QUESTCOR PHARMACEUTICALS INC

CUSIP: 74835Y101 Class: COM

D. E. Shaw & Co., Inc.'s Holding History (CIK: 0001009207)

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

Q2 2014
Shares 524,788 Value ($000) $48,538 Avg Close — Range —
Q1 2014
Shares 130,768 Value ($000) $8,491 Avg Close — Range —
Q4 2013
Shares 31,398 Value ($000) $1,710 Avg Close — Range —
Q3 2013
Shares 116,465 Value ($000) $6,755 Avg Close — Range —
Q2 2013
Shares 148,112 Value ($000) $6,734 Avg Close — Range —