<SEC-DOCUMENT>0001115055-24-000101.txt : 20240329
<SEC-HEADER>0001115055-24-000101.hdr.sgml : 20240329
<ACCEPTANCE-DATETIME>20240329124432
ACCESSION NUMBER:		0001115055-24-000101
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20240312
FILED AS OF DATE:		20240329
DATE AS OF CHANGE:		20240329

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			CALLICUTT RICHARD D II
		CENTRAL INDEX KEY:			0001231143
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39309
		FILM NUMBER:		24803027

	MAIL ADDRESS:	
		STREET 1:		3980 PREMIER DRIVE
		STREET 2:		SUITE 210
		CITY:			HIGH POINT
		STATE:			NC
		ZIP:			27265

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PINNACLE FINANCIAL PARTNERS INC
		CENTRAL INDEX KEY:			0001115055
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		ORGANIZATION NAME:           	02 Finance
		IRS NUMBER:				621812853
		STATE OF INCORPORATION:			TN
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		150 THIRD AVENUE SOUTH
		STREET 2:		SUITE 900
		CITY:			NASHVILLE
		STATE:			TN
		ZIP:			37201
		BUSINESS PHONE:		6157443700

	MAIL ADDRESS:	
		STREET 1:		150 THIRD AVENUE SOUTH
		STREET 2:		SUITE 900
		CITY:			NASHVILLE
		STATE:			TN
		ZIP:			37201
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>wk-form4a_1711730659.xml
<DESCRIPTION>FORM 4/A
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2024-03-12</periodOfReport>

    <dateOfOriginalSubmission>2024-03-14</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001115055</issuerCik>
        <issuerName>PINNACLE FINANCIAL PARTNERS INC</issuerName>
        <issuerTradingSymbol>PNFP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001231143</rptOwnerCik>
            <rptOwnerName>CALLICUTT RICHARD D II</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>150 THIRD AVENUE SOUTH</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 900</rptOwnerStreet2>
            <rptOwnerCity>NASHVILLE</rptOwnerCity>
            <rptOwnerState>TN</rptOwnerState>
            <rptOwnerZipCode>37201</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chairman-Carolinas &amp; Virginia</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>PNFP Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2024-03-12</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>11030</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>82.22</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>97226</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">On March 14, 2024, the reporting person filed a Form 4 which inadvertently utilized an incorrect transaction code associated with the retention by Pinnacle Financial Partners, Inc. of shares of common stock to cover withholding taxes due upon the vesting of performance units and the issuance of common shares in settlement of those units to the reporting person.  The appropriate transaction code should have been 'F' rather than 'S'.</footnote>
        <footnote id="F2">Represents shares retained by the Company to cover withholding taxes due upon the vesting of the performance units and issuance of the common shares described in footnote 1.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Richard D. Callicut, II</signatureName>
        <signatureDate>2024-03-29</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
