STOCK TITAN

Taiwan Semiconductor (NYSE: TSM) VP adds ADS and common shares

(Neutral)
(Positive)
Form Type
4

Rhea-AI Filing Summary

Tien Bor-Zen, a vice president of Taiwan Semiconductor Manufacturing, reported multiple stock purchases on July 28, 2026. He bought 15 American Depositary Shares at $390 each and 1,000 common shares at $67.9700 per share. After these trades he reported 13,051 common shares held directly, plus indirect family holdings through a spouse, an ESPP trust, and an immediate family member. These purchases were not marked as made under a Rule 10b5-1 trading plan.

Positive

  • None.

Negative

  • None.
Insider Tien Bor-Zen
Role VP
Bought 1,015 shs ($74K)
Type Security Shares Price Value
Purchase American Depositary Shares (TSM) F1 10 $390.00 $4K
Purchase American Depositary Shares (TSM) F1 5 $390.00 $2K
Purchase Common Shares (2330.TW) F3 1,000 $67.97 $68K
holding Common Shares (2330.TW) -- -- --
holding Common Shares (2330.TW) F2 -- -- --
holding Common Shares (2330.TW) -- -- --
Holdings After Transaction: American Depositary Shares (TSM) — 132 shares (Direct); Common Shares (2330.TW) — 5,000 shares (Indirect, By Spouse); Common Shares (2330.TW) — 13,051 shares (Direct); Common Shares (2330.TW) — 228 shares (Indirect, By ESPP Trust); Common Shares (2330.TW) — 73 shares (Indirect, By Immediate Family Member)
Footnotes (3)
  1. F1. Each American Depositary Share represents five (5) Common Shares.
  2. F2. Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP").
  3. F3. The price was translated from New Taiwan dollars, NT$2,200, at the rate of NT$32.366 to US$1.
ADS purchased 10 American Depositary Shares Direct purchase of ADS on July 28, 2026 at $390.0000 per share
Additional ADS purchased 5 American Depositary Shares Second direct ADS purchase on July 28, 2026 at $390.0000 per share
Common shares purchased 1,000 Common Shares Indirect purchase by spouse on July 28, 2026 at $67.9700 per share
Spouse holdings after transaction 5,000 Common Shares Total common shares held indirectly by spouse following the purchase
Direct common share holdings 13,051 Common Shares Direct ownership position reported as of July 28, 2026
ESPP trust holdings 228 Common Shares Indirect holdings through an ESPP Trust after the reported date
Immediate family holdings 73 Common Shares Indirect common shares held by an immediate family member
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.
Employee Stock Purchase Plan financial
"Common Shares purchased and held under 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
"Indirect ownership reported as By ESPP Trust for certain common shares."

AI-generated analysis. How Rhea-AI works. Not financial advice.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google
Add on Google
Learn about SEC filing dates

FAQ

What insider transactions did Tien Bor-Zen report for TSM on July 28, 2026?

Tien Bor-Zen reported purchasing 15 American Depositary Shares at $390 each and 1,000 common shares at $67.9700 per share on July 28, 2026. These were reported as open-market or private purchase transactions, increasing his and related parties’ equity exposure to Taiwan Semiconductor.

At what prices did the TSM insider buy ADS and common shares?

The insider bought American Depositary Shares at $390 per ADS and common shares at $67.9700 per share. The common share price reflects a translation from NT$2,200 using an exchange rate of NT$32.366 to US$1, according to the transaction footnote.

How many Taiwan Semiconductor (TSM) shares does Tien Bor-Zen hold directly after these trades?

After the reported trades, Tien Bor-Zen directly holds 13,051 common shares of Taiwan Semiconductor. This figure reflects only his direct ownership of common shares and does not include his ADS positions or any indirect holdings through family members or trusts.

Were the reported TSM insider purchases by Tien Bor-Zen under a Rule 10b5-1 plan?

The trades were not marked as made under a Rule 10b5-1 trading plan. The filing’s Rule 10b5-1 checkbox was left unchecked, indicating the reported purchases were not designated as executed pursuant to a pre-arranged trading plan.

How do Taiwan Semiconductor (TSM) ADS relate to common shares in this insider report?

Each American Depositary Share represents five common shares of Taiwan Semiconductor. The insider’s purchase of 15 ADS therefore corresponds economically to 75 underlying common shares, though ADS and common shares are distinct securities and are reported separately.
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*
Tien Bor-Zen

(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)
07/28/2026
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)13,051D
American Depositary Shares (TSM)(1)07/28/2026PV10A$390127D
American Depositary Shares (TSM)(1)07/28/2026PV5A$390132D
Common Shares (2330.TW)228(2)IBy ESPP Trust
Common Shares (2330.TW)07/28/2026P1,000A$67.97(3)5,000IBy Spouse
Common Shares (2330.TW)73IBy Immediate Family Member
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. Common Shares purchased and held under the issuer's Employee Stock Purchase Plan ("ESPP").
3. The price was translated from New Taiwan dollars, NT$2,200, at the rate of NT$32.366 to US$1.
Remarks:
/s/ Jen-Chau Huang, as attorney-in-fact07/30/2026
** 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)