MASTEC INC

CUSIP: 576323AL3 Class: CNV

WHITEBOX ADVISORS LLC's Holding History (CIK: 0001257391)

Note: Option positions (PUT/CALL) are excluded.

Q1 2014
Shares 9,500,000 Value ($000) $26,143 Avg Close — Range —
Q4 2013
Shares 9,500,000 Value ($000) $19,754 Avg Close — Range —
Q3 2013
Shares 9,500,000 Value ($000) $18,536 Avg Close — Range —
Q2 2013
Shares 9,500,000 Value ($000) $20,003 Avg Close — Range —