<SEC-DOCUMENT>0000807863-18-000014.txt : 20180227
<SEC-HEADER>0000807863-18-000014.hdr.sgml : 20180227
<ACCEPTANCE-DATETIME>20180227170613
ACCESSION NUMBER:		0000807863-18-000014
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20180227
DATE AS OF CHANGE:		20180227
EFFECTIVENESS DATE:		20180227

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MITEK SYSTEMS INC
		CENTRAL INDEX KEY:			0000807863
		STANDARD INDUSTRIAL CLASSIFICATION:	COMPUTER PERIPHERAL EQUIPMENT, NEC [3577]
		IRS NUMBER:				870418827
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0930

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35231
		FILM NUMBER:		18646207

	BUSINESS ADDRESS:	
		STREET 1:		600 B STREET
		STREET 2:		SUITE 100
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92101
		BUSINESS PHONE:		619-269-6800

	MAIL ADDRESS:	
		STREET 1:		600 B STREET
		STREET 2:		SUITE 100
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92101
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>mitk-20180227xdefa14a.htm
<DESCRIPTION>DEFA14A
<TEXT>
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<div><a name="sA483FDFD3DD10D4C4263D9088F33B238"></a></div><div><div style="line-height:144%;text-align:left;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, DC 20549</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 INFORMATION</font></div><div style="line-height:120%;text-align:center;font-size:12pt;"><font style="font-family:inherit;font-size:12pt;font-weight:bold;">Proxy Statement Pursuant to Section&#160;14(a) of</font></div><div style="line-height:120%;text-align:center;font-size:12pt;"><font style="font-family:inherit;font-size:12pt;font-weight:bold;">the Securities Exchange Act of 1934</font></div><div style="line-height:120%;text-align:left;font-size:12pt;"><font style="font-family:inherit;font-size:12pt;"><br></font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Filed by the Registrant&#160;&#160;&#9746;</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Filed by a party other than the Registrant&#160;&#160;&#9744;</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Check the appropriate box:</font></div><div style="line-height:120%;text-align:left;font-size:6pt;"><font style="font-family:inherit;font-size:6pt;"><br></font></div><div style="line-height:120%;padding-left:4px;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:94.81481481481482%;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:top;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="text-align:left;padding-left:4px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#9744;</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;padding-left:4px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">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;padding-left:4px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#9744;</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;padding-left:4px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">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;padding-left:4px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#9744;</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;padding-left:4px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">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;padding-left:4px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#9746;</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;padding-left:4px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">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;padding-left:4px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#9744;</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;padding-left:4px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Soliciting Material under &#167; 240.14a-12</font></div></td></tr></table></div></div><div style="line-height:120%;text-align:left;font-size:6pt;"><font style="font-family:inherit;font-size:6pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:18pt;"><font style="font-family:inherit;font-size:18pt;font-weight:bold;">MITEK SYSTEMS, INC.</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">(Name of Registrant as Specified in Its Charter)</font></div><div style="line-height:120%;text-align:left;font-size:6pt;"><font style="font-family:inherit;font-size:6pt;"><br></font></div><div style="line-height:120%;text-align:center;font-size:8pt;"><font style="font-family:inherit;font-size:8pt;font-weight:bold;">(Name of Person(s) Filing Proxy Statement, if Other Than the Registrant)</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Payment of Filing Fee (Check the appropriate box):</font></div><div style="line-height:120%;text-align:left;font-size:6pt;"><font style="font-family:inherit;font-size:6pt;"><br></font></div><div style="line-height:120%;padding-left:4px;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:94.07407407407408%;border-collapse:collapse;text-align:left;"><tr><td colspan="6"></td></tr><tr><td style="width:4%;"></td><td style="width:1%;"></td><td style="width:5%;"></td><td style="width:1%;"></td><td style="width:1%;"></td><td style="width:88%;"></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;padding-left:4px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#9746;</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><td colspan="4" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;padding-left:4px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">No fee required.</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;padding-left:4px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#9744;</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><td colspan="4" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;padding-left:4px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11.</font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;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><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><td style="vertical-align:top;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">(1</font></div></td><td style="vertical-align:top;border-bottom:1px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">)</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><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="padding-left:4px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Title of each class of securities to which transaction applies:</font></div><div style="padding-left:4px;font-size:6pt;"><font style="font-family:inherit;font-size:6pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;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><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><td style="vertical-align:top;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">(2</font></div></td><td style="vertical-align:top;border-bottom:1px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">)</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><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;"><div style="padding-left:4px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Aggregate number of securities to which transaction applies:</font></div><div style="padding-left:4px;font-size:6pt;"><font style="font-family:inherit;font-size:6pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;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><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><td style="vertical-align:top;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">(3</font></div></td><td style="vertical-align:top;border-bottom:1px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">)</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><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;"><div style="padding-left:4px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">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><div style="padding-left:4px;font-size:6pt;"><font style="font-family:inherit;font-size:6pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;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><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><td style="vertical-align:top;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">(4</font></div></td><td style="vertical-align:top;border-bottom:1px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">)</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><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;"><div style="padding-left:4px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Proposed maximum aggregate value of transaction:</font></div><div style="padding-left:4px;font-size:6pt;"><font style="font-family:inherit;font-size:6pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;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><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><td style="vertical-align:top;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">(5</font></div></td><td style="vertical-align:top;border-bottom:1px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">)</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><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;"><div style="padding-left:4px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Total fee paid:</font></div><div style="padding-left:4px;font-size:6pt;"><font style="font-family:inherit;font-size:6pt;"><br></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;padding-left:4px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#9744;</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><td colspan="4" style="vertical-align:bottom;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;padding-left:4px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">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:left;padding-left:4px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">&#9744;</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><td colspan="4" style="vertical-align:top;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;padding-left:4px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">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:bottom;border-bottom:1px solid #000000;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><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><td style="vertical-align:top;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">(1</font></div></td><td style="vertical-align:top;border-bottom:1px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">)</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><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;"><div style="padding-left:4px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Amount Previously Paid:</font></div><div style="padding-left:4px;font-size:6pt;"><font style="font-family:inherit;font-size:6pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;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><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><td style="vertical-align:top;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">(2</font></div></td><td style="vertical-align:top;border-bottom:1px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">)</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><td style="vertical-align:bottom;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;padding-right:2px;border-top:1px solid #000000;"><div style="padding-left:4px;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Form, Schedule or Registration Statement No.:</font></div><div style="padding-left:4px;font-size:6pt;"><font style="font-family:inherit;font-size:6pt;"><br></font></div></td></tr><tr><td style="vertical-align:bottom;border-bottom:1px solid #000000;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><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><td style="vertical-align:top;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div 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style="vertical-align:bottom;border-bottom:1px solid #000000;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><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><td style="vertical-align:top;border-bottom:1px solid #000000;padding-left:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:right;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">(4</font></div></td><td style="vertical-align:top;border-bottom:1px solid #000000;padding-right:2px;padding-top:2px;padding-bottom:2px;"><div style="text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">)</font></div></td><td 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style="font-family:inherit;font-size:10pt;"><br></font></div></div><div><br></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">SUPPLEMENT TO THE PROXY STATEMENT FOR THE</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">ANNUAL MEETING OF STOCKHOLDERS</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">TO BE HELD MARCH 7, 2018</font></div><div style="line-height:120%;text-align:justify;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;font-weight:bold;">February 27, 2018</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Explanatory Note</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">This supplement (this &#8220;</font><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Supplement</font><font style="font-family:inherit;font-size:10pt;">&#8221;) is being filed with the Securities and Exchange Commission (the &#8220;</font><font style="font-family:inherit;font-size:10pt;font-weight:bold;">SEC</font><font style="font-family:inherit;font-size:10pt;">&#8221;) and contains important information that supplements and amends the definitive proxy statement of Mitek Systems, Inc. (&#8220;</font><font style="font-family:inherit;font-size:10pt;font-weight:bold;">we</font><font style="font-family:inherit;font-size:10pt;">&#8221; or the &#8220;</font><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Company</font><font style="font-family:inherit;font-size:10pt;">&#8221;) filed with the SEC on January 29, 2018 (the &#8220;</font><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Proxy Statement</font><font style="font-family:inherit;font-size:10pt;">&#8221;) in connection with our annual meeting of stockholders (the &#8220;</font><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Annual Meeting</font><font style="font-family:inherit;font-size:10pt;">&#8221;), including any adjournment or postponement thereof.</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">THE PROXY STATEMENT CONTAINS IMPORTANT INFORMATION REGARDING THE ANNUAL MEETING, AND THIS SUPPLEMENT SHOULD BE READ IN CONJUNCTION WITH THE PROXY STATEMENT IN ITS ENTIRETY.</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">As previously disclosed in the Company&#8217;s Current Report on Form 8-K filed with the SEC on February 27, 2018, the Company entered into an Amended and Restated Executive Severance and Change of Control Agreement between the Company and its Chief Financial Officer, Jeffrey C. Davison on February 27, 2018 (the &#8220;</font><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Restated</font><font style="font-family:inherit;font-size:10pt;">&#32;</font><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Davison Severance Plan</font><font style="font-family:inherit;font-size:10pt;">&#8221;).  The purpose of the Restated Davison Severance Plan was to correct a clerical error contained in Mr. Davison&#8217;s original Executive Severance and Change of Control Plan previously entered into on June 21, 2017 (the &#8220;</font><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Original Davison Severance Plan</font><font style="font-family:inherit;font-size:10pt;">&#8221;), which inadvertently provided that Mr. Davison would be entitled to receive certain gross-up payments in the event that severance payments and benefits payable under the Davison Severance Plan are characterized as &#8220;excess parachute payments&#8221; within the meaning of Section 280G of the U.S. Internal Revenue Code of 1986, as amended (&#8220;</font><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Section 280G</font><font style="font-family:inherit;font-size:10pt;">&#8221;).  The Restated Davison Severance Plan provides for the reduction of any severance payments and benefits payable to Mr. Davison to the extent necessary to ensure that he will not receive any &#8220;excess parachute payments&#8221; under Section 280G.  All other terms and conditions of the Original Davison Severance Plan remain unchanged in the Restated Davison Severance Plan.</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Except as described in this Supplement, the information provided in the Proxy Statement continues to apply and should be considered in voting your shares. To the extent that information in this Supplement differs from or updates information contained in the Proxy Statement, the information in this Supplement is more current.</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Supplemental Information</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The section entitled &#8220;</font><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Potential Payments Upon Termination or Change of Control</font><font style="font-family:inherit;font-size:10pt;">&#8212;</font><font style="font-family:inherit;font-size:10pt;font-style:italic;">Jeffrey C. Davison</font><font style="font-family:inherit;font-size:10pt;">&#8221; is hereby amended and restated in its entirety as follows:</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Jeffrey C. Davison</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">On February 27, 2018 we entered into an Amended and Restated Executive Severance and Change of Control Plan with Jeffrey C. Davison, our Chief Financial Officer (the &#8220;</font><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Davison Severance Plan</font><font style="font-family:inherit;font-size:10pt;">&#8221;), which is retroactively effective for all purposes as of June 21, 2017.</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Under the terms of the Davison Severance Plan, if we terminate Mr. Davison&#8217;s employment without Cause (as defined below) or if Mr. Davison terminates his employment for Good Reason (as defined below), Mr. Davison will be entitled to receive: (i)&#160;all compensation and benefits accrued, but unpaid, up to the effective date of termination; (ii) a lump-sum cash amount equal to 100% of Mr. Davison&#8217;s annual base salary then in effect; and (iii) a lump-sum cash amount equal to 12 months of premium payments for continuation coverage under the Company&#8217;s health plans for Mr. Davison and his dependents.</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">In addition, the Davison Severance Plan provides that in the event that during the two month period prior to the consummation of a Change of Control (as defined below) or the 12 month period following the consummation of a Change of Control, the Company terminates Mr. Davison&#8217;s employment without Cause or if Mr. Davison terminates his employment with the Company for Good Reason, Mr. Davison will be entitled to receive: (i) all compensation and benefits accrued, but unpaid, up to the effective date of termination; (ii) a lump-sum cash amount equal to 100% of Mr. Davison&#8217;s annual base salary then in effect; (iii) a lump-sum cash amount equal to 12 months of premium payments for continuation coverage under the Company&#8217;s health plans for Mr. Davison and his dependents; and (iv) accelerated vesting of 100% of all outstanding equity awards then held by Mr. Davison. </font></div><div><br></div><div><div style="line-height:144%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:138%;padding-bottom:13px;text-align:left;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:144%;text-align:left;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:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">As of September 30, 2017, no such termination or Change of Control event had occurred that required the Company to make an accrual related to the Davison Severance Plan in the financial statements included in the Form 10-K.</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">The timing of severance payments and benefits under the Davison Severance Plan may be deferred to avoid incurring additional taxes and penalties pursuant to Section 409A.  Any severance payments and benefits payable to Mr. Davison under the Davison Severance Plan will be reduced to the extent necessary to ensure that he will not receive any &#8220;excess parachute payments&#8221; under Section 280G.</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">No Change in Board Recommendation</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">There is no change in the Board&#8217;s recommendation to stockholders of the Company set forth in the Proxy Statement that they vote </font><font style="font-family:inherit;font-size:10pt;font-weight:bold;">FOR</font><font style="font-family:inherit;font-size:10pt;">&#32;Proposal 4 to approve, on an advisory (non-binding) basis, the compensation of our named executive officers as described in the Proxy Statement, as amended hereby, at the Annual Meeting.</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">Stockholder Voting</font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:120%;text-align:justify;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">No changes are being made to the proxy card for the Annual Meeting; therefore, if you have already submitted a proxy card or otherwise provided voting instructions, you do not need to complete an additional proxy card or otherwise submit new voting instructions unless you wish to change your vote or your voting instructions. If you have already submitted a completed proxy card or otherwise provided voting instructions but wish to change your vote or your voting instructions, you may revoke your prior proxy card or change your voting instructions by following the instructions in the Proxy Statement and, for example, submitting a new properly executed proxy card or voting instruction form or submitting a new proxy or voting instructions by mail, telephone or via the Internet.</font></div><div style="line-height:120%;text-align:justify;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;font-weight:bold;">Your vote is extremely important. If you have any questions or require any assistance voting your shares,</font></div><div style="line-height:120%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-weight:bold;">please call our Corporate Secretary at (619) 269-6800.</font></div><div><br></div><div><div style="line-height:144%;text-align:center;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div><div style="line-height:138%;padding-bottom:13px;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"><br></font></div></div>	</body>
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