AMKOR TECHNOLOGY, INC. — Director's Dealing 2024

Feb 27, 2024

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMKOR TECHNOLOGY, INC. (AMKR)
CIK: 0001047127
Period of Report: 2024-02-23

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
2024-02-23	Common Stock	M	2599	—	Acquired	813838	Direct
2024-02-23	Common Stock	F	1051	$30.59	Disposed	812787	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2024-02-23	Restricted Stock Units	$0	M	2599	Disposed		Common Stock (2599)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	7828682	Indirect
Common Stock	164678	Indirect
Common Stock	1957350	Indirect
Common Stock	715000	Indirect
Common Stock	1338097	Indirect

Footnotes

F1: The transaction represents shares withheld by Amkor Technology, Inc. (the "Issuer") in connection with the vesting of certain restricted stock units ("RSUs") granted to the Reporting Person on February 24,
2022 (the "Grant Date") pursuant to the Issuer's 2021 Equity Incentive Plan, as amended, and the related award agreement. These shares were withheld to satisfy the Reporting Person's tax withholding
obligations. The Issuer will pay these taxes on behalf of the Reporting Person

F2: 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.

F3: 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.

F4: On the Grant Date, the Reporting Person was granted 10,748 RSUs which vest in four equal annual installments beginning on the first anniversary of the Grant Date.