Chue-San Yoo
Chue-San Yoo: VP at TSMC. What Chue-San Yoo 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)
Chue-San Yoo holds 578,270 TSMC shares (0.01% of the company), worth about $281.2M at the last price, according to the Form 4 of Sep 7, 2026.
- Shares held: 361,158 (0.01%), $175.6M — Held in their own name.
- Shares held: 170,382 (0.00%), $82.9M — Held through companies or funds (By Yuding Investment Co., Ltd.).
- Shares held: 43,985 (0.00%), $21.4M — Held by a spouse or a family member (By Spouse).
- Shares held: 2,746 (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 53 at $76.20; 578,270 shares after 0001046179-26-000655
- TSMC (TSM) — Form 4 of Sep 1, 2026 (VP): grant or award of 8,175; 578,260 shares after 0001046179-26-000593
- TSMC (TSM) — Form 4 of Aug 7, 2026 (VP): open-market purchase of 51 at $73.31; 576,625 shares after 0001046179-26-000529
- TSMC (TSM) — Form 4 of Jul 7, 2026 (VP): open-market purchase of 51 at $76.62; 576,614 shares after 0001046179-26-000416
- TSMC (TSM) — Form 4 of Jun 5, 2026 (VP): open-market purchase of 53 at $76.01; 576,604 shares after 0001046179-26-000361
- TSMC (TSM) — Form 4 of May 8, 2026 (VP): open-market purchase of 55 at $71.82; 576,594 shares after 0001046179-26-000269
- TSMC (TSM) — Form 4 of Apr 9, 2026 (VP): open-market purchase of 65 at $57.87; 576,583 shares after 0001046179-26-000197
- TSMC (TSM) — Form 3 of Mar 18, 2026 (VP); 576,570 shares after 0001046179-26-000097
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.