CHARLES E. CHRISTMAS - 05 Feb 2026 Form 4 Insider Report for MERCANTILE BANK CORP (MBWM)

Role: EVP & CFO
Signature: /s/ Bradley J. Wyatt, Attorney-in-Fact
Issuer symbol: MBWM
Transactions as of: 05 Feb 2026
Net transactions value: $0
Form type: 4
Filing time: 09 Feb 2026, 18:25:13 UTC
Previous filing: 21 Feb 2025
Next filing: 18 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
CHRISTMAS CHARLES E	EVP & CFO	C/O MERCANTILE BANK CORPORATION, 310 LEONARD ST. NW, GRAND RAPIDS	/s/ Bradley J. Wyatt, Attorney-in-Fact	09 Feb 2026	0001208502

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MBWM	Common Stock	Award	$0	+2,829	+4.2%	$0.000000	70,808	05 Feb 2026	Direct	F1
transaction	MBWM	Common Stock	Award	$0	+1,414	+2%	$0.000000	72,222	05 Feb 2026	Direct
holding	MBWM	Common Stock						50,376	05 Feb 2026	In 401(k) plan	F2
holding	MBWM	Common Stock						510	05 Feb 2026	By spouse IRA	F3
holding	MBWM	Common Stock						2,071	05 Feb 2026	By spouse 401(k) plan	F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	This award of shares is being made pursuant to the Issuer's performance-based restricted stock award agreement, such that a portion or all of this award of restricted stock may be forfeited in the future if certain performance metrics are not met.
F2	Includes shares acquired pursuant to the Issuer's 401(k) Plan since last report of common stock ownership.
F3	Includes shares acquired since last report of common stock ownership by reinvesting cash dividends under the Issuer's dividend reinvestment plan.