What does each Silicon Motion (SIMO) American depositary share represent?

Each Silicon Motion American depositary share (ADS) represents four ordinary shares of the company with a par value of US$0.01 per share. ADSs allow investors to trade foreign ordinary shares more easily in U.S. markets through this bundled structure.

Silicon Motion director sells 3,000 ADS

Q: What insider transaction did Silicon Motion (SIMO) disclose in this Form 4?

Silicon Motion disclosed that director Lin Kuan-Ming sold 3,000 American depositary shares (ADS) in open-market transactions. These trades were reported as non-derivative sales of existing ADS, not option exercises or derivative conversions.

Q: How many Silicon Motion (SIMO) shares did the director sell and at what prices?

The director sold 3,000 ADS in total. This included 1,000 ADS at $300.00, 1,000 ADS at $310.01, and 1,000 ADS at $320.31 per ADS in open-market sales on June 17–18.

Q: On what dates did Silicon Motion (SIMO) director Lin Kuan-Ming sell ADS?

The reported sales occurred on June 17 and June 18. Two 1,000-ADS blocks were sold on June 17 at $300.00 and $310.01 per ADS, and another 1,000 ADS were sold on June 18 at $320.31 per ADS.

Q: How many Silicon Motion (SIMO) ADS does the director hold after these transactions?

Following the reported sales, director Lin Kuan-Ming directly holds 7,500 American depositary shares. This figure reflects his position immediately after the final transaction disclosed in the Form 4 and represents his remaining directly owned ADS stake.

Q: Were the Silicon Motion (SIMO) director’s transactions open-market sales?

Yes. Each transaction is coded “S” and described as an open-market sale. The Form 4 classifies them as non-derivative transactions involving American depositary shares, meaning the director sold already-held ADS rather than exercising options or converting derivatives.

Silicon Motion Technology CORP director Lin Kuan-Ming sold 3,000 American depositary shares in open-market trades.

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Rhea-AI Filing Summary

Silicon Motion Technology CORP director Lin Kuan-Ming sold 3,000 American depositary shares in open-market trades. The sales occurred on June 17–18, with 1,000 ADS sold at $300.00, 1,000 at $310.01, and 1,000 at $320.31 per ADS. After these transactions, Lin directly holds 7,500 ADS, each representing four ordinary shares of the company.

Insider Trade Summary

Net Seller: 3,000 shares

Net Sell 3 txns

Insider LIN KUAN-MING

Role Director

Sold 3,000 shs ($930K)

Type	Security	Shares	Price	Value
Sale	American depositary shares	1,000	$320.31	$320K
Sale	American depositary shares	1,000	$300.00	$300K
Sale	American depositary shares	1,000	$310.01	$310K

Holdings After Transaction: American depositary shares — 7,500 shares (Direct)

Footnotes (2)

F1. Each American depositary share ("ADS") represents four ordinary shares, US$0.01 par value per share, of Silicon Motion Technology Corp. (the "Issuer").
F2. The price reported in Column 4 is a weighted average price per ADS. These ADSs were sold in multiple transactions at prices ranging from $310.00 to $310.09 per ADS, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of ADSs sold at each separate price within the ranges set forth in this footnote.

Key Figures

Total ADS sold: 3,000 ADS Sale price 1: $300.00 per ADS Sale price 2: $310.01 per ADS +3 more

6 metrics

Total ADS sold 3,000 ADS Non-derivative open-market sales reported on Form 4

Sale price 1 $300.00 per ADS 1,000 ADS sold on June 17

Sale price 2 $310.01 per ADS 1,000 ADS sold on June 17

Sale price 3 $320.31 per ADS 1,000 ADS sold on June 18

Holdings after transactions 7,500 ADS Directly owned by director after final sale

ADS to ordinary share ratio 1 ADS = 4 ordinary shares Each ADS represents four Silicon Motion ordinary shares

Key Terms

American depositary shares, open-market sale, weighted average price, ordinary shares

4 terms

American depositary shares financial

"Each American depositary share ("ADS") 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.

open-market sale financial

"transaction_action: "open-market sale" for each ADS transaction"

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

weighted average price financial

"The price reported in Column 4 is a weighted average price per ADS."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

ordinary shares financial

"represents four ordinary shares, US$0.01 par value per share"

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.

FAQ

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

What insider transaction did Silicon Motion (SIMO) disclose in this Form 4?

Silicon Motion disclosed that director Lin Kuan-Ming sold 3,000 American depositary shares (ADS) in open-market transactions. These trades were reported as non-derivative sales of existing ADS, not option exercises or derivative conversions.

How many Silicon Motion (SIMO) shares did the director sell and at what prices?

The director sold 3,000 ADS in total. This included 1,000 ADS at $300.00, 1,000 ADS at $310.01, and 1,000 ADS at $320.31 per ADS in open-market sales on June 17–18.

On what dates did Silicon Motion (SIMO) director Lin Kuan-Ming sell ADS?

The reported sales occurred on June 17 and June 18. Two 1,000-ADS blocks were sold on June 17 at $300.00 and $310.01 per ADS, and another 1,000 ADS were sold on June 18 at $320.31 per ADS.

How many Silicon Motion (SIMO) ADS does the director hold after these transactions?

Following the reported sales, director Lin Kuan-Ming directly holds 7,500 American depositary shares. This figure reflects his position immediately after the final transaction disclosed in the Form 4 and represents his remaining directly owned ADS stake.

Were the Silicon Motion (SIMO) director’s transactions open-market sales?

Yes. Each transaction is coded “S” and described as an open-market sale. The Form 4 classifies them as non-derivative transactions involving American depositary shares, meaning the director sold already-held ADS rather than exercising options or converting derivatives.

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Accepted by SEC EDGAR 06/24/2026 - 10:28 AM EDT

SEC Form 4

FORM 4

UNITED 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^*

LIN KUAN-MING

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

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

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/17/2026

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

X	Form 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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
American depositary shares⁽¹⁾	06/17/2026		S		1,000	D	$300	9,500	D
American depositary shares⁽¹⁾	06/17/2026		S		1,000	D	$310.01⁽²⁾	8,500	D
American depositary shares⁽¹⁾	06/18/2026		S		1,000	D	$320.31	7,500	D

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. Each American depositary share ("ADS") represents four ordinary shares, US$0.01 par value per share, of Silicon Motion Technology Corp. (the "Issuer").

2. The price reported in Column 4 is a weighted average price per ADS. These ADSs were sold in multiple transactions at prices ranging from $310.00 to $310.09 per ADS, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the U.S. Securities and Exchange Commission, upon request, full information regarding the number of ADSs sold at each separate price within the ranges set forth in this footnote.

	/s/ Kuan-Ming Lin	06/24/2026
	** 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 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)

Source: View Original Filing on SEC EDGAR