Taiwan Semiconductor CEO buys 144 common shares

The purchase was made on Wei's behalf by the plan administrator under terms predetermined by the issuer.

Rhea-AI Filing Summary

Taiwan Semiconductor Manufacturing Co. Ltd. (TSM) Chairman and CEO Che-Chia Wei reported the purchase of 144 common shares on October 7, 2026. The issuer's Employee Stock Purchase Plan administrator bought them on his behalf under terms predetermined by the issuer, at a reported $79.39 per share, translated from NT$2,524.2277 at NT$31.795 per US$1; no Rule 10b5-1 plan is reported. The post-purchase ESPP Trust position was 18,280 shares. Other reported positions were 7,656,724 shares directly, 285,245 through the LTI Trust, and 700,261 held by his spouse.

Insider Trade Summary

Net Buyer: 144 shares

Net Buy 4 txns

Insider Wei Che-Chia

Role Chairman and CEO

Bought 144 shs ($11K)

Type	Security	Shares	Price	Value
Purchase	Common Shares (2330.TW) F1, F2, F3	144	$79.39	$11K
holding	Common Shares (2330.TW)	--	--	--
holding	Common Shares (2330.TW) F4	--	--	--
holding	Common Shares (2330.TW)	--	--	--

Holdings After Transaction: Common Shares (2330.TW) — 18,280 shares (Indirect, By ESPP Trust); Common Shares (2330.TW) — 7,656,724 shares (Direct); Common Shares (2330.TW) — 285,245 shares (Indirect, By LTI Trust); Common Shares (2330.TW) — 700,261 shares (Indirect, By Spouse)

Footnotes (4)

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").
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.

Key Figures

Common shares purchased: 144 shares Reported purchase price: $79.39 per share ESPP Trust holdings: 18,280 shares +3 more

6 metrics

Common shares purchased 144 shares On October 7, 2026, through the issuer's Employee Stock Purchase Plan

Reported purchase price $79.39 per share Translated from NT$2,524.2277 at NT$31.795 per US$1

ESPP Trust holdings 18,280 shares After the reported purchase on October 7, 2026

Direct common shares 7,656,724 shares Reported as of October 7, 2026

LTI Trust holdings 285,245 shares Reported as of October 7, 2026

Spouse's common shares 700,261 shares Reported as of October 7, 2026

Key Terms

Employee Stock Purchase Plan, Long-Term Incentive ("LTI") Bonus Plan, average purchase price

3 terms

Employee Stock Purchase Plan financial

"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 ("LTI") Bonus Plan financial

"issuer's Long-Term Incentive ("LTI") Bonus Plan"

average purchase price financial

"average purchase price of NT$2,524.2277"

FAQ

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

How many TSM shares did Chairman and CEO Che-Chia Wei buy?

Che-Chia Wei reported a purchase of 144 TSM common shares on October 7, 2026, at a reported $79.39 per share. The issuer's Employee Stock Purchase Plan administrator bought the shares on his behalf under terms predetermined by the issuer. The reported price was translated from an average purchase price of NT$2,524.2277 at NT$31.795 per US$1.

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

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Available on EDGAR 10/08/2026 - 06:32 AM Accepted by SEC EDGAR 10/08/2026 - 06:32 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^*

Wei Che-Chia

(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)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chairman and CEO

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)								7,656,724	D
Common Shares (2330.TW)	10/07/2026(1)		P		144	A	$79.39(2)	18,280	I	By ESPP Trust(3)
Common Shares (2330.TW)								285,245	I	By LTI Trust(4)
Common Shares (2330.TW)								700,261	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$2,524.2277 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").

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.

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)