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, Q3 2025
Institutional positions in Monolithic Power Systems, Inc. as of Sep 30, 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
- 981
- +89 vs. Q2 2025
- Shares held
- 46.8M
- +118.5K (+0.3%) vs. Q2 2025
- Total value
- $43.0B
- +$8.79B (+25.7%) vs. Q2 2025
- New holders
- 164
- 361 more added
- Sold out
- 75
- 317 more reduced
15 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 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, Q3 2025
Shares, value and share of portfolio for each institution holding Monolithic Power Systems, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Acadian Asset Management LLC | 17,723 | $16.3M | 0.03% | +8,852+99.8% | Added |
| Polar Capital Holdings Plc | 18,030 | $16.6M | 0.08% | +5,980+49.6% | Added |
| GDS Wealth Management | 18,054 | $16.6M | 1.10% | +1,169+6.9% | Added |
| Mn Services Vermogensbeheer B.V. | 18,100 | $16.7M | 0.11% | −200−1.1% | Reduced |
| Silvercrest Asset Management Group LLC | 18,108 | $16.7M | 0.11% | +787+4.5% | Added |
| Sanctuary Advisors, LLC | 18,157 | $16.7M | 0.10% | −858−4.5% | Reduced |
| NewEdge Wealth, LLC | 16,932 | $16.9M | 0.24% | +15,937+1,601.7% | Added |
| Lazard Asset Management LLC | 19,029 | $17.5M | 0.02% | +4,658+32.4% | Added |
| Gotham Asset Management, LLC | 19,610 | $18.1M | 0.08% | −525−2.6% | Reduced |
| Westwood Holdings Group Inc. | 19,815 | $18.2M | 0.13% | +9,257+87.7% | Added |
| 1832 Asset Management L.P. | 20,160 | $18.6M | 0.03% | +16,356+430.0% | Added |
| Copeland Capital Management, LLC | 20,305 | $18.7M | 0.39% | −1,198−5.6% | Reduced |
| Vident Advisory, LLC | 20,326 | $18.7M | 0.18% | −1,740−7.9% | Reduced |
| Arcadia Investment Management Corp | 20,343 | $18.7M | 2.89% | +96+0.5% | Added |
| Advisor Group Holdings, Inc. | 20,748 | $18.8M | 0.03% | +13,515+186.9% | Added |
| Janney Montgomery Scott LLC | 20,483 | $18.9M | 0.04% | −1,863−8.3% | Reduced |
| Asset Management One Co.,Ltd. | 20,790 | $19.1M | 0.06% | −678−3.2% | Reduced |
| Treasurer of the State of North Carolina | 20,807 | $19.2M | 0.06% | −14,982−41.9% | Reduced |
| Assetmark, Inc | 21,191 | $19.5M | 0.04% | +610+3.0% | Added |
| Glenmede Investment Management, LP | 22,288 | $20.5M | 0.10% | +80.0% | Added |
| Public Employees Retirement System of Ohio | 22,472 | $20.7M | 0.07% | −1,472−6.1% | Reduced |
| Avalon Global Asset Management LLC | 22,500 | $20.7M | 4.75% | +2,500+12.5% | Added |
| Whittier Trust Co of Nevada Inc | 22,604 | $20.8M | 0.44% | +126+0.6% | Added |
| Canada Pension Plan Investment Board | 22,652 | $20.9M | 0.01% | −34,123−60.1% | Reduced |
| Los Angeles Capital Management LLC | 23,245 | $21.4M | 0.07% | −3,168−12.0% | Reduced |
| Lord, Abbett & Co. LLC | 23,500 | $21.6M | 0.06% | +23,500 | New |
| National Bank of Canada | 24,174 | $22.3M | 0.03% | −14,188−37.0% | Reduced |
| APG Asset Management N.V. | 28,494 | $22.3M | 0.06% | 00.0% | Unchanged |
| Schroder Investment Management Group | 24,433 | $22.5M | 0.02% | +1,083+4.6% | Added |
| Chevy Chase Trust Holdings, Inc. | 24,579 | $22.6M | 0.06% | −725−2.9% | Reduced |
| Pinnacle Financial Partners Inc | 24,589 | $22.6M | 0.54% | −1,365−5.3% | Reduced |
| Korea Investment CORP | 25,025 | $23.0M | 0.05% | +10.0% | Added |
| ProShare Advisors LLC | 25,379 | $23.4M | 0.05% | −3,052−10.7% | Reduced |
| Jupiter Asset Management Ltd | 25,496 | $23.5M | 0.20% | −44,860−63.8% | Reduced |
| Mediolanum International Funds Ltd | 26,961 | $23.9M | 0.25% | +110.0% | Added |
| NZS Capital, LLC | 26,000 | $23.9M | 0.73% | +26,000 | New |
| Prudential Financial Inc | 26,173 | $24.1M | 0.03% | −1,719−6.2% | Reduced |
| New York State Common Retirement Fund | 26,706 | $24.6M | 0.03% | +3,300+14.1% | Added |
| DnB Asset Management AS | 27,147 | $25.0M | 0.09% | +2,081+8.3% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 27,355 | $25.2M | 0.06% | −1,447−5.0% | Reduced |
| Parnassus Investments | 27,411 | $25.2M | 0.06% | −301−1.1% | Reduced |
| Forsta Ap-Fonden | 27,600 | $25.4M | 0.15% | +700+2.6% | Added |
| State of Wisconsin Investment Board | 28,142 | $25.9M | 0.06% | +2,633+10.3% | Added |
| Royal London Asset Management Ltd | 29,186 | $26.9M | 0.06% | −205−0.7% | Reduced |
| Swiss Life Asset Management Ltd | 32,291 | $29.7M | 0.15% | +484+1.5% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 32,355 | $29.8M | 0.05% | +1,108+3.5% | Added |
| Azimuth Capital Investment Management LLC | 33,554 | $30.9M | 1.11% | −243−0.7% | Reduced |
| Danske Bank A/S | 34,058 | $31.4M | 0.08% | +12,226+56.0% | Added |
| Public Sector Pension Investment Board | 34,587 | $31.8M | 0.12% | +556+1.6% | Added |
| Sapient Capital LLC | 36,031 | $32.1M | 0.49% | −893−2.4% | Reduced |
| Segall Bryant & Hamill, LLC | 35,808 | $33.0M | 0.44% | −3,519−8.9% | Reduced |
| Vontobel Holding Ltd. | 36,039 | $33.2M | 0.10% | −2,621−6.8% | Reduced |
| Handelsbanken Fonder AB | 36,773 | $33.9M | 0.11% | +6,810+22.7% | Added |
| Standard Life Aberdeen plc | 37,931 | $34.3M | 0.05% | +42+0.1% | Added |
| AQR Capital Management LLC | 37,705 | $34.4M | 0.02% | −3,739−9.0% | Reduced |
| Natixis | 37,693 | $34.7M | 0.19% | +5,154+15.8% | Added |
| Aviva PLC | 37,806 | $34.8M | 0.06% | +2,104+5.9% | Added |
| Rakuten Investment Management, Inc. | 214,264 | $35.1M | 0.14% | +214,264 | New |
| RMB Capital Management, LLC | 38,775 | $35.7M | 0.66% | −148−0.4% | Reduced |
| Swedbank AB | 39,444 | $36.3M | 0.04% | 00.0% | Unchanged |
| Public Employees Retirement Association of Colorado | 39,589 | $36.4M | 0.13% | +6,871+21.0% | Added |
| Park National Corp | 39,843 | $36.7M | 1.15% | −1,270−3.1% | Reduced |
| Factory Mutual Insurance Co | 39,972 | $36.8M | 0.36% | 00.0% | Unchanged |
| New York State Teachers Retirement System | 40,001 | $36.8M | 0.07% | +296+0.7% | Added |
| Russell Investments Group, Ltd. | 40,127 | $36.9M | 0.04% | +13,035+48.1% | Added |
| Eventide Asset Management, LLC | 41,242 | $38.0M | 0.62% | −1,057−2.5% | Reduced |
| Lombard Odier Asset Management (Europe) Ltd | 13,966 | $38.0M | 1.95% | +1,250+9.8% | Added |
| Ostrum Asset Management | 41,304 | $38.0M | 1.71% | −512−1.2% | Reduced |
| Geneva Capital Management LLC | 42,484 | $39.1M | 0.67% | −977−2.2% | Reduced |
| State Board of Administration of Florida Retirement System | 43,849 | $40.4M | 0.07% | −4,501−9.3% | Reduced |
| Whittier Trust Co | 44,201 | $40.6M | 0.46% | +678+1.6% | Added |
| Vantage Investment Partners, LLC | 44,584 | $41.0M | 2.81% | −2,952−6.2% | Reduced |
| Andra AP-fonden | 48,119 | $44.3M | 0.57% | −5,000−9.4% | Reduced |
| Bamco Inc | 48,196 | $44.4M | 0.12% | −2,824−5.5% | Reduced |
| CBOE Vest Financial, LLC | 49,277 | $45.4M | 0.59% | +16,892+52.2% | Added |
| Holocene Advisors, LP | 51,171 | $47.1M | 0.11% | +51,171 | New |
| CI Private Wealth, LLC | 53,597 | $49.3M | 0.08% | −56,685−51.4% | Reduced |
| Pembroke Management, LTD | 53,936 | $49.7M | 4.93% | −1,033−1.9% | Reduced |
| Jennison Associates LLC | 53,955 | $49.7M | 0.03% | +3,271+6.5% | Added |
| Bank of Montreal | 53,991 | $49.7M | 0.02% | +2,802+5.5% | Added |
| Quantinno Capital Management LP | 54,614 | $50.3M | 0.14% | +11,645+27.1% | Added |
| Pacer Advisors, Inc. | 57,643 | $53.1M | 0.14% | +3,968+7.4% | Added |
| LPL Financial LLC | 58,083 | $53.5M | 0.02% | −1,172−2.0% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 58,354 | $53.7M | 0.17% | −19,409−25.0% | Reduced |
| CIBC Private Wealth Group, LLC | 62,363 | $57.4M | 0.10% | −1,277−2.0% | Reduced |
| Panagora Asset Management Inc | 62,607 | $57.6M | 0.23% | +224+0.4% | Added |
| Toronto Dominion Bank | 65,057 | $59.9M | 0.12% | +40,728+167.4% | Added |
| Great West Life Assurance Co | 67,650 | $59.9M | 0.09% | +741+1.1% | Added |
| Grandeur Peak Global Advisors, LLC | 65,175 | $60.0M | 8.05% | −3,111−4.6% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 65,413 | $60.2M | 0.14% | −5,270−7.5% | Reduced |
| HRT Financial LP | 65,877 | $60.6M | 0.22% | +65,877 | New |
| Caisse de Depot Et Placement du Quebec | 66,754 | $61.5M | 0.11% | +808+1.2% | Added |
| Resona Asset Management Co.,Ltd. | 70,729 | $64.5M | 0.31% | −10,064−12.5% | Reduced |
| Wells Fargo & Company | 71,877 | $66.2M | 0.01% | −10,208−12.4% | Reduced |
| TD Asset Management Inc | 74,628 | $68.7M | 0.06% | −15,158−16.9% | Reduced |
| Zevenbergen Capital Investments LLC | 74,668 | $68.7M | 1.34% | +32,240+76.0% | Added |
| California State Teachers Retirement System | 74,748 | $68.8M | 0.07% | +396+0.5% | Added |
| Analog Century Management LP | 77,591 | $71.4M | 3.84% | +77,591 | New |
| STRS Ohio | 77,807 | $71.6M | 0.26% | −31,599−28.9% | Reduced |
| National Pension Service | 79,014 | $72.7M | 0.06% | +1,863+2.4% | Added |