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.
| 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, Q4 2025
Shares, value and share of portfolio for each institution holding Monolithic Power Systems, Inc.; share changes are against Q3 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| CIBC Private Wealth Group, LLC | 58,914 | $53.4M | 0.09% | −3,449−5.5% | Reduced |
| Susquehanna International Group, LLP | 56,855 | $51.5M | 0.07% | −73,047−56.2% | Reduced |
| Panagora Asset Management Inc | 56,092 | $50.8M | 0.18% | −6,515−10.4% | Reduced |
| Liontrust Investment Partners LLP | 54,933 | $49.8M | 0.74% | +52,724+2,386.8% | Added |
| Manufacturers Life Insurance Company, The | 53,833 | $49.2M | 0.04% | −57,274−51.5% | Reduced |
| Great West Life Assurance Co | 54,156 | $49.1M | 0.09% | −13,494−19.9% | Reduced |
| Pembroke Management, LTD | 53,142 | $48.2M | 4.98% | −794−1.5% | Reduced |
| Bank of Montreal | 52,288 | $47.4M | 0.02% | −1,703−3.2% | Reduced |
| CI Private Wealth, LLC | 51,333 | $47.3M | 0.06% | −2,264−4.2% | Reduced |
| Pacer Advisors, Inc. | 50,654 | $45.9M | 0.12% | −6,989−12.1% | Reduced |
| Whittier Trust Co | 44,252 | $44.5M | 0.48% | +51+0.1% | Added |
| Ostrum Asset Management | 46,882 | $42.5M | 2.04% | +5,578+13.5% | Added |
| Russell Investments Group, Ltd. | 46,749 | $42.4M | 0.05% | +6,622+16.5% | Added |
| AQR Capital Management LLC | 46,278 | $41.9M | 0.02% | +8,573+22.7% | Added |
| State Board of Administration of Florida Retirement System | 43,276 | $39.2M | 0.07% | −573−1.3% | Reduced |
| Geneva Capital Management LLC | 42,847 | $38.8M | 0.73% | +363+0.9% | Added |
| Meridiem Capital Partners LP | 42,723 | $38.7M | 2.43% | +42,723 | New |
| Park National Corp | 41,606 | $37.7M | 1.18% | +1,763+4.4% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 40,553 | $36.8M | 0.06% | +8,198+25.3% | Added |
| Bank of Nova Scotia | 40,474 | $36.7M | 0.05% | +36,698+971.9% | Added |
| Aviva PLC | 39,855 | $36.1M | 0.06% | +2,049+5.4% | Added |
| New York State Teachers Retirement System | 39,794 | $36.1M | 0.07% | −207−0.5% | Reduced |
| Public Employees Retirement Association of Colorado | 39,589 | $35.9M | 0.13% | 00.0% | Unchanged |
| Factory Mutual Insurance Co | 39,272 | $35.6M | 0.36% | −700−1.8% | Reduced |
| Standard Life Aberdeen plc | 37,703 | $34.2M | 0.05% | −228−0.6% | Reduced |
| Swedbank AB | 37,394 | $33.9M | 0.03% | −2,050−5.2% | Reduced |
| Sapient Capital LLC | 35,564 | $32.9M | 0.46% | −467−1.3% | Reduced |
| Azimuth Capital Investment Management LLC | 36,210 | $32.8M | 1.18% | +2,656+7.9% | Added |
| RMB Capital Management, LLC | 35,548 | $32.3M | 0.56% | −3,227−8.3% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 35,152 | $31.9M | 0.05% | +20,493+139.8% | Added |
| Handelsbanken Fonder AB | 35,115 | $31.8M | 0.10% | −1,658−4.5% | Reduced |
| Vontobel Holding Ltd. | 33,883 | $30.7M | 0.10% | −2,156−6.0% | Reduced |
| PFA Pension, Forsikringsaktieselskab | 31,314 | $28.9M | 0.08% | +31,314 | New |
| CIBC World Markets Corp | 31,321 | $28.4M | 0.14% | +31,321 | New |
| Natixis | 30,462 | $27.6M | 0.11% | −7,231−19.2% | Reduced |
| Segall Bryant & Hamill, LLC | 29,983 | $27.2M | 0.37% | −5,825−16.3% | Reduced |
| Pinnacle Financial Partners, Inc. | 29,972 | $27.2M | 0.21% | +29,972 | New |
| Mitsubishi UFJ Trust & Banking Corp | 29,599 | $26.8M | 0.06% | +2,244+8.2% | Added |
| Macquarie Group Ltd | 29,556 | $26.8M | 0.12% | −151,239−83.7% | Reduced |
| State of Wisconsin Investment Board | 29,357 | $26.6M | 0.06% | +1,215+4.3% | Added |
| Royal London Asset Management Ltd | 29,331 | $26.6M | 0.06% | +145+0.5% | Added |
| Korea Investment CORP | 29,225 | $26.5M | 0.05% | +4,200+16.8% | Added |
| Swiss Life Asset Management Ltd | 28,804 | $26.1M | 0.13% | −3,487−10.8% | Reduced |
| Schroder Investment Management Group | 27,458 | $25.3M | 0.02% | +3,025+12.4% | Added |
| Man Group plc | 26,936 | $24.4M | 0.05% | +17,197+176.6% | Added |
| New York State Common Retirement Fund | 26,706 | $24.2M | 0.03% | 00.0% | Unchanged |
| Parnassus Investments | 26,590 | $24.1M | 0.06% | −821−3.0% | Reduced |
| DnB Asset Management AS | 26,399 | $23.9M | 0.08% | −748−2.8% | Reduced |
| NZS Capital, LLC | 26,209 | $23.8M | 0.73% | +209+0.8% | Added |
| Toroso Investments, LLC | 26,079 | $23.6M | 0.10% | +16,572+174.3% | Added |
| Forsta Ap-Fonden | 25,720 | $23.3M | 0.14% | −1,880−6.8% | Reduced |
| Whittier Trust Co of Nevada Inc | 22,864 | $23.0M | 0.48% | +260+1.2% | Added |
| Nissay Asset Management Corp | 24,752 | $22.4M | 0.12% | +8,677+54.0% | Added |
| Millennium Management LLC | 24,679 | $22.4M | 0.02% | −145,811−85.5% | Reduced |
| Chevy Chase Trust Holdings, Inc. | 24,577 | $22.3M | 0.06% | −20.0% | Reduced |
| Danske Bank A/S | 24,417 | $22.1M | 0.05% | −9,641−28.3% | Reduced |
| Lazard Asset Management LLC | 23,783 | $21.6M | 0.04% | +4,754+25.0% | Added |
| Toronto Dominion Bank | 23,649 | $21.4M | 0.04% | −41,408−63.6% | Reduced |
| APG Asset Management N.V. | 27,578 | $21.3M | 0.06% | −916−3.2% | Reduced |
| Prudential Financial Inc | 23,476 | $21.3M | 0.03% | −2,697−10.3% | Reduced |
| Credit Agricole S A | 22,938 | $20.8M | 0.06% | +6,879+42.8% | Added |
| Mediolanum International Funds Ltd | 22,316 | $20.6M | 0.21% | −4,645−17.2% | Reduced |
| Avalon Global Asset Management LLC | 22,500 | $20.4M | 4.53% | 00.0% | Unchanged |
| Public Employees Retirement System of Ohio | 22,123 | $20.1M | 0.06% | −349−1.6% | Reduced |
| Asset Management One Co.,Ltd. | 21,473 | $20.0M | 0.06% | +683+3.3% | Added |
| Alyeska Investment Group, L.P. | 21,578 | $19.6M | 0.06% | +21,578 | New |
| Cookson Peirce & Co Inc | 21,336 | $19.3M | 0.80% | +20,791+3,814.9% | Added |
| Jupiter Asset Management Ltd | 20,975 | $19.0M | 0.15% | −4,521−17.7% | Reduced |
| Glenmede Trust Co NA | 20,799 | $18.9M | 0.09% | +20,799 | New |
| State of Tennessee, Treasury Department | 16,659 | $18.7M | 0.06% | +5,119+44.4% | Added |
| Assetmark, Inc | 20,327 | $18.4M | 0.04% | −864−4.1% | Reduced |
| Federated Hermes, Inc. | 20,284 | $18.4M | 0.03% | +20,205+25,575.9% | Added |
| Arcadia Investment Management Corp | 20,213 | $18.3M | 2.97% | −130−0.6% | Reduced |
| Silvercrest Asset Management Group LLC | 20,209 | $18.3M | 0.13% | +2,101+11.6% | Added |
| Gotham Asset Management, LLC | 20,161 | $18.3M | 0.07% | +551+2.8% | Added |
| CIBC Asset Management Inc | 20,041 | $18.2M | 0.04% | +13,423+202.8% | Added |
| Treasurer of the State of North Carolina | 19,396 | $17.6M | 0.06% | −1,411−6.8% | Reduced |
| Copeland Capital Management, LLC | 19,154 | $17.4M | 0.39% | −1,151−5.7% | Reduced |
| Skandinaviska Enskilda Banken AB (publ) | 18,613 | $16.9M | 0.07% | +3,918+26.7% | Added |
| Mn Services Vermogensbeheer B.V. | 18,353 | $16.6M | 0.10% | +253+1.4% | Added |
| GDS Wealth Management | 18,259 | $16.5M | 1.03% | +205+1.1% | Added |
| NewEdge Wealth, LLC | 17,896 | $16.2M | 0.18% | +964+5.7% | Added |
| Nisa Investment Advisors, LLC | 17,850 | $16.2M | 0.05% | +2,044+12.9% | Added |
| Fred Alger Management, LLC | 17,599 | $16.0M | 0.06% | +2,425+16.0% | Added |
| Creative Planning | 17,504 | $15.9M | 0.01% | +1,648+10.4% | Added |
| Westwood Holdings Group Inc. | 17,378 | $15.8M | 0.13% | −2,437−12.3% | Reduced |
| KLP Kapitalforvaltning AS | 17,240 | $15.6M | 0.06% | +40+0.2% | Added |
| Moore Capital Management, LP | 17,080 | $15.5M | 0.32% | +4,186+32.5% | Added |
| Vident Advisory, LLC | 17,067 | $15.5M | 0.15% | −3,259−16.0% | Reduced |
| Sanctuary Advisors, LLC | 17,064 | $15.5M | 0.08% | −1,093−6.0% | Reduced |
| Advisor Group Holdings, Inc. | 16,830 | $15.3M | 0.02% | −3,918−18.9% | Reduced |
| Fifth Third Bancorp | 16,824 | $15.2M | 0.05% | +1,889+12.6% | Added |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 16,820 | $15.2M | 0.01% | +861+5.4% | Added |
| State of New Jersey Common Pension Fund D | 16,288 | $14.8M | 0.05% | −388−2.3% | Reduced |
| Guggenheim Capital LLC | 16,228 | $14.7M | 0.11% | +12,846+379.8% | Added |
| 1832 Asset Management L.P. | 15,942 | $14.4M | 0.02% | −4,218−20.9% | Reduced |
| Sit Investment Associates Inc | 15,916 | $14.4M | 0.28% | −255−1.6% | Reduced |
| Moran Wealth Management, LLC | 15,863 | $14.4M | 0.44% | +313+2.0% | Added |
| Sora Investors LLC | 14,771 | $13.4M | 1.15% | +14,771 | New |
| Cornerstone Advisors, LLC | 14,692 | $13.3M | 0.44% | +14,692 | New |