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TSMC (NYSE: TSM) controller adds shares through employee stock plan

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

Rhea-AI Filing Summary

Taiwan Semiconductor Manufacturing controller Chih-Ho Chen reported a small insider purchase of common shares. On April 9, 2026, an administrator for the company’s Employee Stock Purchase Plan bought 40 common shares on his behalf as an open-market purchase at $57.87 per share, under predetermined ESPP terms.

After this transaction, the filing shows 5,367 common shares held directly and additional indirect holdings, including 40 shares via the ESPP trust, 363 shares held by his spouse, and 8,000 shares held by Homewarm Advisory Co., Ltd. These entries describe his reported ownership position as of the transaction date.

Positive

  • None.

Negative

  • None.
Insider Chen Chih-Ho
Role Controller
Bought 40 shs ($2K)
Type Security Shares Price Value
Purchase Common Shares (2330.TW) 40 $57.87 $2K
holding Common Shares (2330.TW) -- -- --
holding Common Shares (2330.TW) -- -- --
holding Common Shares (2330.TW) -- -- --
Holdings After Transaction: Common Shares (2330.TW) — 40 shares (Indirect, By ESPP Trust); Common Shares (2330.TW) — 5,367 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$1,837.2789 in New Taiwan dollars, at the rate of NT$31.748 to US$1. Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP").
Shares purchased 40 shares Open-market ESPP purchase on April 9, 2026
Purchase price $57.87 per share Average price for 40 common shares
Direct holdings after transaction 5,367 shares Common shares held directly after April 9, 2026
Indirect ESPP trust holdings 40 shares Common shares held via ESPP trust
Spouse indirect holdings 363 shares Common shares held by spouse
Homewarm Advisory holdings 8,000 shares Common shares held by Homewarm Advisory Co., Ltd.
NTD purchase price NT$1,837.2789 Average purchase price per share in New Taiwan dollars
Exchange rate used NT$31.748 to US$1 Rate used to translate NTD price to USD
Employee Stock Purchase Plan financial
"Common Shares purchased by the administrator of the issuer's Employee Stock Purchase Plan ("ESPP")"
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
"direct_or_indirect: "I", nature_of_ownership: "By ESPP Trust""
open-market purchase financial
"transaction_action: "open-market purchase""
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.
indirect ownership financial
"ownership_type: "indirect", ownership_code: "I""
average purchase price financial
"The price was translated from the average purchase price of NT$1,837.2789"
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*
Chen Chih-Ho
(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)
Controller
2a. Foreign Trading Symbol
[2330.TW]
3. Date of Earliest Transaction (Month/Day/Year)
04/09/2026		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)5,367D
Common Shares (2330.TW)04/09/2026(1)PV40A$57.87(2)40(3)IBy ESPP Trust
Common Shares (2330.TW)363IBy Spouse
Common Shares (2330.TW)8,000IBy Homewarm Advisory 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$1,837.2789 in New Taiwan dollars, at the rate of NT$31.748 to US$1.
3. Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP").
Remarks:
/s/ Jen-Chau Huang, as attorney-in-fact04/13/2026
** 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

FAQ

What insider transaction did TSM controller Chih-Ho Chen report?

Chen reported a small insider purchase of 40 Taiwan Semiconductor common shares. The shares were bought on April 9, 2026 through the company’s Employee Stock Purchase Plan, as an open-market purchase executed by the plan administrator at a price of $57.87 per share.

How were the TSM shares purchased for Chih-Ho Chen under the ESPP?

The shares were purchased by the administrator of Taiwan Semiconductor’s Employee Stock Purchase Plan. The plan followed predetermined terms set by the issuer, acquiring 40 common shares on Chen’s behalf as an open-market transaction and holding them in an ESPP trust structure.

What price did Chih-Ho Chen effectively pay for the 40 TSM shares?

The filing reports an average purchase price of $57.87 per share for the 40 common shares. This U.S. dollar price was translated from an average cost of NT$1,837.2789 using an exchange rate of NT$31.748 to US$1 disclosed in the footnotes.

What are Chih-Ho Chen’s direct TSM shareholdings after this filing?

After the reported transactions, Chen’s direct holdings total 5,367 Taiwan Semiconductor common shares. This direct position is listed separately from indirect interests through the ESPP trust, his spouse, and Homewarm Advisory Co., Ltd., which together represent additional reported ownership.

What indirect TSM holdings associated with Chih-Ho Chen are disclosed?

The filing lists several indirect positions: 40 shares held via the ESPP trust, 363 shares held by his spouse, and 8,000 shares held by Homewarm Advisory Co., Ltd. These are reported as indirect ownership interests separate from his directly held 5,367 common shares.

Does the Form 4 show any TSM share sales by Chih-Ho Chen?

The Form 4 data show no reported sales; the only transaction coded is a purchase of 40 shares. Other line items describe holdings and ownership types, including direct and indirect positions, rather than additional buy or sell transactions during the reported period.