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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, Q1 2024

Institutional positions in Monolithic Power Systems, Inc. as of Mar 31, 2024. 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
807
+75 vs. Q4 2023
Shares held
46.0M
+604.0K (+1.3%) vs. Q4 2023
Total value
$31.2B
+$2.52B (+8.8%) vs. Q4 2023
New holders
129
305 more added
Sold out
54
273 more reduced

5 institutions that held it in Q4 2023 haven't filed for Q1 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q4 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 holdersQ1 2024: 807 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 heldQ1 2024: $31.2B
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, Q1 2024

Shares, value and share of portfolio for each institution holding Monolithic Power Systems, Inc.; share changes are against Q4 2023.

Institutions holding MPWR in Q1 2024
InstitutionSharesValue% of portfolioChange in sharesAction
New York State Teachers Retirement System42,094$28.5M0.06%+148+0.4%Added
Adage Capital Partners GP, L.L.C.42,100$28.5M0.05%−4,400−9.5%Reduced
Los Angeles Capital Management LLC43,353$29.4M0.10%+38,334+763.8%Added
RMB Capital Management, LLC44,536$30.2M0.69%−3,171−6.6%Reduced
Manufacturers Life Insurance Company, The45,315$30.7M0.03%−14,698−24.5%Reduced
Sapient Capital LLC45,595$30.9M0.69%−42−0.1%Reduced
D. E. Shaw & Co., Inc.46,522$31.5M0.04%+19,108+69.7%Added
Rokos Capital Management LLP47,329$32.0M0.82%−63,492−57.3%Reduced
CI Private Wealth, LLC48,083$32.6M0.06%−403−0.8%Reduced
Credit Suisse AG49,197$33.3M0.03%+3,288+7.2%Added
Susquehanna International Group, LLP49,720$33.7M0.05%+7,856+18.8%Added
Voloridge Investment Management, LLC50,154$34.0M0.12%+50,154New
Wasatch Advisors Inc51,593$35.0M0.18%−221,236−81.1%Reduced
Pembroke Management, LTD51,828$35.1M4.13%−3,069−5.6%Reduced
Bank of Montreal51,901$35.5M0.02%+8,926+20.8%Added
Zevenbergen Capital Investments LLC52,868$35.8M0.76%−250−0.5%Reduced
Mirae Asset Global Investments Co., Ltd.54,662$36.1M0.08%+8,725+19.0%Added
Analog Century Management LP55,095$37.3M5.21%+20,402+58.8%Added
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.55,480$37.6M0.05%+9,125+19.7%Added
Raymond James & Associates59,800$40.5M0.03%−12,819−17.7%Reduced
Wells Fargo & Company59,988$40.6M0.01%−12,579−17.3%Reduced
Amundi66,652$41.3M0.02%+4,958+8.0%Added
Twinbeech Capital LP61,453$41.6M0.86%+61,453New
AQR Capital Management LLC61,661$41.7M0.07%+18,463+42.7%Added
National Pension Service66,299$44.9M0.05%−3,836−5.5%Reduced
Natixis Investment Managers International68,455$46.4M3.16%−1,895−2.7%Reduced
Healthcare of Ontario Pension Plan Trust Fund68,663$46.5M0.16%+54,961+401.1%Added
Resona Asset Management Co.,Ltd.71,508$48.4M0.29%+71,508New
Worldquant Millennium Advisors LLC72,457$49.1M0.61%+72,457New
California State Teachers Retirement System73,211$49.6M0.06%+2,999+4.3%Added
Victory Capital Management Inc80,394$54.5M0.05%−42,541−34.6%Reduced
California Public Employees Retirement System81,130$55.0M0.04%−1,647−2.0%Reduced
EULAV Asset Management84,674$57.4M1.58%+15,363+22.2%Added
LPL Financial LLC86,223$58.4M0.03%+4,885+6.0%Added
DF Dent & Co Inc87,745$59.4M0.73%+220.0%Added
SG Americas Securities, LLC93,101$63.1M0.32%+84,253+952.2%Added
Grandeur Peak Global Advisors, LLC94,911$64.3M5.11%−15,558−14.1%Reduced
First Trust Advisors LP98,091$66.4M0.07%+65,173+198.0%Added
Eventide Asset Management, LLC98,569$66.8M1.05%+236+0.2%Added
TimesSquare Capital Management, LLC100,904$68.4M0.99%−6,620−6.2%Reduced
HSBC Holdings PLC104,294$70.6M0.05%+16,632+19.0%Added
STRS Ohio105,004$71.1M0.28%−15,092−12.6%Reduced
Rhumbline Advisers112,587$76.3M0.07%+2,253+2.0%Added
Sumitomo Mitsui Trust Holdings, Inc.115,098$78.0M0.05%+5,335+4.9%Added
Polar Capital Holdings Plc115,166$78.0M0.47%−105,053−47.7%Reduced
Deutsche Bank AG118,487$80.3M0.04%+8,100+7.3%Added
Royal Bank of Canada118,510$80.3M0.02%+12,456+11.7%Added
Ameriprise Financial Inc126,261$85.5M0.02%−13,800−9.9%Reduced
Principal Financial Group Inc129,743$87.9M0.05%−12,260−8.6%Reduced
Frontier Capital Management Co LLC136,149$92.2M0.86%−59,876−30.5%Reduced
Swiss National Bank143,500$97.2M0.07%+1,500+1.1%Added
CIBC Private Wealth Group, LLC146,484$97.9M0.19%+30,297+26.1%Added
Dimensional Fund Advisors LP148,807$100.8M0.03%−845−0.6%Reduced
Ensign Peak Advisors, Inc158,316$107.2M0.20%−16,998−9.7%Reduced
Millennium Management LLC159,608$108.1M0.09%+156,398+4,872.2%Added
Baird Financial Group, Inc.160,128$108.5M0.23%+2,680+1.7%Added
Neuberger Berman Group LLC160,597$108.8M0.09%−3,735−2.3%Reduced
Lord, Abbett & Co. LLC163,546$110.8M0.36%−2,529−1.5%Reduced
Envestnet Asset Management Inc165,847$112.3M0.04%−1,061−0.6%Reduced
UBS Group AG168,535$114.2M0.04%−25,751−13.3%Reduced
Natixis Advisors, L.P.171,360$116.1M0.27%+15,582+10.0%Added
DekaBank Deutsche Girozentrale190,045$127.4M0.24%−14,591−7.1%Reduced
Nuveen Asset Management, LLC197,785$134.0M0.04%−82,564−29.5%Reduced
UBS Asset Management Americas Inc199,469$135.1M0.05%+8,717+4.6%Added
Eagle Asset Management Inc204,732$136.9M0.69%−43,715−17.6%Reduced
Robeco Schweiz AG225,917$153.0M2.67%−24,455−9.8%Reduced
American Century Companies Inc234,246$158.7M0.10%−45,373−16.2%Reduced
Voya Investment Management LLC236,250$160.0M0.16%−36,329−13.3%Reduced
Allspring Global Investments Holdings, LLC237,861$161.1M0.25%−35,323−12.9%Reduced
Kayne Anderson Rudnick Investment Management LLC241,422$163.5M0.38%+25,197+11.7%Added
Impax Asset Management Group plc243,682$164.2M0.63%−57,977−19.2%Reduced
Citigroup Inc248,316$168.2M0.18%+130,952+111.6%Added
Congress Asset Management Co251,154$170.1M1.21%−4,706−1.8%Reduced
SEI Investments Co252,025$170.7M0.25%−13,308−5.0%Reduced
Pictet Asset Management Holding SA253,433$171.6M0.19%−1,915−0.7%Reduced
Legal & General Group Plc255,474$173.1M0.05%−1,131−0.4%Reduced
Qube Research & Technologies Ltd260,948$176.8M0.32%+247,322+1,815.1%Added
Earnest Partners LLC290,876$197.0M0.90%+14,327+5.2%Added
Alliancebernstein L.P.293,573$198.9M0.07%−33,659−10.3%Reduced
Charles Schwab Investment Management Inc294,315$199.4M0.05%+8,059+2.8%Added
BNP Paribas Arbitrage, SA305,146$206.7M0.25%+148,771+95.1%Added
Barclays PLC313,766$212.6M0.10%+29,610+10.4%Added
Van Eck Associates Corp321,174$217.6M0.33%+74,287+30.1%Added
Clearbridge Investments, LLC325,750$220.7M0.17%−64,286−16.5%Reduced
Bank of New York Mellon Corp332,115$225.0M0.04%−7,284−2.1%Reduced
Artisan Partners Limited Partnership387,206$262.3M0.38%−322,744−45.5%Reduced
Goldman Sachs Group Inc411,619$278.8M0.06%+47,470+13.0%Added
Rafferty Asset Management, LLC425,558$288.3M1.08%+120,606+39.5%Added
Northern Trust Corp432,208$292.8M0.05%−13,899−3.1%Reduced
Macquarie Group Ltd446,397$302.4M0.34%−7,740−1.7%Reduced
Vaughan Nelson Investment Management, L.P.483,812$327.7M2.88%+22,725+4.9%Added
Morgan Stanley493,163$334.1M0.03%+80,854+19.6%Added
Capital Research Global Investors527,396$357.3M0.08%−88,784−14.4%Reduced
Norges Bank629,965$426.8M0.07%+55,316+9.6%Added
Bank of America Corp806,017$546.0M0.05%+197,714+32.5%Added
Wellington Management Group LLP953,637$646.0M0.11%+14,718+1.6%Added
Massachusetts Financial Services Co985,041$667.3M0.20%−71,142−6.7%Reduced
JPMorgan Chase & Co985,145$667.4M0.06%−239,617−19.6%Reduced
Brown Advisory Inc1,036,783$702.3M0.94%+8,316+0.8%Added
Geode Capital Management, LLC1,147,875$775.6M0.07%+51,365+4.7%Added