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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 2026

Institutional positions in Monolithic Power Systems, Inc. as of Jun 30, 2026. 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
1,250
+142 vs. Q1 2026
Shares held
47.6M
+386.8K (+0.8%) vs. Q1 2026
Total value
$65.6B
+$14.1B (+27.4%) vs. Q1 2026
New holders
220
419 more added
Sold out
78
464 more reduced

16 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: 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 2026: 1,250 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 2026: $65.6B
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 2026

Shares, value and share of portfolio for each institution holding Monolithic Power Systems, Inc.; share changes are against Q1 2026.

Institutions holding MPWR in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
L2 Asset Management, LLC270$373.2K0.04%+21+8.4%Added
Globeflex Capital L P271$374.6K0.05%00.0%Unchanged
E Fund Management (Hong Kong) Co., Ltd.271$374.6K0.12%+84+44.9%Added
Drive Wealth Management, LLC271$375.3K0.07%+11+4.2%Added
Sharpepoint LLC272$376.0K0.19%00.0%Unchanged
Catalyst Financial Partners LLC272$376.0K0.04%+20+7.9%Added
Cary Street Partner Investment Advisory LLC273$377.0K0.08%+18+7.1%Added
Johnson Financial Group, Inc.274$379.3K0.01%−47−14.6%Reduced
Total Clarity Wealth Management, Inc.275$380.1K0.07%−196−41.6%Reduced
Ritholtz Wealth Management276$381.8K0.01%+276New
BlackDiamond Wealth Management Inc.278$383.9K0.16%+94+51.1%Added
Aristides Capital LLC278$384.3K0.10%+278New
Ofi Invest Asset Management318$384.5K0.00%+13+4.3%Added
Teza Capital Management LLC279$385.7K0.74%+279New
Premier Path Wealth Partners, LLC280$387.1K0.04%+6+2.2%Added
Miracle Mile Advisors, LLC281$388.0K0.00%+26+10.2%Added
Asahi Life Asset Management Co., Ltd.282$389.8K0.22%+282New
Davenport & Co LLC283$391.2K0.00%−7−2.4%Reduced
Integrated Investment Consultants, LLC283$391.2K0.08%00.0%Unchanged
Axxion S.A.283$391.2K0.03%+283New
Angeles Wealth Management, LLC285$394.5K0.02%+27+10.5%Added
Ground Swell Capital, LLC286$395.4K0.43%+286New
West Family Investments, Inc.288$398.1K0.12%+20+7.5%Added
Tributary Capital Management, LLC290$400.9K0.03%−100−25.6%Reduced
Coyle Financial Counsel LLC290$400.9K0.07%+29+11.1%Added
Wealthcare Advisory Partners LLC290$400.9K0.01%−48−14.2%Reduced
Optas, LLC295$407.8K0.06%−11−3.6%Reduced
Livforsakringsbolaget Skandia, Omsesidigt295$407.8K0.01%−70−19.2%Reduced
OpenArc Corporate Advisory, LLC296$409.2K0.00%+12+4.2%Added
Oakmont Advisory Group, LLC297$410.0K0.34%−46−13.4%Reduced
MJP Associates Inc298$411.6K0.05%−12−3.9%Reduced
SmartHarvest Portfolios, LLC299$413.2K0.13%+16+5.7%Added
Eq LLC299$414.0K0.10%00.0%Unchanged
Sheets Smith Wealth Management301$416.1K0.04%00.0%Unchanged
MCF Advisors LLC302$417.6K0.01%+1+0.3%Added
George Kaiser Family Foundation303$418.9K0.04%−344−53.2%Reduced
Wealthspire Advisors, LLC304$420.4K0.00%+304New
Opal Capital LLC306$423.0K0.08%+306New
WP Advisors, LLC310$428.0K0.10%+1+0.3%Added
TigerOak Management, L.L.C.310$428.5K0.12%−5−1.6%Reduced
Resonant Capital Advisors, LLC311$430.5K0.02%+15+5.1%Added
SBI Okasan Asset Management Co.Ltd.328$430.6K0.01%+135+69.9%Added
Sowell Financial Services LLC312$432.0K0.01%−35−10.1%Reduced
Financial Consulate, Inc313$432.7K0.05%−37−10.6%Reduced
TCG Advisory Services, LLC314$434.1K0.01%+1+0.3%Added
CWA Asset Management Group, LLC314$434.1K0.01%+70+28.7%Added
Supplemental Annuity Collective Trust of NJ315$435.4K0.11%−9−2.8%Reduced
Gladstone Institutional Advisory LLC315$435.4K0.01%+51+19.3%Added
Uhlmann Price Securities, LLC316$437.0K0.02%−97−23.5%Reduced
Silver Oak Securities, Inc320$442.4K0.03%−43−11.8%Reduced
NorthStar Asset Management LLC322$445.1K0.18%00.0%Unchanged
Drake & Associates, LLC324$448.0K0.08%−207−39.0%Reduced
Mission Wealth Management, LP328$453.3K0.01%+328New
BankChampaign, National Association331$457.6K0.35%+139+72.4%Added
Science & Technology Partners, L.P.332$458.9K0.08%+332New
Dorsey & Whitney Trust CO LLC332$459.5K0.02%−1−0.3%Reduced
Stevens Capital Management LP333$460.0K0.11%+333New
Chilton Investment Co LLC334$461.7K0.01%+334New
Checchi Capital Advisers, LLC335$463.1K0.03%+1+0.3%Added
Prakash Investment Advisors LLC340$470.0K0.29%−60−15.0%Reduced
AMG National Trust Bank340$470.0K0.01%00.0%Unchanged
CX Institutional343$474.0K0.01%+31+9.9%Added
WBI Investments343$474.3K0.12%+50+17.1%Added
Elevate Capital Advisors, LLC345$476.9K0.26%−52−13.1%Reduced
Quantessence Capital LLC350$483.8K1.42%+350New
Foundations Investment Advisors, LLC351$485.7K0.01%+37+11.8%Added
Clearwave Capital, LLC355$491.3K0.27%+13+3.8%Added
TD Waterhouse Canada Inc.373$496.5K0.00%+16+4.5%Added
Ewa, LLC360$497.2K0.09%+6+1.7%Added
Pinebridge Investments LLC364$503.2K0.00%+364New
Unique Wealth Strategies, LLC366$505.5K0.18%+366New
Turner Financial Group, Inc.366$505.8K0.50%+366New
Mach-1 Financial Group, Inc.368$508.7K0.20%−244−39.9%Reduced
SBI Securities Co., Ltd.369$510.1K0.01%+65+21.4%Added
Himension Fund369$510.1K0.03%+369New
Sigma Planning Corp372$514.0K0.01%−42−10.1%Reduced
Resources Investment Advisors, LLC.375$517.8K0.00%+60+19.0%Added
Sumitomo Life Insurance Co375$518.4K0.01%+375New
Marex Group plc384$530.8K0.00%−308−44.5%Reduced
Sovran Advisors, LLC414$530.8K0.04%−9−2.1%Reduced
Gsa Capital Partners LLP385$532.0K0.03%+385New
Buffalo Business & Estate Services Ltd–$532.6K0.07%––
Legacy Capital Wealth Partners, LLC386$533.6K0.10%+386New
Triad Wealth Partners, LLC398$535.1K0.03%−663−62.5%Reduced
Bridgefront Capital, LLC388$536.4K0.14%+388New
Verdence Capital Advisors LLC392$542.4K0.03%−67−14.6%Reduced
S-Bank Fund Management Ltd393$543.3K0.07%+30+8.3%Added
American National Bank399$551.5K0.05%00.0%Unchanged
Kera Capital Partners, Inc.399$551.6K0.05%−32−7.4%Reduced
Sather Financial Group Inc400$552.9K0.03%00.0%Unchanged
Caxton Associates LLP400$552.9K0.01%+400New
Marshall Financial Group LLC402$555.7K0.08%−87−17.8%Reduced
Spire Wealth Management405$559.9K0.02%−6−1.5%Reduced
111 Capital406$561.2K0.10%−258−38.9%Reduced
Voleon Capital Management LP408$564.0K0.01%−1,022−71.5%Reduced
Guinness Asset Management LTD415$573.7K0.01%+20+5.1%Added
Summit Place Financial Advisors, LLC419$579.2K0.25%−938−69.1%Reduced
AlphaCore Capital LLC420$580.6K0.01%+134+46.9%Added
Advisor OS, LLC422$583.0K0.04%−115−21.4%Reduced
Mainstay Capital Management LLC427$590.3K0.04%−16−3.6%Reduced