<SEC-DOCUMENT>0000927089-18-000144-index.html : 20180327
<SEC-HEADER>0000927089-18-000144.hdr.sgml : 20180327
<ACCEPTANCE-DATETIME>20180327121255
ACCESSION NUMBER:		0000927089-18-000144
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20180327
DATE AS OF CHANGE:		20180327
EFFECTIVENESS DATE:		20180327

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GREAT SOUTHERN BANCORP, INC.
		CENTRAL INDEX KEY:			0000854560
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				431524856
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-18082
		FILM NUMBER:		18714642

	BUSINESS ADDRESS:	
		STREET 1:		1451 E BATTLEFIELD
		CITY:			SPRINGFIELD
		STATE:			MO
		ZIP:			65804
		BUSINESS PHONE:		417-887-4400

	MAIL ADDRESS:	
		STREET 1:		P O BOX 9009
		CITY:			SPRINGFIELD
		STATE:			MO
		ZIP:			65808-9009

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GREAT SOUTHERN BANCORP INC
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>gsbc-defa14a2018.htm
<DESCRIPTION>ADDITIONAL PROXY STATEMENT SOLICITATION MATERIALS
<TEXT>
Document 1 - file: gsbc-defa14a2018.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>notice1.jpg
<TEXT>
Document 2 - file: notice1.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>notice2.jpg
<TEXT>
Document 3 - file: notice2.jpg

</DOCUMENT>
</SEC-DOCUMENT>