MASTEC INC — Director's Dealing 2011

Sep 6, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MASTEC INC (MTZ)
CIK: 0000015615
Period of Report: 2011-09-02

Reporting Person: Dwyer Robert J (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-09-02	Common Stock	M	15000	$7.09	Acquired	51298	Direct
2011-09-02	Common Stock	S	15000	$20.7075	Disposed	36298	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-09-02	Non-Qualified Stock Option (right to buy)	$7.09	M	15000	Disposed	2014-11-01	Common Stock (15000)	Direct

Footnotes

F1: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.69 to $20.755, inclusive. The reporting person undertakes to provide to MasTec, Inc. ("MasTec"), any security holder of MasTec or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote (1) to this Form 4.

F2: The options vested in substantially equal installments on November 1st of 2005, 2006, and 2007.