftheirchoice, tensofthousandsofpeopleturned toTXUEnergyforstraightforward, affordableelectricityplans–more thananyotherprovider. Thisshiftre

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ☐ Defin

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant  ☒  Filed by a Party other than the Registrant  ☐ Check the appropriate box: ☒ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule

Transactions in Vistra Corp. Securities Policy

Exhibit 19.1 VISTRA CORP. TRANSACTIONS IN VISTRA CORP. SECURITIES I.SCOPE The Transactions in Vistra Corp. Securities Policy (this “Policy”) describes the obligations and responsibilities of all Affected Persons (as defined below) subject to this Policy with regard to transactions in the Vistra Securities (as defined below) of Vistra Corp. (the “Company” or “Vistra,” together with its subsidiaries

Amended and Restated Class B Unit Purchase Agreement, dated December 11, 2024, by and among Vistra Operations Company LLC, Vistra Vision Holdings I LLC, and Nuveen Asset Management, LLC

Exhibit 10.76 AMENDED AND RESTATED CLASS B UNIT PURCHASE AGREEMENT THIS AMENDED AND RESTATED CLASS B UNIT PURCHASE AGREEMENT (this “Agreement”) is entered into as of December 11, 2024 by and among Vistra Vision Holdings I LLC, a Delaware limited liability company (the “Purchaser”), Nuveen Asset Management, LLC, a Delaware limited liability company, as investment advisor or subadvisor on behalf of

Mine Safety Disclosures

Exhibit 95.1 Mine Safety Disclosures Safety is a top priority in all our businesses, and accordingly, it is a key component of our focus on operational excellence, our employee performance reviews and employee compensation. Our health and safety program objectives are to prevent workplace accidents and ensure that all employees return home safely and comply with all regulations. Vistra currently o

, dated October 20, 2023, among Vistra Operations Company LLC, as Issuer, the Guaranteeing Subsidiaries, the Subsidiary Guarantors and the Trustee

Exhibit 4.94 FIFTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES FIFTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of October 20, 2023, among the subsidiary guarantors listed on Schedule I hereto (the “Guaranteeing Subsidiary”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmington Trust,

, dated October 20, 2023, among Vistra Operations Company LLC, as Issuer, the Guaranteeing Subsidiaries, the Subsidiary Guarantors and the Trustee

Exhibit 4.85 FIRST SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES FIRST SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of October 20, 2023, among the subsidiary guarantor listed on Schedule I hereto (the “Guaranteeing Subsidiary”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmington Trust,

, dated October 20, 2023, among Vistra Operations Company LLC, as Issuer, the Guaranteeing Subsidiaries, the Subsidiary Guarantors and the Trustee

Exhibit 4.29 ELEVENTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES ELEVENTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of October 20, 2023, among the subsidiary guarantor listed on Schedule I hereto (the “Guaranteeing Subsidiary”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmington T

dated October 20, 2023, among Vistra Operations Company LLC, as Issuer, the Guaranteeing Subsidiaries, the Subsidiary Guarantors and the Trustee

Exhibit 4.14 ELEVENTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES ELEVENTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of October 20, 2023, among the subsidiary guarantor listed on Schedule I hereto (the “Guaranteeing Subsidiary”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmington T

Supplemental Indenture for 3.55% Senior Secured Notes due 2024, 4.30% Senior Secured Notes due 2029, 3.70% Senior Secured Notes due 2027, 4.875% Senior Secured Notes due 2024, 5.125% Senior Secured Notes due 2025 and 6.950% Senior Secured Notes due 2033

Exhibit 4.67 FIFTEENTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES FIFTEENTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of October 20, 2023, among the subsidiary guarantor listed on Schedule I hereto (the “Guaranteeing Subsidiary”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmington

Form of Restricted Stock Unit Award Agreement (Management), for 2016 Omnibus Incentive Plan, effective as of January 1, 2025

Exhibit 10.8 RESTRICTED STOCK UNIT AWARD AGREEMENT PURSUANT TO THE VISTRA CORP. 2016 OMNIBUS INCENTIVE PLAN * * * * * Participant: Grant Date: Number of Restricted Stock Units Granted: * * * * * THIS RESTRICTED STOCK UNIT AWARD AGREEMENT (this “Agreement”), dated as of the Grant Date specified above, is entered into by and between Vistra Corp., a corporation organized in the State of Delaware (the

Description of Capital Stock

Exhibit 4.134 Description of Capital Stock The following description of Vistra Corp.’s (the “Company,” “we” or “us”) capital stock is a summary and does not purport to be complete. It is subject to and qualified in its entirety by reference to the Company’s Certificate of Incorporation (as amended, the “Charter”), the Company’s Restated Bylaws (“Bylaws”), each of which are incorporated by referenc

, dated October 20, 2023, among Vistra Operations Company LLC, as Issuer, the Guaranteeing Subsidiaries, the Subsidiary Guarantors and the

Exhibit 4.131 THIRD SUPPLEMENTAL INDENTURE ADDITIONAL SUBSIDIARY GUARANTEES THIRD SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of October 20, 2023, among the subsidiary guarantor listed on Schedule I hereto (the “Guaranteeing Subsidiary”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company” ), the other subsidiary guarantors party hereto and The B

Significant Subsidiaries of Vistra Corp.

Exhibit 21.1 Significant Subsidiaries of Vistra Corp. As of December 31, 2024 SUBSIDIARY STATE OR COUNTRY OF INCORPORATION OR ORGANIZATION 1 Ambit Energy Holdings, LLC Texas 2 Ambit Holdings, LLC Texas 3 Ambit Texas, LLC Texas 4 Comanche Peak Power Company LLC Delaware 5 Crius Energy, LLC Delaware 6 Crius Energy Holdings, LLC Delaware 7 Dynegy Coal Holdco, LLC Delaware 8 Dynegy Energy Services (Ea

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2024 — OR — ☐ TRANSITION REPORT PURSUANT T

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2024 — OR — ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38086 Vist

Form of Performance Stock Unit Award Agreement (Management) for 2016 Omnibus Incentive Plan, effective as of January 1, 2025

Exhibit 10.9 PERFORMANCE STOCK UNIT AWARD AGREEMENT PURSUANT TO THE VISTRA CORP. 2016 OMNIBUS INCENTIVE PLAN * * * * * Participant: [] Grant Date: [] Target Number of Performance Stock Units (the “Target PSUs”): [] Maximum Number of Shares of Common Stock that may be issued pursuant to this Agreement (the “Maximum Shares”): [] * * * * * THIS PERFORMANCE STOCK UNIT AWARD AGREEMENT (this “Agreement”

, dated October 20, 2023, among Vistra Operations Company LLC, as Issuer, the Guaranteeing Subsidiaries, the Subsidiary Guarantors and the Trustee

Exhibit 4.44 ELEVENTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES ELEVENTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of October 20, 2023, among the subsidiary guarantor listed on Schedule I hereto (the “Guaranteeing Subsidiary”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmington T

Amended and Restated Vistra Annual Incentive Plan, effective as of January 1, 2025

Exhibit 10.10 VISTRA ANNUAL INCENTIVE PLAN Plan Document Amended and Restated, effective as of January 1, 2025 Contents Article I. Purpose. 1 Article II. Definitions. 1 Article III. Eligibility and Participation. 3 Article IV. Establishment of Performance Goals. 3 Article V. Establishment of Awards. 3 Article VI. Application of Individual Performance Modifier and Determination of Individual Partic

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 27, 2025 VISTRA CORP.

Vistra Reports Fourth Quarter and Full-Year 2024 Results

Exhibit 99.1 Vistra Reports Fourth Quarter and Full-Year 2024 Results Earnings Release Highlights • GAAP full-year 2024 Net Income of $2,812 million and Cash Flow from Operations of $4,563 million. • Net Income from Ongoing Operations1 of $2,928 million, Ongoing Operations Adjusted EBITDA1 of $5,656 million, $856 million higher than the midpoint of the original guidance range announced in May 2024

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 24, 2024 VISTRA CORP. (Exact name of registrant as specified in its charter) Delaware 001-38086 36-4833255 (State or other jurisdiction of incorporation or organization) (Com

FOR IMMEDIATE PUBLICATION Vistra Announces Expansion of its Board of Directors with the Appointment of Rob Walters

Exhibit 99.1 FOR IMMEDIATE PUBLICATION Vistra Announces Expansion of its Board of Directors with the Appointment of Rob Walters IRVING, Texas — Dec. 30, 2024 — Vistra (NYSE: VST) today announced a new addition to its board of directors. Effective today, Rob Walters has been appointed as independent director and will serve on two board committees: Sustainability and Risk Committee and Nominating an

Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 17, 2024 VISTRA CORP.

First Amendment to Credit Agreement, dated December 17, 2024, by and among Vistra Zero Operating Company, LLC, the guarantors party thereto, the lenders party thereto and Citibank, N.A. (as Administrative Agent and as Collateral Agent).

Exhibit 10.1 EXECUTION VERSION FIRST AMENDMENT TO CREDIT AGREEMENT THIS FIRST AMENDMENT TO CREDIT AGREEMENT, dated as of December 17, 2024 (including the annexes, schedules, exhibits and other attachments hereto, this “First Amendment”), by and among Vistra Zero Operating Company, LLC, a Delaware limited liability company (the “Borrower”), the Lenders party hereto and Citibank, N.A., as Administra

Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 10, 2024 VISTRA CORP.

Seventeenth Amendment to Credit Agreement, dated December 10, 2024, by and among Vistra Operations Company LLC (as Borrower), Vistra Intermediate Company LLC (as Holdings), the other Credit Parties (as defined in the Credit Agreement) party thereto, the lenders party thereto, and Citibank, N.A. (as Administrative Agent and Collateral Agent)

Exhibit 10.1 Execution Version SEVENTEENTH AMENDMENT TO CREDIT AGREEMENT THIS SEVENTEENTH AMENDMENT TO CREDIT AGREEMENT, dated as of December 10, 2024 (including the annexes, schedules, exhibits and other attachments hereto, this “Seventeenth Amendment”), by and among Vistra Operations Company LLC, a Delaware limited liability company (the “Borrower”), Vistra Intermediate Company LLC, a Delaware l

Eighteenth Supplemental Indenture, dated as of December 4, 2024, between Vistra Operations Company LLC, as Issuer, the Subsidiary Guarantors, and Wilmington Trust, National Association, as Trustee.

Exhibit 4.1 EXECUTION VERSION VISTRA OPERATIONS COMPANY LLC, as Issuer 5.050% SENIOR SECURED NOTES DUE 2026 5.700% SENIOR SECURED NOTES DUE 2034 EIGHTEENTH SUPPLEMENTAL INDENTURE Dated as of December 4, 2024 Wilmington Trust, National Association as Trustee TABLE OF CONTENTS Page Article 1 DEFINITIONS AND INCORPORATION BY REFERENCE Section 1.01 Definitions 1 Section 1.02 Other Definitions 25 Secti

Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 4, 2024 VISTRA CORP.

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 19, 2024 VISTRA CORP. (Exact name of registrant as specified in its charter) Delaware 001-38086 36-4833255 (State or other jurisdiction of incorporation or organization) (Com

Regulation FD Disclosure

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 19, 2024 VISTRA CORP.

Letter Agreement, dated November 17, 2024, by and among Vistra Operations Company LLC, Vistra Vision Holdings I LLC, and VV Aggregator Holdings 1 LLC

Exhibit 10.1 Execution Version November 17, 2024 VV Aggregator Holdings 1 LLC c/o Avenue Capital Management, L.P. 11 West 42nd Street, 9th Floor New York, NY 10036 CONFIDENTIAL Re: Amended and Restated Class B Unit Purchase Agreement Ladies and Gentlemen: Reference is made to (a) that certain Class B Unit Purchase Agreement (the “Original UPA”), dated as of September 18, 2024, by and among Vistra

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 17, 2024 VISTRA CORP. (Exact name of registrant as specified in its charter) Delaware 001-38086 36-4833255 (State or other jurisdiction of incorporation or organization) (Com

VISTRA CORP. UNAUDITED PRO FORMA COMBINED CONSOLIDATED FINANCIAL INFORMATION

Exhibit 99.1 VISTRA CORP. UNAUDITED PRO FORMA COMBINED CONSOLIDATED FINANCIAL INFORMATION On March 1, 2024, Vistra Corp., a Delaware corporation (“Vistra”) completed its previously announced transaction pursuant to that certain Transaction Agreement dated as of March 6, 2023 (the “Transaction Agreement”), by and among Vistra Operations Company, LLC, a Delaware limited liability company (“Parent” o

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 15, 2024 VISTRA CORP. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 15, 2024 VISTRA CORP.

VST / Vistra Corp. / FMR LLC Passive Investment

SCHEDULE 13G Amendment No.0 VISTRA CORP COMMON STOCK Cusip #92840M102 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [x] Rule 13d-1(b) [ ] Rule 13d-1(c) [ ] Rule 13d-1(d) Cusip #92840M102 Item 1: Reporting Person - FMR LLC Item 2: (a) [ ] (b) [ ] Item 4: Delaware Item 5: 22,425,439 Item 6: 0 Item 7: 22,872,039 Item 8: 0 Item 9: 22,872,039 Item 11: 6.657%

, by and among Vistra Operations Company LLC (as Borrower), Vistra Intermediate Company LLC (as Holdings),

Exhibit 10.6 SIXTEENTH AMENDMENT TO CREDIT AGREEMENT This SIXTEENTH AMENDMENT TO CREDIT AGREEMENT, dated as of October 11, 2024 (including the annexes, schedules, exhibits and other attachments hereto, this “Sixteenth Amendment”), by and among Vistra Operations Company LLC, a Delaware limited liability company (the “Borrower”), Vistra Intermediate Company LLC, a Delaware limited liability company

VST / Vistra Corp. / BlackRock, Inc. Passive Investment

SC 13G/A 1 us92840m1027110824.txt us92840m1027110824.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 3) Vistra Corp. - (Name of Issuer) Common Stock - (Title of Class of Securities) 92840M102 - (CUSIP Number) September 30, 2024 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to d

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2024 — OR — ☐ TRANSITION REPORT P

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2024 — OR — ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-3

, among Vistra Operations Company LLC, as Borrower, Vistra Intermediate Company LLC, as Holdings, Citibank, N.A., as Administrative Agent and as Collateral Agent, and the other lenders party thereto

Exhibit 10.5 EIGHTH AMENDMENT TO CREDIT AGREEMENT This EIGHTH AMENDMENT TO CREDIT AGREEMENT, dated as of October 2, 2024 (including the annexes, schedules, exhibits and other attachments hereto, this “Eighth Amendment”), by and among Vistra Operations Company LLC, a Delaware limited liability company (the “Borrower”), Vistra Intermediate Company LLC, a Delaware limited liability company (“Holdings

Mine Safety Disclosures

Exhibit 95.1 Mine Safety Disclosures Safety is a top priority in all our businesses, and accordingly, it is a key component of our focus on operational excellence, our employee performance reviews and employee compensation. Our health and safety program objectives are to prevent workplace accidents and ensure that all employees return home safely and comply with all regulations. Vistra currently o

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 7, 2024 VISTRA CORP. (Exac

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 7, 2024 VISTRA CORP.

Vistra Reports Third Quarter 2024 Results, Raises and Narrows 2024 Guidance, and Initiates 2025 Guidance

EX-99.1 Exhibit 99.1 Vistra – Press Release Nov. 7, 2024, Page 1 Vistra Reports Third Quarter 2024 Results, Raises and Narrows 2024 Guidance, and Initiates 2025 Guidance Earnings Release Highlights • GAAP third quarter 2024 Net Income of $1,837 million and Cash Flow from Operations of $1,702 million. • Net Income from Ongoing Operations1 of $1,855 million and Ongoing Operations Adjusted EBITDA1 of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 30, 2024 VISTRA CORP. (Exac

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 30, 2024 VISTRA CORP.

Amended and Restated Bylaws of Vistra Corp., effective October 30, 2024

EX-3.1 Exhibit 3.1 AMENDED AND RESTATED BYLAWS OF VISTRA CORP. Amended and restated as of October 30, 2024 TABLE OF CONTENTS Page ARTICLE I CORPORATE OFFICES 1 Section 1.1 Registered Office 1 Section 1.2 Other Offices 1 ARTICLE II MEETINGS OF STOCKHOLDERS 1 Section 2.1 Annual Meeting 1 Section 2.2 Special Meeting 1 Section 2.3 Notice of Stockholders’ Meetings 4 Section 2.4 Organization 5 Section 2

VST / Vistra Corp. / BlackRock, Inc. Passive Investment

SC 13G/A 1 us92840m1027102224.txt us92840m1027102224.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 3) Vistra Corp. - (Name of Issuer) Common Stock - (Title of Class of Securities) 92840M102 - (CUSIP Number) September 30, 2024 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to d

Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 11, 2024 VISTRA CORP.

Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 2, 2024 VISTRA CORP.

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 18, 2024 VISTRA CORP. (Exact name of registrant as specified in its charter) Delaware 001-38086 36-4833255 (State or other jurisdiction of incorporation or organization) (Co

Unit Purchase Agreement, dated September 18, 2024, by and among Vistra Operations Company LLC, Vistra Vision Holdings I LLC, and VV Aggregator Holdings 1 LLC

Exhibit 10.1 EXECUTION VERSION CLASS B UNIT PURCHASE AGREEMENT THIS CLASS B UNIT PURCHASE AGREEMENT (this “Agreement”) is entered into as of September 18, 2024 by and among Vistra Vision Holdings I LLC, a Delaware limited liability company (the “Purchaser”), VV Aggregator Holdings 1 LLC, a Delaware limited liability company (the “Seller”), and, solely for the purposes of Section 7(t) and the other

Unit Purchase Agreement, dated September 18, 2024, by and among Vistra Operations Company LLC, Vistra Vision Holdings I LLC, and certain funds and accounts advised by Nuveen Asset Management, LLC

Exhibit 10.2 EXECUTION VERSION CLASS B UNIT PURCHASE AGREEMENT THIS CLASS B UNIT PURCHASE AGREEMENT (this “Agreement”) is entered into as of September 18, 2024 by and among Vistra Vision Holdings I LLC, a Delaware limited liability company (the “Purchaser”), Nuveen Asset Management, LLC, a Delaware limited liability company, as investment advisor or subadvisor on behalf of each fund and/or account

Vistra to Acquire Equity Interests of Vistra Vision LLC from Minority Investors Vistra to become the sole owner of Vistra Vision

Exhibit 99.1 Vistra to Acquire Equity Interests of Vistra Vision LLC from Minority Investors Vistra to become the sole owner of Vistra Vision Highlights • Transaction, consisting of the acquisition of the entire 15% equity interest in Vistra Vision currently owned by affiliates of Nuveen and Avenue, is expected to close on Dec. 31, 2024. • Net present value cash purchase price, which will be paid

Mine Safety Disclosures

Exhibit 95.1 Mine Safety Disclosures Safety is a top priority in all our businesses, and accordingly, it is a key component of our focus on operational excellence, our employee performance reviews and employee compensation. Our health and safety program objectives are to prevent workplace accidents and ensure that all employees return home safely and comply with all regulations. Vistra currently o

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2024 — OR — ☐ TRANSITION REPORT PURSUA

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2024 — OR — ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38086

Vistra Reports Second Quarter 2024 Results

Exhibit 99.1 Vistra Reports Second Quarter 2024 Results Earnings Release Highlights • GAAP second quarter 2024 Net Income of $467 million and Cash Flow from Operations of $1,196 million. • Net Income from Ongoing Operations1 of $492 million and Ongoing Operations Adjusted EBITDA1 of $1,414 million. • Reaffirmed midpoint guidance for 2024 Ongoing Operations Adjusted EBITDA,1 excluding any potential

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 8, 2024 VISTRA CORP.

Filing Fee Table

Exhibit 107.1 CALCULATION OF FILING FEE TABLES FORM S-8 REGISTRATION STATEMENT (Form Type) Vistra Corp. (Exact Name of registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title (1) Fee Calculation Rule Amount Registered (1) Proposed Maximum Offering Price per Share Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Equity Comm

As filed with the Securities and Exchange Commission on August 5, 2024.

S-8 As filed with the Securities and Exchange Commission on August 5, 2024. Registration No. 333-   UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 VISTRA CORP. (Exact Name of Registrant as Specified in its Charter) Delaware 4911 36-4833255 (State or Other Jurisdiction of Incorporation or Organization) (Primar

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 30, 2024 VISTRA CORP. (Exact name of registrant as specified in its charter) Delaware 001-38086 36-4833255 (State or other jurisdiction of incorporation or organization) (Commiss

Fifteenth Amendment to Receivables Purchase Agreement, dated as of July 11, 2024, among TXU Energy Receivables Company LLC, as seller, TXU Energy Retail Company LLC, as servicer, Vistra Operations Company LLC, as performance guarantor, certain purchaser agents and purchasers named therein and Credit Agricole Corporate and Investment Bank, as administrator

Exhibit 4.1 EXECUTION VERSION FIFTEENTH AMENDMENT TO RECEIVABLES PURCHASE AGREEMENT This FIFTEENTH AMENDMENT (this “Amendment”), dated as of July 11, 2024, is among TXU ENERGY RECEIVABLES COMPANY LLC, a Delaware limited liability company, as seller (the “Seller”), TXU ENERGY RETAIL COMPANY LLC, a Texas limited liability company (“TXU”), as servicer (in such capacity, together with its successors a

Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 11, 2024 VISTRA CORP.

Amendment No. 4 to Master Repurchase Agreement, dated as of July 11, 2024, by and among TXU Energy Retail Company LLC, as seller and MUFG Bank, Ltd., as buyer

Exhibit 10.2 EXECUTION VERSION AMENDMENT NO. 4 TO MASTER REPURCHASE AGREEMENT This AMENDMENT NO. 4 TO MASTER REPURCHASE AGREEMENT (this “Amendment”), is made and entered into as of July 11, 2024 (the “Amendment Date”), by and among each of (A) MUFG Bank, Ltd., a Japanese banking corporation, as buyer (“Buyer”); and (B) TXU Energy Retail Company LLC, a Texas limited liability company (“TXU”), as se

Amendment No. 5 to Master Framework Agreement, dated as of July 11, 2024, by and among TXU Energy Retail Company LLC, as seller and seller party agent, certain originators name therein, Vistra Operations Company LLC, as guarantor, and MUFG Bank, Ltd., as buyer

Exhibit 10.1 EXECUTION VERSION AMENDMENT NO. 5 TO MASTER FRAMEWORK AGREEMENT This AMENDMENT NO. 5 TO MASTER FRAMEWORK AGREEMENT (this “Amendment”), is made and entered into as of July 11, 2024 (the “Amendment Date”), by and among each of: (A) MUFG Bank, Ltd., a Japanese banking corporation (“MUFG”), as buyer (“Buyer”); (B) TXU Energy Retail Company LLC, a Texas limited liability company (“TXU”), a

Sixth Supplemental Indenture for 4.375% Senior Notes due 2029, dated March 29, 2024, among Vistra Operations Company LLC, as Issuer, the Guaranteeing Subsidiaries, the Subsidiary Guarantors and the Trustee

Exhibit 4.5 SIXTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES SIXTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of March 29, 2024, among the subsidiary guarantors listed on Schedule I hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmington Trust,

Fourth Supplemental Indenture for 7.233% Senior Secured Notes due 2028, dated March 29, 2024, among Vistra Operations Company LLC, as Issuer, the Guaranteeing Subsidiaries, the Subsidiary Guarantors and the Trustee

Exhibit 4.4 FOURTH SUPPLEMENTAL INDENTURE ADDITIONAL SUBSIDIARY GUARANTEES FOURTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of March 29, 2024, among the subsidiary guarantors listed on Schedule I hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company” ), the other subsidiary guarantors party hereto and The

Twelfth Supplemental Indenture for 5.625% Senior Notes due 2027, dated March 29, 2024, among Vistra Operations Company LLC, as Issuer, the Guaranteeing Subsidiaries, the Subsidiary Guarantors and the Trustee

Exhibit 4.7 TWELFTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES TWELFTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of March 29, 2024, among the subsidiary guarantors listed on Schedule I hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmington Tru

Open-End Mortgage, General Mortgage Indenture and Deed of Trust, dated as of June 19, 2008

EXHIBIT 4.21 OPEN-END MORTGAGE, GENERAL MORTGAGE INDENTURE AND DEED OF TRUST FIRSTENERGY GENERATION CORP. TO THE BANK OF NEW YORK TRUST COMPANY, N.A., as Trustee Dated As Of June 19, 2008 This Instrument Contains After-Acquired Property Provisions This Indenture constitutes a financing statement filed as a fixture filing under Article 9 of the Uniform Commercial Code (as in effect in the relevant

Open-End Mortgage, General Mortgage Indenture and Deed of Trust, dated as of June 1, 200

EXHIBIT 4.20 OPEN-END MORTGAGE, GENERAL MORTGAGE INDENTURE AND DEED OF TRUST FIRSTENERGY NUCLEAR GENERATION CORP. TO THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Trustee Dated As Of June 1, 2009 This Instrument Contains After-Acquired Property Provisions This Indenture constitutes a financing statement filed as a fixture filing under Article 9 of the Uniform Commercial Code (as in effect in

Sixteenth Supplemental Indenture for 3.55% Senior Secured Notes due 2024, 4.30% Senior Secured Notes due 2029, 3.70% Senior Secured Notes due 2027, 4.875% Senior Secured Notes due 2024, 5.125% Senior Secured Notes due 2025 and 6.950% Senior Secured Notes due 2033, dated March 29, 2024, among Vistra Operations Company LLC, as Issuer, the Guaranteeing Subsidiaries, the Subsidiary Guarantors and the Trustee

Exhibit 4.9 SIXTEENTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES SIXTEENTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of March 29, 2024, among the subsidiary guarantors listed on Schedule I hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmington

Twelfth Supplemental Indenture for 5.500% Senior Notes due 2026, dated March 29, 2024, among Vistra Operations Company LLC, as Issuer, the Guaranteeing Subsidiaries, the Subsidiary Guarantors and the Trustee

Exhibit 4.6 TWELFTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES TWELFTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of March 29, 2024, among the subsidiary guarantors listed on Schedule I hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmington Tru

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2024 — OR — ☐ TRANSITION REPORT PURSU

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2024 — OR — ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38086

Mine Safety Disclosures

Exhibit 95.1 Mine Safety Disclosures Safety is a top priority in all our businesses, and accordingly, it is a key component of our focus on operational excellence, our employee performance reviews and employee compensation. Our health and safety program objectives are to prevent workplace accidents and ensure that all employees return home safely and comply with all regulations. Vistra currently o

Second Supplemental Indenture for 7.750% Senior Secured Notes due 2031, dated March 29, 2024, among Vistra Operations Company LLC, as Issuer, the Guaranteeing Subsidiaries, the Subsidiary Guarantors and the Trustee

Exhibit 4.3 SECOND SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES SECOND SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of March 29, 2024, among the subsidiary guarantors listed on Schedule I hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmington Trust

First Supplemental Indenture, dated as of June 15, 2009, under the Open-End Mortgage, General Mortgage Indenture and Deed of Trust, dated as of June 1, 2009

EXHIBIT 4.16 FIRST SUPPLEMENTAL INDENTURE FIRSTENERGY NUCLEAR GENERATION CORP. TO THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Trustee Dated as of June 15, 2009 Providing among other things for First Mortgage Bonds, Guarantee Series A of 2009 due 2033 First Mortgage Bonds, Guarantee Series B of 2009 due 2011 First Mortgage Bonds, Collateral Series A of 2009 due 2010 First Mortgage Bonds, Co

Twelfth Supplemental Indenture for 5.00% Senior Notes due 2027, dated March 29, 2024, among Vistra Operations Company LLC, as Issuer, the Guaranteeing Subsidiaries, the Subsidiary Guarantors and the Trustee

Exhibit 4.8 TWELFTH SUPPLEMENTAL INDENTURE SUBSIDIARY GUARANTEES TWELFTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of March 29, 2024, among the subsidiary guarantors listed on Schedule I hereto (the “Guaranteeing Subsidiaries”), Vistra Operations Company LLC, a Delaware limited liability company (the “Company”), the other subsidiary guarantors party hereto and Wilmington Tru

Second Supplemental Indenture, dated as of June 30, 2009, under the Open-End Mortgage, General Mortgage Indenture and Deed of Trust, dated as of June 1, 2009

EXHIBIT 4.17 SECOND SUPPLEMENTAL INDENTURE FIRSTENERGY NUCLEAR GENERATION CORP. TO THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Trustee Dated as of June 30, 2009 Providing among other things for First Mortgage Bonds, Guarantee Series C of 2009 due 2033 First Mortgage Bonds, Guarantee Series D of 2009 due 2033 First Mortgage Bonds, Guarantee Series E of 2009 due 2033 First Mortgage Bonds, Co

Eighth Supplemental Indenture, dated as of August 15, 2016, under the Open-End Mortgage, General Mortgage Indenture and Deed of Trust, dated as of June 19, 2008

EXHIBIT 4.19 EIGHTH SUPPLEMENTAL INDENTURE FIRSTENERGY GENERATION, LLC TO THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A. as Trustee Dated as of August 15, 2016 Providing among other things for First Mortgage Bonds, Guarantee Series I of 2016 due 2028 First Mortgage Bonds, Guarantee Series J of 2016 due 2029 First Mortgage Bonds, Guarantee Series K of 2016 due 2047 First Mortgage Bonds, Guarantee

Fifth Supplemental Indenture, dated as of August 15, 2016, under the Open-End Mortgage, General Mortgage Indenture and Deed of Trust, dated as of June 1, 2009

EXHIBIT 4.18 FIFTH SUPPLEMENTAL INDENTURE FIRSTENERGY NUCLEAR GENERATION, LLC TO THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A. as Trustee Dated as of August 15, 2016 Providing among other things for First Mortgage Bonds, Guarantee Series F of 2016 due 2035 First Mortgage Bonds, Guarantee Series G of 2016 due 2033 Supplemental to Open-End Mortgage, General Mortgage Indenture and Deed of Trust, Da

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 8, 2024 VISTRA CORP. (Exact nam

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 8, 2024 VISTRA CORP.

Vistra Reports First Quarter 2024 Results, Raises Expectations for Energy Harbor and Consolidated Adjusted EBITDA

Exhibit 99.1 Vistra Reports First Quarter 2024 Results, Raises Expectations for Energy Harbor and Consolidated Adjusted EBITDA Earnings Release Highlights • GAAP first quarter 2024 Net Income of $18 million and Cash Flow from Operations of $312 million. • Net Income from Ongoing Operations1 of $39 million and Ongoing Operations Adjusted EBITDA1 of $813 million. • Initiated a combined midpoint guid

VST / Vistra Corp. / BlackRock Inc. Passive Investment

SC 13G/A 1 us92840m1027050724.txt us92840m1027050724.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 2) Vistra Corp. - (Name of Issuer) Common Stock - (Title of Class of Securities) 92840M102 - (CUSIP Number) April 30, 2024 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to desig

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 1, 2024 VISTRA CORP. (Exact nam

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 1, 2024 VISTRA CORP.

Amended and Restated 2016 Omnibus Incentive Plan effective as of May 1, 2024

Exhibit 10.1 APPENDIX A VISTRA CORP. 2016 OMNIBUS INCENTIVE PLAN ARTICLE I PURPOSE The purpose of this Vistra Corp. 2016 Omnibus Incentive Plan is to enhance the profitability and value of the Company for the benefit of its stockholders by enabling the Company to offer Eligible Individuals cash and stock-based incentives in order to attract, retain and reward such individuals and strengthen the mu

Indenture, dated as of April 12, 2024, between Vistra Operations Company LLC, as Issuer, the Subsidiary Guarantors, and Wilmington Trust, National Association, as Trustee

Exhibit 4.2 EXECUTION VERSION VISTRA OPERATIONS COMPANY LLC, as Issuer 6.875% SENIOR NOTES DUE 2032 INDENTURE Dated as of April 12, 2024 Wilmington Trust, National Association as Trustee TABLE OF CONTENTS Page Article 1 DEFINITIONS AND INCORPORATION BY REFERENCE Section 1.01 Definitions 1 Section 1.02 Other Definitions 20 Section 1.03 Rules of Construction 20 Article 2 THE NOTES Section 2.01 Form

Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 12, 2024 VISTRA CORP.

Seventeenth Supplemental Indenture, dated as of April 12, 2024, between Vistra Operations Company LLC, as Issuer, the Subsidiary Guarantors, and Wilmington Trust, National Association, as Trustee

EX-4.1 Exhibit 4.1 EXECUTION VERSION VISTRA OPERATIONS COMPANY LLC, as Issuer 6.000% SENIOR SECURED NOTES DUE 2034 SEVENTEENTH SUPPLEMENTAL INDENTURE Dated as of April 12, 2024 Wilmington Trust, National Association as Trustee TABLE OF CONTENTS Page Article 1 DEFINITIONS AND INCORPORATION BY REFERENCE Section 1.01 Definitions 1 Section 1.02 Other Definitions 25 Section 1.03 Rules of Construction 2

Sixth Amendment to Purchase and Sale Agreement, dated as of April 8, 2024, among TXU Receivables, as buyer, TXU Retail, as servicer, certain originators named therein and Credit Agricole Corporate and Investment Bank, as administrator

Exhibit 4.2 EXECUTION VERSION SIXTH AMENDMENT TO PURCHASE AND SALE AGREEMENT This SIXTH AMENDMENT (this “Amendment”), dated as of April 8, 2024, is among TXU ENERGY RETAIL COMPANY LLC, a Texas limited liability company (“TXU”), as Originator and as Servicer (in such capacity, together with its successors and permitted assigns in such capacity, the “Servicer”), TXU ENERGY RECEIVABLES COMPANY LLC, a

TABLE OF CONTENTS FINANCIAL STATEMENTS PAGE Independent Auditor’s Report 1 Consolidated Statements of Income (Loss) and Comprehensive Income (Loss) 3 Consolidated Balance Sheets 4 Consolidated Statements of Cash Flows 5 Consolidated Statements of Cha

Exhibit 99.1 Energy Harbor Corp. and Subsidiaries Consolidated Financial Statements For the Years Ended December 31, 2023 and 2022 TABLE OF CONTENTS FINANCIAL STATEMENTS PAGE Independent Auditor’s Report 1 Consolidated Statements of Income (Loss) and Comprehensive Income (Loss) 3 Consolidated Balance Sheets 4 Consolidated Statements of Cash Flows 5 Consolidated Statements of Changes in Stockholder

Joinder Agreement, dated as of April 8, 2024, among TXU Retail, as seller party agent, Vistra Operations, as guarantor, certain originators named therein, and MUFG, as buyer

Exhibit 10.1 JOINDER AGREEMENT THIS JOINDER AGREEMENT dated as of April 8, 2024 is executed and delivered by each entity identified on the signature page hereto as a “Joining Originator” (the “Joining Originator”), in favor of MUFG Bank, Ltd., a Japanese banking corporation (“Buyer”), with respect to that certain Master Framework Agreement, dated as of October 9, 2020, by and among TXU Energy Reta

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 1, 2024 VISTRA CORP. (Exact

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 1, 2024 VISTRA CORP.

VISTRA CORP. UNAUDITED PRO FORMA COMBINED CONSOLIDATED FINANCIAL INFORMATION

Exhibit 99.2 VISTRA CORP. UNAUDITED PRO FORMA COMBINED CONSOLIDATED FINANCIAL INFORMATION On March 1, 2024, Vistra Corp., a Delaware corporation (“Vistra”) completed its previously announced transaction pursuant to the transaction agreement dated as of March 6, 2023 (the “Transaction Agreement”), by and among Vistra Operations Company, LLC, a Delaware limited liability company (“Parent” or the “Co

Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 8, 2024 VISTRA CORP.

Fourteenth Amendment to Receivables Purchase Agreement, dated as of April 8, 2024, among TXU Receivables, as seller, TXU Retail, as servicer, Vistra Operations Company LLC, as performance guarantor, certain purchaser agents and purchasers named therein and Credit Agricole Corporate and Investment Bank, as administrator

Exhibit 4.1 EXECUTION VERSION FOURTEENTH AMENDMENT TO RECEIVABLES PURCHASE AGREEMENT This FOURTEENTH AMENDMENT (this “Amendment”), dated as of April 8, 2024, is among TXU ENERGY RECEIVABLES COMPANY LLC, a Delaware limited liability company, as seller (the “Seller”), TXU ENERGY RETAIL COMPANY LLC, a Texas limited liability company (“TXU”), as servicer (in such capacity, together with its successors

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant  ☒  Filed by a Party other than the Registrant  ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule

ARS

VISTRA 2023 ANNUAL REPORT A N N U A L R E P O R T 2023Powering a Better Way Forward: Moss Landing Energy Storage Facility With a sharp focus on reliability, affordability, and sustainability, Vistra is responsibly advancing its low and zero-carbon generation portfolio.

Entry into a Material Definitive Agreement

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 26, 2024 VISTRA CORP.

Credit Agreement, dated March 26, 2024, by and among Vistra Zero Operating Company, LLC, the Lenders (as defined in the Credit Agreement) party thereto and Citibank, N.A. (as Administrative Agent and as Collateral Agent)

Exhibit 10.1 Execution Version CREDIT AGREEMENT Dated as of March 26, 2024 among VISTRA ZERO OPERATING COMPANY, LLC, as the Borrower, The Several Lenders and Revolving Letter of Credit Issuers from Time to Time Parties Hereto, CITIBANK, N.A., as Administrative Agent and Collateral Agent and CITIBANK, N.A., BARCLAYS BANK PLC, BMO CAPITAL MARKETS CORP., BNP PARIBAS SECURITIES CORP., BOFA SECURITIES,

FOR IMMEDIATE PUBLICATION Vistra Announces Expansion of its Board of Directors with the Appointment of Bill Pitesa

Exhibit 99.2 FOR IMMEDIATE PUBLICATION Vistra Announces Expansion of its Board of Directors with the Appointment of Bill Pitesa IRVING, Texas — March 7, 2024 — Vistra (NYSE: VST) today announced a new addition to its board of directors following the closing of the Energy Harbor acquisition. Effective today, John W. (Bill) Pitesa, a former chief nuclear officer for Duke Energy with more than 40 yea

FOR IMMEDIATE PUBLICATION Vistra Completes Energy Harbor Acquisition Combination creates leading integrated zero-carbon generation and retail electricity platform

Exhibit 99.1 FOR IMMEDIATE PUBLICATION Vistra Completes Energy Harbor Acquisition Combination creates leading integrated zero-carbon generation and retail electricity platform IRVING, Texas — March 1, 2024 — Today, Vistra (NYSE: VST) announced that it has completed the acquisition of Energy Harbor Corp., growing its leading integrated zero-carbon generation and retail electricity business with the

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 1, 2024 VISTRA CORP. (Exact name of registrant as specified in its charter) Delaware 001-38086 36-4833255 (State or other jurisdiction of incorporation or organization) (Commiss

Amended and Restated Limited Liability Company Agreement of Vistra Vision LLC, dated March 1, 2024

Exhibit 10.1 AMENDED AND RESTATED LIMITED LIABILITY COMPANY AGREEMENT OF VISTRA VISION LLC A Delaware Limited Liability Company March 1, 2024 THE SECURITIES REPRESENTED BY THIS AGREEMENT HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933 OR REGISTERED OR QUALIFIED UNDER ANY SECURITIES OR BLUE SKY LAWS OF ANY STATE OR JURISDICTION. THEREFORE, THE SECURITIES MAY NOT BE SOLD, PLEDGED, HYPOTHEC

Description of Capital Stock

Exhibit 4.104 Description of Capital Stock The following description of Vistra Corp.’s (the “Company,” “we” or “us”) capital stock is a summary and does not purport to be complete. It is subject to and qualified in its entirety by reference to the Company’s Certificate of Incorporation (as amended, the “Charter”), the Company’s Restated Bylaws (“Bylaws”), each of which are incorporated by referenc

Mine Safety Disclosures

Exhibit 95.1 Mine Safety Disclosures Safety is a top priority in all our businesses, and accordingly, it is a key component of our focus on operational excellence, our employee performance reviews and employee compensation. Our health and safety program objectives are to prevent workplace accidents and ensure that all employees return home safely and comply with all regulations. Vistra currently o

Amended and Restated Employment Agreement, dated as of May 5, 2022, between Scott A. Hudson, Vistra Corp. and Vistra Corporate Services Company

Exhibit 10.19 AMENDED AND RESTATED EMPLOYMENT AGREEMENT This AMENDED AND RESTATED EMPLOYMENT AGREEMENT (this “Agreement”), dated as of May 5, 2022 (the “Effective Date”), is between Vistra Corp., TXU Retail Services Company (together, the “Company”), and Scott A. Hudson (“Executive”). Recitals: WHEREAS, the Company and Executive previously entered into an agreement effective as of March 1, 2018 (t

Amended and Restated Employment Agreement, dated as of May 5, 2022, between Stephen J. Muscato, Vistra Corp. and Vistra Corporate Services Company

Exhibit 10.20 AMENDED AND RESTATED EMPLOYMENT AGREEMENT This AMENDED AND RESTATED EMPLOYMENT AGREEMENT (this “Agreement”), dated as of May 5, 2022 (the “Effective Date”), is between Vistra Corp., Luminant Energy Company LLC (together, the “Company”), and Stephen J. Muscato (“Executive”). Recitals: WHEREAS, the Company and Executive previously entered into an agreement effective as of March 9, 2018

Significant Subsidiaries of Vistra Corp.

Exhibit 21.1 Significant Subsidiaries of Vistra Corp. As of December 31, 2023 SUBSIDIARY STATE OR COUNTRY OF INCORPORATION OR ORGANIZATION 1 Ambit Energy Holdings, LLC Texas 2 Ambit Holdings, LLC Texas 3 Ambit Northeast, LLC Delaware 4 Ambit Texas, LLC Texas 5 Comanche Peak Power Company LLC Delaware 6 Crius Energy, LLC Delaware 7 Crius Energy Holdings, LLC Delaware 8 Dynegy Coal Holdco, LLC Delaw

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2023 — OR — ☐ TRANSITION REPORT PURSUANT T

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE FISCAL YEAR ENDED DECEMBER 31, 2023 — OR — ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-38086 Vist

Vistra Corp.

Exhibit 97.1 Vistra Corp. CLAWBACK POLICY I. SCOPE The Clawback Policy (this “Policy”) applies to the current and former executive officers of Vistra Corp. (the “Company”), as determined by the Social Responsibility and Compensation Committee of the Board of Directors of the Company (the “Committee”) in accordance with Section 10D of the Securities Exchange Act of 1934, as amended (the “Exchange A

Amended and Restated Employment Agreement, dated as of May 5, 2022, between Stephanie Zapata Moore, Vistra Corp. and Vistra Corporate Services Company

Exhibit 10.17 AMENDED AND RESTATED EMPLOYMENT AGREEMENT This AMENDED AND RESTATED EMPLOYMENT AGREEMENT (this “Agreement”), dated as of May 5, 2022 (the “Effective Date”), is between Vistra Corp., Vistra Corporate Services Company (together, the “Company”), and Stephanie Zapata Moore (“Executive”). Recitals: WHEREAS, the Company and Executive previously entered into an employment agreement original

Employment Agreement, dated as of August 23, 2022, between Stacey Doré, Vistra Corp. and Vistra Corporate Services Company

Exhibit 10.21 EMPLOYMENT AGREEMENT This EMPLOYMENT AGREEMENT (“Agreement”), executed on August 8, 2022 and effective as of August 23, 2022 (the “Effective Date”), is between Vistra Corp., Vistra Corporate Services Company (together, the “Company”), and Stacey Doré (“Executive”). Recitals: WHEREAS, the Company and Executive desire to enter into a written employment agreement to reflect the terms up

Second Amended and Restated Employment Agreement, dated March 20, 2022, between James A. Burke and Vistra Corp.

Exhibit 10.15 SECOND AMENDED AND RESTATED EMPLOYMENT AGREEMENT This SECOND AMENDED AND RESTATED EMPLOYMENT AGREEMENT (this “Agreement”), dated as of March 20, 2022, is between Vistra Corp. (the “Company”) and James A. Burke (“Executive”). Recitals: WHEREAS, the Company and Executive previously entered into an employment agreement effective as of October 4, 2016 (the “Original Effective Date”); WHE

Employment Agreement, dated as of July 20, 2022, between Kristopher E. Moldovan, Vistra Corp. and Vistra Corporate Services Company

Exhibit 10.16 EMPLOYMENT AGREEMENT This EMPLOYMENT AGREEMENT (“Agreement”), executed on July 20, 2022 and effective as of August 1, 2022 (the “Effective Date”), is between Vistra Corp., Vistra Corporate Services Company (together, the “Company”), and Kristopher E. Moldovan (“Executive”). Recitals: WHEREAS, the Company and Executive desire to enter into a written employment agreement to reflect the

Amended and Restated Employment Agreement, dated as of May 5, 2022, between Carrie Lee Kirby, Vistra Corp. and Vistra Corporate Services Company

Exhibit 10.18 AMENDED AND RESTATED EMPLOYMENT AGREEMENT This AMENDED AND RESTATED EMPLOYMENT AGREEMENT (this “Agreement”), dated as of May 5, 2022 (the “Effective Date”), is between Vistra Corp., Vistra Corporate Services Company (together, the “Company”), and Carrie Lee Kirby (“Executive”). Recitals: WHEREAS, the Company and Executive previously entered into an employment agreement originally eff

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 28, 2024 VISTRA CORP. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 28, 2024 VISTRA CORP.

Vistra Reports Full-Year 2023 Results, Announces Expected Closing of Energy Harbor Transaction On March 1, 2024

Exhibit 99.1 NEWS RELEASE Vistra Reports Full-Year 2023 Results, Announces Expected Closing of Energy Harbor Transaction On March 1, 2024 Earnings Release Highlights • GAAP full-year 2023 Net Income of $1,492 million and Cash Flow from Operations of $5,453 million. • Net Income from Ongoing Operations1 of $1,498 million, Ongoing Operations Adjusted EBITDA1 of $4,140 million, $440 million higher th

FOR IMMEDIATE PUBLICATION Vistra Receives Approval from Federal Energy Regulatory Commission on Energy Harbor Acquisition This marks the final regulatory approval needed in the acquisition process

Exhibit 99.1 FOR IMMEDIATE PUBLICATION Vistra Receives Approval from Federal Energy Regulatory Commission on Energy Harbor Acquisition This marks the final regulatory approval needed in the acquisition process IRVING, Texas — Feb. 19, 2024 — Vistra (NYSE: VST) has now received approval from the Federal Energy Regulatory Commission (FERC) to acquire Energy Harbor. Vistra announced last March that t

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 19, 2024 VISTRA CORP.

VST / Vistra Corp. / BROOKFIELD ASSET MANAGEMENT INC. - SC 13G/A Passive Investment

SC 13G/A 1 ef20021367sc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 6) Vistra Corp. (Name of Issuer) Common Stock, par value $0.01 per share (Title of Class of Securities) 92840M102 (CUSIP Number) December 31, 2023 (Date of Event Which Requires Filing of this Statement) Check the appr

VST / Vistra Corp. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7)* Name of issuer: Vistra Corp Title of Class of Securities: Common Stock CUSIP Number: 92840M102 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: ☒ Rule 13

VST / Vistra Corp. / FMR LLC Passive Investment

SCHEDULE 13G Amendment No.5 VISTRA CORP COMMON STOCK Cusip #92840M102 Check the appropriate box to designate the rule pursuant to which this Schedule is filed: [x] Rule 13d-1(b) [ ] Rule 13d-1(c) [ ] Rule 13d-1(d) Cusip #92840M102 Item 1: Reporting Person - FMR LLC Item 2: (a) [ ] (b) [ ] Item 4: Delaware Item 5: 17,337,417 Item 6: 0 Item 7: 17,690,079 Item 8: 0 Item 9: 17,690,079 Item 11: 4.947%

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form S-3 REGISTRATION STATEMENT THE SECURITIES ACT OF 1933 VISTRA CORP. (Exact Name of Registrant as Specified in its Charter) Delaware 4911 36-4833255 (State or Other Jurisdicti

S-3ASR Table of Contents Registration No.       UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form S-3 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 VISTRA CORP. (Exact Name of Registrant as Specified in its Charter) Delaware 4911 36-4833255 (State or Other Jurisdiction of Incorporation or Organization) (Primary Standard Industrial Classification Code Number) (I

January 26, 2024

RW January 26, 2024 VIA EDGAR Division of Corporate Finance Securities and Exchange Commission 100 F Street, N.

Filing Fee Table.

Exhibit 107.1 CALCULATION OF FILING FEE TABLES FORM S-3 REGISTRATION STATEMENT (Form Type) Vistra Corp. (Exact Name of registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price per Share Proposed Maximum Aggregate Offering Price Fee Rate Am

VST / Vistra Corp. / BlackRock Inc. Passive Investment

SC 13G/A 1 us92840m1027012424.txt us92840m1027012424.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No: 1) Vistra Corp. - (Name of Issuer) Common Stock - (Title of Class of Securities) 92840M102 - (CUSIP Number) December 31, 2023 - (Date of Event Which Requires Filing of this Statement) Check the appropriate box to de

TABLE OF CONTENTS FINANCIAL STATEMENTS PAGE Independent Auditor’s Report 1 Consolidated Statements of Operations and Comprehensive Income (Loss) 3 Consolidated Balance Sheets 4 Consolidated Statements of Cash Flows 5 Consolidated Statements of Change

Exhibit 99.1 Energy Harbor Corp. and Subsidiaries Consolidated Financial Statements For the Years Ended December 31, 2022 and 2021 TABLE OF CONTENTS FINANCIAL STATEMENTS PAGE Independent Auditor’s Report 1 Consolidated Statements of Operations and Comprehensive Income (Loss) 3 Consolidated Balance Sheets 4 Consolidated Statements of Cash Flows 5 Consolidated Statements of Changes in Stockholders’

As filed with the Securities and Exchange Commission on January 23, 2024

S-3 Table of Contents As filed with the Securities and Exchange Commission on January 23, 2024 Registration No.

Filing Fee Table.

Exhibit 107.1 CALCULATION OF FILING FEE TABLES FORM S-3 REGISTRATION STATEMENT (Form Type) Vistra Corp. (Exact Name of registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price per Share Proposed Maximum Aggregate Offering Price Fee Rate Am

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 23, 2024 VISTRA CORP.

EX-99.25

NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES The New York Stock Exchange ("NYSE" or the "Exchange") hereby notifies the Securities and Exchange Commission (the "Commission") of its intention to remove the entire class of the Warrants to Purchase Common Stock (the "Warrants") of Vistra Corp.

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Entry into a Material Definitive Agreement, Material Modification to Rights of Security Holders, Unregistered Sales of Equity Securities, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 29, 2023 VISTRA CORP.

Series C Preferred Stock Certificate of Designation filed with the Secretary of State of Delaware on December 29, 2023

Exhibit 3.1 Delaware The First State Page 1 I, JEFFREY W. BULLOCK, SECRETARY OF STATE OF THE STATE OF DELAWARE, DO HEREBY CERTIFY THE ATTACHED IS A TRUE AND CORRECT COPY OF THE CERTIFICATE OF DESIGNATION OF “VISTRA CORP.”, FILED IN THIS OFFICE ON THE TWENTY-NINTH DAY OF DECEMBER, A.D. 2023, AT 4:39 O`CLOCK P.M. /s/ Jeffrey W. Bullock Jeffrey W. Bullock, Secretary of State 5985588 8100 SR# 20234375

Amended and Restated Tax Receivable Agreement, dated December 29, 2023, by and between the Company and Equiniti Trust Company, LLC

Exhibit 10.1 Execution Version AMENDED AND RESTATED TAX RECEIVABLE AGREEMENT by and between Vistra Corp. and Equiniti Trust Company, LLC, as Transfer Agent dated as of December 29, 2023 TABLE OF CONTENTS Page ARTICLE I DEFINITIONS 1 Section 1.1 Definitions 1 Section 1.2 Interpretive Provisions 13 Section 1.3 Times of Day 15 Section 1.4 Timing of Payment or Performance 15 Section 1.5 Certifications

Vistra Announces Pricing Terms of Cash Tender Offer for Senior Secured Notes

EX-99.2 Exhibit 99.2 Vistra Announces Pricing Terms of Cash Tender Offer for Senior Secured Notes IRVING, Texas, December 26, 2023 — Vistra Corp. (NYSE: VST) (“Vistra”) announced today the pricing terms of its previously announced cash tender offers (the “Tender Offers”) to purchase a portion of Vistra’s outstanding 3.550% Senior Secured Notes due 2024 (“3.550% 2024 Notes”), 4.875% Senior Secured

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 22, 2023 VISTRA CORP. (Exa

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 22, 2023 VISTRA CORP.

Vistra Announces Early Results of Cash Tender Offer for Senior Secured Notes

EX-99.1 Exhibit 99.1 Vistra Announces Early Results of Cash Tender Offer for Senior Secured Notes IRVING, Texas, December 26, 2023 — Vistra Corp. (NYSE: VST) (“Vistra”) announced today the results to date of its previously announced cash tender offers (the “Tender Offers”) to purchase a portion of Vistra’s outstanding 3.550% Senior Secured Notes due 2024 (“3.550% 2024 Notes”), 4.875% Senior Secure

Fifteenth Amendment to the Credit Agreement, dated December 20, 2023, by and among Vistra Operations Company LLC (as Borrower), Vistra Intermediate Company LLC (as Holdings), the 2023 Incremental Term Loan Lender, the other Credit Parties (as defined in the Credit Agreement) party thereto, the other lenders party thereto, and Credit Suisse AG, Cayman Islands Branch (as Administrative Agent and as Collateral Agent)

EX-10.1 Exhibit 10.1 FIFTEENTH AMENDMENT TO CREDIT AGREEMENT THIS FIFTEENTH AMENDMENT TO CREDIT AGREEMENT, dated as of December 20, 2023 (including the annexes, schedules, exhibits and other attachments hereto, this “Fifteenth Amendment”), by and among Vistra Operations Company LLC, a Delaware limited liability company (the “Borrower”), Vistra Intermediate Company LLC, a Delaware limited liability