FOR MORE INFORMATION CONTACT: Exhibit 99.1 Wintrust Financial Corporation 9700 W. Higgins Road, Suite 800, Rosemont, Illinois 60018 News Release FOR IMMEDIATE RELEASE July 21, 2025 David A. Dykstra, Vice Chairman & Chief Operating Officer (847) 939-9000 Amy Yuhn, Executive Vice President, Communications (847) 939-9591 Web site address: www.wintrust.com Wintrust Financial Corporation Reports Record Net Income ROSEMONT, ILLINOIS – Wintrust Financial Corporation ("Wintrust", "the Company", "we" or "our") (Nasd ...