Quick Takeaways
- James J. Kim filed SCHEDULE 13D/A for Amkor Technology, Inc. Common Stock, par value $0.001 per share (AMKR).
- Disclosed ownership: 30%.
- Date of event: 12 Feb 2026.
James J. Kim - 12 Feb 2026 SCHEDULE 13D/A Report for Amkor Technology, Inc. Common Stock, par value $0.001 per share (AMKR)
- Filing Manager
- James J. Kim
- Reporting Manager
- John T. Kim
- Symbol
- AMKR
- Shares outstanding
- 247,013,452 shares
- Disclosed Ownership
- 75,339,103 shares
- Ownership
- 30%
- Form type
- SCHEDULE 13D/A
- Filing time
- 17 Feb 2026, 16:15:02 UTC
- Date of event
- 12 Feb 2026
- Previous filing
- 16 May 2025
- SEC
- View on sec.gov
Quoteable Key Fact
"James J. Kim disclosed 30% ownership in Amkor Technology, Inc. Common Stock, par value $0.001 per share (AMKR) on 12 Feb 2026."
What Changed
- Previous schedule filing date: 16 May 2025.
- Current filing was accepted on 17 Feb 2026, 16:15.
Why This Matters
- This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
- You can verify ownership claims directly against the original SEC filing.
Official SEC Source
Backed by Schedule 13D/13G
Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.
See Original FilingReporting Managers (44)
| Name | Ownership | Shares Owned | sole voting power | shared voting power | Signature | Title | CIK |
|---|---|---|---|---|---|---|---|
| James J. Kim | 0.2% | 511,645 | 511,645 | 0 | /s/ Brian D. Short, Attorney-in-Fact | Brian D. Short, Attorney-in-fact | 0001158839 |
| James J. Kim, as Trustee | 4.3% | 10,511,032 | 0 | 10,511,032 | /s/ Brian D. Short, Attorney-in-Fact | Brian D. Short, Attorney-in-Fact | |
| Agnes C. Kim | 0% | 0 | 0 | 0 | /s/ Brian D. Short, Attorney-in-Fact | Brian D. Short, Attorney-in-Fact | |
| John T. Kim | 30% | 75,339,103 | 38,978,948 | 36,360,155 | /s/ Brian D. Short, Attorney-in-Fact | Brian D. Short, Attorney-in-Fact | |
| John T. Kim, as Trustee | 11% | 27,711,015 | 9,345,483 | 8,264,500 | /s/ Brian D. Short, Attorney-in-Fact | Brian D. Short, Attorney-in-Fact | |
| David D. Kim | 1.5% | 3,798,225 | 8,746 | 0 | /s/ Kenneth R. Hillier, Attorney-in-Fact | Kenneth R. Hillier, Attorney-in-Fact | |
| David D. Kim, as Trustee | 1.1% | 2,698,513 | 1,363,400 | 1,335,113 | /s/ Kenneth R. Hillier, Attorney-in-Fact | Kenneth R. Hillier, Attorney-in-Fact | |
| Susan Y. Kim | 19% | 46,195,450 | 9,999,973 | 36,195,477 | /s/ Brian D. Short, Attorney-in-Fact | Brian D. Short, Attorney-in-Fact | |
| Susan Y. Kim, as Trustee | 7% | 17,389,326 | 9,351,594 | 7,539,500 | /s/ Brian D. Short, Attorney-in-Fact | Brian D. Short, Attorney-in-Fact | |
| Liam E. Blaney | 0.1% | 164,678 | 0 | 164,678 | /s/ Brian D. Short, Attorney-in-Fact | Brian D. Short, Attorney-in-Fact | |
| John T. Kim Trust of December 31, 1987 | 3.1% | 7,594,001 | 7,594,001 | 0 | /s/ Brian D. Short, Attorney-in-Fact | John T. Kim, as Trustee | |
| Irrevocable Deed of Trust of James J. Kim for Jacqueline Mary Panichello dated 10/3/94 | 0.4% | 961,113 | 0 | 961,113 | /s/ Brian D. Short, Attorney-in-Fact | Susan Y. Kim, as Trustee | |
| Irrevocable Deed of Trust of James J. Kim for Alexandra Kim Panichello dated 12/24/92 | 0.4% | 961,113 | 0 | 961,113 | /s/ Brian D. Short, Attorney-in-Fact | Susan Y. Kim, as Trustee | |
| Irrevocable Deed of Trust of James J. Kim for Dylan James Panichello dated 10/15/01 | 0.4% | 961,113 | 0 | 961,113 | /s/ Brian D. Short, Attorney-in-Fact | Susan Y. Kim, as Trustee | |
| Irrevocable Deed of Trust of James J. Kim for Allyson Lee Kim dated 10/15/01 | 0.4% | 961,113 | 0 | 961,113 | /s/ Brian D. Short, Attorney-in-Fact | John T. Kim, as Trustee | |
| Irrevocable Deed of Trust of James J. Kim FBO Jason Lee Kim dated 11/17/03 | 0.4% | 961,113 | 0 | 961,113 | /s/ Brian D. Short, Attorney-in-Fact | John T. Kim, as Trustee | |
| Irrevocable Deed of Trust of James J. Kim f/b/o Children of David D. Kim dated 11/11/05 | 0.5% | 1,335,113 | 0 | 1,335,113 | /s/ Kenneth R. Hillier, Attorney in Fact | David D. Kim, as Trustee | |
| James J. Kim 2008 Trust FBO Alexandra Kim Panichello and Descendants dated 2/5/08 | 0.2% | 546,787 | 0 | 546,787 | /s/ Brian D. Short, Attorney-in-Fact | Susan Y. Kim, as Trustee | |
| James J. Kim 2008 Trust FBO Jacqueline Mary Panichello and Descendants dated 2/5/08 | 0.2% | 546,787 | 0 | 546,787 | /s/ Brian D. Short, Attorney-in-Fact | Susan Y. Kim, as Trustee | |
| James J. Kim 2008 Trust FBO Dylan James Panichello and Descendants dated 2/5/08 | 0.2% | 546,787 | 0 | 546,787 | /s/ Brian D. Short, Attorney-in-Fact | Susan Y. Kim, as Trustee | |
| James J. Kim 2008 Trust FBO Descendants of John T. Kim dated 2/5/08 | 0.4% | 1,093,574 | 0 | 1,093,574 | /s/ Brian D. Short, Attorney-in-Fact | John T. Kim, as Trustee | |
| James J. Kim 2008 Trust FBO Descendants of David D. Kim dated 2/5/08 | 0.6% | 1,363,400 | 1,363,400 | 0 | /s/ Kenneth R. Hillier, Attorney in Fact | David D. Kim, as Trustee | |
| The James and Agnes Kim Foundation, Inc. | 0.5% | 1,150,000 | 1,150,000 | 0 | /s/ Brian D. Short, Attorney-in-Fact | Susan Y. Kim, as Secretary | |
| 915 Investments, LP | 12% | 29,594,980 | 29,594,980 | 0 | /s/ Brian D. Short, Attorney-in-Fact | John T. Kim, as General Partner | |
| John T. Kim 2007 Children's Trust U/A dated 12/28/07 | 0.1% | 315,000 | 315,000 | 0 | /s/ Brian D. Short, Attorney-in-Fact | Susan Y. Kim, as Trustee | |
| Sujoda Investments, LP | 1.5% | 3,789,479 | 3,789,479 | 0 | /s/ Brian D. Short, Attorney-in-Fact | Susan Y. Kim, as Manager of Sujoda Management, LLC, its General Partner | |
| John T. Kim 2012 Generation-Skipping Trust U/A Dated 12/11/12 | 0.8% | 1,957,350 | 1,957,350 | 0 | /s/ Brian D. Short, Attorney-in-Fact | James J. Kim, as Trustee | |
| Family Trust under the John T. Kim 2018 Irrevocable Trust Agreement dated 2/6/18 | 0.2% | 498,232 | 498,232 | 0 | /s/ Brian D. Short, Attorney-in-Fact | Susan Y. Kim, as Trustee | |
| Family Trust under the John T. Kim 2012 Irrevocable Trust Agreement dated 12/11/12 | 3.2% | 7,828,682 | 7,828,682 | 0 | /s/ Brian D. Short, Attorney-in-Fact | James J. Kim, as Trustee | |
| Sujochil, LP | 7.9% | 19,484,809 | 0 | 19,484,809 | /s/ Brian D. Short, Attorney-in-Fact | John T. Kim, as General Partner | |
| Sujoda Management, LLC | 1.5% | 3,789,479 | 3,789,479 | 0 | /s/ Brian D. Short, Attorney-in-Fact | Susan Y. Kim, Manager | |
| Susins, LLC | 0.1% | 164,678 | 0 | 164,678 | /s/ Brian D. Short, Attorney-in-Fact | John T. Kim, Manager | |
| 2023 Grantor Retained Annuity Trust of James J. Kim dtd. 4/26/2023 | 0% | 0 | 0 | 0 | /s/ Brian D. Short, Attorney-in-Fact | Susan Y. Kim, as Trustee | |
| 2023 Grantor Retained Annuity Trust of Agnes C. Kim dtd. 4/26/2023 | 0% | 0 | 0 | 0 | /s/ Brian D. Short, Attorney-in-Fact | Susan Y. Kim, as Trustee | |
| 2023 Grantor Retained Annuity Trust of Susan Y. Kim Dated 9/15/2023 | 0% | 0 | 0 | 0 | /s/ Brian D. Short, Attorney-in-Fact | Susan Y. Kim, as Trustee | |
| Kim Capital Partners - KCP, LLC | 6.8% | 16,710,668 | 0 | 16,710,668 | /s/ Brian D. Short, Attorney-in-Fact | Susan Y. Kim, Manager | |
| 2024 Grantor Retained Annuity Trust of Susan Y. Kim dtd. 8/5/2024 | 0.5% | 1,124,000 | 1,124,000 | 0 | /s/ Brian D. Short, Attorney-in-Fact | Susan Y. Kim, as Trustee | |
| 2024 Grantor Retained Annuity Trust of James J. Kim dtd. 8/5/2024 | 0.5% | 1,235,000 | 1,235,000 | 0 | /s/ Brian D. Short, Attorney-in-Fact | Susan Y. Kim, as Trustee | |
| 2024 Grantor Retained Annuity Trust of Agnes C. Kim dtd. 8/5/2024 | 0.4% | 895,000 | 895,000 | 0 | /s/ Brian D. Short, Attorney-in-Fact | Susan Y. Kim, as Trustee | |
| John T. Kim 2024 GRAT #1 dtd. 08/09/2024 | 0.5% | 1,194,000 | 1,194,000 | 0 | /s/ Brian D. Short, Attorney-in-Fact | John T. Kim, as Trustee | |
| John T. Kim 2024 GRAT #2 dtd. 08/09/2024 | 0% | 59,250 | 59,250 | 0 | /s/ Brian D. Short, Attorney-in-Fact | John T. Kim, as Trustee | |
| Susan Y. Kim 2023 Family Distribution Trust | 0.3% | 725,000 | 0 | 725,000 | /s/ Brian D. Short, Attorney-in-Fact | John T. Kim, as Trustee | |
| 2025 Grantor Retained Annuity Trust No. 1 of Agnes C. Kim | 1% | 2,538,000 | 2,538,000 | 0 | /s/ Brian D. Short, Attorney-in-Fact | Susan Y. Kim, as Trustee | |
| 2025 Grantor Retained Annuity Trust No.1 of James J. Kim | 1.3% | 3,244,594 | 3,244,594 | 0 | /s/ Brian D. Short, Attorney-in-Fact | Susan Y. Kim, as Trustee |