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

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2021-06-10</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001841925</issuerCik>
        <issuerName>indie Semiconductor, Inc.</issuerName>
        <issuerTradingSymbol>INDI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001318331</rptOwnerCik>
            <rptOwnerName>Woodward William</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ANTHEM VENTURE PARTNERS</rptOwnerStreet1>
            <rptOwnerStreet2>225 ARIZONA AVENUE, SUITE 200</rptOwnerStreet2>
            <rptOwnerCity>SANTA MONICA</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90401</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class A Common Stock, par value $0.0001</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>514305</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class A Common Stock, par value $0.0001</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>13229944</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote 2.</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Pursuant to the Master Transactions Agreement by and among Thunder Bridge II Surviving Pubco, Inc., Thunder Bridge Acquisition II, Ltd., Ay Dee Kay, LLC d/b/a indie Semiconductor (&quot;ADK&quot;) and certain other parties (dated as of December 14, 2020 and amended that same date) (the &quot;Agreement&quot;), the Reporting Person's 18,500 ADK units were converted into 516,305 shares of the Issuer's Class A Common Stock upon the closing of the transactions contemplated by the Agreement.</footnote>
        <footnote id="F2">The Reporting Person may be deemed to be the beneficial owner of these shares, which are owned by Anthem/MIC Strategic Partners LP (&quot;ASP&quot;).  The Reporting Person is the managing member of Anthem Strategic Capital LLC, which is the general partner of ASP. The Reporting Person disclaims any beneficial interest in these shares except to the extent of his pecuniary interest therein.</footnote>
    </footnotes>

    <remarks>Exhibit List - Exhibit 1 - Power of Attorney</remarks>

    <ownerSignature>
        <signatureName>/s/ William Woodward, by Ellen Bancroft pursuant to power of attorney filed herewith</signatureName>
        <signatureDate>2021-06-21</signatureDate>
    </ownerSignature>
</ownershipDocument>
