Tien Bor-Zen 4

What Happened
Tien Bor‑Zen, a Vice President at Taiwan Semiconductor Manufacturing Co. (TSMC/TSM), made multiple purchases (transaction code P) on July 20–21, 2026. The filings show five open‑market acquisitions: 1,000 shares @ $74.13 ($74,130), 10 shares @ $405.00 ($4,050), 1,000 shares @ $73.98 ($73,980), 1,000 shares @ $74.44 ($74,440), and 1,000 shares @ $74.75 ($74,750) — totaling 4,010 shares/ADS and about $301,350. Purchases are generally viewed as a bullish signal (insiders buying), though filings do not state motive.

Key Details

• Transaction dates and prices: 2026-07-20 (10 @ $405.00); 2026-07-21 (1,000 @ $74.13; 1,000 @ $73.98; 1,000 @ $74.44; 1,000 @ $74.75). All are coded P = Purchase.
• Total value: approximately $301,350 across the five trades.
• Shares owned after transaction: not specified in the provided filing details.
• Footnotes: filing notes several prices were translated from New Taiwan dollars (NT$) at NT$32.375 = US$1; one note states each American Depositary Share (ADS) represents 5 common shares; another indicates some shares were purchased under the issuer’s Employee Stock Purchase Plan (ESPP).
• Timeliness: Report filed 2026-07-23 for a 2026-07-21 transaction — appears to be filed within the usual two‑business‑day window (not marked late).

Context
These are straight purchases (no option exercises or awards). The presence of ADS and NTD translations means some entries reflect purchases of ADS or shares priced in Taiwan dollars; footnotes clarify conversion and the ADS:common share ratio. Purchases by company officers can be informative to retail investors, but filings do not reveal the insider’s intent.