As of April 25, 2026, the three largest insider holders of AMKR are Agnes C Kim (Other, 72.07Mn shares), Agnes C Kim (Other, 72.07Mn shares), Agnes C Kim (Other, 72.07Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Agnes C Kim | - | 0 | 72,066,487 | 15 Feb, 2022 |
| Agnes C Kim | - | 0 | 72,066,487 | 15 Feb, 2022 |
| Agnes C Kim | - | 0 | 72,066,487 | 15 Feb, 2022 |
| Agnes C Kim | - | 0 | 66,248,609 | 03 May, 2023 |
| Agnes C Kim | - | 0 | 66,248,609 | 03 May, 2023 |
| Agnes C Kim | - | 0 | 66,248,609 | 03 May, 2023 |
| James J Kim | - | 0 | 39,594,980 | 06 Sep, 2023 |
| James J Kim | - | 0 | 39,594,980 | 06 Sep, 2023 |
| James J Kim | - | 0 | 39,594,980 | 06 Sep, 2023 |
| John T Kim | - | 0 | 29,594,980 | 17 Feb, 2026 |
| Investments, Lp 915 | - | 29,594,980 | 0 | 17 Feb, 2026 |
| John T Kim | - | 0 | 29,594,980 | 17 Feb, 2026 |
| John T Kim | - | 0 | 29,594,980 | 17 Feb, 2026 |
| Susan Y Kim | - | 0 | 21,963,134 | 31 Dec, 2021 |
| John T Kim | - | 0 | 21,963,134 | 31 Dec, 2021 |
| John T Kim | - | 0 | 21,963,134 | 31 Dec, 2021 |
| John T Kim | - | 0 | 21,963,134 | 31 Dec, 2021 |
| Susan Y Kim | - | 0 | 21,963,134 | 31 Dec, 2021 |
| Susan Y Kim | - | 0 | 21,963,134 | 31 Dec, 2021 |
| John T Kim | - | 0 | 16,710,668 | 16 Nov, 2023 |
| John T Kim | - | 0 | 16,710,668 | 16 Nov, 2023 |
| John T Kim | - | 0 | 16,710,668 | 16 Nov, 2023 |
| Agnes C Kim | - | 0 | 10,737,355 | 30 Dec, 2025 |
| Agnes C Kim | - | 0 | 10,737,355 | 30 Dec, 2025 |
| Agnes C Kim | - | 0 | 10,737,355 | 30 Dec, 2025 |
| John T Kim | - | 0 | 9,846,944 | 30 Dec, 2025 |
| John T Kim | - | 0 | 9,846,944 | 30 Dec, 2025 |
| John T Kim | - | 0 | 9,846,944 | 30 Dec, 2025 |
| John T Kim | - | 5,594,489 | 1,253,250 | 06 Nov, 2025 |
| John T Kim | - | 5,594,489 | 1,253,250 | 06 Nov, 2025 |
| John T Kim | - | 5,594,489 | 1,253,250 | 06 Nov, 2025 |
| Susan Y Kim | - | 6,110,494 | 0 | 09 Apr, 2026 |
| Susan Y Kim | - | 6,110,494 | 0 | 09 Apr, 2026 |
| Susan Y Kim | - | 6,090,494 | 0 | 08 Dec, 2025 |
| Susan Y Kim | - | 0 | 5,782,594 | 23 Dec, 2025 |
| Susan Y Kim | - | 0 | 5,782,594 | 23 Dec, 2025 |
| Susan Y Kim | - | 0 | 5,782,594 | 23 Dec, 2025 |
| Susan Y Kim | - | 0 | 3,800,000 | 12 Aug, 2024 |
| Susan Y Kim | - | 0 | 3,800,000 | 12 Aug, 2024 |
| Susan Y Kim | - | 0 | 3,800,000 | 12 Aug, 2024 |
| Susan Y Kim | - | 0 | 3,789,479 | 05 Aug, 2025 |
| Susan Y Kim | - | 0 | 3,789,479 | 05 Aug, 2025 |
| John T Kim | - | 0 | 3,789,479 | 05 Aug, 2025 |
| Management, Llc Sujoda | - | 0 | 3,789,479 | 05 Aug, 2025 |
| Susan Y Kim | - | 0 | 3,789,479 | 05 Aug, 2025 |
| Investments, Lp Sujoda | - | 3,789,479 | 0 | 05 Aug, 2025 |
| David D Kim | - | 0 | 3,789,479 | 05 Aug, 2025 |
| David D Kim | - | 0 | 3,789,479 | 05 Aug, 2025 |
| Management, Llc Sujoda | - | 0 | 3,789,479 | 05 Aug, 2025 |
| John T Kim | - | 0 | 3,789,479 | 05 Aug, 2025 |
| Investments, Lp Sujoda | - | 3,789,479 | 0 | 05 Aug, 2025 |
| David D Kim | - | 0 | 3,789,479 | 05 Aug, 2025 |
| John T Kim | - | 0 | 3,789,479 | 05 Aug, 2025 |
| Investments, Lp Sujoda | - | 3,789,479 | 0 | 05 Aug, 2025 |
| Management, Llc Sujoda | - | 0 | 3,789,479 | 05 Aug, 2025 |
| Susan Y Kim | - | 0 | 3,713,610 | 23 Nov, 2025 |
| Susan Y Kim | - | 0 | 3,713,610 | 23 Nov, 2025 |
| Susan Y Kim | - | 0 | 3,713,610 | 23 Nov, 2025 |
| Susan Y Kim | - | 0 | 3,328,065 | 20 Apr, 2022 |
| Susan Y Kim | - | 0 | 3,328,065 | 20 Apr, 2022 |
| Susan Y Kim | - | 0 | 3,328,065 | 20 Apr, 2022 |
| Susan Y Kim | - | 0 | 2,660,840 | 16 Feb, 2023 |
| Susan Y Kim | - | 0 | 2,660,840 | 16 Feb, 2023 |
| Susan Y Kim | - | 0 | 2,660,840 | 16 Feb, 2023 |
| James J Kim | - | 0 | 2,298,355 | 01 Aug, 2022 |
| James J Kim | - | 0 | 2,298,355 | 01 Aug, 2022 |
| James J Kim | - | 0 | 2,298,355 | 01 Aug, 2022 |
| Annuity Trust Under The Susan Y. Kim 2020-1 Irrevocable Trust Agreement Dated 04/01/2020 Qualified | - | 1,958,355 | 0 | 21 Jun, 2023 |
| Annuity Trust Under The Susan Y. Kim 2020-1 Irrevocable Trust Agreement Dated 04/01/2020 Qualified | - | 1,958,355 | 0 | 21 Jun, 2023 |
| Annuity Trust Under The Susan Y. Kim 2020-1 Irrevocable Trust Agreement Dated 04/01/2020 Qualified | - | 1,958,355 | 0 | 21 Jun, 2023 |
| James J Kim | - | 0 | 1,496,443 | 27 Jan, 2022 |
| James J Kim | - | 0 | 1,496,443 | 27 Jan, 2022 |
| James J Kim | - | 0 | 1,496,443 | 27 Jan, 2022 |
| Grantor Retained Annuity Trust Of James J. Kim Dtd. 8/5/2024 2024 | - | 1,235,000 | 0 | 24 Nov, 2025 |
| T. Kim 2024 Grat #1 Dtd. 08/09/2024 John | - | 1,194,000 | 0 | 06 Nov, 2025 |
| T. Kim 2024 Grat #1 Dtd. 08/09/2024 John | - | 1,194,000 | 0 | 06 Nov, 2025 |
| T. Kim 2024 Grat #1 Dtd. 08/09/2024 John | - | 1,194,000 | 0 | 06 Nov, 2025 |
| Susan Y Kim | - | 0 | 1,124,000 | 30 Dec, 2025 |
| Grantor Retained Annuity Trust Of Susan Y. Kim Dtd. 8/5/2024 2024 | - | 1,124,000 | 0 | 24 Nov, 2025 |
| Susan Y Kim | - | 0 | 1,124,000 | 30 Dec, 2025 |
| Susan Y Kim | - | 0 | 1,124,000 | 30 Dec, 2025 |
| Susan Y Kim | - | 0 | 1,117,623 | 19 Sep, 2022 |
| Susan Y Kim | - | 0 | 1,117,623 | 19 Sep, 2022 |
| Susan Y Kim | - | 0 | 1,117,623 | 19 Sep, 2022 |
| James J Kim | - | 0 | 965,000 | 24 Nov, 2025 |
| James J Kim | - | 0 | 965,000 | 24 Nov, 2025 |
| James J Kim | - | 0 | 965,000 | 24 Nov, 2025 |
| Grantor Retained Annuity Trust Of Agnes C. Kim Dtd. 8/5/2024 2024 | - | 895,000 | 0 | 24 Nov, 2025 |
| Susan Y Kim | - | 0 | 753,232 | 29 Jun, 2022 |
| Susan Y Kim | - | 0 | 753,232 | 29 Jun, 2022 |
| Susan Y Kim | - | 0 | 753,232 | 29 Jun, 2022 |
| James J Kim | - | 0 | 725,000 | 30 Dec, 2025 |
| James J Kim | - | 0 | 725,000 | 30 Dec, 2025 |
| James J Kim | - | 0 | 725,000 | 30 Dec, 2025 |
| Agnes C Kim | - | 0 | 705,000 | 24 Nov, 2025 |
| Agnes C Kim | - | 0 | 705,000 | 24 Nov, 2025 |
| Agnes C Kim | - | 0 | 705,000 | 24 Nov, 2025 |
| Guillaume Marie Jean Rutten | President And Ceo | 552,558 | 0 | 02 Apr, 2026 |
| Guillaume Marie Jean Rutten | President And Ceo | 552,558 | 0 | 02 Apr, 2026 |
| Guillaume Marie Jean Rutten | President And Ceo | 552,558 | 0 | 02 Apr, 2026 |
| Y. Kim 2012 Generation-Skipping Trust U/A Dated December 11, 2012 Susan | - | 0 | 164,678 | 24 Jan, 2022 |
| Y. Kim 2012 Generation-Skipping Trust U/A Dated December 11, 2012 Susan | - | 0 | 164,678 | 24 Jan, 2022 |
| Llc Susins, | - | 164,678 | 0 | 20 Jan, 2022 |
| Llc Susins, | - | 164,678 | 0 | 20 Jan, 2022 |
| Llc Susins, | - | 164,678 | 0 | 20 Jan, 2022 |
| Y. Kim 2012 Generation-Skipping Trust U/A Dated December 11, 2012 Susan | - | 0 | 164,678 | 24 Jan, 2022 |
| Robert Randolph Morse | - | 134,977 | 0 | 09 Apr, 2026 |
| Megan Faust | Cfo | 134,138 | 0 | 02 Apr, 2026 |
| Megan Faust | Cfo | 134,138 | 0 | 02 Apr, 2026 |
| Megan Faust | Cfo | 134,138 | 0 | 02 Apr, 2026 |
| Gil C. Tily | Cao General Counsel | 123,806 | 0 | 16 Dec, 2025 |
| Gil C. Tily | Cao General Counsel | 123,806 | 0 | 16 Dec, 2025 |
| Gil C. Tily | Cao General Counsel | 123,806 | 0 | 16 Dec, 2025 |
| David N Watson | - | 120,757 | 0 | 26 Feb, 2026 |
| David N Watson | - | 120,757 | 0 | 26 Feb, 2026 |
| David N Watson | - | 120,757 | 0 | 26 Feb, 2026 |
| Roger Anthony Carolin | - | 94,409 | 0 | 16 May, 2025 |
| James J Kim | Chief Executive Officer | 61,645 | 0 | 23 Dec, 2025 |
| James J Kim | Chief Executive Officer | 61,645 | 0 | 23 Dec, 2025 |
| James J Kim | Chief Executive Officer | 61,645 | 0 | 23 Dec, 2025 |
| T. Kim 2024 Grat #2 Dtd. 08/09/2024 John | - | 59,250 | 0 | 06 Nov, 2025 |
| T. Kim 2024 Grat #2 Dtd. 08/09/2024 John | - | 59,250 | 0 | 06 Nov, 2025 |
| T. Kim 2024 Grat #2 Dtd. 08/09/2024 John | - | 59,250 | 0 | 06 Nov, 2025 |
| Maryfrances Mccourt | - | 55,918 | 0 | 16 Dec, 2025 |
| Maryfrances Mccourt | - | 55,918 | 0 | 16 Dec, 2025 |
| Maryfrances Mccourt | - | 55,918 | 0 | 16 Dec, 2025 |
| Daniel Jl Liao | - | 40,804 | 0 | 16 May, 2025 |
| Mark N Rogers | Evp General Counsel | 38,904 | 0 | 20 Apr, 2026 |
| Mark N Rogers | Evp General Counsel | 38,904 | 0 | 18 Mar, 2026 |
| Mark N Rogers | Evp General Counsel | 38,904 | 0 | 18 Mar, 2026 |
| John Charles Stone | Executive Vice President | 31,038 | 0 | 15 Feb, 2022 |
| John Charles Stone | Executive Vice President | 31,038 | 0 | 15 Feb, 2022 |
| John Charles Stone | Executive Vice President | 31,038 | 0 | 15 Feb, 2022 |
| Douglas A Alexander | - | 29,109 | 0 | 16 May, 2025 |
| Winston J Churchill | - | 25,888 | 0 | 17 Dec, 2025 |
| Sung Shin | Executive Vice President | 15,418 | 0 | 05 Jun, 2023 |
| Sung Shin | Executive Vice President | 15,418 | 0 | 05 Jun, 2023 |
| Sung Shin | Executive Vice President | 15,418 | 0 | 05 Jun, 2023 |
| Farshad Haghighi | Executive Vice President | 8,354 | 0 | 26 Feb, 2026 |
| Farshad Haghighi | Executive Vice President | 8,354 | 0 | 26 Feb, 2026 |
| Farshad Haghighi | Executive Vice President | 8,354 | 0 | 26 Feb, 2026 |
| Kevin K. Engel | President And Ceo | 7,920 | 0 | 02 Apr, 2026 |
| Kevin K. Engel | President And Ceo | 7,920 | 0 | 02 Apr, 2026 |
| Kevin K. Engel | President And Ceo | 7,920 | 0 | 02 Apr, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 16 Apr, 2026 | Mark N Rogers | Common Stock | A | 5,000 | $7.40 | 43,904 | D | M |
| 16 Apr, 2026 | Mark N Rogers | Common Stock | D | 5,000 | $59.43 | 38,904 | D | S |
| 16 Apr, 2026 | Mark N Rogers | Employee Stock Option (Right-to-Buy) | D | 5,000 | $0.00 | 90,000 | D | M |
| 07 Apr, 2026 | Robert Randolph Morse | Common Stock | A | 20,000 | $5.66 | 137,355 | D | M |
| 07 Apr, 2026 | Susan Y Kim | Common Stock | A | 20,000 | $5.66 | 6,110,494 | D | M |
| 07 Apr, 2026 | Susan Y Kim | Common Stock | A | 20,000 | $5.66 | 6,110,494 | D | M |
| 07 Apr, 2026 | Robert Randolph Morse | Common Stock | D | 2,378 | $0.00 | 134,977 | D | F |
| 07 Apr, 2026 | Robert Randolph Morse | Director Stock Option (Right-to-Buy) | D | 20,000 | $0.00 | 0 | D | M |
| 07 Apr, 2026 | Susan Y Kim | Director stock option (right to buy) | D | 20,000 | $0.00 | 0 | D | M |
| 07 Apr, 2026 | Susan Y Kim | Director stock option (right to buy) | D | 20,000 | $0.00 | 0 | D | M |
| 31 Mar, 2026 | David N Watson | Restricted Stock Units | A | 18 | $0.00 | 9,893 | D | A |
| 31 Mar, 2026 | Kevin K. Engel | Common Stock | A | 8,692 | $0.00 | 11,645 | D | M |
| 31 Mar, 2026 | Guillaume Marie Jean Rutten | Common Stock | A | 8,692 | $0.00 | 552,558 | D | M |
| 31 Mar, 2026 | Gil C. Tily | Restricted Stock Units | A | 18 | $0.00 | 9,893 | D | A |
| 31 Mar, 2026 | Megan Faust | Common Stock | A | 8,692 | $0.00 | 137,863 | D | M |
| 31 Mar, 2026 | David N Watson | Restricted Stock Units | A | 18 | $0.00 | 9,893 | D | A |
| 31 Mar, 2026 | Gil C. Tily | Restricted Stock Units | A | 18 | $0.00 | 9,893 | D | A |
| 31 Mar, 2026 | Kevin K. Engel | Common Stock | A | 8,692 | $0.00 | 11,645 | D | M |
| 31 Mar, 2026 | Megan Faust | Common Stock | A | 8,692 | $0.00 | 137,863 | D | M |
| 31 Mar, 2026 | Maryfrances Mccourt | Restricted Stock Units | A | 16 | $0.00 | 8,896 | D | A |