TSMC executive buys shares via employee plan

Wu Shien-Yang, Senior Vice President of Taiwan Semiconductor Manufacturing Co. Ltd., reported a purchase of 57 Common Shares (2330.TW) on 2026-08-07 at $73.31 per share.

Rhea-AI Filing Summary

Wu Shien-Yang, Senior Vice President of Taiwan Semiconductor Manufacturing Co. Ltd., reported a purchase of 57 Common Shares (2330.TW) on 2026-08-07 at $73.31 per share. The shares were bought in U.S. dollars by the administrator of the company’s Employee Stock Purchase Plan (ESPP) pursuant to predetermined terms, and are held indirectly in an ESPP trust, bringing that ESPP-related holding to 6,805 Common Shares. Separate from this transaction, Wu also reports 630,228 Common Shares held directly, 10,581 Common Shares held through a Long-Term Incentive (LTI) bonus plan trust, 198,943 Common Shares held indirectly by a spouse, and 90 American Depositary Shares held indirectly by a spouse, with each ADS representing five Common Shares.

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	$73.31	$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) — 6,805 shares (Indirect, By ESPP Trust); Common Shares (2330.TW) — 630,228 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$2,367.1117 in New Taiwan dollars, at the rate of NT$32.288 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

Shares purchased: 57 Common Shares Purchase price per share: $73.31 ESPP trust holdings after purchase: 6,805 Common Shares +5 more

8 metrics

Shares purchased 57 Common Shares Purchased on 2026-08-07 via Employee Stock Purchase Plan

Purchase price per share $73.31 Translated from NT$2,367.1117 at NT$32.288 to US$1

ESPP trust holdings after purchase 6,805 Common Shares Indirect holdings under issuer's Employee Stock Purchase Plan

Direct Common Share holdings 630,228 Common Shares Directly held by Wu Shien-Yang after reported activity

LTI trust holdings 10,581 Common Shares Indirect holdings via Long-Term Incentive Bonus Plan trust

Spouse Common Share holdings 198,943 Common Shares Indirect holdings reported as "By Spouse"

Spouse ADS holdings 90 American Depositary Shares Each ADS represents five Common Shares

FX rate used NT$32.288 to US$1 Rate used to translate NT$2,367.1117 average purchase price

Key Terms

Employee Stock Purchase Plan, Long-Term Incentive Bonus Plan, American Depositary Share

3 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.

Long-Term Incentive Bonus Plan financial

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

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 Wu Shien-Yang report in this Form 4 transaction?

Wu Shien-Yang reported a purchase of 57 Common Shares of Taiwan Semiconductor Manufacturing Co. Ltd. at $73.31 per share, executed through the company’s Employee Stock Purchase Plan (ESPP) and held in an ESPP trust.

At what price did TSM shares trade in Wu Shien-Yang’s reported purchase?

The reported transaction price was $73.31 per share, translated from an average purchase price of NT$2,367.1117 using an exchange rate of NT$32.288 to US$1, as disclosed in the filing footnotes.

How many Taiwan Semiconductor (TSM) shares does Wu Shien-Yang hold directly after this filing?

After the reported activity, Wu lists 630,228 Common Shares held directly. This direct position is separate from indirect holdings in an ESPP trust, an LTI bonus plan trust, and shares and ADSs held by a spouse.

What are Wu Shien-Yang’s indirect TSM holdings through plans and spouse accounts?

Indirectly, Wu reports 6,805 Common Shares via an ESPP trust, 10,581 Common Shares via an LTI bonus plan trust, 198,943 Common Shares held by a spouse, and 90 American Depositary Shares held by a spouse, each ADS representing five Common Shares.

Was the TSM share purchase by Wu Shien-Yang made under a 10b5-1 trading plan?

The Form 4 indicates the Rule 10b5-1 checkbox is not affirmed for this filing, and the footnotes describe the trade as made under the company’s Employee Stock Purchase Plan rather than a 10b5-1 trading plan.

What does each TSM American Depositary Share represent in this Form 4?

The filing states that each American Depositary Share (ADS) represents five (5) Common Shares of Taiwan Semiconductor Manufacturing Co. Ltd., providing a direct equivalence between ADSs traded in the U.S. and underlying Common Shares.

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Accepted by SEC EDGAR 08/10/2026 - 07:58 AM EDT 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)
08/07/2026

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)								630,228	D
Common Shares (2330.TW)	08/07/2026(1)		P		57	A	$73.31(2)	6,805(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$2,367.1117 in New Taiwan dollars, at the rate of NT$32.288 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	08/10/2026
	** 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)