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 2026
Institutional positions in Monolithic Power Systems, Inc. as of Jun 30, 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
- 1,250
- +142 vs. Q1 2026
- Shares held
- 47.6M
- +386.8K (+0.8%) vs. Q1 2026
- Total value
- $65.6B
- +$14.1B (+27.4%) vs. Q1 2026
- New holders
- 220
- 419 more added
- Sold out
- 78
- 464 more reduced
16 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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 2026
Shares, value and share of portfolio for each institution holding Monolithic Power Systems, Inc.; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Pinnacle Financial Partners, Inc. | 30,314 | $41.9M | 0.29% | −1,307−4.1% | Reduced |
| Schroder Investment Management Group | 32,832 | $43.0M | 0.03% | +983+3.1% | Added |
| Nissay Asset Management Corp | 31,383 | $43.4M | 0.18% | +5,608+21.8% | Added |
| Nomura Asset Management Co Ltd | 31,669 | $43.8M | 0.09% | −115,207−78.4% | Reduced |
| Handelsbanken Fonder AB | 32,416 | $44.8M | 0.13% | +983+3.1% | Added |
| Geneva Capital Management LLC | 32,563 | $45.0M | 1.03% | −7,188−18.1% | Reduced |
| EULAV Asset Management | 32,677 | $45.2M | 1.44% | −26,000−44.3% | Reduced |
| Frontier Capital Management Co LLC | 32,723 | $45.2M | 0.42% | −46,976−58.9% | Reduced |
| Bank Julius Baer & Co. Ltd, Zurich | 33,321 | $45.5M | 0.12% | +25,035+302.1% | Added |
| PFA Pension, Forsikringsaktieselskab | 33,715 | $46.6M | 0.12% | +2,423+7.7% | Added |
| NewEdge Wealth, LLC | 34,264 | $47.4M | 0.48% | +537+1.6% | Added |
| Mariner, LLC | 34,399 | $47.5M | 0.05% | −6,764−16.4% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 34,697 | $47.7M | 0.06% | −1,742−4.8% | Reduced |
| CBOE Vest Financial, LLC | 35,101 | $48.5M | 0.51% | −17,222−32.9% | Reduced |
| Factory Mutual Insurance Co | 35,457 | $49.0M | 0.46% | −4,515−11.3% | Reduced |
| Empowered Funds, LLC | 35,700 | $49.4M | 0.26% | +1,607+4.7% | Added |
| LMR Partners LLP | 35,757 | $49.4M | 0.36% | +35,757 | New |
| Man Group plc | 37,110 | $51.3M | 0.09% | +30,602+470.2% | Added |
| NEOS Investment Management LLC | 37,133 | $51.3M | 0.19% | +4,391+13.4% | Added |
| New York State Teachers Retirement System | 37,404 | $51.7M | 0.10% | −1,999−5.1% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 37,766 | $52.2M | 0.10% | +35,750+1,773.3% | Added |
| Whittier Trust Co | 41,902 | $56.4M | 0.55% | −108−0.3% | Reduced |
| Aviva PLC | 41,119 | $56.8M | 0.08% | +248+0.6% | Added |
| State Board of Administration of Florida Retirement System | 41,540 | $57.4M | 0.10% | −94−0.2% | Reduced |
| Grandeur Peak Global Advisors, LLC | 41,727 | $57.7M | 13.35% | −9,768−19.0% | Reduced |
| Standard Life Aberdeen plc | 41,854 | $57.9M | 0.08% | +2,432+6.2% | Added |
| CI Private Wealth, LLC | 44,086 | $60.9M | 0.08% | +28,402+181.1% | Added |
| Quadrature Capital Ltd | 44,969 | $62.2M | 0.53% | +44,969 | New |
| Bank of Montreal | 46,739 | $64.6M | 0.02% | +269+0.6% | Added |
| Robeco Institutional Asset Management B.V. | 47,124 | $65.1M | 0.08% | +33,251+239.7% | Added |
| Worldquant Millennium Advisors LLC | 47,141 | $65.2M | 0.22% | +47,141 | New |
| Resona Asset Management Co.,Ltd. | 49,148 | $66.9M | 0.31% | −8,559−14.8% | Reduced |
| Nomura Holdings Inc | 49,616 | $68.6M | 0.29% | +46,667+1,582.5% | Added |
| Manufacturers Life Insurance Company, The | 49,887 | $69.0M | 0.05% | +233+0.5% | Added |
| New York State Common Retirement Fund | 50,169 | $69.4M | 0.09% | +23,463+87.9% | Added |
| Caisse de Depot Et Placement du Quebec | 50,232 | $69.4M | 0.10% | −34,927−41.0% | Reduced |
| Great West Life Assurance Co | 51,304 | $70.7M | 0.11% | −7,417−12.6% | Reduced |
| Toroso Investments, LLC | 51,894 | $71.7M | 0.17% | +16,510+46.7% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 52,981 | $73.2M | 0.14% | −11,861−18.3% | Reduced |
| Squarepoint Ops LLC | 53,024 | $73.3M | 0.14% | +20,604+63.6% | Added |
| National Bank of Canada | 53,719 | $74.3M | 0.07% | −9,916−15.6% | Reduced |
| STRS Ohio | 54,281 | $75.0M | 0.28% | −15,526−22.2% | Reduced |
| Candriam Luxembourg S.C.A. | 54,905 | $75.8M | 0.34% | −14,039−20.4% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 56,653 | $78.2M | 0.12% | +10,132+21.8% | Added |
| Eventide Asset Management, LLC | 57,790 | $79.7M | 1.07% | −364−0.6% | Reduced |
| Jones Financial Companies LLLP | 61,012 | $80.1M | 0.03% | +7,064+13.1% | Added |
| Bamco Inc | 58,604 | $81.0M | 0.12% | −4,390−7.0% | Reduced |
| Russell Investments Group, Ltd. | 61,251 | $84.2M | 0.07% | +7,177+13.3% | Added |
| CIBC Bancorp USA Inc. | 61,206 | $84.6M | 0.10% | −7,613−11.1% | Reduced |
| Renaissance Technologies LLC | 63,066 | $87.2M | 0.12% | +63,066 | New |
| Impax Asset Management Group plc | 63,427 | $87.7M | 0.57% | −25,029−28.3% | Reduced |
| Citadel Advisors LLC | 63,487 | $87.8M | 0.05% | +49,975+369.9% | Added |
| National Pension Service | 63,529 | $87.8M | 0.06% | −4,186−6.2% | Reduced |
| Qube Research & Technologies Ltd | 64,548 | $89.2M | 0.10% | +64,548 | New |
| ProShare Advisors LLC | 64,600 | $89.3M | 0.13% | −16,841−20.7% | Reduced |
| LPL Financial LLC | 65,267 | $90.2M | 0.02% | −2,677−3.9% | Reduced |
| Stifel Financial Corp | 67,103 | $92.8M | 0.08% | −12,231−15.4% | Reduced |
| California State Teachers Retirement System | 69,420 | $96.0M | 0.09% | −2,943−4.1% | Reduced |
| Ensign Peak Advisors, Inc | 71,154 | $98.4M | 0.16% | −6,942−8.9% | Reduced |
| Wellington Management Group LLP | 72,001 | $99.5M | 0.02% | −178,510−71.3% | Reduced |
| DF Dent & Co Inc | 72,954 | $100.8M | 1.91% | −15,595−17.6% | Reduced |
| Quantinno Capital Management LP | 75,694 | $104.6M | 0.13% | +2,923+4.0% | Added |
| Liontrust Investment Partners LLP | 75,786 | $104.8M | 1.54% | +4,520+6.3% | Added |
| Healthcare of Ontario Pension Plan Trust Fund | 76,360 | $105.6M | 0.15% | −59,578−43.8% | Reduced |
| HRT Financial LP | 77,349 | $106.9M | 0.20% | +77,349 | New |
| Capitolis Liquid Global Markets LLC | 78,432 | $108.4M | 0.47% | +74,041+1,686.2% | Added |
| Zevenbergen Capital Investments LLC | 78,604 | $108.7M | 2.48% | −3,307−4.0% | Reduced |
| Congress Asset Management Co | 80,425 | $111.2M | 0.69% | −2,918−3.5% | Reduced |
| Allspring Global Investments Holdings, LLC | 84,341 | $112.3M | 0.17% | −34,465−29.0% | Reduced |
| Baird Financial Group, Inc. | 81,895 | $113.2M | 0.16% | +7,624+10.3% | Added |
| D1 Capital Partners L.P.SuperinvestorD1 Capital Partners | 85,103 | $117.6M | 0.34% | +85,103 | New |
| Thrivent Financial for Lutherans | 90,064 | $124.5M | 0.21% | −6,052−6.3% | Reduced |
| Vanguard Asset Management, Ltd | 92,594 | $128.0M | 0.09% | +10,757+13.1% | Added |
| Rhumbline Advisers | 94,367 | $130.4M | 0.10% | −7,743−7.6% | Reduced |
| Lord, Abbett & Co. LLC | 94,447 | $130.6M | 0.37% | −27,400−22.5% | Reduced |
| Victory Capital Management Inc | 94,482 | $130.6M | 0.07% | −17,510−15.6% | Reduced |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 95,039 | $131.4M | 0.13% | −34,964−26.9% | Reduced |
| Robeco Schweiz AG | 96,033 | $132.8M | 2.13% | +1,040+1.1% | Added |
| Adage Capital Partners GP, L.L.C. | 96,352 | $133.2M | 0.19% | +22,700+30.8% | Added |
| Mirae Asset Global Investments Co., Ltd. | 97,618 | $134.9M | 0.26% | +14,355+17.2% | Added |
| Pictet Asset Management Holding SA | 100,736 | $139.2M | 0.13% | −20,138−16.7% | Reduced |
| Nomura Asset Management International Inc. | 103,548 | $143.1M | 0.21% | −44,419−30.0% | Reduced |
| Natixis Advisors, L.P. | 105,784 | $146.2M | 0.16% | +9,937+10.4% | Added |
| Vanguard Global Advisers, LLC | 106,109 | $146.7M | 0.07% | −493−0.5% | Reduced |
| Envestnet Asset Management Inc | 108,573 | $150.1M | 0.04% | −17,282−13.7% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 110,819 | $153.2M | 0.09% | −3,645−3.2% | Reduced |
| TimesSquare Capital Management, LLC | 110,824 | $153.2M | 2.25% | −28,016−20.2% | Reduced |
| Allianz Asset Management GmbH | 116,281 | $160.7M | 0.15% | +19,807+20.5% | Added |
| Susquehanna International Group, LLP | 123,776 | $171.1M | 0.15% | +93,813+313.1% | Added |
| Nuveen, LLC | 129,292 | $178.7M | 0.04% | −26,562−17.0% | Reduced |
| Ameriprise Financial Inc | 129,720 | $179.3M | 0.04% | +10,297+8.6% | Added |
| Artisan Partners Limited Partnership | 130,154 | $179.9M | 0.29% | −20,719−13.7% | Reduced |
| Wells Fargo & Company | 131,302 | $181.5M | 0.03% | +29,604+29.1% | Added |
| Swiss National Bank | 131,610 | $181.9M | 0.10% | −8,930−6.4% | Reduced |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 132,064 | $182.6M | 0.10% | +482+0.4% | Added |
| Millennium Management LLC | 136,835 | $189.2M | 0.13% | +136,835 | New |
| DekaBank Deutsche Girozentrale | 190,443 | $190.2M | 0.32% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 177,107 | $193.6M | 0.07% | +52,460+42.1% | Added |
| Federated Hermes, Inc. | 144,949 | $200.4M | 0.29% | +96,385+198.5% | Added |
| Vaughan Nelson Investment Management, L.P. | 144,974 | $200.4M | 1.77% | +5,622+4.0% | Added |