[Form 4] Amkor Technology Inc Insider Trading Activity

Rhea-AI Filing Summary

Form 4 – Carvana Co. (CVNA) filed 01-Aug-2025 shows CEO, Director and 10% owner Ernest C. Garcia III sold Class A shares through two family trusts.

• Total shares sold: 2,700 on 31-Jul-2025.
• Price range: $396.78-$412.77; estimated proceeds ≈ $1.1 million.
• Post-sale holdings: 591,440 shares in the Ernest Irrevocable 2004 Trust III and 691,440 shares in the Multi-Generational Trust III (≈1.28 million combined).
• Sales were executed under a Rule 10b5-1 plan adopted 13-Dec-2024.

No derivatives were traded, and Garcia remains a >10% shareholder. The disposals equal roughly 0.21% of his indirect stake, suggesting limited impact on control but offering a minor sentiment signal for investors monitoring insider activity.

Insights

Securities Analyst

TL;DR: Small 10b5-1 sales by CVNA CEO; immaterial to ownership, modestly negative sentiment.

The 2,700-share disposal (~$1.1 M) is de-minimis relative to Garcia’s remaining 1.28 M indirect shares and likely has negligible effect on voting power or float. Because the trades were pre-scheduled, they carry less adverse signalling than discretionary sales. Still, investors often view any CEO selling, particularly near record prices (~$400+), as a modest bearish data point. With earnings forthcoming, I classify the filing as informational, not fundamentally thesis-changing.

Corporate Governance Analyst

TL;DR: Pre-arranged sale complies with governance best practice; impact neutral.

Use of a 10b5-1 plan illustrates adherence to insider-trading safeguards, reducing litigation risk. The trusts’ transparent reporting and ongoing large holdings suggest continued alignment with minority shareholders. No red flags on control or commitment emerge from this filing.

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).

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^*

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 (6)

3. Date of Earliest Transaction (Month/Day/Year)
07/30/2025

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	07/30/2025		G		2,711,000(1)	D	$0	876,004(2)(3)(4)	I	By James J. Kim 2023 GRAT dtd. 4/26/23
Common Stock	07/30/2025		G		1,738,000(5)	D	$0	560,001(2)(3)(4)	I	By Agnes C. Kim 2023 GRAT dtd. 4/26/23
Common Stock								3,738,492(2)(3)(4)	D
Common Stock								19,484,809(2)(3)(4)	I	By Sujochil, LP
Common Stock								16,710,668(2)(3)(4)	I	By Kim Capital Partners - KCP, LLC
Common Stock								4,418,610(2)(3)(4)	I	By trusts (excl. GRATs)
Common Stock								3,483,000(2)(3)(4)	I	By own GRATs
Common Stock								3,347,890(2)(3)(4)(6)	I	By Sujoda Investments, LP
Common Stock								2,200,000(2)(3)(4)	I	By James J. Kim 2024 GRAT dtd. 8/5/24
Common Stock								1,600,000(2)(3)(4)	I	By Agnes C. Kim 2024 GRAT dtd. 8/5/24

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 July 30, 2025 the 2023 Grantor Retained Annuity Trust of James J. Kim Dated 4/26/2023 distributed 2,711,000 of the Issuer's Common Stock to James J. Kim. The Reporting Person is the sole trustee of the trust.

2. 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 Common Stock of Amkor Technology, Inc. (the "Issuer"); (ii) a trustee of GRATs for the benefit of members of her immediate family which own 5,236,005 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 3,483,000 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;

3. (Continued from Footnote 2) (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 and (vi) as referenced in Footnote 4, a member of Sujoda Management, LLC, which indirectly owns 3,347,890 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.

4. 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.

5. On July 30, the 2023 Grantor Retained Annuity Trust of Agnes C. Kim Dated 4/26/2023 distributed 1,738,000 shares of the Issuer's Common Stock to Agnes C. Kim. The Reporting Person is the sole trustee of the Trust.

6. 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.

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	08/01/2025
	** Signature of Reporting Person	Date
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