<SEC-DOCUMENT>0000950103-21-014109-index.html : 20210917
<SEC-HEADER>0000950103-21-014109.hdr.sgml : 20210917
<ACCEPTANCE-DATETIME>20210916175507
ACCESSION NUMBER:		0000950103-21-014109
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		4
FILED AS OF DATE:		20210917
DATE AS OF CHANGE:		20210916
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:		NBAR5, LIMITED PARTNERSHIP
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:		211258794

	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>dp158013_sc13da.htm
<DESCRIPTION>FORM SC 13D/A
<TEXT>
Document 1 - file: dp158013_sc13da.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.11
<SEQUENCE>2
<FILENAME>dp158013_ex9911.htm
<DESCRIPTION>EXHIBIT 99.11
<TEXT>
Document 2 - file: dp158013_ex9911.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.12
<SEQUENCE>3
<FILENAME>dp158013_ex9912.htm
<DESCRIPTION>EXHIBIT 99.12
<TEXT>
Document 3 - file: dp158013_ex9912.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.13
<SEQUENCE>4
<FILENAME>dp158013_ex9913.htm
<DESCRIPTION>EXHIBIT 99.13
<TEXT>
Document 4 - file: dp158013_ex9913.htm

</DOCUMENT>
</SEC-DOCUMENT>