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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 2023

Institutional positions in Monolithic Power Systems, Inc. as of Dec 31, 2023. 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
737
+90 vs. Q3 2023
Shares held
45.4M
−552.0K (−1.2%) vs. Q3 2023
Total value
$28.6B
+$7.40B (+34.9%) vs. Q3 2023
New holders
137
276 more added
Sold out
47
243 more reduced

8 institutions that held it in Q3 2023 haven't filed for Q4 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q3 2023: 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 2023: 737 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 2023: $28.6B
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 2023

Shares, value and share of portfolio for each institution holding Monolithic Power Systems, Inc.; share changes are against Q3 2023.

Institutions holding MPWR in Q4 2023
InstitutionSharesValue% of portfolioChange in sharesAction
AQR Capital Management LLC43,198$27.2M0.05%+15,348+55.1%Added
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.46,355$26.8M0.05%+3,881+9.1%Added
New York State Teachers Retirement System41,946$26.5M0.06%+40.0%Added
Susquehanna International Group, LLP41,864$26.4M0.04%−45,008−51.8%Reduced
Loomis Sayles & Co L P40,755$25.7M0.04%−9,203−18.4%Reduced
Public Employees Retirement Association of Colorado40,170$25.3M0.12%−3,734−8.5%Reduced
Great West Life Assurance Co38,960$24.5M0.05%−26−0.1%Reduced
Vantage Investment Partners, LLC37,573$23.7M2.36%−5,113−12.0%Reduced
Jupiter Asset Management Ltd37,125$23.4M0.23%−7,697−17.2%Reduced
Whittier Trust Co35,820$22.6M0.37%−2,967−7.6%Reduced
Bamco Inc35,693$22.5M0.06%+717+2.0%Added
Nicholas Investment Partners, LP35,304$22.3M2.61%+277+0.8%Added
Analog Century Management LP34,693$21.9M5.06%+4,342+14.3%Added
National Bank of Canada36,218$21.9M0.04%+25,927+251.9%Added
Prudential Financial Inc34,153$20.8M0.03%−6,702−16.4%Reduced
Alyeska Investment Group, L.P.33,020$20.8M0.14%+33,020New
First Trust Advisors LP32,918$20.8M0.02%−55,201−62.6%Reduced
Mitsubishi UFJ Trust & Banking Corp31,081$19.6M0.05%−1,323−4.1%Reduced
Congress Wealth Management LLC30,929$19.5M0.36%−298−1.0%Reduced
Comgest Global Investors S.A.S.30,866$19.5M0.29%+6,272+25.5%Added
Parnassus Investments30,663$19.3M0.04%+2,345+8.3%Added
Vontobel Holding Ltd.30,436$19.2M0.16%−692−2.2%Reduced
APG Asset Management N.V.33,522$19.1M0.04%−1,745−4.9%Reduced
Gilder Gagnon Howe & Co LLC29,857$18.8M0.26%−1,639−5.2%Reduced
Segall Bryant & Hamill, LLC29,526$18.6M0.36%−43,625−59.6%Reduced
Toronto Dominion Bank29,080$18.3M0.03%+4,072+16.3%Added
Degroof Petercam Asset Management28,965$18.3M0.24%+28,965New
Royal London Asset Management Ltd28,881$18.2M0.05%+611+2.2%Added
Hantz Financial Services, Inc.28,668$18.1M0.39%−1,851−6.1%Reduced
D. E. Shaw & Co., Inc.27,414$17.3M0.02%+5,319+24.1%Added
Russell Investments Group, Ltd.26,953$17.0M0.03%+4,018+17.5%Added
Chevy Chase Trust Holdings, Inc.26,762$16.9M0.06%−94−0.4%Reduced
Bridgewater Associates, LP26,280$16.6M0.09%−8,499−24.4%Reduced
Janney Montgomery Scott LLC26,189$16.5M0.05%+22,337+579.9%Added
Calamos Advisors LLC25,767$16.3M0.08%−354−1.4%Reduced
State of New Jersey Common Pension Fund D25,620$16.2M0.05%00.0%Unchanged
State of Wisconsin Investment Board25,439$16.0M0.05%+216+0.9%Added
Azimuth Capital Investment Management LLC25,389$16.0M0.72%−72−0.3%Reduced
Geneva Capital Management LLC23,891$15.1M0.28%+9,472+65.7%Added
Public Employees Retirement System of Ohio23,590$14.9M0.06%+703+3.1%Added
US Bancorp23,157$14.6M0.02%+8,153+54.3%Added
Arcadia Investment Management Corp22,954$14.5M2.77%−487−2.1%Reduced
Capital Fund Management S.A.22,320$14.1M0.18%+22,320New
Tudor Investment Corp Et Al22,077$13.9M0.19%−4,598−17.2%Reduced
Illinois Municipal Retirement Fund21,265$13.4M0.22%+2,498+13.3%Added
Standard Life Aberdeen plc20,815$13.1M0.03%+8,294+66.2%Added
Treasurer of the State of North Carolina20,393$12.9M0.06%−120−0.6%Reduced
TD Asset Management Inc19,715$12.4M0.01%−114,898−85.4%Reduced
Asset Management One Co.,Ltd.19,262$12.2M0.05%−245−1.3%Reduced
State of Alaska, Department of Revenue17,829$11.2M0.13%−340−1.9%Reduced
Stifel Financial Corp17,756$11.2M0.01%+24+0.1%Added
Whittier Trust Co of Nevada Inc17,610$11.1M0.36%−1,108−5.9%Reduced
Nomura Asset Management Co Ltd17,535$11.1M0.05%+501+2.9%Added
Kornitzer Capital Management Inc17,363$11.0M0.21%00.0%Unchanged
Zurcher Kantonalbank (Zurich Cantonalbank)17,172$10.8M0.04%−407−2.3%Reduced
KBC Group NV17,096$10.8M0.04%−18,177−51.5%Reduced
Snowden Capital Advisors LLC17,088$10.8M0.41%+482+2.9%Added
Erste Asset Management GmbH17,000$10.7M0.16%−2,500−12.8%Reduced
Advisor Group Holdings, Inc.16,951$10.7M0.02%−9,546−36.0%Reduced
CIBC World Markets Corp16,602$10.5M0.06%+13,965+529.6%Added
Raymond James Financial Services Advisors, Inc.16,045$10.1M0.02%+322+2.0%Added
Moran Wealth Management, LLC15,343$9.68M0.34%+331+2.2%Added
Sit Investment Associates Inc15,186$9.58M0.23%−1,190−7.3%Reduced
Weiss Multi-Strategy Advisers LLC15,000$9.46M0.24%−17,500−53.8%Reduced
Copeland Capital Management, LLC14,921$9.41M0.19%−365−2.4%Reduced
Marshall Wace, LLP14,391$9.08M0.02%+14,391New
State of Tennessee, Treasury Department14,380$9.07M0.04%+917+6.8%Added
Alberta Investment Management Corp14,232$8.98M0.08%+4,570+47.3%Added
Value Aligned Research Advisors, LLC14,222$8.97M2.27%+559+4.1%Added
Assetmark, Inc14,120$8.91M0.03%+9,655+216.2%Added
State of Michigan Retirement System13,770$8.69M0.05%+100+0.7%Added
American International Group, Inc.13,723$8.66M0.04%+151+1.1%Added
Healthcare of Ontario Pension Plan Trust Fund13,702$8.64M0.03%+4,266+45.2%Added
Qube Research & Technologies Ltd13,626$8.60M0.02%−146,161−91.5%Reduced
MetLife Investment Management13,486$8.51M0.06%−174−1.3%Reduced
Citadel Advisors LLC13,401$8.45M0.01%−46,643−77.7%Reduced
Swedbank AB13,400$8.45M0.01%+1,200+9.8%Added
MML Investors Services, LLC13,233$8.35M0.04%+1,476+12.6%Added
Amalgamated Bank12,934$8.16M0.07%−64−0.5%Reduced
Westwood Holdings Group Inc.12,872$8.12M0.07%00.0%Unchanged
Atria Wealth Solutions, Inc.12,753$8.05M0.10%−258−2.0%Reduced
ProShare Advisors LLC12,566$7.93M0.02%−1,454−10.4%Reduced
Arizona State Retirement System12,475$7.87M0.06%+184+1.5%Added
Storebrand Asset Management AS12,312$7.77M0.03%+2,392+24.1%Added
Skandinaviska Enskilda Banken AB (publ)12,157$7.68M0.04%−159−1.3%Reduced
Forsta Ap-Fonden11,800$7.44M0.08%+3,100+35.6%Added
Nisa Investment Advisors, LLC11,748$7.41M0.05%+1,020+9.5%Added
Pinnacle Financial Partners Inc11,673$7.36M0.17%+552+5.0%Added
Schroder Investment Management Group11,574$7.30M0.01%+1,469+14.5%Added
Blair William & Co11,475$7.24M0.02%−33−0.3%Reduced
Silvant Capital Management LLC11,440$7.23M0.39%00.0%Unchanged
Lido Advisors, LLC11,389$7.20M0.07%+11,389New
Fifth Third Bancorp10,919$6.89M0.03%+416+4.0%Added
Comerica Bank10,850$6.84M0.03%+326+3.1%Added
Xponance, Inc.10,571$6.67M0.08%−299−2.8%Reduced
Retirement Systems of Alabama10,560$6.66M0.03%−243−2.2%Reduced
HBK Investments L P10,536$6.65M0.16%+10,536New
Commonwealth of Pennsylvania Public School Empls Retrmt Sys10,492$6.62M0.05%+885+9.2%Added
Aquatic Capital Management LLC10,400$6.56M0.17%+1,520+17.1%Added
HighTower Advisors, LLC10,082$6.37M0.01%+1,542+18.1%Added