UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 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): ~~August~~October 819, 2011

MERCANTILE BANCORP, INC.

(Exact Name of Registrant as Specified in Charter)

Delaware	001-32434	37-1149138
(State or Other Jurisdiction	(Commission File Number)	(I.R.S. Employer
of Incorporation)		Identification No.)

200 North 33rd Street, Quincy, Illinois 62301

(Address of Principal Executive Offices) (Zip Code)

(217) 223-7300

Registrant'’s Telephone Number, Including Area Code

Not Applicable

(Former Name or Former Address, if Changed Since Last Report)

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:

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))

~~o Soliciting~~Item ~~material~~1.01 Entry ~~pursuant~~into toa ~~Rule~~Material ~~14a-12~~Definitive ~~under the Exchange Act (17 CFR 240~~Agreement.~~14a-12)~~

~~o Pre-commencement~~On ~~communications~~October ~~pursuant~~19, to2011, ~~Rule~~Mercantile ~~14d-2~~Bancorp, Inc, (bthe “Company”) ~~under~~announced ~~the~~that ~~Exchange~~its ~~Act~~subsidiary, Mercantile Bank (17the ~~CFR~~“Bank”), ~~240~~entered into a definitive Branch Purchase Agreement with HNB National Bank whereby the Bank will sell approximately $63 million in loans to HNB National Bank and HNB National Bank will assume up to $74 million in deposits booked at Bank branches located in Savannah and St.~~14d-2~~ Joseph, Missouri (bthe “Bank Branches”)) for a deposit premium of 1.5%.

~~o Pre-commencement~~The ~~communications~~consummation ~~pursuant~~of the transactions contemplated by the Branch Purchase Agreement are subject to ~~Rule~~customary ~~13e-4~~closing conditions, including (ci) ~~under~~the obtaining of certain requisite regulatory approvals, (ii) the ~~Exchange~~absence ~~Act~~of certain legal impediments to the consummation of the transactions contemplated by the Branch Purchase Agreement, (17iii) ~~CFR~~the ~~240.13e-4~~entering into certain agreements between the parties, and (cv)) subject to certain exceptions, the accuracy of the representations and warranties and compliance with the covenants of each party.

~~Item~~The 5Branch Purchase Agreement has been included to provide investors and security holders with information regarding their respective terms and not to provide investors and security holders with any other factual information regarding the Company or its business.02 The inclusion of each agreement is not intended to provide any other factual information about the Company, the Bank or HNB National Bank. ~~Departure~~ The representations, warranties and covenants contained in the Branch Purchase Agreement are made only for purposes of ~~Directors~~that agreement and as of specific dates, are solely for the benefit of the parties to the Branch Purchase Agreement, may be subject to limitations agreed upon by the respective contracting parties, including being qualified by confidential disclosures made for the purposes of allocating contractual risk between the parties to the Branch Purchase Agreement instead of establishing these matters as facts, and may be subject to standards of materiality applicable to the contracting parties that differ from those applicable to investors and security holders. Investors and security holders are not third-party beneficiaries under the Branch Purchase Agreement and should not rely on the representations, warranties and covenants or ~~Certain~~any ~~Officers;~~descriptions ~~Election~~thereof as characterizations of ~~Directors;~~the ~~Appointment~~actual state of ~~Certain~~facts ~~Officers;~~or ~~Compensatory~~condition ~~Arrangements~~of the Company or any of ~~Certain~~its ~~Officers~~subsidiaries or affiliates. Moreover, information concerning the subject matter of the representations and warranties may change after the respective dates of the Branch Purchase Agreement, which subsequent information may or may not be fully reflected in the Company’s public disclosures.

InItem ~~a press release dated August 8, 2011, Mercantile Bancorp, Inc~~9. ~~(the "Company") announced that Lee R. Keith has been appointed, effective August 8, 2011, as the acting and interim President and CEO of the Company and Chairman of Mercantile Bank.~~01 ~~Mr.~~Financial ~~Keith~~Statements ~~replaces~~And ~~Ted T. Awerkamp, who has served as President and CEO of the Company and as Chairman of Mercantile Bank since 2007.~~Exhibits

~~Mr.~~ (d) Keith, age 58, was President and Chief Lending Officer of Providence Bank, formerly Premier Bank, in St. Peters, Missouri from 2009 through April 2011. He has over 33 years of experience in the banking industry, including experience helping to restore problem banks to financially sound positions. From 2008 through 2009, he was President of Mid-MO Bank in Springfield, Missouri. He served as President of Progress Bank/First State Community Bank in Sullivan, Missouri, from 2006 through 2008, and as President of Gold Bank in St. Joseph, Missouri, from 2000 through 2006. Prior to 2000, he worked in various other executive and operational positions in the banking industry. Mr. Keith has served as a director of the Company and Mercantile Bank since 2009. Exhibits:

As compensation for Mr. Keith’s executive employment, the Company has agreed to pay him an annual salary of $300,000 and to provide him with temporary housing for six months and an automobile. There is no written employment agreement with Mr. Keith.

	Exhibit Number	Description
	10.1	Branch Purchase Agreement between Mercantile Bank and HNB National Bank dated October 19, 2011
	99.1	Press Release, dated October 18, 2011.

~~The~~Caution ~~full~~about ~~text~~Forward-Looking ~~of the press release is included herein as Exhibit 99.1 and is incorporated herein by reference.~~Statements

~~Item~~Certain 8statements made herein and in the attached press release may include “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, or the Securities Act, and Section 21E of the Exchange Act.01 Any statements contained or incorporated by reference herein that are not statements of historical fact may be deemed to be forward-looking statements. ~~Other~~ ~~Events~~These forward-looking statements are only predictions and, accordingly, are subject to substantial risks, uncertainties and assumptions.

On August 10, 2011, the Illinois Division of Banking (the “Division”) released a Consent Order that Mercantile Bank, the Federal Deposit Insurance Corporation (the “FDIC”), and the Division entered into as of July 28, 2011. Under the Order, Mercantile Bank shall cease operating with all money transmitters and currency businesses providing brokerage, sale or exchange of non-United States currency for deposit customers. Further, Mercantile Bank may not enter into a new line of business without the prior written consent of the FDIC and the Division.

Item 9.01. Financial Statements And Exhibits.

	Exhibit
	Number	Description
	99.1	Press release issued by Mercantile Bancorp, Inc. on August 8, 2011 regarding naming of interim President and CEO.

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 Bancorp, Inc. By: /s/ Lee R. ~~Keith~~Ketih Name: Lee R. Keith Title: ~~Acting and Interim~~ President and Chief Executive Officer

Date: ~~August~~October 1119, 2011

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