X0306 4 2022-03-04 0 0001692819 Vistra Corp. VST 0001703634 Moore Stephanie Zapata 6555 SIERRA DRIVE IRVING TX 75039 0 1 0 0 EVP and General Counsel Common Stock 2022-03-04 4 A 0 31234 0.00 A 146102 D In connection with the annual grant of equity awards, the grant of the reported restricted stock units to the Reporting Person was approved by Issuer's Social Responsibility and Compensation Committee of Board of Directors on February 22, 2022. The transaction date reflects the date on which the awards became effective in the Issuer's third-party vendor's system. /s/ Yuki Whitmire, as Attorney-in-Fact 2022-03-08