144 0001662017 XXXXXXXX LIVE 0000015615 MasTec, Inc. 001-08106 800 S. Douglas Road, 12th Floor Coral Gables, FL 33134 (305) 599-1800 Palomarez Javier Alberto Board of Directors common Edward Jones

201 Progress Parkway Maryland Heights MO 63043

700 101185.00 79234969 11/29/2024 NYSE common 08/15/2017 DIRECTOR COMPENSATION MasTec Inc. N 124 08/15/2017 electronic shares common 11/15/2017 DIRECTOR COMPENSATION MasTec Inc. N 166 11/15/2017 electronic shares common 11/15/2017 DIRECTOR COMPENSATION MasTec Inc. N 350 11/15/2017 electronic shares common 02/15/2018 DIRECTOR COMPENSATION MasTec Inc. N 60 02/15/2018 electronic shares Y n/a 11/29/2024 Pamela Ramberg