Form 4: Monolithic Power Systems EVP Sells Shares for Tax Cover

Monolithic Power Systems' EVP & General Counsel, Saria Tseng, sold 22,875 shares of common stock to cover taxes related to restricted stock units.

Summary

• Saria Tseng, Executive Vice President and General Counsel of Monolithic Power Systems Inc. (MPWR), reported a transaction.
• On February 6, 2026, Tseng disposed of 22,875 shares of common stock.
• The shares were sold at a price of $1,171.1637 per share.
• The total value of the shares sold amounts to approximately $26,789,000.00.
• The purpose of the sale was to cover taxes upon the release of restricted stock units, as mandated by the company's equity incentive plan.
• Following this transaction, Tseng directly beneficially owns 200,626 shares of common stock.
• Additionally, Tseng indirectly beneficially owns 1,000 shares of common stock through the C&T Discovery Foundation.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral event, as the sale is a routine tax-related transaction for an executive's equity compensation and not indicative of a change in company fundamentals or management's confidence.

Future Outlook

NA

Industry Context

StockSavvy.ai notes that insider sales, particularly those explicitly stated to cover tax obligations from equity awards, are common occurrences and typically do not signal a change in management's long-term view of the company's prospects. Such transactions are often pre-scheduled under Rule 10b5-1 plans to avoid accusations of trading on material non-public information.

Stakeholder Impact

• Shareholders: The sale represents a minor dilution relative to the total outstanding shares, but the stated purpose (tax coverage) suggests no negative implications for company strategy or performance.

Key Dates

Recommendation

The transaction is a routine, tax-related sale of shares by an executive upon the vesting of restricted stock units. It does not reflect a change in the company's fundamentals or the executive's long-term outlook, thus it does not warrant a change in investment recommendation based solely on this filing.

Keywords

Monolithic Power Systems, MPWR, Insider Trading, Form 4, Stock Sale, Restricted Stock Units, Executive Compensation, Saria Tseng