V & R CONSTRUCTION SERVICES,

contributions and will have attained age 50 before the close of the Plan year to make elective catch-up deferrals. The maximum catch-up deferral was $7,500 for the 2025 Plan year. Employer Matching Contributions Each Employer may elect to provide matching contributions on behalf of participants employed by such Employer, equal to a percentage of such participant’s pre-tax and Roth deferral contributions up to a specified percent of the participant’s annual eligible compensation as provided under the Plan or as adopted by the Employer and approved by the Committee. All matching contributions are made in cash to the participant’s matching contribution account and invested as directed by the participant. 4 Profit Sharing/Retirement Contributions The Employer, in its sole discretion and subjec

bution, if eligible. Vesting A participant’s interest in their pre-tax and Roth deferral accounts, matching contribution account, rollover account and ESOP account is at all times fully vested and nonforfeitable. A participant’s interest in a profit sharing/retirement contribution account is 100 % vested after completing three years of vesting service. A year of vesting service means a plan year in which the participant is credited with at least 1,000 hours of service. Participant accounts are valued on a daily basis. Distributions and Withdrawals The amount credited to participant accounts shall become payable to the participant or the participant’s beneficiary/beneficiaries, as applicable, upon death, retirement, disability or other termination of employment with the Employers. The distr

ntribution, which was $23,500 for the 2025 Plan year. The Plan provides an automatic 6 % deferral election feature and an automatic deferral escalation feature, which increases an automatically enrolled participant's deferral percentage by 1 % annually until the participant's deferral percentage reaches 15 %, unless the participant opts out or changes their deferral election. Additionally, the Plan allows a participant who is eligible to make deferral contributions and will have attained age 50 before the close of the Plan year to make elective catch-up deferrals. The maximum catch-up deferral was $7,500 for the 2025 Plan year. Employer Matching Contributions Each Employer may elect to provide matching contributions on behalf of participants employed by such Employer, equal to a percentage

ers 8,186,262 Participants 13,252,799 Participant rollovers 3,519,100 Total contributions 24,958,161 Total additions 57,012,131 Deductions: Distributions - participants 21,677,272 Administrative expenses 227,223 Total deductions 21,904,495 Net increase in net assets available for benefits prior to Plan transfers 35,107,636 Plan transfers 1,795 Net increase in net assets available for benefits after Plan transfers 35,109,431 Net assets available for benefits at beginning of period 194,545,051 Net assets available for benefits at end of period $ 229,654,482 The accompanying notes are an integral part of these financial statements. 3 Everus 401(k) Plan Notes to Financial Statements As of December 31, 2025 and 2024, and for the Year Ended December 31, 2025 Note 1 - Description of the Plan The

le U.S. employees who are not provided retirement benefits through a collective bargaining agreement may make contributions through payroll deductions and to which we make certain matching contributions. Ethics and Compliance All of our employees are subject to Quanta’s Code of Conduct, which addresses compliance with applicable laws and Quanta’s policies concerning, among other things, general business ethics, competition, anti-corruption and bribery, environmental protection, conflicts of interest, harassment and discrimination, data security and privacy, and insider trading. Quanta’s Code of Conduct also informs employees and third parties (such as suppliers, subcontractors and members of the public) about the resources and confidential reporting mechanisms available to detect, prevent

law. Quanta may also make discretionary employer contributions to such plan. Matching contributions vest immediately, and discretionary employer contributions may be subject to a vesting schedule determined at the time of the contribution, provided that vesting accelerates upon a change in control or the participant’s death or retirement. All matching and discretionary employer contributions, whether vested or not, are forfeited upon a participant’s termination of employment for cause or upon the participant engaging in competition with Quanta or any of its affiliates. As of December 31, 2025 and 2024, the liability related to deferred cash compensation under these plans, including amounts contributed by Quanta, was $ 126.1 million and $ 110.2 million, the majority of which was included i

2 20.1 % Gross profit 4,275,081 15.0 3,510,761 14.8 764,320 21.8 % Equity in earnings of integral unconsolidated affiliates 55,635 0.2 50,484 0.2 5,151 10.2 % Selling, general and administrative expenses (2,189,209) (7.7) (1,824,754) (7.7) (364,455) 20.0 % Amortization of intangible assets (498,795) (1.7) (382,959) (1.6) (115,836) 30.2 % Increase in fair value of contingent consideration liabilities (31,203) (0.1) (7,064) — (24,139) 341.7 % Operating income 1,611,509 5.7 1,346,468 5.7 265,041 19.7 % Interest and other financing expenses (261,445) (1.0) (202,687) (0.9) (58,758) 29.0 % Interest income 15,702 0.1 32,404 0.1 (16,702) (51.5) % Other income, net 23,739 0.1 35,845 0.2 (12,106) (33.8) % Income before income taxes 1,389,505 4.9 1,212,030 5.1 177,475 14.6 % Provision for income taxe