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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, 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
Unique Wealth, LLC315$230.4K0.04%+315New
Graham Capital Management, L.P.314$229.7K0.01%−559−64.0%Reduced
Integrated Advisors Network LLC310$226.7K0.01%+310New
SageView Advisory Group, LLC303$223.8K0.01%+303New
Aptus Capital Advisors, LLC305$223.1K0.00%−52−14.6%Reduced
SLT Holdings LLC305$223.1K0.17%+305New
Hutchens & Kramer Investment Management Group, LLC298$222.6K0.10%+298New
Consolidated Portfolio Review Corp303$221.6K0.03%+303New
Personal Cfo Solutions, LLC301$220.2K0.04%+301New
FSM Wealth Advisors, LLC296$219.4K0.04%+296New
Essex Investment Management Co LLC300$219.4K0.04%00.0%Unchanged
Stephens Inc298$218.0K0.00%+298New
Fedenia Advisers LLC297$217.2K0.10%+297New
Gerber Kawasaki Wealth & Investment Management291$213.1K0.01%+291New
Keel Point, LLC290$212.1K0.01%+290New
CX Institutional290$212.0K0.01%+28+10.7%Added
Cary Street Partner Investment Advisory LLC289$211.2K0.10%−76−20.8%Reduced
Integrated Investment Consultants, LLC283$207.0K0.04%+283New
First Bank & Trust281$205.5K0.04%+281New
Eq LLC279$204.3K0.08%+279New
Stevens Capital Management LP279$204.0K0.06%−192−40.8%Reduced
Corundum Group, Inc.277$202.6K0.09%+277New
Woodward Diversified Capital, LLC277$202.6K0.10%+277New
International Assets Investment Management, LLC276$202.1K0.02%−194−41.3%Reduced
111 Capital276$201.9K0.03%+276New
GPS Wealth Strategies Group, LLC265$193.6K0.02%−44−14.2%Reduced
First Horizon Advisors, Inc.256$187.5K0.00%+38+17.4%Added
Massmutual Trust Co FSB249$182.1K0.00%−21−7.8%Reduced
Gitterman Wealth Management, LLC245$179.2K0.04%+245New
St Germain D J Co Inc230$168.2K0.01%+228+11,400.0%Added
MCF Advisors LLC227$166.4K0.01%+227New
Reyes Financial Architecture, Inc.225$164.6K0.14%+225New
Thurston, Springer, Miller, Herd & Titak, Inc.224$163.8K0.02%−205−47.8%Reduced
CVA Family Office, LLC218$159.4K0.02%+29+15.3%Added
Allworth Financial LP218$159.4K0.00%+29+15.3%Added
MAI Capital Management196$143.0K0.00%+38+24.1%Added
LRI Investments, LLC188$137.5K0.01%00.0%Unchanged
Park Place Capital Corp184$137.4K0.03%+21+12.9%Added
Truvestments Capital LLC172$125.8K0.03%−11−6.0%Reduced
TD Waterhouse Canada Inc.164$122.4K0.00%+29+21.5%Added
YANKCOM Partnership163$119.2K0.06%−2−1.2%Reduced
Leonteq Securities AG160$117.0K0.01%−440−73.3%Reduced
Brown Brothers Harriman & Co160$117.0K0.00%+133+492.6%Added
Pension & Wealth Management Advisors, Inc.158$116.1K0.04%−209−56.9%Reduced
Rothschild Investment LLC154$112.6K0.01%−19−11.0%Reduced
Capital Analysts, LLC146$107.0K0.00%+1+0.7%Added
Manchester Capital Management LLC146$106.8K0.01%−1−0.7%Reduced
Sentry Investment Management LLC137$104.0K0.06%00.0%Unchanged
MUFG Securities EMEA plc141$103.1K0.00%+141New
Kestra Investment Management, LLC177$102.7K0.00%00.0%Unchanged
Aventura Private Wealth, LLC139$101.7K0.04%00.0%Unchanged
GeoWealth Management, LLC137$100.2K0.00%−188−57.8%Reduced
Promus Capital, LLC136$99.5K0.06%00.0%Unchanged
Cromwell Holdings LLC131$96.0K0.06%+4+3.1%Added
Trust Co of Vermont130$95.1K0.00%00.0%Unchanged
Onefund, LLC124$91.0K0.07%+124New
Walleye Trading LLC109$79.7K0.00%−2,240−95.4%Reduced
Migdal Insurance & Financial Holdings Ltd.108$79.0K0.00%−236−68.6%Reduced
Geneos Wealth Management Inc.108$79.0K0.00%00.0%Unchanged
Zions Bancorporation, National Association94$68.8K0.00%+52+123.8%Added
Opal Wealth Advisors, LLC90$65.8K0.02%−3−3.2%Reduced
Towarzystwo Funduszy Inwestycyjnych Pzu SA87$63.6K0.02%00.0%Unchanged
Evelyn Partners Asset Management Ltd84$61.4K0.02%00.0%Unchanged
Private Trust Co NA83$60.7K0.01%−84−50.3%Reduced
Sterling Capital Management LLC75$54.9K0.00%−88−54.0%Reduced
Annis Gardner Whiting Capital Advisors, LLC73$53.4K0.02%+73New
Quest Partners LLC72$52.7K0.01%−59−45.0%Reduced
Trust Co of Toledo NA66$48.3K0.01%+66New
Delta Asset Management LLC65$47.5K0.00%00.0%Unchanged
AdvisorNet Financial, Inc65$47.5K0.00%+49+306.3%Added
Golden State Wealth Management, LLC64$46.8K0.01%−2−3.0%Reduced
IFP Advisors, Inc14$44.2K0.00%−17−54.8%Reduced
Federated Hermes, Inc.56$41.0K0.00%−13,937−99.6%Reduced
West Oak Capital, LLC55$40.2K0.02%00.0%Unchanged
Optiver Holding B.V.51$37.3K0.00%+51New
Fourth Dimension Wealth, LLC49$35.8K0.02%00.0%Unchanged
Strategic Investment Solutions, Inc.49$35.8K0.01%+49New
Sierra Ocean, LLC48$35.2K0.03%−3−5.9%Reduced
Itau Unibanco Holding S.A.46$33.6K0.00%−7−13.2%Reduced
Tradewinds Capital Management, LLC44$32.2K0.01%−1−2.2%Reduced
NewSquare Capital LLC44$32.2K0.00%+19+76.0%Added
GW&K Investment Management, LLC42$31.0K0.00%+9+27.3%Added
Talon Private Wealth, LLC42$30.7K0.00%+42New
WPG Advisers, LLC41$30.0K0.03%−5−10.9%Reduced
Rise Advisors, LLC40$29.5K0.01%+9+29.0%Added
Tidemark, LLC40$29.3K0.01%+31+344.4%Added
MV Capital Management, Inc.39$28.5K0.00%+2+5.4%Added
Bell Investment Advisors, Inc38$27.8K0.00%+6+18.8%Added
Clear Street Markets LLC32$23.4K0.01%+32New
Covestor Ltd30$23.0K0.01%−215−87.8%Reduced
Solstein Capital, LLC31$22.7K0.01%00.0%Unchanged
Wolff Wiese Magana LLC30$21.9K0.01%00.0%Unchanged
Essential Partners LLC29$21.2K0.01%+29New
Farmers & Merchants Investments Inc28$20.5K0.00%00.0%Unchanged
PenderFund Capital Management Ltd.28$20.5K0.00%+11+64.7%Added
Arlington Trust Co LLC27$19.7K0.00%−26−49.1%Reduced
Harbour Investments, Inc.27$19.7K0.00%+6+28.6%Added
Centricity Wealth Management, LLC26$19.0K0.02%00.0%Unchanged
South State Corp.25$18.3K0.00%−32−56.1%Reduced
Anchor Investment Management, LLC25$18.3K0.00%00.0%Unchanged