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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
Uhlmann Price Securities, LLC413$451.6K0.03%−16−3.7%Reduced
Sigma Planning Corp414$452.9K0.01%+414New
MAI Capital Management422$461.4K0.00%+51+13.7%Added
Kera Capital Partners, Inc.431$471.2K0.06%−17−3.8%Reduced
Cigna Investments Inc437$478.0K0.07%−18−4.0%Reduced
Excelsior Advisor Network LLC440$481.1K0.18%+76+20.9%Added
TFB Advisors LLC442$483.3K0.25%−50−10.2%Reduced
Mainstay Capital Management LLC443$484.4K0.04%−7−1.6%Reduced
Ci Investments Inc.443$484.4K0.00%+2+0.5%Added
Kestra Private Wealth Services, LLC445$486.6K0.01%−129−22.5%Reduced
Covenant Asset Management, LLC447$488.7K0.10%00.0%Unchanged
71 West Capital Partners448$489.8K0.02%+105+30.6%Added
Bridges Investment Management Inc449$490.9K0.01%00.0%Unchanged
Pier Capital, LLC450$492.0K0.08%−16−3.4%Reduced
BXM Wealth LLC450$492.0K0.38%00.0%Unchanged
Silverleafe Capital Partners, LLC451$493.1K0.15%+451New
Buffalo Business & Estate Services Ltd455$497.1K0.07%−84−15.6%Reduced
Meiji Yasuda Asset Management Co Ltd.457$499.7K0.02%−131−22.3%Reduced
Truvestments Capital LLC457$500.2K0.09%+58+14.5%Added
Verdence Capital Advisors LLC459$502.3K0.03%−227−33.1%Reduced
Outlook Wealth Advisors, LLC461$503.6K0.12%+22+5.0%Added
KCM Investment Advisors LLC467$510.6K0.02%+10+2.2%Added
Phoenix Holdings Ltd.469$513.0K0.00%+120+34.4%Added
Total Clarity Wealth Management, Inc.471$515.0K0.12%+49+11.6%Added
Legacy Wealth Asset Management, LLC477$521.5K0.13%−3−0.6%Reduced
Kickstand Ventures, LLC.480$525.0K0.11%00.0%Unchanged
Fifth Third Wealth Advisors LLC481$525.9K0.02%+91+23.3%Added
Wellington Grp LLC481$525.9K0.16%+481New
Coastal Bridge Advisors, LLC488$533.3K0.04%+2+0.4%Added
Marshall Financial Group LLC489$534.7K0.09%−5−1.0%Reduced
Hills Bank & Trust Co494$540.1K0.03%−70−12.4%Reduced
Vancity Investment Management Ltd501$548.0K0.09%+47+10.4%Added
Capula Management Ltd502$548.9K0.00%+502New
GeoWealth Management, LLC503$550.0K0.02%+281+126.6%Added
Smartleaf Asset Management LLC553$554.3K0.02%+36+7.0%Added
Blue Bell Private Wealth Management, LLC523$571.8K0.08%+523New
Valeo Financial Advisors, LLC528$577.7K0.01%−163−23.6%Reduced
Umb Bank N A530$579.5K0.01%+18+3.5%Added
Drake & Associates, LLC531$580.6K0.11%−262−33.0%Reduced
AE Wealth Management LLC532$581.5K0.00%−1,035−66.0%Reduced
Fielder Capital Group LLC532$581.7K0.13%+14+2.7%Added
Avestar Capital, LLC536$586.4K0.04%+18+3.5%Added
Advisor OS, LLC537$586.9K0.04%−382−41.6%Reduced
Trust Asset Management LLC537$587.1K0.04%00.0%Unchanged
Vision Retirement, LLC540$589.9K0.17%−5−0.9%Reduced
Brandywine Managers, LLC542$592.6K0.35%+542New
D.A. Davidson & Co.545$595.9K0.00%−9−1.6%Reduced
MOKAN Wealth Management Inc.542$599.7K0.27%+248+84.4%Added
1248 Management, LLC548$600.3K0.28%+548New
Knuff & Co LLC550$601.3K0.18%00.0%Unchanged
Cambria Investment Management, L.P.552$603.5K0.03%+552New
Sagespring Wealth Partners, LLC566$619.0K0.01%+59+11.6%Added
Kingswood Wealth Advisors, LLC569$622.1K0.03%−11−1.9%Reduced
Generali Investments, Management Co LLC571$624.3K0.15%+315+123.0%Added
Clear Creek Financial Management, LLC575$628.5K0.05%+133+30.1%Added
Lifeworks Advisors, LLC576$629.3K0.08%00.0%Unchanged
La Banque Postale Asset Management SA576$629.8K0.01%−1,847−76.2%Reduced
Parallel Advisors, LLC577$631.3K0.01%+66+12.9%Added
Heartland Bank & Trust Co578$632.0K0.14%+18+3.2%Added
EP Wealth Advisors, LLC580$634.3K0.00%+188+48.0%Added
Talon Private Wealth, LLC585$639.6K0.08%+585New
Ballentine Partners, LLC588$642.9K0.01%+21+3.7%Added
V-Square Quantitative Management LLC597$652.7K0.07%+25+4.4%Added
Independent Advisor Alliance607$663.7K0.01%+31+5.4%Added
TrueMark Investments, LLC611$668.0K0.13%+611New
Mach-1 Financial Group, Inc.612$669.1K0.24%−326−34.8%Reduced
Brighton Jones LLC623$681.2K0.02%+623New
Wiregrass Investment Management LLC624$682.7K0.57%+18+3.0%Added
Sovran Advisors, LLC423$683.0K0.05%−8−1.9%Reduced
B&L Asset Management LLC626$684.4K0.30%−54−7.9%Reduced
Oak Ridge Investments LLC631$689.9K0.05%+5+0.8%Added
Mount Yale Investment Advisors, LLC642$703.0K0.02%+390+154.8%Added
Savant Capital, LLC644$704.4K0.00%+132+25.8%Added
Prescott Group Capital Management, L.L.C.647$707.4K0.07%00.0%Unchanged
George Kaiser Family Foundation647$707.4K0.08%00.0%Unchanged
AIA Group Ltd650$710.7K0.01%−309−32.2%Reduced
Yorktown Management & Research Co Inc650$710.7K0.59%00.0%Unchanged
Annis Gardner Whiting Capital Advisors, LLC650$710.7K0.11%+1+0.2%Added
111 Capital664$726.0K0.18%+158+31.2%Added
Mutual Advisors, LLC665$727.1K0.02%+145+27.9%Added
Crestwood Advisors Group LLC665$727.2K0.01%+156+30.6%Added
Whalen Wealth Management Inc.671$733.4K0.39%−1,060−61.2%Reduced
Stephens Inc676$739.1K0.01%+34+5.3%Added
Versant Capital Management, Inc676$739.1K0.07%+120+21.6%Added
J2 Capital Management Inc681$744.6K0.51%−47−6.5%Reduced
Integrated Advisors Network LLC682$745.7K0.04%−152−18.2%Reduced
Bryn Mawr Trust Co686$750.0K0.02%−10−1.4%Reduced
Marex Group plc692$756.6K0.01%+260+60.2%Added
Generali Asset Management SPA SGR692$756.6K0.02%+692New
JT Stratford LLC693$757.7K0.10%−30−4.1%Reduced
Twin Capital Management Inc695$759.9K0.10%+292+72.5%Added
Brown Brothers Harriman & Co699$764.3K0.00%+338+93.6%Added
Central Trust Co701$766.4K0.02%+10+1.4%Added
Fortress Financial Solutions, LLC709$774.8K0.81%−6−0.8%Reduced
Fiduciary Trust Co716$782.6K0.01%+2+0.3%Added
Moneta Group Investment Advisors LLC719$786.7K0.01%−48−6.3%Reduced
Portside Wealth Group, LLC721$788.3K0.11%−120−14.3%Reduced
Arkadios Wealth Advisors728$796.5K0.01%−39−5.1%Reduced
Ronald Blue Trust, Inc.730$797.6K0.01%+15+2.1%Added
Cannon Advisors, Inc.732$800.3K0.59%+15+2.1%Added