Form 4: Amkor Director Kim Shifts Share Ownership

John T. Kim, a Director and 10% owner of Amkor Technology, Inc., reported a change in the form of his beneficial ownership of common stock from indirect to direct through GRAT distributions.

Summary

• John T. Kim, a Director and 10% owner of Amkor Technology, Inc. (AMKR), reported changes in his beneficial ownership of common stock.
• On November 4, 2025, Kim acquired 806,000 shares of common stock directly from the John T. Kim 2024 GRAT #1.
• Concurrently, 806,000 shares were disposed of indirectly from the same GRAT.
• On the same date, Kim acquired an additional 40,750 shares directly from the John T. Kim 2024 GRAT #2.
• Correspondingly, 40,750 shares were disposed of indirectly from the John T. Kim 2024 GRAT #2.
• These transactions represent a change in the form of ownership from indirect (via GRATs) to direct, with no change in overall economic interest.
• Kim's direct beneficial ownership increased by a total of 846,750 shares (806,000 + 40,750).
• His indirect beneficial ownership through his own GRATs decreased by the same amount.
• The reported price for these transactions was $0, indicating a non-market transaction (e.g., a gift or distribution).
• Following these transactions, Kim's direct beneficial ownership is 5,594,489 shares, and indirect ownership through his own GRATs is 1,253,250 shares.
• Kim also holds significant indirect beneficial ownership through various other entities, including 915 Investments, LP (39,594,980 shares), Kim Capital Partners KCP, LLC (16,710,668 shares), Sujochil, LP (19,484,809 shares), other trusts (9,121,944 shares), and Sujoda Investments, LP (3,789,479 shares).

Sentiment

Score: 5

Explanation: Neutral. The filing reports a change in the form of ownership for an insider, not a market transaction or a change in overall economic interest. It's a routine disclosure for estate planning purposes.

Positives

• The transactions represent a change in the form of ownership from indirect to direct, not a sale of shares, indicating no reduction in the insider's overall economic interest in the company.
• The reporting person voluntarily reported these changes, demonstrating transparency.

Management Comments

• The distribution was a mere change in the form of ownership from indirect to direct and thus being voluntarily reported by the Reporting Person on this Form 4.
• 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.
• The Reporting Person states that the filing of this Form 4 shall not be deemed an admission that the Reporting Person is the beneficial owner of the reported securities owned by the other members of the group, for the purpose of Section 16, or for any other purpose.

Industry Context

This filing is a standard insider transaction report and does not provide information relevant to broader industry trends or competitive landscape for the semiconductor packaging and test services sector.

Stakeholder Impact

• Shareholders: No direct impact on the company's operations or financial performance. The overall beneficial ownership of a significant insider remains consistent.

Key Dates

Recommendation

This Form 4 filing details a routine change in the form of beneficial ownership for a director and 10% owner, John T. Kim, moving shares from grantor retained annuity trusts (GRATs) to direct ownership. This is an an estate planning maneuver and does not represent a market sale or purchase, nor does it alter the insider's overall economic interest in Amkor Technology. As such, it provides no new fundamental information to warrant a change in investment thesis. The stock should be held based on existing fundamental analysis, as this filing is neutral.

Keywords

Amkor Technology, AMKR, John T. Kim, Form 4, Beneficial Ownership, Insider Transaction, GRAT, Equity Ownership, Director, 10% Owner