MPWR EVP reports 380-share indirect stock sale
Monolithic Power Systems EVP Maurice Sciammas reported an indirect open-market sale of 380 shares of common stock at $1,583.81 per share through the Rosalind Sciammas Brokerage Account on May 5, 2026, leaving 919 shares in that account.
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Form Type
4
Rhea-AI Filing Summary
Monolithic Power Systems EVP Maurice Sciammas reported an indirect open-market sale of 380 shares of common stock at $1,583.81 per share through the Rosalind Sciammas Brokerage Account on May 5, 2026, leaving 919 shares in that account. The filing also lists multiple indirect trust and GRAT holdings and shows a separate direct holding of 178,644 common shares as of the same date.
Insider Trade Summary
Net Seller: 380 shares
Net Sell
12 txns
Insider
Sciammas Maurice
Role
EVP, WW Sales & Marketing
Sold
380 shs ($602K)
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Sale | Common Stock | 380 | $1,583.81 | $602K |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
| holding | Common Stock | -- | -- | -- |
Holdings After Transaction:
Common Stock — 919 shares (Indirect, Rosalind Sciammas Brokerage Account);
Common Stock — 178,644 shares (Direct);
Common Stock — 1,699 shares (Indirect, The Joseph Roger Sciammas 2020 Irrevocable Trust);
Common Stock — 2,000 shares (Indirect, Rosalind Sciammas Family 2021 Trust);
Common Stock — 49,460 shares (Indirect, Sciammas Family Trust);
Common Stock — 26,660 shares (Indirect, Various Sciammas GRATs);
Common Stock — 1,699 shares (Indirect, The Patrick Francis Sciammas 2020 Irrevocable Trust);
Common Stock — 4,015 shares (Indirect, By Sciammas Trust 2020);
Common Stock — 1,000 shares (Indirect, Peter Rafferty and Eric Toothill 2021Trust);
Common Stock — 1,699 shares (Indirect, The Chloe Liliane Sciammas 2020 Irrevocable Trust);
Common Stock — 1,209 shares (Indirect, Clement Sciammas Trust);
Common Stock — 5,000 shares (Indirect, Clement Sciammas Family 2021 Trust)
Key Figures
Shares sold: 380 shares
Sale price per share: $1,583.81 per share
Shares remaining in brokerage account: 919 shares
+3 more
6 metrics
Shares sold
380 shares
Open-market sale of common stock on May 5, 2026
Sale price per share
$1,583.81 per share
Price for 380 MPWR shares sold indirectly
Shares remaining in brokerage account
919 shares
Rosalind Sciammas Brokerage Account after sale
Direct common shares
178,644 shares
Direct holding of Maurice Sciammas as of May 5, 2026
Sciammas Family Trust holding
49,460 shares
Indirect common stock held by Sciammas Family Trust
Various Sciammas GRATs holding
26,660 shares
Indirect common stock held by Various Sciammas GRATs
Key Terms
open-market sale, indirect ownership, trust, GRATs, +1 more
5 terms
open-market sale financial
"Transaction code S indicates an open-market sale of common stock"
An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.
indirect ownership financial
"The sale occurred through an account reported as indirect ownership"
trust financial
"Several entries list common stock held through various Sciammas trusts"
A trust is a legal setup in which one party (the trustee) holds and manages assets—like cash, stocks or property—on behalf of other people (beneficiaries) according to instructions from the person who created it (the grantor). Think of it as a locked box with a keyholder who must follow written rules; for investors it matters because trusts influence who controls and benefits from assets, affect taxes and succession, and can change how quickly or transparently shares are bought, sold or voted.
GRATs financial
"One holding entry is described as held by Various Sciammas GRATs"
Form 4 regulatory
"The insider transaction is disclosed in a Form 4 filing"
Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What insider transaction did MPWR executive Maurice Sciammas report?
Maurice Sciammas reported an indirect open-market sale of 380 Monolithic Power Systems shares at $1,583.81 per share. The transaction was executed through the Rosalind Sciammas Brokerage Account and is classified as a sale of common stock in a Form 4 filing.
What are Maurice Sciammas’ remaining holdings after this MPWR sale?
After the sale, the Rosalind Sciammas Brokerage Account held 919 MPWR shares. The Form 4 also shows a separate direct holding of 178,644 common shares, along with several indirect positions held through various Sciammas family trusts and GRATs as of the transaction date.
Is the MPWR sale by Maurice Sciammas a direct or indirect holding change?
The 380-share sale was from an indirect holding in the Rosalind Sciammas Brokerage Account. In addition to this indirect position, the Form 4 lists multiple indirect trust holdings and a substantial direct holding of 178,644 Monolithic Power Systems common shares for Maurice Sciammas.
What type of Form 4 activity is reported for MPWR in this filing?
The Form 4 for Monolithic Power Systems reports primarily holding entries plus one open-market sale of 380 common shares. Most entries reflect updated direct and indirect share balances in trusts and accounts associated with Maurice Sciammas, rather than new grants or option exercises.
AI-generated analysis. How Rhea-AI works. Not financial advice.
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