Kevin Engel - Feb 10, 2023 Form 4 Insider Report for AMKOR TECHNOLOGY, INC. (AMKR)

Role: Executive Vice President
Signature: Mark N. Rogers, Attorney-in-Fact for Kevin Engel
Stock symbol: AMKR
Transactions as of: Feb 10, 2023
Transactions value $: -$9,936
Form type: 4
Date filed: 2/14/2023, 06:53 PM
Previous filing: Feb 14, 2023
Next filing: Feb 21, 2023

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AMKR	Common Stock	Options Exercise	$0	+817	+155.62%	$0.00	1.34K	Feb 10, 2023	Direct
transaction	AMKR	Common Stock	Tax liability	-$9.94K	-360	-26.83%	$27.60	982	Feb 10, 2023	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	AMKR	Restricted Stock Units	Options Exercise	$0	-817	-33.33%	$0.00	1.63K	Feb 10, 2023	Common Stock	817	$0.00	Direct	F2

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

Explanation of Responses:

Id	Content
F1	The transaction represents shares withheld by Amkor Technology, Inc. (the "Issuer") in connection with the vesting of certain restricted stock units ("RSUs") granted to the Reporting Person on February 11, 2021 (the "Grant Date") pursuant to the Issuer's Second Amended and Restated 2007 Equity Incentive Plan, as amended, and the related award agreement. These shares were withheld to satisfy the Reporting Person's tax withholding obligations. The Issuer will pay these taxes on behalf of the Reporting Person.
F2	On the Grant Date, the Reporting Person was granted 3,268 RSUs which vest in four equal annual installments beginning on the first anniversary of the Grant Date.

Content

The transaction represents shares withheld by Amkor Technology, Inc. (the "Issuer") in connection with the vesting of certain restricted stock units ("RSUs") granted to the Reporting Person on February 11, 2021 (the "Grant Date") pursuant to the Issuer's Second Amended and Restated 2007 Equity Incentive Plan, as amended, and the related award agreement. These shares were withheld to satisfy the Reporting Person's tax withholding obligations. The Issuer will pay these taxes on behalf of the Reporting Person.

On the Grant Date, the Reporting Person was granted 3,268 RSUs which vest in four equal annual installments beginning on the first anniversary of the Grant Date.