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, Q2 2025
Institutional positions in Monolithic Power Systems, Inc. as of Jun 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
- 907
- +55 vs. Q1 2025
- Shares held
- 47.4M
- +747.4K (+1.6%) vs. Q1 2025
- Total value
- $34.6B
- +$7.61B (+28.2%) vs. Q1 2025
- New holders
- 139
- 376 more added
- Sold out
- 84
- 299 more reduced
10 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2025
Shares, value and share of portfolio for each institution holding Monolithic Power Systems, Inc.; share changes are against Q1 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Whittier Trust Co | 43,523 | $31.8M | 0.38% | +1,037+2.4% | Added |
| Vantage Investment Partners, LLC | 47,536 | $34.8M | 2.53% | +3,768+8.6% | Added |
| Twinbeech Capital LP | 48,016 | $35.1M | 0.80% | +48,016 | New |
| State Board of Administration of Florida Retirement System | 48,350 | $35.4M | 0.06% | +99+0.2% | Added |
| Jennison Associates LLC | 50,684 | $37.1M | 0.02% | +9,045+21.7% | Added |
| Bamco Inc | 51,020 | $37.3M | 0.10% | +1,215+2.4% | Added |
| Bank of Montreal | 51,189 | $37.4M | 0.02% | +3,863+8.2% | Added |
| Andra AP-fonden | 53,119 | $38.9M | 0.54% | +11,300+27.0% | Added |
| Pacer Advisors, Inc. | 53,675 | $39.3M | 0.10% | +43,989+454.2% | Added |
| Pembroke Management, LTD | 54,969 | $40.2M | 4.86% | +12,750+30.2% | Added |
| Canada Pension Plan Investment Board | 56,775 | $41.5M | 0.04% | −567−1.0% | Reduced |
| LPL Financial LLC | 59,255 | $43.3M | 0.01% | −52,867−47.2% | Reduced |
| Panagora Asset Management Inc | 62,383 | $45.6M | 0.21% | −32,096−34.0% | Reduced |
| CIBC Private Wealth Group, LLC | 63,640 | $46.5M | 0.08% | −3,214−4.8% | Reduced |
| Caisse de Depot Et Placement du Quebec | 65,946 | $48.2M | 0.10% | −33,245−33.5% | Reduced |
| Great West Life Assurance Co | 66,909 | $49.0M | 0.08% | +4,353+7.0% | Added |
| Grandeur Peak Global Advisors, LLC | 68,286 | $49.9M | 6.02% | −3,978−5.5% | Reduced |
| Nomura Asset Management Co Ltd | 68,772 | $50.3M | 0.14% | +52,272+316.8% | Added |
| Jupiter Asset Management Ltd | 70,356 | $51.5M | 0.43% | +44,355+170.6% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 70,683 | $51.7M | 0.13% | −2,941−4.0% | Reduced |
| California State Teachers Retirement System | 74,352 | $54.4M | 0.06% | +258+0.3% | Added |
| Adage Capital Partners GP, L.L.C. | 75,952 | $55.5M | 0.09% | −40,148−34.6% | Reduced |
| Susquehanna International Group, LLP | 76,073 | $55.6M | 0.09% | +11,231+17.3% | Added |
| National Pension Service | 77,151 | $56.4M | 0.05% | +567+0.7% | Added |
| Mirae Asset Global Investments Co., Ltd. | 77,763 | $56.9M | 0.20% | +2,989+4.0% | Added |
| Candriam Luxembourg S.C.A. | 80,346 | $58.8M | 0.34% | +3,695+4.8% | Added |
| Resona Asset Management Co.,Ltd. | 80,793 | $59.2M | 0.29% | −744−0.9% | Reduced |
| Wells Fargo & Company | 82,085 | $60.0M | 0.01% | +13,371+19.5% | Added |
| TD Asset Management Inc | 89,786 | $65.7M | 0.06% | +50,005+125.7% | Added |
| Victory Capital Management Inc | 91,857 | $67.2M | 0.04% | −325−0.4% | Reduced |
| California Public Employees Retirement System | 99,183 | $72.5M | 0.05% | +3,071+3.2% | Added |
| Baird Financial Group, Inc. | 104,333 | $76.3M | 0.13% | −4,199−3.9% | Reduced |
| AXA S.A. | 104,584 | $76.5M | 0.22% | +33,834+47.8% | Added |
| Stifel Financial Corp | 105,333 | $77.0M | 0.07% | +22,066+26.5% | Added |
| Robeco Schweiz AG | 106,743 | $78.1M | 1.80% | −9,303−8.0% | Reduced |
| Manufacturers Life Insurance Company, The | 107,038 | $78.3M | 0.07% | −16,393−13.3% | Reduced |
| STRS Ohio | 109,406 | $80.0M | 0.30% | −4,594−4.0% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 109,934 | $80.4M | 0.06% | +10,761+10.9% | Added |
| CI Private Wealth, LLC | 110,282 | $80.7M | 0.12% | +52,248+90.0% | Added |
| Neuberger Berman Group LLC | 110,389 | $80.7M | 0.06% | +7,663+7.5% | Added |
| Allianz Asset Management GmbH | 110,552 | $80.9M | 0.11% | +27,589+33.3% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 112,516 | $82.3M | 0.05% | −164−0.1% | Reduced |
| EULAV Asset Management | 116,276 | $85.0M | 2.00% | 00.0% | Unchanged |
| Rhumbline Advisers | 117,094 | $85.6M | 0.07% | +627+0.5% | Added |
| Rokos Capital Management LLP | 121,436 | $88.8M | 1.48% | −7,921−6.1% | Reduced |
| Congress Asset Management Co | 125,169 | $91.5M | 0.63% | +2,509+2.0% | Added |
| Amundi | 132,120 | $92.6M | 0.03% | +26,508+25.1% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 126,910 | $92.8M | 0.19% | +126,340+22,164.9% | Added |
| Janus Henderson Group PLC | 127,429 | $93.2M | 0.05% | +21,816+20.7% | Added |
| Natixis Advisors, L.P. | 132,589 | $97.0M | 0.15% | +351+0.3% | Added |
| Frontier Capital Management Co LLC | 132,843 | $97.2M | 0.90% | +4,121+3.2% | Added |
| Nuveen, LLC | 137,798 | $100.8M | 0.03% | −44,538−24.4% | Reduced |
| HSBC Holdings PLC | 142,566 | $104.4M | 0.07% | −16,256−10.2% | Reduced |
| Swiss National Bank | 144,900 | $106.0M | 0.06% | +7,300+5.3% | Added |
| TimesSquare Capital Management, LLC | 147,907 | $108.2M | 1.56% | +2,605+1.8% | Added |
| Dimensional Fund Advisors LP | 150,361 | $110.0M | 0.03% | −10,188−6.3% | Reduced |
| Deutsche Bank AG | 163,918 | $119.9M | 0.04% | −5,278−3.1% | Reduced |
| Pictet Asset Management Holding SA | 165,165 | $120.8M | 0.12% | −4,945−2.9% | Reduced |
| Principal Financial Group Inc | 169,845 | $124.2M | 0.07% | −4,797−2.7% | Reduced |
| Envestnet Asset Management Inc | 169,907 | $124.3M | 0.04% | +2,389+1.4% | Added |
| Allspring Global Investments Holdings, LLC | 166,842 | $124.6M | 0.21% | −16,315−8.9% | Reduced |
| DF Dent & Co Inc | 171,078 | $125.1M | 1.59% | +11,090+6.9% | Added |
| Impax Asset Management Group plc | 173,844 | $126.2M | 0.73% | −34,774−16.7% | Reduced |
| American Century Companies Inc | 181,926 | $133.1M | 0.07% | −21,248−10.5% | Reduced |
| DekaBank Deutsche Girozentrale | 190,443 | $138.0M | 0.25% | +398+0.2% | Added |
| Royal Bank of Canada | 190,402 | $139.3M | 0.03% | +44,147+30.2% | Added |
| Ensign Peak Advisors, Inc | 192,791 | $141.0M | 0.24% | −131,337−40.5% | Reduced |
| Macquarie Group Ltd | 194,494 | $142.2M | 0.17% | −30,381−13.5% | Reduced |
| BNP Paribas Arbitrage, SA | 195,134 | $142.7M | 0.11% | −88,963−31.3% | Reduced |
| SEI Investments Co | 199,487 | $145.9M | 0.17% | −957−0.5% | Reduced |
| Earnest Partners LLC | 203,136 | $148.6M | 0.67% | +170.0% | Added |
| Artisan Partners Limited Partnership | 207,647 | $151.9M | 0.23% | −134,207−39.3% | Reduced |
| Ameriprise Financial Inc | 218,977 | $160.2M | 0.04% | +41,706+23.5% | Added |
| Voya Investment Management LLC | 228,135 | $166.9M | 0.17% | +52,906+30.2% | Added |
| First Trust Advisors LP | 269,179 | $196.9M | 0.16% | +85,777+46.8% | Added |
| Vaughan Nelson Investment Management, L.P. | 272,047 | $199.0M | 1.86% | +16,019+6.3% | Added |
| Citigroup Inc | 278,929 | $204.0M | 0.14% | +5,948+2.2% | Added |
| Raymond James Financial Inc | 286,448 | $209.5M | 0.07% | +40,787+16.6% | Added |
| Alliancebernstein L.P. | 314,136 | $229.8M | 0.07% | −13,282−4.1% | Reduced |
| UBS Asset Management Americas Inc | 323,293 | $236.5M | 0.05% | +29,202+9.9% | Added |
| Bank of New York Mellon Corp | 336,550 | $246.1M | 0.05% | −18,762−5.3% | Reduced |
| Charles Schwab Investment Management Inc | 343,961 | $251.6M | 0.04% | +7,975+2.4% | Added |
| Legal & General Group Plc | 350,574 | $256.4M | 0.06% | +13,841+4.1% | Added |
| Kayne Anderson Rudnick Investment Management LLC | 363,958 | $266.2M | 0.64% | +2,834+0.8% | Added |
| Barclays PLC | 438,599 | $320.8M | 0.13% | +69,896+19.0% | Added |
| Northern Trust Corp | 482,057 | $352.6M | 0.05% | −16,459−3.3% | Reduced |
| Massachusetts Financial Services Co | 485,388 | $355.0M | 0.11% | +27,837+6.1% | Added |
| UBS Group AG | 502,536 | $367.5M | 0.08% | +145,246+40.7% | Added |
| Goldman Sachs Group Inc | 512,448 | $374.8M | 0.06% | +213,934+71.7% | Added |
| FIL Ltd | 523,073 | $382.6M | 0.33% | +412,486+373.0% | Added |
| Rafferty Asset Management, LLC | 529,124 | $387.0M | 1.28% | +140,269+36.1% | Added |
| Morgan Stanley | 565,019 | $413.2M | 0.03% | +24,388+4.5% | Added |
| Norges Bank | 598,887 | $438.0M | 0.05% | +4,569+0.8% | Added |
| Bank of America Corp | 692,747 | $506.7M | 0.04% | +105,721+18.0% | Added |
| Wellington Management Group LLP | 703,151 | $514.3M | 0.09% | −58,755−7.7% | Reduced |
| JPMorgan Chase & Co | 856,725 | $626.6M | 0.04% | +227,159+36.1% | Added |
| Brown Advisory Inc | 864,309 | $632.2M | 0.83% | −69,316−7.4% | Reduced |
| T. Rowe Price Investment Management, Inc. | 927,806 | $678.6M | 0.43% | +613,357+195.1% | Added |
| Van Eck Associates Corp | 952,060 | $696.3M | 0.79% | −94,198−9.0% | Reduced |
| Franklin Resources Inc | 1,088,297 | $796.0M | 0.21% | −255,533−19.0% | Reduced |