PARKER DRILLING CO

CUSIP: 701081AT8 Class: CORP

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

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

Q4 2013
Shares 575,000 Value ($000) $610 Avg Close — Range —
Q3 2013
Shares 575,000 Value ($000) $615 Avg Close — Range —
Q2 2013
Shares 575,000 Value ($000) $608 Avg Close — Range —