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

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-07-26</periodOfReport>

    <issuer>
        <issuerCik>0001275158</issuerCik>
        <issuerName>NOODLES &amp; Co</issuerName>
        <issuerTradingSymbol>NDLS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001396318</rptOwnerCik>
            <rptOwnerName>PUBLIC SECTOR PENSION INVESTMENT BOARD</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1250 RENE-LEVESQUE BLVD WEST</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1400</rptOwnerStreet2>
            <rptOwnerCity>MONTREAL</rptOwnerCity>
            <rptOwnerState>A8</rptOwnerState>
            <rptOwnerZipCode>H3B 5E9</rptOwnerZipCode>
            <rptOwnerStateDescription>QUEBEC, CANADA</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001579903</rptOwnerCik>
            <rptOwnerName>Argentia Private Investments Inc.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1250 RENE LEVESQUE BOULEVARD WEST</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1400</rptOwnerStreet2>
            <rptOwnerCity>MONTREAL</rptOwnerCity>
            <rptOwnerState>A8</rptOwnerState>
            <rptOwnerZipCode>H3B 5E9</rptOwnerZipCode>
            <rptOwnerStateDescription>QUEBEC, CANADA</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2018-07-26</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1698805</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>9.5</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>6583044</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnotes</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Shares are owned directly by Argentia Private Investments Inc., which is a wholly owned subsidiary of Public Sector Pension Investment Board (&quot;PSPIB&quot;).  PSPIB is an indirect beneficial owner of the reported securities.</footnote>
        <footnote id="F2">Each Reporting Person disclaims beneficial ownership of the reported securities except to the extent of its pecuniary interest therein.</footnote>
    </footnotes>

    <remarks>Exhibit 99.1 - Joint Filer Information, filed herewith and incorporated by reference herein</remarks>

    <ownerSignature>
        <signatureName>/s/ Darren Baccus, Senior Vice President and Chief Legal Officer</signatureName>
        <signatureDate>2018-07-30</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Martin Longchamps, Managing Director, Private Equity</signatureName>
        <signatureDate>2018-07-30</signatureDate>
    </ownerSignature>
</ownershipDocument>
