Mercantile Bank (NASDAQ: MBWM) director receives 715-share stock grant

Rhea-AI Filing Summary

Schweihofer Steven reported acquisition or exercise transactions in this Form 4 filing.

MERCANTILE BANK CORP director Steven Schweihofer received a stock award of 715 shares of Common Stock. The shares were granted at no cash cost to him and increased his direct holdings to 6,317 shares following the transaction on May 22, 2026. This appears to be routine equity-based compensation.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Schweihofer Steven

Role null

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	715	$0.00	--

Holdings After Transaction: Common Stock — 6,317 shares (Direct, null)

Footnotes (1)

Key Figures

Shares granted: 715 shares Transaction price per share: $0.0000 per share Shares owned after grant: 6,317 shares

3 metrics

Shares granted 715 shares Common Stock grant on May 22, 2026

Transaction price per share $0.0000 per share Grant, award, or other acquisition

Shares owned after grant 6,317 shares Total direct Common Stock holdings following transaction

Key Terms

Common Stock, Grant, award, or other acquisition, Form 4

3 terms

Common Stock financial

"security_title: "Common Stock""

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

Grant, award, or other acquisition financial

"transaction_code_description: "Grant, award, or other acquisition""

Form 4 regulatory

"INSIDER FILING DATA (Form 4)"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

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Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Schweihofer Steven

(Last) (First) (Middle)

C/O MERCANTILE BANK CORPORATION

310 LEONARD ST. NW

(Street)

GRAND RAPIDS MICHIGAN 49504

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
MERCANTILE BANK CORP [ MBWM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/22/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	05/22/2026		A		715	A	$0	6,317	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

	/s/ Adin J. Tarr, attorney-in-fact	05/27/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transaction did MERCANTILE BANK CORP (MBWM) report for Steven Schweihofer?

MERCANTILE BANK CORP reported that director Steven Schweihofer received a grant of 715 shares of Common Stock. The transaction was classified as a grant, award, or other acquisition, rather than an open-market purchase or sale, and reflects equity-based compensation.

How many MERCANTILE BANK CORP (MBWM) shares does Steven Schweihofer hold after this Form 4?

After the reported transaction, Steven Schweihofer directly holds 6,317 shares of MERCANTILE BANK CORP Common Stock. This total includes the 715 shares received in the May 22, 2026 grant, which was reported as a non-derivative award of Common Stock at no cash cost.

Was the MBWM Form 4 transaction a stock purchase or a grant to Steven Schweihofer?

The Form 4 shows a grant to Steven Schweihofer, not a market purchase. The 715 Common Stock shares were reported under transaction code A, described as a grant, award, or other acquisition, with a transaction price per share of 0.0000, indicating no cash paid.

On what date did Steven Schweihofer receive the MBWM stock award reported on Form 4?

Steven Schweihofer received the reported stock award on May 22, 2026. On that date, he acquired 715 shares of MERCANTILE BANK CORP Common Stock through a grant, increasing his direct ownership to a total of 6,317 Common Stock shares after the transaction.

What does transaction code A mean in the MBWM Form 4 for Steven Schweihofer?

Transaction code A in Steven Schweihofer’s Form 4 indicates a grant, award, or other acquisition of securities. In this case, it refers to 715 shares of Common Stock awarded at no cash cost, which increased his directly owned shares to 6,317 after the transaction.