CATAMARAN CORP

CUSIP: 148887102 Class: COM

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

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

Q2 2015
Shares 36,523 Value ($000) $2,231 Avg Close — Range —
Q1 2015
Shares 24,981 Value ($000) $1,487 Avg Close — Range —
Q4 2014
Shares 2,710 Value ($000) $140 Avg Close — Range —
Q3 2014
Shares 8,964 Value ($000) $378 Avg Close — Range —
Q2 2014
Shares 4,991 Value ($000) $220 Avg Close — Range —
Q4 2013
Shares 13,673 Value ($000) $649 Avg Close — Range —
Q3 2013
Shares 16,151 Value ($000) $742 Avg Close — Range —
Q2 2013
Shares 33,105 Value ($000) $1,613 Avg Close — Range —