Monolithic Power Systems Executive Sells $25.9M in Shares

Saria Tseng, EVP, reduces stake by 12.8% through recent stock sales

Apr. 3, 2026 at 8:03am

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An extreme close-up of the intricate inner workings of a high-performance semiconductor chip, with gears, circuits, and components filling the frame in a cinematic, industrial style.The heavy industrial machinery and precision engineering behind Monolithic Power Systems' semiconductor innovations.Kirkland Today

Saria Tseng, Executive Vice President at Monolithic Power Systems (NASDAQ: MPWR), has sold 25,674 shares of the company's stock for a total transaction value of $25.9 million. The sale represents a 12.8% decrease in Tseng's ownership stake, which now stands at 174,982 shares valued at $176.8 million.

Why it matters

Insider transactions, especially large sales by executives, can provide insight into a company's performance and the leadership's confidence in its future prospects. Monolithic Power Systems is a leading semiconductor firm, so Tseng's sale is notable and may signal a shift in the company's outlook or the executive's personal financial planning.

The details

The stock sales took place on two separate occasions - 22,875 shares were sold on February 6th at an average price of $1,171.16, and the remaining 25,674 shares were sold on March 30th at an average price of $1,010.50. Following the transactions, Tseng's direct ownership in Monolithic Power Systems has decreased from 200,656 shares to 174,982 shares.

  • On February 6th, Tseng sold 22,875 shares.
  • On March 30th, Tseng sold an additional 25,674 shares.

The players

Saria Tseng

Executive Vice President at 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 monitor Monolithic Power Systems' stock performance and any further insider transactions to gauge the company's outlook and leadership's confidence.

The takeaway

Saria Tseng's sizable stock sale, representing a 12.8% reduction in her ownership stake, could signal a shift in the executive's personal financial planning or a change in the company's prospects, though the exact reasons are unclear. Insider transactions provide valuable insights, and investors will be watching closely for any further developments.