Wallace Chiachang Kou
Wallace Chiachang Kou: President and CEO · Director at Silicon Motion. What Wallace Chiachang Kou 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.
Silicon Motion (SIMO)
Wallace Chiachang Kou holds 486,214 Silicon Motion shares (1.4% of the company), worth about $137.3M at the last price, according to the Form 3 of Mar 18, 2026.
- Shares held: 486,214 (1.4%), $137.3M — Held in their own name: 486,214 ADS.
Declarations
- Silicon Motion (SIMO) — Form 3 of Mar 18, 2026 (President and CEO); 486,214 shares after 0000898432-26-000244
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.