Nelson F. Sanchez - 22 May 2026 Form 4 Insider Report for MERCANTILE BANK CORP (MBWM)

Reporting relationship: Director
Issuer ticker: MBWM
Reported as of: 22 May 2026
Net transaction value: $0
SEC form: 4
Accepted by SEC: 27 May 2026, 16:21:14 UTC
Prior SEC filing: 04 Nov 2025
Source filing: View source filing
Reporting owner signature: /s/ Adin J. Tarr, Attorney-in-Fact

Key filing fact

Nelson F. Sanchez filed Form 4 for MERCANTILE BANK CORP (MBWM) on 27 May 2026.

Key facts

This page summarizes Nelson F. Sanchez's Form 4 filing for MERCANTILE BANK CORP (MBWM).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 27 May 2026, 16:21.

Change

Previous filing in this sequence was filed on 04 Nov 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0002014569 Primary reporting owner

Sanchez Nelson F

Relationship: Director
Address: C/O MERCANTILE BANK CORPORATION, 310 LEONARD ST., GRAND RAPIDS
Signature: /s/ Adin J. Tarr, Attorney-in-Fact
Signature date: 27 May 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

MBWM transaction

Common Stock

Award

Transaction value
Shares: +715
Change %: +22%
Price: $0.000000^*
Shares after: 3,899
Date: 22 May 2026
Ownership: Direct
Footnotes: F1

MBWM holding

Common Stock

No transaction description listed

Transaction value
Shares
Change %
Price
Shares after: 3,502
Date: 22 May 2026
Ownership: IRA

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote F1

Includes shares acquired since last report of common stock ownership by reinvesting cash dividends under the Issuer's dividend reinvestment plan.

We use cookies and similar technologies to provide certain features, enhance the user experience and, if you allow them, measure engagement and deliver advertising. Analytics and marketing storage stay off until you grant consent. By clicking on "Agree and continue", you declare your consent to the use of the selected optional cookies. to update or revoke optional consent for future visits. For more information, see our Privacy Policy .