144 0001101864 XXXXXXXX LIVE 0001050915 QUANTA SERVICES, INC. 001-13831 2727 NORTH LOOP WEST HOUSTON TX 77008-1044 713-629-7600 WAYNE DONALD Officer Common Fidelity Brokerage Services LLC

900 Salem Street Smithfield RI 02917

14000 6213332.20 149115887 11/06/2025 NYSE Common 03/02/2022 Restricted Stock Vesting Issuer N 10074 03/02/2022 Compensation Common 03/02/2023 Restricted Stock Vesting Issuer N 2271 03/02/2023 Compensation Common 03/04/2023 Restricted Stock Vesting Issuer N 92 03/04/2023 Compensation Common 03/26/2023 Restricted Stock Vesting Issuer N 406 03/26/2023 Compensation Common 03/01/2024 Restricted Stock Vesting Issuer N 893 03/01/2024 Compensation Common 03/04/2024 Restricted Stock Vesting Issuer N 92 03/04/2024 Compensation Common 03/09/2024 Restricted Stock Vesting Issuer N 60 03/09/2024 Compensation Common 03/26/2024 Restricted Stock Vesting Issuer N 112 03/26/2024 Compensation Y 11/06/2025 /s/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Donald C. Wayne