<SEC-DOCUMENT>0001758730-23-000060.txt : 20230228
<SEC-HEADER>0001758730-23-000060.hdr.sgml : 20230228
<ACCEPTANCE-DATETIME>20230228161224
ACCESSION NUMBER:		0001758730-23-000060
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20230224
FILED AS OF DATE:		20230228
DATE AS OF CHANGE:		20230228

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Furber Sara
		CENTRAL INDEX KEY:			0001503180

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38860
		FILM NUMBER:		23685402

	MAIL ADDRESS:	
		STREET 1:		MORGAN STANLEY INVESTMENT MANAGEMENT
		STREET 2:		522 FIFTH AVE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10036

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Tradeweb Markets Inc.
		CENTRAL INDEX KEY:			0001758730
		STANDARD INDUSTRIAL CLASSIFICATION:	SECURITY & COMMODITY BROKERS, DEALERS, EXCHANGES & SERVICES [6200]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1177 AVENUE OF THE AMERICAS
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10036
		BUSINESS PHONE:		646-430-6000

	MAIL ADDRESS:	
		STREET 1:		1177 AVENUE OF THE AMERICAS
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10036
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_167761872795003.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2023-02-24</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001758730</issuerCik>
        <issuerName>Tradeweb Markets Inc.</issuerName>
        <issuerTradingSymbol>TW</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001503180</rptOwnerCik>
            <rptOwnerName>Furber Sara</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>TRADEWEB MARKETS INC.</rptOwnerStreet1>
            <rptOwnerStreet2>1177 AVENUE OF THE AMERICAS</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10036</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Financial Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A common stock</value>
            </securityTitle>
            <transactionDate>
                <value>2023-02-24</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>17741</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>75076</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">The reported transaction reflects the acquisition of performance-based restricted stock units (&quot;RSUs&quot;) in respect of the issuer's Class A common stock (&quot;Class A Common Stock&quot;) that were granted to the reporting person on March 15, 2022, subject to the achievement of certain performance goals in respect of calendar year 2022. The level of achievement of those performance goals was determined on February 24, 2023. These RSUs remain unvested and are scheduled to vest on January 1, 2025, subject to the reporting person's continued employment through such date.</footnote>
        <footnote id="F2">This amount includes (i) 16,672 unvested RSUs in respect of Class A Common Stock which are scheduled to vest on March 31, 2023, (ii) 4,948 unvested RSUs in respect of Class A Common Stock which are scheduled to vest on March 31, 2024, (iii) 3,619 unvested RSUs in respect of Class A Common Stock which are scheduled to vest on March 31, 2025, (iv) 8,540 unvested RSUs in respect of Class A Common Stock which are scheduled to vest on January 1, 2024, (v) 13,732 unvested RSUs in respect of Class A Common Stock which are scheduled to vest in equal installments on each of the first, second and third anniversaries of March 15, 2022, and (vi) 17,741 unvested RSUs in respect of Class A Common Stock that are scheduled to vest on January 1, 2025, in each case subject to the reporting person's continued employment through the applicable vesting date.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Scott Zucker, Attorney-in-Fact for Sara Furber</signatureName>
        <signatureDate>2023-02-28</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
