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 |
|---|---|---|---|---|---|
| Quantinno Capital Management LP | 54,614 | $50.3M | 0.14% | +11,645+27.1% | Added |
| Bank of Montreal | 53,991 | $49.7M | 0.02% | +2,802+5.5% | Added |
| Jennison Associates LLC | 53,955 | $49.7M | 0.03% | +3,271+6.5% | Added |
| Pembroke Management, LTD | 53,936 | $49.7M | 4.93% | −1,033−1.9% | Reduced |
| CI Private Wealth, LLC | 53,597 | $49.3M | 0.08% | −56,685−51.4% | Reduced |
| Holocene Advisors, LP | 51,171 | $47.1M | 0.11% | +51,171 | New |
| CBOE Vest Financial, LLC | 49,277 | $45.4M | 0.59% | +16,892+52.2% | Added |
| Bamco Inc | 48,196 | $44.4M | 0.12% | −2,824−5.5% | Reduced |
| Andra AP-fonden | 48,119 | $44.3M | 0.57% | −5,000−9.4% | Reduced |
| Vantage Investment Partners, LLC | 44,584 | $41.0M | 2.81% | −2,952−6.2% | Reduced |
| Whittier Trust Co | 44,201 | $40.6M | 0.46% | +678+1.6% | Added |
| State Board of Administration of Florida Retirement System | 43,849 | $40.4M | 0.07% | −4,501−9.3% | Reduced |
| Geneva Capital Management LLC | 42,484 | $39.1M | 0.67% | −977−2.2% | Reduced |
| Ostrum Asset Management | 41,304 | $38.0M | 1.71% | −512−1.2% | Reduced |
| Lombard Odier Asset Management (Europe) Ltd | 13,966 | $38.0M | 1.95% | +1,250+9.8% | Added |
| Eventide Asset Management, LLC | 41,242 | $38.0M | 0.62% | −1,057−2.5% | Reduced |
| Russell Investments Group, Ltd. | 40,127 | $36.9M | 0.04% | +13,035+48.1% | Added |
| New York State Teachers Retirement System | 40,001 | $36.8M | 0.07% | +296+0.7% | Added |
| Factory Mutual Insurance Co | 39,972 | $36.8M | 0.36% | 00.0% | Unchanged |
| Park National Corp | 39,843 | $36.7M | 1.15% | −1,270−3.1% | Reduced |
| Public Employees Retirement Association of Colorado | 39,589 | $36.4M | 0.13% | +6,871+21.0% | Added |
| Swedbank AB | 39,444 | $36.3M | 0.04% | 00.0% | Unchanged |
| RMB Capital Management, LLC | 38,775 | $35.7M | 0.66% | −148−0.4% | Reduced |
| Rakuten Investment Management, Inc. | 214,264 | $35.1M | 0.14% | +214,264 | New |
| Aviva PLC | 37,806 | $34.8M | 0.06% | +2,104+5.9% | Added |
| Natixis | 37,693 | $34.7M | 0.19% | +5,154+15.8% | Added |
| AQR Capital Management LLC | 37,705 | $34.4M | 0.02% | −3,739−9.0% | Reduced |
| Standard Life Aberdeen plc | 37,931 | $34.3M | 0.05% | +42+0.1% | Added |
| Handelsbanken Fonder AB | 36,773 | $33.9M | 0.11% | +6,810+22.7% | Added |
| Vontobel Holding Ltd. | 36,039 | $33.2M | 0.10% | −2,621−6.8% | Reduced |
| Segall Bryant & Hamill, LLC | 35,808 | $33.0M | 0.44% | −3,519−8.9% | Reduced |
| Sapient Capital LLC | 36,031 | $32.1M | 0.49% | −893−2.4% | Reduced |
| Public Sector Pension Investment Board | 34,587 | $31.8M | 0.12% | +556+1.6% | Added |
| Danske Bank A/S | 34,058 | $31.4M | 0.08% | +12,226+56.0% | Added |
| Azimuth Capital Investment Management LLC | 33,554 | $30.9M | 1.11% | −243−0.7% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 32,355 | $29.8M | 0.05% | +1,108+3.5% | Added |
| Swiss Life Asset Management Ltd | 32,291 | $29.7M | 0.15% | +484+1.5% | Added |
| Royal London Asset Management Ltd | 29,186 | $26.9M | 0.06% | −205−0.7% | Reduced |
| State of Wisconsin Investment Board | 28,142 | $25.9M | 0.06% | +2,633+10.3% | Added |
| Forsta Ap-Fonden | 27,600 | $25.4M | 0.15% | +700+2.6% | Added |
| Parnassus Investments | 27,411 | $25.2M | 0.06% | −301−1.1% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 27,355 | $25.2M | 0.06% | −1,447−5.0% | Reduced |
| DnB Asset Management AS | 27,147 | $25.0M | 0.09% | +2,081+8.3% | Added |
| New York State Common Retirement Fund | 26,706 | $24.6M | 0.03% | +3,300+14.1% | Added |
| Prudential Financial Inc | 26,173 | $24.1M | 0.03% | −1,719−6.2% | Reduced |
| NZS Capital, LLC | 26,000 | $23.9M | 0.73% | +26,000 | New |
| Mediolanum International Funds Ltd | 26,961 | $23.9M | 0.25% | +110.0% | Added |
| Jupiter Asset Management Ltd | 25,496 | $23.5M | 0.20% | −44,860−63.8% | Reduced |
| ProShare Advisors LLC | 25,379 | $23.4M | 0.05% | −3,052−10.7% | Reduced |
| Korea Investment CORP | 25,025 | $23.0M | 0.05% | +10.0% | Added |
| Pinnacle Financial Partners Inc | 24,589 | $22.6M | 0.54% | −1,365−5.3% | Reduced |
| Chevy Chase Trust Holdings, Inc. | 24,579 | $22.6M | 0.06% | −725−2.9% | Reduced |
| Schroder Investment Management Group | 24,433 | $22.5M | 0.02% | +1,083+4.6% | Added |
| APG Asset Management N.V. | 28,494 | $22.3M | 0.06% | 00.0% | Unchanged |
| National Bank of Canada | 24,174 | $22.3M | 0.03% | −14,188−37.0% | Reduced |
| Lord, Abbett & Co. LLC | 23,500 | $21.6M | 0.06% | +23,500 | New |
| Los Angeles Capital Management LLC | 23,245 | $21.4M | 0.07% | −3,168−12.0% | Reduced |
| Canada Pension Plan Investment Board | 22,652 | $20.9M | 0.01% | −34,123−60.1% | Reduced |
| Whittier Trust Co of Nevada Inc | 22,604 | $20.8M | 0.44% | +126+0.6% | Added |
| Avalon Global Asset Management LLC | 22,500 | $20.7M | 4.75% | +2,500+12.5% | Added |
| Public Employees Retirement System of Ohio | 22,472 | $20.7M | 0.07% | −1,472−6.1% | Reduced |
| Glenmede Investment Management, LP | 22,288 | $20.5M | 0.10% | +80.0% | Added |
| Assetmark, Inc | 21,191 | $19.5M | 0.04% | +610+3.0% | Added |
| Treasurer of the State of North Carolina | 20,807 | $19.2M | 0.06% | −14,982−41.9% | Reduced |
| Asset Management One Co.,Ltd. | 20,790 | $19.1M | 0.06% | −678−3.2% | Reduced |
| Janney Montgomery Scott LLC | 20,483 | $18.9M | 0.04% | −1,863−8.3% | Reduced |
| Advisor Group Holdings, Inc. | 20,748 | $18.8M | 0.03% | +13,515+186.9% | Added |
| Arcadia Investment Management Corp | 20,343 | $18.7M | 2.89% | +96+0.5% | Added |
| Vident Advisory, LLC | 20,326 | $18.7M | 0.18% | −1,740−7.9% | Reduced |
| Copeland Capital Management, LLC | 20,305 | $18.7M | 0.39% | −1,198−5.6% | Reduced |
| 1832 Asset Management L.P. | 20,160 | $18.6M | 0.03% | +16,356+430.0% | Added |
| Westwood Holdings Group Inc. | 19,815 | $18.2M | 0.13% | +9,257+87.7% | Added |
| Gotham Asset Management, LLC | 19,610 | $18.1M | 0.08% | −525−2.6% | Reduced |
| Lazard Asset Management LLC | 19,029 | $17.5M | 0.02% | +4,658+32.4% | Added |
| NewEdge Wealth, LLC | 16,932 | $16.9M | 0.24% | +15,937+1,601.7% | Added |
| Sanctuary Advisors, LLC | 18,157 | $16.7M | 0.10% | −858−4.5% | Reduced |
| Silvercrest Asset Management Group LLC | 18,108 | $16.7M | 0.11% | +787+4.5% | Added |
| Mn Services Vermogensbeheer B.V. | 18,100 | $16.7M | 0.11% | −200−1.1% | Reduced |
| GDS Wealth Management | 18,054 | $16.6M | 1.10% | +1,169+6.9% | Added |
| Polar Capital Holdings Plc | 18,030 | $16.6M | 0.08% | +5,980+49.6% | Added |
| Acadian Asset Management LLC | 17,723 | $16.3M | 0.03% | +8,852+99.8% | Added |
| KLP Kapitalforvaltning AS | 17,200 | $15.9M | 0.06% | +100+0.6% | Added |
| State of New Jersey Common Pension Fund D | 16,676 | $15.4M | 0.06% | +660+4.1% | Added |
| Sit Investment Associates Inc | 16,171 | $14.9M | 0.30% | −420−2.5% | Reduced |
| Nissay Asset Management Corp | 16,075 | $14.8M | 0.08% | −2,854−15.1% | Reduced |
| Credit Agricole S A | 16,059 | $14.8M | 0.05% | +16,059 | New |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 15,959 | $14.7M | 0.01% | +13,810+642.6% | Added |
| Creative Planning | 15,856 | $14.6M | 0.01% | +1,266+8.7% | Added |
| Nisa Investment Advisors, LLC | 15,806 | $14.6M | 0.06% | +4,364+38.1% | Added |
| Moran Wealth Management, LLC | 15,550 | $14.3M | 0.43% | −198−1.3% | Reduced |
| Thrivent Financial for Lutherans | 15,280 | $14.1M | 0.03% | +12,317+415.7% | Added |
| Fred Alger Management, LLC | 15,174 | $14.0M | 0.05% | −3,028−16.6% | Reduced |
| Fifth Third Bancorp | 14,935 | $13.7M | 0.04% | +2,314+18.3% | Added |
| Burney Co | 14,732 | $13.6M | 0.43% | +13,516+1,111.5% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 14,695 | $13.5M | 0.05% | −3,799−20.5% | Reduced |
| Meeder Asset Management Inc | 14,583 | $13.4M | 0.77% | +70.0% | Added |
| Jane Street Group, LLC | 14,388 | $13.2M | 0.02% | +9,316+183.7% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 14,659 | $13.1M | 0.02% | −7,569−34.1% | Reduced |
| Arizona State Retirement System | 14,117 | $13.0M | 0.07% | +158+1.1% | Added |
| State of Michigan Retirement System | 14,070 | $13.0M | 0.06% | −100−0.7% | Reduced |