What indirect TSM common share holdings does Bor-Zen Tien report on this Form 4?

Tien reports 53 Common Shares held indirectly by an immediate family member and 101 Common Shares held by an ESPP Trust. These indirect holdings are identified separately from his direct ownership in the Form 4 transaction records.

How are TSM American Depositary Shares related to TSM common shares in this filing?

Each TSM American Depositary Share represents five Common Shares, as stated in the filing footnotes. This means Tien’s ADS holdings correspond economically to a multiple of the underlying TSM Common Shares represented by each ADS.

TSMC (NYSE: TSM) VP adds 20 ADS in open-market purchases

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

Taiwan Semiconductor Manufacturing Co. VP Bor-Zen Tien reported open-market purchases of 20 American Depositary Shares (ADS) of TSM on April 28, 2026, at prices of 390.0000 and 386.0000 per ADS.

Following these trades, Tien directly holds 80 ADS, plus 9,051 Common Shares (2330.TW) directly and additional Common Shares held indirectly by an immediate family member and under an Employee Stock Purchase Plan (ESPP) Trust. Each ADS represents five Common Shares.

Insider Trade Summary

Net Buyer: 20 shares ($7,760)

Net Buy 6 txns

Insider Tien Bor-Zen

Role VP

Bought 20 shs ($8K)

Type	Security	Shares	Price	Value
Purchase	American Depositary Shares (TSM)	10	$386.00	$4K
Purchase	American Depositary Shares (TSM)	5	$390.00	$2K
Purchase	American Depositary Shares (TSM)	5	$390.00	$2K
holding	Common Shares (2330.TW)	--	--	--
holding	Common Shares (2330.TW)	--	--	--
holding	Common Shares (2330.TW)	--	--	--

Holdings After Transaction: American Depositary Shares (TSM) — 80 shares (Direct, null); Common Shares (2330.TW) — 9,051 shares (Direct, null); Common Shares (2330.TW) — 101 shares (Indirect, By ESPP Trust)

Footnotes (1)

Each American Depositary Share represents five (5) Common Shares. Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP").

Key Figures

ADS purchased: 20 ADS Purchase prices: 390.0000 and 386.0000 per ADS ADS held after transactions: 80 ADS +4 more

7 metrics

ADS purchased 20 ADS Open-market buys on April 28, 2026

Purchase prices 390.0000 and 386.0000 per ADS American Depositary Shares of TSM

ADS held after transactions 80 ADS Direct ownership following April 28, 2026 trades

Direct common shares 9,051 Common Shares TSMC Common Shares (2330.TW) held directly

Indirect family holdings 53 Common Shares Held by immediate family member

ESPP Trust holdings 101 Common Shares Held by ESPP Trust

ADS to Common ratio 1 ADS = 5 Common Shares Per filing footnote

Key Terms

American Depositary Shares, Employee Stock Purchase Plan, ESPP Trust, immediate family member

4 terms

American Depositary Shares financial

"American Depositary Shares (TSM) were bought in open-market purchases"

American depositary shares (ADSs) are a way for investors in the United States to buy shares of foreign companies without dealing with international markets directly. They represent ownership in a foreign company's stock and are traded on U.S. stock exchanges, making it easier for American investors to buy, sell, and own parts of companies from around the world.

Employee Stock Purchase Plan financial

"Common Shares purchased and held under 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.

ESPP Trust financial

"Common Shares are also held indirectly by an ESPP Trust"

immediate family member financial

"Some Common Shares are held indirectly by an immediate family member"

Form 4 Insider Transactions: What Each Field Means →

04/29/2026 - 06:06 AM

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)
04/28/2026

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)								9,051	D
American Depositary Shares (TSM)⁽¹⁾	04/28/2026		P	V	10	A	$386	80	D
American Depositary Shares (TSM)⁽¹⁾	04/28/2026		P	V	5	A	$390	85	D
American Depositary Shares (TSM)⁽¹⁾	04/28/2026		P	V	5	A	$390	90	D
Common Shares (2330.TW)								101⁽²⁾	I	By ESPP Trust
Common Shares (2330.TW)								53	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)
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. Each American Depositary Share represents five (5) Common Shares.

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

Remarks:

	/s/ Jen-Chau Huang, as attorney-in-fact	04/29/2026
	** 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

FAQ

What insider transaction did TSM VP Bor-Zen Tien report on this Form 4 for TSM?

Bor-Zen Tien reported buying 20 American Depositary Shares of TSM in open-market transactions. The ADS purchases occurred on April 28, 2026, at prices of 390.0000 and 386.0000 per ADS, according to the Form 4 data provided.

At what prices did the TSM VP purchase American Depositary Shares (TSM ADS)?

The VP bought TSM American Depositary Shares at 390.0000 and 386.0000 per ADS. These were open-market purchases, with multiple trades on April 28, 2026, totaling 20 ADS acquired in the reported transactions.

How many American Depositary Shares of TSM does Bor-Zen Tien hold after the reported trades?

After the reported purchases, Bor-Zen Tien directly holds 80 American Depositary Shares of TSM. This figure comes from the Form 4 totals following the April 28, 2026 open-market ADS transactions disclosed in the filing.

How many TSM common shares does Bor-Zen Tien own directly according to this Form 4?

The Form 4 shows Bor-Zen Tien directly holding 9,051 Common Shares of Taiwan Semiconductor Manufacturing Co. These Common Shares are separate from his American Depositary Share holdings and are reported as direct ownership in the filing.