MasTec, Inc., an infrastructure construction company, provides engineering, building, installation, maintenance, and upgrade services for communications, energy, utility, and other infrastructure primarily in the United States and Canada. It operates through Communications, Clean Energy and Infrastructure, Oil and Gas, Power Delivery, and Other segments. The company builds underground and overhead distribution systems, including trenches, conduits, cell towers, cable, and power lines, which provide wireless and wireline/fiber communications; clean energy infrastructure comprising renewable energy; natural gas, product transport; electrical and gas transmission, and distribution systems; heavy industrial plants; compressor and pump stations, and treatment plants; water and sewer infrastructure, including water pipelines; and other civil construction infrastructure. It also installs electrical and other gas distribution and transmission systems, power generation facilities, buried and aerial fiber optic and other cables, as well as home automation and energy management solutions. In addition, the company offers maintenance and upgrade support services comprising maintenance of customers' distribution facilities, networks, and infrastructure, including communications, power generation, pipeline, electrical distribution and transmission, and heavy civil infrastructure; service restoration for natural disasters and accidents; and routine replacements and upgrades to overhauls. Its customers include public and private energy providers, pipeline operators, wireless and wireline/fiber service providers, broadband operators, install-to-the-home service providers, and government entities. MasTec, Inc. was founded in 1929 and is headquartered in Coral Gables, Florida.

Insider	Title	Transaction Type	Shares Traded	% of Shares Traded	% Chg. in Shares	End of Filing Shares	Price	Transaction Value	Filing Date	Transaction Date
Robert J. Dwyer	Lead Independent Director Show All	Other Acquisition (Other Acquisition)	215.0	0.000276%	1.1%	20.7K	—	—	18 Nov 2025	14 Nov 2025 - 14 Nov 2025
Robert J. Dwyer	Lead Independent Director Show All	Sale to Issuer (Sale to Issuer)	-48.0	-0.000061%	-0.2%	20.7K	192.2 - 192.2	-9.2K	18 Nov 2025	14 Nov 2025 - 14 Nov 2025
Julia L. Johnson	Independent Director Show All	Other Acquisition (Other Acquisition)	215.0	0.000276%	0.3%	73.1K	—	—	18 Nov 2025	14 Nov 2025 - 14 Nov 2025
Javier A. Palomarez	Independent Director Show All	Other Acquisition (Other Acquisition)	215.0	0.000276%	1.9%	11.4K	—	—	18 Nov 2025	14 Nov 2025 - 14 Nov 2025
Javier A. Palomarez	Independent Director Show All	Sale to Issuer (Sale to Issuer)	-48.0	-0.000061%	-0.4%	11.4K	192.2 - 192.2	-9.2K	18 Nov 2025	14 Nov 2025 - 14 Nov 2025
Ava L. Parker
C. Robert Campbell
Ava L. Parker
Ernest Nicolae Csiszar
Ernest Nicolae Csiszar
T. Michael Love
T. Michael Love
T. Michael Love
Paul Dimarco
C. Robert Campbell
C. Robert Campbell
Robert E. Apple
C. Robert Campbell
C. Robert Campbell
Jorge Mas
Jorge Mas
Jose Ramon Mas
Jose Ramon Mas
Ava L. Parker
Ava L. Parker
C. Robert Campbell
Javier A. Palomarez
Javier A. Palomarez
Julia L. Johnson
Robert J. Dwyer