Mercantile Bank Corporation

MBWM·NASDAQ·$52.89Share Price as of 11/2·$914MMarket Cap as of 11/2

Financials

10-QQ3 ended 09/30/2610/30/26 10-QQ2 ended 06/30/2607/31/26 10-QQ1 ended 03/31/2605/01/26 10-KFY 202502/27/26 10-QQ3 ended 09/30/2510/31/25

Disclosures

8-KCurrent report10/20/26 8-KCurrent report09/25/26 8-KCurrent report07/21/26 8-KCurrent report05/21/26 8-KCurrent report04/21/26

Prospectuses and Registrations

S-3ASRAutomatic shelf registration09/29/26 424B3Prospectus11/14/25 S-4/ARegistration (business combination, amended)10/21/25 S-4Registration (business combination)09/16/25 S-8Registration of securities for employees06/13/25

Proxies

DEF 14ADefinitive proxy04/02/26 DEF 14ADefinitive proxy04/04/25 DEF 14ADefinitive proxy04/04/24 DEF 14ADefinitive proxy04/14/23 DEFA14AAdditional proxy materials05/16/22

Ownership

Form 4Insider transaction10/26/26 Form 4Insider transaction05/27/26 Form 4Insider transaction05/27/26 Form 4Insider transaction05/27/26 Form 4Insider transaction05/27/26

Other

11-KEmployee stock purchase plan report05/27/26 ARSAnnual report to shareholders04/02/26 UPLOADLetter from the SEC09/19/25 42542507/29/25 11-KEmployee stock purchase plan report06/10/25