<SEC-DOCUMENT>0001104659-24-045328.txt : 20240409
<SEC-HEADER>0001104659-24-045328.hdr.sgml : 20240409
<ACCEPTANCE-DATETIME>20240409193352
ACCESSION NUMBER:		0001104659-24-045328
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20240405
FILED AS OF DATE:		20240409
DATE AS OF CHANGE:		20240409

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Westphal Jeffrey
		CENTRAL INDEX KEY:			0001818851
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39413
		FILM NUMBER:		24833920

	MAIL ADDRESS:	
		STREET 1:		C/O VERTEX, INC.
		STREET 2:		2301 RENAISSANCE BLVD.
		CITY:			KING OF PRUSSIA
		STATE:			PA
		ZIP:			19406

	FORMER NAME:	
		FORMER CONFORMED NAME:	Westphal Jeffery
		DATE OF NAME CHANGE:	20200721

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Vertex, Inc.
		CENTRAL INDEX KEY:			0001806837
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		ORGANIZATION NAME:           	06 Technology
		IRS NUMBER:				232081753
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2301 RENAISSANCE BOULEVARD
		CITY:			KING OF PRUSSIA
		STATE:			PA
		ZIP:			19406
		BUSINESS PHONE:		(800) 355-3500

	MAIL ADDRESS:	
		STREET 1:		2301 RENAISSANCE BOULEVARD
		CITY:			KING OF PRUSSIA
		STATE:			PA
		ZIP:			19406
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>tm2411393-1_4seq1.xml
<DESCRIPTION>OWNERSHIP DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2024-04-05</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001806837</issuerCik>
        <issuerName>Vertex, Inc.</issuerName>
        <issuerTradingSymbol>VERX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001818851</rptOwnerCik>
            <rptOwnerName>Westphal Jeffrey</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O VERTEX, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>2301 RENAISSANCE BLVD</rptOwnerStreet2>
            <rptOwnerCity>KING OF PRUSSIA</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>19406</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2024-04-05</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>791133</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>30.05</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1554641</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By The 2009 Jeffrey R. Westphal Generation Skipping Trust</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>7895</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>/s/ Joshua Levine, Attorney-in-Fact</signatureName>
        <signatureDate>2024-04-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
