<SEC-DOCUMENT>0000860413-20-000179-index.html : 20200702
<SEC-HEADER>0000860413-20-000179.hdr.sgml : 20200702
<ACCEPTANCE-DATETIME>20200702152306
ACCESSION NUMBER:		0000860413-20-000179
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20200702
DATE AS OF CHANGE:		20200702
GROUP MEMBERS:		HOMER A SCOTT, JR
GROUP MEMBERS:		JAMES R SCOTT
GROUP MEMBERS:		JAMES R SCOTT, JR
GROUP MEMBERS:		JEREMY SCOTT
GROUP MEMBERS:		JOHN M HEYNEMAN, JR
GROUP MEMBERS:		JONATHAN R SCOTT
GROUP MEMBERS:		JULIE SCOTT ROSE
GROUP MEMBERS:		N BAR 5 LTD
GROUP MEMBERS:		RISA K SCOTT
GROUP MEMBERS:		SUSAN S HEYNEMAN

SUBJECT COMPANY:	

	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:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-78756
		FILM NUMBER:		201008888

	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

FILED BY:		

	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:		SC 13D/A

	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>SC 13D/A
<SEQUENCE>1
<FILENAME>sc13da20200702.htm
<DESCRIPTION>SC 13D/A
<TEXT>
Document 1 - file: sc13da20200702.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>ex991amendedrestatedjointf.htm
<DESCRIPTION>EX-99.1-AMENDEDANDRESTATEDJOINTFILINGAGREEMENT
<TEXT>
Document 2 - file: ex991amendedrestatedjointf.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.8
<SEQUENCE>3
<FILENAME>ex998juliescottrosepoa.htm
<DESCRIPTION>EX-99.8-JULIESCOTTROSEPOA
<TEXT>
Document 3 - file: ex998juliescottrosepoa.htm

</DOCUMENT>
</SEC-DOCUMENT>