Skip to main content
Livermore
Livermore
ZHEN

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
E Fund Management (Hong Kong) Co., Ltd.187$204.5K0.09%+49+35.5%Added
Roman Butler Fullerton & Co155$203.3K0.06%+155New
Moss Adams Wealth Advisors LLC185$202.7K0.01%+185New
Revolve Wealth Partners, LLC185$202.3K0.03%+185New
Fundamentun, LLC184$202.2K0.01%+184New
BlackDiamond Wealth Management Inc.184$201.2K0.10%+184New
CFS Investment Advisory Services, LLC137$201.2K0.01%+137New
Quotient Wealth Partners, LLC184$200.9K0.01%+184New
Quadrant Private Wealth Management, LLC183$200.5K0.03%+183New
Gilliland Jeter Wealth Management LLC183$200.1K0.06%+183New
Ferguson Wellman Capital Management, Inc183$200.1K0.00%+183New
Invera Wealth Advisors, LLC183$200.1K0.13%+183New
SBI Okasan Asset Management Co.Ltd.193$193.5K0.01%+113+141.3%Added
Virtus ETF Advisers LLC175$191.3K0.09%−42−19.4%Reduced
YANKCOM Partnership173$189.2K0.08%−3−1.7%Reduced
Rothschild Investment LLC164$179.4K0.01%+7+4.5%Added
Leonteq Securities AG163$178.2K0.01%−69−29.7%Reduced
Wilkerson Advisory Group LLC147$160.7K0.06%−123−45.6%Reduced
Capital Analysts, LLC146$160.0K0.00%00.0%Unchanged
Cromwell Holdings LLC143$156.6K0.09%00.0%Unchanged
Aventura Private Wealth, LLC142$155.3K0.06%00.0%Unchanged
Park Place Capital Corp138$150.9K0.03%−2−1.4%Reduced
Basecamp Wealth Advisors LLC134$146.6K0.03%00.0%Unchanged
Onefund, LLC130$145.4K0.09%−7−5.1%Reduced
Zions Bancorporation, National Association133$145.4K0.01%−48−26.5%Reduced
Covestor Ltd132$145.0K0.10%+92+230.0%Added
Quent Capital, LLC132$144.6K0.01%+25+23.4%Added
Montag A & Associates Inc130$142.4K0.01%00.0%Unchanged
Reyes Financial Architecture, Inc.129$141.0K0.12%+26+25.2%Added
Avalon Trust Co125$136.7K0.01%00.0%Unchanged
Essex Investment Management Co LLC120$131.2K0.02%00.0%Unchanged
IFP Advisors, Inc104$113.7K0.00%+5+5.1%Added
Principia Wealth Advisory, LLC95$103.9K0.06%−7−6.9%Reduced
Harbour Investments, Inc.93$102.5K0.00%+16+20.8%Added
Optiver Holding B.V.89$97.3K0.00%+89New
Meeder Asset Management Inc86$94.0K0.01%−14,595−99.4%Reduced
Bradley & Co. Private Wealth Management, LLC85$93.1K0.05%+85New
Contravisory Investment Management, Inc.85$92.9K0.02%+85New
Evelyn Partners Asset Management Ltd84$91.8K0.02%00.0%Unchanged
Towarzystwo Funduszy Inwestycyjnych Pzu SA82$89.7K0.03%00.0%Unchanged
First Horizon Corp75$82.0K0.00%−2−2.6%Reduced
Pension & Wealth Management Advisors, Inc.72$80.3K0.02%−9−11.1%Reduced
Migdal Insurance & Financial Holdings Ltd.72$78.7K0.00%00.0%Unchanged
Timothy G. Youngquist 2020 Irrevocable Trust71$77.6K0.04%+71New
Owl Creek Wealth Partners LLC71$77.6K0.03%+71New
Private Trust Co NA67$73.3K0.01%−6−8.2%Reduced
Rossby Financial, LCC64$71.6K0.01%+59+1,180.0%Added
Cornerstone Planning Group LLC46$71.6K0.01%+2+4.5%Added
Golden State Wealth Management, LLC64$70.0K0.01%00.0%Unchanged
Geneos Wealth Management Inc.63$68.9K0.00%+6+10.5%Added
AdvisorNet Financial, Inc60$65.6K0.00%00.0%Unchanged
Root Financial Partners, LLC60$65.6K0.00%+2+3.4%Added
Trust Co of Toledo NA56$61.2K0.01%−10−15.2%Reduced
Opal Wealth Advisors, LLC55$60.1K0.01%+55New
GW&K Investment Management, LLC50$55.0K0.00%−1−2.0%Reduced
WPG Advisers, LLC50$54.7K0.04%−9−15.3%Reduced
Solstein Capital, LLC49$53.6K0.02%−5−9.3%Reduced
Delta Asset Management LLC49$53.6K0.00%00.0%Unchanged
Fourth Dimension Wealth, LLC49$53.6K0.02%00.0%Unchanged
Bell Investment Advisors, Inc47$51.4K0.01%+9+23.7%Added
Legacy Wealth Managment, LLC46$50.3K0.03%+3+7.0%Added
Essential Partners LLC43$47.0K0.02%+10+30.3%Added
Sunbelt Securities, Inc.40$43.7K0.00%+28+233.3%Added
Capital & Planning, LLC40$43.7K0.03%+40New
Thurston, Springer, Miller, Herd & Titak, Inc.38$41.5K0.02%00.0%Unchanged
Strategic Advocates LLC37$40.5K0.18%+37New
Salomon & Ludwin, LLC36$40.3K0.00%00.0%Unchanged
Tradewinds Capital Management, LLC34$37.2K0.01%00.0%Unchanged
Ancora Advisors, LLC34$37.2K0.00%+4+13.3%Added
SJS Investment Consulting Inc.31$33.9K0.00%+2+6.9%Added
Wolff Wiese Magana LLC30$32.8K0.02%00.0%Unchanged
Twin Peaks Wealth Advisors, LLC30$32.8K0.01%+30New
Provenance Wealth Advisors, LLC30$32.8K0.00%00.0%Unchanged
Farmers & Merchants Investments Inc29$31.7K0.00%00.0%Unchanged
Ares Financial Consulting, LLC27$30.2K0.02%00.0%Unchanged
Transamerica Financial Advisors, Inc.26$28.7K0.00%+11+73.3%Added
True Wealth Design, LLC26$28.4K0.01%−3−10.3%Reduced
Rakuten Securities, Inc.26$28.4K0.01%−32−55.2%Reduced
Sfam, LLC26$28.4K0.03%00.0%Unchanged
Tidemark, LLC25$27.4K0.01%+1+4.2%Added
Anchor Investment Management, LLC25$27.3K0.00%00.0%Unchanged
Ulland Investment Advisors, LLC25$27.0K0.02%00.0%Unchanged
Financial Perspectives, Inc24$26.7K0.01%00.0%Unchanged
Clark Wealth Partners24$26.3K0.02%+2+9.1%Added
First Command Advisory Services, Inc.23$25.2K0.00%+4+21.1%Added
Westfuller Advisors, LLC21$23.3K0.01%00.0%Unchanged
Innovative Asset Advisors Group, LLC21$23.0K0.01%+21New
Private Wealth Management Group, LLC21$23.0K0.01%00.0%Unchanged
SHP Wealth Management21$22.9K0.00%+6+40.0%Added
Financial Management Professionals, Inc.20$21.9K0.00%+20New
Bogart Wealth, LLC20$21.9K0.00%00.0%Unchanged
Fortitude Family Office, LLC20$21.9K0.00%+6+42.9%Added
Smithfield Trust Co20$21.0K0.00%+4+25.0%Added
Morgan Dempsey Capital Management LLC19$20.8K0.01%00.0%Unchanged
JFS Wealth Advisors, LLC19$20.8K0.00%−1−5.0%Reduced
Center for Financial Planning, Inc.19$20.8K0.00%00.0%Unchanged
Rexford Capital Inc19$20.8K0.01%00.0%Unchanged
Kemnay Advisory Services Inc.19$20.8K0.00%+1+5.6%Added
UMA Financial Services, Inc.18$19.7K0.00%00.0%Unchanged
United Financial Planning Group LLC18$19.7K0.01%+11+157.1%Added