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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
J.Safra Asset Management Corp9$12.4K0.00%+9New
Gleason Group, Inc.9$12.4K0.00%+9New
South State Corp.9$12.4K0.00%00.0%Unchanged
Asset Dedication, LLC9$12.4K0.00%00.0%Unchanged
Atlantic Trust, LLC9$12.4K0.00%00.0%Unchanged
Harbor Investment Advisory, LLC10$13.8K0.00%−7−41.2%Reduced
Berkshire Capital Holdings Inc10$13.8K0.00%00.0%Unchanged
Marquette Asset Management, LLC10$13.8K0.00%00.0%Unchanged
IAG Wealth Partners, LLC10$13.8K0.00%00.0%Unchanged
Altshuler Shaham Ltd10$13.8K0.00%+7+233.3%Added
IFG Advisory, LLC10$13.8K0.00%+2+25.0%Added
Manchester Capital Management LLC11$15.2K0.00%00.0%Unchanged
Cedar Mountain Advisors, LLC11$15.2K0.00%00.0%Unchanged
Cetera Trust Company, N.A11$15.2K0.01%00.0%Unchanged
WealthCollab, LLC11$15.2K0.01%00.0%Unchanged
Highline Wealth Partners LLC11$15.2K0.00%00.0%Unchanged
Cornerstone Financial Management LLC11$15.2K0.01%+6+120.0%Added
JPL Wealth Management, LLC11$15.2K0.00%+2+22.2%Added
Delta Asset Management LLC12$16.6K0.00%−37−75.5%Reduced
United Financial Planning Group LLC12$16.6K0.01%−6−33.3%Reduced
Joseph Group Capital Management12$16.6K0.00%+3+33.3%Added
First Pacific Financial12$16.6K0.00%−5−29.4%Reduced
Bare Financial Services, Inc12$16.6K0.00%+8+200.0%Added
Institute for Wealth Management, LLC.12$16.6K0.00%+12New
Bartlett & Co. Wealth Management LLC12$16.6K0.00%+8+200.0%Added
Signature Equity Partners, LLC13$18.1K0.01%−1−7.1%Reduced
Ancora Advisors, LLC14$19.4K0.00%−20−58.8%Reduced
Cape Investment Advisory, Inc.14$19.4K0.01%+14New
Pacific Center for Financial Services14$19.4K0.00%00.0%Unchanged
ZRC Wealth Management, LLC15$20.7K0.01%+7+87.5%Added
Avion Wealth16$22.0K0.00%00.0%Unchanged
Hager Investment Management Services, LLC16$22.1K0.01%+2+14.3%Added
Armstrong Advisory Group, Inc16$22.3K0.00%+2+14.3%Added
Concord Wealth Partners16$22.5K0.00%+16New
Webster Bank, N. A.17$23.5K0.00%+5+41.7%Added
Fulcrum Asset Management LLP18$23.6K0.00%+18New
Kemnay Advisory Services Inc.18$24.9K0.00%−1−5.3%Reduced
Synergy Investment Management, LLC19$25.1K0.01%+13+216.7%Added
Bogart Wealth, LLC19$26.3K0.00%−1−5.0%Reduced
Rexford Capital Inc19$26.3K0.02%00.0%Unchanged
Morgan Dempsey Capital Management LLC19$26.3K0.01%00.0%Unchanged
Quarry LP20$27.6K0.00%+20New
Fedenia Advisers LLC20$27.6K0.01%+20New
JFS Wealth Advisors, LLC20$27.7K0.00%+1+5.3%Added
Sachetta, LLC20$27.7K0.01%+3+17.6%Added
Smithfield Trust Co20$28.0K0.00%00.0%Unchanged
Private Wealth Management Group, LLC21$29.0K0.01%00.0%Unchanged
UMA Financial Services, Inc.21$29.0K0.00%+3+16.7%Added
Financial Management Professionals, Inc.22$30.5K0.00%+2+10.0%Added
Westfuller Advisors, LLC22$30.7K0.01%+1+4.8%Added
True Wealth Design, LLC23$31.8K0.01%−3−11.5%Reduced
Financial Perspectives, Inc24$33.8K0.01%00.0%Unchanged
Tidemark, LLC25$34.6K0.01%00.0%Unchanged
Transamerica Financial Advisors, Inc.25$34.9K0.00%−1−3.8%Reduced
Ulland Investment Advisors, LLC25$35.0K0.03%00.0%Unchanged
Sfam, LLC26$35.9K0.03%00.0%Unchanged
Index Technologies Group LLC26$35.9K0.03%+26New
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
Stephenson National Bank & Trust28$38.7K0.01%+28New
Farmers & Merchants Investments Inc29$40.1K0.00%00.0%Unchanged
Elequin Capital LP29$40.1K0.00%+22+314.3%Added
SHP Wealth Management30$41.1K0.00%+9+42.9%Added
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
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
Tradewinds Capital Management, LLC34$47.0K0.01%00.0%Unchanged
SJS Investment Consulting Inc.34$47.0K0.01%+3+9.7%Added
Salomon & Ludwin, LLC36$47.9K0.00%00.0%Unchanged
Thurston, Springer, Miller, Herd & Titak, Inc.38$52.5K0.02%00.0%Unchanged
Crewe Advisors LLC38$52.6K0.00%+28+280.0%Added
Generali Asset Management SPA SGR39$53.9K0.00%−653−94.4%Reduced
NBH Bank39$53.9K0.02%+39New
Cornerstone Planning Group LLC40$56.1K0.01%−6−13.0%Reduced
Essential Partners LLC43$59.4K0.03%00.0%Unchanged
Silver Grove Financial Group, Inc.43$59.5K0.03%+43New
Meeder Asset Management Inc45$62.2K0.00%−41−47.7%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
GW&K Investment Management, LLC46$64.0K0.00%−4−8.0%Reduced
Principia Wealth Advisory, LLC47$65.0K0.03%−48−50.5%Reduced
Solstein Capital, LLC49$67.7K0.02%00.0%Unchanged
Fourth Dimension Wealth, LLC49$67.7K0.02%00.0%Unchanged
WPG Advisers, LLC50$69.1K0.04%00.0%Unchanged
AdvisorNet Financial, Inc56$77.4K0.00%−4−6.7%Reduced
Private Trust Co NA57$78.8K0.01%−10−14.9%Reduced
Rakuten Securities, Inc.59$81.6K0.02%+33+126.9%Added
Geneos Wealth Management Inc.63$87.1K0.00%00.0%Unchanged
Pension & Wealth Management Advisors, Inc.63$88.4K0.02%−9−12.5%Reduced
Golden State Wealth Management, LLC64$88.5K0.01%00.0%Unchanged
Covestor Ltd64$89.0K0.05%−68−51.5%Reduced
Anchor Investment Management, LLC65$89.9K0.01%+40+160.0%Added
First Command Advisory Services, Inc.67$92.7K0.00%+44+191.3%Added
Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.68$94.0K0.29%−227−76.9%Reduced
Aquatic Capital Management LLC70$96.8K0.00%+70New