On January 23, 2018, the Board of Directors of Comerica Incorporated appointed Mauricio A. Ortiz to serve as Chief Accounting Officer, effective January 23, 2018. In such capacity, Mr. Ortiz will also serve as the company's principal accounting officer. The corporation previously disclosed, in a Form 8-K filed on November 8, 2017, that Muneera S. Carr, the prior Chief Accounting Officer, was being promoted to Chief Financial Officer on January 23, 2018. Mr. Ortiz has been selected as her successor in the role of Chief Accounting Officer. Mr. Ortiz has been with the Corporation since May 2010. He had been Senior Vice President and Assistant Controller since February 2015. He served as Assistant Vice President (July 2010 to July 2011) and as Vice President (July 2011 to February 2015) in Accounting Policy and Research.