Offering no specific reason for his early departure, Grant Thornton says Mike McGuire is stepping aside as CEO.

McGuire will become โ€œCEO emeritusโ€ effective Aug. 1, 2019, and his duties will be assumed immediately by interim CEO-elect Bradley Preber. McGuire will serve as a โ€œbrand ambassadorโ€ for the firm, focusing on leadership transition, business development, and supporting key client relationships, the firm said.