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 |
|---|---|---|---|---|---|
| Mariner, LLC | 2,676 | $2.43M | 0.00% | −8,185−75.4% | Reduced |
| Woodline Partners LP | 2,640 | $2.39M | 0.01% | +2,640 | New |
| Ketron Financial | 2,616 | $2.37M | 0.79% | +2,616 | New |
| Sunpointe, LLC | 2,587 | $2.35M | 0.78% | −75−2.8% | Reduced |
| Westerkirk Capital Inc. | 2,544 | $2.31M | 0.22% | +936+58.2% | Added |
| United Capital Financial Advisers, LLC | 2,491 | $2.26M | 0.01% | +266+12.0% | Added |
| Osmosis Investment Management UK Ltd | 2,473 | $2.24M | 0.06% | +2,473 | New |
| Sirios Capital Management L P | 2,464 | $2.23M | 0.28% | −181−6.8% | Reduced |
| Metis Global Partners, LLC | 2,448 | $2.22M | 0.05% | +327+15.4% | Added |
| B. Metzler seel. Sohn & Co. AG | 2,448 | $2.22M | 0.02% | +770+45.9% | Added |
| Gulf International Bank (UK) Ltd | 2,446 | $2.22M | 0.07% | −3−0.1% | Reduced |
| La Banque Postale Asset Management SA | 2,423 | $2.20M | 0.03% | −352−12.7% | Reduced |
| Jones Financial Companies LLLP | 2,414 | $2.19M | 0.00% | +183+8.2% | Added |
| RFG Advisory, LLC | 2,374 | $2.15M | 0.04% | −416−14.9% | Reduced |
| Maryland State Retirement & Pension System | 2,308 | $2.09M | 0.04% | 00.0% | Unchanged |
| Northwestern Mutual Wealth Management Co | 2,305 | $2.09M | 0.00% | +111+5.1% | Added |
| Valley National Advisers Inc | 2,301 | $2.08M | 0.29% | +6+0.3% | Added |
| BLI - Banque de Luxembourg Investments | 2,200 | $2.03M | 0.06% | +2,200 | New |
| CAPROCK Group, Inc. | 2,237 | $2.03M | 0.04% | +224+11.1% | Added |
| Abn Amro Investment Solutions | 2,231 | $2.02M | 0.03% | +1,720+336.6% | Added |
| Prudential PLC | 2,217 | $2.01M | 0.02% | −784−26.1% | Reduced |
| New Mexico Educational Retirement Board | 2,200 | $1.99M | 0.06% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 2,195 | $1.99M | 0.06% | +1,732+374.1% | Added |
| Bouvel Investment Partners, LLC | 2,146 | $1.95M | 0.56% | +590+37.9% | Added |
| Sherman Porfolios, LLC | 2,145 | $1.94M | 0.13% | +2,145 | New |
| Callan Family Office, LLC | 2,112 | $1.91M | 0.04% | +934+79.3% | Added |
| Change Path, LLC | 2,072 | $1.88M | 0.05% | −168−7.5% | Reduced |
| AG2R la Mondiale Gestion D'Actifs | 2,059 | $1.87M | 0.08% | +84+4.3% | Added |
| Mirova | 2,046 | $1.85M | 0.27% | −1,009−33.0% | Reduced |
| XTX Topco Ltd | 2,025 | $1.84M | 0.05% | +2,025 | New |
| Omers Administration Corp | 2,015 | $1.83M | 0.01% | −1,000−33.2% | Reduced |
| Lifestyle Asset Management, Inc. | 1,997 | $1.81M | 0.59% | +80+4.2% | Added |
| Diversify Advisory Services, LLC | 1,741 | $1.80M | 0.06% | +212+13.9% | Added |
| GAMMA Investing LLC | 1,969 | $1.78M | 0.09% | +100+5.4% | Added |
| Lido Advisors, LLC | 1,939 | $1.78M | 0.01% | +6+0.3% | Added |
| CWM, LLC | 1,960 | $1.78M | 0.00% | +167+9.3% | Added |
| Cim, LLC | 1,939 | $1.76M | 0.23% | +29+1.5% | Added |
| Kestra Advisory Services, LLC | 1,929 | $1.75M | 0.01% | −31−1.6% | Reduced |
| Confluence Wealth Services, Inc. | 1,915 | $1.74M | 0.07% | −182−8.7% | Reduced |
| Banco Bilbao Vizcaya Argentaria, S.A. | 1,904 | $1.73M | 0.01% | +199+11.7% | Added |
| Worthington Financial Partners, LLC | 1,902 | $1.72M | 1.53% | +1,902 | New |
| Tokio Marine Asset Management Co Ltd | 1,897 | $1.72M | 0.06% | +214+12.7% | Added |
| Oppenheimer Asset Management Inc. | 1,884 | $1.71M | 0.02% | −152−7.5% | Reduced |
| Two Sigma Securities, LLC | 1,884 | $1.71M | 0.23% | +1,884 | New |
| Catalyst Capital Advisors LLC | 1,800 | $1.63M | 0.03% | +1,800 | New |
| Empirical Asset Management, LLC | 1,777 | $1.61M | 0.45% | +85+5.0% | Added |
| Banque Cantonale Vaudoise | 1,772 | $1.61M | 0.06% | −1,202−40.4% | Reduced |
| Keybank National Association | 1,771 | $1.61M | 0.01% | +22+1.3% | Added |
| Virtus Investment Advisers, Inc. | 1,755 | $1.59M | 0.43% | +1,755 | New |
| Regions Financial Corp | 1,745 | $1.58M | 0.01% | −399−18.6% | Reduced |
| Whalen Wealth Management Inc. | 1,731 | $1.57M | 0.84% | +951+121.9% | Added |
| Crossmark Global Holdings, Inc. | 1,723 | $1.56M | 0.02% | −2,575−59.9% | Reduced |
| Everence Capital Management Inc | 1,690 | $1.53M | 0.09% | 00.0% | Unchanged |
| Icon Wealth Advisors, LLC | 1,671 | $1.51M | 0.10% | +365+27.9% | Added |
| DSG Capital Advisors, LLC | 1,497 | $1.51M | 0.23% | −252−14.4% | Reduced |
| GLOBALT Investments LLC | 1,665 | $1.51M | 0.06% | −90−5.1% | Reduced |
| Groupama Asset Managment | 1,658 | $1.50M | 0.02% | −58−3.4% | Reduced |
| E. Ohman J:or Asset Management AB | 1,647 | $1.49M | 0.03% | −403−19.7% | Reduced |
| Dai-Ichi Life Insurance Company, Ltd | 1,625 | $1.47M | 0.04% | 00.0% | Unchanged |
| Optimize Financial Inc | 1,615 | $1.46M | 0.74% | +20+1.3% | Added |
| North Dakota State Investment Board | 1,586 | $1.44M | 0.05% | +1,586 | New |
| Pinebridge Investments LLC | 1,578 | $1.43M | 0.01% | +1,578 | New |
| Jacksonville Wealth Management, LLC | 1,574 | $1.43M | 1.01% | −6−0.4% | Reduced |
| AE Wealth Management LLC | 1,567 | $1.42M | 0.01% | +350+28.8% | Added |
| Horizon Investments, LLC | 1,566 | $1.42M | 0.02% | −140−8.2% | Reduced |
| Assenagon Asset Management S.A. | 1,562 | $1.42M | 0.00% | −44−2.7% | Reduced |
| RDA Financial Network | 1,553 | $1.41M | 0.34% | −537−25.7% | Reduced |
| Squarepoint Ops LLC | 1,550 | $1.40M | 0.00% | +273+21.4% | Added |
| Northwestern Mutual Investment Management Company, LLC | 1,531 | $1.39M | 0.02% | +5+0.3% | Added |
| Bridgeway Capital Management, LLC | 1,530 | $1.39M | 0.03% | +1,530 | New |
| PKO Investment Management Joint-Stock Co | 1,500 | $1.36M | 0.11% | +1,500 | New |
| Laird Norton Trust Company, LLC | 1,489 | $1.35M | 0.03% | +1,489 | New |
| Grantham, Mayo, Van Otterloo & Co. LLC | 1,487 | $1.35M | 0.00% | +79+5.6% | Added |
| Camden Capital, LLC | 1,474 | $1.34M | 0.08% | +1,157+365.0% | Added |
| FourThought Financial Partners, LLC | 1,467 | $1.33M | 0.11% | −12−0.8% | Reduced |
| Norden Group LLC | 1,466 | $1.33M | 0.13% | −119−7.5% | Reduced |
| Exchange Traded Concepts, LLC | 1,462 | $1.33M | 0.01% | −166−10.2% | Reduced |
| Kovack Advisors, Inc. | 1,453 | $1.32M | 0.06% | +1,453 | New |
| Warren Averett Asset Management, LLC | 1,452 | $1.32M | 0.01% | +284+24.3% | Added |
| Winton Group Ltd | 1,448 | $1.31M | 0.05% | −127−8.1% | Reduced |
| Keating Financial Advisory Services, Inc. | 1,445 | $1.31M | 0.18% | +1,445 | New |
| Forty-three Eighteen Advisors, LLC | 1,433 | $1.30M | 1.01% | +1,433 | New |
| J. Safra Sarasin Holding AG | 1,422 | $1.29M | 0.02% | +195+15.9% | Added |
| Independent Financial Group, LLC | 1,421 | $1.29M | 0.03% | +510+56.0% | Added |
| Quadrant Capital Group LLC | 1,418 | $1.29M | 0.04% | +15+1.1% | Added |
| Mitsubishi UFJ Morgan Stanley Securities Co., Ltd. | 1,416 | $1.28M | 2.02% | +1,416 | New |
| Stance Capital LLC | 1,416 | $1.28M | 0.47% | +1,416 | New |
| Westover Capital Advisors, LLC | 1,405 | $1.27M | 0.23% | −14−1.0% | Reduced |
| SRS Capital Advisors, Inc. | 1,396 | $1.27M | 0.04% | −1,255−47.3% | Reduced |
| We Are One Seven, LLC | 1,393 | $1.26M | 0.03% | +551+65.4% | Added |
| China Universal Asset Management Co., Ltd. | 1,356 | $1.23M | 0.09% | +1,356 | New |
| Pier 88 Investment Partners LLC | 1,350 | $1.22M | 0.27% | −4,430−76.6% | Reduced |
| Vestcor Inc | 1,348 | $1.22M | 0.03% | +415+44.5% | Added |
| D. E. Shaw & Co., Inc. | 1,348 | $1.22M | 0.00% | −106−7.3% | Reduced |
| Ducere Wealth Management LLC | 1,345 | $1.22M | 0.47% | +1,345 | New |
| Liberty Capital Management, Inc. | 1,343 | $1.22M | 0.23% | +161+13.6% | Added |
| National Wealth Management Group, LLC | 1,336 | $1.21M | 0.42% | +92+7.4% | Added |
| United Asset Strategies, Inc. | 1,329 | $1.20M | 0.09% | +28+2.2% | Added |
| Securian Asset Management, Inc | 1,329 | $1.20M | 0.05% | −982−42.5% | Reduced |
| Moody National Bank Trust Division | 1,325 | $1.20M | 0.12% | −711−34.9% | Reduced |