MATRIX SERVICE CO

Trading Arrangements

On February 16, 2026, Mr. Kevin S. Cavanah, our Vice President and Chief Financial Officer, entered into a trading plan with his broker intended to satisfy the affirmative defense conditions of Rule 10b5-1 under the Securities and Exchange Act of 1934 (“Rule 10b5-1 Trading Plan”). The Rule 10b5-1 Trading Plan allows Mr. Cavanah to sell up to 120,000 shares of Matrix Service Company common stock. Mr. Cavanah’s Rule 10b5-1 Trading Plan expires upon the earlier of October 1, 2027 or the date all trades pursuant to such trading plan are executed.

Amended and Restated Bylaws

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On May 5, 2026, the Board of Directors of the Company amended and restated the Company’s Amended and Restated Bylaws (as so amended and restated, the “Amended and Restated Bylaws”), which became effective immediately. The Amended and Restated Bylaws enhance clarity and effect technical and administrative changes to conform to changes in the Delaware General Corporation Law (the “DGCL”). The amendments effected by the Amended and Restated Bylaws, among other things:

•modify certain provisions to reflect and conform to changes in the DGCL, including, those relating to the stock ledger available to stockholders prior to a meeting of stockholders and waiver of notice of a meeting;

•clarify that the vote of the holders of a majority of the issued and outstanding voting stock present in person or represented by proxy and entitled to vote on the matter shall decide any matter brought before a meeting of stockholders, except as provided to the contrary by the DGCL, the Company’s Certificate of Incorporation or the Amended and Restated Bylaws;

•modify the list of required and discretionary officers of the Company and the respective duties and authority of such officers;

•eliminate as redundant with disclosure rules the requirement that the Board present certain information regarding the business and condition of the Company at any stockholder meeting; and

•incorporate certain ministerial and conforming changes to provide clarification and consistency.

The foregoing summary of the Amended and Restated Bylaws does not purport to be a complete description and is qualified in its entirety by reference to the full text of the Amended and Restated Bylaws, a copy of which is filed as Exhibit 3.2 to this filing and incorporated herein by reference.