Insider · CIK 0002113710
Tzonz-Sheng Chang
Files at TSM (TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD). First filing Apr 13, 2026, latest Oct 8, 2026.
Tzonz-Sheng Chang files SEC Form 4 as officer at TSM (TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD). Since Apr 13, 2026, Tzonz-Sheng Chang has reported 5 open-market buys worth $20k and 0 open-market sells worth $0, the latest filed on Oct 8, 2026.
A track record needs three past buys with six months of prices behind them; Tzonz-Sheng Chang has 0, so none is measured yet.
The newest scored trade: bought $4,049 of TSM on Oct 7, 2026, filed Oct 8, 2026, scored 45 (moderate). In the last 12 months: 5 buys worth $20k and 0 sells worth $0.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
TSM: TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 45Moderate | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | $4,049 51 shares | +5100% | +73% from low-3% from high | |
| 25Weak | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | $4,039 53 shares | +1% | +84% from low-10% from high | |
| 35Weak | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | $4,029 53 shares | +1% | +107% from low-7% from high | |
| 35Weak | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | $4,022 56 shares | +1% | +138% from low-2% from high | |
| 30Weak | TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | $3,877 67 shares | +1% | +150% from low-5% from high |
Transactions
Every row this insider has filed, 6 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Oct 7, 2026 | TSM TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | POpen-market purchase Common Shares (2330.TW)indirect: By ESPP Trust | +51 | $79.39 | $4,049 | 52 | 5 d ago |
| Sep 7, 2026 | TSM TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | POpen-market purchase Common Shares (2330.TW)indirect: By ESPP Trust | +53 | $76.20 | $4,039 | 5,481 | 34 d ago |
| Sep 1, 2026 | TSM TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | AGrant or award Common Shares (2330.TW) | +12,881 | $0.00 | $0 | 157,519 | 41 d ago |
| Jun 5, 2026 | TSM TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | POpen-market purchase Common Shares (2330.TW)indirect: By ESPP Trust | +53 | $76.01 | $4,029 | 5,322 | Jun 9, 2026 |
| May 8, 2026 | TSM TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | POpen-market purchase Common Shares (2330.TW)indirect: By ESPP Trust | +56 | $71.82 | $4,022 | 5,269 | May 11, 2026 |
| Apr 9, 2026 | TSM TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD | POpen-market purchase Common Shares (2330.TW)indirect: By ESPP Trust | +67 | $57.87 | $3,877 | 5,213 | Apr 13, 2026 |
Questions about Tzonz-Sheng Chang
Answered from the filings on this page, as of the latest one.
Is Tzonz-Sheng Chang buying or selling?
In the last 12 months Tzonz-Sheng Chang reported 5 open-market buys worth $20k and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $4,049 of TSM on Oct 7, 2026. Grants, option exercises and tax withholding are not counted.
How did Tzonz-Sheng Chang's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Tzonz-Sheng Chang has 0.
Where does Tzonz-Sheng Chang file Form 4?
Tzonz-Sheng Chang has filed Form 4 at TSM (TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD) as SVP. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
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.