<SEC-DOCUMENT>0000018349-22-000026.txt : 20220209
<SEC-HEADER>0000018349-22-000026.hdr.sgml : 20220209
<ACCEPTANCE-DATETIME>20220209164952
ACCESSION NUMBER:		0000018349-22-000026
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20220207
FILED AS OF DATE:		20220209
DATE AS OF CHANGE:		20220209

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Wolverton Elizabeth D.
		CENTRAL INDEX KEY:			0001729435

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10312
		FILM NUMBER:		22607900

	MAIL ADDRESS:	
		STREET 1:		1111 BAY AVENUE
		STREET 2:		SUITE 500
		CITY:			COLUMBUS
		STATE:			GA
		ZIP:			31901

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SYNOVUS FINANCIAL CORP
		CENTRAL INDEX KEY:			0000018349
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		IRS NUMBER:				581134883
		STATE OF INCORPORATION:			GA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1111 BAY AVENUE
		STREET 2:		STE 500
		CITY:			COLUMBUS
		STATE:			GA
		ZIP:			31901
		BUSINESS PHONE:		7066492311

	MAIL ADDRESS:	
		STREET 1:		1111 BAY AVENUE
		STREET 2:		STE 500
		CITY:			COLUMBUS
		STATE:			GA
		ZIP:			31901

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CB&T BANCSHARES INC
		DATE OF NAME CHANGE:	19890912
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wf-form4_164444337635877.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2022-02-07</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000018349</issuerCik>
        <issuerName>SYNOVUS FINANCIAL CORP</issuerName>
        <issuerTradingSymbol>SNV</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001729435</rptOwnerCik>
            <rptOwnerName>Wolverton Elizabeth D.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>P.O. BOX 120</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>COLUMBUS</rptOwnerCity>
            <rptOwnerState>GA</rptOwnerState>
            <rptOwnerZipCode>31902</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>EVP, Head Con. Bank. Brand Exp</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2022-02-07</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>299</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>51.07</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>28034</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2022-02-07</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>D</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>3608</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>24426</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2022-02-07</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>512</value>
                    <footnoteId id="F3"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>51.07</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>23914</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">On February 7, 2019, the reporting person received a grant of market restricted with a service-based component as well as a Total Shareholder Return Multiplier (the &quot;2019 MRSUs&quot;). These 2019 MRSUs were included on the Form 3 filed on February 1, 2022 by the reporting person (the &quot;Form 3&quot;). On February 7, 2022, pursuant to the terms of the service-based vesting component of the 2019 MRSUs, the third tranche of such award vested. Based upon the Total Shareholder Return Multiplier, the reporting person received 179 additional shares of the Company's restricted stock, such shares representing the amount vested in excess of the target amount of 2019 MRSUs initially included on the Form 3. In addition, the reporting person received 120 shares of the Company's restricted stock through the accrual of dividend equivalents.</footnote>
        <footnote id="F2">On February 7, 2019, the reporting person received a grant of performance stock units (the &quot;PSUs&quot;) with a service-based vesting component as well as a performance vesting requirement. These PSUs were included on the Form 3. While the reporting person has satisfied the service-based vesting requirement, the actual amount of PSUs which vested on February 7, 2022 was 0% of the target amount based upon the results of two performance measures during the performance period compared to the performance formula approved by the Compensation and Human Capital Committee of Synovus' Board of Directors. As such, the reporting person received 3,608 less shares (which includes the award plus dividend equivalent rights on those underlying shares) than initially included on the Form 3.</footnote>
        <footnote id="F3">These shares were withheld upon the vesting of 2019 MRSUs to pay tax withholding obligations.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Mary Maurice Young</signatureName>
        <signatureDate>2022-02-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
