Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
THORNTON JOHN M
   2. Issuer Name and Ticker or Trading Symbol
MITEK SYSTEMS INC [MITK] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
C/O MITEK SYSTEMS, INC., 8911 BALBOA AVENUE SUITE B		 3. Date of Earliest Transaction (Month/Day/Year)
02/23/2012
(Street)

SAN DIEGO, CA 92123		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 02/23/2012   M   27,400 (1) D $ 10.9201 2,459,681 I See Note (2)
Common Stock 02/24/2012   M   184,177 (1) D $ 10.8717 2,275,504 I See Note (2)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
THORNTON JOHN M
C/O MITEK SYSTEMS, INC.
8911 BALBOA AVENUE SUITE B
SAN DIEGO, CA 92123		   X      
THORNTON SALLY B
C/O MITEK SYSTEMS, INC.
8911 BALBOA AVENUE SUITE B
SAN DIEGO, CA 92123		   X      

Signatures

 /s/ Fred Hutton, by Power of Attorney for John M. Thornton   02/27/2012
**Signature of Reporting Person Date
 /s/ Fred Hutton, by Power of Attorney for Sally B. Thornton   02/27/2012
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(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).
(1) The sales reported on this Form 4 were made pursuant to a Rule 10b5-1 plan adopted by the reporting persons on December 22, 2011.
(2) Comprised of 25,000 shares held directly by Mr. Thornton, 25,000 shares held directly by Mrs. Thornton and 2,225,504 shares held indirectly through the Thornton Family Trust of 1981. Mr. and Mrs. Thornton have shared voting and investment control over all of the shares held directly by each of them and the shares held indirectly by their family trust.

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