TSM VP Ku Yao-Ching buys 46 shares via ESPP

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD VP Ku Yao-Ching reported an indirect open-market purchase of 46 Common Shares (2330.TW) at $76.62 per share.

Rhea-AI Filing Summary

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD VP Ku Yao-Ching reported an indirect open-market purchase of 46 Common Shares (2330.TW) at $76.62 per share. The shares were bought by the administrator of the issuer's Employee Stock Purchase Plan on predetermined terms and are held under the ESPP trust.

After these transactions, Ku’s reported holdings include 94 Common Shares held indirectly by the ESPP trust, 131,000 Common Shares held indirectly through Wei Liang Asset Management Co. Ltd., 72,946 Common Shares held indirectly by a spouse, and 30,851 Common Shares held directly.

Insights

Equity compensation and insider trading analyst

Routine ESPP purchase of 46 shares, very small versus existing holdings.

The filing shows an open-market purchase of 46 Common Shares at $76.62 per share, executed by the administrator of the Employee Stock Purchase Plan under predetermined terms. This is standard ESPP activity rather than a discretionary market-timing trade.

Post-transaction, reported holdings total 131,000 shares via Wei Liang Asset Management, 72,946 via spouse, 30,851 directly, and 94 via the ESPP trust. The purchased amount is very small compared to these positions, so the transaction appears routine and not thesis-changing.

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)	46	$76.62	$4K
holding	Common Shares (2330.TW)	--	--	--
holding	Common Shares (2330.TW)	--	--	--
holding	Common Shares (2330.TW)	--	--	--

Holdings After Transaction: Common Shares (2330.TW) — 94 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$2,462.6361 in New Taiwan dollars, at the rate of NT$32.143 to US$1.
3. F3. Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP").

Key Figures

ESPP purchase size: 46 shares ESPP purchase price: $76.62 per share ESPP trust holdings after: 94 shares +5 more

8 metrics

ESPP purchase size 46 shares Common Shares (2330.TW) bought on 2026-07-07

ESPP purchase price $76.62 per share Open-market purchase through ESPP administrator

ESPP trust holdings after 94 shares Indirectly held under Employee Stock Purchase Plan

Indirect holdings via Wei Liang Asset Management 131,000 shares Common Shares (2330.TW) held indirectly

Indirect holdings via spouse 72,946 shares Common Shares (2330.TW) held by spouse

Direct holdings 30,851 shares Common Shares (2330.TW) held directly

NT dollar ESPP price NT$2,462.6361 Average ESPP purchase price before FX translation

FX rate used NT$32.143 to US$1 Exchange rate used to translate ESPP price

Key Terms

Employee Stock Purchase Plan, ESPP, open-market purchase, indirect ownership, +1 more

5 terms

Employee Stock Purchase Plan financial

"Common Shares purchased by the administrator of the issuer's Employee Stock Purchase Plan ("ESPP") on behalf of the filer"

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 financial

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

An Employee Stock Purchase Plan (ESPP) is a company program that lets employees buy the company’s shares at a reduced price, usually by setting aside a small portion of their pay over time. It matters to investors because it encourages employees to own part of the business—like giving staff a discounted membership— which can boost commitment and performance, while also potentially increasing the number of shares available and affecting shareholder value.

open-market purchase financial

"transaction_action": "open-market purchase""

An open-market purchase is when an investor or a company buys shares on a public stock exchange at the going market price, rather than through a private deal. It matters to investors because these purchases change how many shares are available, can push the stock price up or signal confidence from large buyers, and often affect per-share metrics like earnings—think of it like someone buying lots of apples off a grocery shelf, reducing supply and potentially raising the price.

indirect ownership financial

"ownership_type": "indirect""

Common Shares (2330.TW) financial

"security_title": "Common Shares (2330.TW)""

FAQ

What insider transaction did TSM VP Ku Yao-Ching report on this Form 4?

TSM VP Ku Yao-Ching reported an indirect purchase of 46 Common Shares (2330.TW) at $76.62 per share. The shares were acquired through the company’s Employee Stock Purchase Plan by its administrator under predetermined terms and are held in an ESPP trust.

How many TSM shares did Ku Yao-Ching hold after the ESPP purchase?

After the reported activity, Ku Yao-Ching’s holdings include 131,000 Common Shares via Wei Liang Asset Management, 72,946 via a spouse, 30,851 held directly, and 94 held indirectly under the Employee Stock Purchase Plan trust, according to the Form 4 data.

Was Ku Yao-Ching’s TSM share transaction a buy or sell?

The Form 4 shows a buy transaction. It records an open-market purchase of 46 Common Shares at $76.62 per share, executed through the Employee Stock Purchase Plan, with no reported sales or derivative exercises in the disclosed transactions.

How was the TSM ESPP purchase price for Ku Yao-Ching calculated?

The reported US dollar price of $76.62 per share was translated from an average purchase price of NT$2,462.6361, using an exchange rate of NT$32.143 to US$1, as described in the Form 4 footnotes detailing the Employee Stock Purchase Plan transaction.

What portion of Ku Yao-Ching’s TSM holdings are indirect versus direct?

Most holdings are indirect. The Form 4 lists 131,000 shares via Wei Liang Asset Management, 72,946 via a spouse, and 94 via the ESPP trust, versus 30,851 shares held directly, highlighting that indirect positions represent the majority of the reported ownership.

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Available on EDGAR 07/09/2026 - 06:15 AM Accepted by SEC EDGAR 07/09/2026 - 06:14 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)
07/07/2026

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)	07/07/2026(1)		P		46	A	$76.62(2)	94(3)	I	By ESPP Trust
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$2,462.6361 in New Taiwan dollars, at the rate of NT$32.143 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	07/09/2026
	** 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)