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<ownershipDocument>

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    <documentType>4</documentType>

    <periodOfReport>2016-06-09-04:00</periodOfReport>

    <notSubjectToSection16>false</notSubjectToSection16>

    <issuer>
        <issuerCik>0001391127</issuerCik>
        <issuerName>Limelight Networks, Inc.</issuerName>
        <issuerTradingSymbol>LLNW</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000886982</rptOwnerCik>
            <rptOwnerName>GOLDMAN SACHS GROUP INC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 WEST STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10282</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000769993</rptOwnerCik>
            <rptOwnerName>GOLDMAN SACHS &amp; CO</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 WEST STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10282</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001359609</rptOwnerCik>
            <rptOwnerName>GSCP V ADVISORS, L.L.C.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 WEST STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10282</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001359610</rptOwnerCik>
            <rptOwnerName>GSCP V OFFSHORE ADVISORS, L.L.C.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 WEST STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10282</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001359614</rptOwnerCik>
            <rptOwnerName>GS ADVISORS V, L.L.C.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 WEST STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10282</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001359613</rptOwnerCik>
            <rptOwnerName>GS CAPITAL PARTNERS V FUND, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 WEST STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10282</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001359612</rptOwnerCik>
            <rptOwnerName>GS CAPITAL PARTNERS V OFFSHORE FUND, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 WEST STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10282</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001359670</rptOwnerCik>
            <rptOwnerName>GS CAPITAL PARTNERS V GMBH &amp; CO. KG</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 WEST STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10282</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001322225</rptOwnerCik>
            <rptOwnerName>GS CAPITAL PARTNERS V INSTITUTIONAL, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 WEST STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10282</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001232073</rptOwnerCik>
            <rptOwnerName>GOLDMAN, SACHS MANAGEMENT GP GMBH</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>200 WEST STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10282</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>true</isTenPercentOwner>
            <isOther>false</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2016-06-09-04:00</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>87256</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>30551503</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnotes</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                    <footnoteId id="F5"/>
                    <footnoteId id="F6"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Non-qualified stock options (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>4.1</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F7"/>
            </exerciseDate>
            <expirationDate>
                <value>2024-06-05-04:00</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>26271</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>26271</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnotes</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F7"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">This statement is being filed by The Goldman Sachs Group, Inc. (&quot;GS Group&quot;), Goldman, Sachs &amp; Co. (&quot;Goldman Sachs&quot;), GSCP V Advisors, L.L.C. (&quot;GSCP Advisors&quot;), GSCP V Offshore Advisors, L.L.C. (&quot;GSCP Offshore Advisors&quot;), GS Advisors V, L.L.C. (&quot;GS Advisors&quot;), Goldman, Sachs Management GP GmbH (&quot;GS GmbH&quot;), GS Capital Partners V Fund, L.P. (&quot;GS Capital&quot;), GS Capital Partners V Offshore Fund, L.P. (&quot;GS Offshore&quot;), GS Capital Partners V GmbH &amp; Co. KG (&quot;GS Germany&quot;), GS Capital Partners V Institutional, L.P. (&quot;GS Institutional&quot; and, together with GS Capital, GS Offshore and GS Germany, the &quot;Funds&quot;) (GS Group, Goldman Sachs, GSCP Advisors, GSCP Offshore Advisors, GS Advisors, GS GmbH and the Funds, collectively, the &quot;Reporting Persons&quot;).</footnote>
        <footnote id="F2">The 87,256 shares of common stock, par value $0.001 per share (the &quot;Common Stock&quot;), were granted pursuant to Limelight Network, Inc.'s (the &quot;Company&quot;) Amended and Restated 2007 Equity Incentive Plan (the &quot;Plan&quot;), consisting of 87,256 restricted stock units granted to Mark J. Midle, a vice president of Goldman Sachs, in his capacity as a director of the Company. The grant of 87,256 restricted stock units, if eligible, shall become fully vested and exercisable on the day prior to the Company's 2017 annual shareholder meeting (but in no event later than December 31, 2017), subject to continued board service through such date. Each restricted stock unit represents a contingent right to receive one share of the Company's Common Stock. Mr. Midle has an understanding with GS Group pursuant to which such shares are held for the benefit of GS Group.</footnote>
        <footnote id="F3">GS Group may be deemed to beneficially own, in the aggregate, 278,110 shares of Common Stock that were granted pursuant to the Plan, consisting of 103,246 restricted stock units granted to Mr. Midle, 102,879 restricted stock units that were granted to Joseph H. Gleberman, a former advisory director of Goldman Sachs, and 71,985 restricted stock units that were granted to Peter J. Perrone, a former managing director of Goldman Sachs, each in their capacity as directors of the Company. Each restricted stock unit represents a contingent right to receive one share of the Company's Common Stock.  Mr. Midle has an understanding with GS Group pursuant to which such shares are held for the benefit of GS Group.</footnote>
        <footnote id="F5">Goldman Sachs beneficially owns directly and GS Group may be deemed to beneficially own indirectly 900 shares of the Company's Common Stock. GS Group and Goldman Sachs may be deemed to beneficially own indirectly, in the aggregate, 30,272,493 shares of the Company's Common Stock by reason of the direct ownership of Common Stock by the Funds. Goldman Sachs also holds open short positions of 1,440 shares of Common Stock. Affiliates of Goldman Sachs and GS Group are the general partner, managing general partner or managing partner of the Funds. Goldman Sachs is the investment manager of certain of the Funds. Goldman Sachs is a wholly-owned subsidiary of GS Group. GS Group and Goldman Sachs each disclaims beneficial ownership of the shares of Common Stock owned by the Funds except to the extent of its pecuniary interest therein.</footnote>
        <footnote id="F6">GS Capital beneficially owns directly and its general partner, GSCP Advisors, may be deemed to beneficially own indirectly 15,940,283 shares of Common Stock. GSCP Offshore beneficially owns directly and its general partner, GSCP Offshore Advisors, may be deemed to beneficially own indirectly 8,234,087 shares of Common Stock. GS Institutional beneficially owns directly and its general partner, GS Advisors, may be deemed to beneficially own indirectly 5,466,153 shares of Common Stock. GS Germany beneficially owns directly and its general partner, GS GmbH, may be deemed to beneficially own indirectly 631,970 shares of Common Stock.</footnote>
        <footnote id="F7">The options to purchase 26,271 shares of Common Stock were granted to Mr. Midle in his capacity as a director of the Company pursuant to the Plan. The grant of 26,271 options is fully vested and exercisable. Mr. Midle has an understanding with GS Group pursuant to which he holds such options for the benefit of GS Group.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Kevin P. Treanor, Attorney-in-fact</signatureName>
        <signatureDate>2016-06-13-04:00</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Kevin P. Treanor, Attorney-in-fact</signatureName>
        <signatureDate>2016-06-13-04:00</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Kevin P. Treanor, Attorney-in-fact</signatureName>
        <signatureDate>2016-06-13-04:00</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Kevin P. Treanor, Attorney-in-fact</signatureName>
        <signatureDate>2016-06-13-04:00</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Kevin P. Treanor, Attorney-in-fact</signatureName>
        <signatureDate>2016-06-13-04:00</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Kevin P. Treanor, Attorney-in-fact</signatureName>
        <signatureDate>2016-06-13-04:00</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Kevin P. Treanor, Attorney-in-fact</signatureName>
        <signatureDate>2016-06-13-04:00</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Kevin P. Treanor, Attorney-in-fact</signatureName>
        <signatureDate>2016-06-13-04:00</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Kevin P. Treanor, Attorney-in-fact</signatureName>
        <signatureDate>2016-06-13-04:00</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Kevin P. Treanor, Attorney-in-fact</signatureName>
        <signatureDate>2016-06-13-04:00</signatureDate>
    </ownerSignature>
</ownershipDocument>
