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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 9 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, Q2 2021

Institutional positions in Monolithic Power Systems, Inc. as of Jun 30, 2021. 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
533
+10 vs. Q1 2021
Shares held
43.1M
+1.24M (+3.0%) vs. Q1 2021
Total value
$16.1B
+$1.31B (+8.9%) vs. Q1 2021
New holders
62
214 more added
Sold out
52
186 more reduced

7 institutions that held it in Q1 2021 haven't filed for Q2 2021 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2021: 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 holdersQ2 2021: 533 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 heldQ2 2021: $16.1B
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, Q2 2021

Shares, value and share of portfolio for each institution holding Monolithic Power Systems, Inc.; share changes are against Q1 2021.

Institutions holding MPWR in Q2 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Cinctive Capital Management LP26,506$9.90M0.54%+10,615+66.8%Added
Voloridge Investment Management, LLC27,098$10.1M0.07%+27,098New
Chevy Chase Trust Holdings, Inc.27,406$10.2M0.03%−1,375−4.8%Reduced
LPL Financial LLC28,150$10.5M0.01%+6,653+30.9%Added
Russell Investments Group, Ltd.28,644$10.7M0.02%+3,294+13.0%Added
Lazard Asset Management LLC29,498$11.0M0.01%+20,750+237.2%Added
Toronto Dominion Bank30,076$11.2M0.02%+4,555+17.8%Added
Hantz Financial Services, Inc.30,416$11.4M0.42%+523+1.7%Added
Arcadia Investment Management Corp30,839$11.5M2.17%−1,650−5.1%Reduced
Mitsubishi UFJ Trust & Banking Corp30,986$11.6M0.02%−10,923−26.1%Reduced
Schroder Investment Management Group31,511$11.8M0.01%+28+0.1%Added
Connor, Clark & Lunn Investment Management Ltd.33,149$12.4M0.06%+6,154+22.8%Added
Bank of Montreal32,794$12.4M0.01%+7,292+28.6%Added
Worldquant Millennium Advisors LLC33,698$12.6M0.28%−42,979−56.1%Reduced
Pictet Asset Management Ltd34,446$12.9M0.01%+6,046+21.3%Added
Thornburg Investment Management Inc35,911$13.4M0.15%−1,805−4.8%Reduced
Woodline Partners LP36,855$13.8M0.26%+36,855New
D. E. Shaw & Co., Inc.37,279$13.9M0.02%−12,834−25.6%Reduced
Prudential Financial Inc37,549$14.0M0.02%−27,592−42.4%Reduced
New York State Teachers Retirement System39,317$14.7M0.03%+80.0%Added
State of Wisconsin Investment Board40,686$15.2M0.03%+5,053+14.2%Added
Frontier Capital Management Co LLC41,563$15.5M0.11%+5,858+16.4%Added
Gilder Gagnon Howe & Co LLC43,835$16.4M0.08%−155−0.4%Reduced
SEI Investments Co45,964$17.1M0.04%−10,820−19.1%Reduced
Pembroke Management, LTD45,842$17.1M1.34%−4,627−9.2%Reduced
Adage Capital Partners GP, L.L.C.46,700$17.4M0.03%+8,900+23.5%Added
Credit Suisse AG47,134$17.6M0.01%−25,635−35.2%Reduced
RMB Capital Management, LLC47,410$17.7M0.59%+181+0.4%Added
Federated Hermes, Inc.48,533$18.1M0.03%+14,581+42.9%Added
Panagora Asset Management Inc49,645$18.5M0.10%+47,500+2,214.5%Added
Whittier Trust Co49,932$18.6M0.33%+2,806+6.0%Added
Parnassus Investments50,262$18.8M0.04%00.0%Unchanged
Arrowstreet Capital, Limited Partnership51,385$19.2M0.02%+20,196+64.8%Added
Artemis Investment Management LLP52,306$19.5M0.17%+52,306New
Public Employees Retirement System of Ohio52,365$19.6M0.07%+1,489+2.9%Added
Teacher Retirement System of Texas52,745$19.7M0.11%+6,040+12.9%Added
Scout Investments, Inc.53,194$19.9M0.30%−33,442−38.6%Reduced
State Board of Administration of Florida Retirement System54,275$20.3M0.04%+321+0.6%Added
Manufacturers Life Insurance Company, The54,295$20.3M0.02%−42,118−43.7%Reduced
Osterweis Capital Management Inc54,391$20.3M1.04%−9,829−15.3%Reduced
Raymond James & Associates56,190$21.0M0.02%+2,469+4.6%Added
Marshall Wace North America L.P.57,556$21.5M0.09%+54,586+1,837.9%Added
Capitolis Advisors LLC57,831$21.6M0.25%+57,831New
HSBC Holdings PLC58,868$22.1M0.03%+12,073+25.8%Added
Nicholas Investment Partners, LP59,819$22.3M1.40%+5,230+9.6%Added
Los Angeles Capital Management LLC63,177$23.6M0.10%−80.0%Reduced
Jag Capital Management, LLC69,101$25.8M2.02%+385+0.6%Added
National Pension Service72,924$27.2M0.05%00.0%Unchanged
Azimuth Capital Management LLC73,394$27.4M1.18%+12,041+19.6%Added
Morgan Stanley73,941$27.6M0.00%−2,028−2.7%Reduced
Eventide Asset Management, LLC77,459$28.9M0.39%+3,300+4.4%Added
Glenmede Trust Co NA77,798$29.1M0.15%+5,000+6.9%Added
California State Teachers Retirement System79,938$29.9M0.04%−1,719−2.1%Reduced
Rhumbline Advisers81,799$30.5M0.04%−4,532−5.2%Reduced
American Century Companies Inc85,187$31.8M0.02%+67,576+383.7%Added
Ameriprise Financial Inc86,698$32.2M0.01%−3,899−4.3%Reduced
Jennison Associates LLC90,258$33.7M0.02%−12,348−12.0%Reduced
Martingale Asset Management L P92,438$34.5M0.39%−51,310−35.7%Reduced
AXA S.A.94,441$35.3M0.10%+8,808+10.3%Added
Envestnet Asset Management Inc97,825$36.5M0.02%−3,849−3.8%Reduced
AQR Capital Management LLC98,485$36.8M0.06%−22,807−18.8%Reduced
Grandeur Peak Global Advisors, LLC99,821$37.3M1.78%−4,826−4.6%Reduced
California Public Employees Retirement System100,906$37.7M0.03%−2,819−2.7%Reduced
Renaissance Technologies LLC102,786$38.4M0.05%+102,786New
First Trust Advisors LP105,096$39.2M0.04%−33,524−24.2%Reduced
Segall Bryant & Hamill, LLC105,483$39.4M0.38%+15,683+17.5%Added
Loomis Sayles & Co L P107,248$40.1M0.05%−6,677−5.9%Reduced
UBS Group AG108,442$40.5M0.02%−16,794−13.4%Reduced
Epoch Investment Partners, Inc.116,634$43.6M0.23%+2,058+1.8%Added
Citigroup Inc121,954$45.5M0.04%−8,045−6.2%Reduced
CIBC Private Wealth Group, LLC125,523$46.9M0.11%−153,565−55.0%Reduced
Deutsche Bank AG125,760$47.0M0.02%+13,759+12.3%Added
Royal Bank of Canada128,245$47.9M0.01%−4,151−3.1%Reduced
Barclays PLC128,482$48.0M0.04%+16,726+15.0%Added
Parametric Portfolio Associates LLC130,638$48.8M0.03%+11,066+9.3%Added
Allianz Asset Management GmbH136,476$51.0M0.05%+75,533+123.9%Added
BNP Paribas Arbitrage, SA137,422$51.3M0.10%+37,218+37.1%Added
Principal Financial Group Inc139,547$52.1M0.03%+18,551+15.3%Added
Sumitomo Mitsui Trust Holdings, Inc.142,986$53.4M0.03%−5,690−3.8%Reduced
Rafferty Asset Management, LLC145,852$54.5M0.34%+18,195+14.3%Added
STRS Ohio146,478$54.7M0.20%−162−0.1%Reduced
UBS Asset Management Americas Inc147,882$55.2M0.02%−39,509−21.1%Reduced
Eagle Asset Management Inc148,399$55.4M0.24%−133−0.1%Reduced
Cavalry Management Group, LLC151,102$56.4M6.51%−25,749−14.6%Reduced
Dimensional Fund Advisors LP151,942$56.7M0.02%−7,833−4.9%Reduced
Swiss National Bank175,389$65.5M0.04%+10,589+6.4%Added
Thrivent Financial for Lutherans180,667$67.5M0.14%+1,516+0.8%Added
Wellington Management Group LLP199,371$74.5M0.01%−98,376−33.0%Reduced
DekaBank Deutsche Girozentrale202,005$75.3M0.22%+71,099+54.3%Added
Ardevora Asset Management LLP202,763$75.7M0.95%+53,966+36.3%Added
Geneva Capital Management LLC202,918$75.8M1.23%−2,348−1.1%Reduced
Victory Capital Management Inc203,505$76.0M0.07%+29,956+17.3%Added
Goldman Sachs Group Inc206,293$77.0M0.02%+2,926+1.4%Added
New York State Common Retirement Fund207,962$77.7M0.08%+606+0.3%Added
TD Asset Management Inc184,441$82.9M0.08%+34,310+22.9%Added
FMR LLC233,217$87.1M0.01%−135,453−36.7%Reduced
Baird Financial Group, Inc.238,310$89.0M0.23%−73,345−23.5%Reduced
Ensign Peak Advisors, Inc238,997$89.3M0.18%+29,561+14.1%Added
TimesSquare Capital Management, LLC258,825$96.7M0.79%+33,525+14.9%Added
Robeco Schweiz AG265,977$99.3M1.38%−25,562−8.8%Reduced