Item 5. Other Information

Certain of our executive officers and directors have entered into trading plans pursuant to Rule 10b5-1(c) of the Securities Exchange Act of 1934, as amended. A trading plan is a written document that pre-establishes the amounts, prices and dates (or formula for determining the amounts, prices and dates) of future purchases or sales of our common stock, including the sale of shares acquired pursuant to the Monolithic Power Systems, Inc. 2004 Employee Stock Purchase Plan, amended and restated, and upon vesting of RSUs.

The following table summarizes the adoption of trading plans intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) during the three months ended June 30, 2026:


Name and Title	Adoption Date	Plan Duration	Intended Sale Amount (in shares)
Deming Xiao, Executive Vice President, Global Operations	May 19, 2026	Through May 19, 2027	Up to 80,000
Michael Hsing, President, Chief Executive Officer and Director	May 29, 2026	Through May 29, 2027	Up to 60,000
Saria Tseng, Executive Vice President, Strategic Corporate Development, General Counsel and Corporate Secretary	May 29, 2026	Through May 29, 2027	Up to 75,409

The following table summarizes the termination of trading plans intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) during the three months ended June 30, 2026:


Name and Title						Termination Date						Original Plan Duration						Intended Sale Amount (in shares)						Sold Amount (in shares)
Deming Xiao, Executive Vice President, Global Operations						May 6, 2026						Through February 19, 2027						Up to 120,000						-

During the three months ended June 30, 2026, no trading plans intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) were modified, and no other written trading arrangements that are not intended to qualify for the Rule 10b5-1(c) affirmative defense were adopted, modified, or terminated.

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