0001047127-25-000161.txt : 20250702 0001047127-25-000161.hdr.sgml : 20250702 20250702181628 ACCESSION NUMBER: 0001047127-25-000161 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20250630 FILED AS OF DATE: 20250702 DATE AS OF CHANGE: 20250702 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Rutten Guillaume Marie Jean CENTRAL INDEX KEY: 0001596796 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-29472 FILM NUMBER: 251102989 MAIL ADDRESS: STREET 1: 1900 S. PRICE ROAD CITY: CHANDLER STATE: AZ ZIP: 85286 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: AMKOR TECHNOLOGY, INC. CENTRAL INDEX KEY: 0001047127 STANDARD INDUSTRIAL CLASSIFICATION: SEMICONDUCTORS & RELATED DEVICES [3674] ORGANIZATION NAME: 04 Manufacturing EIN: 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_1751494581.xml FORM 4 X0508 4 2025-06-30 0 0001047127 AMKOR TECHNOLOGY, INC. AMKR 0001596796 Rutten Guillaume Marie Jean 2045 EAST INNOVATION CIRCLE TEMPE AZ 85284 1 1 0 0 President and CEO 0 Common Stock 2025-06-30 4 M 0 8691 0 A 368007 D Restricted Stock Units 0 2025-06-30 4 M 0 8691 0 D Common Stock 8691 34768 D On February 20, 2025, the Reporting Person was granted 43,459 restricted stock units which vest in five equal quarterly installments on each of June 30, 2025, September 30, 2025, December 31, 2025, March 31, 2026, and June 30, 2026, such that 100% will be vested on June 30, 2026. Mark N. Rogers, Attorney-in-Fact for Guillaume Marie Jean Rutten 2025-07-02