8-K

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT
Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934

Date of Report (date of earliest event reported): February 26, 2010

Mercantile Bank Corporation

(Exact name of registrant as specified in its charter)

Michigan
(State or other jurisdiction
of incorporation) 000-26719
(Commission File
Number) 38-3360865
(IRS Employer
Identification Number)

310 Leonard Street NW, Grand Rapids, Michigan
(Address of principal executive offices) 49504
(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):

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

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

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

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

Item 2.02 Results of Operations and Financial Condition.

     On February 26, 2010, we issued a press release announcing revisions to our fourth quarter and full year 2009 financial results from those announced in our January 19, 2010 press release. The revisions relate to an additional $10.0 million provision for loan and lease losses. A copy of our February 26, 2010 press release is furnished as Exhibit 99.1 to this report and incorporated here by reference.

     In accordance with General Instruction B.2 of Form 8-K, the information in this Item 2.02 and in Exhibit 99.1 shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liability of that section, and shall not be incorporated by reference into any registration statement or other document filed under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in the filing.

Item 8.01 Other Events.

     We made an additional $10.0 million provision for loan and lease losses that was charged against earnings effective as of December 31, 2009. Related information is provided in the press release that is furnished as Exhibit 99.1 to this report pursuant to Item 2.02 above.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

Exhibit Number		Description
	99.1	Press release of Mercantile Bank Corporation

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: February 26, 2010

2

Exhibit Index

Exhibit Number		Description
	99.1	Press release of Mercantile Bank Corporation

3

EX-99.1

Exhibit 99.1

FOR FURTHER INFORMATION:

AT MERCANTILE BANK CORPORATION:

Michael Price	Charles Christmas
Chairman & CEO	Chief Financial Officer
616-726-1600	616-726-1202
mprice@mercbank.com	cchristmas@mercbank.com

Mercantile Bank Corporation Announces Additional Provision
to the Allowance For Loan and Lease Losses

GRAND RAPIDS, Mich., February 26, 2010 (GLOBE NEWSWIRE) — Mercantile Bank Corporation (NASDAQ: MBWM) (“Mercantile”) today announced that it has revised its fourth quarter and full year 2009 financial results from those announced in a press release on January 19, 2010. The revision arises from an additional $10.0 million provision for loan and lease losses (“provision”) due to a reevaluation of the adequacy of the allowance for loan and lease losses (“allowance”) completed subsequent to the January 19, 2010 press release. The additional provision was charged against earnings effective as of December 31, 2009, and the financial statements and related financial information included in the January 19, 2010 press release have been revised accordingly.

As a result of the additional $10.0 million provision, the net loss for the fourth quarter of 2009 increased from the originally reported $26.4 million ($3.11 per diluted share) to $36.4 million ($4.28 per diluted share), and the net loss for the twelve months ended December 31, 2009 increased from the originally reported $42.9 million ($5.05 per diluted share) to $52.9 million ($6.23 per diluted share). Despite the additional expense, Mercantile’s wholly-owned subsidiary bank, Mercantile Bank of Michigan, continues to maintain capital levels in excess of regulatory minimums for well capitalized banks. No changes were made to the originally- reported levels of nonperforming assets or net loan and lease charge-offs.

The following table includes revised and originally reported key allowance and capital measurements as of December 31, 2009:

1

	As of December 31, 2009
				Originally
	Revised			Reported
Allowance for loan and lease losses	$	47,878,000		$	37,878,000
Total shareholders’ equity	$	140,104,000		$	150,104,000
Allowance for loan and lease losses to total loans		3.11	%		2.46	%
Period-ending equity to total assets		7.35	%		7.83	%
Tier 1 leverage capital ratio		8.64	%		9.14	%
Tier 1 risk-based capital ratio		9.92	%		10.43	%
Total risk-based capital ratio		11.18	%		11.70	%

About Mercantile Bank Corporation

Based in Grand Rapids, Michigan, Mercantile Bank Corporation is the bank holding company for Mercantile Bank of Michigan. Founded in 1997 to provide banking services to businesses, individuals, and governmental units, the Bank differentiates itself on the basis of service quality and its banking staff expertise. Mercantile has seven full-service banking offices in Grand Rapids, Holland and Lansing, Michigan. Mercantile Bank Corporation’s common stock is listed on the NASDAQ Global Select Market under the symbol “MBWM.”

Forward-Looking Statements

This news release contains comments or information that constitute forward-looking statements (within the meaning of the Private Securities Litigation Reform Act of 1995) that are based on current expectations that involve a number of risks and uncertainties. Actual results may differ materially from the results expressed in forward-looking statements. Factors that might cause such a difference include changes in interest rates and interest rate relationships; demand for products and services; the degree of competition by traditional and nontraditional competitors; changes in banking regulation; changes in tax laws; changes in prices, levies, and assessments; the impact of technological advances; governmental and regulatory policy changes; the outcomes of contingencies; trends in customer behavior as well as their ability to repay loans; changes in local real estate values; changes in the national and local economies; and other factors, including risk factors, disclosed from time to time in filings made by Mercantile with the Securities and Exchange Commission. Mercantile undertakes no obligation to update or clarify forward-looking statements, whether as a result of new information, future events or otherwise.

2