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  4. [Form 4] TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD Insider Trading Activity

TAIWAN SEMICONDUCTOR (TSM) VP adds 51 shares under ESPP plan

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD VP Yoo Chue-San reported a purchase of 51 Common Shares (2330.TW) on 2026-08-07 at $73.31 per share. The shares were bought by the administrator of the company’s Employee Stock Purchase Plan ("ESPP") on Yoo’s behalf under terms predetermined by the issuer.

After this ESPP transaction, 6,641 shares are held indirectly through an ESPP trust. Yoo also reports 1,797,614 shares held directly, and additional indirect holdings of 7,036 shares via a Long-Term Incentive ("LTI") bonus plan trust, 219,924 shares held by a spouse, and 851,908 shares held by Yuding Investment Co., Ltd.

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Insider Yoo Chue-San
Role VP
Bought 51 shs ($4K)
Type Security Shares Price Value
Purchase Common Shares (2330.TW) F1, F2, F3 51 $73.31 $4K
holding Common Shares (2330.TW) -- -- --
holding Common Shares (2330.TW) F4 -- -- --
holding Common Shares (2330.TW) -- -- --
holding Common Shares (2330.TW) -- -- --
Holdings After Transaction: Common Shares (2330.TW) — 6,641 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$2,367.1117 in New Taiwan dollars, at the rate of NT$32.288 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.
Shares purchased 51 shares Common Shares bought on 2026-08-07 via ESPP
Purchase price $73.31 per share Average price translated from NT$2,367.1117 at NT$32.288/US$1
ESPP trust holdings 6,641 shares Indirect holdings under the Employee Stock Purchase Plan after transaction
Direct holdings 1,797,614 shares Common Shares held directly by Yoo Chue-San
LTI trust holdings 7,036 shares Indirect holdings by Long-Term Incentive ("LTI") Bonus Plan trust
Spouse holdings 219,924 shares Indirect holdings reported as held by spouse
Yuding Investment holdings 851,908 shares Indirect holdings reported as held by Yuding Investment Co., Ltd.
NT dollar purchase price NT$2,367.1117 Average ESPP purchase price in New Taiwan dollars
Employee Stock Purchase Plan ("ESPP") financial
"Common Shares purchased by the administrator of the issuer's Employee Stock Purchase Plan ("ESPP")"
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"
indirect financial
"total_shares_following_transaction 6641.0000, direct_or_indirect I, nature_of_ownership By ESPP Trust"
exchange rate financial
"at the rate of NT$32.288 to US$1"
Exchange rate is the price of one currency expressed in another—for example, how many euros you receive for one US dollar. It matters to investors because changes in that price alter the reported profits, costs and value of assets for companies and portfolios that operate or hold money across borders; think of it like switching measurement units, where the same item can look bigger or smaller depending on the unit used.

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FAQ

What did TSM VP Yoo Chue-San report in this Form 4 for TSM?
Yoo Chue-San reported a purchase of 51 Common Shares of TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD (TSM) on 2026-08-07 through the company’s Employee Stock Purchase Plan ("ESPP").

At what price were the 51 TSM shares acquired in the ESPP transaction?
The 51 TSM shares were acquired at an average price of $73.31 per share, translated from NT$2,367.1117 using an exchange rate of NT$32.288 to US$1.

How many TSM shares does Yoo Chue-San now hold through the ESPP trust?
Following the reported transaction, 6,641 TSM Common Shares are held indirectly for Yoo Chue-San through the issuer’s Employee Stock Purchase Plan ("ESPP") trust.

What is Yoo Chue-San’s reported direct shareholding in TSM after this filing?
The filing reports a direct holding of 1,797,614 TSM Common Shares for Yoo Chue-San as of 2026-08-07, separate from shares held via trusts or a spouse.

What other indirect TSM shareholdings are reported for Yoo Chue-San?
Beyond the ESPP trust, Yoo Chue-San reports 7,036 shares held by an LTI Bonus Plan trust, 219,924 shares held by a spouse, and 851,908 shares held by Yuding Investment Co., Ltd.

Was the TSM Form 4 transaction by Yoo Chue-San under a Rule 10b5-1 plan?
The Rule 10b5-1 checkbox is not affirmed, but the filing notes the purchase was made under predetermined ESPP terms administered by the company, rather than a discretionary open-market trade.
SEC Form 4
FORM 4UNITED 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)
HSINCHUTAIWAN300096
(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)
Director10% Owner
XOfficer (give title below)Other (specify below)
VP
2a. Foreign Trading Symbol
[2330.TW]
3. Date of Earliest Transaction (Month/Day/Year)
08/07/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Shares (2330.TW)1,797,614D
Common Shares (2330.TW)08/07/2026(1)P51A$73.31(2)6,641(3)IBy ESPP Trust
Common Shares (2330.TW)7,036(4)IBy LTI Trust
Common Shares (2330.TW)219,924IBy Spouse
Common Shares (2330.TW)851,908IBy 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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount 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$2,367.1117 in New Taiwan dollars, at the rate of NT$32.288 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-fact08/10/2026
** Signature of Reporting PersonDate
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