ALLEGHENY TECHNOLOGIES INC

CUSIP: 01741RAD4 Class: CNV

ADVENT CAPITAL MANAGEMENT /DE/'s Holding History (CIK: 0001097278)

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

Q1 2014
Shares 25,106,000 Value ($000) $25,644 Avg Close — Range —
Q4 2013
Shares 42,663,000 Value ($000) $44,021 Avg Close — Range —
Q3 2013
Shares 31,057,000 Value ($000) $32,285 Avg Close — Range —
Q2 2013
Shares 35,252,000 Value ($000) $36,415 Avg Close — Range —