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Monolithic Power Systems, Inc.

MPWR
Exchange
Nasdaq
Industry
Semiconductors & Related Devices
SEC CIK
0001280452

In the last 90 days, Monolithic Power Systems, Inc. insiders filed 0 open-market purchases and 9 sales; 1,250 institutions reported holding it in 13F filings for Q2 2026, worth $65.6B in total; superinvestors D1 Capital Partners and Maverick Capital hold it.

13F holders, Q3 2025

Institutional positions in Monolithic Power Systems, Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
981
+89 vs. Q2 2025
Shares held
46.8M
+118.5K (+0.3%) vs. Q2 2025
Total value
$43.0B
+$8.79B (+25.7%) vs. Q2 2025
New holders
164
361 more added
Sold out
75
317 more reduced

15 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MPWR on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 981 institutions
Q1 2021: 530 institutionsQ2 2021: 533 institutionsQ3 2021: 579 institutionsQ4 2021: 627 institutionsQ1 2022: 611 institutionsQ2 2022: 625 institutionsQ3 2022: 630 institutionsQ4 2022: 611 institutionsQ1 2023: 669 institutionsQ2 2023: 652 institutionsQ3 2023: 655 institutionsQ4 2023: 737 institutionsQ1 2024: 807 institutionsQ2 2024: 838 institutionsQ3 2024: 885 institutionsQ4 2024: 864 institutionsQ1 2025: 862 institutionsQ2 2025: 907 institutionsQ3 2025: 981 institutionsQ4 2025: 1,061 institutionsQ1 2026: 1,124 institutionsQ2 2026: 1,250 institutions
Value heldQ3 2025: $43.0B
Q1 2021: $15.1BQ2 2021: $16.1BQ3 2021: $21.1BQ4 2021: $21.5BQ1 2022: $21.3BQ2 2022: $16.8BQ3 2022: $16.6BQ4 2022: $16.5BQ1 2023: $23.3BQ2 2023: $25.2BQ3 2023: $21.2BQ4 2023: $28.6BQ1 2024: $31.2BQ2 2024: $38.6BQ3 2024: $42.8BQ4 2024: $27.6BQ1 2025: $27.0BQ2 2025: $34.6BQ3 2025: $43.0BQ4 2025: $44.2BQ1 2026: $51.6BQ2 2026: $65.6B
Institutions holding MPWR and their total value by quarter
QuarterHoldersValue
Q2 20261,250$65.6B
Q1 20261,124$51.6B
Q4 20251,061$44.2B
Q3 2025981$43.0B
Q2 2025907$34.6B
Q1 2025862$27.0B
Q4 2024864$27.6B
Q3 2024885$42.8B
Q2 2024838$38.6B
Q1 2024807$31.2B
Q4 2023737$28.6B
Q3 2023655$21.2B
Q2 2023652$25.2B
Q1 2023669$23.3B
Q4 2022611$16.5B
Q3 2022630$16.6B
Q2 2022625$16.8B
Q1 2022611$21.3B
Q4 2021627$21.5B
Q3 2021579$21.1B
Q2 2021533$16.1B
Q1 2021530$15.1B

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Monolithic Power Systems, Inc.; share changes are against Q2 2025.

Institutions holding MPWR in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Sovran Advisors, LLC980$1.07M0.09%+147+17.6%Added
Kestra Private Wealth Services, LLC1,151$1.06M0.01%+228+24.7%Added
Captrust Financial Advisors1,149$1.06M0.00%−54−4.5%Reduced
Win Advisors, Inc1,144$1.05M0.51%−284−19.9%Reduced
Wedmont Private Capital1,102$1.04M0.04%+34+3.2%Added
Suncoast Equity Management1,123$1.03M0.10%+52+4.9%Added
Winnow Wealth LLC1,116$1.03M0.80%+1,116New
Guerra Advisors Inc1,115$1.03M0.38%+161+16.9%Added
Advisor OS, LLC1,113$1.03M0.09%−90−7.5%Reduced
Gibbs Wealth Management1,104$1.02M0.23%−211−16.0%Reduced
Bayesian Capital Management, LP1,100$1.01M0.21%+1,100New
Hancock Whitney Corp1,085$998.9K0.02%−2,059−65.5%Reduced
Greenleaf Trust1,085$998.9K0.01%+16+1.5%Added
Net Worth Advisory Group1,076$990.6K0.29%−296−21.6%Reduced
Parkside Financial Bank & Trust1,070$985.1K0.08%−66−5.8%Reduced
JT Stratford LLC1,063$978.6K0.13%−751−41.4%Reduced
Kingsview Wealth Management, LLC1,044$961.1K0.01%+14+1.4%Added
Portside Wealth Group, LLC1,022$940.9K0.13%+3+0.3%Added
Sheets Smith Wealth Management1,021$940.0K0.11%+621+155.3%Added
Inscription Capital, LLC1,016$935.4K0.10%+417+69.6%Added
KPP Advisory Services LLC1,013$932.7K0.14%+15+1.5%Added
K.J. Harrison & Partners Inc1,000$930.5K0.13%+1,000New
RMR Wealth Builders1,004$924.3K0.08%−163−14.0%Reduced
Bridgefront Capital, LLC1,001$921.6K0.27%+1,001New
Citizens Financial Group Inc994$915.0K0.01%+63+6.8%Added
Skopos Labs, Inc.1,228$903.6K0.12%−29−2.3%Reduced
Ci Investments Inc.976$899.0K0.00%−8−0.8%Reduced
CTC Alternative Strategies, Ltd.974$896.7K1.49%+974New
Aaron Wealth Advisors973$895.8K0.05%+432+79.9%Added
Merit Financial Group, LLC971$893.6K0.01%+7+0.7%Added
American Trust967$890.3K0.08%+585+153.1%Added
Advisory Services Network, LLC967$890.1K0.01%+127+15.1%Added
Dogwood Wealth Management LLC950$874.6K0.40%+947+31,566.7%Added
Prosperity Financial Group, Inc.946$870.9K0.32%+67+7.6%Added
Virtue Capital Management, LLC944$868.7K0.19%+368+63.9%Added
TownSquare Capital, LLC938$863.6K0.13%−1,001−51.6%Reduced
First National Bank of Hutchinson937$862.6K0.46%+937New
Vise Technologies, Inc.935$861.2K0.03%+28+3.1%Added
Cidel Asset Management Inc935$860.8K0.05%−414−30.7%Reduced
Vestcor Inc933$859.0K0.03%00.0%Unchanged
Brookstone Capital Management932$857.8K0.01%+932New
Ronald Blue Trust, Inc.926$852.1K0.01%+20+2.2%Added
MUFG Securities EMEA plc917$844.2K0.02%+776+550.4%Added
Independent Financial Group, LLC911$838.7K0.02%+197+27.6%Added
J2 Capital Management Inc910$837.8K0.63%+129+16.5%Added
Mather Group, LLC.904$832.3K0.01%+147+19.4%Added
Equitable Holdings, Inc.901$829.5K0.01%+216+31.5%Added
Clearstead Advisors, LLC900$828.6K0.01%−65−6.7%Reduced
Brevan Howard Capital Management LP895$824.0K0.01%−2,764−75.5%Reduced
Banco Santander, S.A.892$821.2K0.01%−251−22.0%Reduced
Canada Post Corp Registered Pension Plan920$815.7K0.04%+210+29.6%Added
NorthRock Partners, LLC882$812.5K0.01%+120+15.7%Added
Steel Peak Wealth Management LLC877$808.8K0.03%−17−1.9%Reduced
Huntington National Bank875$805.6K0.00%+278+46.6%Added
Integrated Advisors Network LLC869$800.0K0.03%+559+180.3%Added
Shaker Investments LLC857$789.0K0.32%−4−0.5%Reduced
Drake & Associates, LLC781$781.1K0.16%+781New
Prime Capital Investment Advisors, LLC844$776.9K0.01%−15−1.7%Reduced
We Are One Seven, LLC842$775.2K0.02%+191+29.3%Added
Signaturefd, LLC836$769.8K0.01%+29+3.6%Added
Cannon Advisors, Inc.717$767.8K0.52%00.0%Unchanged
Moneta Group Investment Advisors LLC831$765.2K0.01%+88+11.8%Added
Morey & Quinn Wealth Partners, LLC830$764.1K0.56%−100−10.8%Reduced
Bessemer Group Inc823$757.0K0.00%+35+4.4%Added
Vestmark Advisory Solutions, Inc.814$749.4K0.01%+34+4.4%Added
Financial Advisory Corp807$743.0K0.21%+151+23.0%Added
Verdence Capital Advisors LLC668$737.8K0.04%−316−32.1%Reduced
CNB Bank793$730.1K0.30%−38−4.6%Reduced
Siemens Fonds Invest GmbH785$722.7K0.04%−18−2.2%Reduced
Principal Securities, Inc.783$721.2K0.01%+75+10.6%Added
Whalen Wealth Management Inc.780$717.8K0.42%−1,230−61.2%Reduced
Unique Wealth Strategies, LLC775$713.8K0.28%−91−10.5%Reduced
Green Alpha Advisors, LLC772$710.8K0.69%−31−3.9%Reduced
Left Brain Wealth Management, LLC770$708.9K0.22%+770New
Fortress Financial Solutions, LLC740$681.2K0.74%+31+4.4%Added
Global Retirement Partners, LLC736$677.6K0.02%+107+17.0%Added
HMS Capital Management, LLC728$670.5K0.28%−290−28.5%Reduced
Burns Matteson Capital Management, LLC722$664.7K0.28%−15−2.0%Reduced
MJP Associates Inc713$656.8K0.09%−112−13.6%Reduced
Syon Capital LLC713$656.5K0.04%+157+28.2%Added
Simplex Trading, LLC710$653.0K0.01%+370+108.8%Added
Fiduciary Trust Co709$652.5K0.01%+112+18.8%Added
Schonfeld Strategic Advisors LLC700$644.4K0.00%−326−31.8%Reduced
SummitTX Capital, L.P.700$644.4K0.03%+700New
Central Trust Co691$636.1K0.01%−21−2.9%Reduced
Wolverine Trading, LLC714$633.0K0.01%+347+94.6%Added
Summit Wealth Group LLC1,366$631.0K0.09%+1,366New
Voleon Capital Management LP682$627.9K0.02%+313+84.8%Added
Apollon Wealth Management, LLC678$624.4K0.01%−211−23.7%Reduced
Insigneo Advisory Services, LLC674$620.5K0.04%−66−8.9%Reduced
Valeo Financial Advisors, LLC671$618.1K0.01%−68−9.2%Reduced
Pitcairn Co670$616.8K0.05%−636−48.7%Reduced
Stevens Capital Management LP668$615.0K0.08%+389+139.4%Added
Oak Ridge Investments LLC668$615.0K0.04%+6+0.9%Added
Riverstone Advisors, LLC668$615.0K0.30%+70+11.7%Added
Cynosure Management, LLC664$611.3K0.07%00.0%Unchanged
Gilbert & Cook, Inc.663$610.4K0.08%+8+1.2%Added
Chicago Partners Investment Group LLC558$606.3K0.02%+33+6.3%Added
Brighton Jones LLC656$604.2K0.01%+3+0.5%Added
Farther Finance Advisors, LLC655$602.6K0.01%+121+22.7%Added