<SEC-DOCUMENT>0000860413-21-000208-index.html : 20211029
<SEC-HEADER>0000860413-21-000208.hdr.sgml : 20211029
<ACCEPTANCE-DATETIME>20211029162208
ACCESSION NUMBER:		0000860413-21-000208
CONFORMED SUBMISSION TYPE:	425
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20211029
DATE AS OF CHANGE:		20211029

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Great Western Bancorp, Inc.
		CENTRAL INDEX KEY:			0001613665
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				471308512
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0930

	FILING VALUES:
		FORM TYPE:		425
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36688
		FILM NUMBER:		211363511

	BUSINESS ADDRESS:	
		STREET 1:		225 S. MAIN AVENUE
		CITY:			SIOUX FALLS
		STATE:			SD
		ZIP:			57104
		BUSINESS PHONE:		605-334-2548

	MAIL ADDRESS:	
		STREET 1:		225 S. MAIN AVENUE
		CITY:			SIOUX FALLS
		STATE:			SD
		ZIP:			57104

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:		425

	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>425
<SEQUENCE>1
<FILENAME>fibk-20210930x8kpr.htm
<DESCRIPTION>425
<TEXT>
Document 1 - file: fibk-20210930x8kpr.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>fibslogo2linea04.jpg
<DESCRIPTION>FIBK LOGO
<TEXT>
Document 2 - file: fibslogo2linea04.jpg

</DOCUMENT>
</SEC-DOCUMENT>