Silicon Motion (SIMO) SVP discloses 2,500 ADS ownership in initial Form 3

Rhea-AI Filing Summary

Silicon Motion Technology Corp executive JU Shang-Tzu, SVP of Platform and Strategy, filed an initial Form 3 reporting existing holdings in the company. The filing shows direct ownership of 2,500 American depositary shares (ADS), which represent the insider’s current beneficial stake.

Each ADS represents four ordinary shares of Silicon Motion Technology Corp, according to the disclosure.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider JU SHANG-TZU

Role SVP of Platform and Strategy

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

Holdings After Transaction: American depositary shares — 2,500 shares (Direct)

Footnotes (1)

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Key Figures

Direct ADS holdings: 2,500 American depositary shares ADS to ordinary share ratio: 1 ADS = 4 ordinary shares Economic equivalent ordinary shares: 10,000 ordinary shares

3 metrics

Direct ADS holdings 2,500 American depositary shares Beneficial ownership reported on Form 3

ADS to ordinary share ratio 1 ADS = 4 ordinary shares Representation per American Depositary Share footnote

Economic equivalent ordinary shares 10,000 ordinary shares 2,500 ADS multiplied by four ordinary shares per ADS

Key Terms

American Depositary Share, ordinary shares, par value

3 terms

American Depositary Share financial

"Each American Depositary Share, represents four ordinary shares, US$0.01 par value per share"

An American Depositary Share (ADS) is a U.S.-listed certificate that represents a specified number of shares in a foreign company, held by a custodian bank; it works like a receipt that allows U.S. investors to buy and trade foreign equity on American exchanges without dealing with another country’s markets. Investors care because ADSs make foreign stocks easier to access, improve liquidity and settlement in dollars, and can affect dividend payments, voting rights and regulatory oversight compared with buying the underlying foreign shares directly.

ordinary shares financial

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

Ordinary shares are a type of ownership stake in a company, giving shareholders a right to participate in the company’s profits and decision-making through voting. They are similar to owning a piece of a business, and their value can rise or fall based on the company's performance. Investors buy ordinary shares to potentially earn dividends and benefit from the company's growth over time.

par value financial

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

Par value is the fixed amount printed on a bond or stock that represents its original value when issued. It’s like the face value of a coin or bill—what the issuer promises to pay back or the starting price of a stock—though it often doesn’t change with market prices. It matters because it helps determine certain financial details, like how much the company will pay back at maturity.

Understanding Insider Trading Forms →

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^*

JU SHANG-TZU

(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

(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)
	SVP of Platform and Strategy

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)	2,500	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/ Shang-Tzu Ju	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)

FAQ

What does JU Shang-Tzu’s Form 3 filing for SIMO report?

The Form 3 reports JU Shang-Tzu’s initial beneficial ownership in Silicon Motion Technology Corp (SIMO). It discloses direct holdings of 2,500 American depositary shares, establishing a baseline of the executive’s equity position as of the reported date.

How many Silicon Motion (SIMO) shares does each ADS represent?

Each American depositary share of Silicon Motion Technology Corp represents four ordinary shares. This means the reported 2,500 ADS correspond economically to a larger number of underlying ordinary shares, as defined in the filing’s footnote description.

Is JU Shang-Tzu’s Form 3 for SIMO a buy or sell transaction?

The Form 3 does not report a buy or sell transaction. Instead, it records JU Shang-Tzu’s existing beneficial ownership of 2,500 American depositary shares, serving as an initial disclosure rather than a new market trade.

What role does JU Shang-Tzu hold at Silicon Motion (SIMO)?

JU Shang-Tzu is identified as Senior Vice President of Platform and Strategy at Silicon Motion Technology Corp. The Form 3 links this executive role with direct ownership of 2,500 American depositary shares in the company.

Why is a Form 3 filing important for Silicon Motion (SIMO) investors?

A Form 3 provides the first snapshot of an insider’s beneficial ownership when they become a reporting person. For SIMO, it shows JU Shang-Tzu’s 2,500 ADS position, helping investors understand management’s disclosed equity stake at the outset.