TSMC (NYSE: TSM) VP and CIO adds small 49-share ESPP purchase

Rhea-AI Filing Summary

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD VP and CIO Chris Horng-Dar Lin reported an indirect open-market purchase of 49 Common Shares on behalf of an ESPP trust at $71.82 per share on May 8, 2026. These shares were bought by the administrator of the company’s Employee Stock Purchase Plan under predetermined terms.

After this transaction, the filing shows Lin with 5,788 Common Shares held via the ESPP trust, along with additional indirect holdings through a family trust, spouse and a Long-Term Incentive bonus plan trust, plus direct holdings in both Common Shares and American Depositary Shares.

Insights

Equity compensation and insider-trading analyst

Routine ESPP purchase; very small size and largely administrative.

The filing shows Chris Horng-Dar Lin, VP and CIO of TSMC, with a single open-market purchase of 49 Common Shares at $71.82 per share through the Employee Stock Purchase Plan (ESPP) trust on May 8, 2026. ESPP buys are typically automated under preset terms.

Post-transaction, the trust’s position is 5,788 Common Shares, while separate lines list sizable direct and indirect holdings in Common Shares and American Depositary Shares. Relative to these positions, the 49-share purchase is very small, suggesting a routine benefit under compensation programs rather than a thesis-changing insider signal.

Insider Trade Summary

Net Buyer: 49 shares ($3,519)

Net Buy 7 txns

Insider Lin Chris Horng-Dar

Role VP and CIO

Bought 49 shs ($4K)

Type	Security	Shares	Price	Value
Purchase	Common Shares (2330.TW)	49	$71.82	$4K
holding	Common Shares (2330.TW)	--	--	--
holding	American Depositary Shares (TSM)	--	--	--
holding	Common Shares (2330.TW)	--	--	--
holding	Common Shares (2330.TW)	--	--	--
holding	American Depositary Shares (TSM)	--	--	--
holding	American Depositary Shares (TSM)	--	--	--

Holdings After Transaction: Common Shares (2330.TW) — 5,788 shares (Indirect, By ESPP Trust); Common Shares (2330.TW) — 128,184 shares (Direct, null); American Depositary Shares (TSM) — 2,800 shares (Direct, null); American Depositary Shares (TSM) — 3,560 shares (Indirect, By Spouse)

Footnotes (1)

1. Each American Depositary Share represents five (5) Common Shares. 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. 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. Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP"). 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 size: 49 Common Shares Purchase price: $71.82 per share ESPP trust holdings: 5,788 Common Shares +3 more

6 metrics

ESPP purchase size 49 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 holdings 5,788 Common Shares Total held under ESPP after transaction

Direct common share holdings 128,184 Common Shares Direct ownership reported after transaction

Direct ADS holdings 2,800 ADS American Depositary Shares directly held after transaction

ADS to common ratio 1 ADS = 5 Common Shares Stated relationship between ADS and 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.

open-market purchase financial

"transaction_action": "open-market purchase""

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.

Form 4 Insider Transactions: What Each Field Means →

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^*

Lin Chris Horng-Dar

(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 and CIO

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)								128,184	D
American Depositary Shares (TSM)(1)								2,800	D
Common Shares (2330.TW)	05/08/2026(2)		P	V	49	A	$71.82(3)	5,788(4)	I	By ESPP Trust
Common Shares (2330.TW)								7,036(5)	I	By LTI Trust
Common Shares (2330.TW)								15,000	I	By Spouse
American Depositary Shares (TSM)(1)								3,560	I	By Spouse
American Depositary Shares (TSM)(1)								8,460	I	By Family 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)
				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)

FAQ

What insider transaction did TSM VP and CIO Chris Horng-Dar Lin report?

Chris Horng-Dar Lin reported an indirect purchase of 49 Common Shares of TSMC at $71.82 per share. The shares were acquired on May 8, 2026 through the company’s Employee Stock Purchase Plan trust under predetermined terms.

How were the 49 TSMC shares purchased for Chris Horng-Dar Lin?

The 49 Common Shares were bought by the administrator of TSMC’s Employee Stock Purchase Plan (ESPP) on Lin’s behalf. The purchase followed preset ESPP terms, making it a structured compensation-related acquisition rather than a discretionary market trade.

What are Chris Horng-Dar Lin’s ESPP holdings in TSMC after this Form 4?

After the reported transaction, the ESPP trust holds 5,788 Common Shares of TSMC for Chris Horng-Dar Lin. This total includes the newly purchased 49 shares and reflects accumulated positions under the company’s Employee Stock Purchase Plan over time.

Does Chris Horng-Dar Lin hold TSMC shares directly as well as indirectly?

Yes. The Form 4 shows direct holdings of 128,184 Common Shares and 2,800 American Depositary Shares, plus several indirect holdings via a family trust, spouse, an ESPP trust, and a Long-Term Incentive bonus plan trust.

What is the relationship between TSMC’s American Depositary Shares and Common Shares?

A footnote states that each American Depositary Share of TSMC represents five Common Shares. This ratio links U.S.-traded ADS instruments with the underlying Common Shares listed in Taiwan, helping investors relate the two security types.

How was the $71.82 purchase price for TSMC shares on the Form 4 determined?

The filing notes the price was translated from an average purchase price of NT$2,257.1777 using an exchange rate of NT$31.429 to US$1. This conversion produced the reported $71.82 per share figure in U.S. dollars for the Common Shares.