ACURA PHARMACEUTICALS INC

CUSIP: 00509L703 Class: CMN

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

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

Q2 2015
Shares 539 Value ($000) $1 Avg Close — Range —
Q1 2015
Shares 676 Value ($000) $1 Avg Close — Range —
Q4 2014
Shares 876 Value ($000) $0 Avg Close — Range —
Q1 2014
Shares 2,276 Value ($000) $3 Avg Close — Range —
Q4 2013
Shares 476 Value ($000) $1 Avg Close — Range —
Q3 2013
Shares 5,076 Value ($000) $10 Avg Close — Range —
Q2 2013
Shares 4,672 Value ($000) $9 Avg Close — Range —