TSM VP buys 51 shares via ESPP trust

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD vice president Juiping Chuang reported a small open-market purchase linked to the company’s Employee Stock Purchase Plan.

Rhea-AI Filing Summary

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD vice president Juiping Chuang reported a small open-market purchase linked to the company’s Employee Stock Purchase Plan. An ESPP trust bought 51 Common Shares (2330.TW) at $71.82 per share on May 8, 2026, increasing the indirect ESPP trust holding to 4,096 shares.

Beyond this plan purchase, the filing shows broader ownership positions. Chuang directly holds 239,738 Common Shares and 50 American Depositary Shares, each ADS representing five Common Shares. Additional indirect holdings include 106,000 Common Shares held by a spouse and 7,036 Common Shares held by a long-term incentive bonus plan trust over which Chuang has investment control.

Insider Trade Summary

Net Buyer: 51 shares

Net Buy 5 txns

Insider Chuang Juiping

Role VP

Bought 51 shs ($4K)

Type	Security	Shares	Price	Value
Purchase	Common Shares (2330.TW)	51	$71.82	$4K
holding	Common Shares (2330.TW)	--	--	--
holding	American Depositary Shares (TSM)	--	--	--
holding	Common Shares (2330.TW)	--	--	--
holding	Common Shares (2330.TW)	--	--	--

Holdings After Transaction: Common Shares (2330.TW) — 4,096 shares (Indirect, By ESPP Trust); Common Shares (2330.TW) — 239,738 shares (Direct); American Depositary Shares (TSM) — 50 shares (Direct); Common Shares (2330.TW) — 7,036 shares (Indirect, By LTI Trust); Common Shares (2330.TW) — 106,000 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$2,257.1777 in New Taiwan dollars, at the rate of NT$31.429 to US$1.
4. F4. Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP").
5. F5. 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

ESPP purchase: 51 Common Shares Purchase price: $71.82 per share ESPP trust holding: 4,096 Common Shares +4 more

7 metrics

ESPP purchase 51 Common Shares Open-market purchase on May 8, 2026 via ESPP trust

Purchase price $71.82 per share Average price translated from NT$2,257.1777

ESPP trust holding 4,096 Common Shares Indirect holding after ESPP purchase

Direct Common Shares 239,738 Common Shares Direct TSM ownership after reported transactions

Spouse-held shares 106,000 Common Shares Indirect ownership by spouse

LTI trust shares 7,036 Common Shares Indirect via Long-Term Incentive Bonus Plan trust

ADS holdings 50 American Depositary Shares Each ADS represents five Common Shares

Key Terms

Employee Stock Purchase Plan, ESPP, Long-Term Incentive ("LTI") Bonus Plan, American Depositary Share, +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.

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"

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.

ESPP Trust financial

"nature_of_ownership": "By ESPP Trust""

FAQ

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

What did TSM vice president Juiping Chuang report in this Form 4?

Juiping Chuang reported a small open-market purchase through an Employee Stock Purchase Plan. An ESPP trust acquired 51 TSM Common Shares on May 8, 2026, adding to existing indirect holdings shown in the filing.

How many TSM shares did the ESPP trust buy for Juiping Chuang and at what price?

The ESPP trust bought 51 TSM Common Shares for Juiping Chuang at $71.82 per share. The price reflects a translation from an average NT$2,257.1777 using an exchange rate of NT$31.429 to US$1, as disclosed.

What are Juiping Chuang’s total TSM holdings shown in this Form 4 filing?

The filing shows 239,738 TSM Common Shares held directly, plus 50 American Depositary Shares. Indirectly, there are 106,000 Common Shares held by a spouse, 7,036 by an LTI trust, and 4,096 by an ESPP trust after the reported purchase.

How are Juiping Chuang’s indirect TSM holdings structured in this Form 4?

Indirect holdings are split among a spouse account, an LTI trust, and an ESPP trust. The spouse holds 106,000 Common Shares, the LTI trust holds 7,036 shares with investment control, and the ESPP trust holds 4,096 shares after the latest purchase.

What does the Form 4 reveal about TSM American Depositary Shares held by Juiping Chuang?

The Form 4 shows Juiping Chuang directly holds 50 American Depositary Shares of TSM. Each American Depositary Share represents five Common Shares, giving exposure to the underlying Taiwan-listed equity through U.S.-traded securities.

Is the reported TSM share purchase by Juiping Chuang discretionary or plan-based?

The purchase is plan-based under TSM’s Employee Stock Purchase Plan. The filing states Common Shares were bought by the ESPP administrator on predetermined terms, indicating a structured compensation-related acquisition rather than a purely discretionary market trade.

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

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Accepted by SEC EDGAR 05/11/2026 - 06:43 AM EDT 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^*

Chuang Juiping

(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)
05/08/2026

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)								239,738	D
American Depositary Shares (TSM)(1)								50	D
Common Shares (2330.TW)	05/08/2026(2)		P	V	51	A	$71.82(3)	4,096(4)	I	By ESPP Trust
Common Shares (2330.TW)								7,036(5)	I	By LTI Trust
Common Shares (2330.TW)								106,000	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. 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$2,257.1777 in New Taiwan dollars, at the rate of NT$31.429 to US$1.

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

5. 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	05/11/2026
	** 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)