SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person* Engel Kevin (Last) (First) (Middle) 2045 EAST INNOVATION CIRCLE (Street) TEMPE AZ 85284 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 02/07/2023	3. Issuer Name and Ticker or Trading Symbol AMKOR TECHNOLOGY, INC. [ AMKR ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) Executive Vice President	5. 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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	525	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Restricted Stock Units	(1)	(1)	Common Stock	2,451	$0.00	D
Restricted Stock Units	(2)	(2)	Common Stock	3,761	$0.00	D
Employee Stock Option (Right-to-Buy)	02/15/2020(3)	02/15/2029	Common Stock	6,250	$9.48	D

Explanation of Responses:

1. Represents shares of time-vested restricted stock units (the "2021 RSUs") granted pursuant to the Amkor Technology, Inc. (the "Issuer") Second Amended and Restated 2007 Equity Incentive Plan, as amended, and the related award agreement on February 11, 2021 (the "2021 RSU Grant Date"). The 2021 RSUs vest in four equal annual installments beginning on the first anniversary of the 2021 RSU Grant Date.

2. Represents shares of time-vested restricted stock units (the "2022 RSUs") granted pursuant to the Issuer's 2021 Equity Incentive Plan, as amended, and the related award agreement on February 24, 2022 (the "2022 RSU Grant Date"). The 2022 RSUs vest in four equal annual installments beginning on the first anniversary of the 2022 RSU Grant Date.

3. This stock option (the "Option Shares") to acquire 100,000 shares of the Issuer's common stock was granted on February 15, 2019 (the "Option Grant Date") and vests over four years as follows: (i) with respect to 25% of the Option Shares, on the first anniversary of the Option Grant Date; (ii) with respect to the remainder of the Option Shares, in equal quarterly installments thereafter, such that 100% of the Option will vest on the fourth anniversary of the Option Grant Date.

Remarks:

EXHIBIT LIST: Exhibit 24-Power of Attorney

	Mark N. Rogers, Attorney-in-Fact for Kevin Engel	02/14/2023
	** 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 5 (b)(v).
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