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

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2023-02-08</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001397911</issuerCik>
        <issuerName>LPL Financial Holdings Inc.</issuerName>
        <issuerTradingSymbol>LPLA</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001966430</rptOwnerCik>
            <rptOwnerName>Jambusaria Aneri</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O LPL FINANCIAL HOLDINGS INC.</rptOwnerStreet1>
            <rptOwnerStreet2>4707 EXECUTIVE DRIVE</rptOwnerStreet2>
            <rptOwnerCity>SAN DIEGO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92121</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Managing Director</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4128</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Consists of (i) 2,374 restricted stock units that vest on June 5, 2023; (ii) 860 restricted stock units that vest ratably on each of February 25, 2023 and February 25, 2024; and (iii) 894 restricted stock units that vest ratably on each of February 25, 2023, February 25, 2024 and February 25, 2025. Each restricted stock unit represents a contingent right to receive one share of Common Stock on the applicable vesting date. Vested shares will be issued to the Reporting Person as soon as practicable after the vesting date.</footnote>
    </footnotes>

    <remarks>The signatory is signing on behalf of Aneri Jambusaria pursuant to a Power of Attorney dated February 15, 2023, which is filed as Exhibit 24.1 to this filing.</remarks>

    <ownerSignature>
        <signatureName>/s/ Gregory M. Woods, Attorney-in-Fact</signatureName>
        <signatureDate>2023-02-21</signatureDate>
    </ownerSignature>
</ownershipDocument>
