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TSMC VP Chuang receives 8,175 vested shares

VP Tzu-Sou Chuang’s 8,175-share acquisition left him with 1,503,340 shares directly, plus holdings via company trusts.

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

Rhea-AI Filing Summary

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD (TSM) reported that officer Tzu-Sou Chuang, a VP, acquired 8,175 Common Shares on September 1, 2026 as a vested restricted stock award at no cost under the Employee Restricted Stock Awards Rules. After this vesting, Chuang directly holds 1,503,340 Common Shares, and also has indirect holdings of 5,806 shares through an Employee Stock Purchase Plan trust and 7,036 shares through a Long-Term Incentive bonus plan trust over which investment control has been obtained.

Positive

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Negative

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Insider Chuang Tzu-Sou
Role VP
Type Security Shares Price Value
Grant/Award Common Shares (2330.TW) F1 8,175 $0.00 $0.00
holding Common Shares (2330.TW) F2 -- -- --
holding Common Shares (2330.TW) F3 -- -- --
Holdings After Transaction: Common Shares (2330.TW) — 1,503,340 shares (Direct); Common Shares (2330.TW) — 5,806 shares (Indirect, By ESPP Trust); Common Shares (2330.TW) — 7,036 shares (Indirect, By LTI Trust)
Footnotes (3)
  1. F1. Represents Common Shares vested on September 1, 2026 in accordance with the issuer's Employee Restricted Stock Awards Rules.
  2. F2. Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP").
  3. F3. 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.
Restricted shares vested 8,175 Common Shares Vested on September 1, 2026 under Employee Restricted Stock Awards Rules
Direct holdings after transaction 1,503,340 Common Shares Direct ownership of Tzu-Sou Chuang following September 1, 2026 vesting
Indirect ESPP holdings 5,806 Common Shares Held by ESPP Trust under Employee Stock Purchase Plan
Indirect LTI trust holdings 7,036 Common Shares Held by LTI Trust funded by Long-Term Incentive Bonus Plan
Transaction price per share $0.00 per share Reported acquisition price for vested restricted stock on September 1, 2026
Employee Restricted Stock Awards Rules financial
"Represents Common Shares vested on September 1, 2026 in accordance with the issuer's Employee Restricted Stock Awards Rules"
Employee Stock Purchase Plan ("ESPP") financial
"Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP")"
Long-Term Incentive ("LTI") Bonus Plan financial
"purchased by a trust with cash received under the issuer's Long-Term Incentive ("LTI") Bonus Plan"
investment control financial
"over which the filer has obtained investment control"

FAQ

What insider transaction did TSM report for VP Tzu-Sou Chuang on September 1, 2026?
TSM reported that VP Tzu-Sou Chuang acquired 8,175 Common Shares on September 1, 2026 through vesting of restricted stock awards granted under the company’s Employee Restricted Stock Awards Rules, at a reported $0.00 per share as part of equity compensation.

How many TSM shares does VP Tzu-Sou Chuang hold directly after this Form 4 transaction?
After the September 1, 2026 vesting, VP Tzu-Sou Chuang directly holds 1,503,340 Common Shares of TSM. This figure reflects the new vested award of 8,175 shares added to Chuang’s existing directly held position.

What indirect TSM shareholdings are reported for VP Tzu-Sou Chuang?
The filing shows indirect holdings of 5,806 Common Shares held by an ESPP Trust for purchases under the Employee Stock Purchase Plan, and 7,036 Common Shares held by an LTI Trust funded by the Long-Term Incentive Bonus Plan, over which Chuang has investment control.

Was the TSM insider transaction by Tzu-Sou Chuang under a Rule 10b5-1 trading plan?
No. The filing’s Rule 10b5-1 checkbox is not checked, and the footnotes describe the transaction as vesting under Employee Restricted Stock Awards Rules and plan-related holdings, without indicating any Rule 10b5-1 trading plan.

What type of equity award did TSM report vesting for VP Tzu-Sou Chuang?
The company reported vesting of Common Shares under its Employee Restricted Stock Awards Rules. The 8,175 shares reflected in the Form 4 represent restricted stock that vested on September 1, 2026, rather than an open-market purchase.

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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*
Chuang Tzu-Sou
(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)
09/01/2026		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)09/01/2026A8,175(1)A$01,503,340D
Common Shares (2330.TW)5,806(2)IBy ESPP Trust
Common Shares (2330.TW)7,036(3)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. Represents Common Shares vested on September 1, 2026 in accordance with the issuer's Employee Restricted Stock Awards Rules.
2. Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP").
3. 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-fact09/02/2026
** 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