0001209191-21-022389.txt : 20210322 0001209191-21-022389.hdr.sgml : 20210322 20210322171515 ACCESSION NUMBER: 0001209191-21-022389 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210318 FILED AS OF DATE: 20210322 DATE AS OF CHANGE: 20210322 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: 21762114 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 2021-03-18 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 2021-03-18 4 M 0 9375 9.86 A 40927 D Common Stock 2021-03-18 4 S 0 9375 24.00 D 31552 D Common Stock 2000 I Held in Trust Employee Stock Option (Right-to-Buy) 9.86 2021-03-18 4 M 0 9375 0.00 D 2018-02-27 2027-02-27 Common Stock 9375 0 D The sale reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 16, 2021. This stock option was granted on February 27, 2017 and will vest over four years as follows: 25% on the first anniversary of the grant date and 1/16 of the option will vest each quarter thereafter so that at the end of the fourth year, 100% of the option will be vested. Mark N. Rogers, Attorney-in-Fact for John C. Stone 2021-03-22