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.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 1,250 | $65.6B |
| Q1 2026 | 1,124 | $51.6B |
| Q4 2025 | 1,061 | $44.2B |
| Q3 2025 | 981 | $43.0B |
| Q2 2025 | 907 | $34.6B |
| Q1 2025 | 862 | $27.0B |
| Q4 2024 | 864 | $27.6B |
| Q3 2024 | 885 | $42.8B |
| Q2 2024 | 838 | $38.6B |
| Q1 2024 | 807 | $31.2B |
| Q4 2023 | 737 | $28.6B |
| Q3 2023 | 655 | $21.2B |
| Q2 2023 | 652 | $25.2B |
| Q1 2023 | 669 | $23.3B |
| Q4 2022 | 611 | $16.5B |
| Q3 2022 | 630 | $16.6B |
| Q2 2022 | 625 | $16.8B |
| Q1 2022 | 611 | $21.3B |
| Q4 2021 | 627 | $21.5B |
| Q3 2021 | 579 | $21.1B |
| Q2 2021 | 533 | $16.1B |
| Q1 2021 | 530 | $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.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Brown Advisory Inc | 379,897 | $415.4M | 0.68% | −120,858−24.1% | Reduced |
| Legal & General Group Plc | 380,089 | $415.6M | 0.10% | +23,450+6.6% | Added |
| Bank of America Corp | 382,162 | $417.8M | 0.03% | −167,413−30.5% | Reduced |
| Voya Investment Management LLC | 393,559 | $429.9M | 0.45% | +53,827+15.8% | Added |
| Royal Bank of Canada | 473,368 | $517.6M | 0.10% | +296,788+168.1% | Added |
| Northern Trust Corp | 489,120 | $534.8M | 0.07% | +5,420+1.1% | Added |
| JPMorgan Chase & Co | 554,919 | $556.2M | 0.04% | +42,646+8.3% | Added |
| Van Eck Associates Corp | 524,571 | $573.5M | 0.43% | +22,259+4.4% | Added |
| UBS Group AG | 540,413 | $590.9M | 0.10% | +101,428+23.1% | Added |
| Barclays PLC | 555,808 | $607.7M | 0.22% | −48,994−8.1% | Reduced |
| Massachusetts Financial Services Co | 567,769 | $620.7M | 0.21% | −2,950−0.5% | Reduced |
| Goldman Sachs Group Inc | 568,064 | $621.1M | 0.08% | −25,678−4.3% | Reduced |
| First Trust Advisors LP | 591,353 | $646.6M | 0.46% | −110,101−15.7% | Reduced |
| Morgan Stanley | 656,367 | $717.6M | 0.04% | +7,297+1.1% | Added |
| T. Rowe Price Investment Management, Inc. | 721,622 | $789.0M | 0.54% | −2,872−0.4% | Reduced |
| Franklin Resources Inc | 928,671 | $1.02B | 0.25% | −120,738−11.5% | Reduced |
| Price T Rowe Associates Inc | 1,262,954 | $1.38B | 0.16% | −428,440−25.3% | Reduced |
| Geode Capital Management, LLC | 1,432,066 | $1.56B | 0.10% | +49,786+3.6% | Added |
| State Street Corp | 2,188,454 | $2.40B | 0.08% | +8,035+0.4% | Added |
| Invesco Ltd. | 2,515,987 | $2.75B | 0.27% | +5,007+0.2% | Added |
| Vanguard Portfolio Management LLC | 2,516,492 | $2.75B | 0.14% | +2,516,492 | New |
| Vanguard Capital Management LLC | 3,083,449 | $3.37B | 0.08% | +3,083,449 | New |
| FMR LLC | 4,400,831 | $4.81B | 0.25% | +423,823+10.7% | Added |
| BlackRock, Inc. | 6,072,467 | $6.64B | 0.12% | +110,076+1.8% | Added |
| Analog Century Management LP | 0 | $0 | 0.00% | −70,723−100.0% | Sold out |
| Meridiem Capital Partners LP | 0 | $0 | 0.00% | −42,723−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −24,679−100.0% | Sold out |
| Alyeska Investment Group, L.P. | 0 | $0 | 0.00% | −21,578−100.0% | Sold out |
| Skandinaviska Enskilda Banken AB (publ) | 0 | $0 | 0.00% | −18,613−100.0% | Sold out |
| Moore Capital Management, LP | 0 | $0 | 0.00% | −17,080−100.0% | Sold out |
| FNY Investment Advisers, LLC | 0 | $0 | 0.00% | −10,500−100.0% | Sold out |
| Coppell Advisory Solutions LLC | 0 | $0 | 0.00% | −4,397−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −4,445−100.0% | Sold out |
| GTS Securities LLC | 0 | $0 | 0.00% | −3,848−100.0% | Sold out |
| Mirabaud Asset Management Ltd | 0 | $0 | 0.00% | −4,881−100.0% | Sold out |
| Neo Ivy Capital Management | 0 | $0 | 0.00% | −3,515−100.0% | Sold out |
| Kentucky Retirement Systems | 0 | $0 | 0.00% | −2,906−100.0% | Sold out |
| Osmosis Investment Management UK Ltd | 0 | $0 | 0.00% | −2,473−100.0% | Sold out |
| Sherman Porfolios, LLC | 0 | $0 | 0.00% | −2,145−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −2,025−100.0% | Sold out |
| Lifestyle Asset Management, Inc. | 0 | $0 | 0.00% | −1,997−100.0% | Sold out |
| Diversify Advisory Services, LLC | 0 | $0 | 0.00% | −1,741−100.0% | Sold out |
| Two Sigma Securities, LLC | 0 | $0 | 0.00% | −1,884−100.0% | Sold out |
| Optimize Financial Inc | 0 | $0 | 0.00% | −1,615−100.0% | Sold out |
| Pinebridge Investments LLC | 0 | $0 | 0.00% | −1,578−100.0% | Sold out |
| Virginia Retirement Systems Et Al | 0 | $0 | 0.00% | −1,260−100.0% | Sold out |
| Scientech Research LLC | 0 | $0 | 0.00% | −1,208−100.0% | Sold out |
| Bridgefront Capital, LLC | 0 | $0 | 0.00% | −1,205−100.0% | Sold out |
| Point Nemo Capital, LLC | 0 | $0 | 0.00% | −1,198−100.0% | Sold out |
| HighPoint Advisor Group LLC | 0 | $0 | 0.00% | −1,145−100.0% | Sold out |
| Steel Peak Wealth Management LLC | 0 | $0 | 0.00% | −1,067−100.0% | Sold out |
| CFC Planning Co LLC | 0 | $0 | 0.00% | −1,006−100.0% | Sold out |
| Picton Mahoney Asset Management | 0 | $0 | 0.00% | −981−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −980−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −929−100.0% | Sold out |
| Stevens Capital Management LP | 0 | $0 | 0.00% | −928−100.0% | Sold out |
| Peak Financial Advisors LLC | 0 | $0 | 0.00% | −789−100.0% | Sold out |
| Farringdon Capital, Ltd. | 0 | $0 | 0.00% | −682−100.0% | Sold out |
| LRT Capital Management, LLC | 0 | $0 | 0.00% | −663−100.0% | Sold out |
| Unique Wealth Strategies, LLC | 0 | $0 | 0.00% | −629−100.0% | Sold out |
| Quantitative Investment Management, LLC | 0 | $0 | 0.00% | −627−100.0% | Sold out |
| Laurion Capital Management LP | 0 | $0 | 0.00% | −600−100.0% | Sold out |
| Navellier & Associates Inc | 0 | $0 | 0.00% | −565−100.0% | Sold out |
| Alps Advisors Inc | 0 | $0 | 0.00% | −548−100.0% | Sold out |
| AdvisorShares Investments LLC | 0 | $0 | 0.00% | −520−100.0% | Sold out |
| EFG International AG | 0 | $0 | 0.00% | −504−100.0% | Sold out |
| Campbell & CO Investment Adviser LLC | 0 | $0 | 0.00% | −503−100.0% | Sold out |
| Deroy & Devereaux Private Investment Counsel Inc | 0 | $0 | 0.00% | −500−100.0% | Sold out |
| Financial Advisors Network, Inc. | 0 | $0 | 0.00% | −479−100.0% | Sold out |
| Adams Wealth Management | 0 | $0 | 0.00% | −456−100.0% | Sold out |
| CacheTech Inc. | 0 | $0 | 0.00% | −456−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −458−100.0% | Sold out |
| Covenant Partners, LLC | 0 | $0 | 0.00% | −454−100.0% | Sold out |
| McHugh Group, LLC | 0 | $0 | 0.00% | −425−100.0% | Sold out |
| Yarbrough Capital, LLC | 0 | $0 | 0.00% | −418−100.0% | Sold out |
| Landscape Capital Management, L.L.C. | 0 | $0 | 0.00% | −406−100.0% | Sold out |
| Journey Retirement Planning & Investment Management LLC | 0 | $0 | 0.00% | −405−100.0% | Sold out |
| Forum Financial Management, LP | 0 | $0 | 0.00% | −390−100.0% | Sold out |
| Aptus Capital Advisors, LLC | 0 | $0 | 0.00% | −383−100.0% | Sold out |
| Sage Mountain Advisors LLC | 0 | $0 | 0.00% | −320−100.0% | Sold out |
| Wealthspire Advisors, LLC | 0 | $0 | 0.00% | −301−100.0% | Sold out |
| Unique Wealth, LLC | 0 | $0 | 0.00% | −281−100.0% | Sold out |
| Quest Partners LLC | 0 | $0 | 0.00% | −276−100.0% | Sold out |
| Walser Wealth Management Company, A Ltd Liability Co | 0 | $0 | 0.00% | −273−100.0% | Sold out |
| Hutchens & Kramer Investment Management Group, LLC | 0 | $0 | 0.00% | −272−100.0% | Sold out |
| Howard Capital Management Inc. | 0 | $0 | 0.00% | −270−100.0% | Sold out |
| Occidental Asset Management, LLC | 0 | $0 | 0.00% | −266−100.0% | Sold out |
| OneAscent Financial Services LLC | 0 | $0 | 0.00% | −263−100.0% | Sold out |
| Fedenia Advisers LLC | 0 | $0 | 0.00% | −262−100.0% | Sold out |
| Personal Cfo Solutions, LLC | 0 | $0 | 0.00% | −257−100.0% | Sold out |
| MQS Management LLC | 0 | $0 | 0.00% | −256−100.0% | Sold out |
| Hollencrest Capital Management | 0 | $0 | 0.00% | −245−100.0% | Sold out |
| Gerber Kawasaki Wealth & Investment Management | 0 | $0 | 0.00% | −226−100.0% | Sold out |
| Clear Street Markets LLC | 0 | $0 | 0.00% | −144−100.0% | Sold out |
| Elyxium Wealth, LLC | 0 | $0 | 0.00% | −115−100.0% | Sold out |
| Sentry Investment Management LLC | 0 | $0 | 0.00% | −114−100.0% | Sold out |
| Reflection Asset Management | 0 | $0 | 0.00% | −102−100.0% | Sold out |
| Alphadyne Asset Management LP | 0 | $0 | 0.00% | −67−100.0% | Sold out |
| Greenline Wealth Management LLC | 0 | $0 | 0.00% | −42−100.0% | Sold out |
| University of Texas/Texas Am Investment Managment Co | 0 | $0 | 0.00% | −31−100.0% | Sold out |