InsiderTrades

Form 4 for AMKR AMKOR TECHNOLOGY, INC.

Accepted 2026-07-22 16:33:20 ET · period of report 2026-07-20 · accession 0001158840-26-000001 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
MI 2026-07-22 16:33 2026-07-20 AMKR KIM AGNES C Member of 10% owner group (4) M - OptEx $9.65 +450.0K 11.19M +4% +$4.34M

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-07-20 M A 200,000 $9.86 10,937,355 I By Spouse — — (F1) On July 20, 2026, the Reporting Person's spouse exercised a stock option to acquire 200,000 shares of the Common Stock of Amkor Technology, Inc. (the "Issuer") that was granted to the Reporting Person's spouse on February 27, 2017. (F2) The Reporting Person disclaims beneficial ownership of these securities, except to the extent of the Reporting Person's pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities, except to the extent of the Reporting Person's pecuniary interest therein, for purposes of Section 16 of the Securities Exchange Act of 1934, as amended ("Section 16"), or for any other purpose.
2 Common Common Stock 2026-07-20 M A 250,000 $9.48 11,187,355 I By Spouse — — (F3) On July 20, 2026, the Reporting Person's spouse exercised a stock option to acquire 250,000 shares of the Issuer's Common Stock that was granted to the Reporting Person's spouse on February 15, 2019. (F2) The Reporting Person disclaims beneficial ownership of these securities, except to the extent of the Reporting Person's pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities, except to the extent of the Reporting Person's pecuniary interest therein, for purposes of Section 16 of the Securities Exchange Act of 1934, as amended ("Section 16"), or for any other purpose.