TSMC VP Yoo buys shares via ESPP plan

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD vice president Chue-San Yoo reported a small purchase of 53 Common Shares (2330.TW) at $76.01 per share.

Rhea-AI Filing Summary

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD vice president Chue-San Yoo reported a small purchase of 53 Common Shares (2330.TW) at $76.01 per share. The shares were bought on June 5, 2026 by the administrator of the company’s Employee Stock Purchase Plan under predetermined terms and are held indirectly through an ESPP trust.

After this transaction, Yoo’s reported holdings include 1,797,614 Common Shares held directly, plus several indirect positions: 851,908 shares through Yuding Investment Co., Ltd., 219,924 shares held by his spouse, 7,036 shares held by an LTI trust, and 6,539 shares held by the ESPP trust. The filing shows a net buy of 53 shares and no reported sales or derivative positions.

Insider Trade Summary

Net Buyer: 53 shares

Net Buy 5 txns

Insider Yoo Chue-San

Role VP

Bought 53 shs ($4K)

Type	Security	Shares	Price	Value
Purchase	Common Shares (2330.TW)	53	$76.01	$4K
holding	Common Shares (2330.TW)	--	--	--
holding	Common Shares (2330.TW)	--	--	--
holding	Common Shares (2330.TW)	--	--	--
holding	Common Shares (2330.TW)	--	--	--

Holdings After Transaction: Common Shares (2330.TW) — 6,539 shares (Indirect, By ESPP Trust); Common Shares (2330.TW) — 1,797,614 shares (Direct); Common Shares (2330.TW) — 7,036 shares (Indirect, By LTI Trust); Common Shares (2330.TW) — 219,924 shares (Indirect, By Spouse); Common Shares (2330.TW) — 851,908 shares (Indirect, By Yuding Investment Co., Ltd.)

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$2,392.5207 in New Taiwan dollars, at the rate of NT$31.475 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: 53 shares Purchase price: $76.01/share Direct holdings: 1,797,614 shares +5 more

8 metrics

ESPP purchase size 53 shares Common Shares bought on June 5, 2026 via ESPP

Purchase price $76.01/share ESPP Common Share purchase price in U.S. dollars

Direct holdings 1,797,614 shares Common Shares held directly after transaction

Yuding Investment holdings 851,908 shares Indirect Common Shares held by Yuding Investment Co., Ltd.

Spouse holdings 219,924 shares Indirect Common Shares held by spouse

LTI Trust holdings 7,036 shares Indirect Common Shares held by LTI Trust

ESPP Trust holdings 6,539 shares Indirect Common Shares held by ESPP Trust after purchase

Net share change 53 shares Net buy in this filing according to transaction summary

Key Terms

Employee Stock Purchase Plan, Long-Term Incentive ("LTI") Bonus Plan, open-market purchase, indirect, +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.

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"

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 financial

""ownership_type": "indirect""

transaction code financial

""transaction_code_description": "Unknown transaction code""

FAQ

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

What insider transaction did TSM VP Chue-San Yoo report?

TSMC vice president Chue-San Yoo reported a small net purchase of 53 Common Shares (2330.TW). The shares were acquired on June 5, 2026 through the company’s Employee Stock Purchase Plan and are held indirectly via an ESPP trust on his behalf.

At what price were the TSM shares purchased in Chue-San Yoo’s Form 4?

The 53 Common Shares were purchased at $76.01 per share. The footnotes explain this price was translated from an average NT$2,392.5207 using an exchange rate of NT$31.475 to US$1, reflecting the local market purchase cost in New Taiwan dollars.

How many TSM shares does Chue-San Yoo hold directly after this filing?

Following the reported transactions, Chue-San Yoo holds 1,797,614 Common Shares directly. This direct position is in addition to several indirect holdings reported through Yuding Investment Co., Ltd., his spouse, an LTI trust, and an ESPP trust associated with incentive plans.

What indirect TSM holdings are reported for Chue-San Yoo and related entities?

Indirectly, the filing reports 851,908 Common Shares held by Yuding Investment Co., Ltd., 219,924 shares held by his spouse, 7,036 shares held by an LTI trust, and 6,539 shares held by an ESPP trust. These positions reflect shares associated with family and incentive-plan related entities.

Was the TSM share purchase by Chue-San Yoo an open-market transaction?

The transaction is coded as an open-market purchase, but the footnotes clarify the Common Shares were bought by the Employee Stock Purchase Plan administrator under predetermined ESPP terms, then held in the ESPP trust, rather than a discretionary direct market trade by Yoo himself.

Does the TSM Form 4 show any derivative positions for Chue-San Yoo?

The derivative section in this Form 4 is empty, indicating no derivative securities, such as options or warrants, are reported in this particular filing. The transactions disclosed relate only to Common Shares and various forms of direct and indirect share ownership.

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

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Accepted by SEC EDGAR 06/09/2026 - 06:57 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^*

Yoo Chue-San

(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)								1,797,614	D
Common Shares (2330.TW)	06/05/2026(1)		P	V	53	A	$76.01(2)	6,539(3)	I	By ESPP Trust
Common Shares (2330.TW)								7,036(4)	I	By LTI Trust
Common Shares (2330.TW)								219,924	I	By Spouse
Common Shares (2330.TW)								851,908	I	By Yuding Investment Co., Ltd.

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$2,392.5207 in New Taiwan dollars, at the rate of NT$31.475 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/ 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)