Amkor Technology, Inc. (AMKR) CEO sells 3,221 common shares

Rhea-AI Filing Summary

Amkor Technology, Inc. reported that President and CEO Kevin K. Engel sold 3,221 shares of common stock on July 30, 2026 at $47.00 per share in a sale described as an open market or private transaction. After this trade, he directly holds 9,666 shares of Amkor common stock.

Insider Trade Summary

Net Seller: 3,221 shares

Net Sell 1 txn

Insider Engel Kevin K.

Role President and CEO

Sold 3,221 shs ($151K)

Type	Security	Shares	Price	Value
Sale	Common Stock	3,221	$47.00	$151K

Holdings After Transaction: Common Stock — 9,666 shares (Direct)

Key Figures

Shares sold: 3,221 shares Sale price per share: $47.00 Shares held after transaction: 9,666 shares

3 metrics

Shares sold 3,221 shares Sale of Amkor common stock on July 30, 2026

Sale price per share $47.00 Per-share price for 3,221 shares of common stock sold

Shares held after transaction 9,666 shares Direct holdings of Kevin K. Engel following the sale

Key Terms

Common Stock, open market or private transaction, acquired_disposed_code

3 terms

Common Stock financial

"security_title: "Common Stock" for the reported transaction"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

open market or private transaction financial

"transaction_code_description: "Sale in open market or private transaction""

acquired_disposed_code technical

"acquired_disposed_code: "D" indicating a disposition of shares"

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 07/31/2026 - 04:37 PM Accepted by SEC EDGAR 07/31/2026 - 04:36 PM Learn about SEC filing dates

FAQ

What insider transaction did Amkor Technology (AMKR)'s CEO report?

Amkor Technology’s President and CEO, Kevin K. Engel, reported a sale of 3,221 shares of Amkor common stock on July 30, 2026. The sale was reported as an open market or private transaction at $47.00 per share.

How many Amkor (AMKR) shares did Kevin K. Engel sell and at what price?

Kevin K. Engel sold 3,221 shares of Amkor common stock at a price of $47.00 per share. The transaction is characterized as a sale in an open market or private transaction and was reported as a direct ownership trade.

How many Amkor (AMKR) shares does Kevin K. Engel hold after this sale?

Following the reported sale, Kevin K. Engel directly holds 9,666 shares of Amkor common stock. This post-transaction ownership figure reflects his remaining direct stake after disposing of 3,221 shares on July 30, 2026.

Was Kevin K. Engel's Amkor (AMKR) stock sale made under a Rule 10b5-1 plan?

The filing’s Rule 10b5-1 checkbox is not marked as an affirmative trading plan, indicating the reported sale was not designated as pursuant to a Rule 10b5-1 trading arrangement in this disclosure.

What type of security did Kevin K. Engel trade in this Amkor (AMKR) filing?

The transaction involves Common Stock of Amkor Technology, Inc. Kevin K. Engel reported selling 3,221 shares of this common stock class, with the transaction categorized as a non-derivative security sale in the Form 4 data.

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^*

Engel Kevin K.

(Last) (First) (Middle)

2045 EAST INNOVATION CIRCLE

(Street)

TEMPE ARIZONA 85284

(City) (State) (Zip)

UNITED STATES

(Country)

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		10% Owner
X	Officer (give title below)		Other (specify below)
	President and CEO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/30/2026

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

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

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

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	07/30/2026		S		3,221	D	$47	9,666	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:

Remarks:

	/s/ Mark N. Rogers, Attorney-in-Fact for Kevin Engel	07/31/2026
	** 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.
* Form 4: SEC 1474 (03-26)