<SEC-DOCUMENT>0000860413-19-000056-index.html : 20190503
<SEC-HEADER>0000860413-19-000056.hdr.sgml : 20190503
<ACCEPTANCE-DATETIME>20190503161752
ACCESSION NUMBER:		0000860413-19-000056
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		25
CONFORMED PERIOD OF REPORT:	20190503
ITEM INFORMATION:		Submission of Matters to a Vote of Security Holders
ITEM INFORMATION:		Regulation FD Disclosure
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20190503
DATE AS OF CHANGE:		20190503

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FIRST INTERSTATE BANCSYSTEM INC
		CENTRAL INDEX KEY:			0000860413
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				810331430
		STATE OF INCORPORATION:			MT
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34653
		FILM NUMBER:		19796411

	BUSINESS ADDRESS:	
		STREET 1:		P O BOX 30918
		STREET 2:		401 NO 31ST STREET
		CITY:			BILLINGS
		STATE:			MT
		ZIP:			59116-0918
		BUSINESS PHONE:		4062555300

	MAIL ADDRESS:	
		STREET 1:		P O BOX 30918
		STREET 2:		401 NO 31ST STREET
		CITY:			BILLINGS
		STATE:			MT
		ZIP:			59116-0918

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FIRST INTERSTATE BANCSYSTEM OF MONTANA INC
		DATE OF NAME CHANGE:	19930615
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>a8-kshr_divdecxip.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: a8-kshr_divdecxip.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>fibkannualshmtgmay2019.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
Document 2 - file: fibkannualshmtgmay2019.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.2
<SEQUENCE>3
<FILENAME>ex992-dividenddeclaration.htm
<DESCRIPTION>EXHIBIT 99.2
<TEXT>
Document 3 - file: ex992-dividenddeclaration.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>fibbancsyst2line4ca21.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: fibbancsyst2line4ca21.jpg

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<DOCUMENT>
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<SEQUENCE>5
<FILENAME>fibkannualshmtgmay2019001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: fibkannualshmtgmay2019001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>fibkannualshmtgmay2019002.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: fibkannualshmtgmay2019002.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>fibkannualshmtgmay2019003.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: fibkannualshmtgmay2019003.jpg

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<SEQUENCE>8
<FILENAME>fibkannualshmtgmay2019004.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: fibkannualshmtgmay2019004.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>fibkannualshmtgmay2019005.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: fibkannualshmtgmay2019005.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>fibkannualshmtgmay2019006.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: fibkannualshmtgmay2019006.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>fibkannualshmtgmay2019007.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 11 - file: fibkannualshmtgmay2019007.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>fibkannualshmtgmay2019008.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 12 - file: fibkannualshmtgmay2019008.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>fibkannualshmtgmay2019009.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 13 - file: fibkannualshmtgmay2019009.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>fibkannualshmtgmay2019010.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 14 - file: fibkannualshmtgmay2019010.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>15
<FILENAME>fibkannualshmtgmay2019011.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 15 - file: fibkannualshmtgmay2019011.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>16
<FILENAME>fibkannualshmtgmay2019012.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 16 - file: fibkannualshmtgmay2019012.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>17
<FILENAME>fibkannualshmtgmay2019013.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 17 - file: fibkannualshmtgmay2019013.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>18
<FILENAME>fibkannualshmtgmay2019014.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 18 - file: fibkannualshmtgmay2019014.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>19
<FILENAME>fibkannualshmtgmay2019015.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 19 - file: fibkannualshmtgmay2019015.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>20
<FILENAME>fibkannualshmtgmay2019016.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 20 - file: fibkannualshmtgmay2019016.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>21
<FILENAME>fibkannualshmtgmay2019017.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 21 - file: fibkannualshmtgmay2019017.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>22
<FILENAME>fibkannualshmtgmay2019018.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 22 - file: fibkannualshmtgmay2019018.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>23
<FILENAME>fibkannualshmtgmay2019019.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 23 - file: fibkannualshmtgmay2019019.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>24
<FILENAME>fibkannualshmtgmay2019020.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 24 - file: fibkannualshmtgmay2019020.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>25
<FILENAME>fibkannualshmtgmay2019021.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 25 - file: fibkannualshmtgmay2019021.jpg

</DOCUMENT>
</SEC-DOCUMENT>