TYL Tyler Technologies Corp

FORM 4 [X] 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 or Section 30(h) of the Investment Company Act of 1940                       

1. Name and Address of Reporting Person * King Luther 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 _____ Officer (give title below)    _____ Other (specify below)
(Last)          (First)          (Middle) 301 COMMERCE STREET SUITE 1600	3. Date of Earliest Transaction (MM/DD/YYYY) 5/12/2021
(Street) FORT WORTH, TX 76102 (City)        (State)        (Zip)	4. 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 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	5/12/2021		M		753	A	(1)	80767	D
Common Stock	5/12/2021		M(3)		5000	A	$37.44	85767	D
Common Stock	5/12/2021		S(4)		486	D	$386.6	85281	D
Common Stock	5/12/2021		M(5)		5000	A	$64.95	90281	D
Common Stock	5/12/2021		S(4)		839	D	$387.67	89442	D
Common Stock	5/12/2021		M(6)		5000	A	$77.19	94442	D
Common Stock	5/12/2021		S(4)		999	D	$387.16	93443	D
Common Stock	5/12/2021		M(7)		5000	A	$121.11	98443	D
Common Stock	5/12/2021		S(4)		1563	D	$387.67	96880	D
Common Stock	5/12/2021		M(8)		5000	A	$146.92	101880	D
Common Stock	5/12/2021		S(4)		1893	D	$387.97	99987	D
Common Stock	5/12/2021		M(9)		5000	A	$167.14	104987	D
Common Stock	5/12/2021		S(4)		2155	D	$388	102832	D
Common Stock								61179	I	See footnote (10)

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
Common Stock	(1)	5/12/2021		M			753	(2)	(2)	Common Stock	753	$0	0	D
Common Stock	$37.44	5/12/2021		M			5000	(11)	5/10/2022	Common Stock	5000	$0	0	D
Common Stock	$64.95	5/12/2021		M			5000	(12)	5/9/2023	Common Stock	5000	$0	0	D
Common Stock	$77.19	5/12/2021		M			5000	(13)	5/14/2024	Common Stock	5000	$0	0	D
Common Stock	$121.11	5/12/2021		M			5000	(14)	5/12/2025	Common Stock	5000	$0	0	D
Common Stock	$146.92	5/12/2021		M			5000	(15)	5/11/2026	Common Stock	5000	$0	0	D
Common Stock	$167.14	5/12/2021		M			5000	(16)	5/10/2027	Common Stock	5000	$0	0	D

Explanation of Responses:
(1)	Restricted stock units convert into common stock on a one-for-one basis.
(2)	On May 12, 2020, Mr. King was granted 753 restricted stock units, which vested 100% on the first anniversary of the grant date and which were settled by the Issuer on such date, subject to the terms and conditions of the Issuer's 2018 Stock Incentive Plan.
(3)	Exercise of stock options granted to Mr. King on May 10, 2012.
(4)	Shares sold to pay the exercise price of options.
(5)	Exercise of stock options granted to Mr. King on May 9, 2013.
(6)	Exercise of stock options granted to Mr. King on May 14, 2014.
(7)	Exercise of stock options granted to Mr. King on May 12, 2015.
(8)	Exercise of stock options granted to Mr. King on May 11, 2016.
(9)	Exercise of stock options granted to Mr. King on May 10, 2017.
(10)	Represents shares of common stock held by clients of Luther King Capital Management Corporation, an investment advisory firm controlled by Mr. King. Mr. King expressly disclaims beneficial ownership of such shares of common stock, except to the extent of his pecuniary interest therein.
(11)	Option vested in equal installments beginning May 10, 2013.
(12)	Option vested in equal installments beginning May 9, 2014.
(13)	Options vested in equal installments beginning May 14, 2015.
(14)	Options vested in equal installments beginning May 12, 2016.
(15)	Options vested in equal installments beginning May 11, 2017.
(16)	Options vested in equal installments beginning May 10, 2018.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
King Luther Jr 301 COMMERCE STREET SUITE 1600 FORT WORTH, TX 76102	X

Signatures
/s/ J. Luther King, Jr.		5/12/2021
**Signature of Reporting Person		Date