Form 4: Amkor Director Susan Kim Reports RSU Dividend Accrual

Amkor Technology Director Susan Y. Kim reported the accrual of dividend equivalent units on restricted stock units and detailed her extensive beneficial ownership of common stock.

Summary

• Susan Y. Kim, a Director and 10% owner of Amkor Technology, Inc. (AMKR), filed a Form 4 detailing her beneficial ownership.
• She directly owns 4,456,494 shares of Amkor Common Stock.
• Indirect ownership totals 51,686,566 shares, held through various entities including Sujochil, LP (19,484,809 shares), Kim Capital Partners KCP, LLC (16,710,668 shares), trusts (excluding GRATs) (4,418,610 shares), Sujoda Investments, LP (3,789,479 shares), her own GRATs (3,483,000 shares), James J. Kim 2024 GRAT (2,200,000 shares), and Agnes C. Kim 2024 GRAT (1,600,000 shares).
• On September 23, 2025, she acquired 27.3648 dividend equivalent units (DEUs) related to time-vested restricted stock units (RSUs) granted on May 15, 2025.
• Each DEU represents an additional RSU, subject to the same provisions as the original RSU.
• Following this transaction, she beneficially owns 9,854.8917 derivative securities, specifically RSUs.
• The Reporting Person disclaims beneficial ownership of these securities, except to the extent of her pecuniary interest therein.

Sentiment

Score: 7

Explanation: The filing indicates a director's continued significant ownership and participation in company dividends, which is generally a positive signal of alignment with shareholder interests. However, it's a routine compliance filing and doesn't convey strong positive or negative operational news.

Positives

• The accrual of dividend equivalent units indicates ongoing RSU holdings and participation in company dividends, reflecting continued alignment with shareholder interests.
• Significant beneficial ownership by a director and 10% owner demonstrates a substantial vested interest in the company's performance.

Future Outlook

The filing does not contain forward-looking statements or guidance, as it is a report on changes in beneficial ownership.

Management Comments

• 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 Form 4 filing is a standard regulatory disclosure for insider transactions and does not provide broader industry context. It reflects an individual director's ownership changes within Amkor Technology, a semiconductor packaging and test services provider.

Stakeholder Impact

• Shareholders: The significant beneficial ownership by a director and 10% owner may be viewed positively, indicating alignment of interests with the company's long-term success.

Key Dates

Recommendation

This Form 4 filing is a routine disclosure of insider ownership and a minor accrual of dividend equivalent units. It does not provide new information that would fundamentally alter the investment thesis for Amkor Technology, Inc. The significant beneficial ownership by a director is a positive sign of alignment, but the transaction itself is not material enough to warrant a change in investment recommendation. Therefore, a 'hold' recommendation is appropriate, maintaining existing positions based on broader company fundamentals and market conditions.

Keywords

Amkor Technology, AMKR, Susan Y. Kim, Form 4, Insider Ownership, Beneficial Ownership, Restricted Stock Units, Dividend Equivalent Units, Director, 10% Owner