<SEC-DOCUMENT>0001494259-25-000039.txt : 20251229
<SEC-HEADER>0001494259-25-000039.hdr.sgml : 20251229
<ACCEPTANCE-DATETIME>20251229160915
ACCESSION NUMBER:		0001494259-25-000039
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20251222
FILED AS OF DATE:		20251229
DATE AS OF CHANGE:		20251229

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Trevisan Jason
		CENTRAL INDEX KEY:			0001718636
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38233
		FILM NUMBER:		251609244

	MAIL ADDRESS:	
		STREET 1:		C/O CARGURUS, INC.
		STREET 2:		1001 BOYLSTON STREET, 16TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02115

	FORMER NAME:	
		FORMER CONFORMED NAME:	Trevison Jason
		DATE OF NAME CHANGE:	20171003

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CarGurus, Inc.
		CENTRAL INDEX KEY:			0001494259
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROCESSING & DATA PREPARATION [7374]
		ORGANIZATION NAME:           	06 Technology
		EIN:				043843478
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1001 BOYLSTON STREET
		STREET 2:		16TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02115
		BUSINESS PHONE:		617 354 0068

	MAIL ADDRESS:	
		STREET 1:		1001 BOYLSTON STREET
		STREET 2:		16TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02115

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Cargurus LLC
		DATE OF NAME CHANGE:	20100615
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-12-22</periodOfReport>

    <issuer>
        <issuerCik>0001494259</issuerCik>
        <issuerName>CarGurus, Inc.</issuerName>
        <issuerTradingSymbol>CARG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001718636</rptOwnerCik>
            <rptOwnerName>Trevisan Jason</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1001 BOYLSTON STREET</rptOwnerStreet1>
            <rptOwnerStreet2>16TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>BOSTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02115</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <officerTitle>Chief Executive Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>1</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-12-22</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>8452</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>39.04</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>647031</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-12-23</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>16548</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>39.02</value>
                    <footnoteId id="F3"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>630483</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>80000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>200000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F5"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.</footnote>
        <footnote id="F2">The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $39.00 to $39.17 per share, inclusive. Information regarding the number of shares sold at each separate price will be made available from the Reporting Person upon request by the staff of the U.S. Securities and Exchange Commission, the Issuer or any security holder of the Issuer.</footnote>
        <footnote id="F3">The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $39.00 to $39.06 per share, inclusive. Information regarding the number of shares sold at each separate price will be made available from the Reporting Person upon request by the staff of the U.S. Securities and Exchange Commission, the Issuer or any security holder of the Issuer.</footnote>
        <footnote id="F4">These shares are held directly by the Jason Trevisan 2019 Family Trust dated July 23, 2019 (the &quot;Family Trust&quot;), of which the Reporting Person is trustee. The Reporting Person and members of his immediate family are the beneficiaries of the Family Trust.</footnote>
        <footnote id="F5">These shares are held directly by the Trevisan 2025 Grantor Retained Annuity Trust dated March 13, 2025 (the &quot;GRAT&quot;), of which the Reporting Person is trustee. The Reporting Person's children are the beneficiaries of the GRAT.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Suzanne Murray, as attorney-in-fact</signatureName>
        <signatureDate>2025-12-29</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
