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

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2018-02-21</periodOfReport>

    <issuer>
        <issuerCik>0000826326</issuerCik>
        <issuerName>ARC Group Worldwide, Inc.</issuerName>
        <issuerTradingSymbol>ARCW</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001449359</rptOwnerCik>
            <rptOwnerName>Everest Hill Group Inc.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>TROPIC ISLE BUILDING</rptOwnerStreet1>
            <rptOwnerStreet2>P O BOX 3331</rptOwnerStreet2>
            <rptOwnerCity>ROAD TOWN TORTOLA</rptOwnerCity>
            <rptOwnerState>D8</rptOwnerState>
            <rptOwnerZipCode>VG 1110</rptOwnerZipCode>
            <rptOwnerStateDescription>VIRGIN ISLANDS, BRITISH</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2018-02-23</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>2466604</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>2</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>11534726</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Subsidiaries</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Wayne Quasha settled the Everest Trust, which has three sub-trusts, the AQ Everest Trust, the JQ Everest Trust and the WQ Everest Trust, (&quot;Everest&quot;).  Q Management Services (PTC), as Trustee of Everest owns all of the shares of Everest which controls Herbard Limited, Carret P.T., LP, Evansville Limited, QMP Holdings Corp and QTS Holding Corp. Vicali Services (BVI) Inc., a British Virgin Islands company (&quot;Vicali&quot;), is the sole director of Everest and Q Management Services (PTC) Ltd., and Susan V. Demers, a United States citizen (&quot;Demers&quot;), and Andrea J. Douglas, a citizen of New Zealand (&quot;Douglas&quot;), are the directors of Vicali.</footnote>
        <footnote id="F2">Wayne Quasha, an Australian citizen, ultimately beneficially owns all of the shares of Everest, and as such, is in a position, indirectly, to determine the investment and voting positions made by Everest.  Carret P.T., LP is a Delaware limited partnership of which BMCC LLC serves as the general partner and Everest serves as the sole limited partner.  Everest holds its interest in the issuer through Herbard Limited, Carret P.T., LP, Evansville Limited, QMP Holdings Corp and QTS Holding Corp. The shares are being purchased pursuant to a subscription rights offering.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Susan V. Demers</signatureName>
        <signatureDate>2018-02-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
