TSM: chairman and CEO Wei Che-Chia bought 144 shares

What happened Wei Che-Chia, chairman and CEO, purchased 144 common shares on Oct 7, 2026, at $79.39 per share, for a total of $11,432, according to the Form 4 filed Oct 8, 2026.

Key details

• Transaction date and price: Oct 7, 2026 — purchase (code P) of 144 shares at $79.39 per share.
• Filing date: Oct 8, 2026.
• Shares owned after the transaction: not stated in the filing.
• Footnotes in the filing:
  • F1: Common Shares purchased by the administrator of the issuer's Employee Stock Purchase Plan (ESPP) on behalf of the filer pursuant to terms predetermined by the issuer.
  • F2: Price translated from the average purchase price of NT$2,524.2277 in New Taiwan dollars, at the rate of NT$31.795 to US$1.
  • F3: Common Shares purchased and held under the issuer's ESPP.
  • F4: Represents Common Shares purchased by a trust with cash received under the issuer's Long-Term Incentive (LTI) Bonus Plan, over which the filer has obtained investment control.

Why it may matter

• The filing shows a purchase executed through the issuer's ESPP arrangements and includes a price translation from New Taiwan dollars.
• A filing does not show why the insider traded or why the company acted.