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

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-08-26</periodOfReport>

    <issuer>
        <issuerCik>0001556739</issuerCik>
        <issuerName>Thryv Holdings, Inc.</issuerName>
        <issuerTradingSymbol>THRY</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001655183</rptOwnerCik>
            <rptOwnerName>Mudrick Capital Management, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>527 MADISON AVENUE, 6TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>true</isDirector>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001367262</rptOwnerCik>
            <rptOwnerName>Mudrick Jason</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MUDRICK CAPITAL MANAGEMENT, L.P.</rptOwnerStreet1>
            <rptOwnerStreet2>527 MADISON AVENUE, 6TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>true</isDirector>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001813628</rptOwnerCik>
            <rptOwnerName>Mudrick Distressed Opportunity Fund Global, LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>527 MADISON AVENUE, 6TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>true</isDirector>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001826215</rptOwnerCik>
            <rptOwnerName>Verto Direct Opportunity II, LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MUDRICK CAPITAL MANAGEMENT, L.P.</rptOwnerStreet1>
            <rptOwnerStreet2>527 MADISON AVENUE, 6TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10022</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>true</isDirector>
            <isTenPercentOwner>true</isTenPercentOwner>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-08-26</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>307265</value>
                    <footnoteId id="F3"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>30</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>11997846</value>
                    <footnoteId id="F4"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See notes</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">This Form 4 is filed by the following Reporting Persons: Mudrick Capital Management, L.P. (&quot;MCM&quot;), Jason Mudrick, Mudrick Distressed Opportunity Fund Global, LP, and Verto Direct Opportunity II, LP.</footnote>
        <footnote id="F2">Mr. Mudrick is the sole member of Mudrick Capital Management, LLC, which is the general partner of MCM. MCM is the investment manager of the following entities: Mudrick Distressed Opportunity Fund Global, LP; Mudrick Distressed Opportunity Drawdown Fund II, LP; Verto Direct Opportunity II, LP; Boston Patriot Batterymarch St LLC; Blackwell Partners LLC Series A; and P Mudrick LTD. Mr. Mudrick is the managing member of Verto Direct Opportunity GP, LLC, which is the general partner of Verto Direct Opportunity II, LP. Each Reporting Person and each of the aforementioned entities disclaims beneficial ownership of any equity securities of the Issuer except to the extent of such person's or entity's pecuniary interest therein, if any.</footnote>
        <footnote id="F3">Represents shares of Common Stock sold by the following entities: 91,691 by Mudrick Distressed Opportunity Fund Global, L.P.; 35,854 by Blackwell Partners LLC Series A; 8,948 by P Mudrick Ltd.; 41,509 by Mudrick Distressed Opportunity Drawdown Fund II, L.P.; 79,065 by Verto Direct Opportunity II, LP; 47,269 by Boston Patriot Batterymarch St LLC; and 2,929 by Verto Direct Opportunity GP, LLC (through Jason Mudrick to whom these shares were distributed in connection with the sale).</footnote>
        <footnote id="F4">Represents shares of Common Stock held by the following entities following the sale: 1,400,019 by Blackwell Partners LLC Series A; 1,845,708 by Boston Patriot Batterymarch St LLC; 1,620,815 by Mudrick Distressed Opportunity Drawdown Fund II, LP; 3,580,279 by Mudrick Distressed Opportunity Fund Global, LP; 349,384 by P Mudrick LTD; 114,377 by Verto Direct Opportunity GP, LLC; and 3,087,264 by Verto Direct Opportunity II, LP.</footnote>
    </footnotes>

    <remarks>Exhibit 99.1 (Joint Filer Information) is incorporated herein by reference.</remarks>

    <ownerSignature>
        <signatureName>See Signatures Included in Exhibit 99.1</signatureName>
        <signatureDate>2021-08-30</signatureDate>
    </ownerSignature>
</ownershipDocument>
