Bor-Zen Tien, VP at TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD (TSM), bought 15 shares at $390.00 ($6K) on 2026-07-28, disclosed to the SEC on 2026-07-30.
Open-market purchase of $6k TSM by VP. Below the thresholds we flag for high-conviction alerts (no C-suite role, rare reversal, cluster, or A-grade history). Context: insider career grade B.
Clearly above the average filing.
| # | Price | Shares | Value | % of Total |
|---|---|---|---|---|
| 1 | $390.00 | 5 | $2K | 33.3% |
| 2 | $390.00 | 10 | $4K | 66.7% |
| Total | $390.00 avg | 15 | $6K | 100% |
| Filing → |
| TSM | BUY | 2026-08-10 | $4K | — | Filing → |
| TSM | BUY | 2026-08-04 | $73K | — | Filing → |
| TSM | BUY | 2026-07-23 | $301K | — | Filing → |