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 Estimated average burden 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).

1. Name and Address of Reporting Person* KIM SUSAN Y (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) X Director X 10% Owner Officer (give title below) X Other (specify below) Member of 10% owner group (7)
	3. Date of Earliest Transaction (Month/Day/Year) 05/14/2024
	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
	Rule 10b5-1(c) Transaction Indication Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

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	05/14/2024		M		8,571(1)	A	$0(1)	4,416,475(1)	D
Common Stock								5,117,004(2)(3)(4)	I	By James J. Kim 2023 GRAT dtd. 4/26/23
Common Stock								3,278,001(2)(3)(4)	I	By Agnes C. Kim 2023 GRAT dtd. 4/26/23
Common Stock								1,338,097(2)(3)(4)	I	By James J. Kim 2021 GRAT dtd 12/15/21
Common Stock								2,500,000(2)(3)(4)	I	By own GRATs
Common Stock								4,418,610(2)(3)(4)	I	By trusts (excl. GRATs)
Common Stock								19,484,809(2)(3)(4)	I	By Sujochil, LP
Common Stock								2,478,325(2)(3)(4)(5)	I	By Sujoda Investments, LP
Common Stock								16,710,668(2)(3)(4)	I	By Kim Capital Partners - KPC, LLC
Common Stock								39,594,980(2)(3)(4)	I	By 915 Investments, LP

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
Restricted Stock Units	(1)	05/14/2024		M			8,571.0421(1)	(1)	(1)	Common Stock	8,571.0421(1)	$0	0	D
Restricted Stock Units	(6)	05/14/2024		A		5,855		(6)	(6)	Common Stock	5,855	$0	5,855	D

Explanation of Responses:

1. On May 16, 2023, the Reporting Person was granted 8,478 time-vested restricted stock units ("RSUs") pursuant to the Amkor Technology, Inc. (the "Issuer") 2021 Equity Incentive Plan, as amended (the "Plan"), and the applicable award agreement (the "2023 RSUs"). In connection with the vesting of the 2023 RSUs on May 14, 2024: (i) 0.0421 of the 2023 RSUs, which had accrued as dividend equivalent units ("DEUs") with each DEU representing an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2023 RSUs, including 93 DEUs, converted into Common Stock of the Issuer on a one-for-one basis.

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.

3. The Reporting Person is (i) a trustee of trusts for the benefit of her immediate family members (other than grantor retained annuity trusts ("GRATs")) which own 4,418,610 shares of the Issuer's Common Stock; (ii) a trustee of GRATs for the benefit of members of her immediate family which own 9,733,102 shares of the Issuer's Common Stock; (iii) a trustee of GRATs of which the Reporting Person was the settlor and is the sole annuitant which own 2,500,000 shares of the Issuer's Common Stock; (iv) a general partner of a limited partnership (Sujochil, LP) which owns 19,484,809 shares of the Issuer's Common Stock;

4. (Continued from Footnote 3) (v) a manager of a limited liability company being treated as a corporation for purposes of Section 16 which owns 16,710,668 shares of the Issuer's Common Stock; (vi) as referenced in Footnote 5, a member of Sujoda Management, LLC, which indirectly owns 2,478,325 shares of the Issuer's Common Stock and (vii) a general partner of a limited partnership which owns 39,594,980 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.

5. The sole general partner of Sujoda Investments, LP is Sujoda Management, LLC. The Reporting Person is one of three members of Sujoda Management, LLC. Sujoda Management, LLC is being treated as a limited partnership for purposes of Section 16, and, pursuant to the Form 4 instructions, the Reporting Person has elected to treat all of the shares of the Issuer's Common Stock owned by Sujoda Investments, LP as beneficially owned by the Reporting Person.

6. Represents shares of Common Stock underlying RSUs granted on May 14, 2024 (the "Grant Date") pursuant to the Plan (the "2024 RSUs"). Subject to the terms and conditions of the applicable award agreement, the 2024 RSUs may be converted into Common Stock of the Issuer on a one-for-one basis and will vest in full on the earlier of the first anniversary of the Grant Date or the date of the Issuer's first annual meeting of stockholders immediately following the Grant Date. The 2024 RSUs were awarded for no consideration other than the Reporting Person's service as a director of the Issuer.

Remarks:

(7) 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.

	Mark N. Rogers, Attorney-in-Fact for Susan Y. Kim	05/16/2024
	** 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).
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