TSMC VP buys 47 shares at $76.20 via plan

Q: What insider transaction did TSM VP Chuang Tzu-Sou report on this Form 4?

He indirectly purchased 47 Common Shares on September 7, 2026 at $76.20 per share through the administrator of Taiwan Semiconductor’s Employee Stock Purchase Plan under terms predetermined by the company.

Q: How many TSM shares does Chuang Tzu-Sou hold after this transaction?

After the reported transactions, he holds 1,503,340 shares directly, 5,853 shares indirectly via the Employee Stock Purchase Plan trust, and 7,036 shares indirectly via a Long-Term Incentive bonus plan trust.

Q: What price did the TSM shares cost in the reported ESPP purchase?

The 47 shares were acquired at $76.20 per share. The price was translated from an average purchase price of NT$2,404.3453 using an exchange rate of NT$31.552 to US$1.

Q: How are the indirectly held TSM shares structured for Chuang Tzu-Sou?

He has 5,853 shares held by an ESPP trust under the Employee Stock Purchase Plan and 7,036 shares held by a trust funded through the Long-Term Incentive Bonus Plan, over which he has obtained investment control.

Available on EDGAR 09/09/2026 - 06:04 AM EDT Accepted by SEC EDGAR 09/09/2026 - 06:04 AM EDT

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Rhea-AI Filing Summary

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD (TSM) reported that vice president Chuang Tzu-Sou indirectly purchased 47 Common Shares (2330.TW) on September 7, 2026 at $76.20 per share through the administrator of the company’s Employee Stock Purchase Plan under predetermined terms. After this ESPP purchase, 5,853 shares are held indirectly via the ESPP trust, 7,036 shares are held indirectly via a Long-Term Incentive bonus plan trust over which he has obtained investment control, and 1,503,340 shares are held directly. No Rule 10b5-1 trading plan is reported for these transactions.

Insider Trade Summary

Net Buyer: 47 shares

Net Buy 1 txn

Insider Chuang Tzu-Sou

Role VP

Bought 47 shs ($4K)

Increase in Position 0.81%

Type	Security	Shares	Price	Value
Purchase	Common Shares (2330.TW) ^{F1, F2, F3}	47	$76.20	$4K
Holding	Common Shares (2330.TW)	--	--	--
Holding	Common Shares (2330.TW) ^F4	--	--	--

Holdings After Transaction: Common Shares (2330.TW) — 5,853 shares (Indirect, By ESPP Trust); Common Shares (2330.TW) — 1,503,340 shares (Direct); Common Shares (2330.TW) — 7,036 shares (Indirect, By LTI Trust)

Holdings Before and After: Common Shares (2330.TW), 5,806 to 5,853 shares (Indirect, By ESPP Trust)

Other Insiders: 29 other insiders reported open-market purchases of this stock in the 30 days up to this filing.

Footnotes (4)

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.
F2. The price was translated from the average purchase price of NT$2,404.3453 in New Taiwan dollars, at the rate of NT$31.552 to US$1.
F3. Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP").
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

Shares purchased: 47 shares Purchase price per share: $76.20 per share Direct holdings after transaction: 1,503,340 shares +4 more

7 metrics

Shares purchased 47 shares Common Shares (2330.TW) acquired on September 7, 2026 via ESPP administrator

Purchase price per share $76.20 per share Translated from NT$2,404.3453 at NT$31.552 to US$1

Direct holdings after transaction 1,503,340 shares Common Shares held directly by Chuang Tzu-Sou after September 7, 2026

ESPP trust holdings after transaction 5,853 shares Common Shares held indirectly under the Employee Stock Purchase Plan

LTI trust holdings after transaction 7,036 shares Common Shares held indirectly by a Long-Term Incentive Bonus Plan trust

Average NT$ purchase price NT$2,404.3453 Average purchase price in New Taiwan dollars used for the ESPP transaction

FX rate used NT$31.552 to US$1 Exchange rate applied to translate the ESPP purchase price into U.S. dollars

Key Terms

Employee Stock Purchase Plan, Long-Term Incentive ("LTI") Bonus Plan, investment control, indirect ownership

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.

Long-Term Incentive ("LTI") Bonus Plan financial

"Represents Common Shares purchased by a trust with cash received under the issuer's Long-Term Incentive ("LTI") Bonus Plan"

investment control financial

"over which the filer has obtained investment control"

indirect ownership financial

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

FAQ

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

What insider transaction did TSM VP Chuang Tzu-Sou report on this Form 4?

He indirectly purchased 47 Common Shares on September 7, 2026 at $76.20 per share through the administrator of Taiwan Semiconductor’s Employee Stock Purchase Plan under terms predetermined by the company.

How many TSM shares does Chuang Tzu-Sou hold after this transaction?

After the reported transactions, he holds 1,503,340 shares directly, 5,853 shares indirectly via the Employee Stock Purchase Plan trust, and 7,036 shares indirectly via a Long-Term Incentive bonus plan trust.

Was the TSM insider trade made under a Rule 10b5-1 trading plan?

No. The filing’s Rule 10b5-1 checkbox is not marked as affirmative, and the footnotes do not state that the transactions were made under a Rule 10b5-1 trading plan.

What price did the TSM shares cost in the reported ESPP purchase?

The 47 shares were acquired at $76.20 per share. The price was translated from an average purchase price of NT$2,404.3453 using an exchange rate of NT$31.552 to US$1.

How are the indirectly held TSM shares structured for Chuang Tzu-Sou?

He has 5,853 shares held by an ESPP trust under the Employee Stock Purchase Plan and 7,036 shares held by a trust funded through the Long-Term Incentive Bonus Plan, over which he has obtained investment control.

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

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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^*

Chuang Tzu-Sou

(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)
09/07/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Shares (2330.TW)								1,503,340	D
Common Shares (2330.TW)	09/07/2026⁽¹⁾		P		47	A	$76.2⁽²⁾	5,853⁽³⁾	I	By ESPP Trust
Common Shares (2330.TW)								7,036⁽⁴⁾	I	By LTI Trust

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

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$2,404.3453 in New Taiwan dollars, at the rate of NT$31.552 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	09/09/2026
	** 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)

Source: View Original Filing on SEC EDGAR