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 9 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, Q3 2021
Institutional positions in Monolithic Power Systems, Inc. as of Sep 30, 2021. 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
- 579
- +51 vs. Q2 2021
- Shares held
- 43.5M
- +487.7K (+1.1%) vs. Q2 2021
- Total value
- $21.1B
- +$5.02B (+31.3%) vs. Q2 2021
- New holders
- 92
- 183 more added
- Sold out
- 41
- 222 more reduced
5 institutions that held it in Q2 2021 haven't filed for Q3 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2021: 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, Q3 2021
Shares, value and share of portfolio for each institution holding Monolithic Power Systems, Inc.; share changes are against Q2 2021.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| National Pension Service | 77,293 | $37.5M | 0.07% | +4,369+6.0% | Added |
| Eventide Asset Management, LLC | 77,459 | $37.5M | 0.50% | 00.0% | Unchanged |
| Renaissance Technologies LLC | 80,307 | $38.9M | 0.05% | −22,479−21.9% | Reduced |
| Loomis Sayles & Co L P | 82,545 | $40.0M | 0.05% | −24,703−23.0% | Reduced |
| Rhumbline Advisers | 89,230 | $43.2M | 0.06% | +7,431+9.1% | Added |
| Grandeur Peak Global Advisors, LLC | 89,420 | $43.3M | 2.05% | −10,401−10.4% | Reduced |
| Natixis Advisors, L.P. | 90,195 | $43.7M | 0.18% | +78,160+649.4% | Added |
| Natixis Investment Managers International | 99,255 | $48.1M | 2.79% | +99,255 | New |
| Envestnet Asset Management Inc | 100,057 | $48.5M | 0.03% | +2,232+2.3% | Added |
| California Public Employees Retirement System | 100,466 | $48.7M | 0.04% | −440−0.4% | Reduced |
| Royal Bank of Canada | 100,720 | $48.8M | 0.01% | −27,525−21.5% | Reduced |
| Epoch Investment Partners, Inc. | 101,614 | $49.3M | 0.27% | −15,020−12.9% | Reduced |
| AQR Capital Management LLC | 104,537 | $50.7M | 0.09% | +6,052+6.1% | Added |
| Segall Bryant & Hamill, LLC | 105,282 | $51.0M | 0.49% | −201−0.2% | Reduced |
| Deutsche Bank AG | 105,811 | $51.3M | 0.02% | −19,949−15.9% | Reduced |
| Rafferty Asset Management, LLC | 109,468 | $53.1M | 0.36% | −36,384−24.9% | Reduced |
| UBS Group AG | 110,582 | $53.6M | 0.02% | +2,140+2.0% | Added |
| AXA S.A. | 122,679 | $59.5M | 0.17% | +28,238+29.9% | Added |
| Morgan Stanley | 124,282 | $60.2M | 0.01% | +50,341+68.1% | Added |
| CIBC Private Wealth Group, LLC | 124,397 | $60.3M | 0.14% | −1,126−0.9% | Reduced |
| American Century Companies Inc | 128,046 | $62.1M | 0.04% | +42,859+50.3% | Added |
| BNP Paribas Arbitrage, SA | 133,874 | $64.9M | 0.15% | −3,548−2.6% | Reduced |
| Parametric Portfolio Associates LLC | 134,333 | $65.1M | 0.04% | +3,695+2.8% | Added |
| Sumitomo Mitsui Trust Holdings, Inc. | 137,124 | $66.5M | 0.04% | −5,862−4.1% | Reduced |
| Allianz Asset Management GmbH | 141,349 | $68.5M | 0.06% | +4,873+3.6% | Added |
| Polar Capital Holdings Plc | 145,113 | $70.3M | 0.39% | −163,224−52.9% | Reduced |
| Principal Financial Group Inc | 145,709 | $70.6M | 0.05% | +6,162+4.4% | Added |
| SEI Investments Co | 146,396 | $70.9M | 0.15% | +100,432+218.5% | Added |
| STRS Ohio | 146,478 | $71.0M | 0.27% | 00.0% | Unchanged |
| Eagle Asset Management Inc | 147,337 | $71.4M | 0.32% | −1,062−0.7% | Reduced |
| Dimensional Fund Advisors LP | 149,800 | $72.6M | 0.02% | −2,142−1.4% | Reduced |
| Citigroup Inc | 153,231 | $74.3M | 0.07% | +31,277+25.6% | Added |
| Thrivent Financial for Lutherans | 159,736 | $77.4M | 0.16% | −20,931−11.6% | Reduced |
| Robeco Schweiz AG | 160,906 | $78.0M | 1.12% | −105,071−39.5% | Reduced |
| Swiss National Bank | 171,789 | $83.3M | 0.05% | −3,600−2.1% | Reduced |
| Ardevora Asset Management LLP | 172,763 | $83.7M | 1.06% | −30,000−14.8% | Reduced |
| New York State Common Retirement Fund | 178,072 | $86.3M | 0.09% | −29,890−14.4% | Reduced |
| TD Asset Management Inc | 187,663 | $91.0M | 0.09% | +3,222+1.7% | Added |
| Victory Capital Management Inc | 197,880 | $95.9M | 0.09% | −5,625−2.8% | Reduced |
| Wellington Management Group LLP | 198,059 | $96.0M | 0.02% | −1,312−0.7% | Reduced |
| TimesSquare Capital Management, LLC | 201,400 | $97.6M | 0.85% | −57,425−22.2% | Reduced |
| Charles Schwab Investment Management Inc | 218,194 | $105.8M | 0.03% | −88,579−28.9% | Reduced |
| Baird Financial Group, Inc. | 237,131 | $114.9M | 0.29% | −1,179−0.5% | Reduced |
| DekaBank Deutsche Girozentrale | 240,838 | $116.4M | 0.33% | +38,833+19.2% | Added |
| Goldman Sachs Group Inc | 245,284 | $118.9M | 0.03% | +38,991+18.9% | Added |
| UBS Asset Management Americas Inc | 258,420 | $125.3M | 0.05% | +110,538+74.7% | Added |
| Ensign Peak Advisors, Inc | 262,892 | $127.4M | 0.27% | +23,895+10.0% | Added |
| Legal & General Group Plc | 289,258 | $140.2M | 0.05% | −260.0% | Reduced |
| FMR LLC | 296,732 | $143.8M | 0.01% | +63,515+27.2% | Added |
| Voya Investment Management LLC | 323,798 | $156.9M | 0.31% | −12,360−3.7% | Reduced |
| Lord, Abbett & Co. LLC | 333,838 | $161.8M | 0.39% | −20,667−5.8% | Reduced |
| Bank of New York Mellon Corp | 336,832 | $163.3M | 0.03% | −20,585−5.8% | Reduced |
| Vaughan Nelson Investment Management, L.P. | 338,443 | $164.0M | 1.67% | +338,443 | New |
| Norges Bank | 356,878 | $173.0M | 0.04% | −42,057−10.5% | Reduced |
| Congress Asset Management Co | 374,886 | $181.7M | 1.42% | −12,285−3.2% | Reduced |
| Earnest Partners LLC | 399,223 | $193.5M | 1.18% | −149,018−27.2% | Reduced |
| Artisan Partners Limited Partnership | 448,079 | $217.2M | 0.27% | −13,966−3.0% | Reduced |
| Northern Trust Corp | 456,797 | $221.4M | 0.04% | +16,005+3.6% | Added |
| Impax Asset Management Group plc | 471,987 | $227.8M | 0.94% | −48,867−9.4% | Reduced |
| GQG Partners LLC | 510,409 | $247.4M | 0.68% | +510,409 | New |
| JPMorgan Chase & Co | 520,081 | $252.1M | 0.03% | +7,229+1.4% | Added |
| Clearbridge Investments, LLC | 539,705 | $261.6M | 0.19% | −5,194−1.0% | Reduced |
| Fred Alger Management, LLC | 557,977 | $270.4M | 0.64% | +1,825+0.3% | Added |
| Bank of America Corp | 617,782 | $299.4M | 0.03% | −7,128−1.1% | Reduced |
| Alliancebernstein L.P. | 630,986 | $305.8M | 0.12% | −79,661−11.2% | Reduced |
| Wells Fargo & Company | 700,520 | $339.5M | 0.08% | −8,857−1.2% | Reduced |
| Neuberger Berman Group LLC | 791,255 | $383.4M | 0.34% | −268,163−25.3% | Reduced |
| Geode Capital Management, LLC | 829,734 | $401.2M | 0.05% | +23,443+2.9% | Added |
| Nuveen Asset Management, LLC | 892,408 | $432.5M | 0.14% | +370,702+71.1% | Added |
| Brown Advisory Inc | 927,629 | $449.6M | 0.66% | −105,777−10.2% | Reduced |
| Wasatch Advisors Inc | 1,000,679 | $485.0M | 1.97% | −26,027−2.5% | Reduced |
| Macquarie Group Ltd | 1,051,349 | $509.6M | 0.43% | −100,358−8.7% | Reduced |
| Massachusetts Financial Services Co | 1,220,347 | $591.5M | 0.17% | −11,429−0.9% | Reduced |
| Price T Rowe Associates Inc | 1,517,738 | $735.6M | 0.07% | +1,112,187+274.2% | Added |
| Franklin Resources Inc | 1,575,404 | $763.6M | 0.29% | −5,927−0.4% | Reduced |
| Invesco Ltd. | 1,672,568 | $810.7M | 0.21% | −80,602−4.6% | Reduced |
| State Street Corp | 1,742,399 | $845.5M | 0.04% | +12,615+0.7% | Added |
| Vanguard Group Inc | 4,772,312 | $2.31B | 0.06% | −78,355−1.6% | Reduced |
| BlackRock Inc. | 5,930,193 | $2.87B | 0.08% | +55,039+0.9% | Added |
| Artemis Investment Management LLP | 0 | $0 | 0.00% | −52,306−100.0% | Sold out |
| Arrowstreet Capital, Limited Partnership | 0 | $0 | 0.00% | −51,385−100.0% | Sold out |
| Woodline Partners LP | 0 | $0 | 0.00% | −36,855−100.0% | Sold out |
| Connor, Clark & Lunn Investment Management Ltd. | 0 | $0 | 0.00% | −33,149−100.0% | Sold out |
| Verition Fund Management LLC | 0 | $0 | 0.00% | −25,758−100.0% | Sold out |
| Albar Capital Ltd | 0 | $0 | 0.00% | −25,489−100.0% | Sold out |
| Capital Fund Management S.A. | 0 | $0 | 0.00% | −21,882−100.0% | Sold out |
| Schonfeld Strategic Advisors LLC | 0 | $0 | 0.00% | −17,000−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −15,280−100.0% | Sold out |
| Twinbeech Capital LP | 0 | $0 | 0.00% | −8,910−100.0% | Sold out |
| Tudor Investment Corp Et Al | 0 | $0 | 0.00% | −8,264−100.0% | Sold out |
| Healthcare of Ontario Pension Plan Trust Fund | 0 | $0 | 0.00% | −8,064−100.0% | Sold out |
| Bridgewater Associates, LP | 0 | $0 | 0.00% | −5,648−100.0% | Sold out |
| Legato Capital Management LLC | 0 | $0 | 0.00% | −3,848−100.0% | Sold out |
| GWM Advisors LLC | 0 | $0 | 0.00% | −2,453−100.0% | Sold out |
| Sciencast Management LP | 0 | $0 | 0.00% | −2,367−100.0% | Sold out |
| E. Ohman J:or Asset Management AB | 0 | $0 | 0.00% | −1,700−100.0% | Sold out |
| Northwest & Ethical Investments L.P. | 0 | $0 | 0.00% | −1,635−100.0% | Sold out |
| Paloma Partners Management Co | 0 | $0 | 0.00% | −1,562−100.0% | Sold out |
| NN Investment Partners Holdings N.V. | 0 | $0 | 0.00% | −1,464−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −1,400−100.0% | Sold out |