Form 4: Amkor Director Kim Transfers Millions in Shares to Trusts

Amkor Technology Director James J. Kim and his spouse transferred over 5.7 million shares of common stock to grantor retained annuity trusts.

Summary

• James J. Kim, a Director and 10% Owner of Amkor Technology, Inc. (AMKR), reported changes in beneficial ownership of common stock.
• On December 19, 2025, James J. Kim distributed 3,244,594 shares of Amkor common stock to the 2025 Grantor Retained Annuity Trust No. 1 of James J. Kim.
• On the same date, his spouse, Agnes C. Kim, distributed 2,538,000 shares of Amkor common stock to the 2025 Grantor Retained Annuity Trust No. 1 of Agnes C. Kim.
• Both trusts have Susan Y. Kim as the sole trustee.
• Following these transactions, James J. Kim directly beneficially owns 61,645 shares.
• Indirect beneficial ownership includes 7,828,682 shares via the John T. Kim Family Trust U/A dtd. 12/11/12, 1,957,350 shares via the John T. Kim G-S Trust dtd. 12/11/12, and 164,678 shares as Trustee of Trust U/A dtd. 12/11/12.
• The filing also corrected an inadvertent reporting error from November 24, 2025, clarifying that 965,000 shares previously reported as indirectly held by the James J. Kim 2018-1 Qualified Annuity Trust U/A were, in fact, direct holdings of James J. Kim as settlor, sole trustee, and sole beneficiary of the James J. Kim Revocable Trust dtd 08/30/2018.

Sentiment

Score: 5

Explanation: Neutral, as the filing reports routine insider transactions for estate planning purposes, not operational performance or significant strategic shifts.

Future Outlook

The filing does not contain any forward-looking statements or guidance regarding the company's future performance or outlook.

Management Comments

• The Reporting Person disclaims beneficial ownership of certain securities, except to the extent of their pecuniary interest therein, and states that the report shall not be deemed an admission of beneficial ownership for Section 16 purposes or any other purpose.
• The Reporting Person clarifies their role as a trustee for trusts benefiting immediate family members, which collectively own 9,786,032 shares, and as a trustee of a trust that is a controlling member of a limited liability company holding 164,678 shares, acknowledging a pecuniary interest in all such shares.
• The Reporting Person states that the filing of this Form 4 shall not be deemed an admission that they are the beneficial owner of reported securities owned by other members of the 10% owner group, for the purpose of Section 16 or for any other purpose.

Industry Context

This filing reports routine insider transactions related to estate planning by a director and his spouse. Such transfers to trusts are common among high-net-worth individuals for tax and estate management purposes and do not typically reflect broader industry trends or competitive positioning.

Related Party Transactions

• James J. Kim distributed 3,244,594 shares of common stock to the 2025 Grantor Retained Annuity Trust No. 1 of James J. Kim, where Susan Y. Kim is the sole trustee.
• Agnes C. Kim (spouse of James J. Kim) distributed 2,538,000 shares of common stock to the 2025 Grantor Retained Annuity Trust No. 1 of Agnes C. Kim, where Susan Y. Kim is also the sole trustee.
• James J. Kim is a trustee of trusts for the benefit of his immediate family members, which own 9,786,032 shares, and a trustee of a trust that is a controlling member of a limited liability company holding 164,678 shares.

Stakeholder Impact

• Shareholders: Minimal direct impact as these are internal ownership restructurings for estate planning and do not affect the company's operational performance or public float significantly.
• Employees, Customers, Suppliers, Creditors: No direct impact from these insider ownership changes.

Key Dates

Recommendation

The Form 4 filing details routine insider transactions related to estate planning by a director and his spouse, involving transfers of common stock to grantor retained annuity trusts. These transactions do not reflect changes in the company's operational performance, financial health, or strategic direction, and therefore do not provide a basis for altering an existing investment thesis. The disclaimers regarding beneficial ownership are standard for such filings.

Keywords

Amkor Technology, AMKR, James J. Kim, Form 4, beneficial ownership, stock transfer, trust, estate planning, insider transaction