TSMC VP Bor-Zen Tien buys 40 shares through stock plan

Taiwan Semiconductor Manufacturing Co Ltd (TSM) VP Bor-Zen Tien reported two purchases on October 7, 2026, through the issuer’s Employee Stock Purchase Plan.

Rhea-AI Filing Summary

Taiwan Semiconductor Manufacturing Co Ltd (TSM) VP Bor-Zen Tien reported two purchases on October 7, 2026, through the issuer’s Employee Stock Purchase Plan. The plan administrator purchased 40 Common Shares on Tien’s behalf, with 353 shares held by the ESPP Trust afterward; it purchased 7 Common Shares for Tien’s immediate family member, a TSMC employee, with 92 shares held by that family member afterward. Both purchases were reported at $79.3900 per share and followed terms predetermined by the issuer.

Insider Trade Summary

Net Buyer: 47 shares

Net Buy 5 txns

Insider Tien Bor-Zen

Role VP

Bought 47 shs ($4K)

Type	Security	Shares	Price	Value
Purchase	Common Shares (2330.TW) F2, F3, F4	40	$79.39	$3K
Purchase	Common Shares (2330.TW) F5, F3	7	$79.39	$555.73
holding	Common Shares (2330.TW)	--	--	--
holding	American Depositary Shares (TSM) F1	--	--	--
holding	Common Shares (2330.TW)	--	--	--

Holdings After Transaction: Common Shares (2330.TW) — 353 shares (Indirect, By ESPP Trust); Common Shares (2330.TW) — 92 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$2,524.2277 in New Taiwan dollars, at the rate of NT$31.795 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

Common Shares purchased on behalf of Bor-Zen Tien: 40 shares Common Shares purchased on behalf of Tien’s immediate family member: 7 shares Reported purchase price: $79.3900 per share +2 more

5 metrics

Common Shares purchased on behalf of Bor-Zen Tien 40 shares October 7, 2026

Common Shares purchased on behalf of Tien’s immediate family member 7 shares October 7, 2026

Reported purchase price $79.3900 per share Both purchases on October 7, 2026

Common Shares held by ESPP Trust after purchase 353 shares After the purchase on October 7, 2026

Common Shares held by Tien’s immediate family member after purchase 92 shares After the purchase on October 7, 2026

Key Terms

Employee Stock Purchase Plan, American Depositary Share, New Taiwan dollars

3 terms

Employee Stock Purchase Plan financial

"purchased and held under 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.

New Taiwan dollars financial

"in New Taiwan dollars"

The New Taiwan Dollar (NTD) is the official currency used in Taiwan for everyday transactions, like buying groceries or paying bills. For investors, it matters because its value can influence Taiwan’s economy and affect the profitability of investments related to the region. Changes in the currency’s strength can also impact international trade and financial markets involving Taiwan.

FAQ

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

How many TSM Common Shares were purchased in the ESPP transactions?

Two transactions were reported: 40 Common Shares purchased by the plan administrator on behalf of VP Bor-Zen Tien and 7 purchased on behalf of his immediate family member, a TSMC employee, on October 7, 2026. Both were reported at $79.3900 per share.

How was the TSM purchase price translated into U.S. dollars?

The reported price was translated from an average purchase price of NT$2,524.2277 in New Taiwan dollars at a rate of NT$31.795 to US$1.

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

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Available on EDGAR 10/08/2026 - 06:30 AM Accepted by SEC EDGAR 10/08/2026 - 06:30 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^*

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)
10/07/2026

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)	10/07/2026(2)		P		40	A	$79.39(3)	353	I	By ESPP Trust(4)
Common Shares (2330.TW)								5,000	I	By Spouse
Common Shares (2330.TW)	10/07/2026(5)		P	V	7	A	$79.39(3)	92	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$2,524.2277 in New Taiwan dollars, at the rate of NT$31.795 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	10/08/2026
	** 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)