Chuang Tzu-Sou 4
4 · TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD · Filed May 11, 2026
Research Summary
AI-generated summary of this filing
TSMC (TSM) VP Chuang Tzu-Sou Buys 48 Shares
What Happened
Chuang Tzu-Sou, a Vice President at Taiwan Semiconductor Manufacturing Co. Ltd. (TSMC/TSM), purchased 48 common shares on 2026-05-08 for an aggregate $3,447 (average price $71.82 per share). The shares were acquired through the issuer's Employee Stock Purchase Plan (ESPP) rather than a direct open-market trade—this is a purchase (a routine insider buy through a company plan).
Key Details
- Transaction date and type: 2026-05-08 — Purchase (Code: P) via ESPP.
- Price: $71.82 per share (translated from NT$2,257.1777 at NT$31.429 = US$1), total value $3,447. (Footnote F2)
- How acquired/held: Shares purchased by the ESPP administrator on the filer’s behalf and held under the ESPP. (Footnotes F1, F3)
- Shares owned after transaction: Not specified in the filing.
- Filing timeliness: Report filed 2026-05-11 for a 2026-05-08 transaction — filed within the SEC’s two-business-day window (timely).
Context
ESPP purchases are common, payroll-driven purchases made under plan terms (often at predetermined intervals or discounts) and do not necessarily indicate ad hoc trading decisions. This filing documents a small-dollar, plan-based purchase rather than a large discretionary insider buy.
Insider Transaction Report
- Purchase
Common Shares (2330.TW)
[F1][F2][F3]2026-05-08$71.82/sh+48$3,447→ 5,668 total(indirect: By Trust)
- 2,695,165
Common Shares (2330.TW)
- 7,036(indirect: By Trust)
Common Shares (2330.TW)
[F4]
Footnotes (4)
- [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]The price was translated from the average purchase price of NT$2,257.1777 in New Taiwan dollars, at the rate of NT$31.429 to US$1.
- [F3]Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("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.