<SEC-DOCUMENT>0001628779-26-000004.txt : 20260313
<SEC-HEADER>0001628779-26-000004.hdr.sgml : 20260313
<ACCEPTANCE-DATETIME>20260313121108
ACCESSION NUMBER:		0001628779-26-000004
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260311
FILED AS OF DATE:		20260313
DATE AS OF CHANGE:		20260313

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			McDade Brian J.
		CENTRAL INDEX KEY:			0001628779
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-14469
		FILM NUMBER:		26751019

	MAIL ADDRESS:	
		STREET 1:		C/O SIMON PROPERTY GROUP, INC.
		STREET 2:		225 WEST WASHINGTON STREET
		CITY:			INDIANAPOLIS
		STATE:			IN
		ZIP:			46204

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SIMON PROPERTY GROUP INC.
		CENTRAL INDEX KEY:			0001063761
		STANDARD INDUSTRIAL CLASSIFICATION:	REAL ESTATE INVESTMENT TRUSTS [6798]
		ORGANIZATION NAME:           	05 Real Estate & Construction
		EIN:				046268599
		STATE OF INCORPORATION:			IN
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		225 WEST WASHINGTON STREET
		CITY:			INDIANAPOLIS
		STATE:			IN
		ZIP:			46204-3438
		BUSINESS PHONE:		317-636-1600

	MAIL ADDRESS:	
		STREET 1:		225 WEST WASHINGTON STREET
		CITY:			INDIANAPOLIS
		STATE:			IN
		ZIP:			46204-3438

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SIMON PROPERTY GROUP INC /DE/
		DATE OF NAME CHANGE:	19980925

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CORPORATE PROPERTY INVESTORS INC
		DATE OF NAME CHANGE:	19980610
</SEC-HEADER>
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<TYPE>4
<SEQUENCE>1
<FILENAME>form4-03132026_040359.xml
<TEXT>
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<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-03-11</periodOfReport>

    <issuer>
        <issuerCik>0001063761</issuerCik>
        <issuerName>SIMON PROPERTY GROUP INC.</issuerName>
        <issuerTradingSymbol>SPG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001628779</rptOwnerCik>
            <rptOwnerName>McDade Brian J.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>225 W. WASHINGTON ST.</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>INDIANAPOLIS</rptOwnerCity>
            <rptOwnerState>IN</rptOwnerState>
            <rptOwnerZipCode>46204</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>true</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle>EVP/CFO</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>LTIP Units</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2026-03-11</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>31226</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>.25</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
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                <footnoteId id="F2"/>
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            <expirationDate>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
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                <underlyingSecurityShares>
                    <value>31226</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>112689</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
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                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F3"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2026-03-11</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>4616</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
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            <expirationDate>
                <footnoteId id="F4"/>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
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                <underlyingSecurityShares>
                    <value>4616</value>
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            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4616</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Represents long-term incentive performance (&quot;LTIP&quot;) units of Simon Property Group, L.P. (the &quot;Operating Partnership&quot;), of which Simon Property Group, Inc. (the &quot;Company&quot;) is the general partner, issued as long-term incentive compensation pursuant to the Operating Partnership's 2019 Stock Incentive Plan (the &quot;Plan&quot;), in compliance with Rule 16b-3. When earned and vested, each LTIP unit may be converted into a unit of limited partnership interest (&quot;Partnership Unit&quot;). Each Partnership Unit may be exchanged for a share of the Company's common stock, or cash, as selected by the Company.</footnote>
        <footnote id="F2">On March 1, 2023, the Reporting Person was awarded a maximum of 31,226 LTIP units, subject to certain performance conditions. On March 11, 2026, the Compensation and Human Capital Committee (the &quot;Compensation Committee&quot;) of the Board of Directors of the Company determined that the extent to which the performance measures had been achieved during the performance period resulted in 100%, or 31,226 of the LTIP units becoming earned LTIP units. The earned LTIP units vest on January 1, 2027, subject to a continued service requirement, or may vest earlier due to the Reporting Person's death or disability, a change of control of the Company, the retirement of the Reporting Person, subject to the approval of the Company's Compensation Committee, or as may otherwise be determined by the Company's Compensation Committee in accordance with the terms of the grant agreement and the Plan.</footnote>
        <footnote id="F3">Each Restricted Stock Unit (&quot;RSU&quot;) represents the contingent right to receive, at settlement, one share of common stock of the Company.</footnote>
        <footnote id="F4">The RSUs are being issued pursuant to the Plan, in compliance with Rule 16b-3. The RSUs will vest on March 11, 2029, subject to a continued service requirement, or may vest and settle earlier due the Reporting Person's death or disability, a change of control of the Company, the retirement of the Reporting Person, subject to the approval of the Company's Compensation Committee, or as may otherwise be determined by the Company's Compensation Committee in accordance with the terms of the grant agreement and the Plan. Vested RSUs will be settled in shares of the Company's common stock as soon as practicable after the vesting date.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Brian J. McDade by his attorney-in-fact, Steven E. Fivel</signatureName>
        <signatureDate>2026-03-13</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
