Form 4: Monolithic Power Systems Insider Transaction
Insider Transaction Report
Maurice Sciammas, EVP of WW Sales & Marketing at Monolithic Power Systems, reported a transaction involving common stock under a Rule 10b5-1 trading plan.
Summary
- Maurice Sciammas, Executive Vice President of Worldwide Sales & Marketing for Monolithic Power Systems Inc. (MPWR), has reported a transaction.
- The transaction involved the disposal of common stock on April 1, 2026.
- This transaction was executed under a pre-arranged Rule 10b5-1 trading plan adopted on November 19, 2025.
- Following the transaction, Sciammas directly owns 178,644 shares of common stock.
- Additionally, he beneficially owns shares indirectly through various trusts and accounts, including the Clement Sciammas Trust, The Joseph Roger Sciammas 2020 Irrevocable Trust, Rosalind Sciammas Family 2021 Trust, Rosalind Sciammas Brokerage Account, Various Sciammas GRATs, The Patrick Francis Sciammas 2020 Irrevocable Trust, By Sciammas Trust 2020, Peter Rafferty and Eric Toothill 2021 Trust, The Chloe Liliane Sciammas 2020 Irrevocable Trust, and Clement Sciammas Family 2021 Trust.
Sentiment
Score: 5
Explanation: StockSavvy.ai views this as a neutral filing, as it reports a standard insider transaction executed under a pre-established trading plan, which is a common and regulated practice.
Future Outlook
No specific future outlook or guidance is provided in this filing, as it pertains to an insider stock transaction.
Industry Context
StockSavvy.ai notes that Form 4 filings, particularly those executed under Rule 10b5-1 plans, are standard disclosures for executives and provide transparency into insider stock transactions. These plans are designed to allow insiders to buy or sell stock at predetermined times or prices, mitigating concerns about insider trading.
Key Dates
| Date | Description |
|---|---|
| 11/19/2025 | Date Rule 10b5-1 trading plan was adopted. |
| 04/01/2026 | Date of the reported stock transaction (disposal). |
| 04/03/2026 | Date the Form 4 was signed by the attorney-in-fact. |
Keywords
Monolithic Power Systems, MPWR, Form 4, Insider Trading, Rule 10b5-1, Stock Transaction, Beneficial Ownership, Executive Sales
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