Yu-Chih Chuang

Yu-Chih Chuang: Vice President at United Microelectronics. What Yu-Chih Chuang holds in an AI or semiconductor company tracked on Silicon Floor, from their SEC filings, broken down: the shares held and how, then any restricted shares, options or other rights declared.

United Microelectronics (UMC)

Yu-Chih Chuang holds 242,655 United Microelectronics shares (0.01% of the company), worth about $4.8M at the last price, according to the Form 3 of Apr 29, 2026.

• Shares held: 239,866 (0.01%), $4.7M — Held in their own name.
• Shares held: 2,789 (0.00%), $54,935.42 — Held through companies or funds.

Declarations

• United Microelectronics (UMC) — Form 3 of Apr 29, 2026 (Vice President); 242,655 shares after 0001193125-26-210149

Sources: SEC Schedules 13D and 13G (stakes above 5%, which count everything a person votes or can acquire within 60 days) and Forms 3, 4 and 5 (the shares a director, officer or 10% owner holds, filed within two business days of each trade). Values at the last price.

All holders · Who owns each AI company · All tracked companies · The AI market