AMKOR TECHNOLOGY, INC. — Director's Dealing 2023

Feb 15, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: AMKOR TECHNOLOGY, INC. (AMKR)
CIK: 0001047127
Period of Report: 2023-02-10

Reporting Person: KIM AGNES C (Member of 10% owner group (4))

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2023-02-10	Common Stock	M	2630	$0.00	Acquired	69410938	Indirect
2023-02-10	Common Stock	F	1081	$27.60	Disposed	69409857	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2023-02-10	Restricted Stock Units	$0.00	M	2630	Disposed		Common Stock (2630)	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	2610776	Direct

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: The transaction represents shares of Common Stock of Amkor Technology, Inc. (the "Issuer") withheld by the Issuer in connection with the vesting of certain restricted stock units ("RSUs") granted to the Reporting Person's spouse on February 11, 2021 (the "Grant Date") pursuant to the Issuer's Second Amended and Restated 2007 Equity Incentive Plan, as amended, and the related award agreement. The shares were withheld to satisfy tax withholding obligations of the Reporting Person's spouse. The Issuer will pay these taxes on behalf of the Reporting Person's spouse.

F3: On the Grant Date, the Reporting Person's spouse was granted 10,893 RSUs which vest in four equal annual installments beginning on the first anniversary of the Grant Date.