Bor-Zen Tien, VP at TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD (TSM), bought 1,000 shares at $73.06 ($73K) on 2026-08-03, disclosed to the SEC on 2026-08-04.
Open-market purchase of $73k 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.
Something here stands out, but not much.
| Filing → |
| TSM | BUY | 2026-08-10 | $4K | — | Filing → |
| TSM | BUY | 2026-07-30 | $74K | — | Filing → |
| TSM | BUY | 2026-07-23 | $301K | — | Filing → |