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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.

Q3 2025 vs. Q2 2025

How the institutions holding Monolithic Power Systems, Inc. changed between Q2 2025 and Q3 2025.

All holders in Q3 2025All holders in Q2 2025

13F holders of MPWR: Q2 2025 compared with Q3 2025
MeasureQ2 2025Of which not filed for Q3 2025Q3 2025Change
Holders90715981+89
Shares47.4M632.5K46.8M+118.5K (+0.3%)
Value$34.6B$462.6M$43.0B+$8.79B (+25.7%)

15 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (164)

Institutions that held Monolithic Power Systems, Inc. at the end of Q3 2025 but not at the end of Q2 2025.

Showing the largest 100 of 164 by value.

Institutions new to MPWR in Q3 2025
InstitutionSharesValue% of portfolio
Marshall Wace, LLP132,145$121.7M0.13%
AXA Investment Managers S.A.115,618$106.4M0.29%
Analog Century Management LP77,591$71.4M3.84%
HRT Financial LP65,877$60.6M0.22%
Holocene Advisors, LP51,171$47.1M0.11%
Rakuten Investment Management, Inc.214,264$35.1M0.14%
NZS Capital, LLC26,000$23.9M0.73%
Lord, Abbett & Co. LLC23,500$21.6M0.06%
Credit Agricole S A16,059$14.8M0.05%
Stanley-Laman Group, Ltd.9,235$8.50M1.22%
Balyasny Asset Management LLC9,159$8.43M0.02%
Renaissance Technologies LLC8,086$7.44M0.01%
CIBC Bancorp USA Inc.6,607$6.08M0.04%
Concentric Capital Strategies, LP5,559$5.12M0.24%
Mitchell Capital Management Co5,549$5.11M0.87%
CCM Investment Advisers LLC4,912$4.52M0.45%
Quantessence Capital LLC4,344$4.00M1.27%
Empirical Financial Services, LLC d.b.a. Empirical Wealth Management4,177$3.85M0.08%
Groupe la Francaise4,009$3.69M0.05%
Argent Capital Management LLC4,003$3.69M0.10%
Rational Advisors LLC3,900$3.59M0.36%
Coppell Advisory Solutions LLC3,706$3.29M0.36%
Hudson Bay Capital Management LP3,338$3.07M0.02%
First National Advisers, LLC3,063$2.82M0.38%
Triasima Portfolio Management inc.2,930$2.70M0.41%
First National Bank of Omaha2,787$2.57M0.16%
Sunpointe, LLC2,662$2.45M0.89%
Rockefeller Capital Management L.P.2,319$2.14M0.00%
Jefferies Financial Group Inc.2,246$2.07M0.02%
RDA Financial Network2,090$1.92M0.47%
CAPROCK Group, Inc.2,013$1.68M0.04%
Allstate Corp1,726$1.59M0.04%
Empirical Asset Management, LLC1,692$1.56M0.43%
Optimize Financial Inc1,595$1.47M0.76%
AIA Group Ltd1,585$1.46M0.03%
Winton Group Ltd1,575$1.45M0.05%
WBI Investments1,567$1.44M0.37%
Sheets Smith Investment Management1,451$1.34M0.87%
Grantham, Mayo, Van Otterloo & Co. LLC1,408$1.30M0.00%
Tema ETFs LLC1,285$1.18M0.10%
Baader Bank INC1,283$1.18M0.10%
AE Wealth Management LLC1,217$1.12M0.01%
Winnow Wealth LLC1,116$1.03M0.80%
Bayesian Capital Management, LP1,100$1.01M0.21%
K.J. Harrison & Partners Inc1,000$930.5K0.13%
Bridgefront Capital, LLC1,001$921.6K0.27%
CTC Alternative Strategies, Ltd.974$896.7K1.49%
First National Bank of Hutchinson937$862.6K0.46%
Brookstone Capital Management932$857.8K0.01%
Drake & Associates, LLC781$781.1K0.16%
Left Brain Wealth Management, LLC770$708.9K0.22%
SummitTX Capital, L.P.700$644.4K0.03%
Summit Wealth Group LLC1,366$631.0K0.09%
Financial Consulate, Inc639$588.3K0.08%
Arkadios Wealth Advisors624$574.8K0.01%
iA Global Asset Management Inc.600$552.0K0.01%
Kingswood Wealth Advisors, LLC580$534.0K0.03%
Cookson Peirce & Co Inc545$501.7K0.02%
Calamos Wealth Management LLC542$499.0K0.02%
Three Seasons Wealth, LLC509$468.6K0.05%
Morningstar Investment Management LLC508$468.0K0.02%
Mutual Advisors, LLC390$417.6K0.01%
Yarbrough Capital, LLC418$384.8K0.01%
Total Clarity Wealth Management, Inc.417$383.9K0.10%
FineMark National Bank & Trust414$381.1K0.01%
Tributary Capital Management, LLC405$372.9K0.03%
Optas, LLC373$343.4K0.06%
Avestar Capital, LLC354$325.9K0.02%
Turtle Creek Wealth Advisors, LLC341$313.9K0.03%
BAM Wealth Management, LLC335$308.4K0.24%
Camden Capital, LLC317$292.1K0.02%
Phoenix Holdings Ltd.310$285.5K0.00%
BIP Wealth, LLC309$284.5K0.01%
Prakash Investment Advisors LLC300$276.2K0.20%
Flow Traders U.S. LLC292$269.0K0.01%
Dearborn Partners LLC290$267.0K0.01%
Financiere des Professionnels - Fonds d,investissement inc.283$260.5K0.02%
Fieldview Capital Management, LLC283$260.5K0.04%
Atom Investors LP271$249.5K0.02%
Pallas Capital Advisors LLC271$249.2K0.01%
Pure Financial Advisors, Inc.269$247.7K0.00%
Howard Capital Management Inc.269$247.7K0.00%
Shelton Capital Management267$245.8K0.01%
Alta Advisers Ltd265$244.0K0.07%
Sonoma Allocations LLC233$240.0K0.09%
AlTi Global, Inc.256$236.1K0.01%
Maridea Wealth Management LLC229$236.0K0.04%
Naviter Wealth, LLC254$234.2K0.03%
Gladstone Institutional Advisory LLC254$233.8K0.01%
Tradition Wealth Management, LLC253$232.9K0.02%
MOKAN Wealth Management Inc.248$229.3K0.12%
Miracle Mile Advisors, LLC246$226.7K0.00%
Sustainable Insight Capital Management, LLC244$224.6K0.07%
Simplicity Wealth,LLC243$224.1K0.01%
Resonant Capital Advisors, LLC243$224.1K0.01%
180 Wealth Advisors, LLC242$222.8K0.03%
Conning Inc.241$221.9K0.01%
PDS Planning, Inc238$219.1K0.02%
Bridgewater Advisors Inc.227$217.5K0.02%
TCG Advisory Services, LLC236$217.3K0.01%

Sold out (75)

Institutions that held Monolithic Power Systems, Inc. at the end of Q2 2025 and filed for Q3 2025 without it.

Institutions that sold out of MPWR in Q3 2025
InstitutionShares, Q2 2025Value, Q2 2025
Rokos Capital Management LLP121,436$88.8M
AXA S.A.104,584$76.5M
Twinbeech Capital LP48,016$35.1M
Capital Fund Management S.A.30,545$22.3M
Davidson Kempner Capital Management LP20,000$14.6M
Meridiem Capital Partners LP15,100$11.0M
Engineers Gate Manager LP13,044$9.54M
ICICI Prudential Asset Management Co Ltd12,877$9.42M
Greenland Capital Management LP9,517$6.96M
Woodline Partners LP8,541$6.25M
Polar Asset Management Partners Inc.7,290$5.33M
Edgestream Partners, L.P.7,183$5.25M
Mirabaud Asset Management Ltd5,627$4.14M
Arrowstreet Capital, Limited Partnership5,177$3.79M
Burr Financial Services, LLC4,660$3.41M
Jump Financial, LLC4,289$3.14M
Hel Ved Capital Management Ltd4,000$2.93M
XTX Topco Ltd3,298$2.41M
Versor Investments LP2,993$2.19M
Jackson Wealth Management, LLC2,930$2.14M
Twin Tree Management, LP2,291$1.68M
Illinois Municipal Retirement Fund2,064$1.51M
Mach-1 Financial Group, Inc.1,969$1.44M
Redwood Investment Management, LLC1,853$1.35M
Erste Asset Management GmbH1,818$1.34M
Scientech Research LLC1,141$834.5K
Two Sigma Securities, LLC1,063$777.5K
Inceptionr LLC1,043$762.8K
Freestone Grove Partners LP981$717.5K
Ieq Capital, LLC890$650.6K
Comgest Global Investors S.A.S.816$596.8K
Hershey Financial Advisers, LLC810$592.5K
CenterBook Partners LP769$562.4K
V-Square Quantitative Management LLC731$534.6K
Mount Yale Investment Advisors, LLC689$504.2K
Milestone Asset Management, LLC668$488.6K
AdvisorShares Investments LLC640$468.1K
Financial Advocates Investment Management620$453.4K
ICONIQ Capital, LLC460$336.4K
MBB Public Markets I LLC426$311.6K
Royal Fund Management, LLC402$294.0K
Foundations Investment Advisors, LLC395$289.0K
Kathmere Capital Management, LLC390$285.2K
Principal Street Partners, LLC376$275.0K
Beacon Pointe Advisors, LLC350$256.0K
Graham Capital Management, L.P.314$229.7K
SLT Holdings LLC305$223.1K
Stephens Inc298$218.0K
111 Capital276$201.9K
Gitterman Wealth Management, LLC245$179.2K
Thurston, Springer, Miller, Herd & Titak, Inc.224$163.8K
Pension & Wealth Management Advisors, Inc.158$116.1K
Kestra Investment Management, LLC177$102.7K
GeoWealth Management, LLC137$100.2K
Opal Wealth Advisors, LLC90$65.8K
West Oak Capital, LLC55$40.2K
Optiver Holding B.V.51$37.3K
Strategic Investment Solutions, Inc.49$35.8K
Sierra Ocean, LLC48$35.2K
NewSquare Capital LLC44$32.2K
Twin Peaks Wealth Advisors, LLC18$15.1K
Barnes Dennig Private Wealth Management LLC20$14.6K
Riggs Asset Managment Co. Inc.15$11.0K
WealthTrak Capital Management LLC9$6.58K
Beacon Capital Management, LLC8$5.88K
Total Investment Management Inc7$5.12K
Whipplewood Advisors, LLC6$4.39K
Smithfield Trust Co5$4.00K
Garde Capital, Inc.5$3.66K
Cary Street Partners Financial LLC4$2.93K
Plante Moran Financial Advisors, LLC2$1.46K
Smallwood Wealth Investment Management, LLC2$1.46K
Stephens Consulting, LLC1$732
Horizon Financial Services, LLC1$731
Pinpoint Asset Management (Singapore) Pte. Ltd.1$731

Not filed for Q3 2025 yet (15)

Institutions that held Monolithic Power Systems, Inc. at the end of Q2 2025 and haven't filed a 13F for Q3 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding MPWR in Q2 2025 that haven't filed for Q3 2025
InstitutionShares, Q2 2025Value, Q2 2025
Norges Bank598,887$438.0M
Congress Wealth Management LLC16,227$11.9M
CIBC World Markets Corp6,023$4.41M
Avantax Advisory Services, Inc.3,386$2.48M
Scott Marsh Financial, LLC2,468$1.81M
SRN Advisors, LLC1,953$1.43M
Atria Wealth Solutions, Inc.1,290$945.5K
E Fund Management Co., Ltd.922$674.3K
Graypoint LLC537$392.8K
EP Wealth Advisors, LLC516$377.6K
First Horizon Advisors, Inc.256$187.5K
Talon Private Wealth, LLC42$30.7K
Centricity Wealth Management, LLC26$19.0K
Legacy Investment Solutions, LLC6$4.39K
Parkworth Wealth Management, Inc.2$1.46K