Exhibit 99.1 News Release Investor Contact Matt Lee Sr. Vice President, Finance and Investor Relations Dine Brands Global, Inc. IR@dinebrands.com Media Contact Susan Nelson Sr. Vice President, Global Communications Dine Brands Global, Inc. Mediainquiries@dinebrands.com Page 1 of 13 • Applebee's year-over-year comparable domestic same-restaurant sales increased 1.9% for the first quarter of 2026. Off-premise sales accounted for 23.9% of sales mix in the first quarter of 2026. • IHOP's year-over-year domestic ...