AMKOR TECHNOLOGY, INC. — Director's Dealing 2023

Dec 21, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMKOR TECHNOLOGY, INC. (AMKR)
CIK: 0001047127
Period of Report: 2023-12-19

Reporting Person: KIM JAMES J (Director, 10% Owner, Member of 10% owner group (8))

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2023-12-19	Common Stock	M	93	$0.00	Acquired	269345	Direct
2023-12-19	Common Stock	F	93	$33.79	Disposed	269252	Direct
2023-12-19	Common Stock	M	88	$0.00	Acquired	269340	Direct
2023-12-19	Common Stock	F	88	$33.79	Disposed	269252	Direct
2023-12-19	Common Stock	M	78	$0.00	Acquired	269330	Direct
2023-12-19	Common Stock	F	78	$33.79	Disposed	269252	Direct
2023-12-19	Common Stock	G	529650	$0.00	Disposed	1338097	Indirect
2023-12-19	Common Stock	G	529650	$0.00	Acquired	798902	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2023-12-19	Restricted Stock Units	$	M	93	Disposed		Common Stock (93)	Direct
2023-12-19	Restricted Stock Units	$	M	88	Disposed		Common Stock (88)	Direct
2023-12-19	Restricted Stock Units	$	M	78	Disposed		Common Stock (78)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1957350	Indirect
Common Stock	7828682	Indirect
Common Stock	164678	Indirect

Footnotes

F1: The reported transaction involved the withholding of 93 shares of common stock of Amkor Technology, Inc. (the "Issuer") issuable upon the early vesting of an equal number of restricted stock units ("RSUs") to pay taxes associated with the Reporting Person's retirement eligibility status.

F2: The reported transaction involved the withholding of 88 shares of the Issuer's Common Stock issuable upon the early vesting of an equal number of RSUs to pay taxes associated with the Reporting Person's retirement eligibility status.

F3: The reported transaction involved the withholding of 78 shares of the Issuer's Common Stock issuable upon the early vesting of an equal number of RSUs to pay taxes associated with the Reporting Person's retirement eligibility status.

F4: On December 19, 2023, the James J. Kim 2021 Qualified Annuity Trust U/A dated 12/15/2021 distributed 529,650 of the Issuer's Common Stock to the Reporting Person.

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

F6: The Reporting Person is (i) a trustee of grantor retained annuity trusts of which he was the settlor and is the sole annuitant which own 1,338,097 shares of the Issuer's Common Stock, (ii) a trustee of trusts for the benefit of his immediate family members which own 9,786,032 shares of the Issuer's Common Stock and (iii) 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. Pursuant to the Form 4 instructions, the Reporting Person is being treated as having a pecuniary interest in all of such shares.

F7: Reflects an adjustment of 88 RSUs incorrectly attributed to the Reporting Person on the Form 4 filed on behalf of the Reporting Person on February 24, 2023 that had been surrendered for the Reporting Person's retirement eligibility withholding.