0001209191-23-050665.txt : 20230927 0001209191-23-050665.hdr.sgml : 20230927 20230927170335 ACCESSION NUMBER: 0001209191-23-050665 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20230925 FILED AS OF DATE: 20230927 DATE AS OF CHANGE: 20230927 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: ALEXANDER DOUGLAS A CENTRAL INDEX KEY: 0001195858 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-29472 FILM NUMBER: 231285363 MAIL ADDRESS: STREET 1: 555 EAST LANCASTER AVENUE STREET 2: SUITE 640 CITY: RADNOR STATE: PA ZIP: 19087 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: AMKOR TECHNOLOGY, INC. CENTRAL INDEX KEY: 0001047127 STANDARD INDUSTRIAL CLASSIFICATION: SEMICONDUCTORS & RELATED DEVICES [3674] 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 doc4.xml FORM 4 SUBMISSION X0508 4 2023-09-25 0 0001047127 AMKOR TECHNOLOGY, INC. AMKR 0001195858 ALEXANDER DOUGLAS A 2045 EAST INNOVATION CIRCLE TEMPE AZ 85284 1 0 0 0 0 Restricted Stock Units 2023-09-25 4 A 0 29.1626 0.00 A Common Stock 29.1626 8863.3406 D Restricted Stock Units 2023-09-25 4 A 0 28.3988 0.00 A Common Stock 28.3988 8530.5206 D Represents dividend equivalent units ("DEUs") accrued upon the payment of a dividend on September 25, 2023 with respect to time-vested restricted stock units ("RSUs") of Amkor Technology, Inc. (the "Issuer") granted to the Reporting Person on May 17, 2022. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued. Represents DEUs accrued upon the payment of a dividend on September 25, 2023 with respect to RSUs of the Issuer granted to the Reporting Person on May 16, 2023. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued. Mark N. Rogers, Attorney-in-Fact for Douglas A. Alexander 2023-09-27