Skip to main content
Livermore
Livermore
ZHEN

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.

Q4 2025 vs. Q3 2025

How the institutions holding Monolithic Power Systems, Inc. changed between Q3 2025 and Q4 2025.

All holders in Q4 2025All holders in Q3 2025

13F holders of MPWR: Q3 2025 compared with Q4 2025
MeasureQ3 2025Of which not filed for Q4 2025Q4 2025Change
Holders981181,061+98
Shares46.8M188.8K48.8M+2.18M (+4.7%)
Value$43.0B$173.8M$44.2B+$1.40B (+3.3%)

18 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (190)

Institutions that held Monolithic Power Systems, Inc. at the end of Q4 2025 but not at the end of Q3 2025.

Showing the largest 100 of 190 by value.

Institutions new to MPWR in Q4 2025
InstitutionSharesValue% of portfolio
Norges Bank726,705$658.7M0.07%
Nomura Asset Management International Inc.165,234$149.8M0.23%
Meridiem Capital Partners LP42,723$38.7M2.43%
PFA Pension, Forsikringsaktieselskab31,314$28.9M0.08%
CIBC World Markets Corp31,321$28.4M0.14%
Pinnacle Financial Partners, Inc.29,972$27.2M0.21%
Alyeska Investment Group, L.P.21,578$19.6M0.06%
Glenmede Trust Co NA20,799$18.9M0.09%
Sora Investors LLC14,771$13.4M1.15%
Cornerstone Advisors, LLC14,692$13.3M0.44%
Stephens Investment Management Group LLC11,836$10.7M0.14%
FNY Investment Advisers, LLC10,500$9.52M2.72%
Generate Investment Management Ltd10,331$9.36M0.43%
GF Fund Management Co. Ltd.10,105$9.16M0.16%
Eurizon Capital SGR S.p.A.10,029$9.09M0.03%
Titan Investment Solutions Ltd9,710$8.80M1.06%
PensionDanmark Pensionsforsikringsaktieselskab8,250$7.48M0.07%
Benjamin Edwards Inc7,772$7.04M0.08%
Freestone Grove Partners LP7,529$6.82M0.05%
Eurizon SLJ Capital Ltd5,668$5.14M2.04%
Jump Financial, LLC4,445$4.03M0.05%
Brasada Capital Management, LP3,939$3.69M0.63%
Mirabaud Asset Management Ltd4,881$3.41M1.64%
Greenland Capital Management LP3,739$3.39M0.49%
Pinkerton Retirement Specialists, LLC3,666$3.32M0.34%
Neo Ivy Capital Management3,515$3.19M0.50%
Evolve Private Wealth, LLC3,314$3.01M0.18%
Polymer Capital Management (HK) LTD3,222$2.92M0.45%
Fideuram - Intesa Sanpaolo Private Banking S.P.A.3,184$2.89M0.10%
Fideuram Asset Management (Ireland) dac4,395$2.81M0.23%
Bridgewater Associates, LP2,871$2.60M0.01%
Night Squared LP2,707$2.45M0.69%
Woodline Partners LP2,640$2.39M0.01%
Ketron Financial2,616$2.37M0.79%
Osmosis Investment Management UK Ltd2,473$2.24M0.06%
BLI - Banque de Luxembourg Investments2,200$2.03M0.06%
Sherman Porfolios, LLC2,145$1.94M0.13%
XTX Topco Ltd2,025$1.84M0.05%
Worthington Financial Partners, LLC1,902$1.72M1.53%
Two Sigma Securities, LLC1,884$1.71M0.23%
Catalyst Capital Advisors LLC1,800$1.63M0.03%
Virtus Investment Advisers, Inc.1,755$1.59M0.43%
North Dakota State Investment Board1,586$1.44M0.05%
Pinebridge Investments LLC1,578$1.43M0.01%
Bridgeway Capital Management, LLC1,530$1.39M0.03%
PKO Investment Management Joint-Stock Co1,500$1.36M0.11%
Laird Norton Trust Company, LLC1,489$1.35M0.03%
Kovack Advisors, Inc.1,453$1.32M0.06%
Keating Financial Advisory Services, Inc.1,445$1.31M0.18%
Forty-three Eighteen Advisors, LLC1,433$1.30M1.01%
Mitsubishi UFJ Morgan Stanley Securities Co., Ltd.1,416$1.28M2.02%
Stance Capital LLC1,416$1.28M0.47%
China Universal Asset Management Co., Ltd.1,356$1.23M0.09%
Ducere Wealth Management LLC1,345$1.22M0.47%
Scientech Research LLC1,208$1.09M0.69%
Point Nemo Capital, LLC1,198$1.09M1.08%
Pitcairn Wealth Advisors LLC1,189$1.08M0.10%
ING Groep NV1,077$976.1K0.01%
Prospera Financial Services Inc1,048$950.3K0.02%
CFC Planning Co LLC1,006$911.8K0.70%
Picton Mahoney Asset Management981$889.1K0.01%
Dynamic Technology Lab Private Ltd980$888.0K0.20%
Triad Wealth Partners, LLC974$882.8K0.08%
Frec Markets, Inc.955$866.1K0.25%
Mach-1 Financial Group, Inc.938$850.2K0.17%
CIBC World Markets Inc.860$779.5K0.00%
Peak Financial Advisors LLC789$715.1K0.32%
Odyssean, LLC783$709.7K0.51%
ICICI Prudential Asset Management Co Ltd768$696.1K0.08%
Virtu Financial LLC746$676.0K0.03%
TCW Group Inc719$651.7K0.00%
Farringdon Capital, Ltd.682$618.1K0.15%
LRT Capital Management, LLC663$600.9K0.51%
Stephens Inc642$581.9K0.01%
Quantitative Investment Management, LLC627$568.0K0.06%
Blueshift Asset Management, LLC614$556.5K0.16%
Wiregrass Investment Management LLC606$549.4K0.46%
WESPAC Advisors, LLC601$544.7K0.30%
Laurion Capital Management LP600$543.8K0.04%
V-Square Quantitative Management LLC572$518.4K0.05%
Jacobs Levy Equity Management, Inc560$507.6K0.00%
Vision Retirement, LLC545$493.9K0.13%
Buffalo Business & Estate Services Ltd539$488.5K0.07%
Foundations Investment Advisors, LLC523$474.3K0.01%
AdvisorShares Investments LLC520$471.3K0.08%
111 Capital506$458.6K0.10%
EFG International AG504$456.8K0.01%
Fox Run Management, L.L.C.458$415.1K0.06%
Mirabella Financial Services LLP427$387.0K0.04%
Yeomans Consulting Group, Inc.411$372.5K0.11%
Journey Retirement Planning & Investment Management LLC405$367.3K0.08%
Twin Capital Management Inc403$365.3K0.05%
EP Wealth Advisors, LLC392$355.2K0.00%
Krilogy Financial LLC324$346.1K0.01%
Beacon Pointe Advisors, LLC381$345.3K0.00%
Oakmont Advisory Group, LLC376$341.1K0.36%
Excelsior Advisor Network LLC364$329.9K0.16%
OneAscent Investment Solutions LLC348$315.4K0.33%
Frank, Rimerman Advisors LLC343$310.9K0.02%
71 West Capital Partners343$310.9K0.01%

Sold out (92)

Institutions that held Monolithic Power Systems, Inc. at the end of Q3 2025 and filed for Q4 2025 without it.

Institutions that sold out of MPWR in Q4 2025
InstitutionShares, Q3 2025Value, Q3 2025
Marshall Wace, LLP132,145$121.7M
HRT Financial LP65,877$60.6M
Holocene Advisors, LP51,171$47.1M
Achmea Investment Management B.V.12,808$11.8M
IFM Investors Pty Ltd9,175$8.14M
Renaissance Technologies LLC8,086$7.44M
Empowered Funds, LLC7,936$7.31M
Concentric Capital Strategies, LP5,559$5.12M
Quantessence Capital LLC4,344$4.00M
Rational Advisors LLC3,900$3.59M
Motley Fool Asset Management LLC3,757$3.46M
Hudson Bay Capital Management LP3,338$3.07M
Catalyst Funds Management Pty Ltd3,175$2.92M
Intech Investment Management LLC2,336$2.15M
Boston Partners2,251$2.07M
Ossiam2,250$2.07M
Perpetual Ltd1,967$1.81M
Integrated Wealth Concepts LLC1,905$1.75M
Kovitz Investment Group Partners, LLC1,636$1.51M
APG Asset Management US Inc.1,473$1.35M
Novem Group1,357$1.25M
Walleye Trading LLC1,271$1.17M
Catalytic Wealth RIA, LLC1,223$1.13M
Win Advisors, Inc1,144$1.05M
Bayesian Capital Management, LP1,100$1.01M
K.J. Harrison & Partners Inc1,000$930.5K
CTC Alternative Strategies, Ltd.974$896.7K
TownSquare Capital, LLC938$863.6K
Cidel Asset Management Inc935$860.8K
Brevan Howard Capital Management LP895$824.0K
NorthRock Partners, LLC882$812.5K
Burns Matteson Capital Management, LLC722$664.7K
Simplex Trading, LLC710$653.0K
Schonfeld Strategic Advisors LLC700$644.4K
SummitTX Capital, L.P.700$644.4K
Summit Wealth Group LLC1,366$631.0K
Voleon Capital Management LP682$627.9K
Pitcairn Co670$616.8K
Cynosure Management, LLC664$611.3K
Brighton Jones LLC656$604.2K
DRW Securities, LLC570$524.6K
Diversified Trust Co436$401.4K
Potentia Wealth320$294.6K
Consolidated Portfolio Review Corp317$291.8K
FSM Wealth Advisors, LLC315$290.1K
BIP Wealth, LLC309$284.5K
Wallace Advisory Group, LLC382$279.4K
Flow Traders U.S. LLC292$269.0K
Financiere des Professionnels - Fonds d,investissement inc.283$260.5K
Fieldview Capital Management, LLC283$260.5K
Csenge Advisory Group273$251.0K
Atom Investors LP271$249.5K
Pure Financial Advisors, Inc.269$247.7K
Woodward Diversified Capital, LLC264$243.0K
Sonoma Allocations LLC233$240.0K
Maridea Wealth Management LLC229$236.0K
180 Wealth Advisors, LLC242$222.8K
Meridian Wealth Advisors, LLC233$214.5K
Gsa Capital Partners LLP232$214.0K
Belpointe Asset Management LLC229$210.8K
Fortis Capital Advisors, LLC229$210.8K
Venturi Wealth Management, LLC229$210.8K
Wealth Alliance227$209.2K
Childress Capital Advisors, LLC220$202.4K
Purkiss Capital Advisors LLC219$201.6K
Harel Insurance Investments & Financial Services Ltd.168$154.0K
Ninepoint Partners LP162$149.1K
GPS Wealth Strategies Group, LLC134$123.6K
Pilgrim Partners Asia Pte Ltd60$55.2K
Itau Unibanco Holding S.A.43$39.6K
Rise Advisors, LLC41$38.1K
PenderFund Capital Management Ltd.31$28.5K
Arlington Trust Co LLC27$24.9K
Marshall & Sterling Wealth Advisors Inc.23$21.2K
North Capital, Inc.14$12.9K
Halbert Hargrove Global Advisors, LLC12$11.0K
TruNorth Capital Management, LLC10$9.21K
Activest Wealth Management10$9.21K
Financial Management Professionals, Inc.9$8.30K
Logan Capital Management Inc9$8.29K
Crowley Wealth Management, Inc.8$7.37K
JPL Wealth Management, LLC7$6.45K
Sofos Investments, Inc.6$5.54K
Grey Fox Wealth Advisors, LLC5$4.70K
Cloud Capital Management, LLC5$4.00K
Tortoise Investment Management, LLC4$3.68K
Longfellow Investment Management Co LLC3$2.76K
Advanced Portfolio Management, LLC3$2.76K
Trifecta Capital Advisors, LLC2$1.84K
Palisade Asset Management, LLC1$921
Hurley Capital, LLC1$921
Strengthening Families & Communities, LLC0$85

Not filed for Q4 2025 yet (18)

Institutions that held Monolithic Power Systems, Inc. at the end of Q3 2025 and haven't filed a 13F for Q4 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding MPWR in Q3 2025 that haven't filed for Q4 2025
InstitutionShares, Q3 2025Value, Q3 2025
AXA Investment Managers S.A.115,618$106.4M
Pinnacle Financial Partners Inc24,589$22.6M
Glenmede Investment Management, LP22,288$20.5M
CIBC Bancorp USA Inc.6,607$6.08M
Aware Super Pty Ltd as trustee of Aware Super6,426$5.92M
Synovus Financial Corp6,347$5.84M
Pinebridge Investments, L.P.2,083$1.92M
Sheets Smith Investment Management1,451$1.34M
Guerra Advisors Inc1,115$1.03M
Wolverine Trading, LLC714$633.0K
Wetherby Asset Management Inc549$505.4K
Shell Asset Management Co503$463.0K
First Affirmative Financial Network341$314.0K
Promus Capital, LLC136$125.2K
Hemington Wealth Management26$23.0K
Pineridge Advisors LLC6$5.52K
Binnacle Investments Inc2$1.84K
Texas Capital Bancshares Inc1$921