Statement of Changes in Beneficial Ownership (4)

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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3235-0287

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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 * MILLER JAMES HARRY	2. Issuer Name and Ticker or Trading Symbol MATRIX SERVICE CO [ MTRX ]	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) 5100 EAST SKELLY DRIVE, SUITE 100	3. Date of Earliest Transaction (MM/DD/YYYY) 4/1/2021
(Street) TULSA, OK 74135 (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 (1)	4/1/2021 (2)		A(1)	V	730	A	$13.69 (3)	42359 (4)	D

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)	MATRIX SERVICE COMPANY COMMON STOCK PURCHASED VIA THE MATRIX SERVICE COMPANY 2011 EMPLOYEE STOCK PURCHASE PLAN ("THE ESPP") IN A TRANSACTION THAT WAS EXEMPT UNDER BOTH RULE 16b-3(c) AND RULE 16b-3(d) AND IS VOLUNTARILY REPORTED.
(2)	SHARES WERE PURCHASED VIA THE ESPP. THE OFFERING PERIOD CONSISTED OF THE THREE MONTHS ENDED MARCH 31, 2021. THE SHARES WERE ACQUIRED ON THE FIRST DAY AFTER THE END OF THE OFFERING PERIOD.
(3)	PER THE ESPP, THE PURCHASE PRICE WAS DETERMINED BY THE LAST CLOSING CONSOLIDATED BID PRICE PER SHARE ON THE PURCHASE DATE.
(4)	INCLUDES 34,148 SHARES OF MATRIX SERVICE COMPANY COMMON STOCK OWNED OUTRIGHT.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
MILLER JAMES HARRY 5100 EAST SKELLY DRIVE SUITE 100 TULSA, OK 74135	X

Signatures
James H. Miller		4/5/2021
**Signature of Reporting Person		Date