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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, Q4 2025

Institutional positions in Monolithic Power Systems, Inc. as of Dec 31, 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
1,061
+98 vs. Q3 2025
Shares held
48.8M
+2.18M (+4.7%) vs. Q3 2025
Total value
$44.2B
+$1.40B (+3.3%) vs. Q3 2025
New holders
190
383 more added
Sold out
92
353 more reduced

18 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 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 holdersQ4 2025: 1,061 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 heldQ4 2025: $44.2B
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, Q4 2025

Shares, value and share of portfolio for each institution holding Monolithic Power Systems, Inc.; share changes are against Q3 2025.

Institutions holding MPWR in Q4 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Evergreen Capital Management LLC1,307$1.19M0.03%+103+8.6%Added
Summit Place Financial Advisors, LLC1,294$1.17M0.57%−112−8.0%Reduced
MUFG Securities Americas Inc.1,291$1.17M0.07%−1−0.1%Reduced
Tema ETFs LLC1,285$1.16M0.09%00.0%Unchanged
Meeder Advisory Services, Inc.1,282$1.16M0.05%+114+9.8%Added
Emerald Advisers, LLC1,274$1.15M0.04%−57−4.3%Reduced
NVWM, LLC1,267$1.15M0.25%−20−1.6%Reduced
Caitlin John, LLC1,264$1.15M0.75%+793+168.4%Added
Virginia Retirement Systems Et Al1,260$1.14M0.01%−3,440−73.2%Reduced
BankPlus Trust Department1,260$1.14M0.30%+8+0.6%Added
Empirical Finance, LLC1,255$1.14M0.05%−152−10.8%Reduced
Captrust Financial Advisors1,252$1.13M0.00%+103+9.0%Added
Great Lakes Advisors, LLC1,240$1.12M0.01%−18−1.4%Reduced
Boomfish Wealth Group, LLC1,228$1.11M0.59%−100−7.5%Reduced
Peterson Wealth Services1,223$1.11M0.28%−6,852−84.9%Reduced
RSM US Wealth Management LLC1,196$1.11M0.01%−34−2.8%Reduced
Kentucky Retirement Systems Insurance Trust Fund1,218$1.10M0.07%00.0%Unchanged
Wahed Invest LLC1,216$1.10M0.15%−48−3.8%Reduced
David Loasby1,137$1.10M0.07%−159−12.3%Reduced
XML Financial, LLC1,211$1.10M0.09%00.0%Unchanged
Scientech Research LLC1,208$1.09M0.69%+1,208New
Bridgefront Capital, LLC1,205$1.09M0.27%+204+20.4%Added
Ellevest, Inc.1,203$1.09M0.15%−77−6.0%Reduced
Point Nemo Capital, LLC1,198$1.09M1.08%+1,198New
Meiji Yasuda Life Insurance Co1,195$1.08M0.03%−466−28.1%Reduced
Westpac Banking Corp1,189$1.08M0.07%+740+164.8%Added
Pitcairn Wealth Advisors LLC1,189$1.08M0.10%+1,189New
Snowden Capital Advisors LLC1,186$1.08M0.03%−372−23.9%Reduced
Canada Post Corp Registered Pension Plan1,170$1.06M0.04%+250+27.2%Added
Wedmont Private Capital1,104$1.06M0.04%+2+0.2%Added
Net Worth Advisory Group1,156$1.05M0.21%+80+7.4%Added
Qtron Investments LLC1,150$1.04M0.14%−193−14.4%Reduced
HighPoint Advisor Group LLC1,145$1.04M0.02%−204−15.1%Reduced
Central Pacific Bank - Trust Division1,133$1.03M0.13%−86−7.1%Reduced
KPP Advisory Services LLC1,131$1.03M0.15%+118+11.6%Added
Greenleaf Trust1,089$987.0K0.01%+4+0.4%Added
Jefferies Financial Group Inc.1,081$979.8K0.01%−1,165−51.9%Reduced
ING Groep NV1,077$976.1K0.01%+1,077New
Suncoast Equity Management1,075$974.4K0.10%−48−4.3%Reduced
Steel Peak Wealth Management LLC1,067$968.8K0.03%+190+21.7%Added
Prime Capital Investment Advisors, LLC1,062$962.7K0.01%+218+25.8%Added
TD Private Client Wealth LLC1,059$959.8K0.02%−464−30.5%Reduced
Prospera Financial Services Inc1,048$950.3K0.02%+1,048New
Kingsview Wealth Management, LLC1,046$948.1K0.01%+2+0.2%Added
Plato Investment Management Ltd1,037$944.5K0.06%−368−26.2%Reduced
Penserra Capital Management LLC1,043$943.0K0.01%−1,148−52.4%Reduced
Aaron Wealth Advisors1,039$941.7K0.05%+66+6.8%Added
Prosperity Financial Group, Inc.1,039$941.7K0.34%+93+9.8%Added
Concurrent Investment Advisors, LLC1,033$936.2K0.01%+442+74.8%Added
Citizens Financial Group Inc1,024$928.0K0.01%+30+3.0%Added
Winnow Wealth LLC1,018$923.3K0.68%−98−8.8%Reduced
Vise Technologies, Inc.1,008$914.0K0.02%+73+7.8%Added
CFC Planning Co LLC1,006$911.8K0.70%+1,006New
CoreCap Advisors, LLC992$898.9K0.03%+486+96.0%Added
Inscription Capital, LLC989$896.4K0.09%−27−2.7%Reduced
Clearstead Advisors, LLC988$895.5K0.01%+88+9.8%Added
Picton Mahoney Asset Management981$889.1K0.01%+981New
Dynamic Technology Lab Private Ltd980$888.0K0.20%+980New
Triad Wealth Partners, LLC974$882.8K0.08%+974New
Gibbs Wealth Management910$872.7K0.21%−194−17.6%Reduced
AIA Group Ltd959$869.2K0.01%−626−39.5%Reduced
RMR Wealth Builders958$868.3K0.07%−46−4.6%Reduced
Frec Markets, Inc.955$866.1K0.25%+955New
First National Bank of Hutchinson948$859.2K0.50%+11+1.2%Added
Mather Group, LLC.946$857.7K0.01%+42+4.6%Added
Huntington National Bank943$854.7K0.01%+68+7.8%Added
American Trust942$853.8K0.07%−25−2.6%Reduced
Mach-1 Financial Group, Inc.938$850.2K0.17%+938New
Advisory Services Network, LLC933$845.6K0.01%−34−3.5%Reduced
Bessemer Group Inc932$845.0K0.00%+109+13.2%Added
Group One Trading, L.P.929$842.0K0.02%−2,077−69.1%Reduced
Stevens Capital Management LP928$841.0K0.30%+260+38.9%Added
Signaturefd, LLC922$836.0K0.01%+86+10.3%Added
Advisor OS, LLC919$832.5K0.07%−194−17.4%Reduced
Brookstone Capital Management899$814.7K0.01%−33−3.5%Reduced
Siemens Fonds Invest GmbH875$808.4K0.04%+90+11.5%Added
VestGen Advisors, LLC883$800.4K0.03%−906−50.6%Reduced
WBI Investments878$795.4K0.21%−689−44.0%Reduced
Parkside Financial Bank & Trust861$780.4K0.06%−209−19.5%Reduced
CIBC World Markets Inc.860$779.5K0.00%+860New
Equitable Holdings, Inc.854$774.0K0.01%−47−5.2%Reduced
Vestmark Advisory Solutions, Inc.848$769.0K0.01%+34+4.2%Added
Portside Wealth Group, LLC841$762.3K0.10%−181−17.7%Reduced
Shaker Investments LLC837$758.6K0.32%−20−2.3%Reduced
Integrated Advisors Network LLC834$755.9K0.03%−35−4.0%Reduced
Left Brain Wealth Management, LLC832$754.1K0.26%+62+8.1%Added
Morey & Quinn Wealth Partners, LLC831$753.2K0.54%+1+0.1%Added
Green Alpha Advisors, LLC825$747.9K0.69%+53+6.9%Added
Global Retirement Partners, LLC822$745.3K0.01%+86+11.7%Added
Farther Finance Advisors, LLC821$743.7K0.01%+166+25.3%Added
Balyasny Asset Management LLC817$740.5K0.00%−8,342−91.1%Reduced
Principal Securities, Inc.805$730.0K0.01%+22+2.8%Added
Drake & Associates, LLC793$718.8K0.14%+12+1.5%Added
Peak Financial Advisors LLC789$715.1K0.32%+789New
Odyssean, LLC783$709.7K0.51%+783New
Cannon Advisors, Inc.717$705.2K0.50%00.0%Unchanged
CNB Bank775$702.4K0.29%−18−2.3%Reduced
Syon Capital LLC772$699.8K0.03%+59+8.3%Added
ICICI Prudential Asset Management Co Ltd768$696.1K0.08%+768New
Baader Bank INC772$695.5K0.06%−511−39.8%Reduced