AMKOR TECHNOLOGY INC

Ticker: AMKR CUSIP: 031652100 Class: Common Stock

SUMMIT SECURITIES GROUP LLC's Holding History (CIK: 0001531593)

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

Q4 2025

Shares 2,216 Value ($000) $87 Avg Close $35.54 Range $28.11 - $47.28

Q2 2025

Shares 3,405 Value ($000) $71 Avg Close $18.29 Range $13.89 - $21.19

Q1 2025

Shares 500 Value ($000) $9 Avg Close $22.28 Range $17.44 - $27.31

Q3 2016

Shares 23,654 Value ($000) $230 Avg Close $7.46 Range $5.13 - $9.17

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	2,216	$87	$35.54	$28.11 - $47.28
Q2 2025	3,405	$71	$18.29	$13.89 - $21.19
Q1 2025	500	$9	$22.28	$17.44 - $27.31
Q3 2016	23,654	$230	$7.46	$5.13 - $9.17