TSMC (NYSE: TSM) CEO adds 186 shares through ESPP while holding millions

Rhea-AI Filing Summary

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD Chairman and CEO Che-Chia Wei reported a small open-market purchase of 186 Common Shares (2330.TW) at $57.87 per share on behalf of an ESPP trust. The shares were bought by the administrator of the company’s Employee Stock Purchase Plan under predetermined terms.

Following this transaction, holdings under the ESPP trust totaled 17,379 Common Shares. Wei also reported 7,452,349 Common Shares held directly, 285,245 Common Shares held through a Long-Term Incentive trust, and 700,261 Common Shares held by his spouse, reflecting substantial overall ownership in the company.

Insider Trade Summary

Net Buyer: 186 shares ($10,764)

Net Buy 4 txns

Insider Wei Che-Chia

Role Chairman and CEO

Bought 186 shs ($11K)

Type	Security	Shares	Price	Value
Purchase	Common Shares (2330.TW)	186	$57.87	$11K
holding	Common Shares (2330.TW)	--	--	--
holding	Common Shares (2330.TW)	--	--	--
holding	Common Shares (2330.TW)	--	--	--

Holdings After Transaction: Common Shares (2330.TW) — 17,379 shares (Indirect, By ESPP Trust); Common Shares (2330.TW) — 7,452,349 shares (Direct)

Footnotes (1)

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. The price was translated from the average purchase price of NT$1,837.2789 in New Taiwan dollars, at the rate of NT$31.748 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

Shares purchased: 186 shares Purchase price: $57.87 per share ESPP trust holdings: 17,379 shares +3 more

6 metrics

Shares purchased 186 shares Open-market ESPP purchase on April 9, 2026

Purchase price $57.87 per share Common Shares (2330.TW) via ESPP

ESPP trust holdings 17,379 shares Total Common Shares under ESPP trust after transaction

Direct holdings 7,452,349 shares Common Shares held directly after reported transactions

LTI trust holdings 285,245 shares Common Shares held via Long-Term Incentive trust

Spousal holdings 700,261 shares Common Shares held by spouse, reported as indirect

Key Terms

Employee Stock Purchase Plan, ESPP Trust, Long-Term Incentive ("LTI") Bonus Plan, open-market purchase, +1 more

5 terms

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.

ESPP Trust financial

"nature_of_ownership": "By ESPP Trust""

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

"cash received under the issuer's Long-Term Incentive ("LTI") Bonus Plan"

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.

indirect ownership financial

"ownership_type": "indirect""

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^*

Wei Che-Chia

(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)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Chairman and CEO

2a. Foreign Trading Symbol
[2330.TW]

3. Date of Earliest Transaction (Month/Day/Year)
04/09/2026

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)								7,452,349	D
Common Shares (2330.TW)	04/09/2026(1)		P		186	A	$57.87(2)	17,379(3)	I	By ESPP Trust
Common Shares (2330.TW)								285,245(4)	I	By LTI Trust
Common Shares (2330.TW)								700,261	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. 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$1,837.2789 in New Taiwan dollars, at the rate of NT$31.748 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	04/13/2026
	** 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 Chairman Che-Chia Wei report?

Che-Chia Wei reported a purchase of 186 TSM Common Shares at $57.87 per share. The shares were acquired on April 9, 2026 through the company’s Employee Stock Purchase Plan, executed by the ESPP administrator under predetermined plan terms.

Was the TSM share purchase by Che-Chia Wei an open-market transaction?

Yes. The filing classifies the 186-share transaction as an open-market purchase at $57.87 per share. However, the footnotes explain it was executed by the Employee Stock Purchase Plan administrator under preset plan terms rather than a discretionary standalone trade.

How many TSM shares does Che-Chia Wei hold directly after this filing?

After the reported transactions, Che-Chia Wei holds 7,452,349 TSM Common Shares directly. This direct position is in addition to various indirect holdings through an Employee Stock Purchase Plan trust, a Long-Term Incentive trust, and shares held by his spouse.

What are Che-Chia Wei’s indirect TSM share holdings reported in this Form 4?

Indirectly, Wei reports 17,379 Common Shares via an ESPP trust, 285,245 shares via a Long-Term Incentive trust, and 700,261 shares held by his spouse. These indirect positions complement his substantial direct holding in Taiwan Semiconductor Manufacturing Co Ltd.

How significant is the 186-share TSM purchase compared to Wei’s total holdings?

The 186-share purchase is very small relative to Wei’s disclosed holdings. He reports more than seven million shares held directly, plus over one million combined indirect shares through trusts and his spouse, making this ESPP-related transaction minor in proportional terms.