Silicon Motion CFO reports initial ADS holdings

Silicon Motion Technology Corp CFO Tsai Po Hung filed an initial Form 3 showing ownership of American depositary shares.

Rhea-AI Filing Summary

Silicon Motion Technology Corp CFO Tsai Po Hung filed an initial Form 3 showing ownership of American depositary shares. The filing reports 46,350 ADS held indirectly through the Tsai Family Living Trust and 1,900 ADS held directly. Each ADS represents four ordinary shares, and the CFO disclaims beneficial ownership of trust-held shares beyond his economic interest.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider TSAI PO HUNG

Role CFO

Type	Security	Shares	Price	Value
holding	American depositary shares	--	--	--
holding	American depositary shares	--	--	--

Holdings After Transaction: American depositary shares — 46,350 shares (Indirect, By Tsai Family Living Trust Dated 10/09/2007); American depositary shares — 1,900 shares (Direct)

Footnotes (2)

1. F1. Each American depositary share, represents four ordinary shares, US$0.01 par value per share, of Silicon Motion Technology Corp.
2. F2. These securities are held by the Tsai Family Living Trust Dated 10/09/2007, of which the reporting person and the reporting person's spouse are co-trustees and beneficiaries. The reporting person disclaims beneficial ownership except to the extent of his pecuniary interest therein.

Key Figures

Indirect ADS holdings: 46,350 ADS Direct ADS holdings: 1,900 ADS ADS to ordinary share ratio: 1 ADS = 4 ordinary shares

3 metrics

Indirect ADS holdings 46,350 ADS Held by Tsai Family Living Trust dated 10/09/2007

Direct ADS holdings 1,900 ADS Held directly by reporting person after Form 3

ADS to ordinary share ratio 1 ADS = 4 ordinary shares Representation of Silicon Motion Technology Corp shares

Key Terms

American depositary shares, Tsai Family Living Trust, indirect ownership, pecuniary interest

4 terms

American depositary shares financial

"Each American depositary share, represents four ordinary 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.

Tsai Family Living Trust financial

"These securities are held by the Tsai Family Living Trust Dated 10/09/2007"

indirect ownership financial

"ownership_type": "indirect""

pecuniary interest financial

"disclaims beneficial ownership except to the extent of his pecuniary interest therein"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider holdings does SIMO CFO Tsai Po Hung report on this Form 3?

He reports indirect ownership of 46,350 American depositary shares through the Tsai Family Living Trust and 1,900 ADS held directly. These figures reflect his initial reported position as an officer of Silicon Motion Technology Corp.

How are Silicon Motion Technology (SIMO) shares represented by American depositary shares?

Each American depositary share represents four ordinary shares of Silicon Motion Technology Corp. This means the reported ADS holdings correspond to a larger number of underlying ordinary shares in the company’s home market.

What portion of SIMO shares are held indirectly by the CFO through a trust?

The filing states that 46,350 ADS are held by the Tsai Family Living Trust dated 10/09/2007. The CFO and spouse are co-trustees and beneficiaries, and he disclaims beneficial ownership beyond his pecuniary interest in those shares.

Does the SIMO CFO have direct ownership of American depositary shares?

Yes. In addition to trust holdings, the Form 3 lists 1,900 ADS held directly by the reporting person. This direct position is separate from the larger block held through the Tsai Family Living Trust structure.

Does the SIMO CFO fully own the ADS held by the Tsai Family Living Trust?

No. The filing explains he disclaims beneficial ownership of shares held by the Tsai Family Living Trust, except to the extent of his pecuniary interest as a co-trustee and beneficiary with his spouse.

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

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Accepted by SEC EDGAR 04/09/2026 - 04:09 PM EDT Learn about SEC filing dates

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

OMB APPROVAL

OMB Number:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

TSAI PO HUNG

(Last) (First) (Middle)

C/O SILICON MOTION TECHNOLOGY CORP.

FLAT C, 19/F, WING CHEONG COMMERCIAL BLD

(Street)

HONG KONG ISLAND 00000

(City) (State) (Zip)

HONG KONG

(Country)

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

3. Issuer Name and Ticker or Trading Symbol
Silicon Motion Technology CORP [ SIMO ]

3a. Foreign Trading Symbol

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

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

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

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(1)	46,350	I	By Tsai Family Living Trust Dated 10/09/2007(2)
American depositary shares(1)	1,900	D

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 four ordinary shares, US$0.01 par value per share, of Silicon Motion Technology Corp.

2. These securities are held by the Tsai Family Living Trust Dated 10/09/2007, of which the reporting person and the reporting person's spouse are co-trustees and beneficiaries. The reporting person disclaims beneficial ownership except to the extent of his pecuniary interest therein.

	/s/ Po Hung Tsai	04/08/2026
	** 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)