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                    <ccc>XXXXXXXX</ccc>
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            <liveTestFlag>LIVE</liveTestFlag>



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        <issuerInfo>
            <issuerCik>0001758730</issuerCik>
            <issuerName>TRADEWEB MKTS INC</issuerName>
            <secFileNumber>001-38860</secFileNumber>
            <issuerAddress>
                <ns2:street1>1177 Avenue Of The Americas </ns2:street1>
                <ns2:city>New York</ns2:city>
                <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                <ns2:zipCode>10036</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>6464306000</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>ENRICO 116,165,228</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Officer</relationshipToIssuer>
            </relationshipsToIssuer>
        </issuerInfo>
        <securitiesInformation>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <brokerOrMarketmakerDetails>
                <name>Morgan Stanley Smith Barney LLC Executive Financial Services</name>
                <address>
                    <ns2:street1>1 New York Plaza</ns2:street1>
                    <ns2:street2>8th Floor</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10004</ns2:zipCode>
                </address>
            </brokerOrMarketmakerDetails>
            <noOfUnitsSold>25000</noOfUnitsSold>
            <aggregateMarketValue>2725000.00</aggregateMarketValue>
            <noOfUnitsOutstanding>116165228</noOfUnitsOutstanding>
            <approxSaleDate>07/19/2024</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>07/19/2024</acquiredDate>
            <natureOfAcquisitionTransaction>Exercise of Stock Options</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>25000</amountOfSecuritiesAcquired>
            <paymentDate>07/19/2024</paymentDate>
            <natureOfPayment>Cash</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for ENRICO BRUNI</name>
                <address>
                    <ns2:street1>1177 Avenue Of The Americas </ns2:street1>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10036</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>07/18/2024</saleDate>
            <amountOfSecuritiesSold>6855</amountOfSecuritiesSold>
            <grossProceeds>749547.12</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for ENRICO BRUNI</name>
                <address>
                    <ns2:street1>1177 Avenue Of The Americas </ns2:street1>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10036</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>06/03/2024</saleDate>
            <amountOfSecuritiesSold>20</amountOfSecuritiesSold>
            <grossProceeds>2186.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>10b5-1 Sales for ENRICO BRUNI</name>
                <address>
                    <ns2:street1>1177 Avenue Of The Americas </ns2:street1>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10036</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>05/31/2024</saleDate>
            <amountOfSecuritiesSold>116</amountOfSecuritiesSold>
            <grossProceeds>12683.44</grossProceeds>
        </securitiesSoldInPast3Months>
        <remarks>The securities to be sold were and will be received upon the exercise of stock options over the next three months. The dates of acquisition and payment were and will be the dates of exercise/sale.&#13;
</remarks>
        <noticeSignature>
            <noticeDate>07/19/2024</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>03/01/2024</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Enrico Bruni</signature>
        </noticeSignature>
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144
0001771187
XXXXXXXX
LIVE
0001758730
TRADEWEB MKTS INC
001-38860
1177 Avenue Of The Americas
New York
NY
10036
6464306000
ENRICO 116,165,228
Officer
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
8th Floor
New York
NY
10004
25000
2725000.00
116165228
07/19/2024
NASDAQ
Common
07/19/2024
Exercise of Stock Options
Issuer
N
25000
07/19/2024
Cash
N
10b5-1 Sales for ENRICO BRUNI
1177 Avenue Of The Americas
New York
NY
10036
Common
07/18/2024
6855
749547.12
10b5-1 Sales for ENRICO BRUNI
1177 Avenue Of The Americas
New York
NY
10036
Common
06/03/2024
20
2186.00
10b5-1 Sales for ENRICO BRUNI
1177 Avenue Of The Americas
New York
NY
10036
Common
05/31/2024
116
12683.44
The securities to be sold were and will be received upon the exercise of stock options over the next three months. The dates of acquisition and payment were and will be the dates of exercise/sale.
07/19/2024
03/01/2024
/s/ Enrico Bruni