Form 4 for AMKR AMKOR TECHNOLOGY, INC.
Accepted 2025-12-23 00:00:00 ET · period of report 2025-12-19 · accession 0001158839-25-000015 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| I | 2025-12-23 | 2025-12-19 | AMKR | KIM JAMES J | 10%, Member of 10% owner group (6) | G - Gift | $0.00 | -2.54M | 0 | -100% | $0 |
| 2025-12-23 | 2025-12-19 | AMKR | KIM JAMES J | 10%, Member of 10% owner group (6) | G - Gift | $0.00 | -3.24M | 61.6K | -98% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2025-12-19 | G | D | 2,538,000 | $0.00 | 0 | I | — | — | (F3) On December 19, 2025, the spouse of the Reporting Person, Agnes C. Kim, made a distribution of 2,538,000 shares of common stock of the Issuer to the 2025 Grantor Retained Annuity Trust No. 1 of Agnes C. Kim. Susan Y. Kim is the sole trustee of the 2025 Grantor Retained Annuity Trust No. 1 of Agnes C. Kim. |
| 2 | Common | Common Stock | 2025-12-19 | G | D | 3,244,594 | $0.00 | 61,645 | D By Spouse | — | — | (F1) On November 24, 2025, the Reporting Person reported that the 2024 Grantor Retained Annuity Trust of John J. Kim 8/5/2024 distributed 965,000 shares of the Common Stock of Amkor Technology, Inc. (the "Issuer") to the James J. Kim Revocable Trust dtd 08/30/2018. These shares were inadvertently reported as being held indirectly by the James J. Kim 2018-1 Qualified Annuity Trust U/A on a Form 4 filed by the Reporting Person on November 24, 2025. These shares were direct holdings of the Reporting Person, as the Reporting Person is the settlor, sole trustee, and sole beneficiary of such trust. (F2) On December 19, 2025, the Reporting Person made a distribution of 3,244,594 shares of common stock of the Issuer to the 2025 Grantor Retained Annuity Trust No. 1 of James J. Kim. Susan Y. Kim is the sole trustee of the 2025 Grantor Retained Annuity Trust No.1 of James J. Kim. |