TSMC VP Tien Bor-Zen Acquires Shares via Employee Stock Purchase Plan
TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD
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Filing Summary
# Insider Trade Alert: TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD (TSM)
**Insider:** Tien Bor-Zen (VP)
**Transaction:** Purchase (ESPP)
**Date:** 2026-09-07
**Shares:** 48 shares across accounts @ $76.20
**Total Value:** ~$3,657.60
**Significance:** Low (Routine ESPP contribution)
Comprehensive Analysis
Executive Summary
On September 9, 2026, Taiwan Semiconductor Manufacturing Co. Ltd. (NYSE: TSM) filed a Form 4 disclosing purchases of Common Shares by Vice President Bor-Zen Tien on September 7, 2026. The reported transactions total 48 shares acquired through the company's Employee Stock Purchase Plan (ESPP) at an average translated price of $76.20 per share (NT$2,404.3453 translated at NT$31.552 per US$1).
Transaction Breakdown
- ESPP Trust Purchase: 43 Common Shares acquired at $76.20 per share, bringing indirect holdings via ESPP Trust to 313 shares.
- Immediate Family Member ESPP Purchase: 5 Common Shares acquired at $76.20 per share by an immediate family member who is also a TSMC employee, bringing their indirect holdings to 85 shares.
- Total Transaction Value: $3,657.60.
Ownership Overview
Following these transactions, Bor-Zen Tien holds:
- 14,051 Common Shares directly.
- 132 American Depositary Shares (ADS) directly (representing 660 Common Shares).
- 5,000 Common Shares indirectly via spouse.
- 313 Common Shares indirectly via ESPP Trust.
- 85 Common Shares indirectly via immediate family member.
Market Impact & Significance
This filing reflects routine, automated acquisitions executed under the company's employee stock purchase program rather than open-market discretionary trading. Given the small dollar value and programmatic nature of ESPP contributions, the trading significance is rated Low.
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