Form 4: Amkor Technology Insider Reports Trust Share Transfer

James J. Kim, a director and 10% owner of Amkor Technology, reported the indirect acquisition of 725,000 common shares through a family trust distribution.

Summary

• James J. Kim, a Director and 10% Owner of Amkor Technology, Inc. (AMKR), reported a transaction on December 26, 2025.
• The transaction involved the acquisition of 725,000 shares of Amkor Technology Common Stock at a price of $0 per share.
• This acquisition was a distribution (Transaction Code G) from the 2023 Grantor Retained Annuity Trust dated 9/15/2023 to the Susan Y. Kim 2023 Family Distribution Trust.
• James J. Kim is a co-trustee of the Susan Y. Kim 2023 Family Distribution Trust, which received the shares.
• Following this transaction, James J. Kim's indirect beneficial ownership includes 725,000 shares via the Susan Y. Kim 2023 Family Distribution Trust.
• Additional indirect holdings include 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 via a trust where he serves as trustee.
• The reporting person disclaims beneficial ownership of these securities, except to the extent of their pecuniary interest therein.

Sentiment

Score: 5

Explanation: This Form 4 reports an internal trust distribution of shares, which is a neutral event for the company's operational performance. While it increases indirect insider holdings, it's a non-cash transfer within family trusts and does not reflect a market transaction or new operational information.

Positives

• Indirect acquisition of 725,000 shares of Amkor Technology common stock by a trust where James J. Kim is a co-trustee, potentially increasing insider alignment with shareholder interests.

Negatives

• No direct negative impacts on company operations or financial health are indicated by this insider transaction.

Risks

• The reporting person disclaims beneficial ownership of the securities, except to the extent of their pecuniary interest, which is a standard legal disclaimer in such filings and does not represent a direct business risk to Amkor Technology.

Future Outlook

This Form 4 filing is a report of an insider transaction and does not contain any forward-looking statements or guidance regarding Amkor Technology's future outlook.

Industry Context

This insider transaction report is specific to Amkor Technology and its director's beneficial ownership structure. It does not provide broader industry trends or competitive analysis.

Related Party Transactions

• The transaction involves the distribution of shares between the 2023 Grantor Retained Annuity Trust and the Susan Y. Kim 2023 Family Distribution Trust, both associated with the reporting person's family.
• The reporting person's beneficial ownership also includes shares held by the John T. Kim Family Trust and John T. Kim G-S Trust.

Stakeholder Impact

• Shareholders: Minimal direct impact. The transaction is an internal trust transfer and not a market purchase or sale, so it is unlikely to significantly influence share price or company operations. It may be viewed as a minor positive for insider alignment.

Key Dates

Recommendation

This Form 4 details an internal transfer of shares between family trusts of a director and 10% owner, James J. Kim. The transaction is a non-cash distribution and does not reflect a market purchase or sale, nor does it provide new information regarding the company's operational performance or financial health. Therefore, it does not warrant a change in investment recommendation based solely on this filing.

Keywords

Amkor Technology, AMKR, Form 4, insider transaction, beneficial ownership, trust distribution, common stock, director, 10% owner