Statement of Changes in Beneficial Ownership (4)

FORM 4 [ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person ^* KIM SUSAN Y	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) See Exhibit 99.1
(Last) (First) (Middle) C/O SIANA CARR O'CONNOR & LYNAM,, 1500 EAST LANCASTER AVENUE	3. Date of Earliest Transaction (MM/DD/YYYY) 12/17/2020
(Street) PAOLI, PA 19301-9713 (City) (State) (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)	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. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. 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)
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	12/17/2020		S		1633226	D	$15.41	38098901 ⁽¹⁾⁽²⁾	I	By Self as Trustee
Common Stock	12/17/2020		S		816613	D	$15.41	37282288 ⁽¹⁾⁽³⁾	I	By Self as Trustee
Common Stock	12/17/2020		S		816613	D	$15.41	36465675 ⁽¹⁾⁽⁴⁾	I	By Self as Trustee
Common Stock	12/17/2020		S		816613	D	$15.41	35649062 ⁽¹⁾⁽⁵⁾	I	By Self as Trustee
Common Stock								30293021	D

*Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)*
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. 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		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 of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)			11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:
(1)	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, or for any other purpose.
(2)	On December 17, 2020, the James J. Kim 2008 Trust FBO Descendants of John T. Kim transferred 1,633,226 shares of Common Stock to Agnes C. Kim in payment of a Note. John T. Kim and Susan Y. Kim are co-trustees of the trust.
(3)	On December 17, 2020, the James J. Kim 2008 Trust FBO Jacqueline Mary Panichello & Descendants transferred 816,613 shares of Common Stock to Agnes C. Kim in payment of a Note. John T. Kim and Susan Y. Kim are co-trustees of the trust.
(4)	On December 17, 2020, the James J. Kim 2008 Trust FBO Dylan James Panichello & Descendants transferred 816,613 shares of Common Stock to Agnes C. Kim in payment of a Note. John T. Kim and Susan Y. Kim are co-trustees of the trust.
(5)	On December 17, 2020, the James J. Kim 2008 Trust FBO Alexandra Kim Panichello & Descendants transferred 816,613 shares of Common Stock to Agnes C. Kim in payment of a Note. John T. Kim and Susan Y. Kim are co-trustees of the trust.

Reporting Owners
Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
KIM SUSAN Y C/O SIANA CARR O'CONNOR & LYNAM, 1500 EAST LANCASTER AVENUE PAOLI, PA 19301-9713	X	X		See Exhibit 99.1