Amkor Technology, Inc.
A maker of outsourced semiconductor assembly and test services, Amkor packages and tests the chips that power smartphones, tablets, cars, and computers for customers like Apple and Qualcomm. Founded in 1968 by Joo-Jin (James) Kim in Pennsylvania, the company began as a bridge between U.S. chip design and his father's Korean manufacturing operations. Its name blends "America" and "Korea," reflecting that two-country origin story.
Sold 10.00M
Granted 994.9K
Sold 10.00M
Granted 265.0K · Sold 130.0K
Granted 20.0K
Granted 82.5K · Sold 2.0K
Granted 29.9K
Granted 9.9K · Sold 35.0K
Granted 20.0K · Sold 20.0K
Granted 29.9K · Sold 20.0K
Granted 96.3K · Sold 70.0K
Granted 5.0K · Sold 5.0K
Granted 19.9K · Sold 17.0K
Granted 18.1K · Sold 11.0K
Granted 29.6K · Sold 27.4K
Granted 35.2K · Sold 17.8K
| Insider | Stake change | Holds now | Granted / vested | Bought | Sold |
|---|---|---|---|---|---|
| Kim John T10% owner, Member of 10% owner group (6) · 6 transactions | — | 104.87M | — | — | 10.00M |
| Kim Susan YDirector, 10% owner, Member of 10% owner group (5) · 12 transactions | — | 78.09M | 994.9K | — | — |
| 915 Investments, LPMember of 10% owner group (2) · 1 transaction | -25.3% | 29.59M | — | — | 10.00M |
| Kim James J10% owner, Member of 10% owner group (4) · 4 transactions | — | 23.77M | — | — | — |
| Kim Agnes CMember of 10% owner group (3) · 4 transactions | — | 21.45M | — | — | — |
| 2024 Grantor Retained Annuity Trust of James J. Kim dtd. 8/5/2024Member of 10% owner group (2) · 1 transaction | -43.9% | 1.24M | — | — | — |
| John T. Kim 2024 GRAT #1 dtd. 08/09/2024Member of 10% owner group · 1 transaction | -40.3% | 1.19M | — | — | — |
| 2024 Grantor Retained Annuity Trust of Susan Y. Kim dtd. 8/5/2024Member of 10% owner group (2) · 1 transaction | -43.8% | 1.12M | — | — | — |
| 2024 Grantor Retained Annuity Trust of Agnes C. Kim dtd. 8/5/2024Member of 10% owner group (2) · 1 transaction | -44.1% | 895.0K | — | — | — |
| Rutten Guillaume Marie JeanDirector · 18 transactions | +36.7% | 503.0K | 265.0K | — | 130.0K |
| Morse Robert RandolphDirector · 2 transactions | +15% | 135.0K | 20.0K | — | — |
| Faust MeganCFO · 20 transactions | +45.5% | 132.1K | 82.5K | — | 2.0K |
| Watson David NDirector · 3 transactions | +26.9% | 130.7K | 29.9K | — | — |
| Tily Gil C.Director · 3 transactions | -17.5% | 118.7K | 9.9K | — | 35.0K |
| Carolin Roger AnthonyDirector · 2 transactions | 0% | 94.4K | 20.0K | — | 20.0K |
| McCourt MaryFrancesDirector · 3 transactions | +17.7% | 65.8K | 29.9K | — | 20.0K |
| John T. Kim 2024 GRAT #2 dtd. 08/09/2024Member of 10% owner group · 1 transaction | -40.8% | 59.3K | — | — | — |
| Rogers Mark NEVP & General Counsel · 28 transactions | +84% | 43.9K | 96.3K | — | 70.0K |
| Alexander Douglas ADirector · 4 transactions | 0% | 29.1K | 5.0K | — | 5.0K |
| Churchill Winston JDirector · 6 transactions | +11.2% | 28.8K | 19.9K | — | 17.0K |
| Engel KevinExecutive Vice President · 13 transactions | -10.3% | 9.0K | 18.1K | — | 11.0K |
| Haghighi FarshadExecutive Vice President · 22 transactions | -60.1% | 8.4K | 29.6K | — | 27.4K |
| Engel Kevin K.President and CEO, Director · 16 transactions | — | 7.9K | 35.2K | — | 17.8K |
| 2023 Grantor Retained Annuity Trust of Susan Y. Kim Dated 9/15/2023Member of 10% owner group (2) · 2 transactions | -100% | 0 | — | — | — |
Select a row to see that insider’s individual transactions. Sum of the holdings confirmed in the 12 months before this insider's last filing. A Form 4 reports a holding per line — held directly, or through a named trust, partnership or foundation, and in each share class separately — never a person’s total. Lines not restated in that time are left out and shown apart: an active filer restates what they still hold, so a line they did not restate is more often an entity since renamed, whose shares a successor line reports too. An amber marker means some were left out.
Net open-market activity over the last year: -20.36M shares. Grants, option exercises and tax withholding are excluded — they are compensation mechanics, not decisions to buy or sell.