TSMC (NYSE: TSM) VP adds 50 common shares through ESPP purchases

Rhea-AI Filing Summary

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD VP Bor-Zen Tien reported small share purchases linked to the company’s Employee Stock Purchase Plan. On June 5, indirect accounts bought a total of 50 Common Shares (2330.TW) in open-market transactions at $76.01 per share, including 7 shares held for an immediate family member and 43 shares held by an ESPP trust, both under predetermined ESPP terms.

Following these transactions, Tien’s reported holdings include 107 American Depositary Shares, which each represent five Common Shares, and 11,051 Common Shares held directly, plus indirect holdings of 67 Common Shares for an immediate family member and 188 Common Shares in the ESPP trust. The activity reflects a modest, routine net purchase rather than a large position change.

Insider Trade Summary

Net Buyer: 50 shares

Net Buy 4 txns

Insider Tien Bor-Zen

Role VP

Bought 50 shs ($4K)

Type	Security	Shares	Price	Value
Purchase	Common Shares (2330.TW)	43	$76.01	$3K
Purchase	Common Shares (2330.TW)	7	$76.01	$532.07
holding	Common Shares (2330.TW)	--	--	--
holding	American Depositary Shares (TSM)	--	--	--

Holdings After Transaction: Common Shares (2330.TW) — 188 shares (Indirect, By ESPP Trust); Common Shares (2330.TW) — 67 shares (Indirect, By Immediate Family Member); Common Shares (2330.TW) — 11,051 shares (Direct); American Depositary Shares (TSM) — 107 shares (Direct)

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$2,392.5207 in New Taiwan dollars, at the rate of NT$31.475 to US$1.
4. F4. Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP").
5. F5. Common Shares purchased by the administrator of the issuer's Employee Stock Purchase Plan ("ESPP") on behalf of the filer's Immediate Family Member, who is a TSMC employee, pursuant to terms predetermined by the issuer.

Key Figures

Open-market purchases: 50 Common Shares Purchase price: $76.01 per share Immediate family purchase: 7 Common Shares +5 more

8 metrics

Open-market purchases 50 Common Shares Non-derivative buys on June 5, 2026

Purchase price $76.01 per share Average price for Common Shares on June 5, 2026

Immediate family purchase 7 Common Shares Indirect holding by immediate family member

ESPP trust purchase 43 Common Shares Indirect holding by ESPP trust

Direct ADS holdings 107 ADS American Depositary Shares held directly after transactions

Direct common holdings 11,051 Common Shares Common Shares (2330.TW) held directly after transactions

ADS to common ratio 1 ADS = 5 Common Shares Each American Depositary Share represents five Common Shares

Indirect ESPP holdings 188 Common Shares Common Shares held under ESPP trust after purchases

Key Terms

American Depositary Share, Employee Stock Purchase Plan, indirect ownership, open-market purchase, +1 more

5 terms

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.

Employee Stock Purchase Plan financial

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

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.

indirect ownership financial

"Indirect ownership noted as "By Immediate Family Member" and "By ESPP Trust"."

open-market purchase financial

"Transaction code P described as Purchase in open market or private transaction."

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.

non-derivative financial

"Common Shares (2330.TW) transactions are classified as non-derivative."

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 06/09/2026 - 06:53 AM Accepted by SEC EDGAR 06/09/2026 - 06:53 AM Learn about SEC filing dates

FAQ

What did TSM VP Bor-Zen Tien report in this Form 4?

Bor-Zen Tien reported small open-market purchases totaling 50 Common Shares. The shares were bought on June 5 through an Employee Stock Purchase Plan and indirect family-related accounts at a price of $76.01 per share.

How many TSM shares did Bor-Zen Tien buy and at what price?

Tien’s indirect accounts bought 50 Common Shares of TSM at $76.01 per share. The transactions include 7 shares for an immediate family member and 43 shares held by an ESPP trust, all under predetermined Employee Stock Purchase Plan terms.

How are TSM American Depositary Shares related to Common Shares?

Each TSM American Depositary Share represents five Common Shares. Tien holds 107 ADS directly, in addition to Common Shares held directly and indirectly. This ratio helps investors compare ADS holdings with underlying Common Share positions.

What are Bor-Zen Tien’s TSM shareholdings after these transactions?

After the reported trades, Tien holds 107 ADS directly, plus 11,051 Common Shares directly. Indirectly, accounts for an immediate family member and an ESPP trust hold 67 and 188 Common Shares, respectively, reflecting modest incremental ownership.

Were the TSM share purchases part of an Employee Stock Purchase Plan?

Yes, the filing states the Common Shares were bought by the administrator of TSM’s Employee Stock Purchase Plan (ESPP). Purchases followed terms predetermined by the issuer, including shares for Tien and an immediate family member who is a TSM employee.

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^*

Tien Bor-Zen

(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)
06/05/2026

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)								11,051	D
American Depositary Shares (TSM)(1)								107	D
Common Shares (2330.TW)	06/05/2026(2)		P	V	43	A	$76.01(3)	188(4)	I	By ESPP Trust
Common Shares (2330.TW)	06/05/2026(5)		P	V	7	A	$76.01(3)	67	I	By Immediate Family Member

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$2,392.5207 in New Taiwan dollars, at the rate of NT$31.475 to US$1.

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

5. Common Shares purchased by the administrator of the issuer's Employee Stock Purchase Plan ("ESPP") on behalf of the filer's Immediate Family Member, who is a TSMC employee, pursuant to terms predetermined by the issuer.

Remarks:

	/s/ Shu-Hua Fang, as attorney-in-fact	06/09/2026
	** 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)