UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K/A

(Amendment No. 1)

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (date of earliest event reported): April 19, 2016

Mercantile Bank Corporation

(Exact name of registrant as specified in its charter)

Michigan	000-26719	38-3360865
(State or other jurisdiction of incorporation)	(Commission File  Number)	(IRS Employer Identification Number)
310 Leonard Street NW, Grand Rapids, Michigan		49504
(Address of principal executive offices)		(Zip Code)
Registrant's telephone number, including area code		616-406-3000

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐  Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐  Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐  Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

EXPLANATORY NOTE:

The purpose of this Current Report on Form 8-K/A, Amendment No. 1, is to amend the Current Report on Form 8-K filed by Mercantile Bank Corporation on April 19, 2016 (the “Original Filing”). This amendment is being filed solely to correct the payment date of the quarterly cash dividend contained the Original Filing and its attached Exhibit 99.1, both of which did not conform to the actual press release. As corrected in the text below and in the attached Exhibit 99.1, the quarterly cash dividend is payable on June 23, 2016. No other information has changed from the Original Filing.

Item 8.01     Other Events.

On April 19, 2016, Mercantile Bank Corporation (the “Company”) issued a press release announcing a quarterly cash dividend of $0.16 per share. The quarterly cash dividend will be paid on June 23, 2016 to shareholders of record as of June 10, 2016.

The press release also announced an expansion of the Company’s current stock repurchase program. Under this expansion, an additional $15 million in repurchases of the Company’s common stock has been authorized. Repurchases may be made from time to time in open market transactions at prevailing market prices or by other means in accordance with applicable regulations of the Securities and Exchange Commission.

A copy of the press release issued is included as Exhibit 99.1 to this Current Report on Form 8-K and incorporated into this Item 8.01 by reference.

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Item 9.01     Financial Statements and Exhibits.

(d) Exhibits.

Exhibit Number	Description
99.1	Press release of Mercantile Bank Corporation Dated April 19, 2016, announcing second quarter dividend and expansion of stock repurchase program

Signatures

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Mercantile Bank Corporation
By:	/s/ Charles E. Christmas
	Charles E. Christmas Senior Vice President, Chief Financial Officer and Treasurer

Date: April 19, 2016

Exhibit Index

Exhibit Number	Description
99.1	Press release of Mercantile Bank Corporation Dated April 19, 2016, announcing second quarter dividend and expansion of stock repurchase program

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