List of insiders holdings for AMKOR TECHNOLOGY INC.:
- Shares directly owned by the insider.
- Shares indirectly owned by the insider.
- Total shares owned by the insider (sum of shares directly and indirectly owned).
- Total market value if available.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| # | Insider Holder Name | Report Date Time | Shares Owned Directly Indirectly | Total Shares Owned | Filing |
| 1 | KIM JOHN T Member of 10% owner group (8) 10% Owner | 2025-11-06 18:29:45 | 5,594,489 89,955,130 | 95,549,619 | Form 4 |
| 2 | KIM JAMES J KIM SUSAN Y KIM DAVID D KIM JOHN T Trust U/D of James J Kim dated 12-24-92 f/b/o Alexandra Kim Panichello Trust U/D of James J Kim dated 10-3-94 f/b/o Jacqueline Mary Panichello Trust U/D of James J Kim dated 11-17-03 f/b/o Jason Lee Kim Trust U/D of James J Kim dated 10/15/01 f/b/o Allyson Lee Kim Trust U/D of James J Kim dated 10-15-01 f/b/o Dylan James Panichello Trust U/D of James J Kim dated 11-11-2005 f/b/o Children of David D Kim See Exhibit Nos. 99.1 and 99.2 10% Owner | 2025-05-16 16:05:21 | 83,332,761 0 | 83,332,761 | Form 13D |
| 3 | KIM SUSAN Y Member of 10% owner group (6) Director 10% Owner | 2025-12-08 17:52:27 | 6,090,494 49,347,566 | 55,438,060 | Form 4 |
| 4 | 915 Investments LP Member of 10% owner group (2) | 2023-09-08 18:45:11 | 39,594,980 0 | 39,594,980 | Form 4 |
| 5 | Sujochil LP Exhibit 99.1 10% Owner | 2017-01-17 14:54:47 | 19,484,809 0 | 19,484,809 | Form 3 |
| 6 | Kim Capital Partners - KCP LLC Member of 10% owner group (3) | 2023-11-16 18:00:19 | 16,710,668 0 | 16,710,668 | Form 3 |
| 7 | Family Trust Under the John T. Kim 2012 Irrevocable Trust Agreement Dated 12/11/12 Exhibit 99.1 | 2019-02-14 18:51:15 | 15,657,364 0 | 15,657,364 | Form 5 |
| 8 | KIM JAMES J Member of 10% owner group (4) 10% Owner | 2025-11-24 20:58:23 | 2,341,239 12,748,710 | 15,089,949 | Form 4 |
| 9 | KIM AGNES C Member of 10% owner group (3) | 2025-11-24 20:58:09 | 0 12,995,281 | 12,995,281 | Form 4 |
| 10 | James J. Kim GRAT Remainder Trust UA Dated November 14 2008 Ex. 99.1 | 2011-01-05 10:23:09 | 6,189,831 6,189,831 | 12,379,662 | Form 4 |
| 11 | SUSAN Y KIM TRUST OF 12/31/87 Exhibit 99.1 | 2013-02-12 14:49:57 | 11,284,809 0 | 11,284,809 | Form 5 |
| 12 | John T. Kim 2012 Irrevocable Trust Exhibit 99.1 | 2019-02-14 18:06:51 | 9,967,064 0 | 9,967,064 | Form 5 |
| 13 | JOHN T KIM TRUST OF 12/31/87 Exhibit 99.1 | 2018-02-14 12:45:15 | 8,933,223 0 | 8,933,223 | Form 5 |
| 14 | KIM DAVID D Member of 10% owner group (5) | 2025-08-05 19:27:48 | 8,746 6,487,992 | 6,496,738 | Form 4 |
| 15 | Sujoda Management LLC Member of 10% owner group (4) | 2025-08-05 19:20:48 | 0 3,789,479 | 3,789,479 | Form 4 |
| 16 | SUJODA Investments LP Member of 10% owner group (2) | 2025-08-05 19:21:58 | 3,789,479 0 | 3,789,479 | Form 4 |
| 17 | James J. Kim 2013 Qualified Annuity Trust U/A Dated May 17 2013 Exhibit 99.1 | 2019-02-14 18:25:03 | 3,220,433 0 | 3,220,433 | Form 5 |
| 18 | Susan Y. Kim 2012 Irrevocable Trust Exhibit 99.1 | 2019-02-14 18:05:44 | 2,779,777 0 | 2,779,777 | Form 5 |
| 19 | Irrevocable Deed of Trust of Susan Y. Kim dated 4/16/98 For the Benefit of Dylan James Panichello See Exhibit 99.1 | 2021-09-21 19:35:04 | 2,733,334 0 | 2,733,334 | Form 4 |
| 20 | Trust of Kim Susan Y dated 4/16/98 for the benefit of Alexandra Panichello See Exhibit 99.1 | 2021-11-10 13:17:04 | 2,733,333 0 | 2,733,333 | Form 4 |
| 21 | Irrevocable Deed of Trust of Susan Y. Kim dated 4/16/98 For the Benefit of Jacqueline Mary Panichello See Exhibit 99.1 | 2021-09-21 19:48:34 | 2,733,333 0 | 2,733,333 | Form 4 |
| 22 | John T. Kim Generation-Skipping Trust Exhibit 99.1 | 2013-02-12 15:44:48 | 1,957,350 0 | 1,957,350 | Form 5 |
| 23 | James J. Kim 2008 Trust FBO Descendants of David D. Kim See Exhibit No. EX-99.1 | 2008-02-13 21:58:39 | 1,363,400 0 | 1,363,400 | Form 3 |
| 24 | BORUCH JOHN N President & COO | 2005-12-27 20:42:56 | 1,332,735 0 | 1,332,735 | Form 4 |
| 25 | 2024 Grantor Retained Annuity Trust of James J. Kim dtd. 8/5/2024 Member of 10% owner group (2) | 2025-11-24 20:57:50 | 1,235,000 0 | 1,235,000 | Form 4 |
| 26 | John T. Kim 2024 GRAT #1 dtd. 08/09/2024 Member of 10% owner group | 2025-11-06 18:27:40 | 1,194,000 0 | 1,194,000 | Form 4 |
| 27 | James & Agnes Kim Foundation Inc. See Exhibit No. EX-99.1 | 2009-06-10 19:07:41 | 1,150,000 0 | 1,150,000 | Form 4 |
| 28 | 2024 Grantor Retained Annuity Trust of Susan Y. Kim dtd. 8/5/2024 Member of 10% owner group (2) | 2025-11-24 20:58:16 | 1,124,000 0 | 1,124,000 | Form 4 |
| 29 | James J. Kim 2008 Trust FBO Descendants of John T. Kim See Exhibit 99.1 | 2020-12-21 15:43:15 | 1,093,574 0 | 1,093,574 | Form 4 |
| 30 | 2024 Grantor Retained Annuity Trust of Agnes C. Kim dtd. 8/5/2024 Member of 10% owner group (2) | 2025-11-24 20:57:57 | 895,000 0 | 895,000 | Form 4 |
| 31 | 2023 Grantor Retained Annuity Trust of Susan Y. Kim Dated 9/15/2023 Member of 10% owner group (2) | 2025-12-08 17:51:11 | 725,000 0 | 725,000 | Form 4 |
| 32 | James J. Kim 2008 Trust FBO Alexandra Kim Panichello & Descendants See Exhibit 99.1 | 2020-12-21 15:32:00 | 546,787 0 | 546,787 | Form 4 |
| 33 | James J. Kim 2008 Trust FBO Dylan James Panichello & Descendants See Exhibit 99.1 | 2020-12-21 15:43:33 | 546,787 0 | 546,787 | Form 4 |
| 34 | James J. Kim 2008 Trust FBO Jacqueline Mary Panichello & Descendants See Exhibit 99.1 | 2020-12-21 15:41:04 | 546,787 0 | 546,787 | Form 4 |
| 35 | Kim John T. Trust dated 10/27/04 for the benefit of his children KIM SUSAN Y KIM JOHN T See Exhibit No. EX-99.1 10% Owner | 2004-11-08 20:18:33 | 0 500,000 | 500,000 | Form 3 |
| 36 | Family Trust Under the John T. Kim 2018 Irrevocable Trust Agreement Dated 2/6/18 Member of 10% owner group (2) | 2023-08-07 18:00:06 | 498,232 0 | 498,232 | Form 3 |
| 37 | Rutten Guillaume Marie Jean President and CEO | 2025-11-19 16:38:54 | 346,699 0 | 346,699 | Form 4 |
| 38 | John T. Kim 2007 Children's Trust UA Dated December 28 2007 See Exhibit 99.1 | 2011-02-11 12:13:47 | 315,000 0 | 315,000 | Form 5 |
| 39 | Kelley Stephen Douglas President and CEO | 2020-05-28 10:33:38 | 136,200 150,000 | 286,200 | Form 4 |
| 40 | Nakaya Yoshifumi Executive Vice President | 2016-02-17 16:43:05 | 200,000 0 | 200,000 | Form 4 |
| 41 | Susan Y. Kim 2012 Generation-Skipping Trust U/A Dated December 11 2012 Member of 10% owner group (2) | 2022-01-24 20:45:37 | 0 164,678 | 164,678 | Form 4 |
| 42 | Susins LLC Member of 10% owner group (2) | 2022-01-21 11:47:09 | 164,678 0 | 164,678 | Form 4 |
| 43 | JOYCE KENNETH T President & CEO | 2012-11-07 15:53:17 | 162,190 0 | 162,190 | Form 4 |
| 44 | ROGERS MARK N EVP & General Counsel | 2025-11-19 16:37:17 | 153,862 0 | 153,862 | Form 4 |
| 45 | Park Yong Chul Executive Vice President | 2019-02-20 12:49:38 | 150,130 0 | 150,130 | Form 4 |
| 46 | Park Young Kuk Executive Vice President | 2019-05-17 20:00:26 | 150,000 0 | 150,000 | Form 4 |
| 47 | Faust Megan CFO | 2025-10-02 16:36:43 | 118,147 0 | 118,147 | Form 4 |
| 48 | Lamble Mike Executive Vice President | 2012-11-02 17:38:06 | 65,963 14,189 | 80,152 | Form 4 |
| 49 | ZUG JAMES W Director | 2017-05-04 17:37:58 | 69,243 0 | 69,243 | Form 4 |
| 50 | Haghighi Farshad Executive Vice President | 2025-11-18 16:35:40 | 60,588 0 | 60,588 | Form 4 |
| 51 | Engel Kevin Executive Vice President | 2025-11-18 16:33:58 | 60,134 0 | 60,134 | Form 4 |
| 52 | John T. Kim 2024 GRAT #2 dtd. 08/09/2024 Member of 10% owner group | 2025-11-06 18:29:26 | 59,250 0 | 59,250 | Form 4 |
| 53 | OSBORNE JOHN Director | 2017-05-04 17:54:28 | 57,816 0 | 57,816 | Form 4 |
| 54 | Solomon Joanne Executive VP & CFO | 2016-08-02 14:12:49 | 57,040 0 | 57,040 | Form 4 |
| 55 | Fusaro James MacMillan Executive Vice President | 2011-05-05 16:40:51 | 47,742 0 | 47,742 | Form 4 |
| 56 | FREYMAN BRUCE J President & COO | 2004-08-04 16:30:26 | 45,338 0 | 45,338 | Form 4 |
| 57 | Kim Kyu-Hyun President, Amkor Tech. Korea | 2008-02-20 18:06:51 | 40,000 0 | 40,000 | Form 4 |
| 58 | KHAYKIN OLEG Exec.VP & COO. | 2006-02-13 20:44:08 | 35,000 0 | 35,000 | Form 4 |
| 59 | Stone John Charles Executive Vice President | 2022-02-15 17:22:00 | 31,038 2,000 | 33,038 | Form 4 |
| 60 | ALEXANDER DOUGLAS A Director | 2025-09-25 16:44:36 | 27,922 0 | 27,922 | Form 4 |
| 61 | KIM JOO HO Executive Vice President | 2014-08-04 16:50:09 | 21,513 1000 | 22,513 | Form 4 |
| 62 | HUGO MARTINEZ ALBERT J Director | 2005-08-26 17:24:44 | 20,000 0 | 20,000 | Form 4 |
| 63 | NEWBERRY STEPHEN G Director | 2010-05-05 16:53:40 | 20,000 0 | 20,000 | Form 4 |
| 64 | Carolin Roger Anthony Director | 2025-09-25 16:43:10 | 18,718 0 | 18,718 | Form 4 |
| 65 | Morse Robert Randolph Director | 2025-09-25 16:36:20 | 18,718 0 | 18,718 | Form 4 |
| 66 | McCourt MaryFrances Director | 2025-09-25 16:35:02 | 18,718 0 | 18,718 | Form 4 |
| 67 | Lee Choon Heung Executive Vice President | 2015-08-06 18:34:49 | 16,523 0 | 16,523 | Form 4 |
| 68 | Shin Sung Executive Vice President | 2023-06-05 17:56:59 | 15,418 0 | 15,418 | Form 4 |
| 69 | Larson Eric R Executive Vice President | 2010-02-05 19:46:02 | 14,000 0 | 14,000 | Form 4 |
| 70 | HINCKLEY GREGORY K Director | 2006-08-10 19:55:05 | 10,000 0 | 10,000 | Form 4 |
| 71 | PAPADAKIS CONSTANTINE Director | 2008-12-16 10:57:30 | 10,000 0 | 10,000 | Form 4 |
| 72 | KNORR DR JUERGEN Director | 2005-08-25 18:24:30 | 10,000 0 | 10,000 | Form 4 |
| 73 | NEFF JOHN B Director | 2004-08-30 16:18:31 | 10,000 0 | 10,000 | Form 4 |
| 74 | GEORGE THOMAS DALE Director | 2004-08-30 16:15:17 | 10,000 0 | 10,000 | Form 4 |
| 75 | Liao Daniel JL Director | 2025-09-25 16:31:26 | 9,855 0 | 9,855 | Form 4 |
| 76 | LIU JOHN D Director | 2025-09-25 16:33:26 | 9,855 0 | 9,855 | Form 4 |
| 77 | WATSON DAVID N Director | 2025-09-25 16:37:48 | 9,855 0 | 9,855 | Form 4 |
| 78 | Tily Gil C. Director | 2025-09-25 16:39:20 | 9,855 0 | 9,855 | Form 4 |
| 79 | CHURCHILL WINSTON J Director | 2025-09-25 16:41:18 | 9,855 0 | 9,855 | Form 4 |
| 80 | Family Trust under the Susan Y. Kim 2018-1 Irrevocable Trust Agreement dtd. 8/29/18 Member of 10% owner group (2) | 2023-11-16 18:00:34 | 0 0 | 0 | Form 4 |
| 81 | Susan Y. Kim 2015 Irrevocable Trust U/A Dated March 16 2015 Exhibit 99.1 | 2021-02-16 08:42:44 | 0 0 | 0 | Form 5 |
| 82 | James J. Kim 2014 Qualified Annuity Trust Exhibit 99.1 | 2021-02-16 08:46:03 | 0 0 | 0 | Form 5 |
| 83 | DAVID D KIM TRUST OF 12/31/87 KIM DAVID D See Exhibit 99.1 | 2017-01-17 14:58:04 | 0 0 | 0 | Form 4 |
| 84 | Qualified Annuity Trust under the James J. Kim 2018-1 Qualified Annuity Trust Agreement dtd 8/30/18 Member of 10% owner group (4) | 2022-01-20 20:54:20 | 0 0 | 0 | Form 4 |
| 85 | Qualified Annuity Trust under the James J. Kim 2019-1 Qualified Annuity Trust Agreement dtd September10 2019 Member of 10% owner group (4) | 2022-12-19 20:23:26 | 0 0 | 0 | Form 4 |
| 86 | Qualified Annuity Trust under the James J. Kim 2020-1 Annuity Trust Agreement dated 04/01/2020 Member of 10% owner group (3) | 2023-07-27 18:00:24 | 0 0 | 0 | Form 4 |
| 87 | Qualified Annuity Trust under the John T. Kim 2018 Irrevocable Trust Agreement Dated 2/6/18 Member of 10% owner group (2) | 2023-07-31 18:00:17 | 0 0 | 0 | Form 4 |
| 88 | Qualified Annuity Trust under the Susan Y. Kim 2020-1 Irrevocable Trust Agreement dated 04/01/2020 Member of 10% owner group (2) | 2023-09-18 18:00:17 | 0 0 | 0 | Form 4 |
| 89 | Qualified Annuity Trust under the Susan Y. Kim 2018-1 Irrevocable Trust Agreement dtd August 29 2018 Member of 10% owner group (2) | 2023-10-23 18:00:16 | 0 0 | 0 | Form 4 |
| 90 | Blaney Liam E Member of 10% owner group (4) | 2023-11-16 18:00:09 | 0 0 | 0 | Form 4 |
| 91 | Family Trust Under the Susan Y. Kim 2020-1 Irrevocable Trust Agreement Dated 04/01/2020 Member of 10% owner group (2) | 2023-11-16 18:00:12 | 0 0 | 0 | Form 4 |
| 92 | Alexandra Investments LLC Member of 10% owner group (2) | 2023-11-16 18:00:13 | 0 0 | 0 | Form 4 |
| 93 | Park Dong Hyun Director | 2011-11-22 17:38:46 | 0 0 | 0 | Form 4/A |
| 94 | Dylan Investments LLC Member of 10% owner group (2) | 2023-11-16 18:00:38 | 0 0 | 0 | Form 4 |
| 95 | Jacqueline Investments LLC Member of 10% owner group (2) | 2023-11-16 18:00:39 | 0 0 | 0 | Form 4 |
| 96 | Family Trust Under the Susan Y. Kim 2012 Irrevocable Trust Agreement Dated 7/26/12 Member of 10% owner group (2) | 2023-11-16 18:00:45 | 0 0 | 0 | Form 4 |
| 97 | Agnes C. Kim 2020-1 Qualified Annuity Trust Under Agreement Dated 12/16/20 Member of 10% owner group (4) | 2023-12-27 16:30:13 | 0 0 | 0 | Form 4 |
| 98 | James J. Kim 2021 Qualified Annuity Trust U/A Dated 12/15/2021 Member of 10% owner group (3) | 2025-01-22 17:01:24 | 0 0 | 0 | Form 4 |
| 99 | 2023 Grantor Retained Annuity Trust of James J. Kim Dated 4/26/2023 Member of 10% owner group (3) | 2025-08-05 19:18:02 | 0 0 | 0 | Form 4 |
| 100 | 2023 Grantor Retained Annuity Trust of Agnes C. Kim Dated 4/26/2023 Member of 10% owner group (3) | 2025-08-05 19:29:24 | 0 0 | 0 | Form 4 |