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 |
|---|---|---|---|---|---|---|---|---|---|
| Aug 4, 2021 (view filing) | Aug 2 | 2 days | McCourt MaryFrancesDirector | SSale | −20.0K | $25.24 | −$504.8K | −31.5%43.6K after | |
| 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 | |
| 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 16, 2021 (view filing) | Jul 15 | 1 day | Faust MeganCFO | SSale | −5.00K | $22.43 | −$112.2K | −25.2%14.8K after |