Kevin Engel - 19 Dec 2023 Form 4 Insider Report for AMKOR TECHNOLOGY, INC. (AMKR)

Role: Executive Vice President
Signature: Mark N. Rogers, Attorney-in-Fact for Kevin Engel
Issuer symbol: AMKR
Transactions as of: 19 Dec 2023
Net transactions value: -$3,514
Form type: 4
Filing time: 21 Dec 2023, 16:34:10 UTC
Previous filing: 06 Jun 2023
Next filing: 13 Feb 2024
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	AMKR	Common Stock	Options Exercise	$0	+27		$0.000000	27	19 Dec 2023	Direct	F1
transaction	AMKR	Common Stock	Tax liability	$912	-27	-100%	$33.79	0	19 Dec 2023	Direct	F1
transaction	AMKR	Common Stock	Options Exercise	$0	+30		$0.000000	30	19 Dec 2023	Direct	F2
transaction	AMKR	Common Stock	Tax liability	$1,014	-30	-100%	$33.79	0	19 Dec 2023	Direct	F2
transaction	AMKR	Common Stock	Options Exercise	$0	+47		$0.000000	47	19 Dec 2023	Direct	F3
transaction	AMKR	Common Stock	Tax liability	$1,588	-47	-100%	$33.79	0	19 Dec 2023	Direct	F3

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	-27	-1.7%	$0.000000	1,607	19 Dec 2023	Common Stock	27		Direct	F1
transaction	AMKR	Restricted Stock Units	Options Exercise	$0	-30	-1.1%	$0.000000	2,790	19 Dec 2023	Common Stock	30		Direct	F2
transaction	AMKR	Restricted Stock Units	Options Exercise	$0	-47	-0.84%	$0.000000	5,520	19 Dec 2023	Common Stock	47		Direct	F3

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

Explanation of Responses:

Id	Content
F1	The reported transaction involved the withholding of 27 shares of common stock of Amkor Technology, Inc. (the "Issuer") issuable upon the early vesting of an equal number of restricted stock units ("RSUs") to pay taxes associated with the Reporting Person's retirement eligibility status.
F2	The reported transaction involved the withholding of 30 shares of the Issuer's common stock issuable upon the early vesting of an equal number of RSUs to pay taxes associated with the Reporting Person's retirement eligibility status.
F3	The reported transaction involved the withholding of 47 shares of the Issuer's common stock issuable upon the early vesting of an equal number of RSUs to pay taxes associated with the Reporting Person's retirement eligibility status.