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

TAIWAN SEMICONDUCTOR (TSM) CEO adds ESPP shares, reports over 8.4M total holdings

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

Rhea-AI Filing Summary

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD director and Chairman and CEO Che-Chia Wei reported a purchase of 152 Common Shares (2330.TW) on 2026-08-07. The shares were bought on his behalf under the issuer's Employee Stock Purchase Plan ("ESPP") at $73.31 per share, held indirectly by an ESPP trust, bringing that ESPP-related position to 17,987 shares. On the same date he also reported 7,452,349 Common Shares held directly, 285,245 shares held indirectly by an LTI trust, and 700,261 shares held indirectly by his spouse.

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Insider Wei Che-Chia
Role Chairman and CEO
Bought 152 shs ($11K)
Type Security Shares Price Value
Purchase Common Shares (2330.TW) F1, F2, F3 152 $73.31 $11K
holding Common Shares (2330.TW) -- -- --
holding Common Shares (2330.TW) F4 -- -- --
holding Common Shares (2330.TW) -- -- --
Holdings After Transaction: Common Shares (2330.TW) — 17,987 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$2,367.1117 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 152 Common Shares (2330.TW) ESPP purchase on 2026-08-07 held indirectly by ESPP trust
Purchase price per share $73.31 per share Translated from NT$2,367.1117 at NT$32.288 to US$1 under ESPP
ESPP trust holdings after transaction 17,987 shares Common Shares purchased and held under the issuer's ESPP
Directly held shares 7,452,349 shares Common Shares held directly by Che-Chia Wei as of 2026-08-07
LTI trust indirect holdings 285,245 shares Common Shares held by a trust under the Long-Term Incentive Bonus Plan
Spouse indirect holdings 700,261 shares Common Shares held indirectly by spouse
NT dollar purchase price NT$2,367.1117 per share Average ESPP purchase price before translation at NT$32.288 to US$1
Employee Stock Purchase Plan ("ESPP") financial
"Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP")."
ESPP Trust financial
"Common Shares purchased by the administrator of the issuer's Employee Stock Purchase Plan ("ESPP") on behalf of the filer"
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 ownership financial
"total_shares_following_transaction 17987.0000, direct_or_indirect I, nature_of_ownership By ESPP Trust"

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FAQ

What did TSM Chairman and CEO Che-Chia Wei report on this Form 4?
Che-Chia Wei reported a purchase of 152 TSM Common Shares on 2026-08-07, acquired under the company’s Employee Stock Purchase Plan (ESPP) and held indirectly by an ESPP trust, at a price of $73.31 per share.

What price did Che-Chia Wei effectively pay per TSM share in this transaction?
The reported per-share price is $73.31. This price was translated from an average purchase price of NT$2,367.1117 per share, using an exchange rate of NT$32.288 to US$1, as disclosed in the filing’s footnotes.

How many TSM shares does Che-Chia Wei hold through the ESPP trust after this trade?
Following the reported ESPP purchase, the ESPP trust holds 17,987 TSM Common Shares on behalf of Che-Chia Wei. These shares were purchased and are held under the issuer’s Employee Stock Purchase Plan ("ESPP"), according to the filing’s footnotes.

What are Che-Chia Wei’s directly held TSM share holdings as of this Form 4?
As of the reported date, Che-Chia Wei directly holds 7,452,349 TSM Common Shares. This direct position is reported separately from his indirect holdings through the ESPP trust, the LTI trust, and shares held by his spouse.

What indirect TSM shareholdings, besides the ESPP trust, does Che-Chia Wei report?
In addition to the ESPP trust, Che-Chia Wei reports 285,245 TSM shares held indirectly by an LTI trust and 700,261 shares held indirectly by his spouse. The LTI trust position reflects purchases using cash from the Long-Term Incentive Bonus Plan.

Was this TSM share purchase under a Rule 10b5-1 trading plan?
The filing indicates the Rule 10b5-1 checkbox is not affirmed. However, the shares were purchased by the ESPP administrator under predetermined plan terms, reflecting automatic acquisition mechanics of the Employee Stock Purchase Plan 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*
Wei Che-Chia
(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)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
Chairman and CEO
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)7,452,349D
Common Shares (2330.TW)08/07/2026(1)P152A$73.31(2)17,987(3)IBy ESPP Trust
Common Shares (2330.TW)285,245(4)IBy LTI Trust
Common Shares (2330.TW)700,261IBy 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)
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