STOCK TITAN

TSMC (TSM) vice president adds ESPP and incentive plan shares

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

Rhea-AI Filing Summary

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD vice president Tzu-Sou Chuang reported a routine share purchase connected to the company’s employee plans. On July 7, 2026, an administrator for the Employee Stock Purchase Plan bought 45 common shares (2330.TW) on his behalf at $76.62 per share under predetermined plan terms, held indirectly through an ESPP trust.

Following this transaction, his indirect holdings under the ESPP trust increased to 5,759 common shares. He also indirectly holds 7,036 common shares through a Long-Term Incentive bonus plan trust where he has investment control, and directly holds 1,495,165 common shares. All reported positions are in the company’s common shares.

Positive

  • None.

Negative

  • None.
Insider Chuang Tzu-Sou
Role VP
Bought 45 shs ($3K)
Type Security Shares Price Value
Purchase Common Shares (2330.TW) 45 $76.62 $3K
holding Common Shares (2330.TW) -- -- --
holding Common Shares (2330.TW) -- -- --
Holdings After Transaction: Common Shares (2330.TW) — 5,759 shares (Indirect, By ESPP Trust); Common Shares (2330.TW) — 1,495,165 shares (Direct)
Footnotes (1)
  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. The price was translated from the average purchase price of NT$2,462.6361 in New Taiwan dollars, at the rate of NT$32.143 to US$1. Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP"). 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.
ESPP purchase size 45 shares Common Shares (2330.TW) bought on July 7, 2026
Purchase price $76.62 per share Average price for ESPP purchase on July 7, 2026
Indirect ESPP holdings 5,759 shares Total common shares held via ESPP trust after transaction
Indirect LTI trust holdings 7,036 shares Common shares held via Long-Term Incentive bonus plan trust
Direct holdings 1,495,165 shares Common shares held directly after reported transactions
NT dollar purchase price NT$2,462.6361 Average ESPP purchase price translated from New Taiwan dollars
FX rate used NT$32.143 to US$1 Exchange rate applied to translate ESPP purchase price
Employee Stock Purchase Plan financial
"Common Shares purchased by the administrator of the issuer's Employee Stock Purchase Plan ("ESPP") on behalf of the filer"
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.
ESPP trust financial
"Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP")."
Long-Term Incentive 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 5,759.0000, direct_or_indirect I, ownership_type indirect"
open-market purchase financial
"transaction_action open-market purchase, transaction_code_description Purchase in open market or private transaction"
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.
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FAQ

What insider transaction did TSM VP Tzu-Sou Chuang report on this Form 4?

Tzu-Sou Chuang reported a small, plan-based purchase of 45 common shares. The shares were acquired on July 7, 2026 at $76.62 each through the Employee Stock Purchase Plan and are held indirectly via an ESPP trust.

How many Taiwan Semiconductor (TSM) shares did the VP buy and at what price?

The VP was allocated 45 common shares in this transaction at $76.62 per share. The purchase was executed by the Employee Stock Purchase Plan administrator under predetermined plan terms, rather than a discretionary open-market trade.

What are TSM VP Tzu-Sou Chuang’s holdings after the reported transactions?

After the July 7, 2026 reporting, he holds 1,495,165 common shares directly. Indirectly, he holds 5,759 common shares via an ESPP trust and 7,036 common shares through a Long-Term Incentive bonus plan trust where he has investment control.

Was the Taiwan Semiconductor VP’s share purchase pre-planned under an employee program?

Yes. The filing notes the common shares were bought by the Employee Stock Purchase Plan administrator on his behalf. The transaction followed plan terms predetermined by the issuer, making it a routine employee program purchase rather than a discretionary market trade.

How are the TSM shares held by the VP classified between direct and indirect ownership?

The filing shows 1,495,165 common shares held directly in his name. Indirect holdings include 5,759 shares via an ESPP trust and 7,036 shares via an LTI bonus plan trust, reflecting shares controlled through company-sponsored incentive arrangements.

Does the Form 4 show any share sales by the Taiwan Semiconductor VP?

No sales are reported in this Form 4. The transaction summary shows one buy transaction totaling 45 shares, along with two holding entries that simply restate existing direct and indirect positions in common shares without indicating any disposals.
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)
07/07/2026
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)1,495,165D
Common Shares (2330.TW)07/07/2026(1)P45A$76.62(2)5,759(3)IBy ESPP Trust
Common Shares (2330.TW)7,036(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$2,462.6361 in New Taiwan dollars, at the rate of NT$32.143 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-fact07/09/2026
** 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)