<SEC-DOCUMENT>0000708955-17-000069-index.html : 20170731
<SEC-HEADER>0000708955-17-000069.hdr.sgml : 20170731
<ACCEPTANCE-DATETIME>20170731074720
ACCESSION NUMBER:		0000708955-17-000069
CONFORMED SUBMISSION TYPE:	425
PUBLIC DOCUMENT COUNT:		24
FILED AS OF DATE:		20170731
DATE AS OF CHANGE:		20170731

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MAINSOURCE FINANCIAL GROUP
		CENTRAL INDEX KEY:			0000720002
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				351562245
		STATE OF INCORPORATION:			IN
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		425
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-12422
		FILM NUMBER:		17991505

	BUSINESS ADDRESS:	
		STREET 1:		201 N BROADWAY
		STREET 2:		PO BOX 87
		CITY:			GREENSBURG
		STATE:			IN
		ZIP:			47240
		BUSINESS PHONE:		8126630157

	MAIL ADDRESS:	
		STREET 1:		201 NORTH BROADWAY
		STREET 2:		P O BOX 87
		CITY:			GREENSBURG
		STATE:			IN
		ZIP:			47240

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	INDIANA UNITED BANCORP
		DATE OF NAME CHANGE:	19920703

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FIRST FINANCIAL BANCORP /OH/
		CENTRAL INDEX KEY:			0000708955
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		IRS NUMBER:				311042001
		STATE OF INCORPORATION:			OH
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		425

	BUSINESS ADDRESS:	
		STREET 1:		255 EAST FIFTH STREET
		STREET 2:		SUITE 800
		CITY:			CINCINNATI
		STATE:			OH
		ZIP:			45202
		BUSINESS PHONE:		8773229530

	MAIL ADDRESS:	
		STREET 1:		255 EAST FIFTH STREET
		STREET 2:		SUITE 800
		CITY:			CINCINNATI
		STATE:			OH
		ZIP:			45202
</SEC-HEADER>
<DOCUMENT>
<TYPE>425
<SEQUENCE>1
<FILENAME>a425investorpresentation.htm
<DESCRIPTION>425
<TEXT>
Document 1 - file: a425investorpresentation.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>a425investorpresentation001.jpg
<TEXT>
Document 2 - file: a425investorpresentation001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>a425investorpresentation002.jpg
<TEXT>
Document 3 - file: a425investorpresentation002.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>a425investorpresentation003.jpg
<TEXT>
Document 4 - file: a425investorpresentation003.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>a425investorpresentation004.jpg
<TEXT>
Document 5 - file: a425investorpresentation004.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>a425investorpresentation005.jpg
<TEXT>
Document 6 - file: a425investorpresentation005.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>a425investorpresentation006.jpg
<TEXT>
Document 7 - file: a425investorpresentation006.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>a425investorpresentation007.jpg
<TEXT>
Document 8 - file: a425investorpresentation007.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>a425investorpresentation008.jpg
<TEXT>
Document 9 - file: a425investorpresentation008.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>a425investorpresentation009.jpg
<TEXT>
Document 10 - file: a425investorpresentation009.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>a425investorpresentation010.jpg
<TEXT>
Document 11 - file: a425investorpresentation010.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>a425investorpresentation011.jpg
<TEXT>
Document 12 - file: a425investorpresentation011.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>a425investorpresentation012.jpg
<TEXT>
Document 13 - file: a425investorpresentation012.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>a425investorpresentation013.jpg
<TEXT>
Document 14 - file: a425investorpresentation013.jpg

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<TYPE>GRAPHIC
<SEQUENCE>15
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<TEXT>
Document 15 - file: a425investorpresentation014.jpg

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<TYPE>GRAPHIC
<SEQUENCE>16
<FILENAME>a425investorpresentation015.jpg
<TEXT>
Document 16 - file: a425investorpresentation015.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>17
<FILENAME>a425investorpresentation016.jpg
<TEXT>
Document 17 - file: a425investorpresentation016.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>18
<FILENAME>a425investorpresentation017.jpg
<TEXT>
Document 18 - file: a425investorpresentation017.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>19
<FILENAME>a425investorpresentation018.jpg
<TEXT>
Document 19 - file: a425investorpresentation018.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>20
<FILENAME>a425investorpresentation019.jpg
<TEXT>
Document 20 - file: a425investorpresentation019.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>21
<FILENAME>a425investorpresentation020.jpg
<TEXT>
Document 21 - file: a425investorpresentation020.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>22
<FILENAME>a425investorpresentation021.jpg
<TEXT>
Document 22 - file: a425investorpresentation021.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>23
<FILENAME>a425investorpresentation022.jpg
<TEXT>
Document 23 - file: a425investorpresentation022.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>24
<FILENAME>a425investorpresentation023.jpg
<TEXT>
Document 24 - file: a425investorpresentation023.jpg

</DOCUMENT>
</SEC-DOCUMENT>