<SEC-DOCUMENT>0001127602-25-008491.txt : 20250306
<SEC-HEADER>0001127602-25-008491.hdr.sgml : 20250306
<ACCEPTANCE-DATETIME>20250306110300
ACCESSION NUMBER:		0001127602-25-008491
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250304
FILED AS OF DATE:		20250306
DATE AS OF CHANGE:		20250306

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KEENE S TURNER
		CENTRAL INDEX KEY:			0001482570
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-15373
		FILM NUMBER:		25714086

	BUSINESS ADDRESS:	
		STREET 1:		P O BOX 547
		CITY:			BOYERTOWN
		STATE:			PA
		ZIP:			19512
		BUSINESS PHONE:		610-369-6293

	MAIL ADDRESS:	
		STREET 1:		P O BOX 547
		CITY:			BOYERTOWN
		STATE:			PA
		ZIP:			19512

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ENTERPRISE FINANCIAL SERVICES CORP
		CENTRAL INDEX KEY:			0001025835
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		ORGANIZATION NAME:           	02 Finance
		IRS NUMBER:				431706259
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		150 NORTH MERAMEC
		STREET 2:		150 NORTH MERAMEC
		CITY:			CLAYTON
		STATE:			MO
		ZIP:			63105
		BUSINESS PHONE:		3147255500

	MAIL ADDRESS:	
		STREET 1:		150 NORTH MERAMEC
		STREET 2:		150 NORTH MERAMEC
		CITY:			CLAYTON
		STATE:			MO
		ZIP:			63105

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ENTERBANK HOLDINGS INC
		DATE OF NAME CHANGE:	19961024
</SEC-HEADER>
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<DESCRIPTION>PRIMARY DOCUMENT
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    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-03-04</periodOfReport>

    <issuer>
        <issuerCik>0001025835</issuerCik>
        <issuerName>ENTERPRISE FINANCIAL SERVICES CORP</issuerName>
        <issuerTradingSymbol>EFSC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001482570</rptOwnerCik>
            <rptOwnerName>KEENE S TURNER</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>150 N. MERAMEC</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>CLAYTON</rptOwnerCity>
            <rptOwnerState>MO</rptOwnerState>
            <rptOwnerZipCode>63105</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isOfficer>1</isOfficer>
            <officerTitle>SEVP, Chief Financial Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

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                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
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                    <value>56726</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
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            <ownershipNature>
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                <natureOfOwnership>
                    <value>401(k) Plan</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
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            <exerciseDate>
                <value>2024-02-06</value>
            </exerciseDate>
            <expirationDate>
                <value>2031-02-25</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
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            <expirationDate>
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            </expirationDate>
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            <expirationDate>
                <value>2034-02-28</value>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
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            </underlyingSecurity>
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                    <value>15163</value>
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            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
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        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
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                <underlyingSecurityShares>
                    <value>1964</value>
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            </underlyingSecurity>
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                <underlyingSecurityTitle>
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                </underlyingSecurityTitle>
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                    <value>2897</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
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        <derivativeHolding>
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            <expirationDate>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
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                </underlyingSecurityTitle>
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            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
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            <conversionOrExercisePrice>
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                <value>2025-03-04</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2670</value>
                </transactionShares>
                <transactionPricePerShare>
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                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
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                </transactionAcquiredDisposedCode>
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                <value>2025-03-04</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>7984</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
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            <exerciseDate>
                <footnoteId id="F11"/>
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                <value>2035-03-04</value>
            </expirationDate>
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    </derivativeTable>

    <footnotes>
        <footnote id="F1">These securities are represented by units held in a unitized stock fund through the Company's 401(k) Plan. The unitized stock fund consists of cash and common stock in amounts that vary from time to time.</footnote>
        <footnote id="F2">Each Depositary Share represents a 1/40th interest in a share of the Issuer's 5.00% Series A Fixed-Rate Non-Cumulative Perpetual Preferred Stock. Depositary Shares were purchased in an underwritten public offering.</footnote>
        <footnote id="F3">This option becomes exercisable in the first quarter of 2025, subject to continued employment by the reporting person.</footnote>
        <footnote id="F4">This option becomes exercisable in the first quarter of 2026, subject to continued employment by the reporting person.</footnote>
        <footnote id="F5">This option becomes exercisable in the first quarter of 2027, subject to continued employment by the reporting person.</footnote>
        <footnote id="F6">The RSU's were granted pursuant to the Company's 2018 Stock Incentive Plan. Each RSU represents the right to receive one share of Common Stock, subject to adjustment as provided in the Grant Agreement.</footnote>
        <footnote id="F7">The RSU vest 100% in the first quarter of 2026, subject to continued employment by the reporting person.</footnote>
        <footnote id="F8">The RSU's vest 100% in the first quarter of 2027, subject to continued employment by the reporting person.</footnote>
        <footnote id="F9">The RSUs vest over six years in one-third installments on each of February 24, 2024, February 24, 2026, and February 24, 2028. Vesting is subject to continued employment of the reporting person. On each vesting date, for each RSU vesting on such date, the reporting person will receive one share of Common Stock.</footnote>
        <footnote id="F10">The RSU's vest 100% in the first quarter of 2028, subject to continued employment by the reporting person.</footnote>
        <footnote id="F11">The option becomes exercisable in the first quarter of 2028, subject to continued employment by the reporting person.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Keene S. Turner</signatureName>
        <signatureDate>2025-03-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
