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 * 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 (Month/Day/Year) 11/15/2011 (Street) NEW YORK, NY 10005 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 11/15/2011   S   110,000 D $ 32.1746 2,893,363 I See footnote (1) Common Stock 11/16/2011   S   40,684 D $ 32.1722 2,852,679 I See footnote (1)

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
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.		11/15/2011
**Signature of Reporting Person		Date
/s/ Richard H. Witmer, Partner, Brown Brothers Harriman & Co.		11/17/2011
**Signature of Reporting Person		Date
/s/ Timothy E. Hartch, Partner, Brown Brothers Harriman & Co.		11/17/2011
**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)	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.

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