TSMC Vice President Yoo Chue-San Acquires Shares via ESPP

Executive Summary

On October 8, 2026, Taiwan Semiconductor Manufacturing Co. Ltd. (TSM) filed a Form 4 report disclosing that Vice President Yoo Chue-San acquired 50 Common Shares on October 7, 2026. The shares were purchased through the company's Employee Stock Purchase Plan (ESPP) at an average translated price of $79.39 per share (NT$2,524.23 converted at NT$31.795 to US$1), totaling approximately $3,969.50.

Transaction & Holdings Breakdown

• Transaction: Open market purchase under an automated ESPP structure.
• Direct Holdings: Yoo Chue-San directly holds 1,805,789 Common Shares.
• Indirect Holdings Post-Transaction:
  • ESPP Trust: 6,744 shares
  • LTI Trust: 7,036 shares
  • By Spouse: 219,924 shares
  • By Yuding Investment Co., Ltd.: 851,908 shares

Market & Strategic Context

This transaction reflects routine participation in TSMC's pre-arranged employee stock ownership program rather than a discretionary market purchase. Given the nominal transaction size (50 shares) against the insider's total beneficial ownership exceeding 2.88 million shares, this filing carries minimal trading significance.