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

    <schemaVersion>X0609</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-05-28</periodOfReport>

    <issuer>
        <issuerCik>0001690680</issuerCik>
        <issuerName>NEWMARK GROUP, INC.</issuerName>
        <issuerTradingSymbol>NMRK</issuerTradingSymbol>
        <issuerForeignTradingSymbol></issuerForeignTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001024896</rptOwnerCik>
            <rptOwnerName>CANTOR FITZGERALD, L. P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1></rptOwnerStreet1>
            <rptOwnerStreet2>499 PARK AVENUE</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>1</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Newmark Holdings Exchangeable Limited Partnership Interests</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F2"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2026-05-28</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>137831</value>
                    <footnoteId id="F3"/>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F3"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A or Class B Common Stock, par value $0.01 per share</value>
                    <footnoteId id="F2"/>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>127769</value>
                    <footnoteId id="F2"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>20521166</value>
                    <footnoteId id="F4"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">On May 28, 2026, Cantor Fitzgerald, L.P. (&quot;CFLP&quot;) purchased from Newmark Holdings, L.P. (&quot;Newmark Holdings&quot;) an aggregate of 137,831 exchangeable limited partnership interests in Newmark Holdings (the &quot;Interests&quot;) in a transaction exempt pursuant to Rule 16b-3 under the Securities Exchange Act of 1934, as amended (the &quot;Exchange Act&quot;), in accordance with the Amended and Restated Agreement of Limited Partnership of Newmark Holdings (as amended from time to time, the &quot;Newmark Holdings Agreement&quot;).</footnote>
        <footnote id="F2">The exchange rights with respect to the 137,831 Interests are currently exercisable at any time for an aggregate of 127,769 shares of Newmark Group, Inc. (&quot;Newmark&quot;) Class B common stock, par value $0.01 per share (&quot;Class B Common Stock&quot;) (or, at CFLP's option, an aggregate of 127,769 shares of Newmark Class A common stock, par value $0.01 per share (&quot;Class A Common Stock&quot;)), at the then-current exchange ratio (which is 0.9270 shares per Interest (subject to adjustment) as of May 28, 2026). The shares of Class B Common Stock are convertible at any time on a one-for-one basis (subject to adjustment) into shares of Class A Common Stock.</footnote>
        <footnote id="F3">Includes 134,302 Interests purchased from Newmark Holdings pursuant to Sections 12.02 and 12.03 of the Newmark Holdings Agreement as a result of the redemption of 134,302 non-exchangeable founding partner units for an aggregate consideration of $493,149, and 3,529  Interests purchased from Newmark Holdings pursuant to Section 8.08 of the Newmark Holdings Agreement for an aggregate consideration of $15,060 as a result of the exchange of 3,529 exchangeable founding partner units.</footnote>
        <footnote id="F4">The exchange rights with respect to the 20,521,166 Interests are currently exercisable at any time for an aggregate of 19,023,121 shares of Class B Common Stock (or, at CFLP's option, an aggregate of 19,023,121 shares of Class A Common Stock) at the current exchange ratio (which is 0.9270 shares per Interest (subject to adjustment) as of May 28, 2026).</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Brandon G. Lutnick, Chairman and Chief Executive Officer</signatureName>
        <signatureDate>2026-06-01</signatureDate>
    </ownerSignature>
</ownershipDocument>
