Monolithic Power Systems Inc (MPWR) Ownership

579.89 ↓21.55 (-3.58%)
As of December 31, 1969, 7:00pm EST.

Institutional Ownership

Vanguard Group Inc is the biggest individual institutional holder of Monolithic Power Systems Inc (MPWR), owning a total of 5.8 million shares. Combined, the top 40 institutional holders of MPWR own 83.62% of the company with a total of 40.1 million shares.

In the latest ownership report on December 31st 2024, the top 40 institutional holders decreased their combined ownership of MPWR by 1.7 million shares. 12 institutions bought 1,327,258 total additional shares and increased their ownership by an average of 21.62%. However 8 institutions sold 3,009,528 total shares and decreased their ownership by an average of 24.14%.

Overall this is a negative sign as the number of shares owned by the top 20 institutional holders of Monolithic Power Systems decreased by a net total of -1,682,270 in the latest quarter.

Institution Ownership Chart

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Latest Institutional Ownership Changes

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
Vanguard Group Inc12.168%1.288%5,824,27474,0462024-12-31
BlackRock Inc11.328%-6.577%5,422,227-381,7362024-12-31
FMR Inc6.514%-11.401%3,118,147-401,2292024-12-31
State Street Corp4.513%3.591%2,160,01974,8732024-12-31
T. Rowe Price Associates, Inc.3.193%16.317%1,528,301214,3952024-12-31
Franklin Resources Inc3.008%-10.684%1,439,822-172,2352024-12-31
Geode Capital Management, LLC2.853%2.346%1,365,45931,2952024-12-31
Amvescap Plc.2.429%7.531%1,162,48281,4122024-12-31
Brown Advisory Holdings Inc2.060%0.538%986,0055,2742024-12-31
Wellington Management Company LLP1.782%-22.749%853,029-251,1962024-12-31
NORGES BANK1.744%28.020%834,557182,6602024-12-31
Van Eck Associates Corporation1.621%73.289%776,026328,2032024-12-31
Bank of America Corp1.159%-27.402%554,795-209,4042024-12-31
Northern Trust Corp1.064%22.757%509,29394,4142024-12-31
JPMorgan Chase & Co1.039%-72.990%497,488-1,344,4062024-12-31
Massachusetts Financial Services Company1.020%-27.989%488,300-189,7932024-12-31
Morgan Stanley - Brokerage Accounts0.960%3.239%459,30214,4102024-12-31
Rafferty Asset Management, LLC0.876%7.192%419,19528,1262024-12-31
UBS Group AG0.858%93.281%410,572198,1502024-12-31
Vaughan Nelson Scarbrgh & Mccullough LP0.808%-13.341%386,686-59,5292024-12-31

Top Institutions

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
Vanguard Group Inc12.168%1.288%5,824,27474,0462024-12-31
BlackRock Inc11.328%-6.577%5,422,227-381,7362024-12-31
FMR Inc6.514%-11.401%3,118,147-401,2292024-12-31
State Street Corp4.513%3.591%2,160,01974,8732024-12-31
State Street Corporation4.091%2.251%1,994,59143,9002024-03-31
T. Rowe Price Associates, Inc.3.193%16.317%1,528,301214,3952024-12-31
Franklin Resources Inc3.008%-10.684%1,439,822-172,2352024-12-31
Geode Capital Management, LLC2.853%2.346%1,365,45931,2952024-12-31
Amvescap Plc.2.429%7.531%1,162,48281,4122024-12-31
Brown Advisory Holdings Inc2.060%0.538%986,0055,2742024-12-31
Envestnet Asset Management Inc1.834%516.082%876,025733,8322023-03-31
Wellington Management Company LLP1.782%-22.749%853,029-251,1962024-12-31
NORGES BANK1.744%28.020%834,557182,6602024-12-31
Van Eck Associates Corporation1.621%73.289%776,026328,2032024-12-31
Artisan Partners Limited Partnership1.459%-9.456%709,950-74,1422023-12-31
Bank of America Corp1.159%-27.402%554,795-209,4042024-12-31
GQG Partners LLC1.159%0.000%546,168546,1682022-09-30
Capital Research Global Investors1.082%-14.409%527,396-88,7842024-03-31
Neuberger Berman Group LLC1.108%18.832%525,46883,2742022-12-31
Whale Rock Capital Management LLC1.097%-29.098%516,919-212,1422022-09-30
Northern Trust Corp1.064%22.757%509,29394,4142024-12-31
JPMorgan Chase & Co1.039%-72.990%497,488-1,344,4062024-12-31
Massachusetts Financial Services Company1.020%-27.989%488,300-189,7932024-12-31
Holocene Advisors, LP1.008%0.000%478,107478,1072022-12-31
Morgan Stanley - Brokerage Accounts0.960%3.239%459,30214,4102024-12-31
Impax Asset Management Group PLC0.967%11.419%458,59047,0002022-12-31
Allspring Global Investments Holdings, LLC0.949%41.346%448,962131,3282022-12-31
Millennium Management LLC0.947%8.836%448,95936,4482022-12-31
Macquarie Group Ltd0.916%-1.704%446,397-7,7402024-03-31
AllianceBernstein L.P.0.930%-10.709%444,965-53,3662024-09-30
Goldman Sachs Group Inc0.900%-15.639%430,263-79,7612024-09-30
Rafferty Asset Management, LLC0.876%7.192%419,19528,1262024-12-31
Nuveen Asset Management, LLC0.863%-4.175%414,523-18,0622023-09-30
UBS Group AG0.858%93.281%410,572198,1502024-12-31
Winslow Capital Management, LLC0.849%-2.422%407,724-10,1192023-09-30
Legal & General Group PLC0.815%31.150%389,70292,5592024-09-30
Vaughan Nelson Scarbrgh & Mccullough LP0.808%-13.341%386,686-59,5292024-12-31
ClearBridge Advisors, LLC0.669%-16.482%325,750-64,2862024-03-31
SEI Investments Co0.518%-5.016%252,025-13,3082024-03-31
Earnest Partners LLC0.465%-22.153%226,437-64,4392024-06-30

Mutual Fund Ownership

2ndVote Advisers Shareholders First is the biggest individual fund holder of Monolithic Power Systems Inc (MPWR), owning a total of 3.6 million shares. Combined, the top 45 mutual fund holders of MPWR own 61.66% of the company with a total of 29.6 million shares.

In the latest ownership report on February 28th 2025, the top 45 fund holders increased their combined ownership of MPWR by 13 thousand shares. 7 funds bought 24,370 total additional shares and increased their ownership by an average of 0.43%. However 4 funds sold 11,048 total shares and decreased their ownership by an average of 0.61%.

Overall this is a positive sign as the number of shares owned by the top 20 mutual funds holding Monolithic Power Systems increased by a net total of 13,322 in the latest report.

Mutual Funds Chart

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Latest Mutual Fund Ownership Changes

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
Vanguard Total Stock Mkt Idx Inv3.054%0.192%1,461,6722,8052025-02-28
Vanguard Institutional 500 Index Trust2.826%0.658%1,352,5608,8442025-02-28
Vanguard Mid Cap Index Institutional2.091%0.434%1,000,8844,3242025-02-28
iShares Semiconductor ETF1.531%0.600%732,6564,3682025-02-28
SPDR® S&P 500® ETF Trust1.261%-0.744%603,402-4,5242025-02-28
iShares Core S&P 500 ETF1.197%-0.005%572,980-292025-02-28
Vanguard Growth Index Investor1.066%0.057%510,3742912025-02-28
VanEck Semiconductor ETF0.801%-1.016%383,200-3,9332025-02-28
The Technology Select Sector SPDR® ETF0.797%-0.667%381,400-2,5622025-02-28
Vanguard Information Technology ETF0.741%0.266%354,6169412025-02-28
Vanguard Mid-Cap Growth ETF0.727%0.810%347,9682,7972025-02-28

Top Mutual Funds

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
2ndVote Advisers Shareholders First7.526%0.000%3,605,80402023-03-31
Fidelity Select Semiconductors3.233%12.089%1,547,473166,9002025-01-31
Vanguard Total Stock Mkt Idx Inv3.054%0.192%1,461,6722,8052025-02-28
Vanguard Instl Ttl Stck Mkt Idx Tr2.889%2.036%1,384,23227,6202023-03-31
Vanguard Institutional 500 Index Trust2.826%0.658%1,352,5608,8442025-02-28
Vanguard 500 Index Investor2.270%0.478%1,084,4765,1582023-08-31
Vanguard Mid Cap Index Institutional2.091%0.434%1,000,8844,3242025-02-28
BlackRock Mid Cap Growth1.966%7,906.050%930,063918,4462022-06-30
iShares Semiconductor ETF1.531%0.600%732,6564,3682025-02-28
T. Rowe Price US Large-Cap Core Grwth Eq1.479%3.305%694,35122,2132022-09-30
Fidelity® Magellan®1.279%5.131%612,63029,9002023-09-30
Fidelity 500 Index1.271%0.443%608,2192,6842025-01-31
SPDR® S&P 500® ETF Trust1.261%-0.744%603,402-4,5242025-02-28
iShares Core S&P 500 ETF1.197%-0.005%572,980-292025-02-28
SPDR® S&P 500 ETF Trust1.174%0.691%571,5273,9202024-05-30
Fidelity Blue Chip Growth1.174%8.726%561,96845,1002025-01-31
Fidelity® 500 Index1.162%0.640%556,7483,5432023-11-30
Vanguard Growth Index Investor1.066%0.057%510,3742912025-02-28
Select Semiconductors1.049%0.000%502,56102023-11-30
Fidelity® Select Semiconductors1.049%0.000%502,56102023-10-31
Franklin DynaTech Fund A1.026%0.000%500,00002024-07-31
T. Rowe Price New Horizons0.999%19.921%478,35079,4622025-01-31
BlackRock Mid-Cap Growth Equity Instl0.957%-5.649%466,662-27,9392024-10-31
MFS Mid Cap Growth A0.936%1.266%456,6925,7082024-10-31
MFS Mid Cap Growth Equity0.925%-31.489%450,984-207,2802024-09-30
CREF Growth R10.907%0.000%429,11302022-12-31
Fidelity Contrafund0.876%0.200%427,3998522024-10-31
American Funds Growth Fund of Amer A0.890%7.271%426,22028,8902023-09-30
Capital Group Growth Fnd of Amer Comp0.874%0.000%426,22002024-03-31
Franklin Growth Fund A0.858%0.000%418,34502024-07-31
Franklin Growth A0.858%0.000%418,34502024-07-31
T. Rowe Price Blue Chip Growth0.867%0.000%414,76402025-01-31
T. Rowe Price US Lrg-Cap Core Gr Eq Comp0.867%-6.782%414,764-30,1762024-12-31
Delaware Ivy Mid Cap Growth A0.875%-0.846%413,714-3,5282023-01-31
US Small-Cap Growth II Equity Comp0.833%783.766%398,888353,7532024-12-31
VanEck Semiconductor ETF0.801%-1.016%383,200-3,9332025-02-28
The Technology Select Sector SPDR® ETF0.797%-0.667%381,400-2,5622025-02-28
Direxion Daily Semicondct Bull 3X ETF0.786%3.254%375,97311,8502025-01-31
Vanguard US Growth Investor0.779%-11.004%372,863-46,1042024-12-31
Franklin U.S. Large Cap Gr Eq0.738%-14.008%359,745-58,6002024-09-30
Brown Advisory Sustainable Growth I0.750%-11.857%358,448-48,2182024-12-31
Vanguard Information Technology ETF0.741%0.266%354,6169412025-02-28
Franklin DynaTech A0.718%-30.000%350,000-150,0002024-11-30
Franklin Innovation Composite0.731%-30.000%350,000-150,0002024-12-31
Vanguard Mid-Cap Growth ETF0.727%0.810%347,9682,7972025-02-28

Discussions

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davieshelvy2/28/25 11:43am

$MPWR I warned everyone this company sucks

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