PARSONS, LEE & JULIANO, PC

quirements do not apply to amounts credited to the participant’s account attributable to allocated cash dividends on Parsons common stock, which are not subject to forfeiture. The vesting schedule in the Parsons ESOP was amended effective January 1, 2020. For participant accounts which were not 100% vested, the vested account balance increased according to the new schedule if the participant worked one (1) hour of service on or after January 1, 2020. The vested percentage increases one level on the vesting schedule for each Plan Year in which a participant worked at least 1,000 hours. If a participant did not work at least one (1) hour of service on or after January 1, 2020, their vested account balance will remain unchanged and their account is subject to the vesting schedule in effect at

tions to participants. Certain administrative functions are performed by the officers and employees of Parsons. No such officer or employee receives compensation from the Plan. No administrative expenses were paid by the Plan for the year ended December 31, 2022. 5. Fair Value Measurements The Plan accounts for investments in accordance with Accounting Standards Codification (“ASC”) 820, Fair Value Measurement . ASC 820 defines fair value as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants at the measurement date. ASC 820 establishes a three-level fair value hierarchy that prioritizes the inputs used to measure f

ted to the NEOs is reflected in “Outstanding Equity Awards at September 28, 2025” below. (2) Includes discretionary amounts paid under the annual cash incentive plan. (3) Includes matching contributions made to the Company's Retirement Account Plan and Non-Qualified Plan during the year. To the extent qualifying compensation was not received during the year, such as certain non-equity incentive plan compensation, the related matching contribution may be reported in a subsequent year. (4) The Lee Foundation, an affiliate of the Company, matches on a dollar-for-dollar basis up to $5,000 annually, charitable contributions made by NEOs to qualifying organizations. Such matching contributions are not considered compensation of the NEO. 32 Table of Contents Outstanding Equity Awards at September

s are expected to be outstanding, and is determined based on historical experience of similar awards, giving consideration to contractual terms of the 52 Table of Contents awards, vesting schedules and expectations of future employee behavior. The volatility factor is calculated using historical market data for our Common Stock. The time frame used is equal to the expected term. We base the risk-free interest rate on the yield to maturity at the time of the stock option grant on zero-coupon U.S. government bonds having a remaining term equal to the option's expected term. When estimating forfeitures, we consider voluntary termination behavior as well as actual option forfeitures. We amortize as compensation expense the value of stock options and restricted Common Stock using the straight-l

obligation, end of year 175,524 188,528 Fair value of plan assets, beginning of year: 193,192 210,031 Actual return on plan assets 8,285 19,957 Benefits paid ( 13,655 ) ( 13,021 ) Administrative expenses paid ( 1,470 ) ( 1,155 ) Settlements — ( 22,620 ) Fair value of plan assets, end of year 186,352 193,192 Funded status 10,828 4,664 Disaggregated amounts recognized in the Consolidated Balance Sheets are as follows: (Thousands of Dollars) September 28 2025 September 29 2024 Net pension assets 10,828 4,664 Accumulated other comprehensive income (before income taxes) 14,683 8,804 Amounts recognized in accumulated other comprehensive (loss) income are as follows: (Thousands of Dollars) September 28 2025 September 29 2024 Unrecognized net actuarial gain 17,581 12,550 Unrecognized prior service