<SEC-DOCUMENT>0001025835-20-000028.txt : 20200415
<SEC-HEADER>0001025835-20-000028.hdr.sgml : 20200415
<ACCEPTANCE-DATETIME>20200415150141
ACCESSION NUMBER:		0001025835-20-000028
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20200415
DATE AS OF CHANGE:		20200415
EFFECTIVENESS DATE:		20200415

FILER:

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

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-15373
		FILM NUMBER:		20793484

	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>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>efsc-2019defa14avirtualmtg.htm
<DESCRIPTION>DEFA14A
<TEXT>
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<div><a name="sCB0E9336F5975392B543F0F0ECB03F0B"></a></div><div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></div><div><br></div><div style="line-height:120%;text-align:center;font-size:12pt;"><font style="font-family:inherit;font-size:12pt;font-weight:bold;">UNITED STATES</font></div><div style="line-height:120%;text-align:center;font-size:12pt;"><font style="font-family:inherit;font-size:12pt;font-weight:bold;">SECURITIES AND EXCHANGE COMMISSION</font></div><div style="line-height:120%;text-align:center;font-size:12pt;"><font style="font-family:inherit;font-size:12pt;font-weight:bold;">Washington, D.C. 20549 </font></div><div style="line-height:120%;text-align:center;font-size:12pt;"><font style="font-family:inherit;font-size:12pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:12pt;"><font style="font-family:inherit;font-size:12pt;font-weight:bold;">SCHEDULE 14A</font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Proxy Statement Pursuant to Section 14(a) of the</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Securities Exchange Act of 1934 (Amendment No. )&#160;</font></div><div style="line-height:120%;text-align:left;font-size:9pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:61.1328125%;border-collapse:collapse;text-align:left;"><tr><td colspan="2"></td></tr><tr><td style="width:59%;"></td><td style="width:41%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Filed by the Registrant</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">[X]</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Filed by a Party other than the Registrant</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">[&#160;&#160; ]&#160;</font></div></td></tr></table></div></div><div style="line-height:120%;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:572px;border-collapse:collapse;text-align:left;"><tr><td colspan="2"></td></tr><tr><td style="width:32px;"></td><td style="width:540px;"></td></tr><tr><td colspan="2" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Check the appropriate box:</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">[&#160;&#160; ]</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Preliminary Proxy Statement</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">[&#160;&#160; ]</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Confidential, For Use of the Commission Only (as permitted by Rule 14a-6(e)(2))</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">[&#160;&#160; ]</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Definitive Proxy Statement</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">[X]</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Definitive Additional Materials</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">[&#160;&#160; ]&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Soliciting Material Under Rule 14a-12</font></div></td></tr></table></div></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:12pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:100%;border-collapse:collapse;text-align:left;"><tr><td colspan="2"></td></tr><tr><td style="width:5%;"></td><td style="width:95%;"></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:12pt;"><font style="font-family:inherit;font-size:12pt;font-weight:bold;">ENTERPRISE FINANCIAL SERVICES CORP</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(Name of Registrant as Specified In Its Charter)</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;&#160;&#160;</font></div></td></tr><tr><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:center;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">(Name of Person(s) Filing Proxy Statement, if Other Than the Registrant)</font></div></td></tr></table></div></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><div style="padding-left:0px;text-indent:0px;line-height:normal;padding-top:10px;"><table cellpadding="0" cellspacing="0" style="font-family:Times New Roman;font-size:10pt;width:94.921875%;border-collapse:collapse;text-align:left;"><tr><td colspan="5"></td></tr><tr><td style="width:5%;"></td><td style="width:4%;"></td><td style="width:1%;"></td><td style="width:45%;"></td><td style="width:45%;"></td></tr><tr><td colspan="4" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Payment of Filing Fee (Check the appropriate box):</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">[X]</font></div></td><td colspan="3" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">No fee required.</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">[&#160;&#160; ]</font></div></td><td colspan="3" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Fee computed on table below per Exchange Act Rules 14a-6(i)(4) and 0-11.</font></div></td><td style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="overflow:hidden;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#160;</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">1</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:top;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Title of each class of securities to which transaction applies:</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">2</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:top;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Aggregate number of securities to which transaction applies:</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">3</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:top;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Per unit price or other underlying value of transaction computed pursuant to Exchange Act Rule 0-11 (set forth the amount on which the filing fee is calculated and state how it was determined):</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">4</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:top;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Proposed maximum aggregate value of transaction:</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">5</font></div></td><td style="vertical-align:bottom;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></td><td colspan="2" style="vertical-align:top;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Total fee paid:</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">[&#160;&#160; ]</font></div></td><td colspan="4" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Fee paid previously with preliminary materials:</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:right;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">[&#160;&#160; ]</font></div></td><td colspan="4" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Check box if any part of the fee is offset as provided by Exchange Act Rule 0-11(a)(2) and identify the filing for which the offsetting fee was paid previously. Identify the previous filing by registration statement number, or the form or schedule and the date of its filing.</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">1</font></div></td><td colspan="2" style="vertical-align:top;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Amount previously paid:</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">2</font></div></td><td colspan="2" style="vertical-align:top;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Form, Schedule or Registration Statement No.:</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">3</font></div></td><td colspan="2" style="vertical-align:top;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Filing Party:</font></div></td></tr><tr><td style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">&#160;</font></div></td><td colspan="2" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">4</font></div></td><td colspan="2" style="vertical-align:top;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;"><div style="text-align:left;font-size:9pt;"><font style="font-family:inherit;font-size:9pt;">Date Filed:</font></div></td></tr></table></div></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><br></div><div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></div><hr style="page-break-after:always"><div><a name="s1FD78357D64B593E86B8D0A245ED8670"></a></div><div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></div><div><br></div><div style="line-height:120%;text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:174%;text-align:center;font-size:18pt;"><font style="font-family:inherit;font-size:18pt;font-weight:bold;">ENTERPRISE FINANCIAL SERVICES CORP</font></div><div style="line-height:174%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:174%;text-align:center;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">150 NORTH MERAMEC AVE</font></div><div style="line-height:174%;text-align:center;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">CLAYTON, MISSOURI 63105</font></div><div style="line-height:174%;text-align:center;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;"><br></font></div><div style="line-height:120%;"><hr></div><div style="line-height:174%;text-align:center;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-weight:bold;">IMPORTANT NOTICE:</font></div><div style="line-height:174%;text-align:center;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-weight:bold;">ADDITIONAL INFORMATION REGARDING THE 2020 ANNUAL MEETING OF SHAREHOLDERS</font></div><div style="line-height:174%;text-align:center;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-weight:bold;">TO BE HELD ON WEDNESDAY, MAY 6, 2020</font></div><div style="line-height:120%;"><hr></div><div style="line-height:174%;text-align:center;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;"><br></font></div><div style="line-height:120%;padding-bottom:10px;text-align:justify;text-indent:48px;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">The following Notice of Change in Location of Annual Meeting of Shareholders (the &#8220;Notice&#8221;) amends the original notice included in the Proxy Statement (the &#8220;Proxy Statement&#8221;) of Enterprise Financial Services Corp (&#8220;EFSC&#8221; or the &#8220;Company&#8221;), dated March 25, 2020, furnished to EFSC shareholders in connection with the solicitation of proxies by EFSC&#8217;s Board of Directors for use at the Annual Meeting of Shareholders to be held on Wednesday, May 6, 2020 (the &#8220;Annual Meeting&#8221;). The purpose of the Notice is to announce a change in the location of the Annual Meeting to a virtual meeting format only, via webcast. </font></div><div style="line-height:120%;padding-bottom:10px;text-align:justify;text-indent:48px;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">The Notice is being filed with the Securities and Exchange Commission and is being made available to shareholders on or about April 15, 2020. </font></div><div style="line-height:120%;padding-bottom:10px;text-align:center;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-weight:bold;">THIS NOTICE SHOULD BE READ IN CONJUNCTION WITH THE PROXY STATEMENT</font></div><div style="line-height:120%;padding-bottom:10px;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><br></div><div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></div><hr style="page-break-after:always"><div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></div><div><br></div><div style="line-height:120%;padding-bottom:10px;text-align:center;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-weight:bold;">NOTICE OF CHANGE IN LOCATION OF ANNUAL MEETING OF SHAREHOLDERS</font></div><div style="line-height:120%;padding-bottom:10px;text-align:left;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;"><br></font></div><div style="line-height:120%;padding-bottom:10px;text-align:justify;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-weight:bold;">To the Shareholders of Enterprise Financial Services Corp: </font></div><div style="line-height:120%;padding-bottom:10px;text-align:justify;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">Due to the public health and safety concerns related to the COVID-19 pandemic and to support the health and well-being of our shareholders, employees, and communities, NOTICE IS HEREBY GIVEN that the location of the 2020 Annual Meeting of Shareholders (the &#8220;Annual Meeting&#8221;) of Enterprise Financial Services Corp (&#8220;EFSC&#8221;) has been changed. </font></div><div style="line-height:120%;padding-bottom:10px;text-align:justify;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">As previously announced, the Annual Meeting will be held on Wednesday, May 6, 2020 at 5:00 pm, Central Daylight Time. The Annual Meeting will be held in a virtual meeting format only, via webcast at www.virtualshareholdermeeting.com/EFSC2020. You will not be able to attend the Annual Meeting physically in person. While we are not certain of the impact or longevity of COVID-19, we currently expect to resume in-person annual meetings beginning with our 2021 annual meeting of shareholders. </font></div><div style="line-height:120%;padding-bottom:10px;text-align:justify;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-weight:bold;">Additional Information </font></div><div style="line-height:120%;padding-bottom:10px;text-align:justify;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">As described in the proxy materials for the Annual Meeting previously distributed, you are entitled to participate in the Annual Meeting if you were a shareholder of record at the close of business on March 12, 2020, the record date. Whether or not you plan to attend the virtual Annual Meeting, we strongly urge you to vote in advance of the Annual Meeting by one of the methods described in the proxy materials previously distributed. Please review our proxy materials prior to voting. The proxy card included with the proxy materials previously distributed will not be updated to reflect the change in location and format and may continue to be used to vote your shares in connection with the Annual Meeting. If you have already voted, we thank you for taking the time to exercise your right to make your voice heard.</font></div><div style="line-height:120%;padding-bottom:10px;text-align:justify;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-weight:bold;">Additional Information About the Virtual Annual Meeting </font></div><div style="line-height:120%;padding-bottom:10px;text-align:justify;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-style:italic;font-weight:bold;">Attendance and Participation </font></div><div style="line-height:120%;padding-bottom:10px;text-align:justify;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">Our virtual Annual Meeting will be conducted on the internet via webcast. You will be able to participate online by visiting www.virtualshareholdermeeting.com/EFSC2020. Shareholders will be able to vote their shares electronically during the Annual Meeting. </font></div><div style="line-height:120%;padding-bottom:10px;text-align:justify;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">To participate in the Annual Meeting, you will need the 16-digit control number included on your proxy card, voting instruction form or notice of internet availability. The Annual Meeting will begin promptly at 5:00 pm, Central Daylight Time. We encourage you to access the Annual Meeting prior to the start time. The virtual Annual Meeting platform is fully supported across browsers (Internet Explorer, Firefox, Chrome, and Safari) and devices (desktops, laptops, tablets, and cell phones) running the most updated version of applicable software and plugins. The platform includes functionality that affords shareholders the same meeting participation rights and opportunities they would have at an in-person meeting. Participants should allow plenty of time to log in and ensure that they can hear streaming audio prior to the start of the Annual Meeting. </font></div><div style="line-height:120%;padding-bottom:10px;text-align:justify;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-style:italic;font-weight:bold;">Shareholder List </font></div><div style="line-height:120%;padding-bottom:10px;text-align:justify;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;">The list of our shareholders of record will be available for viewing by shareholders during the Annual Meeting for any purpose germane to the meeting at www.virtualshareholdermeeting.com/EFSC2020.</font></div><div style="line-height:120%;padding-bottom:10px;text-align:center;font-size:11pt;"><font style="font-family:inherit;font-size:11pt;font-weight:bold;">Our Proxy Statement and 2019 Annual Report are available online at www.proxyvote.com and on our investor relations page on our website at www.enterprisebank.com.</font></div><div style="line-height:120%;padding-bottom:10px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div><br></div><div><div style="line-height:120%;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></div>	</div></body>
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