Exhibit 99.1 A.B. Mendez Investor Relations 210.220.5234 or Bill Day Media Relations 210.220.5427 FOR IMMEDIATE RELEASE January 30, 2025 interest income for the fourth quarter of 2024 compared to the fourth quarter of 2023. The decrease was mainly driven by a $3.6 million benefit from a wire fraud recovery during the fourth quarter of 2023. CULLEN/FROST REPORTS FOURTH QUARTER AND 2024 ANNUAL RESULTS Board declares first quarter dividend on common and preferred stock, and authorizes $150 million stock repurc ...