Form 4 for MBWM MERCANTILE BANK CORP

Accepted 2026-01-05 00:00:00 ET · period of report 2025-12-31 · accession 0001193125-26-002846 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
	2026-01-05	2025-12-31	MBWM	Schweihofer Steven	Dir	A - Grant	—	+5,282	5,282	New	—

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Common Stock	2025-12-31	A	A	5,282	—	5,282	D	—	—	(F1) Received in exchange for 7,423 shares of Eastern Michigan Financial Corporation Common Stock in connection with the merger of Eastern Michigan Financial Corporation and Mercantile Bank Corporation (the "Merger"). On the effective date of the Merger, each shareholder of Eastern Michigan Financial Corporation received $32.32 and 0.7116 shares of Mercantile Bank Corporation Common Stock in exchange for each share of Eastern Michigan Financial Corporation Common Stock. The last reportable closing price prior to the effective time of the Merger of Eastern Michigan Financial Corporation's Common Stock was $66.45 per share, and of Mercantile Bank Corporation's Common Stock was $48.10 per share.