InsiderTrades

Form 4 for AMKR AMKOR TECHNOLOGY, INC.

Accepted 2026-05-07 16:34:54 ET · period of report 2026-05-05 · accession 0001628280-26-032231 · 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
DM 2026-05-07 16:34 2026-05-05 AMKR ALEXANDER DOUGLAS A Dir M - OptEx $9.39 +5,000 29.5K +20% +$46.9K
DM 2026-05-07 16:34 2026-05-05 AMKR ALEXANDER DOUGLAS A Dir S - Sale+OE $76.58 -5,000 29.1K -15% -$382.9K
DM 2026-05-07 16:34 2026-05-05 AMKR ALEXANDER DOUGLAS A Dir M - OptEx $0.00 -5,000 19.7K -20% $0

Purchase Sale Sale after option exercise All abbreviations

Every reported transaction

#TableSecurityDateCodeA/DSharesPriceOwned afterOwnExercise / expiryUnderlyingFootnotes
1 Common Common Stock 2026-05-05 M A 4,657 $9.45 33,766 D — —
2 Common Common Stock 2026-05-05 S D 4,657 $76.58 29,109 D — —
3 Common Common Stock 2026-05-05 M A 343 $8.51 29,452 D — —
4 Common Common Stock 2026-05-05 S D 343 $76.58 29,109 D — —
5 Derivative Director Stock Option (Right-to-Buy) 2026-05-05 M D 4,657 $0.00 0 D $9.45 · 2018-05-01 to 2028-02-06 4,657 Common Stock (F1) This stock option to acquire 4,657 shares of Amkor Technology, Inc. ("the Issuer") Common Stock was granted on February 6, 2018, vested in full on May 1, 2018.
6 Derivative Director Stock Option (Right-to-Buy) 2026-05-05 M D 343 $0.00 19,657 D $8.51 · 2019-05-01 to 2028-05-01 343 Common Stock (F2) This stock option to acquire 20,000 shares of the Issuer's Common Stock was granted on May 1, 2018, vested in full on May 1, 2019.