PERSONNEL MANAGEMENT SERVICES INC. DBA EXPRESS MANAGED SERVICES

that may be made during the plan year. The Plan complied with non-discrimination requirements under the Code during 2025 and 2024 through its safe harbor design for deferrals and matching contributions. Eligible employees hired for the first time on or after January 1, 2017 as well as eligible employees rehired on or after January 1, 2022 are automatically enrolled to make Before-Tax Contributions equal to 6 % of Total Pay, with a 1 % automatic increase each year until the rate reaches 10 %, unless the employee makes an alternative election to contribute at a different rate or opt out of automatic enrollment. 3 AMERICAN EXPRESS RETIREMENT SAVINGS PLAN Notes to Financial Statements Company Matching Contributions The Company matches 100 % of a participant’s Before-Tax Contributions and/or R

haring Contributions were made in 2025 or 2024. Qualified Non-Elective Contributions The Company may make Qualified Non-Elective Contributions (“QNEC”). A QNEC is a discretionary, fully vested contribution allocated in accordance with the Company’s direction at the time the QNEC is approved. Any QNECs are fully vested when made and distributable only under circumstances that permit distributions of Before-Tax Contributions or Roth Contributions. No QNECs were made in 2025 or 2024. Disability Contributions Certain qualifying participants who become disabled, as defined by the Plan Document, are eligible to receive contributions similar to Fixed Rate Contributions, Discretionary Profit Sharing Contributions (if applicable) and Matching Contributions. Allocation of Account Balances A particip

fter their date of hire, and eligible employees hired for the first time on or after January 1, 2017 as well as those rehired on or after January 1, 2022 are covered by the Plan’s automatic enrollment provisions. Eligible employees can qualify to receive Company contributions, if any, upon completion of six months of service. The Plan is subject to the provisions of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”). The following is not a comprehensive description of the Plan, and therefore does not include all situations and limitations covered by the Plan. The Plan Document (“Plan Document”) is the exclusive governing document and should be referred to for more complete information. Administration Principal Life Insurance Company is the recordkeeper and Delaware C

me 1,993 Total investment income 1,452,284 Interest on notes receivable from participants 5,993 Total additions to net assets 2,159,835 Deductions: Withdrawal payments ( 749,319 ) Administrative expenses ( 14,383 ) Total deductions ( 763,702 ) Net increase in net assets available for benefits 1,396,133 Net assets available for benefits at beginning of year $ 8,958,491 Net assets available for benefits at end of year $ 10,354,624 See accompanying notes to the financial statements . 2 AMERICAN EXPRESS RETIREMENT SAVINGS PLAN Notes to Financial Statements 1. Description of the Plan General The American Express Retirement Savings Plan (the “Plan”), which became effective June 11, 1973, is a defined contribution plan. Under the terms of the Plan, regular full-time and certain part-time U.S.-pai

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