Chuang Juiping 4

What Happened
Chuang Juiping, a Vice President at Taiwan Semiconductor Manufacturing Co. (TSM), purchased 51 American Depositary Shares (ADS) in an open-market transaction on May 8, 2026. The ADS were acquired at $71.82 each for a total reported purchase value of $3,663. Because each ADS represents five common shares (see footnote F1), the 51 ADS equal 255 underlying common shares. This was a purchase (a net acquisition), which many investors view as a more informative signal than routine sales.

Key Details

• Transaction date and price: May 8, 2026 — 51 ADS at $71.82 per ADS (Total = $3,663). (Footnote F3: price converted from NT$2,257.1777 at NT$31.429 = US$1.)
• ADS-to-common ratio: 1 ADS = 5 common shares (Footnote F1); 51 ADS = 255 common shares.
• Shares owned after transaction: Not specified in the provided filing excerpt.
• Other footnotes in the filing: F2/F4 relate to purchases under the issuer's Employee Stock Purchase Plan (ESPP); F5 relates to shares purchased by a trust under the issuer's Long-Term Incentive (LTI) Bonus Plan over which the filer has investment control. (These describe plan mechanics; they do not change that this reported row is a purchase.)
• Filing timeliness: Form filed May 11, 2026 for the May 8 trade; this appears to comply with the SEC’s two-business-day Form 4 filing requirement.

Context
This report documents a straightforward open-market purchase of ADS by a company vice president. Purchases by insiders are often noted by retail investors because they represent the insider acquiring exposure to the company; filings and footnotes here mainly clarify the ADS/common-share ratio and the FX conversion used to report the dollar price.