Tranche Update on Mercantile Bank Corporation's Equity Buyback Plan announced on May 27, 2021.

Mercantile Bank Corporation is the bank holding company for Mercantile Bank (The Bank). The Bank is a state banking company that provides commercial banking services primarily to small- to medium-sized businesses and retail banking services. Its operations are centered around the West and Central portions of Michigan. It also has banking offices located in the metropolitan Detroit, Michigan area, Traverse City, Michigan, Saginaw, Michigan, and Midland, Michigan. It makes secured and unsecured commercial, construction, mortgage and consumer loans, and accepts checking, savings and time deposits. It also enables customers to conduct certain loan and deposit transactions by personal computer and through mobile applications. Its insurance product offerings include private passenger automobiles, homeowners, personal inland marine, boat owners, recreational vehicles, dwelling fire, umbrella policies, small businesses, and life insurance products.