13F Pro

SEC Form 4 reporting owner

Sciammas Maurice

Sciammas Maurice has filed 38 Form 4 transactions reported between February 3, 2026 and August 4, 2026, as EVP, WW Sales & Marketing of MONOLITHIC POWER SYSTEMS, INC..

Name as filed: Sciammas Maurice

Open-market buys, 24 mo
None
reported
Open-market sales, 24 mo
$66.8M
34 lines
Companies
1
with Form 4 filings
Latest transaction
Aug 4, 2026
transaction date

Roles and reported holdings

  • MPWRMONOLITHIC POWER SYSTEMS, INC.
    Feb 3, 2026 – Aug 4, 2026

    EVP, WW Sales & Marketing

    Held directly126,644 sh as of Aug 4, 2026 · Form 4
    Held indirectly (latest line)1,119 sh as of Aug 3, 2026 · Form 4

    24 months: $66.8M sold

Transaction history

All 38 reported transactions, newest first. Every row links to the Form 4 on SEC EDGAR.

DateCompanyTypeSharesValueFiling
Aug 4, 2026MPWREVP, WW Sales & MarketingGiftCode G · direct25,000—Form 4
Aug 3, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · indirect30$40K@ $1343.94Form 4
Jul 15, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · direct110$155K@ $1405.71Form 4
Jul 15, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · direct117$164K@ $1400.45Form 4
Jul 15, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · direct213$297K@ $1396.16Form 4
Jul 15, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · direct410$567K@ $1384.11Form 4
Jul 15, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · direct418$576K@ $1378.73Form 4
Jul 15, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · direct472$649K@ $1375.47Form 4
Jul 15, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · direct240$329K@ $1369.18Form 4
Jul 15, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · direct50$68K@ $1359.36Form 4
Jul 15, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · direct5,640$7.6M@ $1352.95Form 4
Jul 15, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · direct1,506$2.0M@ $1348.91Form 4
Jul 15, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · direct1,864$2.5M@ $1344.16Form 4
Jul 15, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · direct1,460$2.0M@ $1339.59Form 4
Jul 15, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · direct776$1.0M@ $1334.59Form 4
Jul 15, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · direct464$617K@ $1329.30Form 4
Jul 15, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · direct409$541K@ $1323.93Form 4
Jul 15, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · direct274$361K@ $1318.42Form 4
Jul 15, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · direct527$692K@ $1314.03Form 4
Jul 1, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · indirect30$41K@ $1351.61Form 4
Jun 1, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · indirect30$46K@ $1533.95Form 4
May 29, 2026MPWREVP, WW Sales & MarketingGiftCode G · indirect12,472—Form 4
May 15, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · direct50$79K@ $1585.51Form 4
May 15, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · direct447$707K@ $1582.21Form 4
May 15, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · direct703$1.1M@ $1577.75Form 4
May 15, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · direct1,312$2.1M@ $1571.49Form 4
May 15, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · direct2,020$3.2M@ $1567.15Form 4
May 15, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · direct2,010$3.1M@ $1562.01Form 4
May 15, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · direct1,717$2.7M@ $1557.48Form 4
May 15, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · direct3,741$5.8M@ $1550.36Form 4
May 13, 2026MPWREVP, WW Sales & MarketingGiftCode G · indirect1,563—Form 4
May 5, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · indirect380$602K@ $1583.81Form 4
May 4, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · indirect30$48K@ $1588.73Form 4
Apr 1, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · indirect30$33K@ $1116.44Form 4
Mar 20, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · indirect30$33K@ $1095.07Form 4
Feb 11, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · indirect200$236K@ $1179.97Form 4
Feb 6, 2026MPWREVP, WW Sales & MarketingOpen-market saleCode S · directAlso reported by Xiao Deming, Tseng Saria22,875$26.8M@ $1171.16Form 4
Feb 3, 2026MPWREVP, WW Sales & MarketingGrant or awardCode A · direct57,170—Form 4

How this page is built

Every row comes from a Form 4 filed with the SEC, which officers, directors and holders of more than 10% of a company’s stock must file within two business days of a trade. Transactions are grouped by the reporting owner’s name as filed (spacing, capitals and punctuation ignored); two different people filing under an identical name would appear together, and one person filing under two spellings appears on two pages.

Open-market totals count code P purchases and code S sales over the last 24 months. The same trade reported on more than one filing is counted once; when another owner (for example a fund and its general partner) reports the identical trade, they are listed beside it. Holdings are the shares owned after the latest purchase, sale, gift or tax-withholding line, shown separately for direct and indirect ownership; an indirect figure is one holding line, not a total across every trust or entity.

This page describes what was filed with the SEC; it is not investment advice or a recommendation to buy or sell any security.