MASTEC INC — Director's Dealing 2003

Aug 18, 2003

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MASTEC INC (mtz)
CIK: 0000015615
Period of Report: 2003-08-14

Reporting Person: MAS JORGE (Director, 10% Owner)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
1995-02-03	Stock Options (right to buy)	$5.9445	A	49290	Acquired	2005-02-03	Common Stock (49290)	Direct
1996-03-26	Stock Options (right to buy)	$4.7778	A	135001	Acquired	2006-03-26	Common Stock (135001)	Direct
1997-12-29	Stock Options (right to buy)	$14.0625	A	225000	Acquired	2007-12-29	Common Stock (225000)	Direct
1999-10-04	Stock Options (right to buy)	$19.7917	A	675000	Acquired	2009-02-04	Common Stock (675000)	Direct
2003-08-14	Stock Options (right to buy)	$7.74	A	250000	Acquired	2013-08-14	Common Stock (250000)	Direct

Footnotes

F1: Stock Options are fully vested and exercisable.

F2: Exempt stock option grant that vests over three years. First two years vest at 33%. Third year vests at 34%. Vesting begins twelve months after date of grant (08/14/2003).