X0609 4 2026-10-13 0 0001047127 AMKOR TECHNOLOGY, INC. AMKR 0001684564 Faust Megan false 2045 E INNOVATION CIRCLE TEMPE AZ 85284 0 1 0 0 CFO 1 Common Stock 2026-10-13 4 S 0 1000 46.92 D 133105 D 1. The sale reported in the Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 17, 2026. /s/ Mark N. Rogers, Attorney-in-Fact for Megan Faust 2026-10-15