John T. Kim - Dec 30, 2021 Form 4/A - Amendment Insider Report for AMKOR TECHNOLOGY, INC. (AMKR)

Role: Member of 10% owner group, 10%+ Owner
Signature: /s/ Richard D. Rosen, Attorney-in-Fact for John T. Kim
Stock symbol: AMKR
Transactions as of: Dec 30, 2021
Transactions value $: $0
Form type: 4/A - Amendment
Date filed: 3/10/2022, 06:53 PM
Date Of Original Report: Jan 4, 2022
Previous filing: Jan 21, 2022
Next filing: Mar 10, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	AMKR	Common Stock						21.5M	Dec 30, 2021	By trusts (other than GRAT)	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	On January 4, 2022, the Reporting Person filed a Form 4 (the "Original Form 4") which inadvertently omitted 7,594,001 shares of the Issuer's Common Stock owned by the John T. Kim Trust Dated December 31, 1987, the Reporting Person's Revocable Trust (the "Omitted Shares"). The Omitted Shares had previously been reported in prior reports filed by the Reporting Person pursuant to Section 16 of the Securities Exchange Act of 1934, as amended, and are included in the amount set forth in Table I of this amendment to the Original Form 4.

Content

On January 4, 2022, the Reporting Person filed a Form 4 (the "Original Form 4") which inadvertently omitted 7,594,001 shares of the Issuer's Common Stock owned by the John T. Kim Trust Dated December 31, 1987, the Reporting Person's Revocable Trust (the "Omitted Shares"). The Omitted Shares had previously been reported in prior reports filed by the Reporting Person pursuant to Section 16 of the Securities Exchange Act of 1934, as amended, and are included in the amount set forth in Table I of this amendment to the Original Form 4.