TSM CEO adds 160 shares via employee stock plan

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD Chairman and CEO Che-Chia Wei reported a small indirect share purchase through an employee plan.

Rhea-AI Filing Summary

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD Chairman and CEO Che-Chia Wei reported a small indirect share purchase through an employee plan. An ESPP trust bought 160 Common Shares (2330.TW) on 2026-05-08 at an average price of $71.82 per share in an open-market purchase.

The filing also lists indirect holdings of 700,261 shares held by the spouse and 285,245 shares held by an LTI trust, along with 7,452,349 shares held directly. The ESPP purchase was executed by the plan administrator under predetermined terms and the shares are held under the issuer's Employee Stock Purchase Plan.

Insider Trade Summary

Net Buyer: 160 shares

Net Buy 4 txns

Insider Wei Che-Chia

Role Chairman and CEO

Bought 160 shs ($11K)

Type	Security	Shares	Price	Value
Purchase	Common Shares (2330.TW)	160	$71.82	$11K
holding	Common Shares (2330.TW)	--	--	--
holding	Common Shares (2330.TW)	--	--	--
holding	Common Shares (2330.TW)	--	--	--

Holdings After Transaction: Common Shares (2330.TW) — 17,539 shares (Indirect, By ESPP Trust); Common Shares (2330.TW) — 7,452,349 shares (Direct); Common Shares (2330.TW) — 285,245 shares (Indirect, By LTI Trust); Common Shares (2330.TW) — 700,261 shares (Indirect, By Spouse)

Footnotes (4)

1. F1. 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. F2. 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.
3. F3. Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP").
4. F4. 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: 160 shares ESPP purchase price: $71.82/share ESPP trust holdings: 17,539 shares +5 more

8 metrics

ESPP purchase size 160 shares Common Shares (2330.TW) bought on May 8, 2026

ESPP purchase price $71.82/share Average open-market price for ESPP transaction

ESPP trust holdings 17,539 shares Indirect ownership by ESPP trust following transaction

Spouse indirect holdings 700,261 shares Indirect ownership classified as By Spouse

LTI trust holdings 285,245 shares Indirect ownership classified as By LTI Trust

Direct holdings 7,452,349 shares Common Shares held directly by Che-Chia Wei

NTD price reference NT$2,257.1777 Average purchase price in New Taiwan dollars

FX rate used NT$31.429 = US$1 Exchange rate used to translate ESPP purchase price

Key Terms

Employee Stock Purchase Plan, ESPP, Long-Term Incentive Bonus Plan, indirect ownership, +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 Bonus Plan financial

"Represents Common Shares purchased by a trust with cash received under the issuer's Long-Term Incentive ("LTI") Bonus Plan"

indirect ownership financial

"total_shares_following_transaction 17539.0000 ... ownership_type indirect"

open-market purchase financial

"transaction_action open-market purchase for the ESPP trust 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.

FAQ

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

What insider transaction did TSM Chairman Che-Chia Wei report on this Form 4?

Che-Chia Wei reported an indirect purchase of 160 TSM Common Shares (2330.TW) on May 8, 2026, at $71.82 per share. The shares were acquired through the company’s Employee Stock Purchase Plan and are held by an ESPP trust on his behalf under predetermined plan terms.

How were the 160 TSM shares for Che-Chia Wei acquired and at what price?

The 160 Common Shares were purchased in an open-market transaction at an average price of $71.82 per share. According to the filing, the ESPP administrator bought the shares under Taiwan Semiconductor’s Employee Stock Purchase Plan, following terms that were predetermined by the issuer.

What are Che-Chia Wei’s reported indirect TSM share holdings after the ESPP purchase?

After the reported transactions, indirect holdings include 17,539 shares held by an ESPP trust, 700,261 shares held by his spouse, and 285,245 shares held by a Long-Term Incentive (LTI) bonus plan trust. These are in addition to a larger block of directly held shares disclosed separately.

How many TSM shares does Che-Chia Wei hold directly according to this Form 4?

The filing shows Che-Chia Wei directly holds 7,452,349 Common Shares of Taiwan Semiconductor. This direct ownership figure is reported alongside multiple indirect holdings through his spouse, an LTI trust, and an ESPP trust, providing a consolidated view of his overall equity exposure.

Was Che-Chia Wei’s TSM share purchase discretionary or plan-based?

The purchase was plan-based. Footnotes explain the 160 shares were bought by the Employee Stock Purchase Plan administrator on his behalf under issuer-predetermined terms, and are held within the ESPP. This indicates a structured, programmatic acquisition rather than a purely discretionary open-market trade.

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

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Accepted by SEC EDGAR 05/11/2026 - 07:27 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^*

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)
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)								7,452,349	D
Common Shares (2330.TW)	05/08/2026(1)		P		160	A	$71.82(2)	17,539(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$2,257.1777 in New Taiwan dollars, at the rate of NT$31.429 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	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)