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 |
|---|---|---|---|---|---|
| PensionDanmark Pensionsforsikringsaktieselskab | 8,250 | $7.48M | 0.07% | +8,250 | New |
| Teacher Retirement System of Texas | 8,332 | $7.55M | 0.03% | −5,285−38.8% | Reduced |
| Los Angeles Capital Management LLC | 6,953 | $7.56M | 0.03% | −16,292−70.1% | Reduced |
| British Columbia Investment Management Corp | 8,482 | $7.69M | 0.04% | +1,601+23.3% | Added |
| Quest Investment Management LLC | 8,515 | $7.72M | 0.83% | −3,230−27.5% | Reduced |
| Mercer Global Advisors Inc | 8,935 | $8.10M | 0.01% | +594+7.1% | Added |
| Polar Capital Holdings Plc | 9,180 | $8.32M | 0.04% | −8,850−49.1% | Reduced |
| Stratos Wealth Partners, LTD. | 9,189 | $8.33M | 0.09% | −206−2.2% | Reduced |
| Clearbridge Investments, LLC | 9,211 | $8.35M | 0.01% | 00.0% | Unchanged |
| Stanley-Laman Group, Ltd. | 9,237 | $8.37M | 1.07% | +20.0% | Added |
| BLB&B Advisors, LLC | 9,283 | $8.41M | 0.35% | −298−3.1% | Reduced |
| Bokf, NA | 9,288 | $8.42M | 0.13% | −3,342−26.5% | Reduced |
| Bank Julius Baer & Co. Ltd, Zurich | 9,221 | $8.50M | 0.02% | −1,267−12.1% | Reduced |
| Tower Research Capital LLC (TRC) | 9,430 | $8.55M | 0.21% | +6,854+266.1% | Added |
| UniSuper Management Pty Ltd | 9,455 | $8.57M | 0.05% | −919−8.9% | Reduced |
| USS Investment Management Ltd | 9,629 | $8.73M | 0.04% | −34−0.4% | Reduced |
| Titan Investment Solutions Ltd | 9,710 | $8.80M | 1.06% | +9,710 | New |
| JustInvest LLC | 9,910 | $8.98M | 0.09% | +666+7.2% | Added |
| Larson Financial Group LLC | 9,985 | $9.05M | 0.30% | +131+1.3% | Added |
| Eurizon Capital SGR S.p.A. | 10,029 | $9.09M | 0.03% | +10,029 | New |
| Vantage Investment Partners, LLC | 10,097 | $9.15M | 0.61% | −34,487−77.4% | Reduced |
| CWM Advisors, LLC | 10,105 | $9.16M | 0.82% | +1,744+20.9% | Added |
| GF Fund Management Co. Ltd. | 10,105 | $9.16M | 0.16% | +10,105 | New |
| GWM Advisors LLC | 10,144 | $9.19M | 0.03% | −1,583−13.5% | Reduced |
| Retirement Systems of Alabama | 10,192 | $9.24M | 0.03% | −25−0.2% | Reduced |
| Generate Investment Management Ltd | 10,331 | $9.36M | 0.43% | +10,331 | New |
| Lord, Abbett & Co. LLC | 10,375 | $9.40M | 0.03% | −13,125−55.9% | Reduced |
| FNY Investment Advisers, LLC | 10,500 | $9.52M | 2.72% | +10,500 | New |
| Hantz Financial Services, Inc. | 10,591 | $9.60M | 0.14% | −2,054−16.2% | Reduced |
| Amalgamated Bank | 10,815 | $9.80M | 0.07% | +361+3.5% | Added |
| NorthCrest Asset Manangement, LLC | 10,267 | $9.81M | 0.22% | 00.0% | Unchanged |
| Commonwealth of Pennsylvania Public School Empls Retrmt Sys | 11,143 | $10.1M | 0.05% | −358−3.1% | Reduced |
| Citadel Advisors LLC | 11,229 | $10.2M | 0.01% | −249,237−95.7% | Reduced |
| Nomura Holdings Inc | 11,230 | $10.2M | 0.03% | +8,667+338.2% | Added |
| Storebrand Asset Management AS | 11,445 | $10.4M | 0.03% | +863+8.2% | Added |
| Carderock Capital Management Inc | 11,469 | $10.4M | 2.52% | +2,946+34.6% | Added |
| Pathstone Holdings, LLC | 11,674 | $10.6M | 0.04% | −754−6.1% | Reduced |
| Lansforsakringar Fondforvaltning AB (publ) | 11,699 | $10.6M | 0.05% | +155+1.3% | Added |
| Stephens Investment Management Group LLC | 11,836 | $10.7M | 0.14% | +11,836 | New |
| Xponance, Inc. | 11,870 | $10.8M | 0.08% | +648+5.8% | Added |
| Nicholas Investment Partners, LP | 11,912 | $10.8M | 0.79% | 00.0% | Unchanged |
| US Bancorp | 12,045 | $10.9M | 0.01% | +293+2.5% | Added |
| KBC Group NV | 12,627 | $11.4M | 0.03% | +2,761+28.0% | Added |
| Czech National Bank | 12,632 | $11.4M | 0.07% | +468+3.8% | Added |
| Cetera Investment Advisers | 12,794 | $11.6M | 0.01% | +229+1.8% | Added |
| Silvant Capital Management LLC | 12,895 | $11.7M | 0.39% | +1,003+8.4% | Added |
| Arizona State Retirement System | 13,128 | $11.9M | 0.06% | −989−7.0% | Reduced |
| Fjarde Ap-Fonden /Fourth Swedish National Pension Fund | 13,158 | $11.9M | 0.10% | +360+2.8% | Added |
| The PNC Financial Services Group, Inc. | 13,304 | $12.1M | 0.01% | +116+0.9% | Added |
| Cullen/Frost Bankers, Inc. | 13,314 | $12.1M | 0.13% | +552+4.3% | Added |
| Harvest Fund Management Co., Ltd | 13,546 | $12.3M | 0.46% | +4,600+51.4% | Added |
| Blair William & Co | 13,647 | $12.4M | 0.03% | +3,465+34.0% | Added |
| Lombard Odier Asset Management (Europe) Ltd | 13,650 | $12.4M | 0.63% | −316−2.3% | Reduced |
| Rakuten Investment Management, Inc. | 13,307 | $12.4M | 0.04% | −200,957−93.8% | Reduced |
| MetLife Investment Management | 13,692 | $12.4M | 0.06% | −358−2.5% | Reduced |
| State of Michigan Retirement System | 13,770 | $12.5M | 0.06% | −300−2.1% | Reduced |
| Colony Group, LLC | 13,852 | $12.6M | 0.01% | +1,979+16.7% | Added |
| NEOS Investment Management LLC | 13,929 | $12.6M | 0.07% | +11,987+617.3% | Added |
| Burney Co | 13,965 | $12.7M | 0.39% | −767−5.2% | Reduced |
| Daiwa Securities Group Inc. | 14,310 | $13.0M | 0.04% | +4,081+39.9% | Added |
| Meeder Asset Management Inc | 14,681 | $13.3M | 0.72% | +98+0.7% | Added |
| Cornerstone Advisors, LLC | 14,692 | $13.3M | 0.44% | +14,692 | New |
| Sora Investors LLC | 14,771 | $13.4M | 1.15% | +14,771 | New |
| Moran Wealth Management, LLC | 15,863 | $14.4M | 0.44% | +313+2.0% | Added |
| Sit Investment Associates Inc | 15,916 | $14.4M | 0.28% | −255−1.6% | Reduced |
| 1832 Asset Management L.P. | 15,942 | $14.4M | 0.02% | −4,218−20.9% | Reduced |
| Guggenheim Capital LLC | 16,228 | $14.7M | 0.11% | +12,846+379.8% | Added |
| State of New Jersey Common Pension Fund D | 16,288 | $14.8M | 0.05% | −388−2.3% | Reduced |
| DZ BANK AG Deutsche Zentral Genossenschafts Bank, Frankfurt am Main | 16,820 | $15.2M | 0.01% | +861+5.4% | Added |
| Fifth Third Bancorp | 16,824 | $15.2M | 0.05% | +1,889+12.6% | Added |
| Advisor Group Holdings, Inc. | 16,830 | $15.3M | 0.02% | −3,918−18.9% | Reduced |
| Sanctuary Advisors, LLC | 17,064 | $15.5M | 0.08% | −1,093−6.0% | Reduced |
| Vident Advisory, LLC | 17,067 | $15.5M | 0.15% | −3,259−16.0% | Reduced |
| Moore Capital Management, LP | 17,080 | $15.5M | 0.32% | +4,186+32.5% | Added |
| KLP Kapitalforvaltning AS | 17,240 | $15.6M | 0.06% | +40+0.2% | Added |
| Westwood Holdings Group Inc. | 17,378 | $15.8M | 0.13% | −2,437−12.3% | Reduced |
| Creative Planning | 17,504 | $15.9M | 0.01% | +1,648+10.4% | Added |
| Fred Alger Management, LLC | 17,599 | $16.0M | 0.06% | +2,425+16.0% | Added |
| Nisa Investment Advisors, LLC | 17,850 | $16.2M | 0.05% | +2,044+12.9% | Added |
| NewEdge Wealth, LLC | 17,896 | $16.2M | 0.18% | +964+5.7% | Added |
| GDS Wealth Management | 18,259 | $16.5M | 1.03% | +205+1.1% | Added |
| Mn Services Vermogensbeheer B.V. | 18,353 | $16.6M | 0.10% | +253+1.4% | Added |
| Skandinaviska Enskilda Banken AB (publ) | 18,613 | $16.9M | 0.07% | +3,918+26.7% | Added |
| Copeland Capital Management, LLC | 19,154 | $17.4M | 0.39% | −1,151−5.7% | Reduced |
| Treasurer of the State of North Carolina | 19,396 | $17.6M | 0.06% | −1,411−6.8% | Reduced |
| CIBC Asset Management Inc | 20,041 | $18.2M | 0.04% | +13,423+202.8% | Added |
| Gotham Asset Management, LLC | 20,161 | $18.3M | 0.07% | +551+2.8% | Added |
| Silvercrest Asset Management Group LLC | 20,209 | $18.3M | 0.13% | +2,101+11.6% | Added |
| Arcadia Investment Management Corp | 20,213 | $18.3M | 2.97% | −130−0.6% | Reduced |
| Federated Hermes, Inc. | 20,284 | $18.4M | 0.03% | +20,205+25,575.9% | Added |
| Assetmark, Inc | 20,327 | $18.4M | 0.04% | −864−4.1% | Reduced |
| State of Tennessee, Treasury Department | 16,659 | $18.7M | 0.06% | +5,119+44.4% | Added |
| Glenmede Trust Co NA | 20,799 | $18.9M | 0.09% | +20,799 | New |
| Jupiter Asset Management Ltd | 20,975 | $19.0M | 0.15% | −4,521−17.7% | Reduced |
| Cookson Peirce & Co Inc | 21,336 | $19.3M | 0.80% | +20,791+3,814.9% | Added |
| Alyeska Investment Group, L.P. | 21,578 | $19.6M | 0.06% | +21,578 | New |
| Asset Management One Co.,Ltd. | 21,473 | $20.0M | 0.06% | +683+3.3% | Added |
| Public Employees Retirement System of Ohio | 22,123 | $20.1M | 0.06% | −349−1.6% | Reduced |
| Avalon Global Asset Management LLC | 22,500 | $20.4M | 4.53% | 00.0% | Unchanged |
| Mediolanum International Funds Ltd | 22,316 | $20.6M | 0.21% | −4,645−17.2% | Reduced |