MASTEC INC — Director's Dealing 2012

Dec 7, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MASTEC INC (MTZ)
CIK: 0000015615
Period of Report: 2012-12-06

Reporting Person: JOHNSON JULIA L (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-12-06	Common Stock	M	7500	$4.86	Acquired	52825	Direct
2012-12-06	Common Stock	M	30000	$13.87	Acquired	82825	Direct
2012-12-06	Common Stock	S	37500	$22.7438	Disposed	45325	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-12-06	Non-Qualified Stock Option (right to buy)	$4.86	M	7500	Disposed	2013-06-02	Common Stock (7500)	Direct
2012-12-06	Non-Qualified Stock Option (right to buy)	$13.87	M	30000	Disposed	2013-12-16	Common Stock (30000)	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 $22.70 to $22.80, 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 June 2nd of 2004, 2005, and 2006.

F3: Approximately one-third of the options vested on December 16, 2004 and approximately two-thirds of the options vested on September 2, 2005.