KIM SUSAN Y 4
4 · AMKOR TECHNOLOGY, INC. · Filed Apr 2, 2026
Research Summary
AI-generated summary of this filing
Amkor (AMKR) 10% Owner Susan Kim Receives RSU Dividend Units
What Happened
Susan Y. Kim, a reported 10% owner of Amkor Technology, was credited 18.156 dividend-equivalent units (DEUs) on March 31, 2026. These DEUs were recorded as the acquisition of derivative securities (award/grant) at $0.00, so no cash changed hands and the reported transaction value is $0. Each DEU represents an additional restricted stock unit (RSU) tied to the original time-vested RSUs granted May 15, 2025.
Key Details
- Transaction date: 2026-03-31; Form 4 filed 2026-04-02 (timely filing).
- Transaction type/code: Award/Grant of derivative securities (A); DEUs added to existing RSUs.
- Amount: 18.156 DEUs / additional RSUs; reported price $0.00 (no proceeds).
- Reported beneficial interest: per footnotes the Reporting Person is treated as having a pecuniary interest in approximately 36,024,492 shares held across trusts and entities (see footnotes for breakdown).
- Notable footnotes: F5 explains DEUs were accrued upon the March 31 dividend and each DEU equals an additional RSU subject to the same terms; F1–F4 and F3/F4 clarify trust/partnership holdings, disclaimers, and that the filer resigned as manager of KCP, LLC on April 1, 2026.
- No sale or open-market purchase occurred; this was an award/adjustment of equity units.
Context
DEUs are dividend equivalents that convert into additional RSUs and are typically a mechanical accrual tied to dividend payments on held RSUs—not an independent market buy or sell. As a 10% owner with large indirect holdings through trusts and partnerships, this transaction reflects an administrative equity accrual rather than a discretionary purchase or sale by an executive; it should be interpreted as a non-cash award, not a direct market signal.
Insider Transaction Report
- Award
Restricted Stock Units
[F5]2026-03-31+18.156→ 9,893.057 total→ Common Stock (18.156 underlying)
- 0(indirect: By LLC)
Common Stock
[F1] - 6,090,494
Common Stock
- 3,244,594(indirect: By Trust)
Common Stock
[F2][F3] - 2,538,000(indirect: By Trust)
Common Stock
[F2][F3] - 1,235,000(indirect: By James J. Kim 2024 GRAT dtd. 8/5/24)
Common Stock
[F2][F3] - 895,000(indirect: By Agnes C. Kim 2024 GRAT dtd. 8/5/24)
Common Stock
[F2][F3] - 1,124,000(indirect: By own GRATs)
Common Stock
[F2][F3] - 3,713,610(indirect: By Trust)
Common Stock
[F2][F3] - 3,789,479(indirect: By Sujoda Investments, LP)
Common Stock
[F2][F3][F4] - 19,484,809(indirect: By Sujochil, LP)
Common Stock
[F2][F3]
Footnotes (5)
- [F1]The Reporting Person resigned as a manager of Kim Capital Partners - KCP, LLC on April 1, 2026.
- [F2]The Reporting Person is (i) a trustee of trusts for the benefit of her immediate family members (other than grantor retained annuity trusts ("GRATs")) which own 3,713,610 shares of the Common Stock of Amkor Technology, Inc. (the "Issuer"); (ii) a trustee of GRATs for the benefit of members of her immediate family which own 7,912,594 shares of the Issuer's Common Stock; (iii) a trustee of GRATs of which the Reporting Person was the settlor and is the sole annuitant which own 1,124,000 shares of the Issuer's Common Stock; (iv) a general partner of a limited partnership (Sujochil, LP) which owns 19,484,809 shares of the Issuer's Common Stock; and (v) a member of Sujoda Management, LLC, which indirectly owns 3,789,479 shares of the Issuer's Common Stock. Pursuant to the Form 4 instructions, the Reporting Person is being treated as having a pecuniary interest in all of such shares.
- [F3]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.
- [F4]The sole general partner of Sujoda Investments, LP is Sujoda Management, LLC. The Reporting Person is one of three members of Sujoda Management, LLC. Sujoda Management, LLC is being treated as a limited partnership for purposes of Section 16, and pursuant to the Form 4 instructions, the Reporting Person has elected to treat all of the shares of the Issuer's Common Stock owned by Sujoda Investments, LP as beneficially owned by the Reporting Person.
- [F5]Represents dividend equivalent units ("DEUs") accrued upon the payment of a dividend on March 31, 2026 with respect to time-vested restricted stock units ("RSUs") of the Issuer granted to the Reporting Person on May 15, 2025. Each DEU represents an additional RSU subject to the same provisions as the RSU with respect to which the DEU was accrued.