MBWM · Nasdaq · CIK 0001042729

MERCANTILE BANK CORP

MERCANTILE BANK CORP’s most recent SEC filing in our snapshot is a Form 4 filed on Oct 26, 2026. In fiscal 2025 (year ended Dec 31, 2025) it reported revenue of $330.2M and net income of $88.8M, according to its XBRL data on EDGAR. Its EDGAR record lists 24 Form 4 insider filings from the 12 months before our last refresh.

SEC EDGAR snapshot updated Oct 27, 2026, 11:27 PM EDT. See all filings on sec.gov.

Revenue, FY2025
$330.2M
Net income, FY2025
$88.8M
Form 4 filings on record, past 12 months
24

Company overview

Legal name (as filed)
MERCANTILE BANK CORP
Ticker
MBWM
SEC Central Index Key (CIK)
0001042729
Industry (SIC)
State Commercial Banks (code 6022)
Business address
GRAND RAPIDS, MI
State or country of incorporation
MI
Fiscal year ends
December 31
SEC filer category
Large accelerated filer
Position in SEC ticker list
#2403 of the 3,000 companies we track

Five-year financial highlights

Full-year figures from MERCANTILE BANK CORP’s annual reports, as tagged in XBRL and published by the SEC. Amounts are in U.S. dollars; the fiscal year is named for the calendar year in which it ends.

Revenue
$143.5MFY2021$181.8MFY2022$271.4MFY2023$321.5MFY2024$330.2MFY2025
Net income
$59.0MFY2021$61.1MFY2022$82.2MFY2023$79.6MFY2024$88.8MFY2025
MBWM annual results
ItemFY2021
ended Dec 31, 2021		FY2022
ended Dec 31, 2022		FY2023
ended Dec 31, 2023		FY2024
ended Dec 31, 2024		FY2025
ended Dec 31, 2025
Revenue$143.5M$181.8M$271.4M$321.5M$330.2M
Net income$59.0M$61.1M$82.2M$79.6M$88.8M
Diluted EPS$3.69$3.85$5.13$4.93$5.47
Total assets$5.3B$4.9B$5.4B$6.1B$6.8B
Cash and equivalents$59.4M$61.9M$70.4M$57.0M$54.8M

XBRL tags used: revenue = InterestAndDividendIncomeOperating; netIncome = NetIncomeLoss; assets = Assets; eps = EarningsPerShareDiluted; cash = CashAndDueFromBanks. EPS is shown as originally reported for each year and may not be adjusted for later stock splits. A dash means the company did not report that item in a form we could match.

How to read these numbers

Revenue is the money a company brings in from selling its products and services; net income is what is left after all expenses, interest and taxes. Diluted EPS spreads net income across every share that could exist if options and convertible securities were exercised. Total assets and cash are balance-sheet figures measured on the last day of the fiscal year. For the full story — segment results, one-time charges, guidance — read Management’s Discussion and Analysis in the Form 10-K.

Latest key reports

The most recent filing of each major report type, even if it falls outside the 40 newest filings below.

MBWM latest annual, quarterly, current and proxy reports
FiledFormWhat it isOriginal
Feb 27, 202610-KAnnual report· period Dec 31, 2025Document · Index
Jul 31, 202610-QQuarterly report· period Jun 30, 2026Document · Index
Oct 20, 20268-KResults of operations; Regulation FD disclosure· period Oct 20, 2026Document · Index
Apr 2, 2026DEF 14ADefinitive proxy statement· period May 21, 2026Document · Index

Recent SEC filings

The 40 newest documents filed by or about MERCANTILE BANK CORP, by form type:

4 ×228-K ×710-Q ×2SCHEDULE 13G/A ×2S-3ASR ×111-K ×1SCHEDULE 13G ×1DEF 14A ×1ARS ×110-K ×18-K/A ×1
MBWM recent filings
FiledFormWhat it isOriginal
Oct 26, 20264Statement of changes in beneficial ownership (insider trade)· period Oct 22, 2026Document · Index
Oct 20, 20268-KResults of operations; Regulation FD disclosure· period Oct 20, 2026Document · Index
Sep 29, 2026S-3ASRSimplified registration statementDocument · Index
Sep 25, 20268-KDirector or officer change· period Sep 25, 2026Document · Index
Jul 31, 202610-QQuarterly report· period Jun 30, 2026Document · Index
Jul 21, 20268-KResults of operations; Regulation FD disclosure· period Jul 21, 2026Document · Index
May 27, 20264Statement of changes in beneficial ownership (insider trade)· period May 22, 2026Document · Index
May 27, 20264Statement of changes in beneficial ownership (insider trade)· period May 22, 2026Document · Index
May 27, 20264Statement of changes in beneficial ownership (insider trade)· period May 22, 2026Document · Index
May 27, 20264Statement of changes in beneficial ownership (insider trade)· period May 22, 2026Document · Index
May 27, 20264Statement of changes in beneficial ownership (insider trade)· period May 22, 2026Document · Index
May 27, 20264Statement of changes in beneficial ownership (insider trade)· period May 22, 2026Document · Index
May 27, 20264Statement of changes in beneficial ownership (insider trade)· period May 22, 2026Document · Index
May 27, 20264Statement of changes in beneficial ownership (insider trade)· period May 22, 2026Document · Index
May 27, 20264Statement of changes in beneficial ownership (insider trade)· period May 22, 2026Document · Index
May 27, 202611-KAnnual report of employee stock plans· period Dec 31, 2025Document · Index
May 27, 20264Statement of changes in beneficial ownership (insider trade)· period May 22, 2026Document · Index
May 27, 20264Statement of changes in beneficial ownership (insider trade)· period May 22, 2026Document · Index
May 21, 20268-KShareholder vote results· period May 21, 2026Document · Index
May 15, 2026SCHEDULE 13GPassive beneficial ownership report (over 5%)Document · Index
May 1, 202610-QQuarterly report· period Mar 31, 2026Document · Index
Apr 21, 20268-KResults of operations; Regulation FD disclosure· period Apr 21, 2026Document · Index
Apr 2, 2026DEF 14ADefinitive proxy statement· period May 21, 2026Document · Index
Apr 2, 2026ARSARS· period Dec 31, 2025Document · Index
Mar 27, 2026SCHEDULE 13G/APassive beneficial ownership report (over 5%)Document · Index
Mar 19, 20268-KDirector or officer change· period Mar 19, 2026Document · Index
Feb 27, 202610-KAnnual report· period Dec 31, 2025Document · Index
Feb 18, 20264Statement of changes in beneficial ownership (insider trade)· period Feb 15, 2026Document · Index
Feb 18, 20264Statement of changes in beneficial ownership (insider trade)· period Feb 15, 2026Document · Index
Feb 9, 20264Statement of changes in beneficial ownership (insider trade)· period Feb 5, 2026Document · Index
Feb 9, 20264Statement of changes in beneficial ownership (insider trade)· period Dec 19, 2025Document · Index
Feb 9, 20264Statement of changes in beneficial ownership (insider trade)· period Feb 5, 2026Document · Index
Feb 9, 20264Statement of changes in beneficial ownership (insider trade)· period Dec 19, 2025Document · Index
Feb 9, 20264Statement of changes in beneficial ownership (insider trade)· period Dec 19, 2025Document · Index
Feb 9, 20264Statement of changes in beneficial ownership (insider trade)· period Dec 12, 2025Document · Index
Jan 21, 2026SCHEDULE 13G/APassive beneficial ownership report (over 5%)Document · Index
Jan 20, 20268-K/AResults of operations; Regulation FD disclosure· period Jan 20, 2026Document · Index
Jan 20, 20268-KResults of operations; Regulation FD disclosure· period Jan 20, 2026Document · Index
Jan 7, 20264Statement of changes in beneficial ownership (insider trade)· period Jan 6, 2026Document · Index
Jan 5, 20264Statement of changes in beneficial ownership (insider trade)· period Dec 31, 2025Document · Index

Insider filing activity

24 Form 4 filings appear in MERCANTILE BANK CORP’s EDGAR record between Oct 28, 2025 and our last refresh. Most are reports by the company’s own directors, officers and 10% owners, but EDGAR also lists a Form 4 under a company when the company itself is the insider — for example, when it owns more than 10% of another public company. Foreign private issuers’ own insiders generally do not file Form 4. A high count is not by itself a signal: many Form 4s report routine stock awards, tax withholding or sales under pre-arranged Rule 10b5-1 plans. Open each filing to see the transaction code, share count and price. What a Form 4 shows.

Other companies in State Commercial Banks

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Source

  • U.S. Securities and Exchange Commission, EDGAR submissions for CIK 0001042729 and XBRL company facts. MERCANTILE BANK CORP on EDGAR.
  • Snapshot updated Oct 27, 2026, 11:27 PM EDT. The SEC does not endorse OpenFilings. Company names and tickers are used only to identify the filer; no logos are shown.

Not investment advice. This page summarizes public SEC filings for information only. Figures may contain errors or omissions; confirm everything in the original filing before relying on it.