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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
Board of the Pension Protection Fund280$306.1K0.28%+280New
BankPlus Wealth Management LLC279$306.0K0.16%−55−16.5%Reduced
SageView Advisory Group, LLC276$301.8K0.01%−26−8.6%Reduced
McAdam, LLC275$300.5K0.01%+14+5.4%Added
Advisory Alpha, LLC274$299.6K0.01%−166−37.7%Reduced
Concentric Capital Strategies, LP274$299.6K0.03%+274New
Premier Path Wealth Partners, LLC274$299.6K0.04%+274New
Sharpepoint LLC272$297.4K0.18%+1+0.4%Added
Tuttle Tactical Management272$297.4K0.49%+272New
Koshinski Asset Management, Inc.272$297.2K0.02%+272New
Globeflex Capital L P271$296.3K0.04%00.0%Unchanged
International Assets Investment Management, LLC263$294.3K0.02%−10−3.7%Reduced
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
Gallacher Capital Management LLC265$289.7K0.11%+265New
Ofi Invest Asset Management305$289.4K0.00%+77+33.8%Added
Royal Fund Management, LLC264$288.6K0.03%+7+2.7%Added
Gladstone Institutional Advisory LLC264$288.6K0.01%00.0%Unchanged
Verition Fund Management LLC263$287.6K0.00%−5,660−95.6%Reduced
Coyle Financial Counsel LLC261$285.4K0.06%+3+1.2%Added
Drive Wealth Management, LLC260$284.8K0.06%+35+15.6%Added
Naviter Wealth, LLC259$283.7K0.04%+5+2.0%Added
Tradition Wealth Management, LLC259$283.2K0.02%+4+1.6%Added
Angeles Wealth Management, LLC258$282.6K0.02%+258New
Nilsine Partners, LLC177$281.0K0.02%+177New
Sunflower Bank, N.A.257$281.0K0.07%+29+12.7%Added
Miracle Mile Advisors, LLC255$279.1K0.00%−30−10.5%Reduced
Cary Street Partner Investment Advisory LLC255$278.5K0.07%+12+4.9%Added
Catalyst Financial Partners LLC252$275.5K0.03%+17+7.2%Added
L2 Asset Management, LLC249$272.2K0.03%+19+8.3%Added
17 Capital Partners, LLC249$272.2K0.14%+25+11.2%Added
Maridea Wealth Management LLC248$270.9K0.04%+248New
TABR Capital Management, LLC246$269.0K0.25%+246New
CWA Asset Management Group, LLC244$266.8K0.01%+21+9.4%Added
Keel Point, LLC243$265.7K0.02%−93−27.7%Reduced
Massmutual Trust Co FSB243$265.7K0.01%−21−8.0%Reduced
PDS Planning, Inc243$265.7K0.02%+6+2.5%Added
Virtue Capital Management, LLC264$264.6K0.04%−111−29.6%Reduced
Pallas Capital Advisors LLC242$264.4K0.01%−29−10.7%Reduced
Prelude Capital Management, LLC240$262.4K0.02%−82−25.5%Reduced
Dearborn Partners LLC240$262.4K0.01%−75−23.8%Reduced
Wall Street Financial Group, Inc.239$261.3K0.15%+7+3.0%Added
Corundum Group, Inc.237$259.1K0.09%−47−16.5%Reduced
Summit Creek Advisors LLC236$258.0K0.05%00.0%Unchanged
Fidelis Capital Partners, LLC236$258.0K0.02%+236New
BAM Wealth Management, LLC235$256.9K0.19%−64−21.4%Reduced
Alpha Family Trust235$256.9K0.12%00.0%Unchanged
Beese Fulmer Investment Management, Inc.234$255.8K0.02%−64−21.5%Reduced
Jacobi Capital Management LLC232$254.2K0.01%−80−25.6%Reduced
CVA Family Office, LLC232$253.7K0.03%+12+5.5%Added
New Wave Wealth Advisors LLC230$251.9K0.09%+230New
Gardner Lewis Asset Management L P229$250.4K0.05%+229New
Ascent Group, LLC228$249.3K0.01%+228New
First Bank & Trust226$247.1K0.04%−56−19.9%Reduced
Autumn Glory Partners, LLC226$247.1K0.09%+3+1.3%Added
May Hill Capital, LLC226$247.1K0.06%+5+2.3%Added
Alta Advisers Ltd225$246.0K0.09%00.0%Unchanged
Sustainable Insight Capital Management, LLC222$242.7K0.08%00.0%Unchanged
CenterBook Partners LP222$242.7K0.01%+222New
Graetz Wealth LLC218$238.4K0.21%−47−17.7%Reduced
TownSquare Capital, LLC215$235.1K0.05%+215New
Conning Inc.214$234.0K0.01%−29−11.9%Reduced
Woodward Diversified Capital, LLC159$233.5K0.11%+159New
Fisher Asset Management, LLC212$232.2K0.00%−26−10.9%Reduced
Catalyst Funds Management Pty Ltd211$230.7K0.04%+211New
Los Angeles Capital Management LLC209$228.5K0.00%−6,744−97.0%Reduced
Chesley Taft & Associates LLC209$228.5K0.01%+209New
Diversified Trust Co209$228.5K0.00%+209New
Graves-Light Private Wealth Management, Inc.205$224.5K0.02%+205New
DGS Capital Management, LLC204$223.0K0.04%+204New
LeConte Wealth Management, LLC204$223.0K0.14%+204New
GM Advisory Group, Inc.203$222.1K0.01%+203New
Advisors Capital Management, LLC203$222.1K0.00%+203New
Abel Hall, LLC202$220.9K0.05%+202New
Csenge Advisory Group201$219.5K0.01%+201New
Firsthand Capital Management, Inc.200$218.7K0.47%00.0%Unchanged
VisionPoint Advisory Group, LLC200$218.7K0.04%+200New
Childress Capital Advisors, LLC199$218.5K0.04%+199New
TruNorth Capital Management, LLC199$217.6K0.04%+199New
Principal Street Partners, LLC198$216.5K0.04%+198New
MASTERINVEST Kapitalanlage GmbH198$216.5K0.02%+198New
Wealth Alliance198$216.1K0.02%+198New
New Age Alpha Advisors, LLC197$215.4K0.01%−7−3.4%Reduced
LRI Investments, LLC197$215.4K0.02%+9+4.8%Added
LVW Advisors, LLC196$214.3K0.02%+196New
AlTi Global, Inc.195$213.6K0.00%−57−22.6%Reduced
Harrell Investment Partners, LLC194$212.1K0.05%+194New
Red Wave Investments LLC194$212.1K0.06%+194New
Wedbush Securities Inc194$212.0K0.01%+194New
Sepio Capital, LP193$211.4K0.01%+193New
ProCore Advisors, LLC193$211.2K0.32%+193New
Diversified Enterprises, LLC193$211.0K0.01%−50−20.6%Reduced
Great Valley Advisor Group, Inc.192$210.3K0.00%+192New
Ameritas Advisory Services, LLC192$210.0K0.01%−41−17.6%Reduced
BankChampaign, National Association192$209.9K0.21%+192New
Pinnacle Wealth Planning Services, Inc.191$208.8K0.02%−1−0.5%Reduced
Bayforest Capital Ltd191$208.8K0.23%+122+176.8%Added
Signal Advisors Wealth, LLC189$206.6K0.01%+189New
Pure Financial Advisors, Inc.188$205.9K0.00%+188New
Alliance Wealth Advisors, LLC187$204.5K0.04%−49−20.8%Reduced