| SC 13G | 2009-02-17 | Wanzek Jon L | MASTEC INC | 7,500,001 | 9.9% | EDGAR |
| SC 13G/A | 2009-02-12 | GENDELL JEFFREY L ET AL | MASTEC INC | 661,200 | 1.0% | EDGAR |
| SC 13G/A | 2008-12-19 | WELLS FARGO & CO/MN | MASTEC INC | 0 | - | EDGAR |
| SC 13G | 2008-02-22 | GENDELL JEFFREY L ET AL | MASTEC INC | 618,880 | 0.9% | EDGAR |
| SC 13G/A | 2008-02-14 | FMR LLC | MASTEC INC | 6,133,767 | 9.2% | EDGAR |
| SC 13G | 2008-02-01 | WELLS FARGO & CO/MN | MASTEC INC | 3,912,995 | 5.8% | EDGAR |
| SC 13G/A | 2007-02-14 | FMR CORP | MASTEC INC | 7,690,774 | 11.8% | EDGAR |
| SC 13G/A | 2006-02-14 | FMR CORP | MASTEC INC | 2,812,990 | 5.7% | EDGAR |
| SC 13G/A | 2006-02-14 | BESSEMER GROUP INC | MASTEC INC | 105,500 | 0.2% | EDGAR |
| SC 13G/A | 2006-02-10 | FMR CORP | MASTEC INC | 6,997,590 | 11.3% | EDGAR |
| SC 13G/A | 2006-02-06 | DIMENSIONAL FUND ADVISORS INC | MASTEC INC | 1,964,475 | 4.0% | EDGAR |
| SC 13G | 2005-02-14 | FMR CORP | MASTEC INC | 3,900,090 | 8.0% | EDGAR |
| SC 13G/A | 2005-02-09 | BESSEMER GROUP INC | MASTEC INC | 20,085,497 | 41.4% | EDGAR |
| SC 13G | 2005-02-09 | DIMENSIONAL FUND ADVISORS INC | MASTEC INC | 2,989,250 | 6.2% | EDGAR |
| SC 13D | 2004-06-09 | MASTEC INC | MASTEC INC | 19,730,716 | 39.9% | EDGAR |
| SC 13G | 2004-02-17 | BESSEMER GROUP INC | MASTEC INC | 17,241,247 | 35.8% | EDGAR |
| SC 13G/A | 2004-02-04 | MELLON BANK N A | MASTEC INC | 1,573,182 | 3.3% | EDGAR |
| SC 13G/A | 2003-01-22 | MELLON FINANCIAL CORP | MASTEC INC | 3,958,622 | 8.2% | EDGAR |
| SC 13G/A | 2002-02-08 | MELLON FINANCIAL CORP | MASTEC INC | 5,285,937 | 11.0% | EDGAR |
| SC 13G | 2002-01-25 | MELLON FINANCIAL CORP | MASTEC INC | 4,620,537 | 9.6% | EDGAR |