MATRIX SERVICE CO

During the three months ended June 30, 2026, none of our directors or officers adopted or terminated a Rule 10b5-1 trading arrangement or Non-Rule 10b5-1, as each term is defined under Item 408(a) of Regulation S-K.

As previously announced, Kevin S. Cavanah, Chief Financial Officer, is separating from Matrix Service Company (the “Company”). While the Company completes a comprehensive search for its permanent Chief Financial Officer, Andrew J. (“A.J.”) Smith has been appointed as the Company’s Chief Financial Officer on an interim basis, effective September 10, 2026 and until the Company appoints a permanent replacement for the Chief Financial Officer position. Mr. Smith has been designated as the Company’s principal financial officer and principal accounting officer for this interim period.

Mr. Smith, age 39, has served as the Senior Director of Accounting and Treasury for the Company since October 2025. From February 2023 to October 2025, Mr. Smith served as the Company’s Corporate Controller. Prior to joining the Company, Mr. Smith was a senior manager in the audit practice of Ernst & Young. Mr. Smith holds a Bachelor of Business Administration degree and a Master of Accountancy degree from the University of Oklahoma. Mr. Smith is a Certified Public Accountant and a Certified Treasury Professional.

In connection with his appointment as interim Chief Financial Officer, Mr. Smith will receive supplemental compensation in the form of a cash payment of $10,000 per month and a one-time grant of 2,500 restricted stock units, which will vest in equal installments over three years from the grant date (which grant is in addition to the grant of 5,000 restricted stock units related to his service as Senior Director of Accounting and Treasury). The foregoing description of the agreement between Mr. Smith and the Company relating to his appointment as interim Chief Financial Officer is qualified in its entirety by the full text of the agreement, which is filed as Exhibit 10.25 to this Form 10-K and is incorporated herein by reference.