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    <periodOfReport>2023-03-10</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0001679082</issuerCik>
        <issuerName>Myovant Sciences Ltd.</issuerName>
        <issuerTradingSymbol>MYOV</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001881504</rptOwnerCik>
            <rptOwnerName>Mehra Uneek</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MYOVANT SCIENCES, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>2000 SIERRA POINT PARKWAY, 9TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>BRISBANE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94005</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Principal Financial Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

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            <transactionTimeliness>
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            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>20724</value>
                </transactionShares>
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    <derivativeTable>
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            <securityTitle>
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                    <value>165192</value>
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                    <value>D</value>
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            <expirationDate>
                <value>2031-09-14</value>
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                <underlyingSecurityTitle>
                    <value>Common Shares</value>
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                <underlyingSecurityShares>
                    <value>165192</value>
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        <derivativeTransaction>
            <securityTitle>
                <value>Performance Stock Unit</value>
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                <value></value>
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                    <value>111111</value>
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                <underlyingSecurityShares>
                    <value>111111</value>
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    <footnotes>
        <footnote id="F1">On March 10, 2023, Sumitovant Biopharma Ltd. (&quot;Sumitovant&quot;) acquired all of the common shares of the Issuer not previously held by it pursuant to the terms of an Agreement and Plan of Merger, dated as of October 23, 2022 (the &quot;Merger Agreement&quot;), and a related Statutory Merger Agreement (the &quot;Statutory Merger Agreement&quot;, and together with the Merger Agreement, the &quot;Merger Agreements&quot;), entered into by and among the Issuer, Sumitovant, Zeus Sciences Ltd., a wholly owned subsidiary of Sumitovant (&quot;Merger Sub&quot;), and other parties thereto.  Pursuant to the Merger Agreements, Merger Sub merged with and into the Issuer, with the Issuer continuing as a wholly owned subsidiary of Sumitovant (the &quot;Merger&quot;).</footnote>
        <footnote id="F2">At the effective time of the Merger (the &quot;Effective Time&quot;), each common share of the Issuer outstanding immediately prior to the Effective Time (other than certain excluded shares) automatically converted into the right to receive $27.00 in cash, without interest and less any applicable withholding taxes (the &quot;Per Share Consideration&quot;).</footnote>
        <footnote id="F3">Reflects restricted stock units (&quot;RSUs&quot;).  Each RSU outstanding immediately prior to the Effective Time that had not been settled in Issuer common shares was canceled and converted into the right to receive an amount (subject to any applicable withholding tax) in cash, without interest, equal to the product of (a) the Per Share Consideration, multiplied by (b) the total number of Issuer common shares subject to such RSU immediately prior to the Effective Time.</footnote>
        <footnote id="F4">One-fourth of the options vested on September 15, 2022, and one-sixteenth of the options vest each quarter thereafter.</footnote>
        <footnote id="F5">Each then-outstanding and unexercised Issuer stock option (whether vested or unvested) was canceled and converted into the right to receive an amount (subject to any withholding tax) in cash, without interest, equal to the product of (a) the excess, if any, of (i) the Per Share Consideration over (ii) the applicable exercise price for such option, multiplied by (b) the total number of Issuer common shares subject to such option.</footnote>
        <footnote id="F6">Each performance-based restricted stock unit (&quot;PSU&quot;) outstanding immediately prior to the Effective Time that had not been settled in Issuer common shares was canceled and converted into the right to receive an amount (subject to any applicable withholding tax) in cash, without interest, equal to the product of (a) the Per Share Consideration, multiplied by (b) the total number of Issuer common shares subject to such PSUs (deeming performance goals as being satisfied) immediately prior to the Effective Time.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/  Matthew Lang, Attorney-in-fact</signatureName>
        <signatureDate>2023-03-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
