TARGACEPT INC

CUSIP: 87611R306 Class: CMN

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

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

Q4 2014
Shares 1,652 Value ($000) $4 Avg Close — Range —
Q3 2014
Shares 45,344 Value ($000) $115 Avg Close — Range —
Q2 2014
Shares 54,704 Value ($000) $247 Avg Close — Range —
Q1 2014
Shares 25,860 Value ($000) $123 Avg Close — Range —
Q4 2013
Shares 58,632 Value ($000) $243 Avg Close — Range —
Q3 2013
Shares 14,222 Value ($000) $76 Avg Close — Range —
Q2 2013
Shares 41,270 Value ($000) $176 Avg Close — Range —