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): October 20, 2008

MainSource Financial Group, Inc.

(Exact name of registrant as specified in its charter)

Indiana		0-12422		35-1562245
State or Other Jurisdiction of Incorporation or Organization		Commission File No.		I.R.S. Employer Identification Number

2105 North State Road 3 Bypass

Greensburg, Indiana 47240

(Address of principal executive offices)

(812) 663-6734

(Registrant’s Telephone Number,

Including Area Code)

N/A

(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))

Item 1.01

Entry into a Material Definitive Agreement

On October 20, 2008, the Company entered into Indemnification Agreements with Archie M. Brown, Jr., D.J. Hines and Brian Crall, each of whom are directors of the Company, and Jeffrey C. Smith, the Chief Operating Officer of the Company, in the form of the Indemnification Agreement filed as Exhibit 10.1 to the Form 8-K on February 24, 2005 (Commission File No. 0-12422).

Item 2.02.

Results of Operations and Financial Condition.

On October 22, 2008, MainSource Financial Group, Inc. issued a press release announcing certain financial results for its third quarter ended September 30, 2008. The press release is furnished with this report as Exhibit 99.1.

Item 9.01.

Financial Statements and Exhibits.

(d)	Exhibits.

	99.1	Press Release of MainSource Financial Group, Inc. dated October 22, 2008.

* * *

SIGNATURE

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, thereunto duly authorized.

DATE: October 22, 2008	MAINSOURCE FINANCIAL GROUP, INC.


	/s/ Archie M. Brown, Jr.
	Archie M. Brown, Jr.
	President and Chief Executive Officer

EXHIBIT INDEX

Exhibit Number		Description

99.1		Press Release of MainSource Financial Group, Inc. dated October 22, 2008