[Form 4] AMKOR TECHNOLOGY, INC. Insider Trading Activity

Rhea-AI Filing Summary

Amkor Technology, Inc. insider reports a large share distribution. A reporting person affiliated with AMKR disclosed a transfer of 965,000 shares of Amkor Technology common stock on 11/20/2025. The transaction was coded "G," indicating a bona fide gift or similar transfer, at a reported price of $0 per share. After this distribution, the reporting person directly beneficially owns 1,235,000 shares.

The shares were distributed to the James J. Kim 2018-1 Qualified Annuity Trust under an agreement dated 8/30/18, for which James J. Kim and Susan Y. Kim serve as co‑trustees. The reporting person states that beneficial ownership of the securities is disclaimed except to the extent of any pecuniary interest.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
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hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

2024 Grantor Retained Annuity Trust of James J. Kim dtd. 8/5/2024

(Last) (First) (Middle)

C/O SIANA CARR O'CONNOR & LYNAM

1500 EAST LANCASTER AVENUE

(Street)

PAOLI PA 19301-9713

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
AMKOR TECHNOLOGY, INC. [ AMKR ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
	Officer (give title below)	X	Other (specify below)
			Member of 10% owner group (2)

3. Date of Earliest Transaction (Month/Day/Year)
11/20/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	11/20/2025		G		965,000(1)	D	$0	1,235,000	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. On November 20, 2025, the Reporting Person distributed 965,000 shares of the Common Stock of the Amkor Technology, Inc. to the James J. Kim 2018-1 Qualified Annuity Trust U/A dated 8/30/18. James J. Kim and Susan Y. Kim are co-trustees of the trust.

Remarks:

2. 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.

	/s/ Brian D. Short, Attorney-in-Fact	11/24/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did AMKR report in this Form 4?

The filing reports that a related party distributed 965,000 shares of Amkor Technology, Inc. common stock on 11/20/2025 in a transaction coded "G," which indicates a gift or similar transfer.

How many AMKR shares does the reporting person hold after the transaction?

Following the reported transaction, the filing shows the reporting person directly beneficially owns 1,235,000 shares of Amkor Technology, Inc. common stock.

Who received the 965,000 AMKR shares in the reported transfer?

The filing states that 965,000 shares of Amkor common stock were distributed to the James J. Kim 2018-1 Qualified Annuity Trust under an agreement dated 8/30/18, with James J. Kim and Susan Y. Kim as co‑trustees.

What does transaction code "G" mean in this AMKR Form 4?

Transaction code "G" in a Form 4 indicates a bona fide gift or similar transfer of securities, rather than an open-market purchase or sale.

Does the reporting person claim full beneficial ownership of the transferred AMKR shares?

No. The filing states that the reporting person disclaims beneficial ownership of the securities except to the extent of any pecuniary interest.

Is the reporting person related to AMKR as a major shareholder or insider?

The form indicates the reporting person is an "Other" related party and a member of a 10% owner group, reflecting a significant ownership relationship with Amkor Technology, Inc.