Monolithic Power Systems, Inc.

NasdaqGS:MPWR Stock Report

Market Cap: US$56.1b

Monolithic Power Systems Ownership

Who are the major shareholders and have insiders been buying or selling?

Recent Insider Transactions

NasdaqGS:MPWR Recent Insider Transactions by Companies or Individuals
DateValueNameEntityRoleSharesMax Price
11 Feb 26SellUS$235,995Maurice SciammasIndividual200US$1,179.98
06 Feb 26SellUS$64,323,824Michael HsingIndividual54,923US$1,171.16
06 Feb 26SellUS$25,443,531Theodore BlegenIndividual21,725US$1,171.16
06 Feb 26SellUS$26,790,370Maurice SciammasIndividual22,875US$1,171.16
06 Feb 26SellUS$26,790,370Deming XiaoIndividual22,875US$1,171.16
06 Feb 26SellUS$26,790,370Saria TsengIndividual22,875US$1,171.16
26 Nov 25SellUS$36,612,954Saria TsengIndividual40,000US$930.48
25 Nov 25SellUS$89,697Kuo Wei ChangIndividual100US$896.97
24 Nov 25SellUS$3,559,434Maurice SciammasIndividual3,976US$895.23
21 Nov 25SellUS$87,397Kuo Wei ChangIndividual100US$873.97
19 Nov 25SellUS$30,777,446Maurice SciammasIndividual35,000US$886.01
12 Nov 25SellUS$74,060,101Michael HsingIndividual77,000US$980.06
05 Nov 25SellUS$197,362Maurice SciammasIndividual200US$986.81
29 Aug 25SellUS$3,386,841Eugen ElmigerIndividual4,000US$849.41
27 Aug 25SellUS$167,910Jeff ZhouIndividual193US$870.00
15 Aug 25SellUS$16,773,550Michael HsingIndividual20,231US$836.40
13 Aug 25SellUS$340,000Jeff ZhouIndividual400US$850.00
12 Aug 25SellUS$166,000Jeff ZhouIndividual200US$830.00
01 Aug 25SellUS$2,250,000Theodore BlegenIndividual3,000US$750.00
01 Aug 25SellUS$31,199,220Deming XiaoIndividual39,999US$780.00
01 Jul 25SellUS$4,500,000Theodore BlegenIndividual6,000US$750.00
13 May 25SellUS$36,900Kuo Wei ChangIndividual50US$738.00
12 May 25SellUS$8,412,000Maurice SciammasIndividual12,000US$701.00
12 May 25SellUS$69,800Kuo Wei ChangIndividual100US$698.00
08 May 25SellUS$65,000Kuo Wei ChangIndividual100US$650.00

Insider Trading Volume

Insider Buying: MPWR insiders have only sold shares in the past 3 months.

Ownership Breakdown

What is the ownership structure of MPWR?
Owner TypeNumber of SharesOwnership Percentage
State or Government48,6870.0962%
Individual Insiders1,915,0913.78%
Institutions48,644,16696.1%

Dilution of Shares: Shareholders have not been meaningfully diluted in the past year.

Top Shareholders

Top 25 shareholders own 66.2% of the company
OwnershipNameSharesCurrent ValueChange %Portfolio %
12.3%
The Vanguard Group, Inc.
6,034,394US$6.9b-0.65%0.08%
12.1%
BlackRock, Inc.
5,962,089US$6.8b4.11%0.08%
7.61%
FMR LLC
3,739,857US$4.3b12.2%0.21%
4.92%
T. Rowe Price Group, Inc.
2,415,888US$2.8b3.93%0.23%
4.44%
State Street Global Advisors, Inc.
2,180,419US$2.5b2.14%0.07%
2.81%
Geode Capital Management, LLC
1,382,280US$1.6b3.33%0.08%
2.13%
Franklin Resources, Inc.
1,046,992US$1.2b-0.26%0.34%
2.11%
Michael Hsing
1,034,099US$1.2b-1.72%no data
1.56%
Invesco Ltd.
767,408US$876.8m1.48%0.21%
1.54%
UBS Asset Management AG
757,782US$865.8m-10.2%0.07%
1.48%
Norges Bank Investment Management
726,705US$830.3m21.3%0.05%
1.43%
First Trust Advisors LP
701,454US$801.5m56.6%0.48%
1.36%
Invesco Capital Management LLC
667,281US$762.4m74.3%0.2%
1.16%
Massachusetts Financial Services Company
570,719US$652.1m2.54%0.14%
1.02%
Van Eck Associates Corporation
502,312US$573.9m-31.4%0.31%
1.02%
Brown Advisory Incorporated
500,654US$572.0m-31.4%0.8%
0.98%
Northern Trust Global Investments
483,700US$552.7m-0.44%0.07%
0.87%
JP Morgan Asset Management
426,416US$487.2m-10.5%0.04%
0.84%
Barclays PLC
410,465US$469.0m24%0.25%
0.81%
Rafferty Asset Management, LLC
396,464US$453.0m4.52%1.44%
0.78%
Wellington Management Group LLP
384,770US$439.6m-15.1%0.07%
0.74%
Charles Schwab Investment Management, Inc.
365,384US$417.5m2.09%0.05%
0.74%
The Goldman Sachs Group, Inc.
361,579US$413.1m78.3%0.15%
0.73%
Legal & General Investment Management Limited
356,639US$407.5m-0.5%0.07%
0.7%
Bank of America Corporation
342,534US$391.4m-19.2%0.09%

Company Analysis and Financial Data Status

DataLast Updated (UTC time)
Company Analysis2026/03/03 23:33
End of Day Share Price 2026/03/03 00:00
Earnings2025/12/31
Annual Earnings2025/12/31

Data Sources

The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.

PackageDataTimeframeExample US Source *
Company Financials10 years
  • Income statement
  • Cash flow statement
  • Balance sheet
Analyst Consensus Estimates+3 years
  • Forecast financials
  • Analyst price targets
Market Prices30 years
  • Stock prices
  • Dividends, Splits and Actions
Ownership10 years
  • Top shareholders
  • Insider trading
Management10 years
  • Leadership team
  • Board of directors
Key Developments10 years
  • Company announcements

* Example for US securities, for non-US equivalent regulatory forms and sources are used.

Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.

Analysis Model and Snowflake

Details of the analysis model used to generate this report is available on our Github page, we also have guides on how to use our reports and tutorials on Youtube.

Learn about the world class team who designed and built the Simply Wall St analysis model.

Industry and Sector Metrics

Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.

Analyst Sources

Monolithic Power Systems, Inc. is covered by 25 analysts. 15 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.

AnalystInstitution
Tristan GerraBaird
Brian PiccioniBMO Capital Markets Equity Research
Nicholas AberleBrean Capital Historical (Janney Montgomery)