0001047127 2021-02-08 2021-02-08 0001047127 false 8-K 2021-02-08 AMKOR TECHNOLOGY, INC. DE 000-29472 23-1722724 2045 EAST INNOVATION CIRCLE TEMPE AZ 85284 480 821-5000 false false false false Common Stock, $0.001 par value AMKR NASDAQ false