MASTEC INC — Director's Dealing 2006

Aug 31, 2006

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MASTEC INC (MTZ)
CIK: 0000015615
Period of Report: 2006-08-29

Reporting Person: SORZANO JOSE S (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2006-08-29	Common Stock	M	20000	$4.32	Acquired	32194	Direct
2006-08-29	Common Stock	S	7855	$11.2929	Disposed	24339	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2006-08-29	Non-Qualified Stock Option (right to buy)	$4.32	M	20000	Disposed	2006-11-12	Common Stock (20000)	Direct

Footnotes

F1: Exercise of exempt Rule 16b-3 option.

F2: Exempt stock option granted under the MasTec, Inc. 1994 Stock Option Plan for Non-Employee Directors. 50% vested May 15, 2002 and remaining 50% vested May 2003.