TSM Insider Tien Bor-Zen Reports Change in Ownership

TL;DR

**TSM insider Tien Bor-Zen filed a Form 4, signaling a change in their stock holdings.**

AI Summary

This Form 4 filing, submitted on March 24, 2026, indicates a change in beneficial ownership for Tien Bor-Zen, an insider at Taiwan Semiconductor Manufacturing Co Ltd (TSM). While the filing itself doesn't detail the specific transaction (buy/sell), it signals that an insider's holdings have changed as of the report period ending March 22, 2026. This matters to investors because insider activity can sometimes signal management's confidence (or lack thereof) in the company's future prospects, potentially influencing stock price.

Why It Matters

Insider transaction filings like this can provide clues about how company executives view their own stock, which can be a valuable data point for investors.

Risk Assessment

Risk Level: low — This filing is purely informational and does not inherently pose a direct risk, but rather provides data for investor analysis.

Analyst Insight

A smart investor would look for the detailed transaction information within the full Form 4 document to determine if Tien Bor-Zen bought or sold shares, the quantity, and the price, as this context is crucial for interpreting the significance of the filing.

Key Players & Entities

• Tien Bor-Zen (person) — Reporting Person (insider)
• Taiwan Semiconductor Manufacturing Co Ltd (company) — Issuer of securities (TSM)
• 0002114023 (person) — CIK for Tien Bor-Zen
• 0001046179 (company) — CIK for Taiwan Semiconductor Manufacturing Co Ltd

FAQ

Key Financial Figures

• $1,795 — s translated from New Taiwan dollars, NT$1,795, at the rate of NT$32.092 to US$1. 2.
• $32.092 — wan dollars, NT$1,795, at the rate of NT$32.092 to US$1. 2. Each American Depositary S
• $1 — NT$1,795, at the rate of NT$32.092 to US$1. 2. Each American Depositary Share rep
• $20,000 — The principal amount of the notes is US$20,000. The notes are exercisable and expire o
• $278.8973 — es of the issuer at a strike price of US$278.8973 per American Depositary Share. In addit

Filing Documents

• wk-form4_1774346459.html (4)
• wk-form4_1774346459.xml (4) — 9KB
• 0001046179-26-000122.txt ( ) — 10KB

From the Filing

SEC FORM 4 SEC Form 4 FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940 OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5    Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).    Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10. 1. Name and Address of Reporting Person * Tien Bor-Zen (Last) (First) (Middle) NO. 8, LI-HSIN ROAD 6 HSINCHU SCIENCE PARK (Street) HSINCHU TAIWAN 300096 (City) (State) (Zip) TAIWAN (Country) 2. Issuer Name and Ticker or Trading Symbol TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD [ TSM ] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) VP 2a. Foreign Trading Symbol [ 2330.TW ] 3. Date of Earliest Transaction (Month/Day/Year) 03/22/2026 6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person 4. If Amendment, Date of Original Filed (Month/Day/Year) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Shares (2330.TW) 03/22/2026 P 1,000 A $ 55.93 (1) 9,051 D American Depositary Shares (TSM) (2) 70 D Common Shares (2330.TW) 48 (3) I By ESPP Trust Common Shares (2330.TW) 44 I By Immediate Family Member Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Equity Linked Notes (4) (5) (4) (5) 06/03/2026 American Depositary Shares (TSM) (2) (4) (5) 71 (4) (5) 20,000 (4) (5) D Explanation of Responses: 1. The price was translated from New Taiwan dollars, NT$1,795, at the rate of NT$32.092 to US$1. 2. Each American Depositary Share represents five (5) Common Shares. 3. Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP"). 4. The Equity Linked Notes are issued by Goldman Sachs International that reference a basket of equity securities that includes the issuer's American Depositary Shares. The principal amount of the notes is US$20,000. The notes are exercisable and expire on June 3, 2026 (the "Exercisable Date"). Under the terms of the notes, if the notes are not redeemed early and the closing price of the worst-performing basket component is below its strike price on the Exercisable Date, the notes may be settled by delivery of shares or American Depositary Shares of that worst-performing basket component plus cash in lieu of any fractional share. [Continued in footnote 5] 5. [Continued from footnote 4] The strike price for each basket component equals 72.30% of its initial reference level. If the issuer's American Depositary Shares are determined to be the worst-performing basket component, settlement may result in delivery of up to 71 American Depositary Shares of the issuer at a strike price of US$278.8973 per American Depositary Share. In addition, the notes may be redeemed for cash, (i) if, during the observation period prior to the Exercisable Date, the closing price of each basket component has reached its initial reference level at least once, or (ii) if the notes are not redeemed early and the closing price of the worst-performing basket component is at or above its strike price on the Exercisable Date. Rem

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