Monolithic Power Systems EVP Sells Over $8.9 Million in Stock

Saria Tseng, the executive vice president, reduced her stake in the semiconductor company by 4.4%.

Apr. 8, 2026 at 6:20pm

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An extreme close-up of complex, interlocking metal gears and machinery in shades of silver, steel, and black, conveying the sophisticated financial infrastructure and technological prowess of a leading semiconductor company.An insider's view of the powerful, high-tech machinery driving Monolithic Power Systems' semiconductor business.Kirkland Today

Saria Tseng, the executive vice president of Monolithic Power Systems, Inc. (NASDAQ:MPWR), sold 7,636 shares of the company's stock on Monday, April 6th. The shares were sold at an average price of $1,167.95, resulting in a total transaction value of $8,918,466.20. Following the sale, Tseng still owns 165,946 shares in the company, valued at approximately $193,816,630.70.

Why it matters

Insider transactions, such as this sale by a high-ranking executive, can provide insights into a company's performance and the sentiment of its leadership. Investors often closely monitor these types of transactions to gauge the overall health and direction of a business.

The details

The sale represented a 4.4% decrease in Tseng's position in Monolithic Power Systems. The transaction was executed under a pre-arranged Rule 10b5-1 trading plan. Tseng has made several other large sales of Monolithic Power Systems stock in recent months, including 25,674 shares sold on March 30th for $25.9 million and 22,875 shares sold on February 6th for $26.8 million.

  • The stock sale occurred on Monday, April 6th, 2026.
  • Tseng also sold 1,400 shares on Wednesday, April 1st, 2026 and 25,674 shares on Monday, March 30th, 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 for a broad range of electronic systems.

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What’s next

Investors will likely continue to monitor Monolithic Power Systems' stock performance and any further insider transactions, as these can provide insights into the company's outlook and strategic direction.

The takeaway

This sale by a high-ranking executive at Monolithic Power Systems highlights the importance of tracking insider transactions, as they can signal changes in sentiment or future plans for a company. While the sale represents a sizable reduction in Tseng's stake, her remaining ownership suggests continued confidence in the semiconductor firm's long-term prospects.