PAYNE SHAWN P 4

4 · MATRIX SERVICE CO · Filed Sep 2, 2025

Form 4

Period: 2025-08-29

President, Eng & Constr

Transactions

Exercise/Conversion
COMMON STOCK
2025-08-30+2,817→ 107,704 total
Award
COMMON STOCK
2025-08-30+24,567→ 128,346 total
Exercise/Conversion
RESTRICTED STOCK UNITS
2025-08-30−1,513→ 0 total
From: 2022-08-30Exp: 2025-08-30→ COMMON STOCK (1,513 underlying)
Tax Payment
COMMON STOCK
2025-08-29$15.13/sh−1,604$24,269→ 105,482 total
Exercise/Conversion
COMMON STOCK
2025-08-30+1,513→ 106,995 total
Disposition to Issuer
COMMON STOCK
2025-08-30$15.13/sh−1,513$22,892→ 105,482 total
Tax Payment
COMMON STOCK
2025-08-30$15.13/sh−1,108$16,764→ 103,779 total
Tax Payment
COMMON STOCK
2025-08-30$15.13/sh−9,667$146,262→ 118,679 total
Exercise/Conversion
COMMON STOCK
2025-08-29+4,077→ 111,163 total
Disposition to Issuer
COMMON STOCK
2025-08-29$15.13/sh−4,077$61,685→ 107,086 total
Tax Payment
COMMON STOCK
2025-08-30$15.13/sh−595$9,002→ 104,887 total
Exercise/Conversion
RESTRICTED STOCK UNITS
2025-08-29−4,077→ 8,154 total
From: 2024-08-29Exp: 2027-08-29→ COMMON STOCK (4,077 underlying)
Disposition to Issuer
COMMON STOCK
2025-08-30$15.13/sh−2,817$42,621→ 104,887 total
Exercise/Conversion
RESTRICTED STOCK UNITS
2025-08-30−2,817→ 2,817 total
From: 2023-08-30Exp: 2026-08-30→ COMMON STOCK (2,817 underlying)

Footnotes (7)

[F1]EACH RESTRICTED STOCK UNIT IS THE ECONOMIC EQUIVALENT OF ONE SHARE OF MATRIX SERVICE COMPANY COMMON STOCK. ALL RESTRICTED STOCK UNITS ARE SETTLED SOLELY IN CASH WHEN VESTED.
[F2]SHARES DISPOSED TO SATISFY TAX OBLIGATION DUE ON VEST DATE FOR STOCK-SETTLED RESTRICTED STOCK UNITS.
[F3]SHARES RECEIVED ON CONVERSION OF PERFORMANCE STOCK UNIT AWARD AS PREDETERMINED MARKET-BASED CRITERIA WAS MET.
[F4]SHARES DISPOSED TO SATISFY TAX OBLIGATION DUE ON VEST DATE FOR STOCK-SETTLED PERFORMANCE STOCK UNITS.
[F5]FOR THIS SERVICE-BASED AWARD OF CASH-SETTLED RESTRICTED STOCK UNITS, 25% WILL VEST EACH YEAR FROM AUGUST 29, 2024 TO AUGUST 29, 2027.
[F6]FOR THIS SERVICE-BASED AWARD OF CASH-SETTLED RESTRICTED STOCK UNITS, 25% WILL VEST EACH YEAR FROM AUGUST 30, 2022 TO AUGUST 30, 2025.
[F7]FOR THIS SERVICE-BASED AWARD OF CASH-SETTLED RESTRICTED STOCK UNITS, 25% WILL VEST EACH YEAR FROM AUGUST 30, 2023 TO AUGUST 30, 2026.

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