X0508 4 2023-08-01 0 0001692819 Vistra Corp. VST 0001268406 BURKE JAMES A 6555 SIERRA DRIVE IRVING TX 75039 1 1 0 0 President and CEO 0 Common Stock 2023-08-01 4 F 0 3806 27.89 D 213398 D Common Stock 463899 I By JAMEB, LP, a limited partnership jointly owned by Reporting Person and his spouse Common Stock 34000 I By the James A. Burke 2012 Irrevocable Trust, dated 12/03/2012 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. /s/ Yuki Whitmire, as Attorney-in-Fact 2023-08-03