Taiwan Semiconductor exec buys 57 shares at $76.20

TSM senior vice president Shien-Yang Wu bought additional shares via the employee stock purchase plan and reported updated direct and indirect holdings.

Rhea-AI Filing Summary

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD (TSM) reported that senior vice president Shien-Yang Wu acquired 57 Common Shares on September 7, 2026 through the issuer's Employee Stock Purchase Plan, at $76.20 per share, with purchases made by the ESPP administrator under predetermined terms. The filing also lists Wu's resulting holdings in Common Shares and American Depositary Shares, including shares held directly, through incentive-plan trusts, and by a spouse; no Rule 10b5-1 trading plan is reported.

Insider Trade Summary

Net Buyer: 57 shares

Net Buy 5 txns

Insider Wu Shien-Yang

Role SVP

Bought 57 shs ($4K)

Type	Security	Shares	Price	Value
Purchase	Common Shares (2330.TW) F1, F2, F3	57	$76.20	$4K
holding	Common Shares (2330.TW)	--	--	--
holding	Common Shares (2330.TW) F4	--	--	--
holding	Common Shares (2330.TW)	--	--	--
holding	American Depositary Shares (TSM) F5	--	--	--

Holdings After Transaction: Common Shares (2330.TW) — 6,862 shares (Indirect, By ESPP Trust); Common Shares (2330.TW) — 643,109 shares (Direct); Common Shares (2330.TW) — 10,581 shares (Indirect, By LTI Trust); Common Shares (2330.TW) — 198,943 shares (Indirect, By Spouse); American Depositary Shares (TSM) — 90 shares (Indirect, By Spouse)

Footnotes (5)

1. F1. 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.
2. F2. 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.
3. F3. Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP").
4. F4. 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.
5. F5. Each American Depositary Share represents five (5) Common Shares.

Key Figures

Common Shares purchased: 57 shares Purchase price per Common Share: $76.20 per share Common Shares following transaction – ESPP Trust: 6,862 shares +5 more

8 metrics

Common Shares purchased 57 shares Acquired on September 7, 2026 via Employee Stock Purchase Plan

Purchase price per Common Share $76.20 per share Translated from NT$2,404.3453 at NT$31.552 to US$1

Common Shares following transaction – ESPP Trust 6,862 shares Indirect ownership by ESPP Trust after September 7, 2026 purchase

Direct Common Share holdings 643,109 shares Direct ownership position as of September 7, 2026

LTI trust Common Share holdings 10,581 shares Indirect ownership via Long-Term Incentive trust

Spouse Common Share holdings 198,943 shares Indirect ownership attributed through spouse

Spouse ADS holdings 90 ADS Each ADS represents five Common Shares

ADS to Common Share ratio 5 Common Shares per ADS As stated for TSM American Depositary Shares

Key Terms

Employee Stock Purchase Plan, ESPP Trust, Long-Term Incentive ("LTI") Bonus Plan, American Depositary Share

4 terms

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.

ESPP Trust financial

"total Common Shares following transaction held indirect By ESPP Trust"

Long-Term Incentive ("LTI") Bonus Plan financial

"Represents Common Shares purchased by a trust with cash received under the issuer's Long-Term Incentive ("LTI") Bonus Plan"

American Depositary Share financial

"Each American Depositary Share represents five (5) Common Shares"

An American Depositary Share (ADS) is a U.S.-listed certificate that represents a specified number of shares in a foreign company, held by a custodian bank; it works like a receipt that allows U.S. investors to buy and trade foreign equity on American exchanges without dealing with another country’s markets. Investors care because ADSs make foreign stocks easier to access, improve liquidity and settlement in dollars, and can affect dividend payments, voting rights and regulatory oversight compared with buying the underlying foreign shares directly.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did TSM executive Shien-Yang Wu buy in this Form 4?

Shien-Yang Wu acquired 57 Common Shares of TSM on September 7, 2026 through the company’s Employee Stock Purchase Plan, with the plan administrator purchasing the shares on his behalf under predetermined terms.

What price did Shien-Yang Wu pay for TSM shares in this transaction?

The reported purchase price was $76.20 per Common Share, translated from an average purchase price of NT$2,404.3453 using an exchange rate of NT$31.552 to US$1.

How many TSM Common Shares does Shien-Yang Wu hold directly after this filing?

After the reported transaction, Shien-Yang Wu holds 643,109 Common Shares of TSM in direct ownership, in addition to various indirect holdings through trusts and a spouse.

What are Shien-Yang Wu’s indirect TSM share holdings reported in this Form 4?

Indirect holdings include 6,862 Common Shares via an ESPP Trust, 10,581 Common Shares via an LTI trust, 198,943 Common Shares held by a spouse, and 90 American Depositary Shares held by a spouse.

How do TSM American Depositary Shares relate to Common Shares in this filing?

Each American Depositary Share (ADS) of TSM represents five Common Shares. The filing reports that 90 ADSs held by a spouse correspond to 450 underlying Common Shares.

Was the TSM Form 4 transaction under a Rule 10b5-1 trading plan?

No. The document-level Rule 10b5-1 checkbox is marked false, and there is no footnote stating that the September 7, 2026 purchase was made pursuant to a Rule 10b5-1 trading plan.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/09/2026 - 06:08 AM Accepted by SEC EDGAR 09/09/2026 - 06:08 AM Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED 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^*

Wu Shien-Yang

(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)
	SVP

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)

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)								643,109	D
Common Shares (2330.TW)	09/07/2026(1)		P		57	A	$76.2(2)	6,862(3)	I	By ESPP Trust
Common Shares (2330.TW)								10,581(4)	I	By LTI Trust
Common Shares (2330.TW)								198,943	I	By Spouse
American Depositary Shares (TSM)(5)								90	I	By Spouse

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

Explanation of Responses:

1. 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.

2. 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.

3. Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP").

4. 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.

5. Each American Depositary Share represents five (5) Common Shares.

Remarks:

	/s/ Jen-Chau Huang, as attorney-in-fact	09/09/2026
	** Signature of Reporting Person	Date
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)