Syun-Ming Jang: insider trades
Every open market trade Syun-Ming Jang has filed with the SEC, when each filing appeared, and how the buys did against the S&P 500 once the filing was public.
Key Facts
- Syun-Ming Jang is listed as VP at TSM.
- Between 2026-07-09 (9 July 2026) and 2026-09-09 (9 September 2026) Syun-Ming Jang filed 3 open market buys worth $11.0K and 0 open market sales worth $0.
- None of Syun-Ming Jang's buys has matured 90 days yet, so there is no return to report.
- Data as of 2026-09-29 (29 September 2026).
Would copying Syun-Ming Jang have paid?
prices as of 2026-09-28The result. None of Syun-Ming Jang's buys has matured 90 days yet, so there is no return to report.
| Days after entry | Scored buys | Avg vs S&P | Beat S&P | Entry months | t statistic | Reading |
|---|---|---|---|---|---|---|
| 30 days | 2 | -1.3% | 50% | 2 | n/a | too few trades to draw a conclusion |
| 90 days | 0 | n/a | n/a | n/a | n/a | too few trades to tell |
| 180 days | 0 | n/a | n/a | n/a | n/a | too few trades to tell |
A return curve needs at least 10 scored buys. Syun-Ming Jang does not have enough yet.
Stocks traded
Every open market trade
as of 2026-09-29| Filed | Stock | Type | Shares | Price | Value | 90 day vs S&P |
|---|---|---|---|---|---|---|
| 9 Sep 2026 | TSM | buy | 49 | $76.20 | $3.7K | n/a |
| 10 Aug 2026 | TSM | buy | 50 | $73.31 | $3.7K | n/a |
| 9 Jul 2026 | TSM | buy | 47 | $76.62 | $3.6K | n/a |
Nothing matches that search.
Insider sales are shown but not scored, because they are often planned for tax or diversification reasons.
Related pages
Frequently asked questions
What has Syun-Ming Jang bought and sold?
Between 2026-07-09 (9 July 2026) and 2026-09-09 (9 September 2026) Syun-Ming Jang filed 3 open market buys worth $11.0K and 0 open market sales worth $0.
Did Syun-Ming Jang's buys beat the market?
None of Syun-Ming Jang's buys has matured 90 days yet, so there is no return to report. Insider sales are not scored because they are often planned for tax or diversification reasons.
Sources: Insider trades: SEC Form 4 filings, collected from Finviz. Prices: Yahoo Finance daily adjusted closes. Data as of 2026-09-29 (29 September 2026). About these sources.
Not investment advice. Past disclosed trades do not predict future returns. Disclosures are published late, so the trades shown are ones you could only have copied after the fact. Talk to a licensed adviser before you invest.