Vistra(VST) - 2025 Q4 - Annual Results

Exhibit 99.1 Vistra Reports Fourth Quarter and Full-Year 2025 Results Earnings Release Highlights IRVING, Texas — Feb. 26, 2026 — Vistra Corp. (NYSE: VST) today reported its fourth quarter and full-year 2025 financial results and other highlights. "I am proud of the 2025 performance of our Vistra team – this was truly a transformational year for our company," said Jim Burke, president and CEO of Vistra. "With our One Team mindset, we achieved several strategic milestones, including a 20-year power purchase ...