Form 4 Filing for Uang Du-Tsuen

This filing details transactions made by Uang Du-Tsuen, Chief Administration Officer of ASE Technology Holding Co., Ltd. (ASX). On June 30, 2026, Du-Tsuen disposed of 3,000 ordinary shares at $664.00 per share, followed by another disposal of 2,000 ordinary shares at $687.00 per share on the same day. On July 1, 2026, an additional 3,000 ordinary shares were disposed of at $709.00 per share. These transactions were all direct holdings. Following these disposals, the post-transaction number of shares owned by Du-Tsuen decreased sequentially from 764,000 to 762,000 and finally to 759,000 shares.