<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0609</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-08-19</periodOfReport>

    <issuer>
        <issuerCik>0001158172</issuerCik>
        <issuerName>COMSCORE, INC.</issuerName>
        <issuerTradingSymbol>SCOR</issuerTradingSymbol>
        <issuerForeignTradingSymbol></issuerForeignTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001091667</rptOwnerCik>
            <rptOwnerName>CHARTER COMMUNICATIONS, INC. /MO/</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>400 WASHINGTON BLVD.</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>STAMFORD</rptOwnerCity>
            <rptOwnerState>CT</rptOwnerState>
            <rptOwnerZipCode>06902</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001850981</rptOwnerCik>
            <rptOwnerName>Charter Communications Holding Company, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>12405 POWERSCOURT DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ST. LOUIS</rptOwnerCity>
            <rptOwnerState>MO</rptOwnerState>
            <rptOwnerZipCode>63131</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001377013</rptOwnerCik>
            <rptOwnerName>SPECTRUM MANAGEMENT HOLDING COMPANY, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>12405 POWERSCOURT DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ST. LOUIS</rptOwnerCity>
            <rptOwnerState>MO</rptOwnerState>
            <rptOwnerZipCode>63131</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001085476</rptOwnerCik>
            <rptOwnerName>CHARTER COMMUNICATIONS HOLDINGS LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>12405 POWERSCOURT DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ST. LOUIS</rptOwnerCity>
            <rptOwnerState>MO</rptOwnerState>
            <rptOwnerZipCode>63131</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001266604</rptOwnerCik>
            <rptOwnerName>CCH II LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>12405 POWERSCOURT DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ST. LOUIS</rptOwnerCity>
            <rptOwnerState>MO</rptOwnerState>
            <rptOwnerZipCode>63131</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>false</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-08-19</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>3286825</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>6582008</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Series C Convertible Preferred Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F3"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2026-08-19</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>4223621</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F3"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F3"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>4223621</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>8447242</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">On August 19, 2026, as a result of the Combination (as defined in the Remarks section), Charter (as defined in the Remarks section) acquired Liberty Broadband (as defined in the Remarks section), and as a result of the Combination, Charter became the beneficial owner of all the shares of Common Stock and Series C Convertible Preferred Stock that were beneficially owned by Liberty Broadband.</footnote>
        <footnote id="F2">Charter Communications Holding Company, LLC (&quot;HoldCo&quot;) is the record holder of the reported shares.  Spectrum Management Holding Company, LLC (&quot;Spectrum Management&quot;) is the controlling parent company of HoldCo.  Charter Communications Holdings, LLC (&quot;Holdings&quot;) is the controlling parent company of Spectrum Management.  CCH II, LLC (&quot;CCH II&quot;) is the controlling parent company of Holdings.  Charter is the controlling parent company of CCH II.</footnote>
        <footnote id="F3">Shares of Series C Convertible Preferred Stock are convertible at the option of the holder at any time into the number of shares of Common Stock equal to the conversion rate (as defined in the Certificate of Designations of the Series C Convertible Preferred Stock).  Pursuant to the Certificate of Designations of the Series C Convertible Preferred Stock, no holder of Series C Convertible Preferred Stock may convert Series C Convertible Preferred Stock in an amount that would cause such holder to beneficially own over immediately following such conversion more than 49.99% of the then outstanding shares of Common Stock.  Upon conversion, the holder will receive cash in lieu of fractional shares (if any) and shall fully participate, on an as-converted basis, in any dividends declared and paid or distributions on the Common Stock as if the Series C Preferred Stock were converted.  Shares of Series C Convertible Preferred Stock have no expiration date.</footnote>
    </footnotes>

    <remarks>Pursuant to the Agreement and Plan of Merger, dated as of November 12, 2024 (the &quot;Merger Agreement&quot;), by and among Liberty Broadband Corporation (&quot;Liberty Broadband&quot;), Charter Communications, Inc. (&quot;Charter&quot;), Fusion Merger Sub 1, LLC, a Delaware limited liability company and wholly owned direct subsidiary of Charter (&quot;Merger LLC&quot;), and Fusion Merger Sub 2, Inc., a Delaware corporation and wholly owned direct subsidiary of Merger LLC (&quot;Merger Sub&quot;), on August 19, 2026, Merger Sub merged with and into Liberty Broadband (the &quot;Merger&quot;), with Liberty Broadband surviving the Merger as a wholly owned subsidiary of Merger LLC, and immediately following the Merger, Liberty Broadband (as the surviving corporation in the Merger) merged with and into Merger LLC (the &quot;Upstream Merger,&quot; and together with the Merger, the &quot;Combination&quot;), with Merger LLC surviving the Upstream Merger as the surviving company and a wholly owned subsidiary of Charter.</remarks>

    <ownerSignature>
        <signatureName>Charter Communications, Inc.
By: Jessica M. Fischer, Chief Financial Officer /s/ Jessica M. Fischer</signatureName>
        <signatureDate>2026-08-21</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Charter Communications Holding Company, LLC
By: Jessica M. Fischer, Chief Financial Officer /s/ Jessica M. Fischer</signatureName>
        <signatureDate>2026-08-21</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Spectrum Management Holding Company, LLC
By: Jessica M. Fischer, Chief Financial Officer /s/ Jessica M. Fischer</signatureName>
        <signatureDate>2026-08-21</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Charter Communications Holdings, LLC
By: Jessica M. Fischer, Chief Financial Officer /s/ Jessica M. Fischer</signatureName>
        <signatureDate>2026-08-21</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>CCH II, LLC
By: Jessica M. Fischer, Chief Financial Officer /s/ Jessica M. Fischer</signatureName>
        <signatureDate>2026-08-21</signatureDate>
    </ownerSignature>
</ownershipDocument>
