Company:  MASTEC INC (MTZ)
Form Type:  4
Filing Date:  3/21/2012 
CIK:  0000015615 
Address:  800 S. DOUGLAS ROAD, 12TH FLOOR 
City, State, Zip:  CORAL GABLES, Florida 33134 
Telephone:  305-599-1800 
Fiscal Year:  12/31 
Last Trade
Last Trade: 
$31.83  
Change: 
-0.64 (-1.97%)  
Trade Time: 
01:12 PM EST  
Market Cap: 
$2.45B
Description of Business
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  FORM 4
    NAME AND TITLE
    NON DERIVATIVE SECURITIES
    DERIVATIVE SECURITIES
    REPORTING OWNERS
    SIGNATURES