MASTEC INC — Director's Dealing 2013

Mar 1, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MASTEC INC (MTZ)
CIK: 0000015615
Period of Report: 2013-03-01

Reporting Person: de Cardenas Alberto (EVP, General Counsel)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-03-01	Common Stock	M	45000	$10.13	Acquired	91977	Direct
2013-03-01	Common Stock	S	45000	$31.08	Disposed	46977	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-03-01	Non-Qualified Stock Option (right to buy)	$10.13	M	45000	Disposed	2010-11-16	Common Stock (45000)	Direct

Footnotes

F1: The price reported in Column 4 is a weighted average price. These shares were sold pursuant to a 10b5-1 Sales Plan in multiple transactions at prices ranging from
$30.98 to $31.25 inclusive. The reporting person undertakes to provide to MasTec, Inc. ("MasTec"), any security holder of MasTec or the staff of the Securites and
Exchange Commission, upon request, full information regarding the number of shares sold at each seperate price within the range set forth in footnote (1) to this
Form-4.