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 |
|---|---|---|---|---|---|
| Credit Agricole S A | 22,938 | $20.8M | 0.06% | +6,879+42.8% | Added |
| Prudential Financial Inc | 23,476 | $21.3M | 0.03% | −2,697−10.3% | Reduced |
| APG Asset Management N.V. | 27,578 | $21.3M | 0.06% | −916−3.2% | Reduced |
| Toronto Dominion Bank | 23,649 | $21.4M | 0.04% | −41,408−63.6% | Reduced |
| Lazard Asset Management LLC | 23,783 | $21.6M | 0.04% | +4,754+25.0% | Added |
| Danske Bank A/S | 24,417 | $22.1M | 0.05% | −9,641−28.3% | Reduced |
| Chevy Chase Trust Holdings, Inc. | 24,577 | $22.3M | 0.06% | −20.0% | Reduced |
| Millennium Management LLC | 24,679 | $22.4M | 0.02% | −145,811−85.5% | Reduced |
| Nissay Asset Management Corp | 24,752 | $22.4M | 0.12% | +8,677+54.0% | Added |
| Whittier Trust Co of Nevada Inc | 22,864 | $23.0M | 0.48% | +260+1.2% | Added |
| Forsta Ap-Fonden | 25,720 | $23.3M | 0.14% | −1,880−6.8% | Reduced |
| Toroso Investments, LLC | 26,079 | $23.6M | 0.10% | +16,572+174.3% | Added |
| NZS Capital, LLC | 26,209 | $23.8M | 0.73% | +209+0.8% | Added |
| DnB Asset Management AS | 26,399 | $23.9M | 0.08% | −748−2.8% | Reduced |
| Parnassus Investments | 26,590 | $24.1M | 0.06% | −821−3.0% | Reduced |
| New York State Common Retirement Fund | 26,706 | $24.2M | 0.03% | 00.0% | Unchanged |
| Man Group plc | 26,936 | $24.4M | 0.05% | +17,197+176.6% | Added |
| Schroder Investment Management Group | 27,458 | $25.3M | 0.02% | +3,025+12.4% | Added |
| Swiss Life Asset Management Ltd | 28,804 | $26.1M | 0.13% | −3,487−10.8% | Reduced |
| Korea Investment CORP | 29,225 | $26.5M | 0.05% | +4,200+16.8% | Added |
| Royal London Asset Management Ltd | 29,331 | $26.6M | 0.06% | +145+0.5% | Added |
| State of Wisconsin Investment Board | 29,357 | $26.6M | 0.06% | +1,215+4.3% | Added |
| Macquarie Group Ltd | 29,556 | $26.8M | 0.12% | −151,239−83.7% | Reduced |
| Mitsubishi UFJ Trust & Banking Corp | 29,599 | $26.8M | 0.06% | +2,244+8.2% | Added |
| Pinnacle Financial Partners, Inc. | 29,972 | $27.2M | 0.21% | +29,972 | New |
| Segall Bryant & Hamill, LLC | 29,983 | $27.2M | 0.37% | −5,825−16.3% | Reduced |
| Natixis | 30,462 | $27.6M | 0.11% | −7,231−19.2% | Reduced |
| CIBC World Markets Corp | 31,321 | $28.4M | 0.14% | +31,321 | New |
| PFA Pension, Forsikringsaktieselskab | 31,314 | $28.9M | 0.08% | +31,314 | New |
| Vontobel Holding Ltd. | 33,883 | $30.7M | 0.10% | −2,156−6.0% | Reduced |
| Handelsbanken Fonder AB | 35,115 | $31.8M | 0.10% | −1,658−4.5% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 35,152 | $31.9M | 0.05% | +20,493+139.8% | Added |
| RMB Capital Management, LLC | 35,548 | $32.3M | 0.56% | −3,227−8.3% | Reduced |
| Azimuth Capital Investment Management LLC | 36,210 | $32.8M | 1.18% | +2,656+7.9% | Added |
| Sapient Capital LLC | 35,564 | $32.9M | 0.46% | −467−1.3% | Reduced |
| Swedbank AB | 37,394 | $33.9M | 0.03% | −2,050−5.2% | Reduced |
| Standard Life Aberdeen plc | 37,703 | $34.2M | 0.05% | −228−0.6% | Reduced |
| Factory Mutual Insurance Co | 39,272 | $35.6M | 0.36% | −700−1.8% | Reduced |
| Public Employees Retirement Association of Colorado | 39,589 | $35.9M | 0.13% | 00.0% | Unchanged |
| New York State Teachers Retirement System | 39,794 | $36.1M | 0.07% | −207−0.5% | Reduced |
| Aviva PLC | 39,855 | $36.1M | 0.06% | +2,049+5.4% | Added |
| Bank of Nova Scotia | 40,474 | $36.7M | 0.05% | +36,698+971.9% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 40,553 | $36.8M | 0.06% | +8,198+25.3% | Added |
| Park National Corp | 41,606 | $37.7M | 1.18% | +1,763+4.4% | Added |
| Meridiem Capital Partners LP | 42,723 | $38.7M | 2.43% | +42,723 | New |
| Geneva Capital Management LLC | 42,847 | $38.8M | 0.73% | +363+0.9% | Added |
| State Board of Administration of Florida Retirement System | 43,276 | $39.2M | 0.07% | −573−1.3% | Reduced |
| AQR Capital Management LLC | 46,278 | $41.9M | 0.02% | +8,573+22.7% | Added |
| Russell Investments Group, Ltd. | 46,749 | $42.4M | 0.05% | +6,622+16.5% | Added |
| Ostrum Asset Management | 46,882 | $42.5M | 2.04% | +5,578+13.5% | Added |
| Whittier Trust Co | 44,252 | $44.5M | 0.48% | +51+0.1% | Added |
| Pacer Advisors, Inc. | 50,654 | $45.9M | 0.12% | −6,989−12.1% | Reduced |
| CI Private Wealth, LLC | 51,333 | $47.3M | 0.06% | −2,264−4.2% | Reduced |
| Bank of Montreal | 52,288 | $47.4M | 0.02% | −1,703−3.2% | Reduced |
| Pembroke Management, LTD | 53,142 | $48.2M | 4.98% | −794−1.5% | Reduced |
| Great West Life Assurance Co | 54,156 | $49.1M | 0.09% | −13,494−19.9% | Reduced |
| Manufacturers Life Insurance Company, The | 53,833 | $49.2M | 0.04% | −57,274−51.5% | Reduced |
| Liontrust Investment Partners LLP | 54,933 | $49.8M | 0.74% | +52,724+2,386.8% | Added |
| Panagora Asset Management Inc | 56,092 | $50.8M | 0.18% | −6,515−10.4% | Reduced |
| Susquehanna International Group, LLP | 56,855 | $51.5M | 0.07% | −73,047−56.2% | Reduced |
| CIBC Private Wealth Group, LLC | 58,914 | $53.4M | 0.09% | −3,449−5.5% | Reduced |
| Quantinno Capital Management LP | 59,564 | $54.0M | 0.11% | +4,950+9.1% | Added |
| Jennison Associates LLC | 61,828 | $56.0M | 0.03% | +7,873+14.6% | Added |
| LPL Financial LLC | 64,085 | $58.1M | 0.02% | +6,002+10.3% | Added |
| Bamco Inc | 65,227 | $59.1M | 0.16% | +17,031+35.3% | Added |
| CBOE Vest Financial, LLC | 66,613 | $60.4M | 0.77% | +17,336+35.2% | Added |
| Resona Asset Management Co.,Ltd. | 66,386 | $60.6M | 0.29% | −4,343−6.1% | Reduced |
| Eventide Asset Management, LLC | 68,373 | $62.0M | 0.97% | +27,131+65.8% | Added |
| Canada Pension Plan Investment Board | 69,732 | $63.2M | 0.04% | +47,080+207.8% | Added |
| Analog Century Management LP | 70,723 | $64.1M | 3.15% | −6,868−8.9% | Reduced |
| Grandeur Peak Global Advisors, LLC | 72,468 | $65.7M | 8.84% | +7,293+11.2% | Added |
| California State Teachers Retirement System | 74,069 | $67.1M | 0.07% | −679−0.9% | Reduced |
| TD Asset Management Inc | 74,300 | $67.3M | 0.05% | −328−0.4% | Reduced |
| National Pension Service | 74,527 | $67.5M | 0.05% | −4,487−5.7% | Reduced |
| MUFG Securities EMEA plc | 74,966 | $67.9M | 0.79% | +74,049+8,075.1% | Added |
| Wells Fargo & Company | 77,569 | $70.3M | 0.01% | +5,692+7.9% | Added |
| EULAV Asset Management | 77,682 | $70.4M | 1.88% | −30,595−28.3% | Reduced |
| STRS Ohio | 77,809 | $70.5M | 0.26% | +20.0% | Added |
| Adage Capital Partners GP, L.L.C. | 77,852 | $70.6M | 0.11% | −5,300−6.4% | Reduced |
| Stifel Financial Corp | 80,712 | $73.2M | 0.07% | −18,610−18.7% | Reduced |
| Zevenbergen Capital Investments LLC | 81,378 | $73.8M | 1.64% | +6,710+9.0% | Added |
| Ensign Peak Advisors, Inc | 81,857 | $74.2M | 0.13% | −81,382−49.9% | Reduced |
| Frontier Capital Management Co LLC | 84,118 | $76.2M | 0.81% | −79,798−48.7% | Reduced |
| California Public Employees Retirement System | 84,836 | $76.9M | 0.04% | −394−0.5% | Reduced |
| Mirae Asset Global Investments Co., Ltd. | 86,636 | $78.5M | 0.22% | +28,282+48.5% | Added |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 90,070 | $81.6M | 0.18% | +24,657+37.7% | Added |
| Congress Asset Management Co | 90,686 | $82.2M | 0.58% | −17,585−16.2% | Reduced |
| Candriam Luxembourg S.C.A. | 94,447 | $85.6M | 0.43% | +8,540+9.9% | Added |
| Robeco Schweiz AG | 95,018 | $86.1M | 1.93% | −8,219−8.0% | Reduced |
| Baird Financial Group, Inc. | 97,610 | $88.5M | 0.14% | −10,775−9.9% | Reduced |
| ProShare Advisors LLC | 99,461 | $90.1M | 0.16% | +74,082+291.9% | Added |
| Rhumbline Advisers | 104,246 | $94.5M | 0.08% | −3,182−3.0% | Reduced |
| Impax Asset Management Group plc | 106,238 | $96.3M | 0.60% | −25,163−19.1% | Reduced |
| Thrivent Financial for Lutherans | 111,749 | $101.3M | 0.18% | +96,469+631.3% | Added |
| Victory Capital Management Inc | 114,968 | $104.2M | 0.06% | +26,762+30.3% | Added |
| BNP PARIBAS ASSET MANAGEMENT Holding S.A. | 115,721 | $104.9M | 0.12% | +109,684+1,816.9% | Added |
| Nomura Asset Management Co Ltd | 117,019 | $106.1M | 0.27% | −5,382−4.4% | Reduced |
| Sumitomo Mitsui Trust Holdings, Inc. | 119,015 | $107.9M | 0.06% | +6,511+5.8% | Added |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 118,703 | $111.1M | 0.08% | +6,371+5.7% | Added |
| Envestnet Asset Management Inc | 124,634 | $113.0M | 0.03% | −35,106−22.0% | Reduced |