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    <periodOfReport>2016-09-26</periodOfReport>

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    <issuer>
        <issuerCik>0001493712</issuerCik>
        <issuerName>Cell MedX Corp.</issuerName>
        <issuerTradingSymbol>CMXC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001626660</rptOwnerCik>
            <rptOwnerName>ARNETT JEAN M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1616 BAYSHORE DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2>UNIT 904</rptOwnerStreet2>
            <rptOwnerCity>VANCOUVER</rptOwnerCity>
            <rptOwnerState>A1</rptOwnerState>
            <rptOwnerZipCode>V6G 3L1</rptOwnerZipCode>
            <rptOwnerStateDescription>BRITISH COLUMBIA, CANADA</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

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                <underlyingSecurityTitle>
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                </underlyingSecurityTitle>
                <underlyingSecurityShares>
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    <footnotes>
        <footnote id="F1">The Options were to vest upon the completion of first clinical trial and delivery of final white paper for the first clinical trial.</footnote>
        <footnote id="F2">The Options were to vest upon the design and commencement of the second clinical trial.</footnote>
        <footnote id="F3">The Options were to vest upon the completion of second clinical trial and delivery of final white paper for the second clinical trial.</footnote>
        <footnote id="F4">The Options were to vest upon the design and commencement of the third clinical trial.</footnote>
        <footnote id="F5">The Options were to vest upon the completion of the third clinical trial and delivery of final white paper for the third clinical trial.</footnote>
        <footnote id="F6">Options that would have vested were to expire 5 years after vesting. Options that have not vested would have expired on 12/31/2019.</footnote>
    </footnotes>

    <remarks>Disposition is associated with the cancellation of the unvested portion of the options originally granted to Ms. Arnett by the Issuer pursuant to the Option Agreement between the Company and Ms. Arnett dated for reference November 25, 2014.</remarks>

    <ownerSignature>
        <signatureName>Jean M. Arnett</signatureName>
        <signatureDate>2018-08-24</signatureDate>
    </ownerSignature>
</ownershipDocument>
