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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, Q2 2026

Institutional positions in Monolithic Power Systems, Inc. as of Jun 30, 2026. 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
1,250
+142 vs. Q1 2026
Shares held
47.6M
+386.8K (+0.8%) vs. Q1 2026
Total value
$65.6B
+$14.1B (+27.4%) vs. Q1 2026
New holders
220
419 more added
Sold out
78
464 more reduced

16 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2026: 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 2026: 1,250 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 2026: $65.6B
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, Q2 2026

Shares, value and share of portfolio for each institution holding Monolithic Power Systems, Inc.; share changes are against Q1 2026.

Institutions holding MPWR in Q2 2026
InstitutionSharesValue% of portfolioChange in sharesAction
Owl Creek Wealth Partners LLC71$98.1K0.03%00.0%Unchanged
EFG International AG75$103.7K0.00%+75New
Action Point Financial Planning, LLC81$108.0K0.01%+81New
Contravisory Investment Management, Inc.79$109.2K0.02%−6−7.1%Reduced
Strategic Investment Advisors80$110.5K0.01%+80New
Trust Co of Toledo NA84$116.1K0.01%+28+50.0%Added
Evelyn Partners Group Ltd84$116.1K0.00%+84New
Bradley & Co. Private Wealth Management, LLC85$117.7K0.06%00.0%Unchanged
Hollencrest Capital Management88$121.6K0.01%+88New
Towarzystwo Funduszy Inwestycyjnych Pzu SA92$127.2K0.04%+10+12.2%Added
Zions Bancorporation, National Association94$129.9K0.01%−39−29.3%Reduced
IFP Advisors, Inc98$135.5K0.00%−6−5.8%Reduced
Pier 88 Investment Partners LLC100$138.2K0.03%−1,100−91.7%Reduced
Eastern Bank100$138.2K0.00%+100New
Rossby Financial, LCC101$139.6K0.03%+37+57.8%Added
First Horizon Corp103$142.4K0.01%+28+37.3%Added
Reyes Financial Architecture, Inc.104$143.8K0.08%−25−19.4%Reduced
YANKCOM Partnership114$157.6K0.06%−59−34.1%Reduced
Harbour Investments, Inc.115$158.4K0.00%+22+23.7%Added
Union Bancaire Privee, UBP SA122$160.2K0.00%+122New
Wilkerson Advisory Group LLC117$161.7K0.05%−30−20.4%Reduced
Montag A & Associates Inc119$164.7K0.01%−11−8.5%Reduced
Essex Investment Management Co LLC120$165.9K0.02%00.0%Unchanged
Avalon Trust Co125$172.8K0.01%00.0%Unchanged
Onefund, LLC132$182.5K0.10%+2+1.5%Added
Basecamp Wealth Advisors LLC134$185.3K0.03%00.0%Unchanged
Aventura Private Wealth, LLC140$193.0K0.06%−2−1.4%Reduced
Trust Co of Vermont140$193.5K0.01%+140New
Virtus ETF Advisers LLC143$197.7K0.08%−32−18.3%Reduced
Cromwell Holdings LLC143$198.0K0.09%00.0%Unchanged
Park Place Capital Corp144$199.1K0.03%+6+4.3%Added
Werba Rubin Papier Wealth Management145$200.4K0.02%+145New
Roman Butler Fullerton & Co156$201.5K0.05%+1+0.6%Added
Chicago Capital, LLC146$201.8K0.00%+146New
Capital Analysts, LLC147$203.0K0.00%+1+0.7%Added
Boston Private Wealth LLC149$205.3K0.01%+149New
Alliance Wealth Advisors, LLC149$206.0K0.04%−38−20.3%Reduced
Wall Street Access Asset Management, LLC150$207.4K0.03%+150New
Johnson Financial Group, LLC150$207.4K0.01%+150New
NLB Skladi, upravljanje premozenja, d.o.o.150$207.4K0.01%+150New
Consilio Wealth Advisors, LLC150$207.4K0.05%+150New
Optivise Advisory Services LLC151$208.5K0.11%+151New
University of Texas/Texas Am Investment Managment Co152$210.1K0.02%+152New
Sustainable Insight Capital Management, LLC152$210.1K0.09%−70−31.5%Reduced
Peak Financial Advisors LLC152$210.1K0.09%+152New
Purkiss Capital Advisors LLC152$210.1K0.08%+152New
ProVise Management Group, LLC153$211.5K0.01%+153New
Fiduciary Family Office, LLC154$212.9K0.05%+154New
FSM Wealth Advisors, LLC154$213.1K0.02%+154New
BCJ Capital Management, LLC156$215.6K0.01%+156New
Everhart Financial Group, Inc.156$215.6K0.01%+156New
Wallace Advisory Group, LLC156$215.6K0.20%+156New
Mirabella Financial Services LLP157$217.0K0.02%−2,798−94.7%Reduced
Sepio Capital, LP157$217.0K0.01%−36−18.7%Reduced
Csenge Advisory Group157$217.1K0.01%−44−21.9%Reduced
Quent Capital, LLC157$217.4K0.01%+25+18.9%Added
Compass Financial Management LLC158$218.3K0.03%+158New
Essex Savings Bank158$218.4K0.05%+158New
Summit Creek Advisors LLC158$218.4K0.07%−78−33.1%Reduced
Tactive Advisors, LLC158$218.4K0.05%+158New
Advisory Advocates, LLC158$218.4K0.19%+158New
First Washington CORP159$219.8K0.05%+159New
Corundum Group, Inc.160$221.2K0.07%−77−32.5%Reduced
WealthTrust Asset Management, LLC161$222.6K0.12%+161New
Fidelis Capital Partners, LLC162$223.9K0.01%−74−31.4%Reduced
Aptus Capital Advisors, LLC162$223.9K0.00%+162New
Impact Capital Partners LLC162$223.9K0.06%+162New
Beverly Hills Private Wealth, LLC162$224.2K0.04%−247−60.4%Reduced
J. M. Brown & Associates Inc.164$226.7K0.13%+164New
Rothschild Investment LLC164$226.9K0.01%00.0%Unchanged
Meridian Wealth Advisors, LLC165$228.1K0.03%+165New
Defiance ETFs, LLC172$229.1K0.00%+172New
Capital CS Group, LLC166$229.5K0.33%+166New
Foster Group, Inc.168$232.4K0.01%+168New
Eurizon SLJ Capital Ltd170$235.0K0.09%−3,814−95.7%Reduced
Matrix Private Capital Group LLC171$236.7K0.10%+171New
Hoxton Planning & Management, LLC172$237.8K0.06%+172New
55 North Private Wealth, LLC172$237.8K0.05%+172New
Claret Asset Management Corp173$239.0K0.03%+173New
Nilsine Partners, LLC173$239.1K0.02%−4−2.3%Reduced
Gardner Lewis Asset Management L P173$239.1K0.05%−56−24.5%Reduced
Graetz Wealth LLC173$239.7K0.19%−45−20.6%Reduced
TownSquare Capital, LLC174$240.5K0.04%−41−19.1%Reduced
Ponta Wealth Partners, LLC174$240.5K0.13%+174New
Dynamic Advisor Solutions LLC174$240.6K0.01%+174New
Bradley Foster & Sargent Inc175$241.9K0.00%+175New
Wealth Management Partners, LLC175$241.9K0.06%+175New
SLT Holdings LLC175$241.9K0.15%+175New
Capital Investment Advisors, LLC175$241.9K0.00%+175New
Pure Financial Advisors, Inc.176$242.6K0.00%−12−6.4%Reduced
Avidian Wealth Solutions, LLC177$244.9K0.01%+177New
Fisher Asset Management, LLC177$245.5K0.00%−35−16.5%Reduced
Donaldson Capital Management, LLC178$246.1K0.01%+178New
Occidental Asset Management, LLC178$246.1K0.02%+178New
Klingman & Associates, LLC178$246.1K0.01%+178New
Range Advisory, LLC179$247.2K0.03%+179New
Summit Financial, LLC179$247.9K0.00%+179New
Dana Investment Advisors, Inc.182$251.6K0.01%+182New
Childress Capital Advisors, LLC183$252.7K0.04%−16−8.0%Reduced
Invera Wealth Advisors, LLC183$253.0K0.14%00.0%Unchanged