Monolithic Power Systems EVP Sells $11.7M in Stock

Saria Tseng, the executive vice president, sold nearly 9,000 shares of the semiconductor company's stock.

Apr. 10, 2026 at 5:41pm

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A high-contrast, close-up image of the gears, circuits, and machinery that make up the inner workings of a semiconductor manufacturing facility, conveying the industrial might and technological sophistication behind these companies.The complex inner workings of a semiconductor company like Monolithic Power Systems drive the technology powering our modern world.Kirkland Today

Monolithic Power Systems, Inc. (NASDAQ:MPWR) EVP Saria Tseng sold 8,963 shares of the company's stock in a transaction on April 8th. The stock was sold at an average price of $1,305.22, for a total transaction value of $11,698,686.86. Following the sale, Tseng still directly owns 156,983 shares in the company, valued at $204,897,351.26.

Why it matters

This transaction represents a 5.40% decrease in Tseng's ownership stake in Monolithic Power Systems. Insider sales can provide insight into a company's performance and executive confidence, though the reasons behind the sale are not always clear.

The details

Tseng's sale was executed under a pre-arranged Rule 10b5-1 trading plan. In addition to the April 8th sale, Tseng has made several other recent stock transactions, including selling 7,636 shares on April 6th, 1,400 shares on April 1st, 25,674 shares on March 30th, and 22,875 shares on February 6th.

  • The transaction occurred on Wednesday, April 8th, 2026.
  • Tseng also made other sales on April 6th, April 1st, March 30th, and February 6th of 2026.

The players

Saria Tseng

The executive vice president of Monolithic Power Systems, Inc.

Monolithic Power Systems, Inc.

A fabless semiconductor company that designs and supplies high-performance power management solutions.

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The takeaway

This insider sale by Monolithic Power Systems' EVP highlights the ongoing activity and changes in executive ownership of the company's stock, though the specific reasons behind the transaction are not clear. Investors will likely continue to monitor insider trading activity at the semiconductor firm.