Initial Statement of Beneficial Ownership (3)

FORM 3	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0104 Estimated average burden hours per response... 0.5
	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person * THOMPSON JANE J.	2. Date of Event Requiring Statement (MM/DD/YYYY) 9/20/2017	3. Issuer Name and Ticker or Trading Symbol MITEK SYSTEMS INC [MITK]
(Last)        (First)        (Middle) 600 B STREET, SUITE 100	4. Relationship of Reporting Person(s) to Issuer (Check all applicable) __ X __ Director                            _____ 10% Owner _____ Officer (give title below)          _____ Other (specify below)
(Street) SAN DIEGO, CA 92101        (City)              (State)              (Zip)	5. If Amendment, Date Original Filed (MM/DD/YYYY)	6. Individual or Joint/Group Filing (Check Applicable Line) _ X _ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Sock	53880   (1)	D

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 4)	2. Date Exercisable and Expiration Date (MM/DD/YYYY)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (Right to Buy)	11/4/2015   (2)	11/4/2024	Common Sock	10000.0	$2.66	D

Explanation of Responses:
(1)	Comprised of 31,250 shares of common stock and 12,159 shares of common stock subject to restricted stock units held by the reporting person.
(2)	Represents a non-qualified stock option granted to the reporting person on November 4, 2014 in connection with her service as a member of the Issuer's Advisory Board. The option is exercisable as to 7,083 shares and the remaining 2,917 shares vest in equal monthly installments and will be fully vested on November 4, 2018.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
THOMPSON JANE J. 600 B STREET, SUITE 100 SAN DIEGO, CA 92101	X

Signatures
/s/ Michael W. Lieburn, by Power of Attorney		9/22/2017
** Signature of Reporting Person		Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
*	If the form is filed by more than one reporting person, see Instruction 5(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note:	File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.