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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 2022

Institutional positions in Monolithic Power Systems, Inc. as of Dec 31, 2022. 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
611
−9 vs. Q3 2022
Shares held
46.9M
+1.17M (+2.6%) vs. Q3 2022
Total value
$16.5B
−$90.0M (−0.5%) vs. Q3 2022
New holders
87
232 more added
Sold out
96
231 more reduced

10 institutions that held it in Q3 2022 haven't filed for Q4 2022 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2022: 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.

Institutional holdersQ4 2022: 611 institutions
Q1 2021: 530 institutionsQ2 2021: 533 institutionsQ3 2021: 579 institutionsQ4 2021: 627 institutionsQ1 2022: 611 institutionsQ2 2022: 625 institutionsQ3 2022: 630 institutionsQ4 2022: 611 institutionsQ1 2023: 669 institutionsQ2 2023: 652 institutionsQ3 2023: 655 institutionsQ4 2023: 737 institutionsQ1 2024: 807 institutionsQ2 2024: 838 institutionsQ3 2024: 885 institutionsQ4 2024: 864 institutionsQ1 2025: 862 institutionsQ2 2025: 907 institutionsQ3 2025: 981 institutionsQ4 2025: 1,061 institutionsQ1 2026: 1,124 institutionsQ2 2026: 1,250 institutions
Value heldQ4 2022: $16.5B
Q1 2021: $15.1BQ2 2021: $16.1BQ3 2021: $21.1BQ4 2021: $21.5BQ1 2022: $21.3BQ2 2022: $16.8BQ3 2022: $16.6BQ4 2022: $16.5BQ1 2023: $23.3BQ2 2023: $25.2BQ3 2023: $21.2BQ4 2023: $28.6BQ1 2024: $31.2BQ2 2024: $38.6BQ3 2024: $42.8BQ4 2024: $27.6BQ1 2025: $27.0BQ2 2025: $34.6BQ3 2025: $43.0BQ4 2025: $44.2BQ1 2026: $51.6BQ2 2026: $65.6B
Institutions holding MPWR and their total value by quarter
QuarterHoldersValue
Q2 20261,250$65.6B
Q1 20261,124$51.6B
Q4 20251,061$44.2B
Q3 2025981$43.0B
Q2 2025907$34.6B
Q1 2025862$27.0B
Q4 2024864$27.6B
Q3 2024885$42.8B
Q2 2024838$38.6B
Q1 2024807$31.2B
Q4 2023737$28.6B
Q3 2023655$21.2B
Q2 2023652$25.2B
Q1 2023669$23.3B
Q4 2022611$16.5B
Q3 2022630$16.6B
Q2 2022625$16.8B
Q1 2022611$21.3B
Q4 2021627$21.5B
Q3 2021579$21.1B
Q2 2021533$16.1B
Q1 2021530$15.1B

Institutions, Q4 2022

Shares, value and share of portfolio for each institution holding Monolithic Power Systems, Inc.; share changes are against Q3 2022.

Institutions holding MPWR in Q4 2022
InstitutionSharesValue% of portfolioChange in sharesAction
Loomis Sayles & Co L P51,915$18.4M0.04%+7,306+16.4%Added
RMB Capital Management, LLC51,518$18.2M0.65%+2,003+4.0%Added
APG Asset Management N.V.50,302$17.8M0.03%+30,350+152.1%Added
KCL Capital, L.P.50,000$17.7M3.05%+50,000New
Zevenbergen Capital Investments LLC49,745$17.6M0.59%−555−1.1%Reduced
Public Employees Retirement Association of Colorado49,475$17.5M0.10%00.0%Unchanged
Vantage Investment Partners, LLC46,774$16.5M2.57%+416+0.9%Added
Nicholas Investment Partners, LP45,609$16.1M1.41%+6,774+17.4%Added
Great West Life Assurance Co45,035$16.0M0.04%−143−0.3%Reduced
KBC Group NV44,104$15.6M0.08%−10,304−18.9%Reduced
New York State Teachers Retirement System42,792$15.1M0.04%−78−0.2%Reduced
BNP Paribas Arbitrage, SA41,070$14.5M0.04%−14,682−26.3%Reduced
Qube Research & Technologies Ltd40,087$14.2M0.09%−193,773−82.9%Reduced
Prudential Financial Inc39,641$14.0M0.02%−4,256−9.7%Reduced
Parnassus Investments39,450$13.9M0.03%+23,294+144.2%Added
Whittier Trust Co39,092$13.8M0.27%−9,609−19.7%Reduced
Gilder Gagnon Howe & Co LLC38,828$13.7M0.26%−368−0.9%Reduced
Natixis Investment Managers International36,880$13.0M0.97%−12,255−24.9%Reduced
Worldquant Millennium Advisors LLC36,329$12.8M0.29%−75,713−67.6%Reduced
Hantz Financial Services, Inc.35,815$12.7M0.38%−500−1.4%Reduced
Congress Wealth Management LLC35,312$12.5M0.32%−1,679−4.5%Reduced
Acadian Asset Management LLC34,952$12.3M0.06%−24,334−41.0%Reduced
Adage Capital Partners GP, L.L.C.34,400$12.2M0.03%−10,900−24.1%Reduced
Mitsubishi UFJ Trust & Banking Corp33,377$11.8M0.03%−2,923−8.1%Reduced
Vontobel Holding Ltd.34,441$11.7M0.12%+14,238+70.5%Added
Calamos Advisors LLC32,513$11.5M0.06%+31,381+2,772.2%Added
Bamco Inc32,441$11.5M0.04%+5,719+21.4%Added
Russell Investments Group, Ltd.32,228$11.4M0.02%−12,243−27.5%Reduced
AQR Capital Management LLC32,121$11.2M0.03%−44,067−57.8%Reduced
State of Wisconsin Investment Board30,972$11.0M0.04%−340−1.1%Reduced
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.31,474$10.8M0.03%+2,791+9.7%Added
Connor, Clark & Lunn Investment Management Ltd.30,251$10.7M0.06%+30,251New
Advisor Group Holdings, Inc.30,055$10.6M0.02%+5,725+23.5%Added
Comerica Bank24,417$9.81M0.08%+13,860+131.3%Added
Bank of Montreal27,424$9.70M0.01%+5,792+26.8%Added
Azimuth Capital Investment Management LLC26,808$9.48M0.48%−27,505−50.6%Reduced
First Trust Advisors LP26,524$9.38M0.01%−35,561−57.3%Reduced
Analog Century Management LP25,800$9.12M3.96%−230−0.9%Reduced
State of New Jersey Common Pension Fund D25,761$9.11M0.03%00.0%Unchanged
Chevy Chase Trust Holdings, Inc.25,649$9.07M0.04%−1,491−5.5%Reduced
Arcadia Investment Management Corp25,597$9.05M2.11%−909−3.4%Reduced
Toronto Dominion Bank24,926$8.81M0.01%+804+3.3%Added
Janney Montgomery Scott LLC23,378$8.27M0.03%+2,151+10.1%Added
Public Employees Retirement System of Ohio23,343$8.25M0.04%−3,387−12.7%Reduced
Blair William & Co23,295$8.24M0.04%+3,396+17.1%Added
Nomura Asset Management Co Ltd22,703$8.03M0.05%+41+0.2%Added
DF Dent & Co Inc22,662$8.01M0.12%+1,705+8.1%Added
Schonfeld Strategic Advisors LLC22,582$7.99M0.07%+16,378+264.0%Added
Asset Management One Co.,Ltd.21,682$7.66M0.04%−2,047−8.6%Reduced
Scout Investments, Inc.21,518$7.61M0.16%−80,951−79.0%Reduced
US Bancorp20,378$7.21M0.01%−1,077−5.0%Reduced
Kornitzer Capital Management Inc20,363$7.20M0.15%+20,363New
Schroder Investment Management Group20,296$7.18M0.01%+9,757+92.6%Added
Treasurer of the State of North Carolina19,703$6.97M0.04%+250+1.3%Added
Susquehanna International Group, LLP18,821$6.66M0.01%−22,628−54.6%Reduced
Whittier Trust Co of Nevada Inc18,507$6.54M0.26%−7,768−29.6%Reduced
Pictet Asset Management SA18,011$6.37M0.01%−1,180−6.1%Reduced
Aviva PLC17,889$6.33M0.03%−9,105−33.7%Reduced
Caisse de Depot Et Placement du Quebec17,708$6.26M0.02%+10,323+139.8%Added
Sit Investment Associates Inc17,041$6.03M0.17%+118+0.7%Added
Geneva Capital Management LLC16,612$5.87M0.13%−2,940−15.0%Reduced
Snowden Capital Advisors LLC16,540$5.85M0.25%−5,255−24.1%Reduced
Atria Wealth Solutions, Inc.15,962$5.65M0.09%−1,232−7.2%Reduced
Silvant Capital Management LLC15,631$5.54M0.39%−162−1.0%Reduced
Royal London Asset Management Ltd15,077$5.33M0.02%+156+1.0%Added
Zurcher Kantonalbank (Zurich Cantonalbank)15,018$5.31M0.03%+1,939+14.8%Added
Illinois Municipal Retirement Fund14,578$5.16M0.12%−12,588−46.3%Reduced
Swedbank AB14,400$5.09M0.01%+14,400New
Nisa Investment Advisors, LLC14,287$5.05M0.04%+604+4.4%Added
Retirement Systems of Alabama14,286$5.05M0.02%−477−3.2%Reduced
Cinctive Capital Management LP13,979$4.94M0.25%+11,705+514.7%Added
TCWP LLC13,806$4.88M0.99%+13,806New
Edgestream Partners, L.P.13,690$4.84M0.54%−17,211−55.7%Reduced
Man Group plc13,669$4.83M0.02%−22,841−62.6%Reduced
MetLife Investment Management13,469$4.76M0.04%−232−1.7%Reduced
ProShare Advisors LLC13,454$4.76M0.02%+519+4.0%Added
Capital Fund Management S.A.13,393$4.74M0.10%−22,707−62.9%Reduced
CIBC World Markets Corp13,295$4.70M0.03%+9,815+282.0%Added
American International Group, Inc.13,064$4.62M0.03%+231+1.8%Added
State of Michigan Retirement System12,770$4.52M0.03%+100+0.8%Added
Arizona State Retirement System12,581$4.45M0.04%+415+3.4%Added
Amalgamated Bank12,276$4.34M0.04%+80+0.7%Added
State of Alaska, Department of Revenue12,278$4.34M0.05%−13,971−53.2%Reduced
ExodusPoint Capital Management, LP12,074$4.27M0.07%−22,433−65.0%Reduced
Westwood Holdings Group Inc.11,979$4.24M0.04%−161−1.3%Reduced
Thornburg Investment Management Inc11,919$4.21M0.07%−582−4.7%Reduced
Copeland Capital Management, LLC11,612$4.11M0.11%+2,459+26.9%Added
Standard Life Aberdeen plc11,590$4.10M0.01%+379+3.4%Added
Granahan Investment Management Inc11,515$4.07M0.12%+2,588+29.0%Added
Taylor Frigon Capital Management LLC11,507$4.07M2.31%−575−4.8%Reduced
Synovus Financial Corp11,303$4.00M0.05%+121+1.1%Added
Raymond James Financial Services Advisors, Inc.11,220$3.97M0.01%−1,949−14.8%Reduced
Forsta Ap-Fonden10,900$3.85M0.04%+1,400+14.7%Added
TownSquare Capital, LLC10,778$3.81M0.09%+2,971+38.1%Added
Korea Investment CORP10,558$3.73M0.01%−24,890−70.2%Reduced
Fifth Third Bancorp10,406$3.68M0.02%−487−4.5%Reduced
HighTower Advisors, LLC10,400$3.67M0.01%+5,595+116.4%Added
Walleye Capital LLC10,290$3.64M0.08%+10,290New
MML Investors Services, LLC10,100$3.57M0.02%+734+7.8%Added
Andra AP-fonden10,100$3.57M0.11%+5,200+106.1%Added