CORNERSTONE CHEMICAL CO

CUSIP: 21925AAB1 Class: CORP

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

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

Q4 2014
Shares 2,000,000 Value ($000) $2,040 Avg Close — Range —
Q3 2014
Shares 2,000,000 Value ($000) $2,100 Avg Close — Range —
Q2 2014
Shares 2,000,000 Value ($000) $2,120 Avg Close — Range —
Q1 2014
Shares 2,000,000 Value ($000) $2,120 Avg Close — Range —
Q4 2013
Shares 2,000,000 Value ($000) $2,105 Avg Close — Range —
Q3 2013
Shares 2,000,000 Value ($000) $2,095 Avg Close — Range —
Q2 2013
Shares 2,000,000 Value ($000) $2,100 Avg Close — Range —