QUESTCOR PHARMACEUTICALS INC

CUSIP: 74835Y101 Class: COM

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q2 2014
Shares 21,038 Value ($000) $1,946 Avg Close — Range —
Q4 2013
Shares 110,711 Value ($000) $6,028 Avg Close — Range —
Q3 2013
Shares 25,141 Value ($000) $1,458 Avg Close — Range —