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)
Code V Amount (A) or (D) Price
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 Security3. Trans. Date3A. Deemed Execution Date, if any4. 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 Date7. 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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares

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
Director10% OwnerOfficerOther
KIM SUSAN Y
C/O SIANA CARR O'CONNOR & LYNAM,
1500 EAST LANCASTER AVENUE
PAOLI, PA 19301-9713
XX
See Exhibit 99.1

Signatures
Mark N. Rogers, Attorney-in-Fact for Susan Y. Kim12/21/2020
**Signature of Reporting PersonDate

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