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 * MARR JOHN S JR   2. Issuer Name and Ticker or Trading Symbol TYLER TECHNOLOGIES INC [TYL] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) CEO & Chairman of the Board (Last) (First) (Middle) 370 US ROUTE 1 3. Date of Earliest Transaction (Month/Day/Year) 12/06/2017 (Street) PALMOUTH, ME 04105 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ 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 12/06/2017   S   7,527 D $ 183.93 326,930 I (1) See footnote (1) Common Stock 12/07/2017   M   10,000 A $ 47.2 (2) 336,930 I (3) See footnote (3) Common Stock 12/07/2017   S   10,000 D $ 182.9 326,930 I (4) See footnote (4)

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

Option

$ 47.2

12/07/2017

M

10,000

(5)

12/14/2022

Common Stock

10,000

$ 0

26,000

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
MARR JOHN S JR 370 US ROUTE 1 PALMOUTH, ME 04105	X		CEO & Chairman of the Board

Signatures

John S. Marr Jr.		12/08/2017
**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)	Includes shares owned both directly and indirectly by the reporting person, as follows: (a) 221,930 shares owned directly; (b) 28,000 shares owned indirectly, which are held in a descendant's trust in which Mr. Marr is deemed to have shared voting and/or dispositive power; and (c) 77,000 shares owned indirectly, which are held in a partnership in which Mr. Marr is the general partner (the partnership is owned 99% by a trust in which Mr. Marr's children are the beneficiaries and 1% by the general partner). The reporting person disclaims beneficial ownership of the securities that are identified as owned indirectly except to the extent of his pecuniary interest therein.
(2)	Acquired through the exercise of options.
(3)	Includes shares owned both directly and indirectly by the reporting person, as follows: (a) 231,930 shares owned directly; (b) 28,000 shares owned indirectly, which are held in a descendant's trust in which Mr. Marr is deemed to have shared voting and/or dispositive power; and (c) 77,000 shares owned indirectly, which are held in a partnership in which Mr. Marr is the general partner (the partnership is owned 99% by a trust in which Mr. Marr's children are the beneficiaries and 1% by the general partner). The reporting person disclaims beneficial ownership of the securities that are identified as owned indirectly except to the extent of his pecuniary interest therein.
(4)	Includes shares owned both directly and indirectly by the reporting person, as follows: (a) 221,930 shares owned directly; (b) 28,000 shares owned indirectly, which are held in a descendant's trust in which Mr. Marr is deemed to have shared voting and/or dispositive power; and (c) 77,000 shares owned indirectly, which are held in a partnership in which Mr. Marr is the general partner (the partnership is owned 99% by a trust in which Mr. Marr's children are the beneficiaries and 1% by the general partner). The reporting person disclaims beneficial ownership of the securities that are identified as owned indirectly except to the extent of his pecuniary interest therein.
(5)	Option has graded vesting. Date exercisable will vary with each vesting tranche.

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