<SEC-DOCUMENT>0001567619-21-017092.txt : 20210914
<SEC-HEADER>0001567619-21-017092.hdr.sgml : 20210914
<ACCEPTANCE-DATETIME>20210914212951
ACCESSION NUMBER:		0001567619-21-017092
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210913
FILED AS OF DATE:		20210914
DATE AS OF CHANGE:		20210914

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Peker Lev
		CENTRAL INDEX KEY:			0001761840

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-33264
		FILM NUMBER:		211253999

	MAIL ADDRESS:	
		STREET 1:		US AUTO PARTS
		STREET 2:		16941 KEEGAN AVENUE
		CITY:			CARSON
		STATE:			CA
		ZIP:			90746

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CarParts.com, Inc.
		CENTRAL INDEX KEY:			0001378950
		STANDARD INDUSTRIAL CLASSIFICATION:	RETAIL-AUTO & HOME SUPPLY STORES [5531]
		IRS NUMBER:				680623433
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0101

	BUSINESS ADDRESS:	
		STREET 1:		2050 W. 190TH STREET
		CITY:			TORRANCE
		STATE:			CA
		ZIP:			90504
		BUSINESS PHONE:		(310) 735-0085

	MAIL ADDRESS:	
		STREET 1:		2050 W. 190TH STREET
		CITY:			TORRANCE
		STATE:			CA
		ZIP:			90504

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	U.S. Auto Parts Network, Inc.
		DATE OF NAME CHANGE:	20061023
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-09-13</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001378950</issuerCik>
        <issuerName>CarParts.com, Inc.</issuerName>
        <issuerTradingSymbol>PRTS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001761840</rptOwnerCik>
            <rptOwnerName>Peker Lev</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2050 W. 190TH STREET, SUITE 400</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>TORRANCE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90504</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Executive Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-09-13</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>18017</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>17.69</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>934456</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>38869</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By IRA</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>56000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By Spouse's IRA</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Represents shares of common stock sold by the Reporting Person to satisfy certain tax withholding obligations associated with the quarterly vesting of 36,087 restricted stock units. These restricted stock units were previously reported as shares acquired in the Form 4 filed on March 11, 2021 because the performance criteria was satisfied at that time.</footnote>
        <footnote id="F2">Certain of these shares are subject to a restricted stock award, pursuant to which such shares will vest in quarterly installments through March 9, 2023 in accordance with the applicable vesting schedule, provided that the Reporting Person remains an employee of the Company through each vesting date.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Lev Peker</signatureName>
        <signatureDate>2021-09-14</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
