Item 5.03. Amendments to Articles of Incorporation or
Bylaws; Change in Fiscal Year.

At the 2009 Annual Meeting of Shareholders of MainSource Financial Group, Inc. (the Company") held on April 29, 2009, the shareholders of the Company adopted an amendment to Article II of the Company's Amended and Restated Articles of Incorporation to increase the number of authorized shares of common stock to 100,000,000 shares. The amendment will become effective upon the filing of Articles of Amendment with the Indiana Secretary of State. The text of Article II of the Company's Amended and Restated Articles of Incorporation, as amended, is filed with this Current Report on Form 8-k as Exhibit 3.1 and incorporated herein by reference.

Item 7.01. Regulation FD Disclosure.

At the 2009 Annual Meeting of Shareholders held on April 29, 2009, the Company presented certain financial and other information to those present. A copy of the powerpoint presentation reviewed during the meeting is attached hereto as Exhibit 99.1 and incorporated herein by reference.

This information is furnished pursuant to Item 7.01 of Form 8-K and shall not be deemed to be "filed" for the purposes of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities of that section. The filing of this Current Report shall not be deemed an admission as to the materiality of any information in the Current Report that is required to be disclosed solely by reason of Regulation FD.

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

3.1 Amendment to the Amended and Restated Articles of Incorporation of MainSource Financial Group, Inc. adopted by the shareholders at the 2009 Annual Meeting held on April 29, 2009.

99.1 Powerpoint slide presentation used by MainSource Financial Group, Inc., at the 2009 Annual Meeting of Shareholders held on April 29, 2009.

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