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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 8 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
Navigoe, LLC1$00.00%+1New
Strengthening Families & Communities, LLC0$850.00%0New
Turning Point Benefit Group, Inc.1$9150.00%+1New
DecisionPoint Financial, LLC1$9160.00%00.0%Unchanged
Quaker Wealth Management, LLC1$9210.00%00.0%Unchanged
TFC Financial Management1$9210.00%00.0%Unchanged
Texas Capital Bancshares Inc1$9210.00%+1New
North Star Investment Management Corp.1$9210.00%+1New
WestEnd Advisors, LLC1$9210.00%+1New
Palisade Asset Management, LLC1$9210.00%+1New
Hurley Capital, LLC1$9210.00%+1New
Breakwater Investment Management1$9210.00%+1New
HFM Investment Advisors, LLC1$9210.00%+1New
Bartlett & Co. Wealth Management LLC1$9220.00%−5−83.3%Reduced
IMA Wealth, Inc.1$9220.00%00.0%Unchanged
PEAK6 LLC1$1.24K0.00%00.0%Unchanged
Colonial Trust Co2$1.60K0.00%00.0%Unchanged
Raffa Wealth Management, LLC2$1.84K0.00%−15−88.2%Reduced
Bay Harbor Wealth Management, LLC2$1.84K0.00%00.0%Unchanged
Princeton Global Asset Management LLC2$1.84K0.00%00.0%Unchanged
Aspect Partners, LLC2$1.84K0.00%+2New
Binnacle Investments Inc2$1.84K0.00%+2New
Trifecta Capital Advisors, LLC2$1.84K0.00%00.0%Unchanged
Bare Financial Services, Inc2$1.84K0.00%+1+100.0%Added
ZRC Wealth Management, LLC2$1.84K0.00%+2New
Retirement Wealth Solutions LLC2$1.84K0.00%+2New
Brown, Lisle/Cummings, Inc.3$2.39K0.00%00.0%Unchanged
Beaird Harris Wealth Management, LLC3$2.41K0.00%+3New
Albion Financial Group3$2.76K0.00%00.0%Unchanged
Creative Financial Designs Inc3$2.76K0.00%00.0%Unchanged
Longfellow Investment Management Co LLC3$2.76K0.00%00.0%Unchanged
Ancora Advisors, LLC3$2.76K0.00%00.0%Unchanged
Grove Bank & Trust3$2.76K0.00%00.0%Unchanged
Principia Wealth Advisory, LLC3$2.76K0.00%00.0%Unchanged
Crews Bank & Trust3$2.76K0.00%00.0%Unchanged
Rialto Wealth Management, LLC3$2.76K0.00%+1+50.0%Added
Advanced Portfolio Management, LLC3$2.76K0.01%+3New
Mountain Hill Investment Partners Corp.3$2.76K0.00%+3New
Capital Advisors, Ltd. LLC3$3.00K0.00%00.0%Unchanged
Kozak & Associates, Inc.4$3.64K0.00%00.0%Unchanged
State of Wyoming4$3.68K0.00%00.0%Unchanged
Tortoise Investment Management, LLC4$3.68K0.00%+1+33.3%Added
Cloud Capital Management, LLC5$4.00K0.00%+5New
Dunhill Financial, LLC4$4.10K0.00%00.0%Unchanged
DiNuzzo Private Wealth, Inc.5$4.18K0.00%00.0%Unchanged
Abound Wealth Management5$4.25K0.00%00.0%Unchanged
Bruce G. Allen Investments, LLC5$4.60K0.00%00.0%Unchanged
NBC Securities, Inc.5$4.60K0.00%00.0%Unchanged
Altshuler Shaham Ltd5$4.60K0.00%+5New
Hoey Investments, Inc5$4.60K0.00%00.0%Unchanged
Kilter Group LLC5$4.60K0.00%00.0%Unchanged
Marquette Asset Management, LLC5$4.60K0.00%+5New
Cape Investment Advisory, Inc.5$4.60K0.00%+5New
Prestige Wealth Management Group LLC5$4.61K0.00%00.0%Unchanged
PFS Partners, LLC5$4.61K0.00%00.0%Unchanged
Grey Fox Wealth Advisors, LLC5$4.70K0.00%+5New
Cranbrook Wealth Management, LLC5$4.79K0.00%00.0%Unchanged
Hughes Financial Services, LLC5$4.88K0.00%00.0%Unchanged
Westside Investment Management, Inc.6$5.50K0.00%00.0%Unchanged
Pineridge Advisors LLC6$5.52K0.00%+4+200.0%Added
Mowery & Schoenfeld Wealth Management, LLC6$5.54K0.01%00.0%Unchanged
Sofos Investments, Inc.6$5.54K0.00%+6New
ORG Partners LLC7$6.44K0.00%+4+133.3%Added
Concord Wealth Partners7$6.44K0.00%00.0%Unchanged
WealthCollab, LLC7$6.45K0.00%00.0%Unchanged
JPL Wealth Management, LLC7$6.45K0.00%+7New
Quest 10 Wealth Builders, Inc.7$6.88K0.01%+7Added
Crowley Wealth Management, Inc.8$7.37K0.01%00.0%Unchanged
Wealth Watch Advisors, INC8$7.37K0.00%+8New
First Pacific Financial8$7.37K0.00%00.0%Unchanged
Proffitt & Goodson Inc8$7.37K0.00%+2+33.3%Added
Financial Network Wealth Advisors LLC8$7.39K0.01%00.0%Unchanged
Manchester Capital Management LLC9$8.29K0.00%−137−93.8%Reduced
South State Corp.9$8.29K0.00%−16−64.0%Reduced
Atlantic Trust, LLC9$8.29K0.00%00.0%Unchanged
Logan Capital Management Inc9$8.29K0.00%00.0%Unchanged
Asset Dedication, LLC9$8.29K0.00%+9New
Financial Management Professionals, Inc.9$8.30K0.00%00.0%Unchanged
Sound Income Strategies, LLC9$8.81K0.00%00.0%Unchanged
Howard Hughes Medical Institute10$9.21K0.01%00.0%Unchanged
Berkshire Capital Holdings Inc10$9.21K0.00%00.0%Unchanged
Activest Wealth Management10$9.21K0.00%+4+66.7%Added
TruNorth Capital Management, LLC10$9.21K0.00%+10New
IAG Wealth Partners, LLC10$9.21K0.00%+10New
Crewe Advisors LLC10$9.21K0.00%+10New
Eastern Bank11$10.1K0.00%00.0%Unchanged
Cetera Trust Company, N.A11$10.1K0.01%00.0%Unchanged
Sunbelt Securities, Inc.12$11.0K0.00%−4−25.0%Reduced
Atwood & Palmer Inc12$11.0K0.00%00.0%Unchanged
Webster Bank, N. A.12$11.0K0.00%00.0%Unchanged
Halbert Hargrove Global Advisors, LLC12$11.0K0.00%+12New
CBIZ Investment Advisory Services, LLC12$11.1K0.00%+2+20.0%Added
Fortitude Family Office, LLC13$12.0K0.00%00.0%Unchanged
Pacific Center for Financial Services14$12.9K0.00%00.0%Unchanged
Highline Wealth Partners LLC14$12.9K0.00%00.0%Unchanged
North Capital, Inc.14$12.9K0.01%+2+16.7%Added
Transamerica Financial Advisors, Inc.15$12.9K0.00%+15New
JFS Wealth Advisors, LLC15$13.8K0.00%00.0%Unchanged
UMA Financial Services, Inc.15$13.8K0.00%+13+650.0%Added
Imprint Wealth LLC16$14.7K0.05%+16New