ACETO CORP

CUSIP: 4446100 Class: COM

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

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

Q3 2016
Shares 1,000 Value ($000) $19 Avg Close — Range —
Q4 2015
Shares 228 Value ($000) $6 Avg Close — Range —
Q4 2014
Shares 48 Value ($000) $1 Avg Close — Range —
Q3 2014
Shares 148 Value ($000) $3 Avg Close — Range —
Q3 2013
Shares 1,882 Value ($000) $29 Avg Close — Range —