Exhibit 99.1 MGM RESORTS INTERNATIONAL REPORTS FIRST QUARTER 2026 FINANCIAL AND OPERATING RESULTS Las Vegas, Nevada, April 29, 2026 – MGM Resorts International (NYSE: MGM) ("MGM Resorts" or the "Company") today reported financial results for the quarter ended March 31, 2026. "We are pleased to report record 1Q consolidated net revenues driven primarily by MGM China and MGM Digital, as well as growth at our BetMGM North America Venture," said Bill Hornbuckle, President and CEO of MGM Resorts International. " ...