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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, Q2 2025

Institutional positions in Monolithic Power Systems, Inc. as of Jun 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
907
+55 vs. Q1 2025
Shares held
47.4M
+747.4K (+1.6%) vs. Q1 2025
Total value
$34.6B
+$7.61B (+28.2%) vs. Q1 2025
New holders
139
376 more added
Sold out
84
299 more reduced

10 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 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 holdersQ2 2025: 907 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 heldQ2 2025: $34.6B
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, Q2 2025

Shares, value and share of portfolio for each institution holding Monolithic Power Systems, Inc.; share changes are against Q1 2025.

Institutions holding MPWR in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Quest 10 Wealth Builders, Inc.0$3440.00%0Unchanged
Horizon Financial Services, LLC1$7310.00%00.0%Unchanged
First Command Advisory Services, Inc.1$7310.00%00.0%Unchanged
Bare Financial Services, Inc1$7310.00%00.0%Unchanged
Pinpoint Asset Management (Singapore) Pte. Ltd.1$7310.00%+1New
SJS Investment Consulting Inc.1$7320.00%−7−87.5%Reduced
TFC Financial Management1$7320.00%−1−50.0%Reduced
Quaker Wealth Management, LLC1$7320.00%+1New
Stephens Consulting, LLC1$7320.00%+1New
IMA Wealth, Inc.1$7330.00%+1New
DecisionPoint Financial, LLC1$7470.00%+1New
PEAK6 LLC1$7830.00%−1−50.0%Reduced
Colonial Trust Co2$1.27K0.00%−2−50.0%Reduced
Smallwood Wealth Investment Management, LLC2$1.46K0.00%+2New
Trifecta Capital Advisors, LLC2$1.46K0.00%00.0%Unchanged
Parkworth Wealth Management, Inc.2$1.46K0.00%+1+100.0%Added
Plante Moran Financial Advisors, LLC2$1.46K0.00%+2New
Princeton Global Asset Management LLC2$1.46K0.00%+2New
UMA Financial Services, Inc.2$1.46K0.00%+2New
Pineridge Advisors LLC2$1.46K0.00%+2New
Rialto Wealth Management, LLC2$1.46K0.00%+2New
Bay Harbor Wealth Management, LLC2$1.47K0.00%+1+100.0%Added
Brown, Lisle/Cummings, Inc.3$1.90K0.00%+1+50.0%Added
Capital Advisors, Ltd. LLC3$2.00K0.00%00.0%Unchanged
Creative Financial Designs Inc3$2.19K0.00%−4−57.1%Reduced
Longfellow Investment Management Co LLC3$2.19K0.00%00.0%Unchanged
Crews Bank & Trust3$2.19K0.00%00.0%Unchanged
Principia Wealth Advisory, LLC3$2.19K0.00%00.0%Unchanged
Ancora Advisors, LLC3$2.19K0.00%+2+200.0%Added
Tortoise Investment Management, LLC3$2.19K0.00%+3New
Grove Bank & Trust3$2.19K0.00%+3New
Albion Financial Group3$2.19K0.00%00.0%Unchanged
ORG Partners LLC3$2.24K0.00%−5−62.5%Reduced
Dogwood Wealth Management LLC3$2.28K0.00%+1+50.0%Added
Cary Street Partners Financial LLC4$2.93K0.00%−8−66.7%Reduced
State of Wyoming4$2.93K0.00%+4New
Ameritas Advisory Services, LLC4$2.93K0.00%+4New
NBC Securities, Inc.5$3.00K0.00%00.0%Unchanged
Kozak & Associates, Inc.4$3.03K0.00%00.0%Unchanged
Dunhill Financial, LLC4$3.25K0.00%−2−33.3%Reduced
Abound Wealth Management5$3.37K0.00%−1−16.7%Reduced
Garde Capital, Inc.5$3.66K0.00%00.0%Unchanged
Bruce G. Allen Investments, LLC5$3.66K0.00%00.0%Unchanged
DiNuzzo Private Wealth, Inc.5$3.66K0.00%+3+150.0%Added
Hoey Investments, Inc5$3.66K0.00%+5New
PFS Partners, LLC5$3.66K0.00%+5New
Kilter Group LLC5$3.66K0.00%+5New
Prestige Wealth Management Group LLC5$3.67K0.00%00.0%Unchanged
Cranbrook Wealth Management, LLC5$3.80K0.00%+3+150.0%Added
Smithfield Trust Co5$4.00K0.00%00.0%Unchanged
Hughes Financial Services, LLC5$4.03K0.00%+2+66.7%Added
Activest Wealth Management6$4.39K0.00%−2−25.0%Reduced
Whipplewood Advisors, LLC6$4.39K0.00%−785−99.2%Reduced
Proffitt & Goodson Inc6$4.39K0.00%00.0%Unchanged
Legacy Wealth Managment, LLC6$4.39K0.00%00.0%Unchanged
Legacy Investment Solutions, LLC6$4.39K0.00%+6New
Mowery & Schoenfeld Wealth Management, LLC6$4.40K0.01%−1−14.3%Reduced
Bartlett & Co. Wealth Management LLC6$4.40K0.00%+6New
Westside Investment Management, Inc.6$4.48K0.00%00.0%Unchanged
Concord Wealth Partners7$5.12K0.00%+1+16.7%Added
WealthCollab, LLC7$5.12K0.00%+2+40.0%Added
Total Investment Management Inc7$5.12K0.00%+7New
Cornerstone Planning Group LLC7$5.62K0.00%+1+16.7%Added
Crowley Wealth Management, Inc.8$5.85K0.01%00.0%Unchanged
First Pacific Financial8$5.85K0.00%+8New
Financial Network Wealth Advisors LLC8$5.86K0.01%00.0%Unchanged
Beacon Capital Management, LLC8$5.88K0.00%00.0%Unchanged
Sound Income Strategies, LLC9$6.58K0.00%00.0%Unchanged
Logan Capital Management Inc9$6.58K0.00%00.0%Unchanged
Atlantic Trust, LLC9$6.58K0.00%00.0%Unchanged
WealthTrak Capital Management LLC9$6.58K0.01%+4+80.0%Added
Financial Management Professionals, Inc.9$6.60K0.00%00.0%Unchanged
Berkshire Capital Holdings Inc10$7.31K0.00%00.0%Unchanged
Howard Hughes Medical Institute10$7.31K0.00%+10New
CBIZ Investment Advisory Services, LLC10$7.33K0.00%+10New
Eastern Bank11$8.04K0.00%−2−15.4%Reduced
Cetera Trust Company, N.A11$8.04K0.00%00.0%Unchanged
Atwood & Palmer Inc12$8.78K0.00%00.0%Unchanged
Webster Bank, N. A.12$8.78K0.00%00.0%Unchanged
North Capital, Inc.12$8.78K0.01%00.0%Unchanged
Sunbelt Securities, Inc.16$9.47K0.00%+4+33.3%Added
Fortitude Family Office, LLC13$9.51K0.00%+4+44.4%Added
Sachetta, LLC13$9.52K0.00%−2−13.3%Reduced
Avion Wealth14$10.0K0.00%+9+180.0%Added
Highline Wealth Partners LLC14$10.2K0.00%+2+16.7%Added
Pacific Center for Financial Services14$10.2K0.00%00.0%Unchanged
Armstrong Advisory Group, Inc14$10.3K0.00%+4+40.0%Added
JFS Wealth Advisors, LLC15$11.0K0.00%+4+36.4%Added
Riggs Asset Managment Co. Inc.15$11.0K0.00%+13+650.0%Added
Rakuten Securities, Inc.16$11.7K0.00%−253−94.1%Reduced
Bogart Wealth, LLC17$12.4K0.00%+2+13.3%Added
Raffa Wealth Management, LLC17$12.4K0.00%+16+1,600.0%Added
Atlantic Union Bankshares Corp17$12.4K0.00%+17New
True Wealth Design, LLC18$13.0K0.00%−17−48.6%Reduced
TCTC Holdings, LLC18$13.2K0.00%−20−52.6%Reduced
Rexford Capital Inc19$13.9K0.01%+19New
Morgan Dempsey Capital Management LLC19$13.9K0.01%00.0%Unchanged
Berbice Capital Management LLC20$14.6K0.01%00.0%Unchanged
Barnes Dennig Private Wealth Management LLC20$14.6K0.02%+20New
Twin Peaks Wealth Advisors, LLC18$15.1K0.00%+18New