<SEC-DOCUMENT>0001437749-25-029168-index.html : 20250916 <SEC-HEADER>0001437749-25-029168.hdr.sgml : 20250916 <ACCEPTANCE-DATETIME>20250916161906 ACCESSION NUMBER: 0001437749-25-029168 CONFORMED SUBMISSION TYPE: S-4 PUBLIC DOCUMENT COUNT: 25 FILED AS OF DATE: 20250916 DATE AS OF CHANGE: 20250916 FILER: COMPANY DATA: COMPANY CONFORMED NAME: MERCANTILE BANK CORP CENTRAL INDEX KEY: 0001042729 STANDARD INDUSTRIAL CLASSIFICATION: STATE COMMERCIAL BANKS [6022] ORGANIZATION NAME: 02 Finance EIN: 383360865 STATE OF INCORPORATION: MI FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: S-4 SEC ACT: 1933 Act SEC FILE NUMBER: 333-290303 FILM NUMBER: 251317538 BUSINESS ADDRESS: STREET 1: 310 LEONARD STREET NW CITY: GRAND RAPIDS STATE: MI ZIP: 49504 BUSINESS PHONE: 616 406-3000 MAIL ADDRESS: STREET 1: 310 LEONARD STREET NW CITY: GRAND RAPIDS STATE: MI ZIP: 49504 </SEC-HEADER> <DOCUMENT> <TYPE>S-4 <SEQUENCE>1 <FILENAME>mbwm20250912_s4.htm <DESCRIPTION>FORM S-4 <TEXT> Document 1 - file: mbwm20250912_s4.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-21.1 <SEQUENCE>2 <FILENAME>ex_861806.htm <DESCRIPTION>EXHIBIT 21.1 <TEXT> Document 2 - file: ex_861806.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-23.1 <SEQUENCE>3 <FILENAME>ex_861235.htm <DESCRIPTION>EXHIBIT 23.1 <TEXT> Document 3 - file: ex_861235.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-23.2 <SEQUENCE>4 <FILENAME>ex_861236.htm <DESCRIPTION>EXHIBIT 23.2 <TEXT> Document 4 - file: ex_861236.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-99.1 <SEQUENCE>5 <FILENAME>ex_861237.htm <DESCRIPTION>EXHIBIT 99.1 <TEXT> Document 5 - file: ex_861237.htm
</DOCUMENT> <DOCUMENT> <TYPE>EX-FILING FEES <SEQUENCE>6 <FILENAME>ex_861238.htm <DESCRIPTION>EXHIBIT FILING FEES <TEXT> Document 6 - file: ex_861238.htm
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>7 <FILENAME>coverpagelogos.jpg <TEXT> Document 7 - file: coverpagelogos.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>8 <FILENAME>piper.jpg <TEXT> Document 8 - file: piper.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>9 <FILENAME>piperlogo1.jpg <TEXT> Document 9 - file: piperlogo1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>10 <FILENAME>piperlogo.jpg <TEXT> Document 10 - file: piperlogo.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>11 <FILENAME>pipersig.jpg <TEXT> Document 11 - file: pipersig.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>12 <FILENAME>plante1.jpg <TEXT> Document 12 - file: plante1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>13 <FILENAME>plante.jpg <TEXT> Document 13 - file: plante.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>14 <FILENAME>ps2.jpg <TEXT> Document 14 - file: ps2.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>15 <FILENAME>ps3.jpg <TEXT> Document 15 - file: ps3.jpg
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>17 <FILENAME>R1.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 17 - file: R1.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>18 <FILENAME>R2.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 18 - file: R2.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>19 <FILENAME>R3.htm <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 19 - file: R3.htm
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>20 <FILENAME>Show.js <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 20 - file: Show.js
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>21 <FILENAME>report.css <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 21 - file: report.css
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>23 <FILENAME>FilingSummary.xml <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 23 - file: FilingSummary.html
Document 23 - RAW XML: FilingSummary.xml
</DOCUMENT> <DOCUMENT> <TYPE>JSON <SEQUENCE>26 <FILENAME>MetaLinks.json <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 26 - file: MetaLinks.json
</DOCUMENT> <DOCUMENT> <TYPE>ZIP <SEQUENCE>27 <FILENAME>0001437749-25-029168-xbrl.zip <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 27 - file: 0001437749-25-029168-xbrl.zip
</DOCUMENT> <DOCUMENT> <TYPE>XML <SEQUENCE>28 <FILENAME>ex_861238_htm.xml <DESCRIPTION>IDEA: XBRL DOCUMENT <TEXT> Document 28 - file: ex_861238_htm.html
Document 28 - RAW XML: ex_861238_htm.xml
</DOCUMENT> </SEC-DOCUMENT>