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[Form 4] TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD Insider Trading Activity

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Taiwan Semiconductor Manufacturing Co. VP Tien Bor-Zen reported net open-market purchases of 46 common shares of TSMC on behalf of associated accounts. The shares were bought at $76.62 per share under the company’s Employee Stock Purchase Plan pursuant to predetermined terms.

After these transactions, indirect holdings include 73 common shares held for an immediate family member, 228 common shares held by an ESPP trust, and 1,000 common shares held by a spouse. Direct holdings include 12,051 common shares and 107 American Depositary Shares, with each ADS representing five common shares.

Positive

  • None.

Negative

  • None.
Insider Tien Bor-Zen
Role VP
Bought 46 shs ($4K)
Type Security Shares Price Value
Purchase Common Shares (2330.TW) 40 $76.62 $3K
Purchase Common Shares (2330.TW) 6 $76.62 $459.72
holding Common Shares (2330.TW) -- -- --
holding American Depositary Shares (TSM) -- -- --
holding Common Shares (2330.TW) -- -- --
Holdings After Transaction: Common Shares (2330.TW) — 228 shares (Indirect, By ESPP Trust); Common Shares (2330.TW) — 12,051 shares (Direct, null); American Depositary Shares (TSM) — 107 shares (Direct, null)
Footnotes (1)
  1. Each American Depositary Share represents five (5) Common Shares. 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. The price was translated from the average purchase price of NT$2,462.6361 in New Taiwan dollars, at the rate of NT$32.143 to US$1. Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP"). Common Shares purchased by the administrator of the issuer's Employee Stock Purchase Plan ("ESPP") on behalf of the filer's Immediate Family Member, who is a TSMC employee, pursuant to terms predetermined by the issuer.
Net shares bought 46 shares Net-buy shares in this Form 4
Purchase price $76.62 per share Open-market purchases on 2026-07-07
Direct common shares 12,051 shares Direct common share holdings after transactions
Direct ADS holdings 107 ADS ADS position after transactions
Spouse common shares 1,000 shares Indirect ownership by spouse
Immediate family member shares 73 shares Indirect holdings for immediate family member
ESPP trust shares 228 shares Indirect holdings by ESPP trust
ADS to common ratio 1 ADS = 5 common shares ADS representation per footnote
Employee Stock Purchase Plan financial
"Common Shares purchased by the administrator of the issuer's Employee Stock Purchase Plan ("ESPP") on behalf of the filer"
An employee stock purchase plan is a company program that lets workers buy shares through small payroll deductions, often at a discount to the market price and after a set offering period. Think of it like a workplace savings plan that turns into ownership: it encourages employees to share in the company’s success and can create predictable buying or selling of stock that investors watch because it affects supply, demand and employee incentives.
American Depositary Shares financial
"Each American Depositary Share represents five (5) Common Shares."
American depositary shares (ADSs) are a way for investors in the United States to buy shares of foreign companies without dealing with international markets directly. They represent ownership in a foreign company's stock and are traded on U.S. stock exchanges, making it easier for American investors to buy, sell, and own parts of companies from around the world.
open-market purchase financial
"Purchase in open market or private transaction"
An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.
immediate family member financial
"on behalf of the filer's Immediate Family Member, who is a TSMC employee"
indirect ownership financial
"By Immediate Family Member" and "By Spouse" indicate indirect ownership"
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Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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)
HSINCHUTAIWAN300096
(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)
Director10% Owner
XOfficer (give title below)Other (specify below)
VP
2a. Foreign Trading Symbol
[2330.TW]
3. Date of Earliest Transaction (Month/Day/Year)
07/07/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Shares (2330.TW)12,051D
American Depositary Shares (TSM)(1)107D
Common Shares (2330.TW)07/07/2026(2)P40A$76.62(3)228(4)IBy ESPP Trust
Common Shares (2330.TW)1,000IBy Spouse
Common Shares (2330.TW)07/07/2026(5)PV6A$76.62(3)73IBy 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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Explanation of Responses:
1. Each American Depositary Share represents five (5) Common Shares.
2. 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.
3. The price was translated from the average purchase price of NT$2,462.6361 in New Taiwan dollars, at the rate of NT$32.143 to US$1.
4. Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP").
5. Common Shares purchased by the administrator of the issuer's Employee Stock Purchase Plan ("ESPP") on behalf of the filer's Immediate Family Member, who is a TSMC employee, pursuant to terms predetermined by the issuer.
Remarks:
/s/ Jen-Chau Huang, as attorney-in-fact07/09/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR