STOCK TITAN

Taiwan Semi COO Mii buys 71 shares at $76.20

TSM’s EVP and co-COO reported a small open-market-equivalent ESPP share purchase and detailed existing share and structured-note holdings.

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD (TSM) reported that executive vice president and co–chief operating officer Yuh-Jier Mii indirectly purchased 71 Common Shares on September 7, 2026 at $76.20 per share, through the administrator of the company’s Employee Stock Purchase Plan, increasing indirect ESPP holdings to 8,170 Common Shares. Separate holdings disclosed include a substantial direct position in Common Shares, additional shares held via a Long-Term Incentive bonus plan trust, direct holdings of American Depositary Shares, and Equity Linked Notes referencing up to 703 ADSs that may settle in shares or cash at maturity. No Rule 10b5-1 trading plan is reported.

Positive

  • None.

Negative

  • None.
Insider Mii Yuh-Jier
Role EVP and Co-COO
Bought 71 shs ($5K)
Type Security Shares Price Value
Purchase Common Shares (2330.TW) F2, F3, F4 71 $76.20 $5K
holding Equity Linked Notes F6, F7, F1 -- -- --
holding Common Shares (2330.TW) -- -- --
holding American Depositary Shares (TSM) F1 -- -- --
holding Common Shares (2330.TW) F5 -- -- --
Holdings After Transaction: Common Shares (2330.TW) — 8,170 shares (Indirect, By ESPP Trust); Equity Linked Notes — 150,000 contracts for 703 underlying shares (Direct); Common Shares (2330.TW) — 1,286,261 shares (Direct); American Depositary Shares (TSM) — 25 shares (Direct); Common Shares (2330.TW) — 63,345 shares (Indirect, By LTI Trust)
Footnotes (7)
  1. F1. Each American Depositary Share represents five (5) Common Shares.
  2. F2. 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. F3. The price was translated from the average purchase price of NT$2,404.3453 in New Taiwan dollars, at the rate of NT$31.552 to US$1.
  4. F4. Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP").
  5. F5. 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.
  6. F6. The Equity Linked Notes are issued by UBS AG that reference a basket of equity securities that includes the issuer's American Depositary Shares. The principal amount of the notes is US$150,000. The notes are exercisable and expire on March 4, 2027 (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. The strike price for each basket component equals 55% 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 703 American Depositary Shares of the issuer at a strike price of 213.2515 per American Depositary Share. [Continued in footnote 7]
  7. F7. [Continued from footnote 6] 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.
ESPP purchase shares 71 shares Common Shares purchased on September 7, 2026 through the ESPP administrator
ESPP purchase price $76.20 per share Average U.S. dollar price translated from NT$2,404.3453 at NT$31.552 to US$1
Indirect ESPP holdings after transaction 8,170 Common Shares Common Shares held under TSM’s Employee Stock Purchase Plan for Yuh-Jier Mii
Direct Common Share holdings 1,286,261 Common Shares Directly held by Yuh-Jier Mii as of September 7, 2026
Indirect LTI trust holdings 63,345 Common Shares Held by a trust under TSM’s Long-Term Incentive Bonus Plan with investment control obtained
Direct ADS holdings 25 American Depositary Shares Directly held, each ADS representing five Common Shares
Equity Linked Notes principal $150,000 Principal amount of notes issued by UBS AG referencing a basket including TSM ADS
ADS deliverable under notes 703 American Depositary Shares Maximum TSM ADS deliverable if they are the worst-performing basket component at maturity
Employee Stock Purchase Plan financial
"Common Shares purchased by the administrator of the issuer's Employee Stock Purchase Plan"
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.
Long-Term Incentive Bonus Plan financial
"cash received under the issuer's Long-Term Incentive ("LTI") Bonus Plan"
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.
Equity Linked Notes financial
"The Equity Linked Notes are issued by UBS AG that reference a basket"
strike price financial
"The strike price for each basket component equals 55% of its initial reference"
The strike price is the fixed price at which an option gives its holder the right to buy or sell an underlying stock. Think of it like a coupon that lets you transact at a pre-agreed price regardless of the market; for investors it determines whether an option will be profitable, influences potential gains or losses, and is a key factor in the option’s market value and risk profile.

FAQ

What did TSM executive Yuh-Jier Mii report on this Form 4 for TSM?

Yuh-Jier Mii reported an indirect purchase of 71 Common Shares of TSM on September 7, 2026 at $76.20 per share, through the administrator of TSM’s Employee Stock Purchase Plan, and disclosed updated direct and indirect share and note holdings.

How many TSM shares did the ESPP trust hold for Yuh-Jier Mii after the transaction?

After the September 7, 2026 purchase, the ESPP trust held 8,170 Common Shares of TSM on behalf of Yuh-Jier Mii. These shares were bought and are held under TSM’s Employee Stock Purchase Plan pursuant to terms predetermined by the company.

What are Yuh-Jier Mii’s direct Common Share holdings of TSM after this filing?

The Form 4 reports that Yuh-Jier Mii directly held 1,286,261 Common Shares of TSM as of September 7, 2026. This direct position is separate from indirect holdings via the ESPP trust and the Long-Term Incentive bonus plan trust.

What other indirect TSM share holdings does Yuh-Jier Mii report?

Besides the ESPP trust, Yuh-Jier Mii reports indirect ownership of 63,345 Common Shares of TSM held by a trust under the company’s Long-Term Incentive Bonus Plan, over which he has obtained investment control, in addition to the 8,170 Common Shares held via the ESPP trust.

How many TSM American Depositary Shares does Yuh-Jier Mii own directly?

The Form 4 shows that Yuh-Jier Mii directly held 25 American Depositary Shares (ADS) of TSM as of September 7, 2026. Each ADS represents five Common Shares, according to the filing’s footnote on the ADS structure.

What are the key terms of the Equity Linked Notes tied to TSM ADS reported in this Form 4?

Yuh-Jier Mii holds Equity Linked Notes with $150,000 principal amount, expiring on March 4, 2027. If TSM’s ADSs are the worst-performing basket component at maturity, settlement may involve delivery of up to 703 TSM ADSs at a strike price of 213.2515 per ADS.

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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*
Mii Yuh-Jier

(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)
EVP and Co-COO
2a. Foreign Trading Symbol
[2330.TW]
3. Date of Earliest Transaction (Month/Day/Year)
09/07/2026
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)1,286,261D
American Depositary Shares (TSM)(1)25D
Common Shares (2330.TW)09/07/2026(2)P71A$76.2(3)8,170(4)IBy ESPP Trust
Common Shares (2330.TW)63,345(5)IBy LTI Trust
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
Equity Linked Notes(6)(7) (6)(7)03/04/2027American Depositary Shares (TSM)(1)(6)(7)703(6)(7)150,000(6)(7)D
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$2,404.3453 in New Taiwan dollars, at the rate of NT$31.552 to US$1.
4. Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP").
5. 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.
6. The Equity Linked Notes are issued by UBS AG that reference a basket of equity securities that includes the issuer's American Depositary Shares. The principal amount of the notes is US$150,000. The notes are exercisable and expire on March 4, 2027 (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. The strike price for each basket component equals 55% 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 703 American Depositary Shares of the issuer at a strike price of 213.2515 per American Depositary Share. [Continued in footnote 7]
7. [Continued from footnote 6] 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.
Remarks:
/s/ Jen-Chau Huang, as attorney-in-fact09/09/2026
** 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)

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