MASTEC INC — Director's Dealing 2007

Jun 20, 2007

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MASTEC INC (MTZ)
CIK: 0000015615
Period of Report: 2007-06-20

Reporting Person: SHANFELTER AUSTIN J (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2007-06-20	Common Stock	S	1700	$14.67	Disposed	130649	Direct
2007-06-20	Common Stock	S	500	$14.69	Disposed	130149	Direct
2007-06-20	Common Stock	S	1700	$14.70	Disposed	128449	Direct
2007-06-20	Common Stock	S	200	$14.72	Disposed	128249	Direct
2007-06-20	Common Stock	S	600	$14.73	Disposed	127649	Direct
2007-06-20	Common Stock	S	200	$14.74	Disposed	127449	Direct
2007-06-20	Common Stock	S	1200	$14.75	Disposed	126249	Direct
2007-06-20	Common Stock	S	800	$14.76	Disposed	125449	Direct
2007-06-20	Common Stock	S	800	$14.77	Disposed	124649	Direct
2007-06-20	Common Stock	S	1100	$14.78	Disposed	123549	Direct
2007-06-20	Common Stock	S	2000	$14.8	Disposed	121549	Direct
2007-06-20	Common Stock	S	2000	$14.81	Disposed	119549	Direct
2007-06-20	Common Stock	S	1800	$14.82	Disposed	117749	Direct
2007-06-20	Common Stock	S	1400	$14.83	Disposed	116349	Direct
2007-06-20	Common Stock	S	200	$14.84	Disposed	116149	Direct
2007-06-20	Common Stock	S	800	$14.85	Disposed	115349	Direct
2007-06-20	Common Stock	S	1600	$14.86	Disposed	113749	Direct
2007-06-20	Common Stock	S	300	$14.87	Disposed	113449	Direct
2007-06-20	Common Stock	S	700	$14.88	Disposed	112749	Direct
2007-06-20	Common Stock	S	700	$14.89	Disposed	112049	Direct
2007-06-20	Common Stock	S	200	$14.90	Disposed	111849	Direct
2007-06-20	Common Stock	S	400	$14.91	Disposed	111449	Direct
2007-06-20	Common Stock	S	400	$14.92	Disposed	111049	Direct
2007-06-20	Common Stock	S	100	$14.95	Disposed	110949	Direct
2007-06-20	Common Stock	S	100	$14.97	Disposed	110849	Direct
2007-06-20	Common Stock	S	300	$14.98	Disposed	110549	Direct
2007-06-20	Common Stock	S	300	$14.99	Disposed	110249	Direct
2007-06-20	Common Stock	S	200	$15.00	Disposed	110049	Direct
2007-06-20	Common Stock	S	2700	$14.79	Disposed	107349	Direct