0001047127-24-000050.txt : 20240227 0001047127-24-000050.hdr.sgml : 20240227 20240227163507 ACCESSION NUMBER: 0001047127-24-000050 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240223 FILED AS OF DATE: 20240227 DATE AS OF CHANGE: 20240227 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Engel Kevin CENTRAL INDEX KEY: 0001965254 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-29472 FILM NUMBER: 24687539 MAIL ADDRESS: STREET 1: 2045 EAST INNOVATION CIRCLE CITY: TEMPE STATE: AZ ZIP: 85284 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: AMKOR TECHNOLOGY, INC. CENTRAL INDEX KEY: 0001047127 STANDARD INDUSTRIAL CLASSIFICATION: SEMICONDUCTORS & RELATED DEVICES [3674] ORGANIZATION NAME: 04 Manufacturing IRS NUMBER: 231722724 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 2045 EAST INNOVATION CIRCLE CITY: TEMPE STATE: AZ ZIP: 85284 BUSINESS PHONE: 480-821-5000 MAIL ADDRESS: STREET 1: 2045 EAST INNOVATION CIRCLE CITY: TEMPE STATE: AZ ZIP: 85284 FORMER COMPANY: FORMER CONFORMED NAME: AMKOR TECHNOLOGY INC DATE OF NAME CHANGE: 19971001 4 1 wk-form4_1709069685.xml FORM 4 X0508 4 2024-02-23 0 0001047127 AMKOR TECHNOLOGY, INC. AMKR 0001965254 Engel Kevin 2045 EAST INNOVATION CIRCLE TEMPE AZ 85284 0 1 0 0 Executive Vice President 0 Common Stock 2024-02-23 4 M 0 910 0 A 5293 D Common Stock 2024-02-23 4 F 0 372 30.59 D 4921 D Restricted Stock Units 0 2024-02-23 4 M 0 910 0 D Common Stock 910 1880 D On February 22, 2024, the Reporting Person filed a Form 4 (the "Previous Form 4") which inadvertently underreported by 28 shares the number of shares of Amkor Technology, Inc. (the "Issuer") common stock ("Shares") withheld by the Issuer in connection with the vesting of performance-vested restricted stock units to satisfy the Reporting Person's tax withholding obligations. As a result, the Previous Form 4 inadvertently reported that the Reporting Person beneficially owned 4,411 Shares as of February 20, 2024, instead of 4,383. As of February 23, 2024, the Reporting Person beneficially owned 4,921 Shares. The transaction represents shares withheld by the Issuer in connection with the vesting of certain restricted stock units ("RSUs") granted to the Reporting Person on February 24, 2022 (the "Grant Date") pursuant to the Issuer's 2021 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 3,761 RSUs which vest in four equal annual installments beginning on the first anniversary of the Grant Date. Mark N. Rogers, Attorney-in-Fact for Kevin Engel 2024-02-27