<SEC-DOCUMENT>0001214659-25-016276.txt : 20251112
<SEC-HEADER>0001214659-25-016276.hdr.sgml : 20251112
<ACCEPTANCE-DATETIME>20251112094111
ACCESSION NUMBER:		0001214659-25-016276
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20251110
FILED AS OF DATE:		20251112
DATE AS OF CHANGE:		20251112

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Bugh John M
		CENTRAL INDEX KEY:			0001712461
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-18082
		FILM NUMBER:		251469945

	MAIL ADDRESS:	
		STREET 1:		218 S. GLENSTONE AVE
		CITY:			SPRINGFIELD
		STATE:			MO
		ZIP:			65802

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GREAT SOUTHERN BANCORP, INC.
		CENTRAL INDEX KEY:			0000854560
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		ORGANIZATION NAME:           	02 Finance
		EIN:				431524856
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		218 S GLENSTONE AVE
		CITY:			SPRINGFIELD
		STATE:			MO
		ZIP:			65802
		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>4
<SEQUENCE>1
<FILENAME>marketforms-71239.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
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    <periodOfReport>2025-11-10</periodOfReport>

    <issuer>
        <issuerCik>0000854560</issuerCik>
        <issuerName>GREAT SOUTHERN BANCORP, INC.</issuerName>
        <issuerTradingSymbol>GSBC</issuerTradingSymbol>
    </issuer>

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            <rptOwnerCik>0001712461</rptOwnerCik>
            <rptOwnerName>Bugh John M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>CARE OF  GREAT SOUTHERN BANK</rptOwnerStreet1>
            <rptOwnerStreet2>218 S. GLENSTONE AVE</rptOwnerStreet2>
            <rptOwnerCity>SPRINGFIELD</rptOwnerCity>
            <rptOwnerState>MO</rptOwnerState>
            <rptOwnerZipCode>65802</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>true</isOther>
            <officerTitle></officerTitle>
            <otherText>Vice President of Subsidiary</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

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            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common stock</value>
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            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
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            <expirationDate>
                <value>2028-11-28</value>
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                <underlyingSecurityTitle>
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                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>3500</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
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                <sharesOwnedFollowingTransaction>
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                </sharesOwnedFollowingTransaction>
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        <derivativeHolding>
            <securityTitle>
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            </conversionOrExercisePrice>
            <exerciseDate>
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            <expirationDate>
                <value>2029-11-20</value>
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                </underlyingSecurityShares>
            </underlyingSecurity>
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                <sharesOwnedFollowingTransaction>
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                </sharesOwnedFollowingTransaction>
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            <expirationDate>
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    <footnotes>
        <footnote id="F1">438 shares vest on 11/18/2017 and 11/18/2018, and 437 shares vest on 11/18/2019 and 11/18/2020</footnote>
        <footnote id="F2">625 shares vest on 10/24/2018, 10/24/2019, 10/24/2020 and 10/24/2021</footnote>
        <footnote id="F3">700 shares vest on 11/15/2019, 11/15/2020, 11/15/2021 and 11/15/2022</footnote>
        <footnote id="F4">875 shares vest on 11/28/2020, 11/28/2021, 11/28/2022 and 11/28/2023</footnote>
        <footnote id="F5">950 shares vest on 11/20/2021, 11/20/2022, 11/20/2023 and 11/20/2024</footnote>
        <footnote id="F6">1,125 shares vest on 10/26/2022, 10/26/2023, 10/26/2024 and 10/26/2025</footnote>
        <footnote id="F7">1,188 shares vest on 11/17/2023 and 11/17/2024 and 1,187 shares vest on 11/17/2025 and 11/17/2026</footnote>
        <footnote id="F8">1,200 shares vest on 11/16/2024, 11/16/2025, 11/16/2026 and 11/16/2027</footnote>
        <footnote id="F9">1,200 shares vest on 11/15/2025, 11/15/2026, 11/15/2027 and 11/15/2028</footnote>
        <footnote id="F10">1,200 shares vest on 11/20/2026, 11/20/2027, 11/20/2028 and 11/20/2029</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Matt Snyder, by Power of Attorney from John M. Bugh</signatureName>
        <signatureDate>2025-11-12</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
