Insider Transaction Report for Gil C. Tily

This filing details a transaction by Gil C. Tily, a director at AMKOR TECHNOLOGY, INC. (AMKR). On May 11, 2026, Mr. Tily disposed of 15,000 shares of Common Stock at a price of $77.30 per share. Following this transaction, Mr. Tily directly owns 108,806 shares of the company's stock. The transaction was reported on May 13, 2026, with Mark N. Rogers acting as Attorney-in-Fact for Mr. Tily.