STOCK TITAN

TSMC (NYSE: TSM) controller adds shares through ESPP purchase

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

Rhea-AI Filing Summary

Taiwan Semiconductor Manufacturing Co. Ltd. Controller Chih-Ho Chen reported a small net share increase through an employee program. On May 8, 2026, an ESPP trust associated with Chen bought 34 Common Shares (2330.TW) at $71.82 per share, under predetermined Employee Stock Purchase Plan terms.

After this purchase, the ESPP trust held 74 common shares for Chen. The filing also shows 8,000 common shares held indirectly via Homewarm Advisory Co., Ltd., 363 shares held indirectly by Chen’s spouse, and 5,367 shares held directly.

Positive

  • None.

Negative

  • None.
Insider Chen Chih-Ho
Role Controller
Bought 34 shs ($2K)
Type Security Shares Price Value
Purchase Common Shares (2330.TW) 34 $71.82 $2K
holding Common Shares (2330.TW) -- -- --
holding Common Shares (2330.TW) -- -- --
holding Common Shares (2330.TW) -- -- --
Holdings After Transaction: Common Shares (2330.TW) — 74 shares (Indirect, By ESPP Trust); Common Shares (2330.TW) — 5,367 shares (Direct, null)
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$2,257.1777 in New Taiwan dollars, at the rate of NT$31.429 to US$1. Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP").
ESPP shares purchased 34 shares Common Shares (2330.TW) bought on May 8, 2026
Purchase price <money>$71.82</money> per share ESPP administrator purchase for Chen
ESPP holdings after transaction 74 shares Common Shares held under ESPP for Chen
Indirect holdings via Homewarm Advisory 8,000 shares Common Shares (2330.TW) held indirectly
Indirect spouse holdings 363 shares Common Shares (2330.TW) held by spouse
Direct holdings 5,367 shares Chen’s directly held Common Shares (2330.TW)
Net buy-sell shares 34 shares Net buy direction in this Form 4
FX rate used NT$31.429 to US$1 Translating NT$2,257.1777 average price
Employee Stock Purchase Plan ("ESPP") financial
"Common Shares purchased by the administrator of the issuer's Employee Stock Purchase Plan ("ESPP") on behalf of the filer"
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""
Common Shares (2330.TW) financial
""security_title": "Common Shares (2330.TW)""
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)
05/08/2026
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)05/08/2026(1)PV34A$71.82(2)74(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$2,257.1777 in New Taiwan dollars, at the rate of NT$31.429 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-fact05/11/2026
** 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 Controller Chih-Ho Chen report on this Form 4?

Chen reported a small share purchase through an Employee Stock Purchase Plan. An ESPP trust bought 34 Taiwan Semiconductor common shares (2330.TW) at $71.82 each on May 8, 2026, increasing the ESPP-held position to 74 shares for his benefit.

How many Taiwan Semiconductor (TSM) shares did the ESPP trust hold for Chen after the transaction?

After the reported transaction, the ESPP trust held 74 Taiwan Semiconductor common shares for Chen. This reflects the 34-share ESPP purchase on May 8, 2026, added to previously accumulated holdings within the same employee stock purchase program.

At what price were the Taiwan Semiconductor (TSM) shares purchased under the ESPP?

The ESPP administrator purchased 34 Taiwan Semiconductor common shares at $71.82 per share. The filing notes this U.S. dollar price was translated from an average purchase price of NT$2,257.1777 using an exchange rate of NT$31.429 to US$1.

How many Taiwan Semiconductor (TSM) shares does Chih-Ho Chen hold directly according to this Form 4?

The filing shows Chen directly holds 5,367 Taiwan Semiconductor common shares. Separate entries detail his indirect interests through Homewarm Advisory Co., Ltd., his spouse, and the ESPP trust, which together present a fuller picture of his reported equity exposure.

Was the TSM insider purchase by Chen made under an employee stock plan?

Yes. The common shares were purchased by the administrator of Taiwan Semiconductor’s Employee Stock Purchase Plan. The filing explains the ESPP administrator bought the shares on Chen’s behalf, following terms predetermined by the issuer and held them under the ESPP structure.