SALIX PHARMACEUTICALS INC

CUSIP: 795435106 Class: COM

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

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

Q1 2015
Shares 516,177 Value ($000) $89,201 Avg Close — Range —
Q4 2014
Shares 7,606 Value ($000) $874 Avg Close — Range —
Q2 2014
Shares 1,142 Value ($000) $141 Avg Close — Range —
Q1 2014
Shares 4,465 Value ($000) $463 Avg Close — Range —
Q4 2013
Shares 3,322 Value ($000) $299 Avg Close — Range —
Q3 2013
Shares 6,201 Value ($000) $415 Avg Close — Range —