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Monolithic Power Systems Ownership | Who Owns Monolithic Power Systems?

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Monolithic Power Systems Ownership Summary

Monolithic Power Systems is owned by 144.39% institutional investors, 3.93% insiders. Lombard odier asset management (europe) is the largest institutional shareholder, holding 47.40% of MPWR shares. Vanguard US Total Market Shares ETF is the top mutual fund, with 3.07% of its assets in Monolithic Power Systems shares.

MPWR Ownership Benchmark

TypeName% Inst% Insiders% Retail
StockMonolithic Power Systems144.39%3.93%-48.32%
SectorTechnology Stocks 50.72%12.57%36.71%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Lombard odier asset management (europe)22.69M47.40%$38.00M
Vanguard group6.07M12.69%$5.59B
Blackrock funding, inc. /de5.73M11.96%$5.27B
Fmr3.56M7.45%$3.28B
State street2.13M4.46%$1.97B
Price t rowe associates inc /md/1.57M3.29%$1.45B
Geode capital management1.34M2.79%$1.23B
Invesco1.14M2.38%$1.05B
Franklin resources1.05M2.20%$968.56M
Jpmorgan chase863.23K1.80%$794.72M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Grandeur peak global advisors65.17K8.05%$60.00M
Pembroke management53.94K4.93%$49.66M
Analog century management lp77.59K3.83%$71.43M
4d advisors6.50K3.19%$5.98M
Natixis investment managers63.77K2.92%$37.73M
Arcadia investment management corp/mi20.34K2.89%$18.73M
Vantage investment partners44.58K2.81%$41.05M
Avalon global asset management22.50K2.37%$20.71M
Eulav asset management108.28K2.32%$99.68M
Vaughan nelson investment management272.53K2.28%$250.90M

Top Buyers

HolderShares% AssetsChange
Lombard odier asset management (europe)22.69M1.92%22.68M
Norges bank834.56K0.06%834.56K
Blackrock funding, inc. /de5.73M0.09%497.55K
Rakuten investment management214.26K0.13%214.26K
First trust advisors lp447.80K0.31%178.62K

Top Sellers

HolderShares% AssetsChange
Price t rowe associates inc /md/1.57M0.15%-515.01K
Alyeska investment group---287.15K
Capital research global investors---256.87K
Wellington management group llp452.94K0.07%-250.21K
Van eck associates732.45K0.63%-219.61K

New Positions

HolderShares% AssetsChangeValue
Norges bank834.56K0.06%834.56K$493.81M
Rakuten investment management214.26K0.13%214.26K$35.12M
Axa investment managers115.62K0.29%115.62K$106.44M
Analog century management lp77.59K3.83%77.59K$71.43M
Hrt financial lp65.88K0.22%65.88K$60.65M

Sold Out

HolderChange
Horizon financial services-1.00
American capital advisory-1.00
Highmark wealth management-1.00
Bok financial private wealth-1.00
Stephens consulting-1.00

Institutional Ownership Trends

DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
Sep 30, 20259644.22%69,120,35251.13%1441.58%503-0.98%294-1.67%
Jun 30, 20259285.10%47,163,7152.50%981.07%50510.75%3020.33%
Mar 31, 2025871-1.25%45,843,294-1.25%951.06%445-4.09%3023.78%
Dec 31, 2024796-11.16%43,926,803-3.83%901.03%413-5.06%261-18.69%
Sep 30, 20248934.94%45,672,009-2.54%931.01%4350.46%31811.19%

Top Mutual Funds Shareholders

HolderShares% HoldingChange
Vanguard US Total Market Shares ETF1.47M3.07%6.66K
Vanguard Total Stock Mkt Idx Inv1.43M2.98%-33.31K
Fidelity Select Semiconductors1.42M2.97%33.33K
Vanguard Institutional 500 Index Trust1.36M2.84%9.51K
Vanguard 500 Index Investor1.19M2.48%-173.64K
Vanguard Mid Cap Index Institutional1.01M2.12%10.95K
iShares Semiconductor ETF658.52K1.38%-
Fidelity Blue Chip Growth641.76K1.34%-11.00K
Fidelity 500 Index606.93K1.27%260.00
SPDR® S&P 500 ETF594.78K1.24%-21.55K

Recent Insider Transactions

DateNameRoleActivityValue
Dec 01, 2025BLEGEN THEODORE EVP and CFOSell$72.15K
Dec 01, 2025BLEGEN THEODORE EVP and CFOSell$36.09K
Dec 01, 2025BLEGEN THEODORE EVP and CFOSell$35.99K
Dec 01, 2025BLEGEN THEODORE EVP and CFOSell$36.04K
Dec 01, 2025BLEGEN THEODORE EVP and CFOSell$108.53K

Insider Transactions Trends

DateBuySell
2025 Q4-141
2025 Q3-39
2025 Q2-4
2025 Q1-12
2024 Q4-49

MPWR Ownership FAQ

Who owns the most shares of Monolithic Power Systems?

Monolithic Power Systems’s largest shareholders are Lombard odier asset management (europe) (22.69M shares, 47.40%), Vanguard group (6.07M shares, 12.69%), and Blackrock funding, inc. /de (5.73M shares, 11.96%). Together, they hold 72.05% of Monolithic Power Systems’s total shares outstanding.

Does Blackrock own Monolithic Power Systems?

BlackRock is not among the top 10 institutional shareholders of Monolithic Power Systems.

Who is Monolithic Power Systems’s biggest shareholder by percentage of total assets invested?

Grandeur peak global advisors is Monolithic Power Systems’s biggest shareholder by percentage of total assets invested, with 8.05% of its assets in 65.18K Monolithic Power Systems shares, valued at 60M$.

Who is the top mutual fund holder of Monolithic Power Systems shares?

Vanguard US Total Market Shares ETF is the top mutual fund holder of Monolithic Power Systems shares, with 3.07% of its total shares outstanding invested in 1.47M Monolithic Power Systems shares.

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