144 0001473203 XXXXXXXX LIVE 0001050915 Quanta Services, Inc. 2727 NORTH LOOP WEST HOUSTON TX 77008 713-629-7600 Earl Austin Jr. President/CEO Common Stock Merrill Lynch 800 Capitol St Suite 1900 Houston TX 77002 155992 123279998.26 150060149 05/05/2026 NYSE Common Stock 03/02/2022 Stock Bonus Quanta Services, Inc. N 50343 03/02/2022 Stock Bonus Common Stock 03/26/2022 Stock Bonus Quanta Services, Inc. N 4925 03/26/2022 Stock Bonus Common Stock 03/26/2022 Stock Bonus Quanta Services, Inc. N 5193 03/26/2022 Stock Bonus Common Stock 02/27/2025 Stock Bonus Quanta Services, Inc. N 58465 02/27/2025 Stock Bonus Common Stock 03/04/2025 Stock Bonus Quanta Services, Inc. N 4397 03/04/2025 Stock Bonus Common Stock 03/04/2025 Stock Bonus Quanta Services, Inc. N 2916 03/04/2025 Stock Bonus Common Stock 03/09/2025 Stock Bonus Quanta Services, Inc. N 3761 03/09/2025 Stock Bonus Y 05/05/2026 Tyler Morgan