​

Monolithic Power Systems Ownership | Who Owns Monolithic Power Systems?

OverviewForecastRevenueFinancialsChartTranscripts

Monolithic Power Systems Ownership Summary

Monolithic Power Systems is owned by 98.53% institutional investors, 3.29% insiders. Vanguard group is the largest institutional shareholder, holding 11.95% 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 Systems98.53%3.29%-1.81%
SectorTechnology Stocks 143.99%12.56%-56.55%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

HolderShares% HoldingValue
Vanguard group5.82M11.95%$3.45B
Blackrock funding, inc. /de5.23M10.92%$3.82B
Fmr3.12M6.40%$1.85B
Price t rowe associates inc /md/1.53M3.13%$904.30M
Franklin resources1.44M2.95%$851.94M
Geode capital management1.37M2.80%$807.16M
Invesco1.16M2.38%$687.84M
Van eck associates952.06K1.99%$696.32M
T. rowe price investment management927.81K1.94%$678.58M
Brown advisory864.31K1.81%$632.16M

Top Institutional Shareholders by % of Total Assets

HolderShares% AssetsValue
Grandeur peak global advisors68.29K6.02%$49.94M
Pembroke management54.97K4.86%$40.20M
Natixis investment managers63.77K2.92%$37.73M
Arcadia investment management corp/mi20.34K2.89%$18.73M
Vantage investment partners47.54K2.53%$34.77M
Vaughan nelson investment management272.53K2.28%$250.90M
Robeco schweiz103.24K2.14%$95.04M
Mirabaud asset management5.63K1.93%$4.14M
Carderock capital management8.52K1.91%$7.85M
Taylor frigon capital management4.14K1.90%$3.81M

Top Buyers

HolderShares% AssetsChange
Norges bank834.56K0.06%834.56K
T. rowe price investment management927.81K0.43%613.36K
Fil523.07K0.33%412.49K
Blackrock funding, inc. /de5.23M0.07%316.31K
Price t rowe associates inc /md/1.53M0.10%214.40K

Top Sellers

HolderShares% AssetsChange
Jpmorgan chase497.49K0.02%-423.46K
Fmr3.12M0.11%-401.23K
Alyeska investment group---287.15K
Capital research global investors---256.87K
Wellington management group llp853.03K0.09%-251.20K

New Positions

HolderShares% AssetsChangeValue
Norges bank834.56K0.06%834.56K$493.81M
Twinbeech capital lp48.02K0.80%48.02K$35.12M
Glenmede investment management, lp22.28K0.08%22.28K$16.30M
Moore capital management, lp20.00K0.18%20.00K$14.63M
Davidson kempner capital management lp20.00K0.24%20.00K$14.63M

Sold Out

HolderChange
Stephens consulting-1.00
Bok financial private wealth-1.00
American capital advisory-1.00
Highmark wealth management-1.00
Claris advisors, llc / mo /-1.00

Institutional Ownership Trends

DateHoldingsChange %SharesChange %OwnershipChange %Increased PositionChange %Decreased PositionChange %
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%
Jun 30, 20248512.78%46,862,6463.40%961.11%433-2864.38%

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
Oct 24, 2025Tseng Saria EVP & General CounselSell$1.41M
Oct 16, 2025Tseng Saria EVP & General CounselSell$1.35M
Oct 15, 2025Tseng Saria EVP & General CounselSell$14.25M
Oct 16, 2025Tseng Saria EVP & General CounselSell$1.53M
Oct 01, 2025BLEGEN THEODORE EVP and CFOSell$104.12K

Insider Transactions Trends

DateBuySell
2025 Q4-17
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 Vanguard group (5.82M shares, 11.95%), Blackrock funding, inc. /de (5.23M shares, 10.92%), and Fmr (3.12M shares, 6.40%). Together, they hold 29.26% 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 6.02% of its assets in 68.29K Monolithic Power Systems shares, valued at 49.94M$.

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.

Try Tickergate Pro Free

Customize Everything. 100% Flexibility. Fast and Easy to Use (No code or Excel Needed)

  • Customize your own personal stocks lists, views and charts

  • Choose from hundreds of fields, up to 15 years of history

  • Conduct deep comparison analysis

  • Discover trending investment themes

  • Find your next best investment

  • Research stocks using tools