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            <liveTestFlag>LIVE</liveTestFlag>



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            <issuerName>TRADE DESK INC CLASS A</issuerName>
            <secFileNumber>001-37879</secFileNumber>
            <issuerAddress>
                <ns2:street1>42 N. Chestnut Street</ns2:street1>
                <ns2:city>Ventura</ns2:city>
                <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                <ns2:zipCode>93001</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>8055853434</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>DAVE PICKLES</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Director</relationshipToIssuer>
                <relationshipToIssuer>Officer</relationshipToIssuer>
            </relationshipsToIssuer>
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        <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>38th Fl.</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10004</ns2:zipCode>
                </address>
            </brokerOrMarketmakerDetails>
            <noOfUnitsSold>22345</noOfUnitsSold>
            <aggregateMarketValue>1512086.15</aggregateMarketValue>
            <noOfUnitsOutstanding>444813611</noOfUnitsOutstanding>
            <approxSaleDate>05/30/2023</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
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        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>05/30/2023</acquiredDate>
            <natureOfAcquisitionTransaction>Exercise of Stock Options</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>22345</amountOfSecuritiesAcquired>
            <paymentDate>05/30/2023</paymentDate>
            <natureOfPayment>Cash</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
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                <name>10b5-1 Sales Plan for DAVE PICKLES</name>
                <address>
                    <ns2:street1>42 N. Chestnut Street</ns2:street1>
                    <ns2:city>Ventura</ns2:city>
                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>93001</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>05/15/2023</saleDate>
            <amountOfSecuritiesSold>2020</amountOfSecuritiesSold>
            <grossProceeds>125785.40</grossProceeds>
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        <securitiesSoldInPast3Months>
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                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>93001</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>05/01/2023</saleDate>
            <amountOfSecuritiesSold>2060</amountOfSecuritiesSold>
            <grossProceeds>131160.20</grossProceeds>
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                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>93001</ns2:zipCode>
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            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>04/17/2023</saleDate>
            <amountOfSecuritiesSold>2020</amountOfSecuritiesSold>
            <grossProceeds>122614.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
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                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>93001</ns2:zipCode>
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            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>04/03/2023</saleDate>
            <amountOfSecuritiesSold>2050</amountOfSecuritiesSold>
            <grossProceeds>123000.00</grossProceeds>
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        <securitiesSoldInPast3Months>
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                    <ns2:zipCode>93001</ns2:zipCode>
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            <securitiesClassTitle>Common</securitiesClassTitle>
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            <grossProceeds>41272272.61</grossProceeds>
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        <securitiesSoldInPast3Months>
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                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>93001</ns2:zipCode>
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            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
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            <amountOfSecuritiesSold>473447</amountOfSecuritiesSold>
            <grossProceeds>28530484.36</grossProceeds>
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        <securitiesSoldInPast3Months>
            <sellerDetails>
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                <address>
                    <ns2:street1>42 N. Chestnut Street</ns2:street1>
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                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>93001</ns2:zipCode>
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            <securitiesClassTitle>Common</securitiesClassTitle>
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                    <ns2:zipCode>93001</ns2:zipCode>
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        </securitiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>05/30/2023</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>02/21/2023</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Dave Pickles</signature>
        </noticeSignature>
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144
0001671685
XXXXXXXX
LIVE
0001671933
TRADE DESK INC CLASS A
001-37879
42 N. Chestnut Street
Ventura
CA
93001
8055853434
DAVE PICKLES
Director
Officer
COMMON
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
38th Fl.
New York
NY
10004
22345
1512086.15
444813611
05/30/2023
NASDAQ
Common
05/30/2023
Exercise of Stock Options
Issuer
N
22345
05/30/2023
Cash
N
10b5-1 Sales Plan for DAVE PICKLES
42 N. Chestnut Street
Ventura
CA
93001
Common
05/15/2023
2020
125785.40
10b5-1 Sales Plan for DAVE PICKLES
42 N. Chestnut Street
Ventura
CA
93001
Common
05/01/2023
2060
131160.20
10b5-1 Sales Plan for DAVE PICKLES
42 N. Chestnut Street
Ventura
CA
93001
Common
04/17/2023
2020
122614.00
10b5-1 Sales Plan for DAVE PICKLES
42 N. Chestnut Street
Ventura
CA
93001
Common
04/03/2023
2050
123000.00
10b5-1 Sales Plan for DAVE PICKLES
42 N. Chestnut Street
Ventura
CA
93001
Common
03/31/2023
679549
41272272.61
10b5-1 Sales Plan for DAVE PICKLES
42 N. Chestnut Street
Ventura
CA
93001
Common
03/30/2023
473447
28530484.36
10b5-1 Sales Plan for DAVE PICKLES
42 N. Chestnut Street
Ventura
CA
93001
Common
03/27/2023
140270
8509732.04
10b5-1 Sales Plan for DAVE PICKLES
42 N. Chestnut Street
Ventura
CA
93001
Common
03/27/2023
336924
20440100.92
05/30/2023
02/21/2023
/s/ Dave Pickles