AMKOR TECHNOLOGY, INC. — Director's Dealing 2023

May 4, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMKOR TECHNOLOGY, INC. (AMKR)
CIK: 0001047127
Period of Report: 2023-05-01

Reporting Person: KIM JAMES J (Director, 10% Owner, Member of 10% owner group (5))

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2023-05-01	Common Stock	G	5117004	$0.00	Disposed	39251	Direct
2023-05-01	Common Stock	G	3278001	$0.00	Disposed	0	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	49594980	Indirect
Common Stock	1957350	Indirect
Common Stock	7828682	Indirect
Common Stock	1379943	Indirect
Common Stock	2298355	Indirect
Common Stock	164678	Indirect
Common Stock	2985370	Indirect

Footnotes

F1: On May 1, 2023, the Reporting Person transferred 5,117,004 shares of Common Stock of Amkor Technology, Inc. (the "Issuer") to the 2023 Grantor Annuity Trust of James J. Kim dtd. 4/26/23 as a gift. Susan Y. Kim is the sole trustee of the trust.

F2: On May 1, 2023, Agnes C. Kim transferred 3,278,001 shares of the Issuer's Common Stock to the 2023 Grantor Retained Annuity Trust of Agnes C. Kim dtd. 4/26/23 as a gift. Agnes C. Kim is the spouse of the Reporting Person. Susan Y. Kim is the sole trustee of the trust.

F3: 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 ("Section 16"), or for any other purpose.

F4: The Reporting Person is (i) a trustee of trusts for the benefit of his immediate family members which own 13,464,330 shares of the Issuer's Common Stock, (ii) a trustee of a trust which is a controlling member of a limited liability company being treated as a corporation for purposes of Section 16, which limited liability company holds 164,678 shares of the Issuer's Common stock, (iii) a trustee of grantor retained annuity trusts of which he was the settlor and is the sole annuitant which own 2,985,370 shares of the Issuer's Common Stock and (iv) a general partner of a limited partnership which owns 49,594,980 shares of the Issuer's Common Stock. Pursuant to the Form 4 instructions, the Reporting Person is being treated as having a pecuniary interest in all of such shares.