{"transactions":[{"id":4626241,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-09-24T20:43:57.000Z","date":"2026-09-22","kind":"grant","planned":false,"acquired":true,"shares":3.9978,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on September 22, 2026 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the\n\"Issuer\") granted to the Reporting Person on May 13, 2026. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on September 22, 2026 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the\n\"Issuer\") granted to the Reporting Person on May 13, 2026. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on September 22, 2026 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the\n\"Issuer\") granted to the Reporting Person on May 13, 2026. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."}],"balance_after":2619.5144,"derivative":{"underlying":"Common Stock","underlying_shares":3.9978},"source":{"system":"sec-edgar","filing":"0001628280-26-063433","document":"wk-form4_1790282634.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1276908/000162828026063433/wk-form4_1790282634.xml","form_type":"4"}},{"id":726873,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-06-25T20:48:47.000Z","date":"2026-06-23","kind":"grant","planned":false,"acquired":true,"shares":2.5166,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on June 23, 2026 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the\n\"Issuer\") granted to the Reporting Person on May 13, 2026. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on June 23, 2026 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the\n\"Issuer\") granted to the Reporting Person on May 13, 2026. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on June 23, 2026 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the\n\"Issuer\") granted to the Reporting Person on May 13, 2026. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."}],"balance_after":2615.5166,"derivative":{"underlying":"Common Stock","underlying_shares":2.5166},"source":{"system":"sec-edgar","filing":"0001628280-26-045575","document":"wk-form4_1782420525.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000162828026045575/wk-form4_1782420525.xml","form_type":"4"}},{"id":777596,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-05-15T20:35:37.000Z","date":"2026-05-13","kind":"grant","planned":false,"acquired":true,"shares":2613,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Represents shares of common stock underlying RSUs granted on May 13, 2026 (the \"Grant Date\") pursuant to the Plan (the \"2026 RSUs\"). Subject to the terms and conditions of the applicable award agreement, the 2026\nRSUs may be converted into common stock of the Issuer on a one-for-one basis and will vest in full on the earlier of the first anniversary of the Grant Date or the date of the Issuer's first annual meeting of stockholders\nimmediately following the Grant Date. The 2026 RSUs were awarded for no consideration other than the Reporting Person's service as a director of the Issuer."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Represents shares of common stock underlying RSUs granted on May 13, 2026 (the \"Grant Date\") pursuant to the Plan (the \"2026 RSUs\"). Subject to the terms and conditions of the applicable award agreement, the 2026\nRSUs may be converted into common stock of the Issuer on a one-for-one basis and will vest in full on the earlier of the first anniversary of the Grant Date or the date of the Issuer's first annual meeting of stockholders\nimmediately following the Grant Date. The 2026 RSUs were awarded for no consideration other than the Reporting Person's service as a director of the Issuer."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Represents shares of common stock underlying RSUs granted on May 13, 2026 (the \"Grant Date\") pursuant to the Plan (the \"2026 RSUs\"). Subject to the terms and conditions of the applicable award agreement, the 2026\nRSUs may be converted into common stock of the Issuer on a one-for-one basis and will vest in full on the earlier of the first anniversary of the Grant Date or the date of the Issuer's first annual meeting of stockholders\nimmediately following the Grant Date. The 2026 RSUs were awarded for no consideration other than the Reporting Person's service as a director of the Issuer."}],"balance_after":2613,"derivative":{"underlying":"Common Stock","underlying_shares":2613},"source":{"system":"sec-edgar","filing":"0001628280-26-035647","document":"wk-form4_1778877334.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000162828026035647/wk-form4_1778877334.xml","form_type":"4"}},{"id":777595,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-05-15T20:35:37.000Z","date":"2026-05-13","kind":"exercise","planned":false,"acquired":false,"shares":9893.0573,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"On May 15, 2025, the Reporting Person was granted 9,789 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the\napplicable award agreement (the \"2025 RSUs\"). In connection with the vesting of the 2025 RSUs on May 13, 2026: (i) 0.0573 of the 2025 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU\nrepresenting an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2025 RSUs, including 104 DEUs, converted into\ncommon stock of the Issuer on a one-for-one basis."},{"field":"shares","element":"transactionShares","label":"F1","text":"On May 15, 2025, the Reporting Person was granted 9,789 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the\napplicable award agreement (the \"2025 RSUs\"). In connection with the vesting of the 2025 RSUs on May 13, 2026: (i) 0.0573 of the 2025 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU\nrepresenting an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2025 RSUs, including 104 DEUs, converted into\ncommon stock of the Issuer on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"On May 15, 2025, the Reporting Person was granted 9,789 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the\napplicable award agreement (the \"2025 RSUs\"). In connection with the vesting of the 2025 RSUs on May 13, 2026: (i) 0.0573 of the 2025 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU\nrepresenting an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2025 RSUs, including 104 DEUs, converted into\ncommon stock of the Issuer on a one-for-one basis."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"On May 15, 2025, the Reporting Person was granted 9,789 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the\napplicable award agreement (the \"2025 RSUs\"). In connection with the vesting of the 2025 RSUs on May 13, 2026: (i) 0.0573 of the 2025 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU\nrepresenting an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2025 RSUs, including 104 DEUs, converted into\ncommon stock of the Issuer on a one-for-one basis."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F1","text":"On May 15, 2025, the Reporting Person was granted 9,789 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the\napplicable award agreement (the \"2025 RSUs\"). In connection with the vesting of the 2025 RSUs on May 13, 2026: (i) 0.0573 of the 2025 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU\nrepresenting an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2025 RSUs, including 104 DEUs, converted into\ncommon stock of the Issuer on a one-for-one basis."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":9893.0573},"source":{"system":"sec-edgar","filing":"0001628280-26-035647","document":"wk-form4_1778877334.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000162828026035647/wk-form4_1778877334.xml","form_type":"4"}},{"id":777594,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-05-15T20:35:37.000Z","date":"2026-05-13","kind":"exercise","planned":false,"acquired":true,"shares":9893,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On May 15, 2025, the Reporting Person was granted 9,789 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the\napplicable award agreement (the \"2025 RSUs\"). In connection with the vesting of the 2025 RSUs on May 13, 2026: (i) 0.0573 of the 2025 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU\nrepresenting an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2025 RSUs, including 104 DEUs, converted into\ncommon stock of the Issuer on a one-for-one basis."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On May 15, 2025, the Reporting Person was granted 9,789 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the\napplicable award agreement (the \"2025 RSUs\"). In connection with the vesting of the 2025 RSUs on May 13, 2026: (i) 0.0573 of the 2025 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU\nrepresenting an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2025 RSUs, including 104 DEUs, converted into\ncommon stock of the Issuer on a one-for-one basis."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"On May 15, 2025, the Reporting Person was granted 9,789 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the\napplicable award agreement (the \"2025 RSUs\"). In connection with the vesting of the 2025 RSUs on May 13, 2026: (i) 0.0573 of the 2025 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU\nrepresenting an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2025 RSUs, including 104 DEUs, converted into\ncommon stock of the Issuer on a one-for-one basis."}],"balance_after":130650,"source":{"system":"sec-edgar","filing":"0001628280-26-035647","document":"wk-form4_1778877334.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000162828026035647/wk-form4_1778877334.xml","form_type":"4"}},{"id":820848,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2026-04-02T23:01:12.000Z","date":"2026-03-31","kind":"grant","planned":false,"acquired":true,"shares":18.1563,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on March 31, 2026 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc.\n(the \"Issuer\") granted to the Reporting Person on May 15, 2026. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on March 31, 2026 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc.\n(the \"Issuer\") granted to the Reporting Person on May 15, 2026. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on March 31, 2026 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc.\n(the \"Issuer\") granted to the Reporting Person on May 15, 2026. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."}],"balance_after":9893.0573,"derivative":{"underlying":"Common Stock","underlying_shares":18.1563},"source":{"system":"sec-edgar","filing":"0001628280-26-023403","document":"wk-form4_1775170869.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000162828026023403/wk-form4_1775170869.xml","form_type":"4"}},{"id":880196,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Director Stock Option (Right-to-Buy)","published_at":"2026-02-26T21:09:26.000Z","date":"2026-02-25","kind":"exercise","planned":false,"acquired":false,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"This stock option to acquire 20,000 shares of the Issuer's Common Stock was granted on May 4, 2016 and vested in full on May 2, 2017."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"This stock option to acquire 20,000 shares of the Issuer's Common Stock was granted on May 4, 2016 and vested in full on May 2, 2017."}],"balance_after":0,"derivative":{"exercise_price":5.66,"exercise_date":"2017-05-04","expiration_date":"2026-05-04","underlying":"Common Stock","underlying_shares":20000},"source":{"system":"sec-edgar","filing":"0001628280-26-012277","document":"wk-form4_1772140164.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000162828026012277/wk-form4_1772140164.xml","form_type":"4"}},{"id":880195,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-26T21:09:26.000Z","date":"2026-02-25","kind":"tax_withholding","planned":false,"acquired":false,"shares":2223,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F1","text":"Exempt purchase under Section 16b-3. Transaction executed as net exercise executed with Amkor Technology, Inc. (the \"Issuer\"), in which no shares were purchased or sold in the open market."}],"balance_after":120757,"source":{"system":"sec-edgar","filing":"0001628280-26-012277","document":"wk-form4_1772140164.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000162828026012277/wk-form4_1772140164.xml","form_type":"4"}},{"id":880194,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2026-02-26T21:09:26.000Z","date":"2026-02-25","kind":"exercise","planned":false,"acquired":true,"shares":20000,"price":5.66,"value":113200.0,"ownership":{"direct":true},"balance_after":122980,"source":{"system":"sec-edgar","filing":"0001628280-26-012277","document":"wk-form4_1772140164.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000162828026012277/wk-form4_1772140164.xml","form_type":"4"}},{"id":958686,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2025-12-29T13:20:10.000Z","date":"2025-12-23","kind":"grant","planned":false,"acquired":true,"shares":20.0093,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on December 23, 2025 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc.\n(the \"Issuer\") granted to the Reporting Person on May 15, 2025. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on December 23, 2025 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc.\n(the \"Issuer\") granted to the Reporting Person on May 15, 2025. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on December 23, 2025 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc.\n(the \"Issuer\") granted to the Reporting Person on May 15, 2025. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."}],"balance_after":9874.901,"derivative":{"underlying":"Common Stock","underlying_shares":20.0093},"source":{"system":"sec-edgar","filing":"0001628280-25-058859","document":"wk-form4_1767014407.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000162828025058859/wk-form4_1767014407.xml","form_type":"4"}},{"id":1032503,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2025-09-25T20:37:48.000Z","date":"2025-09-23","kind":"grant","planned":false,"acquired":true,"shares":27.3648,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on September 23, 2025 with respect to time-vested restricted stock units (\"RSUs\") of the Issuer granted to the\nReporting Person on May 15, 2025. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on September 23, 2025 with respect to time-vested restricted stock units (\"RSUs\") of the Issuer granted to the\nReporting Person on May 15, 2025. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on September 23, 2025 with respect to time-vested restricted stock units (\"RSUs\") of the Issuer granted to the\nReporting Person on May 15, 2025. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."}],"balance_after":9854.8917,"derivative":{"underlying":"Common Stock","underlying_shares":27.3648},"source":{"system":"sec-edgar","filing":"0001628280-25-042818","document":"wk-form4_1758832666.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000162828025042818/wk-form4_1758832666.xml","form_type":"4"}},{"id":1100541,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2025-06-27T21:37:08.000Z","date":"2025-06-25","kind":"grant","planned":false,"acquired":true,"shares":38.5269,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on June 25, 2025 with respect to time-vested restricted stock units (\"RSUs\") of the Issuer granted to the\nReporting Person on May 15, 2025. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on June 25, 2025 with respect to time-vested restricted stock units (\"RSUs\") of the Issuer granted to the\nReporting Person on May 15, 2025. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on June 25, 2025 with respect to time-vested restricted stock units (\"RSUs\") of the Issuer granted to the\nReporting Person on May 15, 2025. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."}],"balance_after":9827.5269,"derivative":{"underlying":"Common Stock","underlying_shares":38.5269},"source":{"system":"sec-edgar","filing":"0001047127-25-000130","document":"wk-form4_1751060222.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000104712725000130/wk-form4_1751060222.xml","form_type":"4"}},{"id":1145975,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2025-05-16T20:43:28.000Z","date":"2025-05-15","kind":"grant","planned":false,"acquired":true,"shares":9789,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Represents shares of common stock underlying RSUs granted on May 15, 2025 (the \"Grant Date\") pursuant to the Plan (the \"2025 RSUs\"). Subject to the terms and conditions of the applicable award agreement, the 2025 RSUs may be converted into common stock of the Issuer on a one-for-one basis and will vest in full on the earlier of the first anniversary of the Grant Date or the date of the Issuer's first annual meeting of stockholders immediately following the Grant Date. The 2025 RSUs were awarded for no consideration other than the Reporting Person's service as a director of the Issuer."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Represents shares of common stock underlying RSUs granted on May 15, 2025 (the \"Grant Date\") pursuant to the Plan (the \"2025 RSUs\"). Subject to the terms and conditions of the applicable award agreement, the 2025 RSUs may be converted into common stock of the Issuer on a one-for-one basis and will vest in full on the earlier of the first anniversary of the Grant Date or the date of the Issuer's first annual meeting of stockholders immediately following the Grant Date. The 2025 RSUs were awarded for no consideration other than the Reporting Person's service as a director of the Issuer."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Represents shares of common stock underlying RSUs granted on May 15, 2025 (the \"Grant Date\") pursuant to the Plan (the \"2025 RSUs\"). Subject to the terms and conditions of the applicable award agreement, the 2025 RSUs may be converted into common stock of the Issuer on a one-for-one basis and will vest in full on the earlier of the first anniversary of the Grant Date or the date of the Issuer's first annual meeting of stockholders immediately following the Grant Date. The 2025 RSUs were awarded for no consideration other than the Reporting Person's service as a director of the Issuer."}],"balance_after":9789,"derivative":{"underlying":"Common Stock","underlying_shares":9789},"source":{"system":"sec-edgar","filing":"0001047127-25-000113","document":"wk-form4_1747428199.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000104712725000113/wk-form4_1747428199.xml","form_type":"4"}},{"id":1145974,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2025-05-16T20:43:28.000Z","date":"2025-05-14","kind":"exercise","planned":false,"acquired":false,"shares":6017.0342,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"On May 14, 2024, the Reporting Person was granted 5,855 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the applicable award agreement (the \"2024 RSUs\"). In connection with the vesting of the 2024 RSUs on May 14, 2025: (i) 0.0342 of the 2024 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU representing an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2024 RSUs, including 162 DEUs, converted into common stock of the Issuer on a one-for-one basis."},{"field":"shares","element":"transactionShares","label":"F1","text":"On May 14, 2024, the Reporting Person was granted 5,855 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the applicable award agreement (the \"2024 RSUs\"). In connection with the vesting of the 2024 RSUs on May 14, 2025: (i) 0.0342 of the 2024 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU representing an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2024 RSUs, including 162 DEUs, converted into common stock of the Issuer on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"On May 14, 2024, the Reporting Person was granted 5,855 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the applicable award agreement (the \"2024 RSUs\"). In connection with the vesting of the 2024 RSUs on May 14, 2025: (i) 0.0342 of the 2024 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU representing an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2024 RSUs, including 162 DEUs, converted into common stock of the Issuer on a one-for-one basis."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"On May 14, 2024, the Reporting Person was granted 5,855 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the applicable award agreement (the \"2024 RSUs\"). In connection with the vesting of the 2024 RSUs on May 14, 2025: (i) 0.0342 of the 2024 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU representing an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2024 RSUs, including 162 DEUs, converted into common stock of the Issuer on a one-for-one basis."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F1","text":"On May 14, 2024, the Reporting Person was granted 5,855 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the applicable award agreement (the \"2024 RSUs\"). In connection with the vesting of the 2024 RSUs on May 14, 2025: (i) 0.0342 of the 2024 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU representing an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2024 RSUs, including 162 DEUs, converted into common stock of the Issuer on a one-for-one basis."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":6017.0342},"source":{"system":"sec-edgar","filing":"0001047127-25-000113","document":"wk-form4_1747428199.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000104712725000113/wk-form4_1747428199.xml","form_type":"4"}},{"id":1145973,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-05-16T20:43:28.000Z","date":"2025-05-14","kind":"exercise","planned":false,"acquired":true,"shares":6017,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On May 14, 2024, the Reporting Person was granted 5,855 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the applicable award agreement (the \"2024 RSUs\"). In connection with the vesting of the 2024 RSUs on May 14, 2025: (i) 0.0342 of the 2024 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU representing an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2024 RSUs, including 162 DEUs, converted into common stock of the Issuer on a one-for-one basis."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On May 14, 2024, the Reporting Person was granted 5,855 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the applicable award agreement (the \"2024 RSUs\"). In connection with the vesting of the 2024 RSUs on May 14, 2025: (i) 0.0342 of the 2024 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU representing an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2024 RSUs, including 162 DEUs, converted into common stock of the Issuer on a one-for-one basis."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"On May 14, 2024, the Reporting Person was granted 5,855 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the applicable award agreement (the \"2024 RSUs\"). In connection with the vesting of the 2024 RSUs on May 14, 2025: (i) 0.0342 of the 2024 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU representing an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2024 RSUs, including 162 DEUs, converted into common stock of the Issuer on a one-for-one basis."}],"balance_after":102980,"source":{"system":"sec-edgar","filing":"0001047127-25-000113","document":"wk-form4_1747428199.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000104712725000113/wk-form4_1747428199.xml","form_type":"4"}},{"id":1177881,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2025-04-04T20:04:09.000Z","date":"2025-04-02","kind":"grant","planned":false,"acquired":true,"shares":25.9877,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on April 2, 2025 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc.\n(the \"Issuer\") granted to the Reporting Person on May 14, 2024. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on April 2, 2025 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc.\n(the \"Issuer\") granted to the Reporting Person on May 14, 2024. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on April 2, 2025 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc.\n(the \"Issuer\") granted to the Reporting Person on May 14, 2024. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."}],"balance_after":6017.0342,"derivative":{"underlying":"Common Stock","underlying_shares":25.9877},"source":{"system":"sec-edgar","filing":"0001047127-25-000062","document":"wk-form4_1743797042.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000104712725000062/wk-form4_1743797042.xml","form_type":"4"}},{"id":1206282,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Director Stock Option (Right-to-Buy)","published_at":"2025-03-14T22:33:40.000Z","date":"2025-03-14","kind":"exercise","planned":false,"acquired":false,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"This stock option to acquire 20,000 shares of Amkor Technology, Inc. Common Stock was granted on May 5, 2015, vested in full on May 4, 2016 and was set to expire on May 5, 2025."}],"balance_after":0,"derivative":{"exercise_price":6.81,"exercise_date":"2016-05-05","expiration_date":"2025-05-05","underlying":"Common Stock","underlying_shares":20000},"source":{"system":"sec-edgar","filing":"0001047127-25-000056","document":"wk-form4_1741991614.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000104712725000056/wk-form4_1741991614.xml","form_type":"4"}},{"id":1206281,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-03-14T22:33:40.000Z","date":"2025-03-14","kind":"exercise","planned":false,"acquired":true,"shares":20000,"price":6.81,"value":136200.0,"ownership":{"direct":true},"balance_after":96963,"source":{"system":"sec-edgar","filing":"0001047127-25-000056","document":"wk-form4_1741991614.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000104712725000056/wk-form4_1741991614.xml","form_type":"4"}},{"id":1322129,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2024-12-26T17:59:57.000Z","date":"2024-12-23","kind":"grant","planned":false,"acquired":true,"shares":108.7979,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on December 23, 2024 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") granted to the Reporting Person on May 14, 2024. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on December 23, 2024 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") granted to the Reporting Person on May 14, 2024. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on December 23, 2024 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") granted to the Reporting Person on May 14, 2024. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."}],"balance_after":5991.0465,"derivative":{"underlying":"Common Stock","underlying_shares":108.7979},"source":{"system":"sec-edgar","filing":"0001047127-24-000231","document":"wk-form4_1735235991.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000104712724000231/wk-form4_1735235991.xml","form_type":"4"}},{"id":1399643,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2024-09-25T20:48:07.000Z","date":"2024-09-23","kind":"grant","planned":false,"acquired":true,"shares":14.864,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on September 23, 2024 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") granted to the Reporting Person on May 14, 2024. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on September 23, 2024 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") granted to the Reporting Person on May 14, 2024. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on September 23, 2024 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") granted to the Reporting Person on May 14, 2024. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."}],"balance_after":5882.2486,"derivative":{"underlying":"Common Stock","underlying_shares":14.864},"source":{"system":"sec-edgar","filing":"0001047127-24-000193","document":"wk-form4_1727297281.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000104712724000193/wk-form4_1727297281.xml","form_type":"4"}},{"id":1469001,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2024-06-26T21:35:19.000Z","date":"2024-06-24","kind":"grant","planned":false,"acquired":true,"shares":12.3846,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on June 24, 2024 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") granted to the Reporting Person on May 14, 2024. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on June 24, 2024 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") granted to the Reporting Person on May 14, 2024. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued upon the payment of a dividend on June 24, 2024 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") granted to the Reporting Person on May 14, 2024. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."}],"balance_after":5867.3846,"derivative":{"underlying":"Common Stock","underlying_shares":12.3846},"source":{"system":"sec-edgar","filing":"0001047127-24-000133","document":"wk-form4_1719437712.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000104712724000133/wk-form4_1719437712.xml","form_type":"4"}},{"id":1514727,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2024-05-16T22:13:41.000Z","date":"2024-05-14","kind":"grant","planned":false,"acquired":true,"shares":5855,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Represents shares of common stock underlying RSUs granted on May 14, 2024 (the \"Grant Date\") pursuant to the Plan (the \"2024 RSUs\"). Subject to the terms and conditions of the applicable award agreement, the 2024 RSUs may be converted into common stock of the Issuer on a one-for-one basis and will vest in full on the earlier of the first anniversary of the Grant Date or the date of the Issuer's first annual meeting of stockholders immediately following the Grant Date. The 2024 RSUs were awarded for no consideration other than the Reporting Person's service as a director of the Issuer."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Represents shares of common stock underlying RSUs granted on May 14, 2024 (the \"Grant Date\") pursuant to the Plan (the \"2024 RSUs\"). Subject to the terms and conditions of the applicable award agreement, the 2024 RSUs may be converted into common stock of the Issuer on a one-for-one basis and will vest in full on the earlier of the first anniversary of the Grant Date or the date of the Issuer's first annual meeting of stockholders immediately following the Grant Date. The 2024 RSUs were awarded for no consideration other than the Reporting Person's service as a director of the Issuer."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Represents shares of common stock underlying RSUs granted on May 14, 2024 (the \"Grant Date\") pursuant to the Plan (the \"2024 RSUs\"). Subject to the terms and conditions of the applicable award agreement, the 2024 RSUs may be converted into common stock of the Issuer on a one-for-one basis and will vest in full on the earlier of the first anniversary of the Grant Date or the date of the Issuer's first annual meeting of stockholders immediately following the Grant Date. The 2024 RSUs were awarded for no consideration other than the Reporting Person's service as a director of the Issuer."}],"balance_after":5855,"derivative":{"underlying":"Common Stock","underlying_shares":5855},"source":{"system":"sec-edgar","filing":"0001047127-24-000102","document":"wk-form4_1715897603.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000104712724000102/wk-form4_1715897603.xml","form_type":"4"}},{"id":1514726,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2024-05-16T22:13:41.000Z","date":"2024-05-14","kind":"exercise","planned":false,"acquired":false,"shares":8571.0421,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"On May 16, 2023, the Reporting Person was granted 8,478 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the applicable award agreement (the \"2023 RSUs\"). In connection with the vesting of the 2023 RSUs on May 14, 2024: (i) 0.0421 of the 2023 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU representing an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2023 RSUs, including 93 DEUs, converted into common stock of the Issuer on a one-for-one basis."},{"field":"shares","element":"transactionShares","label":"F1","text":"On May 16, 2023, the Reporting Person was granted 8,478 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the applicable award agreement (the \"2023 RSUs\"). In connection with the vesting of the 2023 RSUs on May 14, 2024: (i) 0.0421 of the 2023 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU representing an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2023 RSUs, including 93 DEUs, converted into common stock of the Issuer on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"On May 16, 2023, the Reporting Person was granted 8,478 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the applicable award agreement (the \"2023 RSUs\"). In connection with the vesting of the 2023 RSUs on May 14, 2024: (i) 0.0421 of the 2023 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU representing an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2023 RSUs, including 93 DEUs, converted into common stock of the Issuer on a one-for-one basis."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"On May 16, 2023, the Reporting Person was granted 8,478 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the applicable award agreement (the \"2023 RSUs\"). In connection with the vesting of the 2023 RSUs on May 14, 2024: (i) 0.0421 of the 2023 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU representing an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2023 RSUs, including 93 DEUs, converted into common stock of the Issuer on a one-for-one basis."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F1","text":"On May 16, 2023, the Reporting Person was granted 8,478 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the applicable award agreement (the \"2023 RSUs\"). In connection with the vesting of the 2023 RSUs on May 14, 2024: (i) 0.0421 of the 2023 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU representing an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2023 RSUs, including 93 DEUs, converted into common stock of the Issuer on a one-for-one basis."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":8571.0421},"source":{"system":"sec-edgar","filing":"0001047127-24-000102","document":"wk-form4_1715897603.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000104712724000102/wk-form4_1715897603.xml","form_type":"4"}},{"id":1514725,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-05-16T22:13:41.000Z","date":"2024-05-14","kind":"exercise","planned":false,"acquired":true,"shares":8571,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On May 16, 2023, the Reporting Person was granted 8,478 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the applicable award agreement (the \"2023 RSUs\"). In connection with the vesting of the 2023 RSUs on May 14, 2024: (i) 0.0421 of the 2023 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU representing an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2023 RSUs, including 93 DEUs, converted into common stock of the Issuer on a one-for-one basis."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On May 16, 2023, the Reporting Person was granted 8,478 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the applicable award agreement (the \"2023 RSUs\"). In connection with the vesting of the 2023 RSUs on May 14, 2024: (i) 0.0421 of the 2023 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU representing an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2023 RSUs, including 93 DEUs, converted into common stock of the Issuer on a one-for-one basis."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"On May 16, 2023, the Reporting Person was granted 8,478 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the applicable award agreement (the \"2023 RSUs\"). In connection with the vesting of the 2023 RSUs on May 14, 2024: (i) 0.0421 of the 2023 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU representing an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2023 RSUs, including 93 DEUs, converted into common stock of the Issuer on a one-for-one basis."}],"balance_after":76963,"source":{"system":"sec-edgar","filing":"0001047127-24-000102","document":"wk-form4_1715897603.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000104712724000102/wk-form4_1715897603.xml","form_type":"4"}},{"id":1528975,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Director Stock  Option (Right to Buy)","published_at":"2024-05-03T22:46:19.000Z","date":"2024-05-02","kind":"exercise","planned":false,"acquired":false,"shares":20000,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"This stock option to acquire 20,000 shares of Amkor Technology, Inc. (the \"Issuer\") common stock was granted on August 20, 2014 and vested in full on March 5, 2015."}],"balance_after":0,"derivative":{"exercise_price":9.87,"exercise_date":"2015-03-05","expiration_date":"2024-08-20","underlying":"Common Stock","underlying_shares":20000},"source":{"system":"sec-edgar","filing":"0001047127-24-000096","document":"wk-form4_1714776368.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000104712724000096/wk-form4_1714776368.xml","form_type":"4"}},{"id":1528974,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2024-05-03T22:46:19.000Z","date":"2024-05-02","kind":"exercise","planned":false,"acquired":true,"shares":20000,"price":9.87,"value":197400.0,"ownership":{"direct":true},"balance_after":68392,"source":{"system":"sec-edgar","filing":"0001047127-24-000096","document":"wk-form4_1714776368.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000104712724000096/wk-form4_1714776368.xml","form_type":"4"}},{"id":1550855,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2024-04-03T22:17:20.000Z","date":"2024-04-01","kind":"grant","planned":false,"acquired":true,"shares":20.9884,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on April 1, 2024. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on April 1, 2024. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on April 1, 2024. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."}],"balance_after":8571.0421,"derivative":{"underlying":"Common Stock","underlying_shares":20.9884},"source":{"system":"sec-edgar","filing":"0001047127-24-000075","document":"wk-form4_1712182628.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000104712724000075/wk-form4_1712182628.xml","form_type":"4"}},{"id":1699676,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2023-12-27T21:32:17.000Z","date":"2023-12-26","kind":"grant","planned":false,"acquired":true,"shares":19.5331,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on December 26, 2023. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on December 26, 2023. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on December 26, 2023. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."}],"balance_after":8550.0537,"derivative":{"underlying":"Common Stock","underlying_shares":19.5331},"source":{"system":"sec-edgar","filing":"0001047127-23-000066","document":"wk-form4_1703712724.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000104712723000066/wk-form4_1703712724.xml","form_type":"4"}},{"id":1772796,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2023-09-27T21:11:34.000Z","date":"2023-09-25","kind":"grant","planned":false,"acquired":true,"shares":28.3988,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on September 25, 2023. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"shares","element":"transactionShares","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on September 25, 2023. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on September 25, 2023. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on September 25, 2023. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on September 25, 2023. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."}],"balance_after":8530.5206,"derivative":{"underlying":"Common Stock","underlying_shares":28.3988},"source":{"system":"sec-edgar","filing":"0001209191-23-050673","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000120919123050673/doc4.xml","form_type":"4"}},{"id":1842913,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2023-06-28T22:43:33.000Z","date":"2023-06-26","kind":"grant","planned":false,"acquired":true,"shares":24.1218,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on June 26, 2023. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"shares","element":"transactionShares","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on June 26, 2023. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on June 26, 2023. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on June 26, 2023. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on June 26, 2023. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."}],"balance_after":8502.1218,"derivative":{"underlying":"Common Stock","underlying_shares":24.1218},"source":{"system":"sec-edgar","filing":"0001209191-23-040089","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000120919123040089/doc4.xml","form_type":"4"}},{"id":1887287,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2023-05-19T00:14:40.000Z","date":"2023-05-16","kind":"grant","planned":false,"acquired":true,"shares":8478,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Represents shares of common stock underlying RSUs granted on May 16, 2023 (the \"Grant Date\") pursuant to the Plan (the \"2023 RSUs\").  Subject to the terms and conditions of the applicable award agreement, the 2023 RSUs may be converted into common stock of the Issuer on a one-for-one basis and will vest in full on the earlier of the first anniversary of the Grant Date or the date of the Issuers first annual meeting of stockholders immediately following the Grant Date.   The 2023 RSUs were awarded for no consideration other than the Reporting Person's service as a director of the Issuer."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Represents shares of common stock underlying RSUs granted on May 16, 2023 (the \"Grant Date\") pursuant to the Plan (the \"2023 RSUs\").  Subject to the terms and conditions of the applicable award agreement, the 2023 RSUs may be converted into common stock of the Issuer on a one-for-one basis and will vest in full on the earlier of the first anniversary of the Grant Date or the date of the Issuers first annual meeting of stockholders immediately following the Grant Date.   The 2023 RSUs were awarded for no consideration other than the Reporting Person's service as a director of the Issuer."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Represents shares of common stock underlying RSUs granted on May 16, 2023 (the \"Grant Date\") pursuant to the Plan (the \"2023 RSUs\").  Subject to the terms and conditions of the applicable award agreement, the 2023 RSUs may be converted into common stock of the Issuer on a one-for-one basis and will vest in full on the earlier of the first anniversary of the Grant Date or the date of the Issuers first annual meeting of stockholders immediately following the Grant Date.   The 2023 RSUs were awarded for no consideration other than the Reporting Person's service as a director of the Issuer."}],"balance_after":8478,"derivative":{"underlying":"Common Stock","underlying_shares":8478},"source":{"system":"sec-edgar","filing":"0001209191-23-030845","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000120919123030845/doc4.xml","form_type":"4"}},{"id":1887286,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2023-05-19T00:14:40.000Z","date":"2023-05-16","kind":"exercise","planned":false,"acquired":false,"shares":8809.4075,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"On May 17, 2022, the Reporting Person was granted 8,706 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the applicable award agreement (the \"2022 RSUs\").  In connection with the vesting of the 2022 RSUs on May 16, 2023: (i) 0.4075 of the 2022 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU representing an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2022 RSUs, including 103 DEUs, converted into common stock of the Issuer on a one-for-one basis."},{"field":"shares","element":"transactionShares","label":"F1","text":"On May 17, 2022, the Reporting Person was granted 8,706 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the applicable award agreement (the \"2022 RSUs\").  In connection with the vesting of the 2022 RSUs on May 16, 2023: (i) 0.4075 of the 2022 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU representing an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2022 RSUs, including 103 DEUs, converted into common stock of the Issuer on a one-for-one basis."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"On May 17, 2022, the Reporting Person was granted 8,706 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the applicable award agreement (the \"2022 RSUs\").  In connection with the vesting of the 2022 RSUs on May 16, 2023: (i) 0.4075 of the 2022 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU representing an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2022 RSUs, including 103 DEUs, converted into common stock of the Issuer on a one-for-one basis."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"On May 17, 2022, the Reporting Person was granted 8,706 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the applicable award agreement (the \"2022 RSUs\").  In connection with the vesting of the 2022 RSUs on May 16, 2023: (i) 0.4075 of the 2022 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU representing an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2022 RSUs, including 103 DEUs, converted into common stock of the Issuer on a one-for-one basis."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F1","text":"On May 17, 2022, the Reporting Person was granted 8,706 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the applicable award agreement (the \"2022 RSUs\").  In connection with the vesting of the 2022 RSUs on May 16, 2023: (i) 0.4075 of the 2022 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU representing an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2022 RSUs, including 103 DEUs, converted into common stock of the Issuer on a one-for-one basis."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":8809.4075},"source":{"system":"sec-edgar","filing":"0001209191-23-030845","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000120919123030845/doc4.xml","form_type":"4"}},{"id":1887285,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2023-05-19T00:14:40.000Z","date":"2023-05-16","kind":"exercise","planned":false,"acquired":true,"shares":8809,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"On May 17, 2022, the Reporting Person was granted 8,706 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the applicable award agreement (the \"2022 RSUs\").  In connection with the vesting of the 2022 RSUs on May 16, 2023: (i) 0.4075 of the 2022 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU representing an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2022 RSUs, including 103 DEUs, converted into common stock of the Issuer on a one-for-one basis."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On May 17, 2022, the Reporting Person was granted 8,706 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the applicable award agreement (the \"2022 RSUs\").  In connection with the vesting of the 2022 RSUs on May 16, 2023: (i) 0.4075 of the 2022 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU representing an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2022 RSUs, including 103 DEUs, converted into common stock of the Issuer on a one-for-one basis."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"On May 17, 2022, the Reporting Person was granted 8,706 time-vested restricted stock units (\"RSUs\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan, as amended (the \"Plan\"), and the applicable award agreement (the \"2022 RSUs\").  In connection with the vesting of the 2022 RSUs on May 16, 2023: (i) 0.4075 of the 2022 RSUs, which had accrued as dividend equivalent units (\"DEUs\") with each DEU representing an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued, were settled in cash; and (ii) the remainder of the 2022 RSUs, including 103 DEUs, converted into common stock of the Issuer on a one-for-one basis."}],"balance_after":48392,"source":{"system":"sec-edgar","filing":"0001209191-23-030845","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000120919123030845/doc4.xml","form_type":"4"}},{"id":1942094,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2023-03-22T22:46:16.000Z","date":"2023-03-20","kind":"grant","planned":false,"acquired":true,"shares":26.1076,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on March 20, 2023. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"shares","element":"transactionShares","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on March 20, 2023. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on March 20, 2023. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on March 20, 2023. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on March 20, 2023. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."}],"balance_after":8809.4075,"derivative":{"underlying":"Common Stock","underlying_shares":26.1076},"source":{"system":"sec-edgar","filing":"0001209191-23-020621","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000120919123020621/doc4.xml","form_type":"4"}},{"id":2075143,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2022-12-29T22:30:58.000Z","date":"2022-12-27","kind":"grant","acquired":true,"shares":26.7602,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on December 27, 2022. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"shares","element":"transactionShares","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on December 27, 2022. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on December 27, 2022. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on December 27, 2022. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on December 27, 2022. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."}],"balance_after":8783.2999,"derivative":{"underlying":"Common Stock","underlying_shares":26.7602},"source":{"system":"sec-edgar","filing":"0001209191-22-062939","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000120919122062939/doc4.xml","form_type":"4"}},{"id":2150072,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2022-09-28T21:10:07.000Z","date":"2022-09-26","kind":"grant","acquired":true,"shares":25.9881,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on September 26, 2022. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"shares","element":"transactionShares","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on September 26, 2022. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on September 26, 2022. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on September 26, 2022. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F1","text":"Represents dividend equivalent units (\"DEUs\") accrued with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") upon the Issuer's payment of a dividend on September 26, 2022. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."}],"balance_after":8756.5397,"derivative":{"underlying":"Common Stock","underlying_shares":25.9881},"source":{"system":"sec-edgar","filing":"0001209191-22-051484","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000120919122051484/doc4.xml","form_type":"4"}},{"id":2219562,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2022-06-29T23:57:02.000Z","date":"2022-06-27","kind":"grant","acquired":true,"shares":24.5516,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Represents DEUs accrued with respect to the RSUs upon the Issuer's payment of a dividend on June 27, 2022. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"shares","element":"transactionShares","label":"F2","text":"Represents DEUs accrued with respect to the RSUs upon the Issuer's payment of a dividend on June 27, 2022. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"Represents DEUs accrued with respect to the RSUs upon the Issuer's payment of a dividend on June 27, 2022. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"Represents DEUs accrued with respect to the RSUs upon the Issuer's payment of a dividend on June 27, 2022. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.underlying_shares","element":"underlyingSecurityShares","label":"F2","text":"Represents DEUs accrued with respect to the RSUs upon the Issuer's payment of a dividend on June 27, 2022. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F1","text":"As previously reported in a Form 4 filed by the Reporting Person on May 19, 2022 (the \"Original Form 4\"), 8,706 shares of Amkor Technology, Inc. (the \"Issuer\") common stock underlying time-vested restricted stock units (the \"RSUs\") were granted to the Reporting Person on May 17, 2022. Pursuant to the award agreement for the RSUs, dividend equivalent units (\"DEUs\") accrue with respect to the RSUs when and as dividends are paid on the Issuer's common stock. In the Original Form 4, the RSUs were incorrectly reported in Table I. Table II, Column 9 of this Form 4 has been adjusted to include the RSUs and reflects the proper number of RSUs beneficially owned by the Reporting Person as of the filing date of this Form 4."}],"balance_after":8730.5516,"derivative":{"underlying":"Common Stock","underlying_shares":24.5516},"source":{"system":"sec-edgar","filing":"0001209191-22-039871","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000120919122039871/doc4.xml","form_type":"4"}},{"id":2264266,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2022-05-19T21:26:22.000Z","date":"2022-05-17","kind":"grant","acquired":true,"shares":8706,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","label":"F1","text":"Represents shares of Amkor Technology, Inc. (the \"Issuer\") common stock underlying time-vested restricted stock units granted on May 17, 2022 (the \"Grant Date\") pursuant to the Issuer's Equity Incentive Plan (the \"RSUs\").  Subject to the terms and conditions of the applicable award agreement, the RSUs will vest in full on the earlier of the first anniversary of the Grant Date or the date of the Issuer's first annual meeting of the stockholders immediately following the Grant Date.  The RSUs were awarded for no consideration other than the Reporting Person's service as a director of the Issuer."}],"balance_after":48289,"source":{"system":"sec-edgar","filing":"0001209191-22-030659","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000120919122030659/doc4.xml","form_type":"4"}},{"id":2295803,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"officer":true,"officer_title":"CEO - Comcast Cable"}}],"security":"Restricted Stock Units","published_at":"2022-04-18T19:00:58.000Z","date":"2022-04-14","kind":"exercise","acquired":false,"shares":33660,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Each restricted stock unit represents a contigent right to receive one share of Class A Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"These restricted stock units vest on the transaction date."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"These restricted stock units vest on the transaction date."}],"balance_after":175335,"derivative":{"underlying":"Class A Common Stock","underlying_shares":33660},"source":{"system":"sec-edgar","filing":"0001225208-22-005865","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/1166691/000122520822005865/doc4.xml","form_type":"4"}},{"id":2295802,"issuer":{"id":1651,"kind":"organization","name":"COMCAST CORP","symbol":"CMCSA"},"owners":[{"id":35458,"kind":"person","name":"WATSON DAVID N","position":1,"cik":"0001276908","reported_name":"WATSON DAVID N","relationship":{"officer":true,"officer_title":"CEO - 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