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 |
|---|---|---|---|---|---|---|---|---|---|
| Feb 17, 2023 (view filing) | Feb 16 | 1 day | Faust MeganCFO | SSale | −6.00K | $27.03 | −$162.2K | −38.4%9.61K after | |
| Feb 17, 2023 (view filing) | Feb 15 | 2 days | Haghighi FarshadExecutive Vice President | SSale | −6.25K | $26.89 | −$168.1K | −88.7%794 after | |
| Feb 17, 2023 (view filing) | Feb 15 | 2 days | Rutten Guillaume Marie JeanPresident and CEO | SSale | −30.0K | $26.97 | −$809.1K | −17.6%140.0K after | |
| Feb 24, 2023 (view filing) | Feb 22 | 2 days | Kim John T10% Owner, Other: Member of 10% owner group (9) | SSale | −1.92M | $25.28 | −$48.5M | −13.8%12.0M after | 5 lots |
| Feb 24, 2023 (view filing) | Feb 22 | 2 days | Kim Susan YDirector, 10% Owner, Other: Member of 10% owner group (10) | SSale | −1.92M | $25.28 | −$48.5M | −20.9%7.26M after | 5 lots |
| Feb 24, 2023 (view filing) | Feb 23 | 1 day | Engel KevinExecutive Vice President | SSale | −14.3K | $25.26 | −$360.0K | −82.5%3.02K after | |
| Mar 1, 2023 (view filing) | Feb 27 | 2 days | Tily Gil C.Director | SSale | −20.0K | $25.81 | −$516.2K | −12.7%137.9K after | |
| Mar 17, 2023 (view filing) | Mar 15 | 2 days | Rutten Guillaume Marie JeanPresident and CEO | SSale | −30.0K | $24.19 | −$725.7K | −18.2%134.8K after | |
| Mar 17, 2023 (view filing) | Mar 16 | 1 day | Faust MeganCFO | SSale | −6.00K | $24.08 | −$144.5K | −14.5%35.4K after | |
| Apr 19, 2023 (view filing) | Apr 17 | 2 days | Rutten Guillaume Marie JeanPresident and CEO | SSale | −30.0K | $23.92 | −$717.6K | −20.0%119.8K after | |
| Apr 21, 2023 (view filing) | Apr 20 | 1 day | Faust MeganCFO | SSale | −6.00K | $23.29 | −$139.7K | −14.5%35.4K after | |
| May 25, 2023 (view filing) | May 24 | 1 day | Faust MeganCFO | SSale | −2.70K | $22.66 | −$61.2K | −7.1%35.4K after | |
| Jun 5, 2023 (view filing) | Jun 1 | 4 days | Shin SungExecutive Vice President | SSale | −5.00K | $24.93 | −$124.7K | −24.5%15.4K after | |
| Jun 6, 2023 (view filing) | Jun 2 | 4 days | Engel KevinExecutive Vice President | SSale | −3.57K | $25.42 | −$90.7K | −100.0%0 after | |
| Jun 13, 2023 (view filing) | Jun 9 | 4 days | Faust MeganCFO | SSale | −2.70K | $26.55 | −$71.7K | −7.1%35.4K after | |
| Jun 20, 2023 (view filing) | Jun 16 | 4 days | Faust MeganCFO | SSale | −2.70K | $26.38 | −$71.2K | −7.1%35.4K after | |
| Jul 25, 2023 (view filing) | Jul 21 | 4 days | Faust MeganCFO | SSale | −2.70K | $28.41 | −$76.7K | −7.1%35.4K after | |
| Aug 22, 2023 (view filing) | Aug 18 | 4 days | Faust MeganCFO | SSale | −2.70K | $24.79 | −$66.9K | −7.1%35.4K after | |
| Sep 8, 2023 (view filing) | Sep 6 | 2 days | 915 Investments, LPOther: Member of 10% owner group (2) | SSale | −10.0M | $23.22 | −$232.2M | −20.2%39.6M after | |
| Sep 8, 2023 (view filing) | Sep 6 | 2 days | Kim Agnes COther: Member of 10% owner group (3) | SSale | −10.0M | $23.22 | −$232.2M | −15.4%55.0M after | |
| Sep 8, 2023 (view filing) | Sep 6 | 2 days | Kim James JDirector, 10% Owner, Other: Member of 10% owner group (4) | SSale | −10.0M | $23.22 | −$232.2M | −20.2%39.6M after | Duplicate filing |
| Sep 19, 2023 (view filing) | Sep 15 | 4 days | Faust MeganCFO | SSale | −2.70K | $22.68 | −$61.2K | −7.1%35.4K after | |
| Oct 24, 2023 (view filing) | Oct 20 | 4 days | Faust MeganCFO | SSale | −2.70K | $22.52 | −$60.8K | −7.1%35.4K after | |
| Nov 3, 2023 (view filing) | Nov 3 | Same day | Rogers Mark NEVP & General Counsel | SSale | −5.00K | $23.84 | −$119.2K | −19.4%20.8K after | |
| Nov 20, 2023 (view filing) | Nov 17 | 3 days | Faust MeganCFO | SSale | −2.70K | $26.19 | −$70.7K | −7.1%35.4K after | |
| Dec 6, 2023 (view filing) | Dec 4 | 2 days | Tily Gil C.Director | SSale | −8.81K | $28.10 | −$247.5K | −6.4%129.2K after | |
| Dec 6, 2023 (view filing) | Dec 4 | 2 days | Carolin Roger AnthonyDirector | SSale | −20.0K | $28.31 | −$566.2K | −29.2%48.4K after | |
| Dec 19, 2023 (view filing) | Dec 15 | 4 days | Faust MeganCFO | SSale | −2.70K | $33.45 | −$90.3K | −7.1%35.4K after | |
| Jan 23, 2024 (view filing) | Jan 19 | 4 days | Faust MeganCFO | SSale | −2.70K | $32.00 | −$86.4K | −7.1%35.4K after | |
| Feb 21, 2024 (view filing) | Feb 16 | 5 days | Faust MeganCFO | SSale | −2.70K | $30.34 | −$81.9K | −6.5%38.8K after | |
| Feb 26, 2024 (view filing) | Feb 22 | 4 days | Rutten Guillaume Marie JeanPresident and CEO | SSale | −25.0K | $30.63 | −$765.8K | −16.8%123.7K after | 10b5-1 |
| Mar 8, 2024 (view filing) | Mar 7 | 1 day | Churchill Winston JDirector | SSale | −11.9K | $36.20 | −$430.9K | −51.3%11.3K after | |
| Mar 8, 2024 (view filing) | Mar 6 | 2 days | Haghighi FarshadExecutive Vice President | SSale | −9.91K | $33.70 | −$334.0K | −54.3%8.35K after | |
| Mar 19, 2024 (view filing) | Mar 15 | 4 days | Faust MeganCFO | SSale | −2.80K | $31.09 | −$87.1K | −5.0%53.0K after | |
| Mar 19, 2024 (view filing) | Mar 15 | 4 days | Rutten Guillaume Marie JeanPresident and CEO | SSale | −25.0K | $31.23 | −$780.8K | −16.7%124.5K after | 10b5-1 |
| Apr 18, 2024 (view filing) | Apr 16 | 2 days | Rutten Guillaume Marie JeanPresident and CEO | SSale | −25.0K | $31.17 | −$779.3K | −17.9%114.5K after | 10b5-1 |
| May 3, 2024 (view filing) | May 2 | 1 day | Rogers Mark NEVP & General Counsel | SSale | −5.00K | $31.30 | −$156.5K | −16.5%25.3K after | |
| May 7, 2024 (view filing) | May 3 | 4 days | Tily Gil C.Director | SSale | −20.0K | $32.20 | −$644.0K | −13.4%129.2K after | |
| May 17, 2024 (view filing) | May 15 | 2 days | Rutten Guillaume Marie JeanPresident and CEO | SSale | −25.0K | $33.37 | −$834.3K | −19.3%104.5K after | 10b5-1 |
| Jun 12, 2024 (view filing) | Jun 10 | 2 days | Engel KevinExecutive Vice President | SSale | −4.92K | $33.22 | −$163.5K | −100.0%0 after | |
| Jun 20, 2024 (view filing) | Jun 17 | 3 days | Rutten Guillaume Marie JeanPresident and CEO | SSale | −25.0K | $34.82 | −$870.5K | −20.9%94.5K after | 10b5-1 |
| Jul 17, 2024 (view filing) | Jul 15 | 2 days | Rutten Guillaume Marie JeanPresident and CEO | SSale | −25.0K | $42.94 | −$1.07M | −16.3%128.3K after | 2 lots10b5-1 |
| Aug 15, 2024 (view filing) | Aug 14 | 1 day | Engel KevinExecutive Vice President | SSale | −4.72K | $32.64 | −$154.1K | −100.0%0 after | |
| Aug 19, 2024 (view filing) | Aug 15 | 4 days | Rutten Guillaume Marie JeanPresident and CEO | SSale | −25.0K | $32.56 | −$814.0K | −10.0%225.0K after | 10b5-1 |
| Aug 29, 2024 (view filing) | Aug 27 | 2 days | Churchill Winston JDirector | SSale | −20.0K | $32.97 | −$659.4K | −50.2%19.9K after | |
| Sep 18, 2024 (view filing) | Sep 16 | 2 days | Rutten Guillaume Marie JeanPresident and CEO | SSale | −18.1K | $30.00 | −$543.8K | −7.8%215.0K after | 10b5-1 |
| Oct 17, 2024 (view filing) | Oct 15 | 2 days | Rutten Guillaume Marie JeanPresident and CEO | SSale | −10.0K | $31.51 | −$315.1K | −4.7%205.0K after | 10b5-1 |
| Feb 26, 2025 (view filing) | Feb 25 | 1 day | Engel KevinExecutive Vice President | SSale | −5.49K | $21.69 | −$119.1K | −79.8%1.39K after | |
| Feb 26, 2025 (view filing) | Feb 24 | 2 days | Kim James J10% Owner, Other: Member of 10% owner group (4) | SSale | −869.6K | $21.85 | −$19.0M | −92.4%71.8K after | |
| Feb 26, 2025 (view filing) | Feb 24 | 2 days | Kim Agnes COther: Member of 10% owner group (3) | SSale | −869.6K | $21.85 | −$19.0M | −8.0%10.0M after |