Taiwan Semiconductor VP reports small ESPP share buys

Taiwan Semiconductor Manufacturing Co. Ltd. VP Bor-Zen Tien reported indirect purchases of the company’s equity on 2026-08-07.

Rhea-AI Filing Summary

Taiwan Semiconductor Manufacturing Co. Ltd. VP Bor-Zen Tien reported indirect purchases of the company’s equity on 2026-08-07. An administrator of the Employee Stock Purchase Plan bought 42 Common Shares (2330.TW) on his behalf and 7 Common Shares for an immediate family member, both at $73.31 per share, under terms predetermined by the issuer.

After these transactions, reported positions include 270 Common Shares held via an ESPP trust and 80 Common Shares held for an immediate family member, plus previously reported holdings of 14,051 Common Shares directly, 132 American Depositary Shares (each representing five Common Shares), and 5,000 Common Shares held indirectly by spouse.

Insider Trade Summary

Net Buyer: 49 shares

Net Buy 5 txns

Insider Tien Bor-Zen

Role VP

Bought 49 shs ($4K)

Type	Security	Shares	Price	Value
Purchase	Common Shares (2330.TW) F2, F3, F4	42	$73.31	$3K
Purchase	Common Shares (2330.TW) F5, F3	7	$73.31	$513.17
holding	Common Shares (2330.TW)	--	--	--
holding	American Depositary Shares (TSM) F1	--	--	--
holding	Common Shares (2330.TW)	--	--	--

Holdings After Transaction: Common Shares (2330.TW) — 270 shares (Indirect, By ESPP Trust); Common Shares (2330.TW) — 80 shares (Indirect, By Immediate Family Member); Common Shares (2330.TW) — 14,051 shares (Direct); American Depositary Shares (TSM) — 132 shares (Direct); Common Shares (2330.TW) — 5,000 shares (Indirect, By Spouse)

Footnotes (5)

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$2,367.1117 in New Taiwan dollars, at the rate of NT$32.288 to US$1.
4. F4. Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP").
5. F5. 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.

Key Figures

Shares purchased via ESPP trust: 42 Common Shares Shares purchased for immediate family member: 7 Common Shares Purchase price per share: $73.31 per share +5 more

8 metrics

Shares purchased via ESPP trust 42 Common Shares Purchased on behalf of filer on 2026-08-07

Shares purchased for immediate family member 7 Common Shares Purchased on 2026-08-07 under ESPP

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

Direct common share holdings 14,051 Common Shares Directly held after reported transactions

ADS holdings 132 American Depositary Shares Each ADS represents five Common Shares

Indirect spouse holdings 5,000 Common Shares Held indirectly by spouse

Indirect ESPP trust holdings 270 Common Shares Held via ESPP trust after the purchase of 42 shares

Indirect immediate family holdings 80 Common Shares Held for immediate family member after the purchase of 7 shares

Key Terms

Employee Stock Purchase Plan, American Depositary Share, ESPP Trust, Immediate Family Member

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.

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.

ESPP Trust financial

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

Immediate Family Member financial

"on behalf of the filer's Immediate Family Member, who is a TSMC employee"

FAQ

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

What did TSM (Taiwan Semiconductor) VP Bor-Zen Tien buy in this Form 4?

Bor-Zen Tien reported indirect purchases of 49 Common Shares of Taiwan Semiconductor on 2026-08-07, consisting of 42 shares via an ESPP trust and 7 shares for an immediate family member, both executed under the company’s Employee Stock Purchase Plan.

At what price were the TSM shares purchased in this Form 4?

The reported purchases were made at $73.31 per share. This U.S. dollar amount reflects translation from an average price of NT$2,367.1117 using an exchange rate of NT$32.288 to US$1, as described in the filing’s footnote.

How many Taiwan Semiconductor shares does Bor-Zen Tien hold after the reported transactions?

Following the reported activity, holdings include 270 Common Shares via an ESPP trust, 80 Common Shares for an immediate family member, 14,051 Common Shares held directly, 132 ADSs, and 5,000 Common Shares held indirectly by spouse, as disclosed.

How are the American Depositary Shares (ADS) for TSM described in this Form 4?

The filing states that each American Depositary Share represents five (5) Common Shares. Bor-Zen Tien is shown holding 132 ADSs directly, which correspond to a larger number of underlying Common Shares based on this stated ratio.

Were the TSM share purchases by Bor-Zen Tien made under an Employee Stock Purchase Plan?

Yes. Footnotes explain that Common Shares were purchased by the ESPP administrator on behalf of Bor-Zen Tien and an immediate family member, pursuant to terms predetermined by the issuer under its Employee Stock Purchase Plan (ESPP).

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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^*

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)
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)								14,051	D
American Depositary Shares (TSM)(1)								132	D
Common Shares (2330.TW)	08/07/2026(2)		P		42	A	$73.31(3)	270(4)	I	By ESPP Trust
Common Shares (2330.TW)								5,000	I	By Spouse
Common Shares (2330.TW)	08/07/2026(5)		P	V	7	A	$73.31(3)	80	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

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$2,367.1117 in New Taiwan dollars, at the rate of NT$32.288 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-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)