AMKOR TECHNOLOGY, INC. — Director's Dealing 2023

Feb 25, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMKOR TECHNOLOGY, INC. (AMKR)
CIK: 0001047127
Period of Report: 2023-02-22

Reporting Person: KIM SUSAN Y (Director, 10% Owner, Member of 10% owner group (10))

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2023-02-22	Common Stock	S	384000	$25.28	Disposed	8797498	Indirect
2023-02-22	Common Stock	S	384000	$25.28	Disposed	8413498	Indirect
2023-02-22	Common Stock	S	384000	$25.28	Disposed	8029498	Indirect
2023-02-22	Common Stock	S	384000	$25.28	Disposed	7645498	Indirect
2023-02-22	Common Stock	S	384000	$25.28	Disposed	7261498	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	6973614	Direct
Common Stock	1867747	Indirect
Common Stock	2660840	Indirect
Common Stock	753232	Indirect
Common Stock	1117623	Indirect
Common Stock	3678298	Indirect
Common Stock	19484809	Indirect
Common Stock	2478325	Indirect
Common Stock	8200000	Indirect

Footnotes

F1: 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.

F2: On February 22, 2023, the Irrevocable Deed of Trust of James J. Kim for Alexandra Kim Panichello dated 12/24/92 transferred 384,000 shares of Common Stock of Amkor Technology, Inc. (the "Issuer") in full payment of the principal and accrued interest of a note payable to James J. Kim by such trust. The Reporting Person and John T. Kim are co-trustees of such trust.

F3: The Reporting Person is (i) a trustee of trusts for the benefit of her immediate family members (other than grantor retained annuity trusts ("GRATs")) which own 7,261,468 shares of the Issuer's Common Stock, (ii) a trustee of GRATs for the benefit of members of her immediate family which own 6,399,442 shares of the Issuer's Common Stock, (iii) a trustee of GRATs of which the Reporting Person was the settlor and is the sole annuitant which own 3,678,298 shares of the Issuer's Common Stock, (iv) a general partner of a limited partnership (Sujochil, LP) which owns 19,484,809 shares of the Issuer's Common Stock,

F4: (Continued from Footnote 3) (v) a manager of limited liability companies being treated as corporations for purposes of Section 16, which own 8,200,000 shares of the Issuer's Common Stock and (vi) as referenced in footnote 9, a member of Sujoda Management, LLC, which indirectly owns 2,478,325 shares of the Issuer's Common Stock. Pursuant to Form 4 instructions, the Reporting Person is being treated as having a pecuniary interest in all of such shares.

F5: On February 22, 2023, the Irrevocable Deed of Trust of James J. Kim for Jacqueline Mary Panichello dated 10/3/94 transferred 384,000 shares of the Issuer's Common Stock in full payment of the principal and accrued interest of a note payable to James J. Kim by such trust. The Reporting Person and John T. Kim are co-trustees of such trust.

F6: On February 22, 2023, the Irrevocable Deed of Trust of James J. Kim for Allyson Lee Kim dated 10/15/01 transferred 384,000 shares of the Issuer's Common Stock in full payment of the principal and accrued interest of a note payable to James J. Kim by such trust. The Reporting Person and John T. Kim are co-trustees of such trust.

F7: On February 22, 2023, the Irrevocable Deed of Trust of James J. Kim for Dylan James Panichello dated 10/15/01 transferred 384,000 shares of the Issuer's Common Stock in full payment of the principal and accrued interest of a note payable to James J. Kim by such trust. The Reporting Person and John T. Kim are co-trustees of such trust.

F8: On February 22, 2023, the Irrevocable Deed of Trust of James J. Kim, Settlor, FBO Jason Lee Kim dated 11/17/03 transferred 384,000 shares of the Issuer's Common Stock in full payment of the principal and accrued interest of a note payable to James J. Kim by such trust. The Reporting Person and John T. Kim are co-trustees of such trust.

F9: The sole general partner of Sujoda Investments, LP is Sujoda Management, LLC. The Reporting Person is one of three members of Sujoda Management, LLC. Sujoda Management, LLC is being treated as a limited partnership for purposes of Section 16, and, pursuant to the Form 4 instructions, the Reporting Person has elected to treat all of the shares of the Issuer's Common Stock owned by Sujoda Investments, LP as beneficially owned by the Reporting Person.