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Ursula Burns (TSM) boosts stake with 1,000 ADS open-market buy

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

Rhea-AI Filing Summary

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD director Ursula M. Burns made an open-market purchase of 1,000 American Depositary Shares (ADS) of TSM at $322.05 per ADS. This increased her direct holdings to 3,000 ADS. A separate indirect position of 617 ADS is held by the Malcolm Bean Irrevocable Trust, for which she serves as investment advisor and exercises investing authority. Each ADS represents five common shares, so the filing shows both a larger personal stake and additional exposure through the trust, with no derivative positions reported.

Positive

  • None.

Negative

  • None.
Insider BURNS URSULA M
Role Director
Bought 1,000 shs ($322K)
Type Security Shares Price Value
Purchase American Depositary Shares (TSM) 1,000 $322.05 $322K
holding American Depositary Shares (TSM) -- -- --
Holdings After Transaction: American Depositary Shares (TSM) — 3,000 shares (Direct); American Depositary Shares (TSM) — 617 shares (Indirect, See footnote)
Footnotes (1)
  1. Each American Depositary Share represents five (5) Common Shares. The shares reported are owned by the Malcolm Bean Irrevocable Trust, for which the reporting person serves as investment advisor and exercises investing authority over such shares.
ADS purchased 1,000 ADS Open-market purchase on March 31, 2026
Purchase price $322.05 per ADS Open-market transaction price
Direct holdings after trade 3,000 ADS Total direct ownership following purchase
Indirect holdings 617 ADS Held by Malcolm Bean Irrevocable Trust
ADS to common ratio 1 ADS = 5 common shares ADS representation per footnote
American Depositary Shares financial
"Each American Depositary Share represents five (5) Common Shares."
American depositary shares (ADSs) are a way for investors in the United States to buy shares of foreign companies without dealing with international markets directly. They represent ownership in a foreign company's stock and are traded on U.S. stock exchanges, making it easier for American investors to buy, sell, and own parts of companies from around the world.
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
"total_shares_following_transaction": "617.0000", "direct_or_indirect": "I""
Malcolm Bean Irrevocable Trust financial
"The shares reported are owned by the Malcolm Bean Irrevocable Trust"
investment advisor financial
"for which the reporting person serves as investment advisor and exercises investing authority"
An investment advisor is a person or firm that provides personalized guidance on buying, selling and managing investments and often oversees client portfolios for a fee. For investors this matters because the advisor shapes risk, costs and long-term returns, and is typically required by law to act in the client’s best interests — think of them as a financial coach or GPS that helps navigate choices and avoid costly detours.
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*
BURNS URSULA M
(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
Officer (give title below)Other (specify below)
2a. Foreign Trading Symbol
[2330.TW]
3. Date of Earliest Transaction (Month/Day/Year)
03/31/2026		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
American Depositary Shares (TSM)(1)03/31/2026P1,000A$322.053,000D
American Depositary Shares (TSM)(1)617ISee footnote(2)
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. Each American Depositary Share represents five (5) Common Shares.
2. The shares reported are owned by the Malcolm Bean Irrevocable Trust, for which the reporting person serves as investment advisor and exercises investing authority over such shares.
Remarks:
/s/ Jen-Chau Huang, as attorney-in-fact04/01/2026
** 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 director Ursula Burns report on this Form 4?

Ursula M. Burns reported an open-market purchase of 1,000 American Depositary Shares of TSM at $322.05 per ADS. The trade occurred on March 31, 2026 and increased her direct ownership position disclosed in the filing.

How many Taiwan Semiconductor (TSM) ADS does Ursula Burns own after this transaction?

After the reported purchase, Ursula Burns directly owns 3,000 American Depositary Shares of TSM. The filing also shows an indirect holding of 617 ADS through the Malcolm Bean Irrevocable Trust, where she acts as investment advisor with investing authority.

At what price did Ursula Burns buy Taiwan Semiconductor (TSM) shares?

She bought 1,000 American Depositary Shares of TSM at $322.05 per ADS in an open-market transaction. This price applies to the ADS, each of which represents five underlying common shares according to the footnote in the filing.

What indirect holdings in TSM does Ursula Burns report through the Malcolm Bean Irrevocable Trust?

The filing lists 617 American Depositary Shares of TSM held indirectly by the Malcolm Bean Irrevocable Trust. Burns serves as investment advisor to this trust and exercises investing authority over these shares, giving her additional economic exposure beyond her direct holdings.

What does each Taiwan Semiconductor (TSM) American Depositary Share represent?

Each American Depositary Share referenced in the filing represents five common shares of Taiwan Semiconductor. This ratio is disclosed in the footnote, helping investors translate ADS positions into the equivalent number of underlying common shares for ownership context.

Does this TSM Form 4 show any option or derivative exercises by Ursula Burns?

The Form 4 does not report any derivative transactions or option exercises. It only shows an open-market purchase of 1,000 American Depositary Shares and a separate line confirming an indirect holding of 617 ADS through the Malcolm Bean Irrevocable Trust.