Form 4: Amkor Technology Insider Reports Significant Stock Transfer

Agnes C. Kim, a member of Amkor Technology's 10% owner group, reported the indirect acquisition of 725,000 common shares through a trust distribution.

Summary

• Agnes C. Kim, identified as a member of the 10% owner group for Amkor Technology, Inc. (AMKR), filed a Form 4 statement.
• The filing details an indirect acquisition of 725,000 shares of Amkor Technology common stock on December 26, 2025.
• This transaction was a distribution from the 2023 Grantor Retained Annuity Trust of Susan Y. Kim to the Susan Y. Kim 2023 Family Distribution Trust.
• James J. Kim, the spouse of the reporting person, serves as a co-trustee of the Susan Y. Kim 2023 Family Distribution Trust.
• Following this transaction, Agnes C. Kim indirectly beneficially owns 10,737,355 shares, primarily through her spouse.
• The reporting person disclaims beneficial ownership of these securities, except to the extent of her pecuniary interest therein.

Sentiment

Score: 6

Explanation: The filing reports a significant indirect acquisition of shares by a member of a 10% owner group through a trust distribution. While not a direct purchase, it indicates a continued significant stake by a major shareholder, which can be viewed positively for long-term stability. There are no negative implications for the company's operations or financial health within this filing.

Positives

• The transaction involves a significant block of 725,000 shares, indicating continued substantial indirect ownership by a major shareholder group.
• The shares were acquired at a price of $0, signifying a non-sale transaction (e.g., gift or trust distribution) rather than an open market purchase or sale that could impact market dynamics.

Future Outlook

The filing is a report of a past insider transaction and does not contain forward-looking statements or guidance regarding Amkor Technology's future operational or financial performance.

Industry Context

This Form 4 filing reports a routine insider transaction, specifically a change in indirect beneficial ownership for a member of a significant shareholder group of Amkor Technology, Inc. As a leading provider of outsourced semiconductor packaging and test services, such filings are standard disclosures and do not inherently provide insights into broader industry trends or competitive positioning.

Related Party Transactions

• The transaction involves a distribution of shares from the 2023 Grantor Retained Annuity Trust of Susan Y. Kim to the Susan Y. Kim 2023 Family Distribution Trust, where the reporting person's spouse, James J. Kim, is a co-trustee. This constitutes a related party transaction within the family's trust structure.

Stakeholder Impact

• Shareholders: The transaction indicates a continued significant, albeit indirect, holding by a major shareholder group, which may be interpreted as a sign of long-term commitment. There is no direct impact on share price from this non-market transaction.
• Employees, Customers, Suppliers, Creditors: No direct impact on these stakeholders is indicated by this insider transaction report, as it pertains solely to beneficial ownership changes within a trust structure.

Key Dates

Recommendation

This Form 4 reports an internal trust distribution of shares among a significant shareholder group, not an open market purchase or sale. It reflects a change in indirect beneficial ownership for Agnes C. Kim but does not provide new information about Amkor Technology's operational performance, financial health, or strategic direction that would warrant a change in investment recommendation. The substantial indirect holding by the 10% owner group remains consistent, suggesting a 'hold' position based solely on this filing.

Keywords

Amkor Technology, AMKR, SEC Form 4, Insider Transaction, Beneficial Ownership, Trust Distribution, Stock Transfer, Agnes C. Kim, James J. Kim, Corporate Governance