Item 5.02 Departure of Directors or Certain Officers; Election of Directors;
Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.
Retirement of Director. On January 22, 2013, our director, Lawrence W. Larsen,
advised us that he intends to retire from our Board of Directors, and that of
our subsidiary, Mercantile Bank of Michigan, effective immediately. Mr. Larsen
has served as a member of our Board of Directors since 1997. Mr. Larsen's
decision to retire is not a result of any disagreement with us relating to our
operations, policies or practices.