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
                                                                                  
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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(f) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

BROWN BROTHERS HARRIMAN & CO 		2. Issuer Name and Ticker or Trading Symbol

TYLER TECHNOLOGIES INC [ TYL ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                      __ X __ 10% Owner
_____ Officer (give title below)      _____ Other (specify below)
(Last)          (First)          (Middle)

140 BROADWAY,  		3. Date of Earliest Transaction (MM/DD/YYYY)

6/28/2011
(Street)

NEW YORK, NY 10005
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

___ Form filed by One Reporting Person
_ X _ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3) 		2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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   6/28/2011     S    25000   D $26.9745   3860013   I   See Note   (1)
Common Stock   6/29/2011     S    25000   D $26.1857   3835013   I   See Note   (1)
Common Stock   6/30/2011     S    25000   D $26.9087   3810013   I   See Note   (1)
Common Stock   7/1/2011     S    10000   D $26.9927   3800013   I   See Note   (1)
Common Stock   7/5/2011     S    20000   D $27.008   3780013   I   See Note   (1)
Common Stock   7/6/2011     S    21000   D $27.2083   3759013   I   See Note   (1)
Common Stock   7/7/2011     S    20000   D $27.3971   3739013   I   See Note   (1)
Common Stock   7/8/2011     S    3600   D $27.2014   3735413   I   See Note   (1)
Common Stock   7/13/2011     S    10000   D $27   3725413   I   See Note   (1)
Common Stock   7/19/2011     S    10824   D $27   3714589   I   See Note   (1)
Common Stock   7/20/2011     S    200   D $27   3714389   I   See Note   (1)

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3) 		2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. 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 7. Title and Amount of Securities Underlying Derivative Security
(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

Explanation of Responses:
( 1)  All shares reported on this Form 4 are held by 1818 Master Partners, Ltd. (the "Fund") on behalf of investors in the Fund. Brown Brothers Harriman & Co. ("BBH&Co."), which holds the voting interest (management shares) in the Fund, has designated Richard H. Witmer and Timothy E. Hartch, or either of them, as the sole and exclusive persons at BBH&Co. having voting power (including the power to vote or to direct the vote) and investment power (including the power to dispose or to direct the disposition) with respect to all investments of the Fund. Each reporting person disclaims beneficial ownership of the reported securities except to the extent of its or his pecuniary interest therein.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
BROWN BROTHERS HARRIMAN & CO
140 BROADWAY
NEW YORK, NY 10005
X

1818 Master Partners, Ltd.
C/O BROWN BROTHERS HARRIMAN & CO.
140 BROADWAY
NEW YORK, NY 10005
X

Witmer Richard H.
C/O BROWN BROTHERS HARRIMAN & CO.
140 BROADWAY
NEW YORK, NY 10005
X

Hartch Timothy E.
C/O BROWN BROTHERS HARRIMAN & CO.
140 BROADWAY
NEW YORK, NY 10005
X


Signatures
/s/ Richard H. Witmer, Director, 1818 Master Partners, Ltd. 9/22/2011
** Signature of Reporting Person Date

/s/ Richard H. Witmer, Partner, Brown Brothers Harriman & Co. 9/22/2011
** Signature of Reporting Person Date

/s/ Timothy E. Hartch, Partner, Brown Brothers Harriman & Co. 9/22/2011
** 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 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).
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.
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