Public disclosures
Page built 2026-09-29
Data as of 2026-09-29
Search

Che-Chia Wei: insider trades

Every open market trade Che-Chia Wei 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

  • Che-Chia Wei is listed as Chairman and CEO at TSM.
  • Between 2026-04-13 (13 April 2026) and 2026-09-09 (9 September 2026) Che-Chia Wei filed 5 open market buys worth $55.9K and 0 open market sales worth $0.
  • Across 2 scored buys, Che-Chia Wei averaged +2.4% against the S&P 500 (SPY) over the 90 days after disclosure, with 100% of them ahead of the index. That result is too few trades to draw a conclusion.
  • Data as of 2026-09-29 (29 September 2026).
Open market buys 5 $55.9K
Open market sales 0 $0
Avg vs S&P, 90d +2.4% 2 scored buys
Beat the S&P 100% 90 days after entry

Would copying Che-Chia Wei have paid?

prices as of 2026-09-28

The result. Across 2 scored buys, Che-Chia Wei averaged +2.4% against the S&P 500 (SPY) over the 90 days after disclosure, with 100% of them ahead of the index. That result is too few trades to draw a conclusion.

Average return of Che-Chia Wei's open market buys against the S&P 500.
Days after entryScored buysAvg vs S&PBeat S&PEntry monthst statisticReading
30 days 4 +0.4% 75% 4 n/a too few trades to draw a conclusion
90 days 2 +2.4% 100% 2 n/a too few trades to draw a conclusion
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. Che-Chia Wei does not have enough yet.

Stocks traded

  1. TSM5 trades, $55.9K

Every open market trade

as of 2026-09-29
5 trades.
Open market trades filed by Che-Chia Wei, newest first.
FiledStockTypeSharesPriceValue90 day vs S&P
9 Sep 2026 TSM buy 149 $76.20 $11.4K n/a
10 Aug 2026 TSM buy 152 $73.31 $11.1K n/a
9 Jul 2026 TSM buy 146 $76.62 $11.2K n/a
9 Jun 2026 TSM buy 150 $76.01 $11.4K +1.8%
13 Apr 2026 TSM buy 186 $57.87 $10.8K +3.1%

Insider sales are shown but not scored, because they are often planned for tax or diversification reasons.

Frequently asked questions

What has Che-Chia Wei bought and sold?

Between 2026-04-13 (13 April 2026) and 2026-09-09 (9 September 2026) Che-Chia Wei filed 5 open market buys worth $55.9K and 0 open market sales worth $0.

Did Che-Chia Wei's buys beat the market?

Across 2 scored buys, Che-Chia Wei averaged +2.4% against the S&P 500 (SPY) over the 90 days after disclosure, with 100% of them ahead of the index. That result is too few trades to draw a conclusion. 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.