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

TAIWAN SEMICONDUCTOR (TSM) CFO logs small ESPP share purchase and large holdings

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

Rhea-AI Filing Summary

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD SVP and CFO Jen-Chau Huang reported a purchase of 29 Common Shares on 2026-08-07 at $73.31 per share, executed by the administrator of the Employee Stock Purchase Plan (ESPP) and held indirectly via an ESPP trust. Following this transaction, reported holdings include 3,553 shares under the ESPP trust, 1,811,543 shares held directly, and 20,190 shares held indirectly through a Long-Term Incentive (LTI) bonus plan trust over which Huang has obtained investment control. The transaction was not reported as made under a Rule 10b5-1 trading plan.

Positive

  • None.

Negative

  • None.
Insider Huang Jen-Chau
Role SVP and CFO
Bought 29 shs ($2K)
Type Security Shares Price Value
Purchase Common Shares (2330.TW) F1, F2, F3 29 $73.31 $2K
holding Common Shares (2330.TW) -- -- --
holding Common Shares (2330.TW) F4 -- -- --
Holdings After Transaction: Common Shares (2330.TW) — 3,553 shares (Indirect, By ESPP Trust); Common Shares (2330.TW) — 1,811,543 shares (Direct); Common Shares (2330.TW) — 20,190 shares (Indirect, By LTI Trust)
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 29 Common Shares Non-derivative purchase on 2026-08-07 via ESPP administrator
Purchase price per share $73.31 Translated from average ESPP price of NT$2,367.1117 using NT$32.288 to US$1
Indirect ESPP holdings 3,553 shares Common Shares purchased and held under the Employee Stock Purchase Plan
Direct holdings after transaction 1,811,543 shares Common Shares held directly by Jen-Chau Huang
Indirect LTI trust holdings 20,190 shares Common Shares purchased by a trust under the Long-Term Incentive Bonus Plan
Average ESPP purchase price NT$2,367.1117 Average purchase price in New Taiwan dollars for ESPP shares
FX rate used NT$32.288 to US$1 Exchange rate used to translate ESPP purchase price into US dollars
Employee Stock Purchase Plan financial
"Common Shares purchased by the administrator of the issuer's Employee Stock Purchase Plan"
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"
indirect ownership financial
"Indirect ownership reported as "By ESPP Trust" and "By LTI Trust" for certain holdings"
investment control financial
"over which the filer has obtained investment control"

FAQ

What insider transaction did TSM CFO Jen-Chau Huang report in this Form 4?
Jen-Chau Huang reported buying 29 Common Shares of TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD on 2026-08-07 at $73.31 per share, via the company’s Employee Stock Purchase Plan (ESPP), with the shares held indirectly through an ESPP trust.

How many TSM shares does CFO Jen-Chau Huang hold after this reported transaction?
After the reported transaction, Jen-Chau Huang holds 1,811,543 Common Shares directly, plus 3,553 shares indirectly via an ESPP trust and 20,190 shares indirectly via an LTI bonus plan trust, as disclosed in the Form 4 holdings entries.

Was the TSM CFO’s August 2026 share purchase under a Rule 10b5-1 plan?
The filing indicates the transaction was not made under a Rule 10b5-1 trading plan. The document-level Rule 10b5-1 checkbox is unchecked, and no footnote describes the purchase as pursuant to any pre-arranged trading plan.

What price did TSM’s CFO pay per share in the reported ESPP purchase?
The reported purchase price was $73.31 per share. A footnote explains this reflects translation from an average purchase price of NT$2,367.1117 using an exchange rate of NT$32.288 to US$1 for the ESPP transaction.

How are the TSM shares from the ESPP and LTI plans held for CFO Jen-Chau Huang?
The 3,553 ESPP shares are held indirectly by an ESPP trust that purchased them on predetermined terms, while 20,190 LTI shares are held by a trust funded through the Long-Term Incentive (LTI) Bonus Plan, over which Huang has obtained investment control.

What does the Form 4 reveal about TSM CFO’s indirect ownership structure?
The Form 4 shows indirect ownership through two vehicles: an ESPP trust holding 3,553 shares purchased under preset plan terms, and an LTI bonus plan trust holding 20,190 shares acquired with LTI plan cash, where Huang has investment control.

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

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Form 4 Insider Transactions: What Each Field Means →
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*
Huang Jen-Chau
(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)
SVP and CFO
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)1,811,543D
Common Shares (2330.TW)08/07/2026(1)P29A$73.31(2)3,553(3)IBy ESPP Trust
Common Shares (2330.TW)20,190(4)IBy LTI 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)
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 Huang08/10/2026
** 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