<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2024-12-26</periodOfReport>

    <issuer>
        <issuerCik>0001625941</issuerCik>
        <issuerName>ARES INDUSTRIAL REAL ESTATE INCOME TRUST Inc.</issuerName>
        <issuerTradingSymbol>NONE</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001966105</rptOwnerCik>
            <rptOwnerName>Fazekas David M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ARES MANAGEMENT LLC</rptOwnerStreet1>
            <rptOwnerStreet2>1200 17TH STREET, SUITE 2900</rptOwnerStreet2>
            <rptOwnerCity>DENVER</rptOwnerCity>
            <rptOwnerState>CO</rptOwnerState>
            <rptOwnerZipCode>80202</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Partner, Co-President</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Class I-R Operating Partnership Units</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2024-12-26</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F2"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>736377.812</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class I-R Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>736377.812</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Class I-R Operating Partnership Units</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2024-12-26</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F2"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>736377.812</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class I-R Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>736377.812</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>736377.812</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By LLC</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Each Class I-R Operating Partnership Unit (formerly designated as Class I Operating Partnership Units) (the &quot;Class I-R OP Units&quot;) in AIREIT Operating Partnership LP (the &quot;OP&quot;), a subsidiary of the Issuer, is redeemable by the holder for cash or, if the Issuer's board of directors determines that the redemption of the Class I-R OP Units for cash would be prohibited by applicable law, the Issuer's charter or the OP's limited partnership agreement (the &quot;OP Agreement&quot;), for shares of the Issuer's Class I-R common stock (formerly designated as Class I common stock), subject to any limitations on redemption in the OP Agreement. Any such redemption of Class I-R OP Units will be priced at the then-current net asset value of such Class I-R OP Units. There is no expiration date for the holder's ability to request redemption of the Class I-R OP Units.</footnote>
        <footnote id="F2">On December 26, 2024, the reporting person transferred and assigned all of the Class I-R OP Units directly held by the reporting person to a limited liability company in which the reporting person is a member. As a result of the transfer and assignment, the reporting person no longer directly owns any Class I-R OP Units.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Andrew Ko, Attorney-in-Fact</signatureName>
        <signatureDate>2024-12-30</signatureDate>
    </ownerSignature>
</ownershipDocument>
