Silicon Motion (SIMO) director sells 2,000 ADS in open market

Filing Impact

(High)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

Silicon Motion Technology CORP director Han-Ping Shieh sold American depositary shares in two June 2026 open-market transactions. He sold 1,000 ADS on June 2, 2026 at $301.2500 per ADS and another 1,000 ADS on June 18, 2026 at $328.0000 per ADS. After these sales, he directly held 6,655.8700 American depositary shares. Each American depositary share represents four ordinary shares of Silicon Motion Technology Corp.

Insider Trade Summary

Net Seller: 2,000 shares ($629,250)

Net Sell 2 txns

Insider SHIEH HAN-PING

Role null

Sold 2,000 shs ($629K)

Type	Security	Shares	Price	Value
Sale	American depositary shares	1,000	$328.00	$328K
Sale	American depositary shares	1,000	$301.25	$301K

Holdings After Transaction: American depositary shares — 6,655.87 shares (Direct, null)

Footnotes (1)

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Key Figures

ADS sold on June 2, 2026: 1,000 ADS at $301.2500 ADS sold on June 18, 2026: 1,000 ADS at $328.0000 Total ADS sold in June 2026: 2,000 ADS +2 more

5 metrics

ADS sold on June 2, 2026 1,000 ADS at $301.2500 Open-market sale, non-derivative transaction code S

ADS sold on June 18, 2026 1,000 ADS at $328.0000 Open-market sale, non-derivative transaction code S

Total ADS sold in June 2026 2,000 ADS transactionSummary sellShares across two transactions

Holdings after last sale 6,655.8700 ADS Direct ownership after June 18, 2026 transaction

ADS to ordinary share ratio 1 ADS = 4 ordinary shares Footnote F1 describing American depositary shares

Key Terms

American depositary shares, open-market sale, par value

3 terms

American depositary shares financial

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

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"

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.

par value financial

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

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.

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Form 4 Insider Transactions: What Each Field Means →

06/24/2026 - 10:31 AM

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^*

SHIEH HAN-PING

(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)
06/02/2026

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⁾	06/02/2026		S		1,000	D	$301.25	7,655.87	D
American depositary shares⁽¹⁾	06/18/2026		S		1,000	D	$328	6,655.87	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 represents four ordinary shares, US$0.01 par value per share, of Silicon Motion Technology Corp.

	/s/ Han-Ping Shieh	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

FAQ

What insider transactions did Silicon Motion (SIMO) report for Han-Ping Shieh?

Director Han-Ping Shieh reported two open-market sales of American depositary shares. He sold 1,000 ADS on June 2, 2026 at $301.2500 and 1,000 ADS on June 18, 2026 at $328.0000, for a total of 2,000 ADS sold in June.

At what prices did Silicon Motion (SIMO) director Han-Ping Shieh sell ADS?

Han-Ping Shieh sold ADS at two different prices in June 2026. He sold 1,000 American depositary shares at $301.2500 per ADS on June 2, and another 1,000 ADS at $328.0000 per ADS on June 18 in open-market transactions.

How many Silicon Motion (SIMO) ADS does Han-Ping Shieh hold after these sales?

After the June 2026 sales, Han-Ping Shieh holds 6,655.8700 ADS. The Form 4 shows his direct holdings in American depositary shares following the last reported transaction on June 18, 2026, reflecting his remaining equity exposure in the company.

What do Silicon Motion (SIMO) American depositary shares represent?

Each Silicon Motion American depositary share represents four ordinary shares. The footnote explains that one ADS corresponds to four ordinary shares with US$0.01 par value each, giving investors indirect ownership of the company’s underlying ordinary shares through ADS.

Were the June 2026 Silicon Motion (SIMO) insider transactions buys or sells?

The June 2026 insider transactions by Han-Ping Shieh were sales. Both reported Form 4 entries use transaction code “S” and describe open-market sales of American depositary shares, totaling 2,000 ADS sold across two separate trading dates.