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

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2019-06-29</periodOfReport>

    <notSubjectToSection16>true</notSubjectToSection16>

    <issuer>
        <issuerCik>0001039101</issuerCik>
        <issuerName>L3 TECHNOLOGIES, INC.</issuerName>
        <issuerTradingSymbol>LLL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001186913</rptOwnerCik>
            <rptOwnerName>CORCORAN THOMAS A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O L3 TECHNOLOGIES, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>600 THIRD AVENUE</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10016</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>true</isDirector>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2019-06-29</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>D</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>18892</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">On June 29, 2019, pursuant to an Agreement and Plan of Merger (the &quot;Merger Agreement&quot;), L3 Technologies, Inc. (&quot;L3&quot;) and Harris Corporation (&quot;Harris&quot;) effected an all-stock, merger of equals to combine their respective businesses in which a wholly-owned subsidiary of Harris merged with and into L3 with L3 surviving as a wholly-owned subsidiary of Harris (the &quot;Merger&quot;).  Pursuant to the Merger Agreement, upon completion of the Merger, Harris changed its name to &quot;L3Harris Technologies, Inc.&quot; (&quot;L3Harris&quot;), each outstanding share of L3 common stock was converted into the right to receive 1.30 shares of L3Harris common stock (the &quot;exchange ratio&quot;) and any vesting conditions of each unvested deferred stock unit and restricted stock unit (collectively, &quot;RSUs&quot;) were deemed satisfied and accelerated in full and each RSU was cancelled and entitled the holder to receive a number of shares of L3Harris common stock equal to the number of such RSUs multiplied by the exchange ratio.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Allen E. Danzig as Attorney-in-Fact</signatureName>
        <signatureDate>2019-07-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
