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, 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 |
|---|---|---|---|---|---|
| Eventide Asset Management, LLC | 58,154 | $63.4M | 1.05% | −10,219−14.9% | Reduced |
| Resona Asset Management Co.,Ltd. | 57,707 | $61.7M | 0.31% | −8,679−13.1% | Reduced |
| Russell Investments Group, Ltd. | 54,074 | $58.6M | 0.06% | +7,325+15.7% | Added |
| Canada Pension Plan Investment Board | 53,344 | $58.3M | 0.04% | −16,388−23.5% | Reduced |
| CBOE Vest Financial, LLC | 52,323 | $57.2M | 0.69% | −14,290−21.5% | Reduced |
| Jones Financial Companies LLLP | 53,948 | $56.8M | 0.03% | +51,534+2,134.8% | Added |
| Grandeur Peak Global Advisors, LLC | 51,495 | $56.3M | 13.19% | −20,973−28.9% | Reduced |
| Manufacturers Life Insurance Company, The | 49,654 | $54.3M | 0.05% | −4,179−7.8% | Reduced |
| Jennison Associates LLC | 49,394 | $54.0M | 0.04% | −12,434−20.1% | Reduced |
| Federated Hermes, Inc. | 48,564 | $53.1M | 0.09% | +28,280+139.4% | Added |
| Bank of Montreal | 46,470 | $50.8M | 0.02% | −5,818−11.1% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 46,521 | $50.8M | 0.09% | +5,968+14.7% | Added |
| Whittier Trust Co | 42,010 | $49.6M | 0.56% | −2,242−5.1% | Reduced |
| Panagora Asset Management Inc | 42,075 | $46.0M | 0.17% | −14,017−25.0% | Reduced |
| State Board of Administration of Florida Retirement System | 41,634 | $45.5M | 0.09% | −1,642−3.8% | Reduced |
| Mariner, LLC | 41,163 | $44.9M | 0.05% | +38,487+1,438.2% | Added |
| Aviva PLC | 40,871 | $44.7M | 0.07% | +1,016+2.5% | Added |
| Factory Mutual Insurance Co | 39,972 | $43.7M | 0.49% | +700+1.8% | Added |
| Geneva Capital Management LLC | 39,751 | $43.5M | 0.92% | −3,096−7.2% | Reduced |
| Standard Life Aberdeen plc | 39,422 | $43.1M | 0.07% | +1,719+4.6% | Added |
| New York State Teachers Retirement System | 39,403 | $43.1M | 0.09% | −391−1.0% | Reduced |
| Pacer Advisors, Inc. | 38,807 | $42.4M | 0.12% | −11,847−23.4% | Reduced |
| AQR Capital Management LLC | 38,360 | $40.2M | 0.02% | −7,918−17.1% | Reduced |
| RMB Capital Management, LLC | 36,275 | $39.7M | 0.71% | +727+2.0% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 36,439 | $39.5M | 0.05% | +1,287+3.7% | Added |
| Azimuth Capital Investment Management LLC | 36,073 | $39.4M | 1.48% | −137−0.4% | Reduced |
| Toroso Investments, LLC | 35,384 | $38.6M | 0.12% | +9,305+35.7% | Added |
| Pembroke Management, LTD | 34,397 | $37.6M | 5.44% | −18,745−35.3% | Reduced |
| Empowered Funds, LLC | 34,093 | $37.3M | 0.24% | +34,093 | New |
| NewEdge Wealth, LLC | 33,727 | $36.9M | 0.44% | +15,831+88.5% | Added |
| Vontobel Holding Ltd. | 33,260 | $36.4M | 0.13% | −623−1.8% | Reduced |
| NEOS Investment Management LLC | 32,742 | $35.8M | 0.18% | +18,813+135.1% | Added |
| Public Employees Retirement Association of Colorado | 32,689 | $35.7M | 0.14% | −6,900−17.4% | Reduced |
| Danske Bank A/S | 32,674 | $35.7M | 0.09% | +8,257+33.8% | Added |
| Swedbank AB | 32,644 | $35.7M | 0.04% | −4,750−12.7% | Reduced |
| Squarepoint Ops LLC | 32,420 | $35.4M | 0.08% | +30,870+1,991.6% | Added |
| Mitsubishi UFJ Trust & Banking Corp | 31,908 | $34.9M | 0.09% | +2,309+7.8% | Added |
| Pinnacle Financial Partners, Inc. | 31,621 | $34.6M | 0.26% | +1,649+5.5% | Added |
| Handelsbanken Fonder AB | 31,433 | $34.4M | 0.11% | −3,682−10.5% | Reduced |
| PFA Pension, Forsikringsaktieselskab | 31,292 | $34.2M | 0.10% | −22−0.1% | Reduced |
| Swiss Life Asset Management Ltd | 31,027 | $33.9M | 0.17% | +2,223+7.7% | Added |
| Blair William & Co | 30,557 | $33.4M | 0.10% | +16,910+123.9% | Added |
| Susquehanna International Group, LLP | 29,963 | $32.8M | 0.04% | −26,892−47.3% | Reduced |
| Cookson Peirce & Co Inc | 29,474 | $32.2M | 1.36% | +8,138+38.1% | Added |
| Natixis | 29,420 | $32.2M | 0.13% | −1,042−3.4% | Reduced |
| Schroder Investment Management Group | 31,849 | $31.9M | 0.03% | +4,391+16.0% | Added |
| Royal London Asset Management Ltd | 28,955 | $31.7M | 0.07% | −376−1.3% | Reduced |
| Park National Corp | 28,114 | $30.7M | 0.94% | −13,492−32.4% | Reduced |
| SEB Asset Management AB | 27,291 | $29.8M | 0.13% | +27,291 | New |
| New York State Common Retirement Fund | 26,706 | $29.2M | 0.04% | 00.0% | Unchanged |
| NZS Capital, LLC | 26,679 | $29.2M | 0.97% | +470+1.8% | Added |
| Segall Bryant & Hamill, LLC | 26,061 | $28.5M | 0.41% | −3,922−13.1% | Reduced |
| DnB Asset Management AS | 26,049 | $28.5M | 0.10% | −350−1.3% | Reduced |
| Fifth Third Bancorp | 25,811 | $28.2M | 0.05% | +8,987+53.4% | Added |
| Nissay Asset Management Corp | 25,775 | $28.2M | 0.15% | +1,023+4.1% | Added |
| State of Wisconsin Investment Board | 25,655 | $28.0M | 0.06% | −3,702−12.6% | Reduced |
| Sora Investors LLC | 24,585 | $26.9M | 2.48% | +9,814+66.4% | Added |
| Chevy Chase Trust Holdings, Inc. | 24,252 | $26.5M | 0.08% | −325−1.3% | Reduced |
| Vanguard Investments Australia, Ltd. | 23,915 | $26.1M | 0.08% | +23,915 | New |
| Prudential Financial Inc | 22,814 | $24.9M | 0.03% | −662−2.8% | Reduced |
| Avalon Global Asset Management LLC | 22,500 | $24.6M | 5.79% | 00.0% | Unchanged |
| Gotham Asset Management, LLC | 22,482 | $24.6M | 0.08% | +2,321+11.5% | Added |
| Sapient Capital LLC | 22,370 | $24.5M | 0.37% | −13,194−37.1% | Reduced |
| Whittier Trust Co of Nevada Inc | 20,227 | $23.9M | 0.49% | −2,637−11.5% | Reduced |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 21,498 | $23.5M | 0.13% | +8,340+63.4% | Added |
| APG Asset Management N.V. | 24,660 | $23.4M | 0.07% | −2,918−10.6% | Reduced |
| Asset Management One Co.,Ltd. | 21,157 | $23.1M | 0.07% | −316−1.5% | Reduced |
| Public Employees Retirement System of Ohio | 21,147 | $23.1M | 0.07% | −976−4.4% | Reduced |
| Ostrum Asset Management | 20,756 | $22.7M | 1.27% | −26,126−55.7% | Reduced |
| Glenmede Trust Co NA | 20,651 | $22.6M | 0.11% | −148−0.7% | Reduced |
| CIBC Asset Management Inc | 20,386 | $22.3M | 0.05% | +345+1.7% | Added |
| Assetmark, Inc | 20,321 | $22.2M | 0.05% | −60.0% | Reduced |
| Zurich Insurance Group Ltd | 20,198 | $22.1M | 0.17% | +20,198 | New |
| Arcadia Investment Management Corp | 19,901 | $21.8M | 3.73% | −312−1.5% | Reduced |
| Treasurer of the State of North Carolina | 19,816 | $21.7M | 0.07% | +420+2.2% | Added |
| GDS Wealth Management | 19,252 | $21.0M | 1.26% | +993+5.4% | Added |
| Creative Planning | 18,681 | $20.4M | 0.01% | +1,177+6.7% | Added |
| Jupiter Asset Management Ltd | 18,550 | $20.3M | 0.11% | −2,425−11.6% | Reduced |
| Mn Services Vermogensbeheer B.V. | 18,353 | $20.1M | 0.13% | 00.0% | Unchanged |
| Mediolanum International Funds Ltd | 19,930 | $20.0M | 0.21% | −2,386−10.7% | Reduced |
| Parnassus Investments | 18,172 | $19.9M | 0.06% | −8,418−31.7% | Reduced |
| Tredje AP-fonden | 18,171 | $19.9M | 0.11% | +13,599+297.4% | Added |
| Korea Investment CORP | 17,940 | $19.6M | 0.04% | −11,285−38.6% | Reduced |
| KBC Group NV | 17,820 | $19.5M | 0.05% | +5,193+41.1% | Added |
| KLP Kapitalforvaltning AS | 17,720 | $19.4M | 0.08% | +480+2.8% | Added |
| Ceredex Value Advisors LLC | 17,275 | $18.9M | 0.59% | +17,275 | New |
| OP Asset Management Ltd | 16,924 | $18.5M | 0.19% | +11,857+234.0% | Added |
| Clearbridge Investments, LLC | 16,717 | $18.3M | 0.02% | +7,506+81.5% | Added |
| Fred Alger Management, LLC | 16,414 | $18.0M | 0.08% | −1,185−6.7% | Reduced |
| Sanctuary Advisors, LLC | 16,406 | $17.9M | 0.10% | −658−3.9% | Reduced |
| State of New Jersey Common Pension Fund D | 16,338 | $17.9M | 0.07% | +50+0.3% | Added |
| Vident Advisory, LLC | 16,079 | $17.6M | 0.15% | −988−5.8% | Reduced |
| Nisa Investment Advisors, LLC | 15,967 | $17.5M | 0.06% | −1,883−10.5% | Reduced |
| State of Tennessee, Treasury Department | 15,879 | $17.4M | 0.06% | −780−4.7% | Reduced |
| Copeland Capital Management, LLC | 15,755 | $17.2M | 0.38% | −3,399−17.7% | Reduced |
| Moran Wealth Management, LLC | 15,725 | $17.2M | 0.53% | −138−0.9% | Reduced |
| CI Private Wealth, LLC | 15,684 | $17.1M | 0.02% | −35,649−69.4% | Reduced |
| Sit Investment Associates Inc | 15,491 | $16.9M | 0.34% | −425−2.7% | Reduced |
| Toronto Dominion Bank | 15,439 | $16.9M | 0.03% | −8,210−34.7% | Reduced |
| iA Global Asset Management Inc. | 15,146 | $16.6M | 0.23% | +9,190+154.3% | Added |