AMKOR TECHNOLOGY, INC. — Director's Dealing 2022

Jun 30, 2022

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMKOR TECHNOLOGY, INC. (AMKR)
CIK: 0001047127
Period of Report: 2022-06-23

Reporting Person: KIM SUSAN Y (Director, 10% Owner, Member of 10% owner group (6))

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2022-06-23	Common Stock	G	274900	$0.00	Disposed	753232	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2022-06-27	Restricted Stock Units	$	A	24.5516	Acquired		Common Stock (24.5516)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	5375484	Direct
Common Stock	3328065	Indirect
Common Stock	1401123	Indirect
Common Stock	2675911	Indirect
Common Stock	2353347	Indirect
Common Stock	4224548	Indirect
Common Stock	9181498	Indirect
Common Stock	19484809	Indirect
Common Stock	2478325	Indirect
Common Stock	8200000	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Restricted Stock Units	$		Common Stock ()	8706	Direct

Footnotes

F1: As previously reported in a Form 4 filed by the Reporting Person on May 19, 2022 (the "Original Form 4"), 8,706 shares of Amkor Technology, Inc. (the "Issuer") common stock underlying time-vested restricted stock units (the "RSUs") were granted to the Reporting Person on May 17, 2022. Pursuant to the award agreement for the RSUs, dividend equivalent units ("DEUs") accrue with respect to the RSUs when and as dividends are paid on the Issuer's common stock. In the Original Form 4, the RSUs were incorrectly reported in Table I. Table II, Column 9 of this Form 4 has been adjusted to include the RSUs and reflects the proper number of RSUs beneficially owned by the Reporting Person as of the filing date of this Form 4.

F2: On June 23, 2022, the John T. Kim 2018 Irrevocable Trust dated February 6, 2018 distributed 274,900 shares of the Issuer's common stock to John T. Kim. The Reporting Person is a trustee of the trust. John T. Kim and the Reporting Person are brother and sister.

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 9,181,498 shares of the Issuer's common stock, (ii) a trustee of GRATS created by members of her immediate family which own 10,511,678 shares of the Issuer's common stock, (iii) a trustee of GRATS of which she was the settlor and is the sole annuitant which own 4,224,548 shares of the Issuer's common stock, (iv) a general partner of a limited partnership which owns 19,484,809 shares of the Issuer's common stock, (v) a manager of limited liability companies ("LLCs") being treated as corporations for purposes of Section 16 of the Securities Exchange Act of 1934, as amended ("Section 16"), which own 8,200,000 shares of the Issuer's common stock, and (vi) a manager of an LLC being treated as a limited partnership for purposes of Section 16 which owns 2,478,325 shares of the Issuer's common stock.

F4: Pursuant to the Form 4 instructions, the Reporting Person is being treated as having a pecuniary interest in all of these shares. 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 or for any other purpose.

F5: Represents DEUs accrued with respect to the RSUs upon the Issuer's payment of a dividend on June 27, 2022. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued.