AMKOR TECHNOLOGY INC

CUSIP: 31652100 Class: COM

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

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

Q3 2016
Shares 40,516 Value ($000) $394 Avg Close — Range —
Q2 2016
Shares 12,329 Value ($000) $71 Avg Close — Range —
Q1 2016
Shares 13,140 Value ($000) $77 Avg Close — Range —
Q4 2015
Shares 32,773 Value ($000) $199 Avg Close — Range —
Q3 2015
Shares 31,073 Value ($000) $140 Avg Close — Range —
Q2 2015
Shares 24,064 Value ($000) $144 Avg Close — Range —
Q1 2015
Shares 2,888 Value ($000) $26 Avg Close — Range —
Q4 2014
Shares 28,480 Value ($000) $202 Avg Close — Range —
Q3 2014
Shares 15,656 Value ($000) $132 Avg Close — Range —
Q2 2014
Shares 60,040 Value ($000) $671 Avg Close — Range —
Q1 2014
Shares 4,570 Value ($000) $31 Avg Close — Range —
Q4 2013
Shares 12,313 Value ($000) $75 Avg Close — Range —