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

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-02-03</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0001468666</issuerCik>
        <issuerName>SecureWorks Corp</issuerName>
        <issuerTradingSymbol>SCWX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001571996</rptOwnerCik>
            <rptOwnerName>Dell Technologies Inc.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ONE DELL WAY</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ROUND ROCK</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>78682</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001658092</rptOwnerCik>
            <rptOwnerName>Dell Marketing L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ONE DELL WAY</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ROUND ROCK</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>78682</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001658086</rptOwnerCik>
            <rptOwnerName>Dell Marketing GP L.L.C.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>ONE DELL WAY</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ROUND ROCK</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>78682</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Class B Common Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2025-02-03</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>U</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>70000000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>70000000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Each share of Class B common stock, par value $0.01 per share (the &quot;Class B Common Stock&quot;) of SecureWorks Corp. (the &quot;Company&quot;) is convertible into one share of Class A common stock, par value $0.01 per share (the &quot;Class A Common Stock&quot;) of the Company at any time, at the holder's option, and has no expiration date.</footnote>
        <footnote id="F2">On February 3, 2025, SecureWorks Corp. (the &quot;Issuer&quot;) completed the previously announced transaction with Sophos Inc., pursuant to the Agreement and Plan of Merger dated as of October 21, 2024 (the &quot;Merger Agreement&quot;), whereby Sophos Inc. indirectly acquired the Issuer (the &quot;Merger&quot;). In connection with the Merger, each share of Class B Common Stock of the Issuer was canceled and converted into the right to receive an amount in cash equal to $8.50, without interest and less any applicable withholding taxes.</footnote>
        <footnote id="F3">The shares of Class B common stock are directly owned by Dell Marketing L.P. (&quot;DMLP&quot;). DMLP's sole general partner is Dell Marketing GP L.L.C., which is wholly owned by Dell Marketing Corporation, which in turn is indirectly wholly owned by Dell Technologies Inc. through its directly and indirectly held wholly owned subsidiaries Denali Intermediate Inc., Dell Inc. and Dell International L.L.C.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Dell Technologies Inc. /s/ Christopher A. Garcia, Senior Vice President and Assistant Corporate Secretary</signatureName>
        <signatureDate>2025-02-05</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Dell Marketing L.P. /s/ Christopher A. Garcia Senior Vice President and Assistant Corporate Secretary</signatureName>
        <signatureDate>2025-02-05</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Dell Marketing GP L.L.C. /s/ Christopher A. Garcia Senior Vice President and Assistant Corporate Secretary</signatureName>
        <signatureDate>2025-02-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
