Form 4: Monolithic Power Systems EVP Sells Shares

Monolithic Power Systems' EVP of WW Sales & Marketing, Maurice Sciammas, reported the sale of 200 shares of common stock.

Summary

• Maurice Sciammas, Executive Vice President of Worldwide Sales & Marketing at Monolithic Power Systems Inc (MPWR), reported a transaction.
• On November 5, 2025, Sciammas disposed of 200 shares of common stock.
• The shares were sold at a price of $986.81 per share, totaling $197,362.00.
• The transaction was made pursuant to a Rule 10b5-1(c) contract, instruction, or written plan for the purchase or sale of equity securities.
• Following this transaction, Sciammas directly beneficially owns 183,306 shares of common stock.
• Indirect beneficial ownership totals 96,030 shares held across various trusts and brokerage accounts.

Sentiment

Score: 5

Explanation: A routine insider stock sale, likely part of a pre-arranged trading plan, does not significantly alter the company's fundamental outlook or present new material information.

Positives

• The transaction was executed under a Rule 10b5-1(c) plan, indicating a pre-arranged, non-discretionary sale, which can mitigate concerns about opportunistic insider trading.

Negatives

• An executive's sale of company stock, even if pre-planned, reduces their direct equity stake in the company.

Future Outlook

NA

Industry Context

This routine insider transaction does not provide specific insights into broader industry trends or competitive landscape for the semiconductor sector.

Related Party Transactions

• Indirect beneficial ownership of 1,299 shares through Rosalind Sciammas Brokerage Account.
• Indirect beneficial ownership of 9,481 shares through Maurice Sciammas Trust FBO Oski Crew.
• Indirect beneficial ownership of 1,699 shares through The Joseph Roger Sciammas 2020 Irrevocable Trust.
• Indirect beneficial ownership of 2,000 shares through Rosalind Sciammas Family 2021 Trust.
• Indirect beneficial ownership of 9,481 shares through Christina Sciammas Trust FBO Oski Crew.
• Indirect beneficial ownership of 1,499 shares through Clement Sciammas Brokerage Account.
• Indirect beneficial ownership of 44,930 shares through Sciammas Family Trust.
• Indirect beneficial ownership of 12,228 shares through Various Sciammas GRATs.
• Indirect beneficial ownership of 1,699 shares through The Patrick Francis Sciammas 2020 Irrevocable Trust.
• Indirect beneficial ownership of 4,015 shares through By Sciammas Trust 2020.
• Indirect beneficial ownership of 5,000 shares through Clement Sciammas Family 2021 Trust.
• Indirect beneficial ownership of 1,000 shares through Peter Rafferty and Eric Toothill 2021 Trust.
• Indirect beneficial ownership of 1,699 shares through The Chloe Liliane Sciammas 2020 Irrevocable Trust.

Stakeholder Impact

• Shareholders: Minimal impact due to the small volume of shares sold relative to the company's total outstanding shares and the executive's overall holdings.
• Employees, Customers, Suppliers, Creditors: No direct impact from this routine insider transaction.

Key Dates

Recommendation

The reported sale of 200 shares by an executive is a minor transaction, likely part of a pre-scheduled trading plan, and does not indicate a material change in the company's fundamentals or future prospects. Therefore, a 'hold' recommendation is maintained.

Keywords

Monolithic Power Systems, MPWR, Insider Trading, Form 4, Stock Sale, Executive Transaction, Semiconductor