Form 4 Filing for ASE Technology Holding Co., Ltd.

On September 22, 2026, Hung Pen Chang, a director at ASE Technology Holding Co., Ltd. (ASX), acquired 300,000 ordinary shares at a price of 98.6 New Taiwan dollars per share. This transaction increases his direct ownership of ordinary shares to 4,800,000. In a separate transaction on the same date, Mr. Chang exercised a stock option to purchase 300,000 ordinary shares. The exercise price for these options is 98.6 New Taiwan dollars, as indicated by footnote F1. The options were granted on August 18, 2023, and vest in installments through August 18, 2028, with 40% having vested by August 18, 2025, and an additional 10% vesting on February 18, 2026. Following these transactions, Mr. Chang