Exhibit 99.1 RAPT Therapeutics Reports First Quarter 2025 Financial Results SOUTH SAN FRANCISCO, Calif. – May 8, 2025 – RAPT Therapeutics, Inc. (Nasdaq: RAPT) ("RAPT" or the "Company"), a clinical-stage immunology-based biopharmaceutical company focused on discovering, developing and commercializing novel therapies for patients living with inflammatory and immunological diseases, today reported financial results for the first quarter ended March 31, 2025. "The year is off to a great start. We believe RPT904 ...