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 |
|---|---|---|---|---|---|
| Vanguard Group Inc | 6,034,394 | $5.47B | 0.08% | −39,639−0.7% | Reduced |
| BlackRock, Inc. | 5,962,391 | $5.40B | 0.09% | +235,617+4.1% | Added |
| FMR LLC | 3,977,008 | $3.60B | 0.18% | +412,212+11.6% | Added |
| Invesco Ltd. | 2,510,980 | $2.28B | 0.21% | +1,371,847+120.4% | Added |
| State Street Corp | 2,180,419 | $1.98B | 0.07% | +45,715+2.1% | Added |
| Price T Rowe Associates Inc | 1,691,394 | $1.53B | 0.17% | +117,596+7.5% | Added |
| Geode Capital Management, LLC | 1,382,280 | $1.25B | 0.08% | +44,583+3.3% | Added |
| Franklin Resources Inc | 1,049,409 | $951.1M | 0.23% | −2,644−0.3% | Reduced |
| Norges Bank | 726,705 | $658.7M | 0.07% | +726,705 | New |
| T. Rowe Price Investment Management, Inc. | 724,494 | $656.7M | 0.41% | −26,194−3.5% | Reduced |
| First Trust Advisors LP | 701,454 | $635.8M | 0.46% | +253,653+56.6% | Added |
| Morgan Stanley | 649,070 | $588.3M | 0.04% | +90,399+16.2% | Added |
| Barclays PLC | 604,802 | $548.2M | 0.22% | +242,740+67.0% | Added |
| Goldman Sachs Group Inc | 593,742 | $538.1M | 0.08% | +159,417+36.7% | Added |
| Massachusetts Financial Services Co | 570,719 | $517.3M | 0.17% | +14,132+2.5% | Added |
| Bank of America Corp | 549,575 | $498.1M | 0.04% | −173,241−24.0% | Reduced |
| JPMorgan Chase & Co | 512,273 | $464.3M | 0.03% | −350,955−40.7% | Reduced |
| Van Eck Associates Corp | 502,312 | $455.3M | 0.38% | −230,136−31.4% | Reduced |
| Brown Advisory Inc | 500,755 | $453.9M | 0.63% | −229,364−31.4% | Reduced |
| Northern Trust Corp | 483,700 | $438.4M | 0.06% | −2,131−0.4% | Reduced |
| UBS Group AG | 438,985 | $397.9M | 0.08% | −89,334−16.9% | Reduced |
| Rafferty Asset Management, LLC | 396,464 | $359.3M | 1.24% | +17,146+4.5% | Added |
| Wellington Management Group LLP | 384,770 | $348.7M | 0.06% | −68,168−15.1% | Reduced |
| Charles Schwab Investment Management Inc | 365,384 | $331.2M | 0.05% | +7,474+2.1% | Added |
| Legal & General Group Plc | 356,639 | $323.2M | 0.07% | −1,790−0.5% | Reduced |
| Voya Investment Management LLC | 339,732 | $307.9M | 0.30% | −19,580−5.4% | Reduced |
| UBS Asset Management Americas Inc | 318,797 | $288.9M | 0.06% | +2,875+0.9% | Added |
| FIL Ltd | 316,089 | $286.5M | 0.21% | −181,244−36.4% | Reduced |
| Bank of New York Mellon Corp | 295,119 | $267.5M | 0.05% | −8,972−3.0% | Reduced |
| Kayne Anderson Rudnick Investment Management LLC | 294,043 | $266.5M | 0.72% | −61,320−17.3% | Reduced |
| SG Americas Securities, LLC | 262,231 | $237.7M | 0.31% | +261,893+77,483.1% | Added |
| Vaughan Nelson Investment Management, L.P. | 257,644 | $233.5M | 2.28% | −14,885−5.5% | Reduced |
| BNP Paribas Arbitrage, SA | 247,127 | $224.0M | 0.14% | +78,131+46.2% | Added |
| Citigroup Inc | 245,479 | $222.5M | 0.15% | +67,296+37.8% | Added |
| Raymond James Financial Inc | 211,484 | $193.7M | 0.06% | −55,728−20.9% | Reduced |
| American Century Companies Inc | 203,564 | $184.5M | 0.09% | −11,386−5.3% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 202,864 | $183.9M | 0.31% | +85,968+73.5% | Added |
| HSBC Holdings PLC | 200,626 | $182.3M | 0.10% | +62,714+45.5% | Added |
| Neuberger Berman Group LLC | 181,706 | $164.7M | 0.12% | +13,900+8.3% | Added |
| Royal Bank of Canada | 176,580 | $160.0M | 0.03% | −30,037−14.5% | Reduced |
| Deutsche Bank AG | 174,325 | $158.0M | 0.05% | +571+0.3% | Added |
| Principal Financial Group Inc | 167,265 | $151.6M | 0.08% | −2,447−1.4% | Reduced |
| SEI Investments Co | 166,693 | $151.1M | 0.15% | −32,993−16.5% | Reduced |
| Nomura Asset Management International Inc. | 165,234 | $149.8M | 0.23% | +165,234 | New |
| Nuveen, LLC | 161,249 | $146.1M | 0.04% | +27,103+20.2% | Added |
| Allspring Global Investments Holdings, LLC | 153,328 | $143.6M | 0.23% | −17,893−10.5% | Reduced |
| Earnest Partners LLC | 156,643 | $142.0M | 0.61% | −49,136−23.9% | Reduced |
| DekaBank Deutsche Girozentrale | 190,443 | $141.8M | 0.27% | 00.0% | Unchanged |
| Artisan Partners Limited Partnership | 153,862 | $139.5M | 0.21% | −38,887−20.2% | Reduced |
| Pictet Asset Management Holding SA | 153,003 | $138.7M | 0.13% | −4,788−3.0% | Reduced |
| Dimensional Fund Advisors LP | 151,038 | $136.9M | 0.03% | −5,539−3.5% | Reduced |
| Allianz Asset Management GmbH | 145,633 | $132.0M | 0.15% | +65,356+81.4% | Added |
| TimesSquare Capital Management, LLC | 140,279 | $127.1M | 1.92% | −732−0.5% | Reduced |
| Caisse de Depot Et Placement du Quebec | 137,217 | $124.4M | 0.21% | +70,463+105.6% | Added |
| Alliancebernstein L.P. | 134,631 | $122.0M | 0.04% | −146,072−52.0% | Reduced |
| Ameriprise Financial Inc | 133,637 | $121.1M | 0.03% | −26,567−16.6% | Reduced |
| Swiss National Bank | 131,260 | $119.0M | 0.07% | −6,840−5.0% | Reduced |
| Amundi | 129,471 | $117.4M | 0.03% | −8,164−5.9% | Reduced |
| Natixis Advisors, L.P. | 128,155 | $116.2M | 0.16% | −3,104−2.4% | Reduced |
| DF Dent & Co Inc | 127,277 | $115.4M | 1.66% | −22,453−15.0% | Reduced |
| National Bank of Canada | 125,474 | $113.7M | 0.12% | +101,300+419.0% | Added |
| Envestnet Asset Management Inc | 124,634 | $113.0M | 0.03% | −35,106−22.0% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 118,703 | $111.1M | 0.08% | +6,371+5.7% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 119,015 | $107.9M | 0.06% | +6,511+5.8% | Added |
| Nomura Asset Management Co Ltd | 117,019 | $106.1M | 0.27% | −5,382−4.4% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 115,721 | $104.9M | 0.12% | +109,684+1,816.9% | Added |
| Victory Capital Management Inc | 114,968 | $104.2M | 0.06% | +26,762+30.3% | Added |
| Thrivent Financial for Lutherans | 111,749 | $101.3M | 0.18% | +96,469+631.3% | Added |
| Impax Asset Management Group plc | 106,238 | $96.3M | 0.60% | −25,163−19.1% | Reduced |
| Rhumbline Advisers | 104,246 | $94.5M | 0.08% | −3,182−3.0% | Reduced |
| ProShare Advisors LLC | 99,461 | $90.1M | 0.16% | +74,082+291.9% | Added |
| Baird Financial Group, Inc. | 97,610 | $88.5M | 0.14% | −10,775−9.9% | Reduced |
| Robeco Schweiz AG | 95,018 | $86.1M | 1.93% | −8,219−8.0% | Reduced |
| Candriam Luxembourg S.C.A. | 94,447 | $85.6M | 0.43% | +8,540+9.9% | Added |
| Congress Asset Management Co | 90,686 | $82.2M | 0.58% | −17,585−16.2% | Reduced |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 90,070 | $81.6M | 0.18% | +24,657+37.7% | Added |
| Mirae Asset Global Investments Co., Ltd. | 86,636 | $78.5M | 0.22% | +28,282+48.5% | Added |
| California Public Employees Retirement System | 84,836 | $76.9M | 0.04% | −394−0.5% | Reduced |
| Frontier Capital Management Co LLC | 84,118 | $76.2M | 0.81% | −79,798−48.7% | Reduced |
| Ensign Peak Advisors, Inc | 81,857 | $74.2M | 0.13% | −81,382−49.9% | Reduced |
| Zevenbergen Capital Investments LLC | 81,378 | $73.8M | 1.64% | +6,710+9.0% | Added |
| Stifel Financial Corp | 80,712 | $73.2M | 0.07% | −18,610−18.7% | Reduced |
| Adage Capital Partners GP, L.L.C. | 77,852 | $70.6M | 0.11% | −5,300−6.4% | Reduced |
| STRS Ohio | 77,809 | $70.5M | 0.26% | +20.0% | Added |
| EULAV Asset Management | 77,682 | $70.4M | 1.88% | −30,595−28.3% | Reduced |
| Wells Fargo & Company | 77,569 | $70.3M | 0.01% | +5,692+7.9% | Added |
| MUFG Securities EMEA plc | 74,966 | $67.9M | 0.79% | +74,049+8,075.1% | Added |
| National Pension Service | 74,527 | $67.5M | 0.05% | −4,487−5.7% | Reduced |
| TD Asset Management Inc | 74,300 | $67.3M | 0.05% | −328−0.4% | Reduced |
| California State Teachers Retirement System | 74,069 | $67.1M | 0.07% | −679−0.9% | Reduced |
| Grandeur Peak Global Advisors, LLC | 72,468 | $65.7M | 8.84% | +7,293+11.2% | Added |
| Analog Century Management LP | 70,723 | $64.1M | 3.15% | −6,868−8.9% | Reduced |
| Canada Pension Plan Investment Board | 69,732 | $63.2M | 0.04% | +47,080+207.8% | Added |
| Eventide Asset Management, LLC | 68,373 | $62.0M | 0.97% | +27,131+65.8% | Added |
| Resona Asset Management Co.,Ltd. | 66,386 | $60.6M | 0.29% | −4,343−6.1% | Reduced |
| CBOE Vest Financial, LLC | 66,613 | $60.4M | 0.77% | +17,336+35.2% | Added |
| Bamco Inc | 65,227 | $59.1M | 0.16% | +17,031+35.3% | Added |
| LPL Financial LLC | 64,085 | $58.1M | 0.02% | +6,002+10.3% | Added |
| Jennison Associates LLC | 61,828 | $56.0M | 0.03% | +7,873+14.6% | Added |
| Quantinno Capital Management LP | 59,564 | $54.0M | 0.11% | +4,950+9.1% | Added |