0001209191-21-065930.txt : 20211119 0001209191-21-065930.hdr.sgml : 20211119 20211119184907 ACCESSION NUMBER: 0001209191-21-065930 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20211119 FILED AS OF DATE: 20211119 DATE AS OF CHANGE: 20211119 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Stone John Charles CENTRAL INDEX KEY: 0001581432 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-29472 FILM NUMBER: 211429756 MAIL ADDRESS: STREET 1: 1514 W. ROCKROSE WAY CITY: CHANDLER STATE: AZ ZIP: 85248 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 X0306 4 2021-11-19 0 0001047127 AMKOR TECHNOLOGY, INC. AMKR 0001581432 Stone John Charles 2045 EAST INNOVATION CIRCLE TEMPE AZ 85284 0 1 0 0 Executive Vice President Common Stock 2021-11-19 4 M 0 9375 9.48 A 40927 D Common Stock 2021-11-19 4 S 0 9375 25.00 D 31552 D Common Stock 2000 I Held in Trust Employee Stock Option (Right-to-Buy) 9.48 2021-11-19 4 M 0 9375 0.00 D 2020-02-15 2029-02-15 Common Stock 9375 46875 D The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on August 30, 2021. This stock option (the "Option") to acquire 150,000 shares of the common stock of Amkor Technology, Inc. (the "Option Shares") was granted on February 15, 2019 (the "Grant Date") and vests over four years as follows: (i) with respect to 25% of the Option Shares, on the first anniversary of the Grant Date; and (ii) with respect to the remainder of the Option Shares, in equal quarterly installments thereafter, such that 100% of the Option will vest on the fourth anniversary of the Grant Date. Mark N. Rogers, Attorney-in-Fact for John Charles Stone 2021-11-19