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

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-03-15</periodOfReport>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001446936</rptOwnerCik>
            <rptOwnerName>Rispoli Michael J.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O NEWMARK GROUP, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>125 PARK AVENUE</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10017</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isOfficer>1</isOfficer>
            <officerTitle>Chief Financial Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock, par value $0.01 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2026-03-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>32824</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>14.19</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>697217</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">On March 15, 2026, pursuant to the vesting schedule of the restricted stock units (&quot;RSUs&quot;) granted under the reporting person's employment agreement (the &quot;2022 Employment Agreement&quot;), which each represent a contingent right to receive one share of Class A Common Stock, par value $0.01 per share (&quot;Class A Common Stock&quot;) of Newmark Group, Inc. (the &quot;Company&quot;), 64,292 RSUs became vested and issuable as shares of Class A Common Stock to the reporting person. The reported transaction involved the withholding by the Company of 32,824 shares of Class A Common Stock for taxes. The remaining 31,468 shares of Class A Common Stock were issued to the reporting person.</footnote>
        <footnote id="F2">Consists of 371,415  shares of Class A Common Stock of the Company represented by RSUs granted in connection with the 2022 Employment Agreement, divided into five tranches of 100,000 RSUs each that vest in 1/7 increments on a seven-year schedule, one of which vests on October 1 of each year commencing October 1, 2023, and the remaining four of which vest on March 15 of each year commencing on each of March 15, 2024, 2025, 2026, and 2027.</footnote>
        <footnote id="F3">Also consists of 207,130 shares of Class A Common Stock of the Company represented by RSUs granted in connection with the 2022 Employment Agreement, divided into five tranches of 50,000 RSUs each that vest in 1/7 increments on March 15 of each year commencing on each of March 15, 2024, 2025, 2026, 2027 and 2028.</footnote>
        <footnote id="F4">Also consists of 118,672 shares of Class A Common Stock of the Company held directly after the vesting and withholding described in Footnote 1.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Michael J. Rispoli</signatureName>
        <signatureDate>2026-03-16</signatureDate>
    </ownerSignature>
</ownershipDocument>
