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 $9.97B 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 |
|---|---|---|---|---|---|---|---|---|---|
| Sep 10, 2026 (view filing)4:37 PM ET | Sep 8 | 2 days | Faust MeganCFO | SSale | −1.00K | $49.05 | −$49.0K | −0.7%134.1K after | 10b5-1 |
| Aug 19, 2026 (view filing)4:37 PM ET | Aug 17 | 2 days | Rogers Mark NEVP & General Counsel | SSale | −5.00K | $59.78 | −$298.9K | −11.4%38.9K after | 10b5-1 |
| Aug 13, 2026 (view filing)4:37 PM ET | Aug 11 | 2 days | Faust MeganCFO | SSale | −1.00K | $54.45 | −$54.5K | −0.7%135.1K after | 10b5-1 |
| Aug 11, 2026 (view filing)4:36 PM ET | Aug 7 | 4 days | Alexander Douglas ADirector | SSale | −5.00K | $55.81 | −$279.1K | −14.7%29.1K after | 10b5-1 |
| Aug 7, 2026 (view filing)4:36 PM ET | Aug 5-6 | 2 days | Rutten Guillaume Marie JeanDirector | SSale | −50.0K | $54.93 | −$2.75M | −9.8%461.7K after | 2 lots |
| Jul 31, 2026 (view filing)4:36 PM ET | Jul 30 | 1 day | Engel KevinPresident and CEO | SSale | −3.22K | $47.00 | −$151.4K | −25.0%9.67K after | |
| Jul 20, 2026 (view filing)4:38 PM ET | Jul 16 | 4 days | Rogers Mark NEVP & General Counsel | SSale | −5.00K | $65.12 | −$325.6K | −11.4%38.9K after | 10b5-1 |
| Jul 16, 2026 (view filing)4:36 PM ET | Jul 14 | 2 days | Faust MeganCFO | SSale | −1.00K | $69.91 | −$69.9K | −0.7%136.1K after | 10b5-1 |
| Jun 18, 2026 (view filing) | Jun 16 | 2 days | Rogers Mark NEVP & General Counsel | SSale | −5.00K | $86.21 | −$431.1K | −11.4%38.9K after | 10b5-1 |
| Jun 16, 2026 (view filing) | Jun 12 | 4 days | Churchill Winston JDirector | SSale | −5.00K | $78.20 | −$391.0K | −14.8%28.8K after | |
| Jun 11, 2026 (view filing) | Jun 9 | 2 days | Faust MeganCFO | SSale | −1.00K | $70.30 | −$70.3K | −0.8%132.1K after | 10b5-1 |
| May 20, 2026 (view filing) | May 18 | 2 days | Rogers Mark NEVP & General Counsel | SSale | −5.00K | $71.63 | −$358.1K | −11.4%38.9K after | 10b5-1 |
| May 20, 2026 (view filing) | May 19 | 1 day | Faust MeganCFO | SSale | −1.00K | $64.60 | −$64.6K | −0.7%133.1K after | 10b5-1 |
| May 13, 2026 (view filing) | May 11 | 2 days | Tily Gil C.Director | SSale | −15.0K | $77.30 | −$1.16M | −12.1%108.8K after | |
| May 12, 2026 (view filing) | May 8 | 4 days | Rutten Guillaume Marie JeanDirector | SSale | −50.0K | $74.28 | −$3.71M | −9.0%502.6K after | |
| May 7, 2026 (view filing) | May 5 | 2 days | Carolin Roger AnthonyDirector | SSale | −20.0K | $76.24 | −$1.52M | −17.5%94.4K after | |
| May 7, 2026 (view filing) | May 5 | 2 days | Churchill Winston JDirector | SSale | −7.00K | $76.45 | −$535.1K | −27.0%18.9K after | |
| May 7, 2026 (view filing) | May 5 | 2 days | Alexander Douglas ADirector | SSale | −5.00K | $76.58 | −$382.9K | −14.7%29.1K after | 2 lots |
| Apr 20, 2026 (view filing) | Apr 16 | 4 days | Rogers Mark NEVP & General Counsel | SSale | −5.00K | $59.43 | −$297.1K | −11.4%38.9K after | |
| Mar 18, 2026 (view filing) | Mar 16 | 2 days | Rogers Mark NEVP & General Counsel | SSale | −5.00K | $44.54 | −$222.7K | −11.4%38.9K after | 10b5-1 |
| Feb 26, 2026 (view filing) | Feb 24 | 2 days | Engel KevinPresident and CEO | SSale | −12.5K | $48.75 | −$609.4K | −80.9%2.95K after | |
| Feb 26, 2026 (view filing) | Feb 24 | 2 days | Rutten Guillaume Marie JeanDirector | SSale | −20.0K | $48.80 | −$976.0K | −3.5%543.9K after | |
| Feb 26, 2026 (view filing) | Feb 25 | 1 day | Haghighi FarshadExecutive Vice President | SSale | −15.6K | $50.50 | −$789.0K | −65.2%8.35K after | |
| Feb 18, 2026 (view filing) | Feb 17 | 1 day | Rutten Guillaume Marie JeanDirector | SSale | −10.0K | $45.89 | −$458.9K | −2.9%339.3K after | 10b5-1 |
| Feb 18, 2026 (view filing) | Feb 17 | 1 day | Engel KevinPresident and CEO | SSale | −5.32K | $46.03 | −$244.7K | −87.1%786 after | |
| Feb 18, 2026 (view filing) | Feb 17 | 1 day | Rogers Mark NEVP & General Counsel | SSale | −5.00K | $46.92 | −$234.6K | −16.7%24.9K after | 10b5-1 |
| Feb 17, 2026 (view filing) | Feb 12 | 5 days | 915 Investments, LPOther: Member of 10% owner group (2) | SSale | −10.0M | $48.49 | −$484.9M | −25.3%29.6M after | Duplicate filing |
| Feb 17, 2026 (view filing) | Feb 12 | 5 days | Kim John T10% Owner, Other: Member of 10% owner group (6) | SSale | −10.0M | $48.49 | −$484.9M | −25.3%29.6M after | |
| Jan 20, 2026 (view filing) | Jan 15 | 5 days | Rutten Guillaume Marie JeanDirector | SSale | −10.0K | $53.14 | −$531.4K | −2.9%335.4K after | 10b5-1 |
| Jan 20, 2026 (view filing) | Jan 16 | 4 days | Rogers Mark NEVP & General Counsel | SSale | −5.00K | $49.28 | −$246.4K | −17.3%23.9K after | 10b5-1 |
| Dec 17, 2025 (view filing) | Dec 15 | 2 days | Churchill Winston JDirector | SSale | −5.00K | $44.29 | −$221.4K | −16.2%25.9K after | |
| Dec 17, 2025 (view filing) | Dec 15 | 2 days | Rutten Guillaume Marie JeanPresident and CEO | SSale | −10.0K | $44.80 | −$448.0K | −2.9%336.7K after | 10b5-1 |
| Dec 17, 2025 (view filing) | Dec 16 | 1 day | Rogers Mark NEVP & General Counsel | SSale | −20.0K | $42.95 | −$859.0K | −45.6%23.9K after | 10b5-1 |
| Dec 16, 2025 (view filing) | Dec 12 | 4 days | McCourt MaryFrancesDirector | SSale | −20.0K | $46.02 | −$920.4K | −26.3%55.9K after | |
| Dec 16, 2025 (view filing) | Dec 12 | 4 days | Engel KevinExecutive Vice President | SSale | −11.0K | $46.21 | −$508.3K | −96.9%349 after | |
| Dec 16, 2025 (view filing) | Dec 12 | 4 days | Tily Gil C.Director | SSale | −20.0K | $46.44 | −$928.8K | −13.9%123.8K after | |
| Nov 19, 2025 (view filing) | Nov 17 | 2 days | Rutten Guillaume Marie JeanPresident and CEO | SSale | −10.0K | $31.68 | −$316.8K | −2.8%346.7K after | 10b5-1 |
| Nov 19, 2025 (view filing) | Nov 17 | 2 days | Rogers Mark NEVP & General Counsel | SSale | −20.0K | $31.69 | −$633.8K | −45.6%23.9K after | 10b5-1 |
| Oct 17, 2025 (view filing) | Oct 15 | 2 days | Rutten Guillaume Marie JeanPresident and CEO | SSale | −10.0K | $30.74 | −$307.4K | −2.7%356.7K after | 10b5-1 |
| Sep 23, 2025 (view filing) | Sep 23 | Same day | Rutten Guillaume Marie JeanPresident and CEO | SSale | −10.0K | $30.00 | −$300.0K | −2.7%358.0K after | 10b5-1 |
| Sep 10, 2025 (view filing) | Sep 9 | 1 day | Haghighi FarshadExecutive Vice President | SSale | −11.8K | $25.00 | −$294.8K | −58.5%8.35K after | |
| Aug 5, 2025 (view filing) | Aug 1 | 4 days | Sujoda Management, LLCOther: Member of 10% owner group (4) | PPurchase | +441.6K | $21.85 | +$9.65M | +13.2%3.79M after | Duplicate filing |
| Aug 5, 2025 (view filing) | Aug 1 | 4 days | SUJODA Investments, LPOther: Member of 10% owner group (2) | PPurchase | +441.6K | $21.85 | +$9.65M | +13.2%3.79M after | Duplicate filing |
| Aug 5, 2025 (view filing) | Aug 1 | 4 days | Kim John T10% Owner, Other: Member of 10% owner group (8) | PPurchase | +441.6K | $21.85 | +$9.65M | +13.2%3.79M after | Duplicate filing |
| Aug 5, 2025 (view filing) | Aug 1 | 4 days | Kim David DOther: Member of 10% owner group (5) | PPurchase | +441.6K | $21.85 | +$9.65M | +13.2%3.79M after | Duplicate filing |
| Aug 5, 2025 (view filing) | Aug 1 | 4 days | Kim Susan YDirector, 10% Owner, Other: Member of 10% owner group (10) | PPurchase | +441.6K | $21.85 | +$9.65M | +13.2%3.79M after | |
| Aug 5, 2025 (view filing) | Aug 1 | 4 days | Kim Agnes COther: Member of 10% owner group (3) | SSale | −441.6K | $21.85 | −$9.65M | −3.5%12.3M after | |
| Aug 5, 2025 (view filing) | Aug 1 | 4 days | Kim James J10% Owner, Other: Member of 10% owner group (4) | SSale | −441.6K | $21.85 | −$9.65M | −15.9%2.34M after | |
| Jul 31, 2025 (view filing) | Jul 31 | Same day | Rogers Mark NEVP & General Counsel | SSale | −15.0K | $23.58 | −$353.7K | −38.6%23.9K after | |
| Feb 26, 2025 (view filing) | Feb 24 | 2 days | Sujoda Management, LLCOther: Member of 10% owner group (4) | PPurchase | +869.6K | $21.85 | +$19.0M | +35.1%3.35M after | Duplicate filing |