Mercantile Bank CORP (MBWM) SEC Filings — 2008 0 SEC filings for Mercantile Bank CORP (MBWM) in 2008. FilingsNo filings found for MBWM in 2008. ExploreAll MBWM Filings · MBWM 2007 · MBWM 2009 · All 2008 Filings