Amkor CFO sells 1,000 shares at $49.05 each

Amkor Technology’s CFO reported a small Rule 10b5-1 planned sale of 1,000 shares, retaining over 134,000 shares afterward.

Rhea-AI Filing Summary

AMKOR TECHNOLOGY, INC. (AMKR) reported that its Chief Financial Officer, Megan Faust, sold 1,000 shares of common stock on September 8, 2026 in an open-market or private transaction at $49.05 per share. Following this sale, she held 134,105 shares directly. The sale was effected under a Rule 10b5-1 trading plan adopted by the reporting person.

Insider Trade Summary 10b5-1

Net Seller: 1,000 shares

Net Sell 1 txn

Insider Faust Megan

Role CFO

Sold 1,000 shs ($49K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	1,000	$49.05	$49K

Holdings After Transaction: Common Stock — 134,105 shares (Direct)

Footnotes (1)

1. F1. The sale reported in the Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 17, 2026.

Key Figures

Shares sold: 1,000 shares Sale price per share: $49.05 per share Shares held after transaction: 134,105 shares

3 metrics

Shares sold 1,000 shares Common stock sale reported for September 8, 2026

Sale price per share $49.05 per share Price for the 1,000 common shares sold on September 8, 2026

Shares held after transaction 134,105 shares Direct holdings of CFO Megan Faust after the reported sale

Key Terms

Rule 10b5-1 trading plan, sale in open market or private transaction, Common Stock

3 terms

Rule 10b5-1 trading plan regulatory

"The sale reported in the Form 4 was effected pursuant to a Rule 10b5-1 trading plan"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

sale in open market or private transaction financial

"Transaction code description indicates a sale in open market or private transaction"

Common Stock financial

"The transaction involved Common Stock of Amkor Technology, Inc."

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.

FAQ

What insider transaction did AMKR’s CFO report on this Form 4?

The CFO, Megan Faust, reported selling 1,000 shares of Amkor Technology common stock on September 8, 2026 in a sale in open market or private transaction at a price of $49.05 per share.

How many AMKR shares does the CFO hold after the reported sale?

After the transaction, CFO Megan Faust directly held 134,105 shares of Amkor Technology common stock, as stated in the Form 4’s post-transaction holdings field.

Was the AMKR CFO’s share sale made under a Rule 10b5-1 trading plan?

Yes. The Form 4 footnote states that the sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person, indicating the trades were pre-arranged under that plan.

What price did the AMKR CFO receive per share in the reported sale?

The Form 4 reports that the 1,000 shares of Amkor Technology common stock were sold at a price of $49.05 per share, described as a sale in an open market or private transaction.

What role does the reporting person hold at AMKR?

The reporting person on this Form 4 is Megan Faust, who is identified as the Chief Financial Officer (CFO) of Amkor Technology, Inc.

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

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Available on EDGAR 09/10/2026 - 04:37 PM Accepted by SEC EDGAR 09/10/2026 - 04:37 PM Learn about SEC filing dates

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).

X

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^*

Faust Megan

(Last) (First) (Middle)

2045 E 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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CFO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/08/2026

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	09/08/2026		S(1)		1,000	D	$49.05	134,105	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. The sale reported in the Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 17, 2026.

Remarks:

	/s/ Mark N. Rogers, Attorney-in-Fact for Megan Faust	09/10/2026
	** 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)