Tzu-Sou Chuang
Tzu-Sou Chuang: VP at TSMC. What Tzu-Sou 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.
TSMC (TSM)
Tzu-Sou Chuang holds 303,246 TSMC shares (0.01% of the company), worth about $147.5M at the last price, according to the Form 4 of Sep 7, 2026.
- Shares held: 300,668 (0.01%), $146.2M — Held in their own name.
- Shares held: 2,578 (0.00%), $1.3M — Held through trusts (By ESPP Trust, By LTI Trust).
Declarations
- TSMC (TSM) — Form 4 of Sep 7, 2026 (VP): open-market purchase of 47 at $76.20; 303,246 shares after 0001046179-26-000612
- TSMC (TSM) — Form 4 of Sep 1, 2026 (VP): grant or award of 8,175; 303,236 shares after 0001046179-26-000579
- TSMC (TSM) — Form 4 of Aug 7, 2026 (VP): open-market purchase of 47 at $73.31; 301,601 shares after 0001046179-26-000492
- TSMC (TSM) — Form 4 of Jul 7, 2026 (VP): open-market purchase of 45 at $76.62; 301,592 shares after 0001046179-26-000420
- TSMC (TSM) — Form 4 of Jun 24, 2026 (VP): gift of 500,000; 301,583 shares after 0001046179-26-000375
- TSMC (TSM) — Form 4 of Jun 8, 2026 (VP): gift of 500,000; open-market purchase of 46 at $76.01; 401,583 shares after 0001046179-26-000341
- TSMC (TSM) — Form 4 of May 19, 2026 (VP): open-market sale of 200,000 at $69.83; 501,574 shares after 0001046179-26-000286
- TSMC (TSM) — Form 4 of May 8, 2026 (VP): open-market purchase of 48 at $71.82; 541,574 shares after 0001046179-26-000233
- TSMC (TSM) — Form 4 of Apr 9, 2026 (VP): open-market purchase of 58 at $57.87; 541,564 shares after 0001046179-26-000155
- TSMC (TSM) — Form 3 of Mar 18, 2026 (VP); 541,553 shares after 0001046179-26-000088
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.