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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
FSM Wealth Advisors, LLC154$213.1K0.02%+154New
Fiduciary Family Office, LLC154$212.9K0.05%+154New
ProVise Management Group, LLC153$211.5K0.01%+153New
Sustainable Insight Capital Management, LLC152$210.1K0.09%−70−31.5%Reduced
Peak Financial Advisors LLC152$210.1K0.09%+152New
Purkiss Capital Advisors LLC152$210.1K0.08%+152New
University of Texas/Texas Am Investment Managment Co152$210.1K0.02%+152New
Optivise Advisory Services LLC151$208.5K0.11%+151New
Consilio Wealth Advisors, LLC150$207.4K0.05%+150New
Wall Street Access Asset Management, LLC150$207.4K0.03%+150New
Johnson Financial Group, LLC150$207.4K0.01%+150New
NLB Skladi, upravljanje premozenja, d.o.o.150$207.4K0.01%+150New
Alliance Wealth Advisors, LLC149$206.0K0.04%−38−20.3%Reduced
Boston Private Wealth LLC149$205.3K0.01%+149New
Capital Analysts, LLC147$203.0K0.00%+1+0.7%Added
Chicago Capital, LLC146$201.8K0.00%+146New
Roman Butler Fullerton & Co156$201.5K0.05%+1+0.6%Added
Werba Rubin Papier Wealth Management145$200.4K0.02%+145New
Park Place Capital Corp144$199.1K0.03%+6+4.3%Added
Cromwell Holdings LLC143$198.0K0.09%00.0%Unchanged
Virtus ETF Advisers LLC143$197.7K0.08%−32−18.3%Reduced
Trust Co of Vermont140$193.5K0.01%+140New
Aventura Private Wealth, LLC140$193.0K0.06%−2−1.4%Reduced
Basecamp Wealth Advisors LLC134$185.3K0.03%00.0%Unchanged
Onefund, LLC132$182.5K0.10%+2+1.5%Added
Avalon Trust Co125$172.8K0.01%00.0%Unchanged
Essex Investment Management Co LLC120$165.9K0.02%00.0%Unchanged
Montag A & Associates Inc119$164.7K0.01%−11−8.5%Reduced
Wilkerson Advisory Group LLC117$161.7K0.05%−30−20.4%Reduced
Union Bancaire Privee, UBP SA122$160.2K0.00%+122New
Harbour Investments, Inc.115$158.4K0.00%+22+23.7%Added
YANKCOM Partnership114$157.6K0.06%−59−34.1%Reduced
Reyes Financial Architecture, Inc.104$143.8K0.08%−25−19.4%Reduced
First Horizon Corp103$142.4K0.01%+28+37.3%Added
Rossby Financial, LCC101$139.6K0.03%+37+57.8%Added
Pier 88 Investment Partners LLC100$138.2K0.03%−1,100−91.7%Reduced
Eastern Bank100$138.2K0.00%+100New
IFP Advisors, Inc98$135.5K0.00%−6−5.8%Reduced
Zions Bancorporation, National Association94$129.9K0.01%−39−29.3%Reduced
Towarzystwo Funduszy Inwestycyjnych Pzu SA92$127.2K0.04%+10+12.2%Added
Hollencrest Capital Management88$121.6K0.01%+88New
Bradley & Co. Private Wealth Management, LLC85$117.7K0.06%00.0%Unchanged
Trust Co of Toledo NA84$116.1K0.01%+28+50.0%Added
Evelyn Partners Group Ltd84$116.1K0.00%+84New
Strategic Investment Advisors80$110.5K0.01%+80New
Contravisory Investment Management, Inc.79$109.2K0.02%−6−7.1%Reduced
Action Point Financial Planning, LLC81$108.0K0.01%+81New
EFG International AG75$103.7K0.00%+75New
Owl Creek Wealth Partners LLC71$98.1K0.03%00.0%Unchanged
Aquatic Capital Management LLC70$96.8K0.00%+70New
Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.68$94.0K0.29%−227−76.9%Reduced
First Command Advisory Services, Inc.67$92.7K0.00%+44+191.3%Added
Anchor Investment Management, LLC65$89.9K0.01%+40+160.0%Added
Covestor Ltd64$89.0K0.05%−68−51.5%Reduced
Golden State Wealth Management, LLC64$88.5K0.01%00.0%Unchanged
Pension & Wealth Management Advisors, Inc.63$88.4K0.02%−9−12.5%Reduced
Geneos Wealth Management Inc.63$87.1K0.00%00.0%Unchanged
Rakuten Securities, Inc.59$81.6K0.02%+33+126.9%Added
Private Trust Co NA57$78.8K0.01%−10−14.9%Reduced
AdvisorNet Financial, Inc56$77.4K0.00%−4−6.7%Reduced
WPG Advisers, LLC50$69.1K0.04%00.0%Unchanged
Solstein Capital, LLC49$67.7K0.02%00.0%Unchanged
Fourth Dimension Wealth, LLC49$67.7K0.02%00.0%Unchanged
Principia Wealth Advisory, LLC47$65.0K0.03%−48−50.5%Reduced
GW&K Investment Management, LLC46$64.0K0.00%−4−8.0%Reduced
Bell Investment Advisors, Inc46$63.6K0.01%−1−2.1%Reduced
Strategic Advocates LLC46$63.6K0.25%+9+24.3%Added
USA Financial Formulas46$63.6K0.01%+46New
Meeder Asset Management Inc45$62.2K0.00%−41−47.7%Reduced
Silver Grove Financial Group, Inc.43$59.5K0.03%+43New
Essential Partners LLC43$59.4K0.03%00.0%Unchanged
Cornerstone Planning Group LLC40$56.1K0.01%−6−13.0%Reduced
Generali Asset Management SPA SGR39$53.9K0.00%−653−94.4%Reduced
NBH Bank39$53.9K0.02%+39New
Crewe Advisors LLC38$52.6K0.00%+28+280.0%Added
Thurston, Springer, Miller, Herd & Titak, Inc.38$52.5K0.02%00.0%Unchanged
Salomon & Ludwin, LLC36$47.9K0.00%00.0%Unchanged
SJS Investment Consulting Inc.34$47.0K0.01%+3+9.7%Added
Tradewinds Capital Management, LLC34$47.0K0.01%00.0%Unchanged
Pinpoint Asset Management (Singapore) Pte. Ltd.31$42.9K0.01%−262−89.4%Reduced
Oslo Pensjonsforsikring AS31$42.9K0.00%+31New
Continuum Advisory, LLC31$42.9K0.00%+31New
Wolff Wiese Magana LLC30$41.5K0.02%00.0%Unchanged
Provenance Wealth Advisors, LLC30$41.5K0.00%00.0%Unchanged
Custom Index Systems, LLC30$41.5K0.01%+30New
SHP Wealth Management30$41.1K0.00%+9+42.9%Added
Farmers & Merchants Investments Inc29$40.1K0.00%00.0%Unchanged
Elequin Capital LP29$40.1K0.00%+22+314.3%Added
Stephenson National Bank & Trust28$38.7K0.01%+28New
Ares Financial Consulting, LLC27$37.3K0.03%00.0%Unchanged
Fortitude Family Office, LLC27$37.3K0.01%+7+35.0%Added
Evermay Wealth Management LLC27$37.3K0.00%+27New
Sfam, LLC26$35.9K0.03%00.0%Unchanged
Index Technologies Group LLC26$35.9K0.03%+26New
Ulland Investment Advisors, LLC25$35.0K0.03%00.0%Unchanged
Transamerica Financial Advisors, Inc.25$34.9K0.00%−1−3.8%Reduced
Tidemark, LLC25$34.6K0.01%00.0%Unchanged
Financial Perspectives, Inc24$33.8K0.01%00.0%Unchanged
True Wealth Design, LLC23$31.8K0.01%−3−11.5%Reduced
Westfuller Advisors, LLC22$30.7K0.01%+1+4.8%Added