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

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-12-07</periodOfReport>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001745441</rptOwnerCik>
            <rptOwnerName>Bauer Virginia S</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>
            <isDirector>1</isDirector>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A common stock, par value $0.01 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2018-12-07</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>10000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>8.38</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>19433</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Includes 9,433 restricted stock units (&quot;RSUs&quot;) granted under the Newmark Group, Inc. Long Term Incentive Plan.  Each RSU represents a contingent right to receive one share of Class A Common Stock, par value $0.01 per share.  Of the 9,433 RSUs, 2,460 RSUs will vest on June 29, 2019, 2,257 RSUs will vest on September 25, 2019, 2,460 RSUs will vest on June 29, 2020 and 2,256 RSUs will vest on September 25, 2020, provided that the reporting person continues to serve as a member of the Board of Directors on such dates.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Virginia S. Bauer</signatureName>
        <signatureDate>2018-12-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
