Form 4 Filing for Winston J. Churchill

Winston J. Churchill, a director at AMKOR TECHNOLOGY, INC. (AMKR), reported transactions on June 12, 2026. He acquired 5,000 shares of Common Stock at a price of $19.39 per share, increasing his post-transaction holdings to 33,781 shares. Subsequently, he disposed of 5,000 shares of Common Stock at $78.20 per share, resulting in 28,781 shares remaining. Additionally, Churchill exercised a stock option for 5,000 shares of Common Stock with an exercise price of $19.39, which was granted on May 18, 2021, and vested in full on May 17, 2022. Following this exercise, his post-transaction shares related to this option amounted to 10,000.