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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, Q3 2023

Institutional positions in Monolithic Power Systems, Inc. as of Sep 30, 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
655
+6 vs. Q2 2023
Shares held
46.0M
−638.8K (−1.4%) vs. Q2 2023
Total value
$21.2B
−$3.93B (−15.6%) vs. Q2 2023
New holders
70
265 more added
Sold out
64
240 more reduced

3 institutions that held it in Q2 2023 haven't filed for Q3 2023 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 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 holdersQ3 2023: 655 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 heldQ3 2023: $21.2B
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, Q3 2023

Shares, value and share of portfolio for each institution holding Monolithic Power Systems, Inc.; share changes are against Q2 2023.

Institutions holding MPWR in Q3 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Adage Capital Partners GP, L.L.C.47,500$21.9M0.05%+12,600+36.1%Added
Jupiter Asset Management Ltd44,822$20.7M0.23%−6,432−12.5%Reduced
Public Employees Retirement Association of Colorado43,904$20.3M0.10%−271−0.6%Reduced
Vantage Investment Partners, LLC42,686$19.7M2.58%+1,881+4.6%Added
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.42,474$19.6M0.04%+4,187+10.9%Added
New York State Teachers Retirement System41,942$19.4M0.05%−244−0.6%Reduced
Prudential Financial Inc40,855$18.9M0.03%+1,395+3.5%Added
Great West Life Assurance Co38,986$18.0M0.04%−2,850−6.8%Reduced
Whittier Trust Co38,787$17.9M0.32%+846+2.2%Added
Woodline Partners LP36,627$16.9M0.20%+36,627New
KBC Group NV35,273$16.3M0.07%+2,655+8.1%Added
APG Asset Management N.V.35,267$16.3M0.03%−4,244−10.7%Reduced
Nicholas Investment Partners, LP35,027$16.2M1.21%−1,020−2.8%Reduced
Bamco Inc34,976$16.2M0.05%+1,976+6.0%Added
Bridgewater Associates, LP34,779$16.1M0.10%+34,779New
Scout Investments, Inc.33,872$15.6M0.36%+12,722+60.2%Added
Weiss Multi-Strategy Advisers LLC32,500$15.0M0.37%+28,746+765.7%Added
Mitsubishi UFJ Trust & Banking Corp32,404$15.0M0.04%−7,708−19.2%Reduced
Gilder Gagnon Howe & Co LLC31,496$14.6M0.22%−428−1.3%Reduced
Congress Wealth Management LLC31,227$14.4M0.30%−4,216−11.9%Reduced
Vontobel Holding Ltd.31,128$14.4M0.13%+674+2.2%Added
Hantz Financial Services, Inc.30,519$14.1M0.36%+37+0.1%Added
Analog Century Management LP30,351$14.0M3.76%−6,887−18.5%Reduced
Bank of Montreal28,308$13.6M0.01%+4,449+18.6%Added
Parnassus Investments28,318$13.1M0.03%00.0%Unchanged
Royal London Asset Management Ltd28,270$13.1M0.04%+2,720+10.6%Added
AQR Capital Management LLC27,850$12.9M0.03%−1,649−5.6%Reduced
J. Goldman & Co LP27,674$12.8M0.64%+27,674New
Chevy Chase Trust Holdings, Inc.26,856$12.4M0.05%+939+3.6%Added
Tudor Investment Corp Et Al26,675$12.3M0.18%+26,675New
Advisor Group Holdings, Inc.26,497$12.2M0.02%+5,689+27.3%Added
Calamos Advisors LLC26,121$12.1M0.07%−1,034−3.8%Reduced
State of New Jersey Common Pension Fund D25,620$11.8M0.04%−951−3.6%Reduced
Azimuth Capital Investment Management LLC25,461$11.8M0.58%−583−2.2%Reduced
State of Wisconsin Investment Board25,223$11.7M0.04%+1,821+7.8%Added
Toronto Dominion Bank25,008$11.6M0.02%−976−3.8%Reduced
Comgest Global Investors S.A.S.24,594$11.4M0.19%+10,653+76.4%Added
Arcadia Investment Management Corp23,441$10.8M2.29%−84−0.4%Reduced
Russell Investments Group, Ltd.22,935$10.6M0.02%−37−0.2%Reduced
Public Employees Retirement System of Ohio22,887$10.6M0.05%−1,796−7.3%Reduced
AXA S.A.22,100$10.2M0.04%+210+1.0%Added
D. E. Shaw & Co., Inc.22,095$10.2M0.02%−17,676−44.4%Reduced
Treasurer of the State of North Carolina20,513$9.48M0.05%+80+0.4%Added
Asset Management One Co.,Ltd.19,507$9.01M0.04%+270+1.4%Added
Erste Asset Management GmbH19,500$8.81M0.15%+5,000+34.5%Added
Pacer Advisors, Inc.18,966$8.76M0.03%−4,878−20.5%Reduced
Illinois Municipal Retirement Fund18,767$8.67M0.16%+3,218+20.7%Added
Whittier Trust Co of Nevada Inc18,718$8.65M0.31%+264+1.4%Added
State of Alaska, Department of Revenue18,169$8.39M0.11%+290+1.6%Added
Stifel Financial Corp17,732$8.19M0.01%−1,542−8.0%Reduced
Zurcher Kantonalbank (Zurich Cantonalbank)17,579$8.12M0.04%+2,531+16.8%Added
Kornitzer Capital Management Inc17,363$8.02M0.17%00.0%Unchanged
Nomura Asset Management Co Ltd17,034$7.87M0.04%−158−0.9%Reduced
Snowden Capital Advisors LLC16,606$7.67M0.33%+31+0.2%Added
Sit Investment Associates Inc16,376$7.57M0.21%−415−2.5%Reduced
Raymond James Financial Services Advisors, Inc.15,723$7.26M0.01%+174+1.1%Added
Copeland Capital Management, LLC15,286$7.06M0.15%−407−2.6%Reduced
Moran Wealth Management, LLC15,012$6.94M0.27%+40.0%Added
US Bancorp15,004$6.93M0.01%−3,747−20.0%Reduced
Driehaus Capital Management LLC14,665$6.78M0.09%+287+2.0%Added
Geneva Capital Management LLC14,419$6.66M0.14%−2,361−14.1%Reduced
ProShare Advisors LLC14,020$6.48M0.02%−488−3.4%Reduced
Granahan Investment Management Inc13,920$6.43M0.23%+2,199+18.8%Added
State of Michigan Retirement System13,670$6.32M0.04%+500+3.8%Added
Value Aligned Research Advisors, LLC13,663$6.31M1.99%+13,663New
MetLife Investment Management13,660$6.31M0.05%+328+2.5%Added
American International Group, Inc.13,572$6.27M0.04%+463+3.5%Added
Gotham Asset Management, LLC13,541$6.26M0.13%+6,376+89.0%Added
State of Tennessee, Treasury Department13,463$6.22M0.03%−185−1.4%Reduced
Atria Wealth Solutions, Inc.13,011$6.01M0.08%+68+0.5%Added
Amalgamated Bank12,998$6.00M0.05%+829+6.8%Added
Westwood Holdings Group Inc.12,872$5.95M0.06%+1,560+13.8%Added
Standard Life Aberdeen plc12,521$5.78M0.01%−424−3.3%Reduced
Skandinaviska Enskilda Banken AB (publ)12,316$5.69M0.04%−138−1.1%Reduced
Arizona State Retirement System12,291$5.68M0.05%+27+0.2%Added
Swedbank AB12,200$5.64M0.01%−2,200−15.3%Reduced
Two Sigma Investments, LP12,176$5.63M0.02%+12,176New
MML Investors Services, LLC11,757$5.43M0.03%+3,321+39.4%Added
Blair William & Co11,508$5.32M0.02%−10,369−47.4%Reduced
Silvant Capital Management LLC11,440$5.30M0.32%−1,374−10.7%Reduced
Pinnacle Financial Partners Inc11,121$5.14M0.13%+467+4.4%Added
Xponance, Inc.10,870$5.02M0.07%+502+4.8%Added
Retirement Systems of Alabama10,803$4.99M0.02%+565+5.5%Added
Nisa Investment Advisors, LLC10,728$4.96M0.04%−170−1.6%Reduced
Allianz Asset Management GmbH10,599$4.90M0.01%−43,119−80.3%Reduced
Comerica Bank10,524$4.86M0.03%+10,524New
Fifth Third Bancorp10,503$4.85M0.02%−159−1.5%Reduced
PDT Partners, LLC10,253$4.74M0.60%−40.0%Reduced
National Bank of Canada10,291$4.73M0.01%+2,683+35.3%Added
Schroder Investment Management Group10,105$4.67M0.01%−1,331−11.6%Reduced
NorthCrest Asset Manangement, LLC10,000$4.62M0.19%00.0%Unchanged
Storebrand Asset Management AS9,920$4.58M0.02%−475−4.6%Reduced
Texas Permanent School Fund9,874$4.56M0.04%+425+4.5%Added
Alberta Investment Management Corp9,662$4.46M0.05%+827+9.4%Added
Commonwealth of Pennsylvania Public School Empls Retrmt Sys9,607$4.44M0.04%+1,750+22.3%Added
Thornburg Investment Management Inc9,536$4.41M0.07%−249−2.5%Reduced
Oregon Public Employees Retirement Fund9,457$4.37M0.06%−2,328−19.8%Reduced
Healthcare of Ontario Pension Plan Trust Fund9,436$4.36M0.02%+9,436New
Fred Alger Management, LLC9,352$4.32M0.02%+2,206+30.9%Added
La Financiere de L'Echiquier9,133$4.22M0.22%−1,258−12.1%Reduced