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

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-05-06</periodOfReport>

    <notSubjectToSection16>true</notSubjectToSection16>

    <issuer>
        <issuerCik>0001724670</issuerCik>
        <issuerName>Perspecta Inc.</issuerName>
        <issuerTradingSymbol>PRSP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001360891</rptOwnerCik>
            <rptOwnerName>Musallam Ramzi M</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O VERITAS CAPITAL FUND MANAGEMENT, LLC</rptOwnerStreet1>
            <rptOwnerStreet2>9 WEST 57TH STREET, 32ND FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>true</isOther>
            <otherText>See Remarks</otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001591823</rptOwnerCik>
            <rptOwnerName>Veritas Capital Partners IV, L.L.C.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O VERITAS CAPITAL FUND MANAGEMENT, LLC</rptOwnerStreet1>
            <rptOwnerStreet2>9 WEST 57TH STREET, 32ND FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001469805</rptOwnerCik>
            <rptOwnerName>Veritas Capital Fund IV, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O VERITAS CAPITAL FUND MANAGEMENT, LLC</rptOwnerStreet1>
            <rptOwnerStreet2>9 WEST 57TH STREET, 32ND FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001742035</rptOwnerCik>
            <rptOwnerName>SI Organization Holdings LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O VERITAS CAPITAL FUND MANAGEMENT, LLC</rptOwnerStreet1>
            <rptOwnerStreet2>9 WEST 57TH STREET, 32ND FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10019</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-05-06</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>23273341</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F3"/>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>100</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnotes</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                    <footnoteId id="F5"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Pursuant to that certain Agreement and Plan of Merger, dated as of January 27, 2021 (the &quot;Merger Agreement&quot;), by and among the Issuer, Jaguar ParentCo Inc., a Delaware corporation (&quot;Parent&quot;), and Jaguar Merger Sub Inc., a Nevada corporation and a wholly owned subsidiary of Parent (&quot;Merger Sub&quot;), Merger Sub merged with and into the Issuer (the &quot;Merger&quot;), with the Issuer continuing as the surviving corporation of the Merger as a wholly owned subsidiary of Parent (the &quot;Surviving Corporation&quot;).  As a result of the Merger, Parent directly holds 100 shares of common stock, par value $0.01 per share, of the Issuer (the &quot;Shares), as the Surviving Corporation, and Ramzi M. Musallam may be deemed to beneficially own such Shares.</footnote>
        <footnote id="F2">Consists of the Shares described in Footnote 1.</footnote>
        <footnote id="F3">Prior to the consummation of the Merger, (a) KGS Holding LLC, a Delaware limited liability company (&quot;KGS LLC&quot;), was the direct beneficial owner of the reported 4,396,097 shares of Common Stock of the Issuer (the &quot;Fund III Shares&quot;) and (b) The SI Organization Holdings LLC, a Delaware limited liability company (&quot;The SI LLC&quot;), was the direct beneficial owner of the reported 18,877,244 shares of Common Stock of the Issuer (the &quot;Fund IV Shares&quot;).  The Veritas Capital Partners IV, L.P., a Delaware limited partnership (&quot;Fund IV&quot;), Veritas Capital Partners IV, L.L.C., a Delaware limited liability company (&quot;Fund IV LLC&quot;, and together with The SI LLC and Fund IV, the &quot;Veritas Reporting Persons&quot;), and Ramzi M. Musallam (together with the Veritas Reporting Persons, the &quot;Reporting Persons&quot;) may be deemed to have been indirect beneficial owners of such reported Fund IV Shares, and Ramzi M. Musallam may be deemed to have been an indirectly bencial owner of such reported Fund III Shares.</footnote>
        <footnote id="F4">As a result of the Merger, the Fund III Shares and the Fund IV Shares were cancelled and converted into the right to receive $29.35 in cash per share of Common Stock of the Issuer, subject to applicable withholding.</footnote>
        <footnote id="F5">Each of the Reporting Persons disclaims beneficial ownership (as defined in Rule 16a-1(a)(2)) of the securities reported herein except to the extent of its pecuniary interest therein.</footnote>
    </footnotes>

    <remarks>In connection with the consummation of the Merger, Ramzi M. Musallam resigned as a director of the Issuer.</remarks>

    <ownerSignature>
        <signatureName>THE SI ORGANIZATION HOLDINGS LLC
By: The Veritas Capital Fund IV, L.P., acting as the Majority of Members
By: /s/ Ramzi M. Musallam
Name:  Ramzi M. Musallam
Title:  Authorized Signatory</signatureName>
        <signatureDate>2021-05-11</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>THE VERITAS CAPITAL FUND IV, L.P.
By: Veritas Capital Partners IV, L.L.C., its General Partner
By: /s/ Ramzi M. Musallam
Name:  Ramzi M. Musallam
Title:  Managing Partner</signatureName>
        <signatureDate>2021-05-11</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>VERITAS CAPITAL PARTNERS IV, L.L.C.
By: /s/ Ramzi M. Musallam
Name:  Ramzi M. Musallam
Title:  Managing Partner</signatureName>
        <signatureDate>2021-05-11</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Ramzi M. Musallam</signatureName>
        <signatureDate>2021-05-11</signatureDate>
    </ownerSignature>
</ownershipDocument>
