TSMC (NYSE: TSM) director Michael Splinter reports ADS and trust holdings

Rhea-AI Filing Summary

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD director Michael R. Splinter has filed an initial Form 3 reporting his ownership of American Depositary Shares (ADS) of TSM. Each ADS represents five common shares.

He reports 7,565 ADS held directly, plus 795 ADS held indirectly through his spouse's IRA. Additional indirect holdings are reported through several irrevocable trusts, each at 245 ADS, where he serves as trustee and exercises investing authority over the shares.

SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person^*

SPLINTER MICHAEL R

(Last) (First) (Middle)

NO. 8, LI-HSIN ROAD 6

HSINCHU SCIENCE PARK

(Street)

HSINCHU 300096

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
03/18/2026

3. Issuer Name and Ticker or Trading Symbol
TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD [ TSM ]

3a. Foreign Trading Symbol
[2330.TW]

5. If Amendment, Date of Original Filed (Month/Day/Year)

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
American Depositary Shares (TSM)(1)	7,565	D
American Depositary Shares (TSM)(1)	795	I	By Spouse's IRA
American Depositary Shares (TSM)(1)	245	I	See footnote(2)
American Depositary Shares (TSM)(1)	245	I	See footnote(3)
American Depositary Shares (TSM)(1)	245	I	See footnote(4)
American Depositary Shares (TSM)(1)	245	I	See footnote(5)
American Depositary Shares (TSM)(1)	245	I	See footnote(6)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount 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 Kylie Souria Fenske Irrevocable Trust, for which the reporting person serves as trustee and exercises investing authority over such shares.

3. The shares reported are owned by the Cole David Fenske Irrevocable Trust, for which the reporting person serves as trustee and exercises investing authority over such shares.

4. The shares reported are owned by the Avery Michael Splinter Irrevocable Trust, for which the reporting person serves as trustee and exercises investing authority over such shares

5. The shares reported are owned by the Samantha Lilia Roboostoff Irrevocable Trust, for which the reporting person serves as trustee and exercises investing authority over such shares.

6. The shares reported are owned by the Cash Fenske Irrevocable Trust, for which the reporting person serves as trustee and exercises investing authority over such shares.

Remarks:

Exhibit 24 - Power of Attorney

	/s/ Jen-Chau Huang, as attorney-in-fact	03/18/2026
	** Signature of Reporting Person	Date
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 5 (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 3: SEC 1473 (03-26)

FAQ

What does the TSM Form 3 filed by Michael R. Splinter show?

The Form 3 shows Michael R. Splinter’s initial ownership of TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD American Depositary Shares. It lists his direct holdings, his spouse’s IRA position, and additional indirect holdings through several irrevocable trusts where he serves as trustee with investing authority.

How many TSM American Depositary Shares does Michael R. Splinter hold directly?

Michael R. Splinter reports directly holding 7,565 American Depositary Shares of TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD. This direct position is separate from indirect holdings reported through his spouse’s IRA and multiple irrevocable trusts where he has investing authority over the shares.

What indirect TSM holdings are reported through Michael R. Splinter’s spouse?

The filing reports 795 TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD American Depositary Shares held indirectly through his spouse’s IRA. These shares are identified as indirect ownership, distinct from his direct ADS position and the separate trust holdings for which he serves as trustee.

How are irrevocable trusts involved in Michael R. Splinter’s TSM holdings?

Several irrevocable trusts each hold 245 TSM American Depositary Shares. The filing states that Michael R. Splinter serves as trustee for these trusts and exercises investing authority over the shares reported, indicating indirect beneficial ownership through these trust structures.

What does one TSM American Depositary Share represent in this Form 3?

Each TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD American Depositary Share represents five common shares. This ratio is disclosed in a footnote, clarifying the relationship between the ADS units reported and the underlying common equity of the company represented by each depositary share.

Does the TSM Form 3 indicate any recent buy or sell transactions by Michael R. Splinter?

The Form 3 functions as an initial statement of beneficial ownership and lists holdings rather than specific buy or sell transactions. All entries are coded as holdings, with no transaction codes indicating purchases, sales, gifts, or option exercises in the data provided.