Amkor Technology, Inc.
AMKR- Exchange
- Nasdaq
- Industry
- Semiconductors & Related Devices
- SEC CIK
- 0001047127
In the last 90 days, Amkor Technology, Inc. insiders filed 0 open-market purchases and 8 sales; 648 institutions reported holding it in 13F filings for Q2 2026, worth $9.95B in total; Maverick Capital is the only superinvestor holding it.
Open-market trades, last 90 days
Open-market purchases (P) and sales (S) by Amkor Technology, Inc. insiders, counted by Form 4 filing. Trades with a flagged price and duplicate filings are left out.
- Open-market buys
- 0 filings
- Open-market sells
- 8 filings
- 5 insiders, $3.97M in total
- Insiders trading
- 5
- Net value
- −$3.97M
- Purchases minus sales
Insider roster
Directors, officers and 10% owners who have filed a Form 4 for Amkor Technology, Inc., current and former, most recent filer first. Last reported holding is the position after the last non-derivative trade in their latest filing.
| Name | Title | Last reported holding | Last filing | Filings, past year |
|---|---|---|---|---|
| Kim Susan Y | Director, 10% Owner, Other: Member of 10% owner group (5) | 6,120,387 | Sep 24, 2026 | 10 |
| Watson David N | Director | 130,650 | Sep 24, 2026 | 6 |
| Tily Gil C. | Director | 118,699 | Sep 24, 2026 | 7 |
| Rutten Guillaume Marie Jean | Director | 461,732 | Sep 24, 2026 | 17 |
| Morse Robert Randolph | Director | 134,977 | Sep 24, 2026 | 6 |
| McCourt MaryFrances | Director | 65,811 | Sep 24, 2026 | 6 |
| Liao Daniel JL | Director | 40,804 | Sep 24, 2026 | 5 |
| Churchill Winston J | Director | 28,681 | Sep 24, 2026 | 9 |
| Carolin Roger Anthony | Director | 94,409 | Sep 24, 2026 | 6 |
| Alexander Douglas A | Director | 29,109 | Sep 24, 2026 | 7 |
| Faust Megan | CFO | 134,105 | Sep 10, 2026 | 13 |
| Rogers Mark N | EVP & General Counsel | 38,904 | Aug 19, 2026 | 13 |
| Engel Kevin | President and CEO | 9,666 | Jul 31, 2026 | 11 |
| Kim Agnes C | Other: Member of 10% owner group (4) | 11,187,355Indirect | Jul 22, 2026 | 4 |
| Kim James J | 10% Owner, Other: Member of 10% owner group (5) | 511,645 | Jul 22, 2026 | 4 |
| Buntyn Cherie | Chief Accounting Officer | – | Mar 16, 2026 | 1 |
| Haghighi Farshad | Executive Vice President | 8,354 | Feb 26, 2026 | 5 |
| Kim John T | 10% Owner, Other: Member of 10% owner group (6) | 29,594,980Indirect | Feb 17, 2026 | 3 |
| 915 Investments, LP | Other: Member of 10% owner group (2) | 29,594,980 | Feb 17, 2026 | 1 |
| 2023 Grantor Retained Annuity Trust of Susan Y. Kim Dated 9/15/2023 | Other: Member of 10% owner group (2) | 0 | Dec 30, 2025 | 2 |
| 2024 Grantor Retained Annuity Trust of Susan Y. Kim dtd. 8/5/2024 | Other: Member of 10% owner group (2) | 1,124,000 | Nov 24, 2025 | 1 |
| 2024 Grantor Retained Annuity Trust of James J. Kim dtd. 8/5/2024 | Other: Member of 10% owner group (2) | 1,235,000 | Nov 24, 2025 | 1 |
| 2024 Grantor Retained Annuity Trust of Agnes C. Kim dtd. 8/5/2024 | Other: Member of 10% owner group (2) | 895,000 | Nov 24, 2025 | 1 |
| John T. Kim 2024 GRAT #2 dtd. 08/09/2024 | Other: Member of 10% owner group | 59,250 | Nov 6, 2025 | 1 |
| John T. Kim 2024 GRAT #1 dtd. 08/09/2024 | Other: Member of 10% owner group | 1,194,000 | Nov 6, 2025 | 1 |
| Liu John D | Director | 2,983 | Sep 25, 2025 | 0 |
| Kim David D | Other: Member of 10% owner group (5) | 3,789,479Indirect | Aug 5, 2025 | 0 |
| SUJODA Investments, LP | Other: Member of 10% owner group (2) | 3,789,479 | Aug 5, 2025 | 0 |
| Sujoda Management, LLC | Other: Member of 10% owner group (4) | 3,789,479Indirect | Aug 5, 2025 | 0 |
| 2023 Grantor Retained Annuity Trust of James J. Kim Dated 4/26/2023 | Other: Member of 10% owner group (3) | 0 | Aug 5, 2025 | 0 |
| 2023 Grantor Retained Annuity Trust of Agnes C. Kim Dated 4/26/2023 | Other: Member of 10% owner group (3) | 0 | Aug 5, 2025 | 0 |
| James J. Kim 2021 Qualified Annuity Trust U/A Dated 12/15/2021 | Other: Member of 10% owner group (3) | 0 | Jan 22, 2025 | 0 |
| Agnes C. Kim 2020-1 Qualified Annuity Trust Under Agreement Dated 12/16/20 | Other: Member of 10% owner group (4) | 0 | Dec 27, 2023 | 0 |
| Family Trust Under the Susan Y. Kim 2012 Irrevocable Trust Agreement Dated 7/26/12 | Other: Member of 10% owner group (2) | 0 | Nov 16, 2023 | 0 |
| Alexandra Investments, LLC | Other: Member of 10% owner group (2) | 0 | Nov 16, 2023 | 0 |
| Jacqueline Investments, LLC | Other: Member of 10% owner group (2) | 0 | Nov 16, 2023 | 0 |
| Dylan Investments, LLC | Other: Member of 10% owner group (2) | 0 | Nov 16, 2023 | 0 |
| Blaney Liam E | Other: Member of 10% owner group (4) | 0Indirect | Nov 16, 2023 | 0 |
| Family Trust Under the Susan Y. Kim 2020-1 Irrevocable Trust Agreement Dated 04/01/2020 | Other: Member of 10% owner group (2) | 0 | Nov 16, 2023 | 0 |
| Family Trust under the Susan Y. Kim 2018-1 Irrevocable Trust Agreement dtd. 8/29/18 | Other: Member of 10% owner group (2) | 0 | Nov 16, 2023 | 0 |
| Qualified Annuity Trust under the Susan Y. Kim 2018-1 Irrevocable Trust Agreement dtd August 29, 2018 | Other: Member of 10% owner group (2) | 0 | Oct 23, 2023 | 0 |
| Qualified Annuity Trust under the Susan Y. Kim 2020-1 Irrevocable Trust Agreement dated 04/01/2020 | Other: Member of 10% owner group (2) | 0 | Sep 18, 2023 | 0 |
| John T. Kim 2018 Irrevocable Trust Agreement Dated 2/6/18 | Other: Member of 10% owner group (2) | 0 | Jul 31, 2023 | 0 |
| Qualified Annuity Trust under the James J. Kim 2020-1 Annuity Trust Agreement dated 04/01/2020 | Other: Member of 10% owner group (3) | 0 | Jul 27, 2023 | 0 |
| Shin Sung | Executive Vice President | 15,418 | Jun 5, 2023 | 0 |
| Qualified Annuity Trust under the James J. Kim 2019-1 Qualified Annuity Trust Agreement dtd September10,2019 | Other: Member of 10% owner group (4) | 0 | Dec 19, 2022 | 0 |
| Stone John Charles | Executive Vice President | 31,038 | Feb 15, 2022 | 0 |
| Susan Y. Kim 2012 Generation-Skipping Trust U/A Dated December 11, 2012 | Other: Member of 10% owner group (2) | 164,678Indirect | Jan 24, 2022 | 0 |
| Susins, LLC | Other: Member of 10% owner group (2) | 164,678 | Jan 21, 2022 | 0 |
| Qualified Annuity Trust under the James J. Kim 2018-1 Qualified Annuity Trust Agreement dtd 8/30/18 | Other: Member of 10% owner group (4) | 0 | Jan 20, 2022 | 0 |
Showing the 50 most recent filers.
Insider trades
Each row adds up one type of transaction in one Form 4 filing. Only open-market purchases (P) and sales (S) are shown by default; use the filters to see grants, option exercises and other codes.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Jul 16, 2021 (view filing) | Jul 15 | 1 day | Faust MeganCFO | SSale | −5.00K | $22.43 | −$112.2K | −25.2%14.8K after | |
| Jul 16, 2021 (view filing) | Jul 15 | 1 day | Rutten Guillaume Marie JeanPresident and CEO | SSale | −25.0K | $22.44 | −$561.1K | −6.0%395.0K after | 2 lots |
| Jul 30, 2021 (view filing) | Jul 29 | 1 day | Tily Gil C.Director | SSale | −15.0K | $24.59 | −$368.9K | −10.4%129.2K after | |
| Aug 4, 2021 (view filing) | Aug 2 | 2 days | McCourt MaryFrancesDirector | SSale | −20.0K | $25.24 | −$504.8K | −31.5%43.6K after | |
| Aug 5, 2021 (view filing) | Aug 4 | 1 day | McCourt MaryFrancesDirector | SSale | −2.50K | $26.95 | −$67.4K | −5.7%41.1K after | |
| Aug 18, 2021 (view filing) | Aug 16 | 2 days | Rutten Guillaume Marie JeanPresident and CEO | SSale | −25.0K | $25.93 | −$648.3K | −6.2%380.0K after | |
| Aug 19, 2021 (view filing) | Aug 19 | Same day | Faust MeganCFO | SSale | −5.00K | $23.98 | −$119.9K | −25.2%14.8K after | |
| Aug 27, 2021 (view filing) | Aug 26 | 1 day | Stone John CharlesExecutive Vice President | SSale | −9.38K | $26.30 | −$246.6K | −22.9%31.6K after | |
| Sep 17, 2021 (view filing) | Sep 15 | 2 days | Rutten Guillaume Marie JeanPresident and CEO | SSale | −25.0K | $28.46 | −$711.5K | −6.4%365.0K after | |
| Sep 20, 2021 (view filing) | Sep 16 | 4 days | Faust MeganCFO | SSale | −5.00K | $28.63 | −$143.2K | −25.2%14.8K after | |
| Oct 18, 2021 (view filing) | Oct 15 | 3 days | Rutten Guillaume Marie JeanPresident and CEO | SSale | −25.0K | $22.43 | −$560.8K | −6.7%350.0K after | |
| Oct 22, 2021 (view filing) | Oct 21 | 1 day | Faust MeganCFO | SSale | −5.00K | $22.94 | −$114.7K | −25.2%14.8K after | |
| Nov 16, 2021 (view filing) | Nov 15 | 1 day | Rutten Guillaume Marie JeanPresident and CEO | SSale | −25.0K | $23.35 | −$583.8K | −6.9%335.0K after | |
| Nov 19, 2021 (view filing) | Nov 18 | 1 day | Faust MeganCFO | SSale | −5.00K | $24.63 | −$123.2K | −25.2%14.8K after | |
| Nov 19, 2021 (view filing) | Nov 19 | Same day | Stone John CharlesExecutive Vice President | SSale | −9.38K | $25.00 | −$234.4K | −22.9%31.6K after | |
| Dec 1, 2021 (view filing) | Nov 29 | 2 days | Churchill Winston JDirector | SSale | −20.0K | $22.42 | −$448.4K | −58.1%14.4K after | |
| Dec 17, 2021 (view filing) | Dec 16 | 1 day | Faust MeganCFO | SSale | −5.00K | $22.97 | −$114.8K | −25.2%14.8K after | |
| Dec 17, 2021 (view filing) | Dec 15 | 2 days | Rutten Guillaume Marie JeanPresident and CEO | SSale | −25.0K | $22.05 | −$551.3K | −7.2%320.0K after | |
| Dec 28, 2021 (view filing) | Jan 15 | 347 daysLate | Kim David DOther: Exhibit 99.1 | SSale | −6.89K | $18.04 | −$124.4K | −0.3%2.69M after | |
| Jan 3, 2022 (view filing) | Dec 30, 2021 | 4 days | Kim David DOther: Member of 10% owner group (7) | SSale | −3.71M | $24.68 | −$91.6M | −60.0%2.48M after | 3 lots |
| Jan 4, 2022 (view filing) | Dec 30, 2021 | 5 days | SUJODA Investments, LPOther: Member of 10% owner group (5) | SSale | −3.71M | $24.68 | −$91.6M | −60.0%2.48M after | 3 lotsDuplicate filing |
| Jan 4, 2022 (view filing) | Dec 30, 2021 | 5 days | Sujoda Management, LLCOther: Member of 10% owner group (6) | SSale | −3.71M | $24.68 | −$91.6M | −60.0%2.48M after | 3 lotsDuplicate filing |
| Jan 4, 2022 (view filing) | Dec 30, 2021 | 5 days | Kim Agnes COther: Member of 10% owner group (4) | PPurchase | +1.86M | $24.68 | +$45.8M | New position1.86M after | 2 lots |
| Jan 4, 2022 (view filing) | Dec 30, 2021 | 5 days | Kim James JDirector, 10% Owner, Other: Member of 10% owner group (6) | PPurchase | +1.86M | $24.68 | +$45.8M | +17,184.5%1.87M after | 2 lots |
| Jan 4, 2022 (view filing) | Dec 30, 2021 | 5 days | Kim James JDirector, 10% Owner, Other: Member of 10% owner group (6) | PPurchase | +1.86M | $24.68 | +$45.8M | +8,068,491.3%1.86M after | 2 lots |
| Jan 4, 2022 (view filing) | Dec 30, 2021 | 5 days | Kim John T10% Owner, Other: Member of 10% owner group | SSale | −3.71M | $24.68 | −$91.6M | −14.5%22.0M after | From original3 lots |
| Jan 4, 2022 (view filing) | Dec 30, 2021 | 5 days | Kim Susan YDirector, 10% Owner, Other: Member of 10% owner group | SSale | −3.71M | $24.68 | −$91.6M | −14.5%22.0M after | From original3 lotsDuplicate filing |
| Jan 20, 2022 (view filing) | Jan 18 | 2 days | Rutten Guillaume Marie JeanPresident and CEO | SSale | −25.0K | $23.78 | −$594.5K | −7.6%305.0K after | |
| Jan 21, 2022 (view filing) | Jan 20 | 1 day | Faust MeganCFO | SSale | −5.00K | $22.77 | −$113.8K | −25.2%14.8K after | |
| Feb 17, 2022 (view filing) | Feb 15 | 2 days | Rutten Guillaume Marie JeanPresident and CEO | SSale | −25.0K | $22.00 | −$550.0K | −7.9%290.0K after | |
| Feb 18, 2022 (view filing) | Feb 17 | 1 day | Faust MeganCFO | SSale | −5.00K | $24.41 | −$122.0K | −26.0%14.2K after | |
| Mar 17, 2022 (view filing) | Mar 16 | 1 day | Rutten Guillaume Marie JeanPresident and CEO | SSale | −25.0K | $22.00 | −$550.0K | −7.3%318.0K after | |
| Jun 13, 2022 (view filing) | Jun 9 | 4 days | Faust MeganCFO | SSale | −6.00K | $19.90 | −$119.4K | −41.3%8.51K after | |
| Jul 25, 2022 (view filing) | Jul 21 | 4 days | Faust MeganCFO | SSale | −12.0K | $19.07 | −$228.8K | −58.5%8.51K after | |
| Aug 4, 2022 (view filing) | Aug 2 | 2 days | Rutten Guillaume Marie JeanPresident and CEO | SSale | −60.0K | $22.01 | −$1.32M | −19.7%245.0K after | |
| Aug 17, 2022 (view filing)5:14 PM ET | Aug 15 | 2 days | Rutten Guillaume Marie JeanPresident and CEO | SSale | −30.0K | $22.41 | −$672.3K | −11.5%230.0K after | |
| Aug 19, 2022 (view filing) | Aug 18 | 1 day | Faust MeganCFO | SSale | −6.00K | $22.05 | −$132.3K | −41.3%8.51K after | |
| Oct 7, 2022 (view filing) | Oct 6 | 1 day | Faust MeganCFO | SSale | −6.00K | $19.07 | −$114.4K | −41.3%8.51K after | |
| Oct 21, 2022 (view filing) | Oct 21 | Same day | Faust MeganCFO | SSale | −6.00K | $19.07 | −$114.4K | −41.3%8.51K after | |
| Nov 10, 2022 (view filing) | Nov 8 | 2 days | Rutten Guillaume Marie JeanPresident and CEO | SSale | −60.0K | $22.00 | −$1.32M | −23.1%200.0K after | |
| Nov 14, 2022 (view filing) | Nov 11 | 3 days | Haghighi FarshadExecutive Vice President | SSale | −25.0K | $25.00 | −$625.0K | −70.9%10.3K after | |
| Nov 17, 2022 (view filing) | Nov 15 | 2 days | Haghighi FarshadExecutive Vice President | SSale | −16.1K | $27.13 | −$436.1K | −97.4%434 after | 2 lots |
| Nov 17, 2022 (view filing) | Nov 15 | 2 days | Rutten Guillaume Marie JeanPresident and CEO | SSale | −30.0K | $27.46 | −$823.7K | −14.0%185.0K after | 2 lots |
| Nov 18, 2022 (view filing) | Nov 17-18 | 1 day | Faust MeganCFO | SSale | −36.0K | $28.68 | −$1.03M | −80.9%8.51K after | 2 lots |
| Dec 9, 2022 (view filing) | Dec 7 | 2 days | Churchill Winston JDirector | SSale | −20.0K | $26.00 | −$520.0K | −58.1%14.4K after | |
| Dec 16, 2022 (view filing) | Dec 15 | 1 day | Faust MeganCFO | SSale | −6.00K | $25.77 | −$154.6K | −41.3%8.51K after | |
| Dec 16, 2022 (view filing) | Dec 15 | 1 day | Rutten Guillaume Marie JeanPresident and CEO | SSale | −30.0K | $25.68 | −$770.4K | −15.0%170.0K after | |
| Jan 19, 2023 (view filing) | Jan 17 | 2 days | Rutten Guillaume Marie JeanPresident and CEO | SSale | −30.0K | $30.73 | −$921.9K | −16.2%155.0K after | |
| Jan 20, 2023 (view filing) | Jan 19 | 1 day | Faust MeganCFO | SSale | −6.00K | $29.28 | −$175.7K | −41.3%8.51K after | |
| Feb 17, 2023 (view filing) | Feb 16 | 1 day | Churchill Winston JDirector | SSale | −20.0K | $27.29 | −$545.8K | −58.1%14.4K after |