Chuang Tzu-Sou insider trades
Chuang Tzu-Sou has filed 10 Form 4s with the SEC that we hold, all for Taiwan Semiconductor Manufacturing Co LTD (TSM), as VP. Across all of them we count 7 purchases worth $24.4K and 1 sale worth $14.0M reported on Form 4. In the last 12 months: 7 purchases ($24.4K) and 1 sale ($14.0M). The largest single trade was a sale of 200,000 shares of Taiwan Semiconductor Manufacturing Co LTD worth $14.0M, dated 2026-05-19. The first filing on our record is dated 2026-04-13 and the latest 2026-10-08.
Taiwan Semiconductor Manufacturing Co LTD (TSM)
| Trade date | Code | Shares | Value as filed | Filed |
|---|---|---|---|---|
| 2026-04-09 | P, purchase reported on Form 4 | 58 | $3.4K | 2026-04-13 |
| 2026-05-08 | P, purchase reported on Form 4 | 48 | $3.4K | 2026-05-11 |
| 2026-05-19 | S, sale reported on Form 4 | 200,000 | $14.0M | 2026-05-19 |
| 2026-06-05 | P, purchase reported on Form 4 | 46 | $3.5K | 2026-06-09 |
| 2026-07-07 | P, purchase reported on Form 4 | 45 | $3.4K | 2026-07-09 |
| 2026-08-07 | P, purchase reported on Form 4 | 47 | $3.4K | 2026-08-10 |
| 2026-09-07 | P, purchase reported on Form 4 | 47 | $3.6K | 2026-09-09 |
| 2026-10-07 | P, purchase reported on Form 4 | 46 | $3.7K | 2026-10-08 |
Counted from the Form 4 filings this reporting owner (SEC CIK 2114030) filed on EDGAR. Values are the transaction values as filed. See every filing on EDGAR, or browse insider buying and today's insider purchases.
Source: U.S. Securities and Exchange Commission (EDGAR) and other official
government data · Updated 2026-10-12 ·
For informational purposes only, not investment advice.
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