On December 12, 2018, Thomas R. Sullivan announced his intention to retire from the Board of Directors of Mercantile Bank Corporation, and that of its subsidiary, Mercantile Bank of Michigan, effective January 1, 2019. Mr. Sullivan has served as a member of the Boards since 2014. Mr. Sullivan's retirement is not a result of disagreement on any matter relating to Mercantile's operations, policies or practices.