Insider Profile · SEC Form 4 Activity · Trailing 90 Days
Chuang Tzu-sou
Over the trailing 90 days, Chuang Tzu-sou (Other Officer at TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD) traded $14.0M of stock (net selling $14.0M) in TSM, per 6 SEC Form 4 transactions.
- Role
- Other Officer
- Companies
- TSM
- Window
- Trailing 90 days · 6 transactions · CIK 2114030
- Net activity
- −$14.0M ($10K bought · $14.0M sold)
By Company (Trailing 90 Days)
| Symbol | Company | Txns | Bought | Sold | Net |
|---|---|---|---|---|---|
| TSM | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | 6 | $10K | $14.0M | −$14.0M |
Transactions (6)
| Date | Symbol | Type | Shares | Value | Description |
|---|---|---|---|---|---|
| 2026-07-07 | TSM | Buy | 45 | $3K | Open market or private purchase |
| 2026-06-24 | TSM | Sell | 500.0K | $0 | Gift (bona fide) |
| 2026-06-08 | TSM | Sell | 500.0K | $0 | Gift (bona fide) |
| 2026-06-05 | TSM | Buy | 46 | $3K | Open market or private purchase |
| 2026-05-19 | TSM | Sell | 200.0K | $14.0M | Open market or private sale |
| 2026-05-08 | TSM | Buy | 48 | $3K | Open market or private purchase |
Activity shown covers the trailing 90 days of SEC Form 4 filings. "Buy" and "sell" follow the SEC acquired/disposed codes and include compensation events (grants, option exercises, tax withholding) unless noted. Historical fact, not investment advice.
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