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

Insider buying vs selling

Have Monolithic Power Systems Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Theodore BlegenEVP and CFO2025-12-0140$899.73
$35.99kSell
Theodore BlegenEVP and CFO2025-12-0156$911.59
$51.05kSell
Theodore BlegenEVP and CFO2025-12-011,984$909.00
$1.80MSell
Theodore BlegenEVP and CFO2025-12-01480$908.69
$436.17kSell
Theodore BlegenEVP and CFO2025-12-0180$907.59
$72.61kSell
Theodore BlegenEVP and CFO2025-12-0180$906.84
$72.55kSell
Theodore BlegenEVP and CFO2025-12-01120$904.38
$108.53kSell
Theodore BlegenEVP and CFO2025-12-0140$902.31
$36.09kSell
Theodore BlegenEVP and CFO2025-12-0180$901.88
$72.15kSell
Theodore BlegenEVP and CFO2025-12-0140$900.88
$36.04kSell

1 of 21

MPWR insiders have sold more... subscribe to Premium to read more.
Net Insider Buy/Sell (L12M) Ownership

Be the first to know when MPWR insiders and whales buy or sell their stock.

MPWR Shareholders

What type of owners hold Monolithic Power Systems Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Lombard Odier Asset Management Europe Ltd47.36%22,690,966$21.86BInstitution
Jim J. Jones Iii13.65%6,538,897$6.30BInsider
Vanguard Group Inc12.68%6,074,033$5.85BInstitution
Blackrock Inc11.95%5,726,774$5.52BInstitution
Kuo Wei Herbert Chang9.47%4,536,527$4.37BInsider
Fmr LLC7.44%3,564,796$3.43BInstitution
Michael Hsing5.46%2,617,380$2.52BInsider
State Street Corp4.46%2,134,704$2.06BInstitution
Price T Rowe Associates Inc3.29%1,573,798$1.52BInstitution
Geode Capital Management LLC2.79%1,337,697$1.29BInstitution

1 of 3

MPWR vs Semiconductor Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
MPWR81.21%18.79%Net SellingNet Selling
MCHP75.09%24.91%Net BuyingNet Buying
NXPI90.33%0.54%Net SellingNet Selling
ALAB65.54%30.50%Net SellingNet Selling
STM9.42%0.00%

Monolithic Power Systems Stock Ownership FAQ

Who owns Monolithic Power Systems?

Monolithic Power Systems (NASDAQ: MPWR) is owned by 144.98% institutional shareholders, 33.55% Monolithic Power Systems insiders, and 0.00% retail investors. Jim J. Jones Iii is the largest individual Monolithic Power Systems shareholder, owning 6.54M shares representing 13.65% of the company. Jim J. Jones Iii's Monolithic Power Systems shares are currently valued at $6.30B.

If you're new to stock investing, here's how to buy Monolithic Power Systems stock.
WallStreetZen does not provide financial advice and does not issue recommendations or offers to buy stock or sell any security.

Information is provided 'as-is' and solely for informational purposes and is not advice. WallStreetZen does not bear any responsibility for any losses or damage that may occur as a result of reliance on this data.