MASTEC INC

CUSIP: 576323AM1 Class: CNV

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

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

Q4 2013
Shares 7,823,000 Value ($000) $16,756 Avg Close — Range —
Q3 2013
Shares 7,803,000 Value ($000) $15,611 Avg Close — Range —
Q2 2013
Shares 5,577,000 Value ($000) $12,032 Avg Close — Range —