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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1047127	Amkor Technology Inc.	AMKR	Semiconductors & Related Devices (3674)	231722724

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1596796	Jean Marie Guillaume Rutten	2045 East Innovation Circle Tempe AZ 85284	President And Ceo	Yes	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Acquisiton	2020-11-16	15,000	$9.86	390,000	No	4	M	Direct
Common Stock	Disposition	2020-11-16	2,787	$13.43	387,213	No	4	S	Direct
Common Stock	Disposition	2020-11-16	12,213	$13.53	375,000	No	4	S	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	M	Direct
No	4	S	Direct
No	4	S	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Employee Stock Option (Right-to-Buy)	Disposition	2020-11-16	15,000	$0.00	15,000	$9.86

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
53,412	2018-02-27	2027-02-27	No	4	M	Direct

Footnotes

The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 12, 2020.
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from 13.33 to 13.52.
The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from 13.485 to 13.55.
This stock option was granted on February 27, 2017 and will vest over four years as follows: 25% on the first anniversary of the grant date and 1/16 of the option will vest each quarter thereafter so that at the end of the fourth year, 100% of the option will be vested.