Che-Chia Wei bought $11k of TSM
Chairman and CEO at TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD. 149 shares at an average of $76.20, traded Sep 7, 2026, filed Sep 9, 2026.
Score components
- +25RoleCEO
- 0Trade size$11k at market
- -5Relative to holdingsUnder 1% of holdings (0.8%)
- 0Price contextNear the top of the 52-week range
- +15Cluster30 insiders buying within 14 days
- 0Repeat buyingFirst buy in 90 days
- 0Track recordToo few past buys to judge (0 with prices)
What happened after comparable buys
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001046179-26-000644, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Sep 7, 2026 | POpen-market purchase Common Shares (2330.TW)indirect: By ESPP Trust | +149 | $76.20 | $11k | 18,136 | 33 d ago |
Related signals
Other insiders at TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 30Weak | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | Min Cao VP | $4,049 51 shares | +1% | |
| 45Moderate | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | Tzonz-Sheng Chang SVP | $4,049 51 shares | +5100% | |
| 38Weak | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | Chih-Ho Chen Controller | $2,461 31 shares | +15% | |
| 35Weak | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | Pei-Hung Chen VP | $3,414 43 shares | +3% | |
| 35Weak | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | Yung-Pei Chin EVP and Co-COO | $5,319 67 shares | +1% | |
| 45Moderate | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | Juiping Chuang VP | $3,652 46 shares | +2300% | |
| 45Moderate | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | Tzu-Sou Chuang VP | $3,652 46 shares | +4600% | |
| 30Weak | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | Shu-Hua Fang SVP and GC | $4,208 53 shares | +1% | |
| 45Moderate | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | Jun He VP | $3,414 43 shares | +2150% | |
| 48Moderate | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | Yung-Chin Hou SVP and Deputy Co-COO | $4,763 60 shares | - |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.