Du-Tsuen Uang has sold ASX and made no open-market buys since Jun 2026

Du-Tsuen Uang is the Chief Administration Officer of ASE Technology Holding Co., Ltd. (NYSE: ASX), a leading global provider of semiconductor assembly and test services headquartered in Kaohsiung, Taiwan.( As a corporate insider under U.S. securities regulations, Uang plays a key executive role in the company’s administrative and governance functions and holds a significant equity stake in ASE Technology.( An initial Form 3 filing with the U.S. Securities and Exchange Commission reported his direct ownership of 788,000 ordinary shares of ASE Technology, establishing his baseline beneficial holding as an executive officer.(

Uang’s insider trading activity continues to be disclosed through periodic SEC filings. A Form 4 filed in early June 2026 reported that he sold 10,000 shares of ASE Technology on June 3, 2026, leaving him with a remaining direct holding of 778,000 shares in the company.( ASE Technology itself provides comprehensive semiconductor manufacturing solutions, including IC packaging, interconnect materials, engineering testing, wafer probing, final testing, and electronic manufacturing services, serving a global customer base from its operations centered in Taiwan.( Publicly available regulatory and market disclosures focus on Uang’s role and share ownership; detailed information on his earlier career history and formal education is not disclosed in these sources.(

Written by Perplexity from public sources.