Tzu-Sou Chuang is VP at TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD (TSM). They have made 8 open-market trades across 1 company since 2026, most recently 2026-10-07.
CIK 0002114030
7 open-market purchases totalling $24K since 2026, against 1 sale. Across 6 scored buys the stock is up 3.1% at thirty days, and 1.0 points ahead of the S&P over the same stretch.
6 scored purchases · one row per filing · discretionary only
| Ticker | Shares | Value |
|---|---|---|
| TSM | 47 | $19K |
Shares reported on the most recent Form 4, priced at the 2026-10-08 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 67% | 83% | — |
| Avg Move | +2.7% | +3.1% | — |
| Alpha | +1.8% | +1.0% | — |
| Scored | 6 | 6 | 4 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| TSM | BUY | 2026-10-07 | 2026-10-08 | $79.39 | $4K | — | — | — |
| TSM | BUY | 2026-09-07 | 2026-09-09 | $76.20 | $4K | +4.3% | +6.3% | — |
| TSM | BUY | 2026-08-07 | 2026-08-10 | $73.31 | $3K | -1.6% | +2.9% | — |
| TSM | BUY | 2026-07-07 | 2026-07-09 | $76.62 | $3K | -3.1% | -4.4% | +7.8% |
| TSM | BUY | 2026-06-05 | 2026-06-09 | $76.01 | $3K | +13.0% | +5.6% | +6.1% |
| TSM | SELL | 2026-05-19 | 2026-05-19 | $69.83 | $14.0M | +9.7% | +16.3% | +8.4% |
| TSM | BUY | 2026-05-08 | 2026-05-11 | $71.82 | $3K | +2.4% | +2.8% | +5.3% |
| TSM | BUY | 2026-04-09 | 2026-04-13 | $57.87 | $3K | +1.0% | +5.5% | +11.2% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.