Compliance Officer. As used in this Policy, the term refers to the principal legal officer of the Company, or such other officer of the Company as the Board may designate. In the Compliance Officer’s absence, the Chief Financial Officer of the Company (the “CFO”) or other officer of the Company designated by the Compliance Officer will be responsible for administration of this Policy.

Covered Person. As used in this Policy, the term refers to (i) Board Members, (ii) senior management (as defined by the U.S. Securities and Exchange Commission (the “SEC”) in Form 20-F) of the Company, (iii) certain Company employees deemed by the Compliance Officer based on their positions at the Company, and (iv) certain other Company employees that the Company may designate from time to time as “Covered Persons” because of their position, responsibilities, or their actual or potential access to material nonpublic information. “Covered Persons” also includes the immediate family members and Controlled Entities (as defined below) of such Covered Person.

Insider. As used in this Policy, the term “Insider” includes: (i) any Company Personnel; (ii) any immediate family member of Company Personnel; and (iii) Company contractors and consultants (e.g., Company auditors, consultants, or attorneys) who may have access to material nonpublic information relating to the Company.

Immediate Family. As used in this Policy, “immediate family” refers to (i) those family members who live in your household, including a spouse, a child, a child away at college, a stepchild, a grandchild, parents, stepparents, grandparents, siblings and in-laws, and other relatives living in your household, and (ii) any family members who do not live in your household but whose transactions in Company Securities are directed by you or are subject to your influence or control, such as parents or children who consult with you before they trade in Company Securities.

Material. As used in this Policy, “material” information includes any information that would influence a reasonable investor to make an investment decision (buy, sell or hold) regarding Company Securities. Any information that could be expected to affect the price of Company Securities, positively or negatively, is considered material. When in doubt about whether particular nonpublic information is material, you should presume it is material. If you are unsure whether information is material, you should consult the Compliance Officer before making any decision to disclose such information or to trade in or recommend securities to which that information relates. Some examples of “material” information, including but not limited to, are:

Financial performance and projections

Significant proposed or pending mergers and acquisitions, investments, divestitures or sales of assets

Major personnel changes and changes in management

Labor negotiations

Significant strategic and technology agreements

Significant price changes on key products or services

Significant changes in operations

Major marketing changes

Positive or negative developments to the Company in outstanding significant litigations

Substantial contracts not in the ordinary course of business

Actual or threatened significant litigation or inquiry by a governmental or regulatory authority

New equity or debt offerings

Changes in dividend policies

Stock splits and reverse stock splits

Share repurchases

Significant product defects or modifications

New product or project announcements of a significant nature

Impending bankruptcy or financial liquidity problems

The gain or loss of a significant product sale

The gain or loss of a substantial customer or supplier

Any other facts which might cause the Company’s financial results to be substantially affected

Nonpublic. As used in this Policy, information is considered to be “nonpublic” unless and until it has been fully disclosed to the public and sufficient time has passed for the stock market to digest the information. To establish that the information has been disclosed to the public, it must have been disclosed in a widely disseminated manner that makes the information available to investors. Information would be considered public, for example, if it had been published in a widely available newspaper or website, or if it had been disclosed in a filing with the SEC. Information that is not public would include, for example, information available to select individuals or only to Company Personnel. Information will be considered nonpublic until the close of the market on the second trading day after the information was publicly disclosed.

General Policy

Insider Trading Prohibited. No Insider may engage in transactions in Company Securities while in possession of material nonpublic information about the Company, except as otherwise specified in this Policy under the headings “Exceptions” and “Rule 10b5-1 Plans.” This restriction also applies to material nonpublic information relating to any other company with publicly-traded securities, including our customers or suppliers, obtained in the course of employment by or association with the Company.

Tipping Prohibited. No Insider who knows of any material nonpublic information about the Company may communicate that information to (“tip”) any other person, including immediate family members and friends, or otherwise disclose such information without Compliance Officer’s written authorization (including by email).

Trading or Tipping with Respect to Certain Other Issuers Prohibited. No Insider may trade in the securities of another company while in possession of material nonpublic information regarding such company gained through his or her work at Silicon Motion. Additionally, no Insider may trade in the securities of another company while in possession of material nonpublic information regarding Silicon Motion that could potentially affect such other company. No Insider who knows of any such material nonpublic information may communicate that information to, or tip, any other person, including immediate family members and friends, or otherwise disclose such information without Compliance Officer’s written authorization (including by email).

Transactions Subject to this Policy

Exceptions

Employee Stock Purchase Plan. Purchases of Company Securities through periodic, automatic payroll contributions to an employee stock purchase plan (an “ESPP”) established by the Company are exempt from this Policy. However, electing to enroll in an ESPP, making any changes in your elections under an ESPP, and selling any Company Security acquired under an ESPP are subject to trading restrictions under this Policy.

Stock Options. This Policy does not apply to the exercise of stock options granted under the Company’s equity incentive plans when exercised (i) for cash or (ii) through net settlement procedures in which the optionee pays for the options exercise by giving shares back to the Company sufficient to compensate the Company for the exercise price at the shares’ then current market value. In addition, this Policy does not apply to the exercise of a tax withholding right pursuant to which the Company withholds shares of stock to satisfy tax withholding requirements upon the exercise of stock options. This Policy does apply, however, to any sale of stock as part of a broker-assisted cashless exercise of an option, or any other market sale for the purpose of generating the cash needed to pay the exercise price of an option.

401(k) Plan. This Policy does not apply to purchases of Company Securities in the Company’s 401(k) plan resulting from your periodic contribution of money to the plan pursuant to a payroll deduction election. This Policy does apply, however, to certain elections you may make under the 401(k) plan, including (i) an election to increase or decrease the percentage of your periodic contributions that will be allocated to a Company Securities fund; (ii) an election to make an intra-plan transfer of an existing account balance into or out of a Company Securities fund; (iii) an election to borrow money against your 401(k) plan account if the loan will result in a liquidation of some or all of your Company Securities fund balance; and (iv) an election to pre-pay a plan loan if the pre-payment will result in an allocation of loan proceeds to a Company stock fund.

Dividend Reinvestment Plan. This Policy does not apply to purchases of Company Securities under the Company’s dividend reinvestment plan (the “DRIP”) resulting from reinvestment of dividends paid on Company Securities. This Policy does apply, however, to voluntary purchases of Company Securities resulting from additional contributions you choose to make to the DRIP, and to your election to participate in the DRIP or increase your level of participation in the DRIP. This Policy also applies to your sale of any Company Securities purchased pursuant to the DRIP.

Restricted Stock Awards. This Policy does not apply to the vesting of restricted stock, or the exercise of a tax withholding right pursuant to which the Company withholds shares of stock to satisfy tax withholding requirements upon the vesting of restricted stock. This Policy does apply, however, to any market sale of stock in connection with the vesting of restricted stock.

Restricted Stock Units (“RSUs”) and Performance Stock Units (“PSUs”). This Policy does not apply to the vesting of RSUs or PSUs, or the exercise of a tax withholding right pursuant to which the Company withholds shares of stock to satisfy tax withholding requirements upon the vesting of any RSU or PSU. This Policy does apply, however, to any market sale of stock in connection with the vesting of RSUs or PSUs.

Individual Responsibility.

Transactions by Entities that You Influence or Control

Administration of this Policy.

Post-Termination Transactions

Additional Trading Restrictions for Covered Persons

Blackout Periods. All Covered Persons are prohibited from trading in Company Securities during blackout periods as defined below.

Trading Window. Covered Persons are permitted to trade in Company Securities when no blackout period is in effect. Generally, this means that Covered Persons can trade during the period beginning at the close of the market on the second trading day following the date the Company’s financial results are publicly disclosed and ending at the close of the market seven calendar days before the end of each fiscal quarter. However, even during this trading window, a Covered Person who is in possession of any material nonpublic information must not trade, unless such trades are made via an Exempted Transaction or a Rule 10b5-1 Plan (as defined below), in Company Securities until the information has been made publicly available or is no longer material. In addition, the Company may close this trading window if a special blackout is imposed and will re-open the trading window once the Special Blackout Period has ended.

Pre-Clearance Procedures. Because Covered Persons are likely to obtain material nonpublic information on a regular basis, the Company requires all such Covered Persons to refrain from trading, even during a trading window as noted above, without first pre-clearing all transactions in Company Securities. A written request (including by email) for pre-clearance should be submitted to the Compliance Officer at least two trading days in advance of the proposed transaction. When a request for pre-clearance is made, the requestor should carefully consider whether he or she may be aware of any material nonpublic information about the Company and certify in writing (including by email) that he or she is not in possession of material nonpublic information concerning the Company. The requestor must not engage in the transaction unless and until the Compliance Officer provides his or her approval in writing (including by email). If approved by the Compliance Officer, clearance of a transaction is valid only for a five trading day period. The Compliance Officer is under no obligation to approve a transaction submitted for pre-clearance and may determine not to permit the transaction. If a person seeks pre-clearance and permission to engage in the transaction is denied by the Compliance Officer, then the Covered Person should refrain from initiating such transaction in Company Securities and should not inform any other person of the restriction. If the Compliance Officer is or becomes a Covered Person, the CFO will assume the role of Compliance Officer for the purpose of the pre-clearance procedures herein regarding such transactions contemplated by the Compliance Officer.

Exceptions. Blackout periods and pre-clearance procedures do not apply to (i) the Exempted Transactions or (ii) purchases and sales of Company Securities under an approved Rule 10b5-1 Plan, as described herein. With respect to any purchase or sale under a Rule 10b5-1 Plan, the third party effecting transactions on behalf of the Covered Person should be instructed to send duplicate confirmations of all such transactions to the Compliance Officer within one trading day after the transaction.

Rule 10b5-1 Plans

You may not enter into, modify or terminate a Rule 10b5-1 Plan during a blackout period or otherwise while you are aware of material nonpublic information.

For officers (as defined by Exchange Act Rule 16a-1(f) (“Section 16 Officers”) and Board Members, no transaction may take place under a Rule 10b5-1 Plan until the later of (a) 90 days after adoption or modification (as specified in Rule 10b5-1) of the Rule 10b5-1 Plan or (b) two business days following the disclosure of the Company’s financial results in a Form 6-K or Form 20-F for the fiscal quarter in which the Rule 10b5-1 Plan was adopted or modified (as specified in Rule 10b5-1). In any event, the cooling-off period is subject to a maximum of 120 days after adoption or modification of the Rule 10b5-1 Plan.

For persons other than Section 16 Officers and Board Members, no transaction may take place under a Rule 10b5-1 Plan until 30 days following the adoption or modification (as specified in Rule 10b5-1) of a Rule 10b5-1 Plan.

Subject to certain limited exceptions specified in Rule 10b5-1, you may not enter into more than one Rule 10b5-1 Plan at the same time.

Subject to certain limited exceptions specified in Rule 10b5-1, you are limited to only one Rule 10b5-1 Plan designed to effect an open market purchase or sale of the total amount of Company Securities subject to the 10b5-1 Plan as a single transaction in any 12-month period.

You must act in good faith with respect to a Rule 10b5-1 Plan. A Rule 10b5-1 Plan cannot be entered into as part of a plan or scheme to evade the prohibition of Rule 10b-5 of the Exchange Act. Therefore, although modifications to an existing Rule 10b5-1 Plan are not prohibited, a Rule 10b5-1 Plan should be adopted with the intention that it will not be amended or terminated prior to its expiration.

Section 16 Officers and Board Members must include a representation to the Company in their Rule 10b5-1 Plan at the time of adoption or modification of such plan that (i) the person is not aware of material nonpublic information about the Company or Company Securities and (ii) the person is adopting such plan in good faith and not as part of plan or scheme to evade the prohibitions of Rule 10b-5 of the Exchange Act.

Consequences of Violations

Legal Penalties. A person who violates insider trading laws by engaging in transactions in a company’s securities when he or she has material nonpublic information can be sentenced to a substantial jail term and required to pay a criminal penalty of several times the amount of profits gained or losses avoided.

Company-imposed Penalties. Company Personnel who violate this Policy may be subject to disciplinary action by the Company, including dismissal for cause. Any exceptions to this Policy, if permitted, may only be granted by the Compliance Officer and must be provided before any activity contrary to the above requirements takes place.

Expenses Related to a Breach. Neither the Company nor any of its Company Personnel will be liable for the legal or financial consequences of any approval or pre-clearance, refusal to approve or pre-clear or delay in reviewing any requests for approval or pre-clearance of any transaction, Rule 10b5-1 Plan or other request under this Policy.

Section 16 Compliance

Maintaining Confidential Information

Designated Spokespersons

I have read and understand the Insider Trading and Investor Communications Policy (the “Policy”) of Silicon Motion Technology Corporation and its subsidiaries (collectively, the “Company”).

I understand that the Company’s Compliance Officer is available to answer any questions I have regarding the Policy.

Since February 2, 2026, or such shorter period of time that I have been a Company Personnel member, I have complied with the Policy.

I will continue to comply with the Policy for as long as I am subject to the Policy.