FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * JOHNSON JULIA L   2. Issuer Name and Ticker or Trading Symbol MASTEC INC [MTZ] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 1650 SUMMIT LAKE DRIVE, SUITE 101-A 3. Date of Earliest Transaction (Month/Day/Year) 06/01/2005 (Street) TALLAHASSEE, FL 32317 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock               9,941 D

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Non-Qualified Stock Option (right to buy) (1)

$ 8.46

06/01/2005

A

20,000

06/01/2006(2)

06/01/2015

Common Stock

20,000

$ 0

20,000

D

Non-Qualified Stock Option (right to buy)

$ 4.86

06/02/2004(3)

06/02/2013

Common Stock

7,500

7,500

D

Non-Qualified Stock Option (right to buy)

$ 5.775

02/06/2003(4)

02/06/2012

Common Stock

45,000

45,000

D

Non-Qualified Stock Option (right to buy) (1)

$ 8.8

12/01/2005(5)

12/01/2014

Common Stock

7,500

7,500

D

Non-Qualified Stock Option (right to buy)

$ 13.87

12/16/2004(6)

12/16/2013

Common Stock

30,000

30,000

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
JOHNSON JULIA L 1650 SUMMIT LAKE DRIVE SUITE 101-A TALLAHASSEE, FL 32317	X

Signatures

By: /s/ Michael G. Nearing For: Julia L. Johnson		06/02/2005
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Formula stock option grant pursuant to MasTec, Inc. Amended and Restated 2003 Plan for Non-Employees for no cash consideration.
(2)	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 (06/01/2005).
(3)	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).
(4)	Exempt stock option granted under the MasTec, Inc. 1994 Stock Incentive Plan which vests over three years in equal installments beginning 12 months from the date of grant (02-06-02).
(5)	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.
(6)	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).

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