AMKOR TECHNOLOGY INC

Ticker: AMKR CUSIP: 031652100 Class: Common Stock

Cornerstone Investment Partners, LLC's Holding History (CIK: 0001328062)

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

Q4 2020

Shares 10,325 Value ($000) $156 Avg Close $12.70 Range $10.09 - $14.70

Q3 2020

Shares 10,325 Value ($000) $116 Avg Close $11.54 Range $9.98 - $14.72

Q2 2020

Shares 10,325 Value ($000) $127 Avg Close $9.62 Range $6.65 - $12.20

Q1 2020

Shares 11,663 Value ($000) $91 Avg Close $10.13 Range $5.03 - $13.81

Q4 2019

Shares 11,663 Value ($000) $152 Avg Close $11.12 Range $8.40 - $14.21

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2020	10,325	$156	$12.70	$10.09 - $14.70
Q3 2020	10,325	$116	$11.54	$9.98 - $14.72
Q2 2020	10,325	$127	$9.62	$6.65 - $12.20
Q1 2020	11,663	$91	$10.13	$5.03 - $13.81
Q4 2019	11,663	$152	$11.12	$8.40 - $14.21