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

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2025-01-29</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001761696</issuerCik>
        <issuerName>Crown Electrokinetics Corp.</issuerName>
        <issuerTradingSymbol>CRKN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001851815</rptOwnerCik>
            <rptOwnerName>SBI Securities Co., Ltd.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>IZUMI GARDEN TOWER</rptOwnerStreet1>
            <rptOwnerStreet2>1-6-1 ROPPONGI MINATO-KU</rptOwnerStreet2>
            <rptOwnerCity>TOKYO</rptOwnerCity>
            <rptOwnerState>M0</rptOwnerState>
            <rptOwnerZipCode>1066019</rptOwnerZipCode>
            <rptOwnerStateDescription>JAPAN</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>1</isOther>
            <otherText>See Remarks</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <remarks>This statement is being filed by SBI Securities Co., Ltd. (the &quot;Reporting Person&quot;),The
Reporting Person disclaims beneficial ownership of the securities reported herein
except to the extent of its pecuniary interest therein. On January 29, 2025,
the Reporting Person experienced an increase in its beneficial ownership of
Crown Electrokinetics Corp. (the &quot;Issuer&quot;) to above 10% of the outstanding common stock
of the Issuer due to a securities borrow transaction. But, as of the date of this
statement, the percentage of its beneficial ownership is below 10% due to repayment of
borrowed shares.</remarks>

    <ownerSignature>
        <signatureName>Masato Takamura</signatureName>
        <signatureDate>2025-02-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
