CELL THERAPEUTICS INC

CUSIP: 150934883 Class: COM NPV NEW 2012

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

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

Q1 2014
Shares 135,176 Value ($000) $460 Avg Close — Range —
Q4 2013
Shares 33,223 Value ($000) $64 Avg Close — Range —
Q3 2013
Shares 98,941 Value ($000) $162 Avg Close — Range —
Q2 2013
Shares 13,740 Value ($000) $14 Avg Close — Range —