AMKOR TECHNOLOGY, INC. — Director's Dealing 2021

Dec 17, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMKOR TECHNOLOGY, INC. (AMKR)
CIK: 0001047127
Period of Report: 2021-12-15

Reporting Person: Rutten Guillaume Marie Jean (Director, President and CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-12-15	Common Stock	M	10000	$14.17	Acquired	345000	Direct
2021-12-15	Common Stock	S	25000	$22.05	Disposed	320000	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-12-15	Employee Stock Option (Right-to-Buy)	$14.17	M	10000	Disposed	2030-07-30	Common Stock (10000)	Direct

Footnotes

F1: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 13, 2021.

F2: This stock option (the "Option") to acquire 375,000 shares of the Issuer's common stock was granted on July 30, 2020 (the "Grant Date") and will vest in equal quarterly installments over three years, such that 100% of the Option will be vested on the third anniversary of the Grant Date.