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

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2020-07-23</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001492658</issuerCik>
        <issuerName>Wright Medical Group N.V.</issuerName>
        <issuerTradingSymbol>WMGI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001763512</rptOwnerCik>
            <rptOwnerName>Wallace Steven P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1023 CHERRY ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>MEMPHIS</rptOwnerCity>
            <rptOwnerState>TN</rptOwnerState>
            <rptOwnerZipCode>38117</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President, International</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Ordinary Shares, par value EUR 0.03 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2020-07-23</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>10731</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>24421</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">These ordinary shares will be issued over time upon vesting pursuant to restricted stock units granted under the Wright Medical Group N.V. Amended and Restated 2017 Equity and Incentive Plan.  The grant agreement contemplates that the shares will vest pro rata through the closing of the previously announced Stryker transaction, and shares unvested at closing will be cancelled.</footnote>
        <footnote id="F2">Includes 5,232 shares that will be issued over time upon vesting pursuant to a restricted stock unit granted under the Wright Medical Group N.V. 2017 Equity and Incentive Plan and 14,670 shares that will be issued over time upon vesting pursuant to restricted stock units granted under the Wright Medical Group N.V. Amended and Restated 2017 Equity and Incentive Plan.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Marija Nelson, attorney-in-fact</signatureName>
        <signatureDate>2020-07-27</signatureDate>
    </ownerSignature>
</ownershipDocument>
