X0306 4 2022-02-22 0 0001692819 Vistra Corp. VST 0001268406 BURKE JAMES A 6555 SIERRA DRIVE IRVING TX 75039 0 1 0 0 President and CFO Common Stock 2022-02-22 4 F 0 6296 21.21 D 101260 D Common Stock 2022-02-22 4 A 0 42356 0.00 A 143616 D Common Stock 296127 I By JAMEB, LP, a limited partnership jointly owned by Reporting Person and his spouse Common Stock 259 I By the Marti E. Burke 2012 Irrevocable Trust, dated 10/16/2012 This transaction represents the withholding by the Issuer of shares to pay taxes in connection with the vesting of restricted stock units. The timing and amount of the transaction were determined by the terms of the applicable restricted stock unit award and were not within the control of the Reporting Person. Represents performance-based restricted stock units for which the applicable performance criteria for the three-year period ended December 31, 2021 was certified by the Issuer's Social Responsibility and Compensation Committee of the Board of Directors as of February 22, 2022. This amended Form 4 reflects a downward adjustment of 1 share to correct a clerical error regarding the number of securities beneficially owned by the Reporting Person that was originally reported on the Form 4 filed August 29, 2018. /s/ Yuki Whitmire, as Attorney-in-Fact 2022-02-24