STOCK TITAN

TSM (NYSE: TSM) VP adds small ESPP purchase to 1.8M-share stake

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

Rhea-AI Filing Summary

Taiwan Semiconductor Manufacturing Co. (TSM) vice president Yoo Chue-San reported a small open-market purchase of common shares through the company’s Employee Stock Purchase Plan. On the transaction date, 65 common shares (2330.TW) were bought at $57.87 per share by the ESPP administrator on the filer’s behalf under predetermined plan terms.

Following this transaction, indirect holdings through the ESPP trust totaled 6,431 shares1,797,614 common shares

Positive

  • None.

Negative

  • None.
Insider Yoo Chue-San
Role VP
Bought 65 shs ($4K)
Type Security Shares Price Value
Purchase Common Shares (2330.TW) 65 $57.87 $4K
holding Common Shares (2330.TW) -- -- --
holding Common Shares (2330.TW) -- -- --
holding Common Shares (2330.TW) -- -- --
holding Common Shares (2330.TW) -- -- --
Holdings After Transaction: Common Shares (2330.TW) — 6,431 shares (Indirect, By ESPP Trust); Common Shares (2330.TW) — 1,797,614 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"). 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 65 shares Common Shares (2330.TW) bought via ESPP administrator
Purchase price $57.87 per share Average price for 65-share ESPP purchase
Direct holdings after 1,797,614 shares Common Shares held directly after reported activity
ESPP trust holdings after 6,431 shares Common Shares held indirectly via ESPP trust
LTI trust holdings after 7,036 shares Common Shares held indirectly via LTI trust
Spouse holdings after 219,924 shares Common Shares held indirectly via spouse
Yuding Investment holdings after 851,908 shares Common Shares held indirectly via Yuding Investment Co., Ltd.
Net share direction 65-share net buy transactionSummary netBuySellShares and netBuySellDirection
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
"direct_or_indirect: "I", nature_of_ownership: "By ESPP Trust""
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
"ownership_type: "indirect", ownership_code: "I" for multiple trust and spouse holdings"
open-market purchase financial
"transaction_action: "open-market purchase" for the 65-share ESPP 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.
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*
Yoo Chue-San

(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)
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)1,797,614D
Common Shares (2330.TW)04/09/2026(1)PV65A$57.87(2)6,431(3)IBy ESPP Trust
Common Shares (2330.TW)7,036(4)IBy LTI Trust
Common Shares (2330.TW)219,924IBy Spouse
Common Shares (2330.TW)851,908IBy Yuding Investment 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").
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-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)

FAQ

What insider transaction did TSM VP Yoo Chue-San report?

TSM vice president Yoo Chue-San reported buying 65 common shares via the Employee Stock Purchase Plan. The ESPP administrator executed the purchase under predetermined terms, making this a routine, plan-based acquisition rather than a discretionary open-market trade.

At what price were the TSM shares purchased in this Form 4 filing?

The 65 TSM common shares were purchased at an average price of $57.87 per share. A footnote explains this was translated from an average purchase price of NT$1,837.2789 using an exchange rate of NT$31.748 to US$1.

How many TSM shares does Yoo Chue-San hold directly after this transaction?

After the reported activity, Yoo Chue-San’s direct holdings are 1,797,614 TSM common shares. This direct position is separate from additional indirect holdings through the ESPP trust, an LTI trust, the filer’s spouse, and Yuding Investment Co., Ltd.

What indirect TSM holdings are reported for Yoo Chue-San in this Form 4?

Indirectly, the filing shows 6,431 shares via the ESPP trust, 7,036 shares via an LTI trust, 219,924 shares via the filer’s spouse, and 851,908 shares via Yuding Investment Co., Ltd., reflecting multiple vehicles through which ownership in TSM is held.

Was the TSM share purchase by Yoo Chue-San discretionary or plan-based?

The purchase was plan-based. A footnote states the ESPP administrator bought the common shares on behalf of the filer under the issuer’s Employee Stock Purchase Plan, following terms predetermined by the company rather than a discretionary trade.

Does this TSM Form 4 show any derivative securities activity?

No derivative securities transactions are shown. The derivativeSummary section is empty, and the transactionSummary lists zero exercises and derivative transactions, indicating only common share activity is reported in this Form 4 for TSM.