Silicon Motion director holds 27,800 ADS stake

Silicon Motion Technology Corp director Chen Shiang Feng has filed an initial ownership report showing direct holdings of 27,800 American depositary shares (ADS).

Accepted by SEC EDGAR 03/27/2026 - 04:02 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Silicon Motion Technology Corp director Chen Shiang Feng has filed an initial ownership report showing direct holdings of 27,800 American depositary shares (ADS). Each ADS represents four ordinary shares of the company, so this filing simply establishes his existing equity position without reporting any recent trades.

Insider Trade Summary

Holdings reported, no transactions

Holdings

Insider CHEN SHIANG FENG

Role Director

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

Holdings: American depositary shares — 27,800 shares (Direct)

Footnotes (1)

1. F1. Each American depositary share represents four ordinary shares, US$0.01 par value per share, of Silicon Motion Technology Corp.

FAQ

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

What does the Silicon Motion (SIMO) Form 3 filing by Chen Shiang Feng show?

The Form 3 shows director Chen Shiang Feng directly owns 27,800 American depositary shares of Silicon Motion. It is an initial ownership report, establishing his equity stake rather than disclosing a new purchase or sale of shares.

How many Silicon Motion (SIMO) shares does each ADS in this Form 3 represent?

Each American depositary share reported in the Form 3 represents four ordinary shares of Silicon Motion. This means the 27,800 ADS correspond economically to a larger number of underlying ordinary shares, even though only ADS are listed in the filing.

Is the Silicon Motion (SIMO) Form 3 a buy or sell transaction?

The Form 3 is not a buy or sell transaction. It is an initial ownership statement that records existing holdings of 27,800 American depositary shares by director Chen Shiang Feng, with no new market trade reported in this filing.

Does Chen Shiang Feng hold Silicon Motion (SIMO) ADS directly or indirectly?

The Form 3 indicates direct ownership of the 27,800 American depositary shares. There is no reference to trusts, partnerships, or other entities, so the reported position is held in his own name rather than through an intermediary vehicle.

Why is Silicon Motion (SIMO) filing a Form 3 for Chen Shiang Feng?

A Form 3 is filed when someone becomes an officer, director, or large shareholder subject to insider reporting rules. This filing records Chen Shiang Feng’s initial 27,800 ADS stake as he assumes or formalizes a reporting role at Silicon Motion.

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

Understanding Insider Trading Forms →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

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^*

CHEN SHIANG FENG

(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)

TAIWAN, PROVINCE OF CHINA

(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)

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(1)	27,800	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.

	/s/ Shiang Feng Chen	03/27/2026
	** 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)