Taiwan Semiconductor: 46-share purchase for Yao-Ching Ku

The vice president's purchase was made under issuer-predetermined ESPP terms and is listed as held through the ESPP Trust.

Rhea-AI Filing Summary

Taiwan Semiconductor Manufacturing Co Ltd (TSM) vice president Yao-Ching Ku reported that the issuer's Employee Stock Purchase Plan administrator purchased 46 Common Shares on Ku's behalf on October 7, 2026, at $79.3900 per share under issuer-predetermined terms. The shares were held through the ESPP Trust, which held 234 shares after the purchase. The price was translated from an average purchase price of NT$2,524.2277 at NT$31.795 per US$1. No Rule 10b5-1 plan is reported.

Insider Trade Summary

Net Buyer: 46 shares

Net Buy 4 txns

Insider Ku Yao-Ching

Role VP

Bought 46 shs ($4K)

Type	Security	Shares	Price	Value
Purchase	Common Shares (2330.TW) F1, F2, F3	46	$79.39	$4K
holding	Common Shares (2330.TW)	--	--	--
holding	Common Shares (2330.TW)	--	--	--
holding	Common Shares (2330.TW)	--	--	--

Holdings After Transaction: Common Shares (2330.TW) — 234 shares (Indirect, By ESPP Trust); Common Shares (2330.TW) — 30,851 shares (Direct); Common Shares (2330.TW) — 72,946 shares (Indirect, By Spouse); Common Shares (2330.TW) — 131,000 shares (Indirect, By Wei Liang Asset Management Co. Ltd.)

Footnotes (3)

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$2,524.2277 in New Taiwan dollars, at the rate of NT$31.795 to US$1.
3. F3. Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP").

Key Figures

Common Shares purchased: 46 shares Purchase price: $79.3900 per share Average purchase price: NT$2,524.2277 +5 more

8 metrics

Common Shares purchased 46 shares Purchased through the issuer's Employee Stock Purchase Plan on October 7, 2026

Purchase price $79.3900 per share Price translated from the average purchase price in New Taiwan dollars

Average purchase price NT$2,524.2277 Average purchase price in New Taiwan dollars

Currency translation rate NT$31.795 per US$1 Rate used to translate the average purchase price

Shares held through ESPP Trust 234 shares Following the purchase on October 7, 2026

Shares held directly 30,851 shares Holding reported as of October 7, 2026

Shares held by spouse 72,946 shares Holding reported as of October 7, 2026

Shares held by Wei Liang Asset Management Co. Ltd. 131,000 shares Holding reported as of October 7, 2026

Key Terms

Employee Stock Purchase Plan, average purchase price, New Taiwan dollars

3 terms

Employee Stock Purchase Plan financial

"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.

average purchase price financial

"average purchase price of NT$2,524.2277"

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 shares did Yao-Ching Ku purchase and at what price?

The issuer's Employee Stock Purchase Plan administrator purchased 46 Common Shares on behalf of vice president Yao-Ching Ku on October 7, 2026, at $79.3900 per share. The purchase followed terms predetermined by the issuer, and no Rule 10b5-1 plan is reported.

What TSM shareholdings were listed for Yao-Ching Ku?

The report lists 234 shares held through the ESPP Trust after the purchase, 30,851 shares held directly, 72,946 shares held by Ku's spouse, and 131,000 shares held by Wei Liang Asset Management Co. Ltd. The holdings are dated October 7, 2026.

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

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Available on EDGAR 10/08/2026 - 06:25 AM Accepted by SEC EDGAR 10/08/2026 - 06:24 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^*

Ku Yao-Ching

(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)								30,851	D
Common Shares (2330.TW)	10/07/2026(1)		P		46	A	$79.39(2)	234	I	By ESPP Trust(3)
Common Shares (2330.TW)								72,946	I	By Spouse
Common Shares (2330.TW)								131,000	I	By Wei Liang Asset Management Co. Ltd.

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$2,524.2277 in New Taiwan dollars, at the rate of NT$31.795 to US$1.

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

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)