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 |
|---|---|---|---|---|---|
| Raymond James Financial Inc | 145,618 | $201.3M | 0.05% | −50,442−25.7% | Reduced |
| Amundi | 145,747 | $201.4M | 0.05% | −13,160−8.3% | Reduced |
| American Century Companies Inc | 147,212 | $203.5M | 0.09% | −52,473−26.3% | Reduced |
| SEI Investments Co | 147,966 | $204.5M | 0.18% | −7,325−4.7% | Reduced |
| Earnest Partners LLC | 148,707 | $205.6M | 0.74% | −3,064−2.0% | Reduced |
| Canada Pension Plan Investment Board | 148,792 | $205.7M | 0.11% | +95,448+178.9% | Added |
| Dimensional Fund Advisors LP | 154,447 | $213.4M | 0.04% | +680+0.4% | Added |
| Neuberger Berman Group LLC | 156,360 | $216.1M | 0.14% | +6,253+4.2% | Added |
| SG Americas Securities, LLC | 162,475 | $224.6M | 0.13% | −19,291−10.6% | Reduced |
| Deutsche Bank AG | 167,290 | $231.3M | 0.07% | −14,436−7.9% | Reduced |
| Jane Street Group, LLC | 179,293 | $247.8M | 0.16% | +174,210+3,427.3% | Added |
| Principal Financial Group Inc | 180,241 | $249.2M | 0.12% | +6,042+3.5% | Added |
| Brown Advisory Inc | 180,434 | $249.5M | 0.39% | −199,463−52.5% | Reduced |
| Jennison Associates LLC | 185,502 | $256.4M | 0.15% | +136,108+275.6% | Added |
| HSBC Holdings PLC | 190,811 | $262.4M | 0.13% | +31,938+20.1% | Added |
| Two Sigma Investments, LP | 190,505 | $263.3M | 0.20% | +178,487+1,485.2% | Added |
| Kayne Anderson Rudnick Investment Management LLC | 206,130 | $284.9M | 0.89% | −60,540−22.7% | Reduced |
| BNP Paribas Arbitrage, SA | 207,881 | $287.4M | 0.15% | −16,130−7.2% | Reduced |
| California Public Employees Retirement System | 223,899 | $309.5M | 0.17% | +64,241+40.2% | Added |
| FIL Ltd | 224,582 | $310.5M | 0.22% | +69,945+45.2% | Added |
| Vanguard Fiduciary Trust Co | 279,965 | $387.0M | 0.09% | +1,466+0.5% | Added |
| Bank of New York Mellon Corp | 291,107 | $402.4M | 0.07% | +1,277+0.4% | Added |
| UBS Asset Management Americas Inc | 292,368 | $404.2M | 0.07% | −9,837−3.3% | Reduced |
| Citigroup Inc | 325,281 | $449.7M | 0.21% | −15,551−4.6% | Reduced |
| Voya Investment Management LLC | 340,269 | $469.7M | 0.41% | −53,290−13.5% | Reduced |
| Legal & General Group Plc | 359,936 | $497.6M | 0.10% | −20,153−5.3% | Reduced |
| Charles Schwab Investment Management Inc | 388,951 | $537.7M | 0.07% | +12,577+3.3% | Added |
| JPMorgan Chase & Co | 434,949 | $571.0M | 0.03% | −119,970−21.6% | Reduced |
| Massachusetts Financial Services Co | 442,176 | $611.2M | 0.20% | −125,593−22.1% | Reduced |
| UBS Group AG | 449,479 | $621.3M | 0.10% | −90,934−16.8% | Reduced |
| Rafferty Asset Management, LLC | 459,278 | $634.9M | 1.45% | +141,805+44.7% | Added |
| Barclays PLC | 474,132 | $655.4M | 0.21% | −81,676−14.7% | Reduced |
| Northern Trust Corp | 479,492 | $662.8M | 0.08% | −9,628−2.0% | Reduced |
| First Trust Advisors LP | 482,781 | $667.4M | 0.39% | −108,572−18.4% | Reduced |
| Royal Bank of Canada | 487,212 | $673.5M | 0.11% | +13,844+2.9% | Added |
| Bank of America Corp | 536,236 | $741.3M | 0.05% | +154,074+40.3% | Added |
| Morgan Stanley | 727,885 | $1.01B | 0.05% | +71,518+10.9% | Added |
| Van Eck Associates Corp | 746,237 | $1.03B | 0.63% | +221,666+42.3% | Added |
| Norges Bank | 751,399 | $1.04B | 0.10% | +751,399 | New |
| Goldman Sachs Group Inc | 780,650 | $1.08B | 0.11% | +212,586+37.4% | Added |
| Franklin Resources Inc | 811,974 | $1.12B | 0.24% | −116,697−12.6% | Reduced |
| Price T Rowe Associates Inc | 976,798 | $1.35B | 0.14% | −286,156−22.7% | Reduced |
| Geode Capital Management, LLC | 1,195,281 | $1.65B | 0.09% | −236,785−16.5% | Reduced |
| State Street Corp | 2,282,186 | $3.16B | 0.09% | +93,732+4.3% | Added |
| Invesco Ltd. | 2,343,930 | $3.24B | 0.26% | −172,057−6.8% | Reduced |
| Vanguard Portfolio Management LLC | 2,504,858 | $3.46B | 0.16% | −11,634−0.5% | Reduced |
| Vanguard Capital Management LLC | 3,126,756 | $4.32B | 0.09% | +43,307+1.4% | Added |
| FMR LLC | 5,177,258 | $7.16B | 0.31% | +776,427+17.6% | Added |
| BlackRock, Inc. | 5,589,925 | $7.73B | 0.12% | −482,542−7.9% | Reduced |
| GFS Advisors, LLC | 4 | – | – | +4 | New |
| T. Rowe Price Investment Management, Inc. | 0 | $0 | 0.00% | −721,622−100.0% | Sold out |
| Anther Capital Ltd | 0 | $0 | 0.00% | −233,288−100.0% | Sold out |
| Sora Investors LLC | 0 | $0 | 0.00% | −24,585−100.0% | Sold out |
| Ceredex Value Advisors LLC | 0 | $0 | 0.00% | −17,275−100.0% | Sold out |
| Night Squared LP | 0 | $0 | 0.00% | −14,592−100.0% | Sold out |
| 1832 Asset Management L.P. | 0 | $0 | 0.00% | −13,400−100.0% | Sold out |
| Silvant Capital Management LLC | 0 | $0 | 0.00% | −13,106−100.0% | Sold out |
| Indivisible Partners | 0 | $0 | 0.00% | −4,378−100.0% | Sold out |
| NFJ Investment Group, LLC | 0 | $0 | 0.00% | −4,375−100.0% | Sold out |
| Connective Capital Management, LLC | 0 | $0 | 0.00% | −4,105−100.0% | Sold out |
| Pinkerton Retirement Specialists, LLC | 0 | $0 | 0.00% | −3,982−100.0% | Sold out |
| Havemeyer Place LP | 0 | $0 | 0.00% | −2,953−100.0% | Sold out |
| Westerkirk Capital Inc. | 0 | $0 | 0.00% | −2,424−100.0% | Sold out |
| Holocene Advisors, LP | 0 | $0 | 0.00% | −2,303−100.0% | Sold out |
| Jacobs Levy Equity Management, Inc | 0 | $0 | 0.00% | −1,839−100.0% | Sold out |
| BLI - Banque de Luxembourg Investments | 0 | $0 | 0.00% | −2,200−100.0% | Sold out |
| Winton Group Ltd | 0 | $0 | 0.00% | −1,541−100.0% | Sold out |
| Bellwether Advisors, LLC | 0 | $0 | 0.00% | −1,425−100.0% | Sold out |
| Kovack Advisors, Inc. | 0 | $0 | 0.00% | −1,422−100.0% | Sold out |
| Ninepoint Partners LP | 0 | $0 | 0.00% | −1,099−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −997−100.0% | Sold out |
| Banco Santander, S.A. | 0 | $0 | 0.00% | −892−100.0% | Sold out |
| Lighthouse Investment Partners, LLC | 0 | $0 | 0.00% | −838−100.0% | Sold out |
| Belpointe Asset Management LLC | 0 | $0 | 0.00% | −820−100.0% | Sold out |
| Fortis Capital Advisors, LLC | 0 | $0 | 0.00% | −820−100.0% | Sold out |
| WESPAC Advisors, LLC | 0 | $0 | 0.00% | −757−100.0% | Sold out |
| JT Stratford LLC | 0 | $0 | 0.00% | −693−100.0% | Sold out |
| B&L Asset Management LLC | 0 | $0 | 0.00% | −626−100.0% | Sold out |
| MOKAN Wealth Management Inc. | 0 | $0 | 0.00% | −542−100.0% | Sold out |
| Capula Management Ltd | 0 | $0 | 0.00% | −502−100.0% | Sold out |
| GLR Partners, LLC | 0 | $0 | 0.00% | −410−100.0% | Sold out |
| Calamos Wealth Management LLC | 0 | $0 | 0.00% | −397−100.0% | Sold out |
| OneAscent Investment Solutions LLC | 0 | $0 | 0.00% | −359−100.0% | Sold out |
| Ethos Financial Group, LLC | 0 | $0 | 0.00% | −353−100.0% | Sold out |
| Aigen Investment Management, LP | 0 | $0 | 0.00% | −320−100.0% | Sold out |
| Board of the Pension Protection Fund | 0 | $0 | 0.00% | −280−100.0% | Sold out |
| Concentric Capital Strategies, LP | 0 | $0 | 0.00% | −274−100.0% | Sold out |
| Tuttle Tactical Management | 0 | $0 | 0.00% | −272−100.0% | Sold out |
| Gallacher Capital Management LLC | 0 | $0 | 0.00% | −265−100.0% | Sold out |
| Maridea Wealth Management LLC | 0 | $0 | 0.00% | −248−100.0% | Sold out |
| TABR Capital Management, LLC | 0 | $0 | 0.00% | −246−100.0% | Sold out |
| Beese Fulmer Investment Management, Inc. | 0 | $0 | 0.00% | −234−100.0% | Sold out |
| New Wave Wealth Advisors LLC | 0 | $0 | 0.00% | −230−100.0% | Sold out |
| Woodward Diversified Capital, LLC | 0 | $0 | 0.00% | −159−100.0% | Sold out |
| Wedbush Securities Inc | 0 | $0 | 0.00% | −194−100.0% | Sold out |
| CFS Investment Advisory Services, LLC | 0 | $0 | 0.00% | −137−100.0% | Sold out |
| Quadrant Private Wealth Management, LLC | 0 | $0 | 0.00% | −183−100.0% | Sold out |
| Timothy G. Youngquist 2020 Irrevocable Trust | 0 | $0 | 0.00% | −71−100.0% | Sold out |
| Root Financial Partners, LLC | 0 | $0 | 0.00% | −60−100.0% | Sold out |
| Opal Wealth Advisors, LLC | 0 | $0 | 0.00% | −55−100.0% | Sold out |