Exhibit 99.1 WK Kellogg Co Financial News Release Analyst Contact: Karen Duke (269) 401-3164 Media Contact: Stacy Flathau (269) 401-3002 WK Kellogg Co Announces First Quarter 2025 Results and Updates 2025 Outlook BATTLE CREEK, Mich. - May 6, 2025 - WK Kellogg Co (NYSE: KLG) today reported financial results for its first quarter 2025 and updated its full year 2025 financial outlook. First Quarter Financial Highlights: "Despite the lower than expected first quarter performance which resulted in revising our 2 ...