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Subject to the terms and conditions of the applicable award agreement, the 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. 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(the \"Issuer\") granted to the Reporting Person on May 17, 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":9204.4883,"derivative":{"underlying":"Common Stock","underlying_shares":24.3374},"source":{"system":"sec-edgar","filing":"0001628280-25-042829","document":"wk-form4_1758833073.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000162828025042829/wk-form4_1758833073.xml","form_type":"4"}},{"id":1100554,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":24735,"kind":"person","name":"ALEXANDER DOUGLAS A","position":1,"cik":"0001195858","reported_name":"ALEXANDER DOUGLAS A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2025-06-27T21:59:55.000Z","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":"F3","text":"Represents DEUs accrued upon the payment of a dividend on June 25, 2025 with respect to RSUs of the Issuer granted to the Reporting Person on May 15, 2025. Each DEU represents an additional\nRSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F3","text":"Represents DEUs accrued upon the payment of a dividend on June 25, 2025 with respect to RSUs of the Issuer granted to the Reporting Person on May 15, 2025. Each DEU represents an additional\nRSU subject to the same provisions as the RSU with respect to which the DEU was accrued."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"Represents DEUs accrued upon the payment of a dividend on June 25, 2025 with respect to RSUs of the Issuer granted to the Reporting Person on May 15, 2025. Each DEU represents an additional\nRSU 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":"0001047127-25-000148","document":"wk-form4_1751061589.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000104712725000148/wk-form4_1751061589.xml","form_type":"4"}},{"id":1100553,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":24735,"kind":"person","name":"ALEXANDER DOUGLAS A","position":1,"cik":"0001195858","reported_name":"ALEXANDER DOUGLAS A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2025-06-27T21:59:55.000Z","date":"2025-06-25","kind":"grant","planned":false,"acquired":true,"shares":33.3674,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Represents DEUs accrued upon the payment of a dividend on June 25, 2025 with respect to RSUs of the Issuer granted to the Reporting Person on May 16, 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":"F2","text":"Represents DEUs accrued upon the payment of a dividend on June 25, 2025 with respect to RSUs of the Issuer granted to the Reporting Person on May 16, 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":"F2","text":"Represents DEUs accrued upon the payment of a dividend on June 25, 2025 with respect to RSUs of the Issuer granted to the Reporting Person on May 16, 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":8839.034,"derivative":{"underlying":"Common Stock","underlying_shares":33.3674},"source":{"system":"sec-edgar","filing":"0001047127-25-000148","document":"wk-form4_1751061589.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000104712725000148/wk-form4_1751061589.xml","form_type":"4"}},{"id":1100552,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":24735,"kind":"person","name":"ALEXANDER DOUGLAS A","position":1,"cik":"0001195858","reported_name":"ALEXANDER DOUGLAS A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2025-06-27T21:59:55.000Z","date":"2025-06-25","kind":"grant","planned":false,"acquired":true,"shares":34.2646,"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 Amkor Technology, Inc. (the \"Issuer\") granted to the Reporting Person on May 17, 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 upon the payment of a dividend on June 25, 2025 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") granted to the Reporting Person on May 17, 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 upon the payment of a dividend on June 25, 2025 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") granted to the Reporting Person on May 17, 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":9180.1509,"derivative":{"underlying":"Common Stock","underlying_shares":34.2646},"source":{"system":"sec-edgar","filing":"0001047127-25-000148","document":"wk-form4_1751061589.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000104712725000148/wk-form4_1751061589.xml","form_type":"4"}},{"id":1145954,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":24735,"kind":"person","name":"ALEXANDER DOUGLAS A","position":1,"cik":"0001195858","reported_name":"ALEXANDER DOUGLAS A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2025-05-16T20:34:57.000Z","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":"0001047127-25-000105","document":"wk-form4_1747427655.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000104712725000105/wk-form4_1747427655.xml","form_type":"4"}},{"id":1145953,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":24735,"kind":"person","name":"ALEXANDER DOUGLAS A","position":1,"cik":"0001195858","reported_name":"ALEXANDER DOUGLAS A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2025-05-16T20:34:57.000Z","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\n(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\nequivalent 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\nremainder 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\n(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\nequivalent 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\nremainder 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\n(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\nequivalent 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\nremainder 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\n(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\nequivalent 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\nremainder 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\n(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\nequivalent 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\nremainder 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":"0001047127-25-000105","document":"wk-form4_1747427655.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000104712725000105/wk-form4_1747427655.xml","form_type":"4"}},{"id":1145952,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":24735,"kind":"person","name":"ALEXANDER DOUGLAS A","position":1,"cik":"0001195858","reported_name":"ALEXANDER DOUGLAS A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Common Stock","published_at":"2025-05-16T20:34:57.000Z","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\n(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\nequivalent 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\nremainder 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\n(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\nequivalent 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\nremainder 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\n(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\nequivalent 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\nremainder of the 2024 RSUs, including 162 DEUs, converted into common stock of the Issuer on a one-for-one basis."}],"balance_after":29109,"source":{"system":"sec-edgar","filing":"0001047127-25-000105","document":"wk-form4_1747427655.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000104712725000105/wk-form4_1747427655.xml","form_type":"4"}},{"id":1177888,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":24735,"kind":"person","name":"ALEXANDER DOUGLAS A","position":1,"cik":"0001195858","reported_name":"ALEXANDER DOUGLAS A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2025-04-04T20:07:52.000Z","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":"F3","text":"Represents DEUs accrued upon the payment of a dividend on April 2, 2025 with respect to RSUs of 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":"F3","text":"Represents DEUs accrued upon the payment of a dividend on April 2, 2025 with respect to RSUs of 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":"F3","text":"Represents DEUs accrued upon the payment of a dividend on April 2, 2025 with respect to RSUs of 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":"0001047127-25-000066","document":"wk-form4_1743797265.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":3,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000104712725000066/wk-form4_1743797265.xml","form_type":"4"}},{"id":1177887,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":24735,"kind":"person","name":"ALEXANDER DOUGLAS A","position":1,"cik":"0001195858","reported_name":"ALEXANDER DOUGLAS A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2025-04-04T20:07:52.000Z","date":"2025-04-02","kind":"grant","planned":false,"acquired":true,"shares":37.6302,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F2","text":"Represents DEUs accrued upon the payment of a dividend on April 2, 2025 with respect to RSUs of the Issuer granted to the Reporting Person on May 16, 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":"F2","text":"Represents DEUs accrued upon the payment of a dividend on April 2, 2025 with respect to RSUs of the Issuer granted to the Reporting Person on May 16, 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":"F2","text":"Represents DEUs accrued upon the payment of a dividend on April 2, 2025 with respect to RSUs of the Issuer granted to the Reporting Person on May 16, 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":8805.6666,"derivative":{"underlying":"Common Stock","underlying_shares":37.6302},"source":{"system":"sec-edgar","filing":"0001047127-25-000066","document":"wk-form4_1743797265.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000104712725000066/wk-form4_1743797265.xml","form_type":"4"}},{"id":1177886,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":24735,"kind":"person","name":"ALEXANDER DOUGLAS A","position":1,"cik":"0001195858","reported_name":"ALEXANDER DOUGLAS A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2025-04-04T20:07:52.000Z","date":"2025-04-02","kind":"grant","planned":false,"acquired":true,"shares":38.642,"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. (the \"Issuer\") granted to the Reporting Person on May 17, 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 upon the payment of a dividend on April 2, 2025 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") granted to the Reporting Person on May 17, 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 upon the payment of a dividend on April 2, 2025 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") granted to the Reporting Person on May 17, 2022. 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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":"F3","text":"Represents DEUs accrued upon the payment of a dividend on December 23, 2024 with respect to RSUs of 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":"F3","text":"Represents DEUs accrued upon the payment of a dividend on December 23, 2024 with respect to RSUs of the Issuer granted to the Reporting Person on May 14, 2024. 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(the \"Issuer\") granted to the Reporting Person on May 17, 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 upon the payment of a dividend on December 26, 2023 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") granted to the Reporting Person on May 17, 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 upon the payment of a dividend on December 26, 2023 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") granted to the Reporting Person on May 17, 2022. 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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 upon the payment of a dividend on September 25, 2023 with respect to RSUs of the Issuer granted to the Reporting Person on May 16, 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":"F2","text":"Represents DEUs accrued upon the payment of a dividend on September 25, 2023 with respect to RSUs of the Issuer granted to the Reporting Person on May 16, 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":"F2","text":"Represents DEUs accrued upon the payment of a dividend on September 25, 2023 with respect to RSUs of the Issuer granted to the Reporting Person on May 16, 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":"F2","text":"Represents DEUs accrued upon the payment of a dividend on September 25, 2023 with respect to RSUs of the Issuer granted to the Reporting Person on May 16, 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":"0001209191-23-050665","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000120919123050665/doc4.xml","form_type":"4"}},{"id":1772788,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":24735,"kind":"person","name":"ALEXANDER DOUGLAS A","position":1,"cik":"0001195858","reported_name":"ALEXANDER DOUGLAS A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2023-09-27T21:03:35.000Z","date":"2023-09-25","kind":"grant","planned":false,"acquired":true,"shares":29.1626,"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 25, 2023 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. 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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 25, 2023 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") granted to the Reporting Person on May 17, 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 upon the payment of a dividend on September 25, 2023 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. (the \"Issuer\") granted to the Reporting Person on May 17, 2022. 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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 upon the payment of a dividend on June 26, 2023 with respect to RSUs of the Issuer granted to the Reporting Person on May 16, 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":"F2","text":"Represents DEUs accrued upon the payment of a dividend on June 26, 2023 with respect to RSUs of the Issuer granted to the Reporting Person on May 16, 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":"F2","text":"Represents DEUs accrued upon the payment of a dividend on June 26, 2023 with respect to RSUs of the Issuer granted to the Reporting Person on May 16, 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":"F2","text":"Represents DEUs accrued upon the payment of a dividend on June 26, 2023 with respect to RSUs of the Issuer granted to the Reporting Person on May 16, 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":"0001209191-23-040073","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000120919123040073/doc4.xml","form_type":"4"}},{"id":1842906,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":24735,"kind":"person","name":"ALEXANDER DOUGLAS A","position":1,"cik":"0001195858","reported_name":"ALEXANDER DOUGLAS A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2023-06-28T22:29:42.000Z","date":"2023-06-26","kind":"grant","planned":false,"acquired":true,"shares":24.7705,"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 26,2023 with respect to time-vested restricted stock units (\"RSUs\") of Amkor Technology, Inc. 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Subject to the terms and conditions of the applicable award agreement, the RSUs: (i) may be converted into common stock of the Issuer on a one-for-one basis; (ii) 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; and (iii) will be settled on the sixth anniversary of the Grant Date in accordance with the terms of an irrevocable deferral agreement and distribution election made pursuant to the Plan. The 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":"F1","text":"Represents shares of common stock underlying time-vested restricted stock units (\"RSUs\") granted on May 16, 2023 (the \"Grant Date\") pursuant to the Amkor Technology, Inc. (the \"Issuer\") 2021 Equity Incentive Plan.  Subject to the terms and conditions of the applicable award agreement, the RSUs: (i) may be converted into common stock of the Issuer on a one-for-one basis; (ii) 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; and (iii) will be settled on the sixth anniversary of the Grant Date in accordance with the terms of an irrevocable deferral agreement and distribution election made pursuant to the Plan. 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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":"0001209191-23-020608","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1047127/000120919123020608/doc4.xml","form_type":"4"}},{"id":2075136,"issuer":{"id":3481,"kind":"organization","name":"AMKOR TECHNOLOGY, INC.","symbol":"AMKR"},"owners":[{"id":24735,"kind":"person","name":"ALEXANDER DOUGLAS A","position":1,"cik":"0001195858","reported_name":"ALEXANDER DOUGLAS A","relationship":{"director":true,"officer":false,"ten_percent_owner":false,"other":false}}],"security":"Restricted Stock Units","published_at":"2022-12-29T22:25:36.000Z","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. 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