Exhibit 99.1 Celcuity Inc. Reports Second Quarter 2025 Financial Results and Provides Corporate Update MINNEAPOLIS, August 14, 2025 — Celcuity Inc. (Nasdaq: CELC), a clinical-stage biotechnology company pursuing development of targeted therapies for oncology, today announced financial results for the second quarter ended June 30, 2025 and other recent business developments. "We have had an eventful past few months at Celcuity. Last month, we announced positive topline data from the PIK3CA wild-type cohort o ...