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NASDAQ: MPWR
Monolithic Power Systems Inc Stock Ownership - Who owns Monolithic Power Systems?

OverviewForecastEarningsRevenueDividendOwnership

Insider buying vs selling

Have Monolithic Power Systems Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Michael HsingCEO2026-09-282,949$1.34k
$3.95MSell
Michael HsingCEO2026-09-281,111$1.33k
$1.48MSell
Michael HsingCEO2026-09-2810,967$1.35k
$14.82MSell
Michael HsingCEO2026-09-28130$1.36k
$176.40kSell
Michael HsingCEO2026-09-286,343$1.35k
$8.54MSell
Michael HsingCEO2026-09-282,121$1.33k
$2.82MSell
Michael HsingCEO2026-09-28596$1.32k
$788.69kSell
Michael HsingCEO2026-09-285,783$1.34k
$7.77MSell
Kuo Wei Herbert ChangDirector2026-08-2450$1.28k
$64.08kSell
Robert W. Dean IiCFO;Interim2026-08-2432$1.30k
$41.53kSell

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Net Insider Buy/Sell (L12M) Ownership

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MPWR Shareholders

What type of owners hold Monolithic Power Systems Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Jim J. Jones Iii13.31%6,538,897$7.92BInsider
Kuo Wei Herbert Chang9.23%4,536,616$5.49BInsider
Michael Hsing5.39%2,650,015$3.21BInsider
James C. Moyer1.38%678,332$821.37MInsider
Paul Ueunten0.87%429,501$520.07MInsider
Maurice Sciammas0.66%323,507$391.72MInsider
Deming Xiao0.65%317,083$383.94MInsider
Meera Rao0.50%243,534$294.89MInsider
Saria Tseng0.32%155,218$187.95MInsider
Theodore Blegen0.19%93,015$112.63MInsider

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MPWR vs Semiconductor Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
MPWR0.10%32.74%Net SellingNet Selling
NXPI0.10%0.53%Net SellingNet Selling
UMC0.00%1.23%Net SellingNet Selling
ALAB0.07%36.71%Net SellingNet Selling
STM0.02%0.00%
View Top Semiconductor Stocks

Monolithic Power Systems Stock Ownership FAQ

Who owns Monolithic Power Systems?

Monolithic Power Systems (NASDAQ: MPWR) is owned by 0.10% institutional shareholders, 32.74% Monolithic Power Systems insiders, and 67.16% retail investors. Jim J. Jones Iii is the largest individual Monolithic Power Systems shareholder, owning 6.54M shares representing 13.31% of the company. Jim J. Jones Iii's Monolithic Power Systems shares are currently valued at $7.92B.

If you're new to stock investing, here's how to buy Monolithic Power Systems stock.
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