<SEC-DOCUMENT>0001289134-25-000006.txt : 20250916
<SEC-HEADER>0001289134-25-000006.hdr.sgml : 20250916
<ACCEPTANCE-DATETIME>20250916160343
ACCESSION NUMBER:		0001289134-25-000006
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250912
FILED AS OF DATE:		20250916
DATE AS OF CHANGE:		20250916

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Rendino Kevin
		CENTRAL INDEX KEY:			0001289134
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40574
		FILM NUMBER:		251317317

	MAIL ADDRESS:	
		STREET 1:		7 NORTH WILLOW STREET
		STREET 2:		SUITE 4B
		CITY:			MONTCLAIR
		STATE:			NJ
		ZIP:			07042

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SYNCHRONOSS TECHNOLOGIES INC
		CENTRAL INDEX KEY:			0001131554
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROGRAMMING SERVICES [7371]
		ORGANIZATION NAME:           	06 Technology
		EIN:				061594540
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		200 CROSSING BOULEVARD
		STREET 2:		8TH FLOOR
		CITY:			BRIDGEWATER
		STATE:			NJ
		BUSINESS PHONE:		866-620-3940

	MAIL ADDRESS:	
		STREET 1:		200 CROSSING BOULEVARD
		STREET 2:		8TH FLOOR
		CITY:			BRIDGEWATER
		STATE:			NJ
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wk-form4_1758053020.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-09-12</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001131554</issuerCik>
        <issuerName>SYNCHRONOSS TECHNOLOGIES INC</issuerName>
        <issuerTradingSymbol>SNCR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001289134</rptOwnerCik>
            <rptOwnerName>Rendino Kevin</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>7 NORTH WILLOW STREET</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 4B</rptOwnerStreet2>
            <rptOwnerCity>MONTCLAIR</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07042</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $0.0001 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2025-09-12</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>888892</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">On September 12, 2025, 180 Degree Capital Corp. (&quot;180 Degree Capital&quot;) merged with Mount Logan Capital Inc. (&quot;Mount Logan&quot;) (the &quot;Merger&quot;).  With the close of the Merger, the Reporting Person ceased to have voting and/or dispositive control of the shares of the Issuer owned by 180 Degree Capital and therefore ceased to have indirect beneficial ownership of such shares of the Issuer.  No shares of the Issuer were sold in conjunction with or pursuant to the Merger.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Daniel B. Wolfe by Power of Attorney</signatureName>
        <signatureDate>2025-09-16</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
