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 5 sales; 1,258 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
Q3 2026 data is still coming in: 699 institutions have reported holding MPWR so far. See Q3 2026
- Institutional holders
- 1,258
- +143 vs. Q1 2026
- Shares held
- 47.6M
- +383.8K (+0.8%) vs. Q1 2026
- Total value
- $65.6B
- +$14.1B (+27.4%) vs. Q1 2026
- New holders
- 222
- 420 more added
- Sold out
- 79
- 468 more reduced
13 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 | 1,258 | $65.6B |
| Q1 2026 | 1,128 | $51.6B |
| Q4 2025 | 1,065 | $44.2B |
| Q3 2025 | 983 | $43.0B |
| Q2 2025 | 908 | $34.6B |
| Q1 2025 | 863 | $27.0B |
| Q4 2024 | 867 | $27.6B |
| Q3 2024 | 886 | $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 |
|---|---|---|---|---|---|
| BlackRock, Inc. | 5,589,925 | $7.73B | 0.12% | −482,542−7.9% | Reduced |
| FMR LLC | 5,177,258 | $7.16B | 0.31% | +776,427+17.6% | Added |
| Vanguard Capital Management LLC | 3,126,756 | $4.32B | 0.09% | +43,307+1.4% | Added |
| Vanguard Portfolio Management LLC | 2,504,858 | $3.46B | 0.16% | −11,634−0.5% | Reduced |
| Invesco Ltd. | 2,343,930 | $3.24B | 0.26% | −172,057−6.8% | Reduced |
| State Street Corp | 2,282,186 | $3.16B | 0.09% | +93,732+4.3% | Added |
| Geode Capital Management, LLC | 1,195,281 | $1.65B | 0.09% | −236,785−16.5% | Reduced |
| Price T Rowe Associates Inc | 976,798 | $1.35B | 0.14% | −286,156−22.7% | Reduced |
| Franklin Resources Inc | 811,974 | $1.12B | 0.24% | −116,697−12.6% | Reduced |
| Goldman Sachs Group Inc | 780,650 | $1.08B | 0.11% | +212,586+37.4% | Added |
| Norges Bank | 751,399 | $1.04B | 0.10% | +751,399 | New |
| Van Eck Associates Corp | 746,237 | $1.03B | 0.63% | +221,666+42.3% | Added |
| Morgan Stanley | 727,885 | $1.01B | 0.05% | +71,518+10.9% | Added |
| Bank of America Corp | 536,236 | $741.3M | 0.05% | +154,074+40.3% | Added |
| Royal Bank of Canada | 487,212 | $673.5M | 0.11% | +13,844+2.9% | Added |
| First Trust Advisors LP | 482,781 | $667.4M | 0.39% | −108,572−18.4% | Reduced |
| Northern Trust Corp | 479,492 | $662.8M | 0.08% | −9,628−2.0% | Reduced |
| Barclays PLC | 474,132 | $655.4M | 0.21% | −81,676−14.7% | Reduced |
| Rafferty Asset Management, LLC | 459,278 | $634.9M | 1.45% | +141,805+44.7% | Added |
| UBS Group AG | 449,479 | $621.3M | 0.10% | −90,934−16.8% | Reduced |
| Massachusetts Financial Services Co | 442,176 | $611.2M | 0.20% | −125,593−22.1% | Reduced |
| JPMorgan Chase & Co | 434,949 | $571.0M | 0.03% | −119,970−21.6% | Reduced |
| Charles Schwab Investment Management Inc | 388,951 | $537.7M | 0.07% | +12,577+3.3% | Added |
| Legal & General Group Plc | 359,936 | $497.6M | 0.10% | −20,153−5.3% | Reduced |
| Voya Investment Management LLC | 340,269 | $469.7M | 0.41% | −53,290−13.5% | Reduced |
| Citigroup Inc | 325,281 | $449.7M | 0.21% | −15,551−4.6% | Reduced |
| UBS Asset Management Americas Inc | 292,368 | $404.2M | 0.07% | −9,837−3.3% | Reduced |
| Bank of New York Mellon Corp | 291,107 | $402.4M | 0.07% | +1,277+0.4% | Added |
| Vanguard Fiduciary Trust Co | 279,965 | $387.0M | 0.09% | +1,466+0.5% | Added |
| FIL Ltd | 224,582 | $310.5M | 0.22% | +69,945+45.2% | Added |
| California Public Employees Retirement System | 223,899 | $309.5M | 0.17% | +64,241+40.2% | Added |
| BNP Paribas Arbitrage, SA | 207,881 | $287.4M | 0.15% | −16,130−7.2% | Reduced |
| Kayne Anderson Rudnick Investment Management LLC | 206,130 | $284.9M | 0.89% | −60,540−22.7% | Reduced |
| Two Sigma Investments, LP | 190,505 | $263.3M | 0.20% | +178,487+1,485.2% | Added |
| HSBC Holdings PLC | 190,811 | $262.4M | 0.13% | +31,938+20.1% | Added |
| Jennison Associates LLC | 185,502 | $256.4M | 0.15% | +136,108+275.6% | Added |
| Brown Advisory Inc | 180,434 | $249.5M | 0.39% | −199,463−52.5% | Reduced |
| Principal Financial Group Inc | 180,241 | $249.2M | 0.12% | +6,042+3.5% | Added |
| Jane Street Group, LLC | 179,293 | $247.8M | 0.16% | +174,210+3,427.3% | Added |
| Deutsche Bank AG | 167,290 | $231.3M | 0.07% | −14,436−7.9% | Reduced |
| SG Americas Securities, LLC | 162,475 | $224.6M | 0.13% | −19,291−10.6% | Reduced |
| Neuberger Berman Group LLC | 156,360 | $216.1M | 0.14% | +6,253+4.2% | Added |
| Dimensional Fund Advisors LP | 154,447 | $213.4M | 0.04% | +680+0.4% | Added |
| Canada Pension Plan Investment Board | 148,792 | $205.7M | 0.11% | +95,448+178.9% | Added |
| Earnest Partners LLC | 148,707 | $205.6M | 0.74% | −3,064−2.0% | Reduced |
| SEI Investments Co | 147,966 | $204.5M | 0.18% | −7,325−4.7% | Reduced |
| American Century Companies Inc | 147,212 | $203.5M | 0.09% | −52,473−26.3% | Reduced |
| Amundi | 145,747 | $201.4M | 0.05% | −13,160−8.3% | Reduced |
| Raymond James Financial Inc | 145,618 | $201.3M | 0.05% | −50,442−25.7% | Reduced |
| Vaughan Nelson Investment Management, L.P. | 144,974 | $200.4M | 1.77% | +5,622+4.0% | Added |
| Federated Hermes, Inc. | 144,949 | $200.4M | 0.29% | +96,385+198.5% | Added |
| Alliancebernstein L.P. | 177,107 | $193.6M | 0.07% | +52,460+42.1% | Added |
| DekaBank Deutsche Girozentrale | 190,443 | $190.2M | 0.32% | 00.0% | Unchanged |
| Millennium Management LLC | 136,835 | $189.2M | 0.13% | +136,835 | New |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 132,064 | $182.6M | 0.10% | +482+0.4% | Added |
| Swiss National Bank | 131,610 | $181.9M | 0.10% | −8,930−6.4% | Reduced |
| Wells Fargo & Company | 131,302 | $181.5M | 0.03% | +29,604+29.1% | Added |
| Artisan Partners Limited Partnership | 130,154 | $179.9M | 0.29% | −20,719−13.7% | Reduced |
| Ameriprise Financial Inc | 129,720 | $179.3M | 0.04% | +10,297+8.6% | Added |
| Nuveen, LLC | 129,292 | $178.7M | 0.04% | −26,562−17.0% | Reduced |
| Susquehanna International Group, LLP | 123,776 | $171.1M | 0.15% | +93,813+313.1% | Added |
| Allianz Asset Management GmbH | 116,281 | $160.7M | 0.15% | +19,807+20.5% | Added |
| TimesSquare Capital Management, LLC | 110,824 | $153.2M | 2.25% | −28,016−20.2% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 110,819 | $153.2M | 0.09% | −3,645−3.2% | Reduced |
| Envestnet Asset Management Inc | 108,573 | $150.1M | 0.04% | −17,282−13.7% | Reduced |
| Vanguard Global Advisers, LLC | 106,109 | $146.7M | 0.07% | −493−0.5% | Reduced |
| Natixis Advisors, L.P. | 105,784 | $146.2M | 0.16% | +9,937+10.4% | Added |
| Nomura Asset Management International Inc. | 103,548 | $143.1M | 0.21% | −44,419−30.0% | Reduced |
| Pictet Asset Management Holding SA | 100,736 | $139.2M | 0.13% | −20,138−16.7% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 97,618 | $134.9M | 0.26% | +14,355+17.2% | Added |
| Adage Capital Partners GP, L.L.C. | 96,352 | $133.2M | 0.19% | +22,700+30.8% | Added |
| Robeco Schweiz AG | 96,033 | $132.8M | 2.13% | +1,040+1.1% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 95,039 | $131.4M | 0.13% | −34,964−26.9% | Reduced |
| Victory Capital Management Inc | 94,482 | $130.6M | 0.07% | −17,510−15.6% | Reduced |
| Lord, Abbett & Co. LLC | 94,447 | $130.6M | 0.37% | −27,400−22.5% | Reduced |
| Rhumbline Advisers | 94,367 | $130.4M | 0.10% | −7,743−7.6% | Reduced |
| Vanguard Asset Management, Ltd | 92,594 | $128.0M | 0.09% | +10,757+13.1% | Added |
| Thrivent Financial for Lutherans | 90,064 | $124.5M | 0.21% | −6,052−6.3% | Reduced |
| D1 Capital Partners L.P.SuperinvestorD1 Capital Partners | 85,103 | $117.6M | 0.34% | +85,103 | New |
| Baird Financial Group, Inc. | 81,895 | $113.2M | 0.16% | +7,624+10.3% | Added |
| Allspring Global Investments Holdings, LLC | 84,341 | $112.3M | 0.17% | −34,465−29.0% | Reduced |
| Congress Asset Management Co | 80,425 | $111.2M | 0.69% | −2,918−3.5% | Reduced |
| Zevenbergen Capital Investments LLC | 78,604 | $108.7M | 2.48% | −3,307−4.0% | Reduced |
| Capitolis Liquid Global Markets LLC | 78,432 | $108.4M | 0.47% | +74,041+1,686.2% | Added |
| HRT Financial LP | 77,349 | $106.9M | 0.20% | +77,349 | New |
| Healthcare of Ontario Pension Plan Trust Fund | 76,360 | $105.6M | 0.15% | −59,578−43.8% | Reduced |
| Liontrust Investment Partners LLP | 75,786 | $104.8M | 1.54% | +4,520+6.3% | Added |
| Quantinno Capital Management LP | 75,694 | $104.6M | 0.13% | +2,923+4.0% | Added |
| DF Dent & Co Inc | 72,954 | $100.8M | 1.91% | −15,595−17.6% | Reduced |
| Wellington Management Group LLP | 72,001 | $99.5M | 0.02% | −178,510−71.3% | Reduced |
| Ensign Peak Advisors, Inc | 71,154 | $98.4M | 0.16% | −6,942−8.9% | Reduced |
| California State Teachers Retirement System | 69,420 | $96.0M | 0.09% | −2,943−4.1% | Reduced |
| Stifel Financial Corp | 67,103 | $92.8M | 0.08% | −12,231−15.4% | Reduced |
| LPL Financial LLC | 65,267 | $90.2M | 0.02% | −2,677−3.9% | Reduced |
| ProShare Advisors LLC | 64,600 | $89.3M | 0.13% | −16,841−20.7% | Reduced |
| Qube Research & Technologies Ltd | 64,548 | $89.2M | 0.10% | +64,548 | New |
| National Pension Service | 63,529 | $87.8M | 0.06% | −4,186−6.2% | Reduced |
| Citadel Advisors LLC | 63,487 | $87.8M | 0.05% | +49,975+369.9% | Added |
| Impax Asset Management Group plc | 63,427 | $87.7M | 0.57% | −25,029−28.3% | Reduced |
| Renaissance Technologies LLC | 63,066 | $87.2M | 0.12% | +63,066 | New |