MONOLITHIC POWER SYSTEMS, INC.
For the period ended Jun 30, 2026. Filed Aug 5, 2026.
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Jun 30, 2026 · Filed Aug 5, 2026
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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 thetermination 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, orterminated.
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