<SEC-DOCUMENT>0001209191-19-048206.txt : 20190904
<SEC-HEADER>0001209191-19-048206.hdr.sgml : 20190904
<ACCEPTANCE-DATETIME>20190904163235
ACCESSION NUMBER:		0001209191-19-048206
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20190903
FILED AS OF DATE:		20190904
DATE AS OF CHANGE:		20190904

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Yang Vivian
		CENTRAL INDEX KEY:			0001615037

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37879
		FILM NUMBER:		191074996

	MAIL ADDRESS:	
		STREET 1:		100 NORTH CRESCENT DRIVE, SUITE 200
		CITY:			BEVERLY HILLS
		STATE:			CA
		ZIP:			90210

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Trade Desk, Inc.
		CENTRAL INDEX KEY:			0001671933
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROGRAMMING, DATA PROCESSING, ETC. [7370]
		IRS NUMBER:				271887399
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		42 N. CHESTNUT STREET
		CITY:			VENTURA
		STATE:			CA
		ZIP:			93001
		BUSINESS PHONE:		(805) 585-3434

	MAIL ADDRESS:	
		STREET 1:		42 N. CHESTNUT STREET
		CITY:			VENTURA
		STATE:			CA
		ZIP:			93001
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
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    <periodOfReport>2019-09-03</periodOfReport>

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        <issuerCik>0001671933</issuerCik>
        <issuerName>Trade Desk, Inc.</issuerName>
        <issuerTradingSymbol>TTD</issuerTradingSymbol>
    </issuer>

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            <rptOwnerCik>0001615037</rptOwnerCik>
            <rptOwnerName>Yang Vivian</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O THE TRADE DESK, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>42 NORTH CHESTNUT STREET</rptOwnerStreet2>
            <rptOwnerCity>VENTURA</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>93001</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Legal Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

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                    <value>365</value>
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                <transactionPricePerShare>
                    <value>142.45</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
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            </transactionDate>
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    <derivativeTable>
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            <transactionDate>
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            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
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                <transactionShares>
                    <value>902</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
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            <exerciseDate>
                <footnoteId id="F2"/>
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            <expirationDate>
                <value>2026-12-22</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
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                    <value>902</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
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                <sharesOwnedFollowingTransaction>
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                <value>2019-09-03</value>
            </transactionDate>
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                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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                <value></value>
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            <transactionAmounts>
                <transactionShares>
                    <value>875</value>
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                <transactionPricePerShare>
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                </transactionAcquiredDisposedCode>
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            <exerciseDate>
                <footnoteId id="F3"/>
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            <expirationDate>
                <value>2027-12-01</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>875</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
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                <sharesOwnedFollowingTransaction>
                    <value>23637</value>
                </sharesOwnedFollowingTransaction>
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                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
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        <derivativeTransaction>
            <securityTitle>
                <value>Employee Stock Option (Right to Buy)</value>
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                <transactionCode>M</transactionCode>
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                <value></value>
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                <transactionPricePerShare>
                    <value>0.00</value>
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                <transactionAcquiredDisposedCode>
                    <value>D</value>
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            <exerciseDate>
                <footnoteId id="F4"/>
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            <expirationDate>
                <value>2028-12-01</value>
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                <underlyingSecurityTitle>
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                <underlyingSecurityShares>
                    <value>365</value>
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                <sharesOwnedFollowingTransaction>
                    <value>14250</value>
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    <footnotes>
        <footnote id="F1">The sales reported in this Form 4 were effected pursuant to a 10b5-1 trading plan adopted by the Reporting Person in accordance with Rule 10b5-1 of the Securities Exchange Act of 1934, as amended.</footnote>
        <footnote id="F2">The option was granted on December 23, 2016. The Vesting Commencement Date (&quot;VCD&quot;) is December 1, 2016. One forty-eighth (1/48) of the shares subject to the option vest each monthly anniversary of the VCD, subject to continued employment with the Issuer through the applicable vesting dates.</footnote>
        <footnote id="F3">The option was granted on December 1, 2017, the VCD. One forty-eighth (1/48) of the shares subject to the option vest each monthly anniversary of the VCD , subject to continued employment with the Issuer through the applicable vesting dates.</footnote>
        <footnote id="F4">The option was granted on December 1, 2018, the VCD. One forty-eighth (1/48th) of the shares subject to the option vest each monthly anniversary of the VCD, subject to continued employment with the Issuer through the applicable vesting dates.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Paul E. Ross, Attorney-in-Fact for Vivian Yang</signatureName>
        <signatureDate>2019-09-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
