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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, Q1 2026

Institutional positions in Monolithic Power Systems, Inc. as of Mar 31, 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
1,124
+80 vs. Q4 2025
Shares held
47.3M
+5.32M (+12.7%) vs. Q4 2025
Total value
$51.6B
+$13.6B (+35.9%) vs. Q4 2025
New holders
181
384 more added
Sold out
101
408 more reduced

17 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2026: 1,124 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 heldQ1 2026: $51.6B
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, Q1 2026

Shares, value and share of portfolio for each institution holding Monolithic Power Systems, Inc.; share changes are against Q4 2025.

Institutions holding MPWR in Q1 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Angeles Wealth Management, LLC258$282.6K0.02%+258New
Tradition Wealth Management, LLC259$283.2K0.02%+4+1.6%Added
Naviter Wealth, LLC259$283.7K0.04%+5+2.0%Added
Drive Wealth Management, LLC260$284.8K0.06%+35+15.6%Added
Coyle Financial Counsel LLC261$285.4K0.06%+3+1.2%Added
Verition Fund Management LLC263$287.6K0.00%−5,660−95.6%Reduced
Gladstone Institutional Advisory LLC264$288.6K0.01%00.0%Unchanged
Royal Fund Management, LLC264$288.6K0.03%+7+2.7%Added
Ofi Invest Asset Management305$289.4K0.00%+77+33.8%Added
Gallacher Capital Management LLC265$289.7K0.11%+265New
Keating Financial Advisory Services, Inc.268$293.0K0.05%−1,177−81.5%Reduced
West Family Investments, Inc.268$293.0K0.10%−2−0.7%Reduced
International Assets Investment Management, LLC263$294.3K0.02%−10−3.7%Reduced
Globeflex Capital L P271$296.3K0.04%00.0%Unchanged
Koshinski Asset Management, Inc.272$297.2K0.02%+272New
Sharpepoint LLC272$297.4K0.18%+1+0.4%Added
Tuttle Tactical Management272$297.4K0.49%+272New
Concentric Capital Strategies, LP274$299.6K0.03%+274New
Premier Path Wealth Partners, LLC274$299.6K0.04%+274New
Advisory Alpha, LLC274$299.6K0.01%−166−37.7%Reduced
McAdam, LLC275$300.5K0.01%+14+5.4%Added
SageView Advisory Group, LLC276$301.8K0.01%−26−8.6%Reduced
BankPlus Wealth Management LLC279$306.0K0.16%−55−16.5%Reduced
Board of the Pension Protection Fund280$306.1K0.28%+280New
Integrated Investment Consultants, LLC283$309.4K0.07%00.0%Unchanged
SmartHarvest Portfolios, LLC283$309.4K0.13%−26−8.4%Reduced
OpenArc Corporate Advisory, LLC284$310.5K0.00%+58+25.7%Added
AlphaCore Capital LLC286$312.7K0.01%−17−5.6%Reduced
New Hampshire Trust290$317.1K0.06%−57−16.4%Reduced
Davenport & Co LLC290$317.1K0.00%+15+5.5%Added
CoreCap Advisors, LLC290$318.0K0.01%−702−70.8%Reduced
Walleye Capital LLC293$320.4K0.00%+105+55.9%Added
Pinpoint Asset Management (Singapore) Pte. Ltd.293$320.4K0.08%+292+29,200.0%Added
WBI Investments293$320.7K0.09%−585−66.6%Reduced
Millington Securities, LLC293$320.7K0.09%+293New
Vinva Investment Management Ltd320$320.7K0.00%+320New
Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.295$322.5K0.79%−1,121−79.2%Reduced
Resonant Capital Advisors, LLC296$324.2K0.02%+43+17.0%Added
Cornerstone Wealth Group, LLC213$325.8K0.02%+213New
Eq LLC299$327.4K0.09%+20+7.2%Added
Procyon Private Wealth Partners, LLC300$328.0K0.02%+6+2.0%Added
Sheets Smith Wealth Management301$329.1K0.04%00.0%Unchanged
MCF Advisors LLC301$330.1K0.01%+58+23.9%Added
SBI Securities Co., Ltd.304$332.4K0.01%−8−2.6%Reduced
Optas, LLC306$334.6K0.05%−89−22.5%Reduced
WP Advisors, LLC309$338.0K0.09%−112−26.6%Reduced
MJP Associates Inc310$338.7K0.04%−296−48.8%Reduced
CX Institutional312$341.0K0.01%+3+1.0%Added
TCG Advisory Services, LLC313$342.2K0.01%+44+16.4%Added
Foundations Investment Advisors, LLC314$343.2K0.00%−209−40.0%Reduced
TigerOak Management, L.L.C.315$344.4K0.11%00.0%Unchanged
Resources Investment Advisors, LLC.315$344.7K0.00%−58−15.5%Reduced
Cresset Asset Management, LLC317$347.5K0.00%−47−12.9%Reduced
Ashton Thomas Private Wealth, LLC318$347.7K0.01%+84+35.9%Added
Aigen Investment Management, LP320$349.9K0.09%+320New
Blueshift Asset Management, LLC321$351.0K0.11%−293−47.7%Reduced
Johnson Financial Group, Inc.321$351.6K0.01%+34+11.8%Added
NorthStar Asset Management LLC322$352.1K0.17%−80−19.9%Reduced
Supplemental Annuity Collective Trust of NJ324$354.2K0.10%+324New
Insigneo Advisory Services, LLC327$357.5K0.03%−180−35.5%Reduced
Simplicity Wealth,LLC327$358.0K0.02%+56+20.7%Added
Moors & Cabot, Inc.330$360.8K0.02%+10+3.1%Added
Dorsey & Whitney Trust CO LLC333$364.6K0.02%+8+2.5%Added
Checchi Capital Advisers, LLC334$365.2K0.03%+70+26.5%Added
Andra AP-fonden335$366.3K0.00%−4,965−93.7%Reduced
Ausdal Financial Partners, Inc.337$368.1K0.02%+337New
Wealthcare Advisory Partners LLC338$369.6K0.01%+338New
AMG National Trust Bank340$371.7K0.01%00.0%Unchanged
Journey Strategic Wealth LLC340$371.7K0.01%+43+14.5%Added
Brevan Howard Capital Management LP341$372.8K0.00%+341New
Clearwave Capital, LLC342$373.9K0.26%+342New
Oakmont Advisory Group, LLC343$374.9K0.38%−33−8.8%Reduced
First Affirmative Financial Network346$378.8K0.15%+346New
Sowell Financial Services LLC347$379.9K0.01%−6−1.7%Reduced
Financial Consulate, Inc350$382.7K0.05%−178−33.7%Reduced
Dogwood Wealth Management LLC352$384.9K0.17%−280−44.3%Reduced
Ethos Financial Group, LLC353$386.7K0.03%+23+7.0%Added
Ewa, LLC354$387.3K0.09%+4+1.1%Added
Mizuho Markets Americas LLC355$388.1K0.01%+355New
OneAscent Investment Solutions LLC359$392.5K0.39%+11+3.2%Added
Bridgewater Advisors Inc.247$393.9K0.02%+4+1.6%Added
Frank, Rimerman Advisors LLC361$394.7K0.03%+18+5.2%Added
Silver Oak Securities, Inc363$396.9K0.03%+14+4.0%Added
S-Bank Fund Management Ltd363$396.9K0.06%−13−3.5%Reduced
TD Waterhouse Canada Inc.357$399.3K0.00%+192+116.4%Added
Livforsakringsbolaget Skandia, Omsesidigt365$399.4K0.02%00.0%Unchanged
Bauman Advisory Group, LLC377$412.2K0.29%+377New
Western Financial Corp385$420.9K0.16%+385New
Savvy Advisors, Inc.388$424.3K0.01%+165+74.0%Added
Tributary Capital Management, LLC390$426.4K0.04%00.0%Unchanged
Guinness Asset Management LTD395$431.9K0.01%−28−6.6%Reduced
Calamos Wealth Management LLC397$434.1K0.01%−83−17.3%Reduced
Elevate Capital Advisors, LLC397$434.1K0.28%+397New
American National Bank399$436.2K0.04%−14−3.4%Reduced
Turtle Creek Wealth Advisors, LLC399$436.2K0.03%+70+21.3%Added
Sather Financial Group Inc400$437.3K0.03%00.0%Unchanged
Prakash Investment Advisors LLC400$437.3K0.37%00.0%Unchanged
Beverly Hills Private Wealth, LLC409$447.4K0.07%−14−3.3%Reduced
GLR Partners, LLC410$448.3K0.24%+410New
Spire Wealth Management411$449.4K0.02%−278−40.3%Reduced