InsiderTrades

Form 4 for AMKR AMKOR TECHNOLOGY, INC.

Accepted 2026-01-20 00:00:00 ET · period of report 2026-01-15 · accession 0001628280-26-002639 · 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
2026-01-20 2026-01-15 AMKR Rutten Guillaume Marie Jean Dir S - Sale $53.14 -10.0K 335.4K -3% -$531.4K

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-01-15 S D 10,000 $53.14 335,391 D — — (F2) The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $52.25 to $54.00. The Reporting Person hereby undertakes to provide, upon request, to the staff of the Securities and Exchange Commission, Amkor Technology, Inc. (the "Issuer"), or any security holder of the Issuer, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (2) to this Form 4.