<SEC-DOCUMENT>0001628280-26-049191.txt : 20260722
<SEC-HEADER>0001628280-26-049191.hdr.sgml : 20260722
<ACCEPTANCE-DATETIME>20260722161505
ACCESSION NUMBER:		0001628280-26-049191
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260720
FILED AS OF DATE:		20260722
DATE AS OF CHANGE:		20260722

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Rushing Coretha M
		CENTRAL INDEX KEY:			0001362321
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40249
		FILM NUMBER:		261193851

	MAIL ADDRESS:	
		STREET 1:		C/O EQUIFAX INC.
		STREET 2:		1550 PEACHTREE STREET NW
		CITY:			ATLANTA
		STATE:			GA
		ZIP:			30309

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ThredUp Inc.
		CENTRAL INDEX KEY:			0001484778
		STANDARD INDUSTRIAL CLASSIFICATION:	RETAIL-CATALOG & MAIL-ORDER HOUSES [5961]
		ORGANIZATION NAME:           	07 Trade & Services
		EIN:				264009181
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		969 BROADWAY
		STREET 2:		SUITE 200
		CITY:			OAKLAND
		STATE:			CA
		ZIP:			94607
		BUSINESS PHONE:		415-402-5202

	MAIL ADDRESS:	
		STREET 1:		969 BROADWAY
		STREET 2:		SUITE 200
		CITY:			OAKLAND
		STATE:			CA
		ZIP:			94607

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	thredUP
		DATE OF NAME CHANGE:	20100222
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wk-form4_1784751302.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0609</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-07-20</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001484778</issuerCik>
        <issuerName>ThredUp Inc.</issuerName>
        <issuerTradingSymbol>TDUP</issuerTradingSymbol>
        <issuerForeignTradingSymbol></issuerForeignTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001362321</rptOwnerCik>
            <rptOwnerName>Rushing Coretha M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>C/O THREDUP INC.</rptOwnerStreet1>
            <rptOwnerStreet2>969 BROADWAY, SUITE 200</rptOwnerStreet2>
            <rptOwnerCity>OAKLAND</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94607</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-07-20</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>2265</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>193426</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Grant of fully vested restricted stock units (&quot;RSUs&quot;) under the Issuer's 2021 Stock Option and Incentive Plan in a transaction exempt under Rule 16b-3. Each RSU represents a right to receive one share of the Issuer's Class A Common Stock. The Reporting Person elected to receive RSUs in lieu of her annual cash retainer, which retainer is paid in quarterly installments. The Reporting Person elected to defer distribution until the earliest of (a) 30 days after the Reporting Person's separation from service on the Board within the meaning of Section 409A of the Internal Revenue Code of 1986, as amended (&quot;Section 409A&quot;), (b) a Sale Event (as defined in the Issuer's 2021 Stock Option and Incentive Plan) that constitutes a change in control under Section 409A, or (c) 30 days after the Reporting Person's death.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Alon Rotem, Attorney-in-Fact</signatureName>
        <signatureDate>2026-07-22</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
