Bor-Zen Tien
Bor-Zen Tien: VP at TSMC. What Bor-Zen Tien 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)
Bor-Zen Tien holds 4,031 TSMC shares (0.00% of the company), worth about $1.7M at the last price, according to the Form 4 of Oct 7, 2026.
- Shares held: 2,942 (0.00%), $1.3M — Held in their own name: 2,810 common, 132 ADS.
- Shares held: 1,018 (0.00%), $433,023.68 — Held by a spouse or a family member (By Spouse, By Immediate Family Member).
- Shares held: 71 (0.00%), $30,019.12 — Held through trusts (By ESPP Trust).
Declarations
- TSMC (TSM) — Form 4 of Oct 7, 2026 (VP): open-market purchase of 40 at $79.39; open-market purchase of 7 at $79.39; 4,031 shares after 0001046179-26-000708
- TSMC (TSM) — Form 4 of Sep 7, 2026 (VP): open-market purchase of 43 at $76.20; open-market purchase of 5 at $76.20; 4,022 shares after 0001046179-26-000643
- TSMC (TSM) — Form 4 of Aug 7, 2026 (VP): open-market purchase of 42 at $73.31; open-market purchase of 7 at $73.31; 4,012 shares after 0001046179-26-000519
- TSMC (TSM) — Form 4 of Aug 3, 2026 (VP): open-market purchase of 1,000 at $73.06; 4,002 shares after 0001046179-26-000465
- TSMC (TSM) — Form 4 of Jul 28, 2026 (VP): open-market purchase of 10 at $390.00; open-market purchase of 5 at $390.00; 3,802 shares after 0001046179-26-000461
- TSMC (TSM) — Form 4 of Jul 21, 2026 (VP): open-market purchase of 1,000 at $74.13; open-market purchase of 10 at $405.00; 3,587 shares after 0001046179-26-000457
- TSMC (TSM) — Form 4 of Jul 7, 2026 (VP): open-market purchase of 40 at $76.62; open-market purchase of 6 at $76.62; 2,777 shares after 0001046179-26-000435
- TSMC (TSM) — Form 4 of Jun 30, 2026 (VP): open-market purchase of 1,000 at $76.64; open-market purchase of 1,000 at $75.70; 2,568 shares after 0001046179-26-000379
- TSMC (TSM) — Form 4 of Jun 5, 2026 (VP): open-market purchase of 43 at $76.01; open-market purchase of 7 at $76.01; 2,368 shares after 0001046179-26-000356
- TSMC (TSM) — Form 4 of May 20, 2026 (VP): open-market purchase of 10 at $391.81; open-market purchase of 7 at $400.00; 2,358 shares after 0001046179-26-000288
- TSMC (TSM) — Form 4 of May 19, 2026 (VP): open-market purchase of 1,000 at $69.98; open-market purchase of 1,000 at $69.83; 2,341 shares after 0001046179-26-000285
- TSMC (TSM) — Form 4 of May 8, 2026 (VP): open-market purchase of 44 at $71.82; open-market purchase of 7 at $71.82; 1,941 shares after 0001046179-26-000263
- TSMC (TSM) — Form 4 of Apr 28, 2026 (VP): open-market purchase of 10 at $386.00; open-market purchase of 5 at $390.00; 1,931 shares after 0001046179-26-000209
- TSMC (TSM) — Form 4 of Apr 24, 2026 (VP); 1,891 shares after 0001046179-26-000207
- TSMC (TSM) — Form 4 of Apr 9, 2026 (VP): open-market purchase of 53 at $57.87; open-market purchase of 9 at $57.87; 1,911 shares after 0001046179-26-000191
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.
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