144 0001940494 XXXXXXXX LIVE 0001692819 Vistra Corp. 001-38086 6555 SIERRA DRIVE IRVING TX 75039 214-812-4600 Moldovan Kristopher E. Officer Common UBS Financial Services Inc.

11 Madison Avenue 4th Floor New York NY 10010

20000 3020600.00 335635195 09/08/2026 NYSE Common 02/24/2026 PSU Issuer N 20000 02/24/2026 N/A Y The shares covered under this filing are being sold by the Moldovan Family Living Trust UAD 10/08/2025. 09/08/2026 05/21/2026 /s/ UBS Financial Services Inc, as attorney-in-fact for Kristopher Moldovan