James J. Kim - Feb 11, 2021 Form 4/A - Amendment Insider Report for AMKOR TECHNOLOGY, INC. (AMKR)

Role: Director, Member of 10% owner group (7), 10%+ Owner
Signature: /s/ Richard D. Rosen, as Attorney-in-Fact
Stock symbol: AMKR
Transactions as of: Feb 11, 2021
Transactions value $: $0
Form type: 4/A - Amendment
Date filed: 12/29/2021, 06:54 PM
Date Of Original Report: Feb 18, 2021
Next filing: Jan 21, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AMKR	Common Stock	Award	$0	+10.9K	+0.86%	$0.00	1.28M	Feb 11, 2021	Direct	F1, F2
holding	AMKR	Common Stock						23	Feb 11, 2021	By spouse	F6
holding	AMKR	Common Stock						49.6M	Feb 11, 2021	By self as GP	F3, F6
holding	AMKR	Common Stock						6.42M	Feb 11, 2021	By self as trustee of GRATs	F4, F6
holding	AMKR	Common Stock						14.4M	Feb 11, 2021	By self as trustee of non-GRATs	F5, F6

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

Explanation of Responses:

Id	Content
F1	As reported on a Form 4 timely filed with the Commission by the reporting person on February 18, 2021 (the "Original Form 4"), 10,893 Time-Vested Restricted Stock Units which vest 25% on each of the first four anniversaries of the grant date were granted to the reporting person on February 11, 2021.
F2	The original Form 4 incorrectly included options to purchase 450,000 shares of the Issuer's Common Stock in the reporting person's directly owned stock in Column 5 of Table I.
F3	The reporting person is the sole general partner of a limited partnership. The limited partners of the limited partnership are members of his immediate family or entities owned by them. The reporting person has elected to report indirect beneficial ownership of all shares of the Issuer's Common Stock owned by the limited partnership.
F4	These shares of the Issuer's Common Stock are held by grantor retained annuity trusts of which the reporting person is the settlor, the sole annuitant and a co-trustee.
F5	These shares, which are owned by trusts of which the reporting person is a co-trustee and whose beneficiaries are members of the reporting person's immediate family, were inadvertently omitted from the Original Form 4. The reporting person has elected to report indirect beneficial ownership of all shares of the Issuer's Common Stock owned by these trusts.
F6	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.

Remarks:

(7) The reporting person states that the filing of this Amendment to the Original Form 4 shall not be deemed an admission that the reporting person is the beneficial owner of the reported securities owned by the other members of the Group, for the purpose of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.