AMKOR TECHNOLOGY, INC. — Director's Dealing 2021

May 4, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMKOR TECHNOLOGY, INC. (AMKR)
CIK: 0001047127
Period of Report: 2021-05-03

Reporting Person: KIM JOHN T (10% Owner, Exhibit 99.1)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-05-03	Common Stock	X	20000	$6.46	Acquired	9650224	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-05-03	Stock option (right to buy)	$6.46	X	20000	Disposed	2021-05-03	Common Stock (20000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	25674640	Indirect
Common Stock	15087774	Indirect

Footnotes

F1: On May 3, 2021, John T. Kim exercised options to purchase 20,000 shares of the Issuer's Common Stock.

F2: Includes options to acquire 80,000 shares of the Issuer's Common stock.

F3: The reporting person is one of two general partners of a limited partnership that owns 19,484,809 shares of the Issuer's Common Stock and one of three members of a limited liability company that is the general partner of a limited partnership that owns 6,189,831 shares of the Issuer's Common Stock.

F4: The reporting person is one of two trustees of various trusts for the benefit of his descendants, which trusts own 15,087,774 shares of the Issuer's Common Stock.

F5: The reporting person disclaims beneficial ownership of these securities, except to the extent of the reporting person's pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities, except to the extent of the reporting person's pecuniary interest therein, for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.