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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL OMB Number: 3235-0287 Expires: January 31, 2005 Estimated average burden hours per response... 0.5

(Print or Type Responses)

1. Name and Address of Reporting Person * CHRISTMAS CHARLES E   2. Issuer Name and Ticker or Trading Symbol MERCANTILE BANK CORP [MBWM] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Senior V.P. & CFO (Last) (First) (Middle) MERCANTILE BANK CORPORATION, 310 LEONARD STREET NW 3. Date of Earliest Transaction (Month/Day/Year) 08/27/2007 (Street) GRAND RAPIDS, MI 49504 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) 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 08/27/2007   F   50 D $ 22.41 3,352 D   Common Stock 08/27/2007   M   138 A $ 8.219 138 I By spouse Common Stock 08/27/2007   F   184 D $ 22.41 3,168 D   Common Stock 08/27/2007   M   332 A $ 12.444 470 I By spouse Common Stock 08/27/2007   F   457 D $ 22.41 2,711 D   Common Stock 08/27/2007   M   636 A $ 16.135 1,106 I By spouse Common Stock               9,910 (1) I 401(k) Plan Common Stock               1,154 (2) I 401(k) Plan for spouse

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
	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 control number.		SEC 1474 (9-02)

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 Underlying Securities (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 of Derivative Security: 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

Employee Stock Option (right to buy)

$ 8.219

08/27/2007

M

138

11/09/2001

11/08/2010

Common Stock

138

$ 0

0

I

By spouse

Employee Stock Option (right to buy)

$ 12.444

08/27/2007

M

332

10/18/2002

10/17/2011

Common Stock

332

$ 0

0

I

By spouse

Employee Stock Option (right to buy)

$ 16.135

08/27/2007

M

636

10/17/2003

10/16/2012

Common Stock

636

$ 0

0

I

By spouse

Employee Stock Option (right to buy)

$ 8.219

11/09/2001

11/08/2010

Common Stock

4,660

4,660

D

Employee Stock Option (right to buy)

$ 12.444

10/18/2002

10/17/2011

Common Stock

4,018

4,018

D

Employee Stock Option (right to buy)

$ 16.135

10/17/2003

10/16/2012

Common Stock

3,827

3,827

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
CHRISTMAS CHARLES E MERCANTILE BANK CORPORATION 310 LEONARD STREET NW GRAND RAPIDS, MI 49504			Senior V.P. & CFO

Signatures

/s/ Jerome M. Schwartz Attorney-in-fact		08/29/2007
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	This share amount includes shares Mr. Christmas acquired pursuant to the issuer's 401(k) Plan since his last report of common stock ownership.
(2)	This share amount includes shares Mrs. Christmas acquired pursuant to the issuer's 401(k) Plan since Mr. Christmas' last report of common stock ownership.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.