MASTEC INC — Director's Dealing 2004

Dec 3, 2004

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MASTEC INC (MTZ)
CIK: 0000015615
Period of Report: 2004-12-01

Reporting Person: HEUVELEN JOHN VAN (Director)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2004-12-01	Non-Qualified Stock Option (right to buy)	$8.8	A	7500	Acquired	2014-12-01	Common Stock (7500)	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Non-Qualified Stock Option (right to buy)	$4.86	2013-06-02	Common Stock (20000)	20000	Direct
Non-Qualified Stock Option (right to buy)	$7.375	2012-06-14	Common Stock (45000)	45000	Direct
Non-Qualified Stock Option (right to buy)	$13.87	2013-12-16	Common Stock (30000)	30000	Direct

Footnotes

F1: Formula stock option grant pursuant to MasTec, Inc. Amended and Restated 2003 Plan for Non-Employees for no cash consideration.

F2: Exempt stock option grant that vests over three years beginning twelve months after date of grant (12/01/2004). First year 33% vests. Second year an additional 33% vests. Third year remaining 34% vests.

F3: Exempt stock option grant that vests over three years. First two years vest at 33% and third year vests at 34%. Vesting begins twelve months after date of grant (06/02/2003).

F4: Exempt stock option under the MasTec, Inc. 1994 Stock Option Plan for Non-Employee Directors which vest 1/3 per year beginning twelve months from the date of grant in equal installments.

F5: Exempt stock option grant that vests over three years. First two years vest at 33% and third year vests at 34%. Vesting begins twelve months after date of grant (12/16/2003).