Form 4 Filing for Susan Y. Kim - Amkor Technology, Inc.

Susan Y. Kim, a director and 10% owner of Amkor Technology, Inc. (AMKR), reported a transaction on April 7, 2026. She acquired 20,000 shares of Common Stock at a price of $5.66 per share. Following this transaction, her direct post-transaction shares amount to 6,110,494. The filing also details various indirect holdings through trusts and limited partnerships, including 3,713,610 shares held by trusts (excluding GRATs), 7,912,594 shares held by GRATs, and significant holdings through Sujochil, LP (19,484,809 shares) and Sujoda Investments, LP (3,789,479 shares). Additionally, a stock option for 20,000 shares, granted on May 4, 2016, and vested on May 2, 2017, was disposed of on April 7, 2026, with an exercise price of $5.66.