Reported relationships
Latest disclosed role at each company.
No relationships currently tracked through insider filings.
Disclosed balances
About these balances
Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.
No balances currently tracked through insider filings.
Past disclosures · reporting ended (1)
No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.
AMKOR TECHNOLOGY, INC.
Report date August 01, 2025 · Filed August 05, 2025
Section 16 reporting ended · disclosed 2017-01-17. Current position is not established by this disclosure.
| Security / award | Ownership account | Disclosed shares / units | Disclosure context |
|---|---|---|---|
| Common StockSEC Table I · non-derivative | IndirectBy Sujoda Investments, LP | 3,789,479 |
Reported balance
After 2025-08-01 transaction · row 1
Account identity is unresolved; indirect or unspecified ownership is not merged.
1 source rowRow 1 · 2025-08-01 · Purchase · Acquired 441,589 · Balance 3,789,479 F1: On August 1, 2025, James J. Kim distributed 441,589 shares of the Common Stock of Amkor Technology, Inc. (the "Issuer") to Sujoda Investments, LP pursuant to the terms of a transaction between members of the Kim family group. F2: The sole general partner of Sujoda Investments, LP is Sujoda Management, LLC. The Reporting Person is one of three members of Sujoda Management, LLC. Sujoda Management, LLC is being treated as a limited partnership for purposes of Section 16, and, pursuant to the Form 4 instructions, the Reporting Person has elected to treat all of the shares of the Issuer's Common Stock owned by Sujoda Investments, LP as beneficially owned by the Reporting Person. F3: The Reporting Person disclaims beneficial ownership of these securities, except to the extent of the Reporting Person's pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities, except to the extent of the Reporting Person's pecuniary interest therein, for purposes of Section 16 of the Securities Exchange Act of 1934, as amended ("Section 16"), or for any other purpose. |
| Common StockSEC Table I · non-derivative | Direct | 8,746 |
Reported balance
Holding disclosure · report date 2025-08-01 · row 2
Holding and transaction disclosures are not merged.
1 source rowRow 2 · Balance 8,746 |
| Common StockSEC Table I · non-derivative | IndirectBy trusts | 2,698,513 |
Reported balance
Holding disclosure · report date 2025-08-01 · row 3
Holding and transaction disclosures are not merged.
1 source rowRow 3 · Balance 2,698,513 F3: The Reporting Person disclaims beneficial ownership of these securities, except to the extent of the Reporting Person's pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities, except to the extent of the Reporting Person's pecuniary interest therein, for purposes of Section 16 of the Securities Exchange Act of 1934, as amended ("Section 16"), or for any other purpose. F4: The Reporting Person is a trustee of family trusts for the benefit of his immediate family members which own 2,698,513 shares of the Issuer's Common Stock. |
Filing footnotes · ownership attribution and instrument terms
F1: On August 1, 2025, James J. Kim distributed 441,589 shares of the Common Stock of Amkor Technology, Inc. (the "Issuer") to Sujoda Investments, LP pursuant to the terms of a transaction between members of the Kim family group.
F2: The sole general partner of Sujoda Investments, LP is Sujoda Management, LLC. The Reporting Person is one of three members of Sujoda Management, LLC. Sujoda Management, LLC is being treated as a limited partnership for purposes of Section 16, and, pursuant to the Form 4 instructions, the Reporting Person has elected to treat all of the shares of the Issuer's Common Stock owned by Sujoda Investments, LP as beneficially owned by the Reporting Person.
F3: The Reporting Person disclaims beneficial ownership of these securities, except to the extent of the Reporting Person's pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities, except to the extent of the Reporting Person's pecuniary interest therein, for purposes of Section 16 of the Securities Exchange Act of 1934, as amended ("Section 16"), or for any other purpose.
F4: The Reporting Person is a trustee of family trusts for the benefit of his immediate family members which own 2,698,513 shares of the Issuer's Common Stock.
Transaction history
JSON APIPurchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”
The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.
| Transaction date | Company | Activity / security | Shares / units | Reported price | Reported value | Details |
|---|---|---|---|---|---|---|
| August 01, 2025 Filed Aug 5, 2025 23:27 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | PurchaseCommon Stock | 441,589 | $21.85 | $9,648,719.65 |
DisclosureSEC source: 0001158924-25-000005 · wk-form4_1754436465.xml · nonDerivative · entry 1 KIM DAVID D · CIK 0001158924 · Member of 10% owner group (5) 10b5-1 filing: No plan indicated Ownership: Indirect · By Sujoda Investments, LP Disclosed balance after: 3,789,479 F1 · shares: On August 1, 2025, James J. Kim distributed 441,589 shares of the Common Stock of Amkor Technology, Inc. (the "Issuer") to Sujoda Investments, LP pursuant to the terms of a transaction between members of the Kim family group. F2 · balance_after: The sole general partner of Sujoda Investments, LP is Sujoda Management, LLC. The Reporting Person is one of three members of Sujoda Management, LLC. Sujoda Management, LLC is being treated as a limited partnership for purposes of Section 16, and, pursuant to the Form 4 instructions, the Reporting Person has elected to treat all of the shares of the Issuer's Common Stock owned by Sujoda Investments, LP as beneficially owned by the Reporting Person. F3 · balance_after: The Reporting Person disclaims beneficial ownership of these securities, except to the extent of the Reporting Person's pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities, except to the extent of the Reporting Person's pecuniary interest therein, for purposes of Section 16 of the Securities Exchange Act of 1934, as amended ("Section 16"), or for any other purpose. Read SEC document |
| February 24, 2025 Filed Feb 26, 2025 22:31 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | PurchaseCommon Stock | 869,565 | $21.85 | $18,999,995.25 |
DisclosureSEC source: 0001158924-25-000002 · wk-form4_1740609053.xml · nonDerivative · entry 1 KIM DAVID D · CIK 0001158924 · Member of 10% owner group (5) 10b5-1 filing: No plan indicated Ownership: Indirect · By Sujoda Investments, LP Disclosed balance after: 3,347,890 F1 · shares: On February 24, 2025, James J. Kim distributed 869,565 shares of the Common Stock of Amkor Technology, Inc. (the "Issuer") to Sujoda Investments, LP pursuant to the terms of a transaction between members of the Kim family group. F2 · balance_after: The sole general partner of Sujoda Investments, LP is Sujoda Management, LLC. The Reporting Person is one of three members of Sujoda Management, LLC. Sujoda Management, LLC is being treated as a limited partnership for purposes of Section 16, and, pursuant to the Form 4 instructions, the Reporting Person has elected to treat all of the shares of the Issuer's Common Stock owned by Sujoda Investments, LP as beneficially owned by the Reporting Person. F3 · balance_after: The Reporting Person disclaims beneficial ownership of these securities, except to the extent of the Reporting Person's pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities, except to the extent of the Reporting Person's pecuniary interest therein, for purposes of Section 16 of the Securities Exchange Act of 1934, as amended ("Section 16"), or for any other purpose. Read SEC document |
| December 30, 2021 Filed Jan 3, 2022 22:23 UTC | AMKOR TECHNOLOGY, INC. amkr · Entity 3481 | SaleCommon Stock | 1,337,332 | $24.68 | $33,005,353.76 |
DisclosureSEC source: 0001158924-22-000001 · primary_doc.xml · nonDerivative · entry 4 KIM DAVID D · CIK 0001158924 · Member of 10% owner group (7) 10b5-1 filing: Not disclosed Ownership: Indirect · By Sujoda Investments, LP Disclosed balance after: 2,478,325 F3 · kind: On December 30, 2021, Suloda Investments, LP transferred 668,666 shares of the Issue's Common Stock to Agnes C. Kim and 668,666 shares of the Issuer's Common Stock to James J. Kim in partial payment of the principal of a joint Note. F4 · balance_after: The sole general partner of Sujoda Investments, LP is Sujoda Management, LLC. The reporting person is one of three members of Sujoda Management, LLC. Sujoda Management, LLC is being treated as a limited partnership for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, and the reporting person has elected to treat all of the shares of the Issuer's Common Stock owned by Sujoda Investments, LP as beneficially owned by the reporting person. F6 · balance_after: The reporting person disclaims beneficial ownership of these securities, except to the extent of the reporting person's pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities, except to the extent of the reporting person's pecuniary interest therein, for purposes of Section 16, or for any other purpose. Read SEC document |
| December 30, 2021 Filed Jan 3, 2022 22:23 UTC | AMKOR TECHNOLOGY, INC. amkr · Entity 3481 | SaleCommon Stock | 1,187,087 | $24.68 | $29,297,307.16 |
DisclosureSEC source: 0001158924-22-000001 · primary_doc.xml · nonDerivative · entry 2 KIM DAVID D · CIK 0001158924 · Member of 10% owner group (7) 10b5-1 filing: Not disclosed Ownership: Indirect · By Sujoda Investments, LP Disclosed balance after: 3,815,657 F2 · kind: On December 30, 2021, Sujoda Investments, LP transferred 1,187,087 shares of the Issue's Common Stock to James J. Kim in payment of the principal of a Note. F4 · balance_after: The sole general partner of Sujoda Investments, LP is Sujoda Management, LLC. The reporting person is one of three members of Sujoda Management, LLC. Sujoda Management, LLC is being treated as a limited partnership for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, and the reporting person has elected to treat all of the shares of the Issuer's Common Stock owned by Sujoda Investments, LP as beneficially owned by the reporting person. F6 · balance_after: The reporting person disclaims beneficial ownership of these securities, except to the extent of the reporting person's pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities, except to the extent of the reporting person's pecuniary interest therein, for purposes of Section 16, or for any other purpose. Read SEC document |
| December 30, 2021 Filed Jan 3, 2022 22:23 UTC | AMKOR TECHNOLOGY, INC. amkr · Entity 3481 | SaleCommon Stock | 1,187,087 | $24.68 | $29,297,307.16 |
DisclosureSEC source: 0001158924-22-000001 · primary_doc.xml · nonDerivative · entry 1 KIM DAVID D · CIK 0001158924 · Member of 10% owner group (7) 10b5-1 filing: Not disclosed Ownership: Indirect · By Sujoda Investments, LP Disclosed balance after: 5,002,744 F1 · kind: On December 30, 2021, Sujoda Investments, LP transferred 1,187,087 shares of the Issuer's Common Stock to Agnes C. Kim in payment of the principal of a Note. F4 · balance_after: The sole general partner of Sujoda Investments, LP is Sujoda Management, LLC. The reporting person is one of three members of Sujoda Management, LLC. Sujoda Management, LLC is being treated as a limited partnership for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, and the reporting person has elected to treat all of the shares of the Issuer's Common Stock owned by Sujoda Investments, LP as beneficially owned by the reporting person. F6 · balance_after: The reporting person disclaims beneficial ownership of these securities, except to the extent of the reporting person's pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities, except to the extent of the reporting person's pecuniary interest therein, for purposes of Section 16, or for any other purpose. Read SEC document |
| January 15, 2021 Filed Dec 28, 2021 21:38 UTC | AMKOR TECHNOLOGY, INC. amkr · Entity 3481 | SaleCommon Stock | 6,895 | $18.04 | $124,414.07 |
DisclosureSEC source: 0001158924-21-000004 · primary_doc.xml · nonDerivative · entry 1 KIM DAVID D · CIK 0001158924 · Exhibit 99.1 10b5-1 filing: Not disclosed Ownership: Indirect · By self as trustee Disclosed balance after: 2,691,618 F1 · kind: On January 15, the reporting person sold 6,895 shares of the Issuer's Common Stock. F2 · balance_after: The reporting person may be deemed to indirectly own 2,691,618 shares of the Issuer's Common Stock held through various family trusts of which the reporting person is a trustee and 6,189,331 shares of the Issuer's Common Stock held by by Sujoda Investments, L.P., a limited partnership established for the benefit of members of the James J. Kim family of which the reporting person is a general partner. The reporting person disclaims beneficial ownership of these securities, except to the extent of the reporting person's pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities, except to the extent of the reporting person's pecuniary interest therein, for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose. Read SEC document |
| March 16, 2020 Filed Feb 16, 2021 13:47 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | GiftCommon Stock | 15,641 | $7.47 | $116,838.27 |
DisclosureSEC source: 0000899243-21-006546 · doc5.xml · nonDerivative · entry 1 KIM DAVID D · CIK 0001158924 · Exhibit 99.1 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 15,641 F1 · kind: On March 16, 2020, the James J. Kim Qualified Annuity Trust U/A Dated 10/13/14 distributed 15,641 shares of the Issuer's Common Stock to each of Susan Y. Kim, John T. Kim and David D. Kim. James J. Kim and Susan Y. Kim are co-trustees. Read SEC document |
| January 12, 2017 Filed Jan 17, 2017 19:58 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | SaleCommon Stock | 19,484,809 | Not disclosed | Not disclosed |
DisclosureSEC source: 0000899243-17-001318 · doc4.xml · nonDerivative · entry 2 DAVID D KIM TRUST OF 12/31/87 · CIK 0001158842 · See Exhibit 99.1 KIM DAVID D · CIK 0001158924 · See Exhibit 99.1 Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Indirect · See footnote Disclosed balance after: 0 F1 · kind: This report is filed jointly by David D. Kim and the David D. Kim Trust dated 12/31/87 (the "Trust"). David D. Kim is the sole trustee of the Trust. On January 12, 2017, the Trust sold 19,484,809 shares of the Company's Common Stock to a newly created Pennsylvania limited partnership, Sujochil, LP, at a price of $10.8984 per share. F1 · price: This report is filed jointly by David D. Kim and the David D. Kim Trust dated 12/31/87 (the "Trust"). David D. Kim is the sole trustee of the Trust. On January 12, 2017, the Trust sold 19,484,809 shares of the Company's Common Stock to a newly created Pennsylvania limited partnership, Sujochil, LP, at a price of $10.8984 per share. F2 · ownership.nature: Held indirectly by David D. Kim, the trustee of the Trust. Read SEC document |
| January 12, 2017 Filed Jan 17, 2017 19:58 UTC | AMKOR TECHNOLOGY, INC. AMKR · Entity 3481 | SaleCommon Stock | 19,484,809 | Not disclosed | Not disclosed |
DisclosureSEC source: 0000899243-17-001318 · doc4.xml · nonDerivative · entry 1 DAVID D KIM TRUST OF 12/31/87 · CIK 0001158842 · See Exhibit 99.1 KIM DAVID D · CIK 0001158924 · See Exhibit 99.1 Joint disclosure: these amounts are not allocated separately to each reporting owner. 10b5-1 filing: Not disclosed Ownership: Direct Disclosed balance after: 0 F1 · kind: This report is filed jointly by David D. Kim and the David D. Kim Trust dated 12/31/87 (the "Trust"). David D. Kim is the sole trustee of the Trust. On January 12, 2017, the Trust sold 19,484,809 shares of the Company's Common Stock to a newly created Pennsylvania limited partnership, Sujochil, LP, at a price of $10.8984 per share. F1 · price: This report is filed jointly by David D. Kim and the David D. Kim Trust dated 12/31/87 (the "Trust"). David D. Kim is the sole trustee of the Trust. On January 12, 2017, the Trust sold 19,484,809 shares of the Company's Common Stock to a newly created Pennsylvania limited partnership, Sujochil, LP, at a price of $10.8984 per share. F1 · ownership.direct: This report is filed jointly by David D. Kim and the David D. Kim Trust dated 12/31/87 (the "Trust"). David D. Kim is the sole trustee of the Trust. On January 12, 2017, the Trust sold 19,484,809 shares of the Company's Common Stock to a newly created Pennsylvania limited partnership, Sujochil, LP, at a price of $10.8984 per share. Read SEC document |
Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.