Agnes C. Kim - 01 Aug 2025 Form 4 Insider Report for AMKOR TECHNOLOGY, INC. (AMKR)

Role: Member of 10% owner group (3)
Signature: /s/ Brian D. Short, Attorney-in-Fact for Agnes C. Kim
Issuer symbol: AMKR
Transactions as of: 01 Aug 2025
Net transactions value: -$9,648,720
Form type: 4
Filing time: 05 Aug 2025, 19:30:36 UTC
Previous filing: 01 Aug 2025
Next filing: 24 Nov 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
KIM AGNES C	Member of 10% owner group (3)	C/O SIANA CARR O'CONNOR & LYNAM, 1500 EAST LANCASTER AVENUE, PAOLI	/s/ Brian D. Short, Attorney-in-Fact for Agnes C. Kim	05 Aug 2025	0001158840

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AMKR	Common Stock	Sale	$9,648,720	-441,589	-3.5%	$21.85	12,290,281	01 Aug 2025	By Spouse	F1, F2
holding	AMKR	Common Stock						1,833,000	01 Aug 2025	Direct

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	On August 1, 2025, James J. Kim distributed 441,589 shares of the Common Stock of Amkor Technology, Inc. (the "Issuer") to Sujoda Investments, LP pursuant to the terms of a transaction between members of the Kim family group
F2	James J. Kim is the spouse of the Reporting Person. 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.

Content

On August 1, 2025, James J. Kim distributed 441,589 shares of the Common Stock of Amkor Technology, Inc. (the "Issuer") to Sujoda Investments, LP pursuant to the terms of a transaction between members of the Kim family group

James J. Kim is the spouse of the Reporting Person. 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.

Remarks:

(3) The Reporting Person states that the filing of this Form 4 shall not be deemed an admission that the Reporting Person is the beneficial owner of the reported securities owned by the other members of the group, for the purpose of Section 16, or for any other purpose.