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Disclosery

MPWR MONOLITHIC PWR SYS INC

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Stock (common), issuer CIK 1280452

958 managers (984 13F filers) reported a position in MPWR shares at 2025-09-30, 46,836,663 shares in all. 153 filers opened a position and 75 filers sold out during the quarter.

Managers
958
13F filers
984
New
153
Added
361
Reduced
318
Sold out
75
Shares held by filers
46,836,663

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q3 2025

Filers in the available 13F reports with a share position at 2025-09-30, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
Beverly Hills Private Wealth, LLC562$518K0.09%-1913F-HRTimeline
Ballentine Partners, LLC555$511K0.01%+2413F-HRTimeline
Trust Asset Management LLC554$510K0.04%013F-HRTimeline
Knuff & Co LLC550$506K0.15%+3513F-HRTimeline
Laird Norton Wetherby Wealth Management…549$505K0.02%+7313F-HRTimeline
COOKSON PEIRCE & CO INC545$502K0.02%new13F-HRTimeline
Versant Capital Management, Inc545$502K0.07%+6313F-HRTimeline
Smartleaf Asset Management LLC565$501K0.03%+16913F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…542$499K0.02%+1813F-HRTimelineGroup
ALPS ADVISORS INCin group ALPS ADVISORS INC542$499K<0.01%-2113F-HRTimelineGroup
Savant Capital, LLCin group Savant Capital, LLC538$495K<0.01%+6313F-HR/ATimelineGroup
Pier Capital, LLC534$492K0.08%-4413F-HRTimeline
TFB Advisors LLC506$490K0.14%-2213F-HRTimeline
Financial Advisors Network, Inc.523$482K0.07%-6613F-HRTimeline
Truvestments Capital LLC518$477K0.09%+34613F-HRTimeline
SAGESPRING WEALTH PARTNERS, LLC512$471K0.01%+1213F-HRTimeline
ABN AMRO INVESTMENT SOLUTIONSin group ABN AMRO INVESTMENT SOLUTIONS511$470K0.01%-18013F-HRTimelineGroup
Three Seasons Wealth, LLC509$469K0.05%new13F-HRTimeline
Morningstar Investment Management LLCin group Morningstar Investment Manage…508$468K0.02%new13F-HRTimelineGroup
Wilmington Savings Fund Society, FSB508$468K0.01%-5,08113F-HR/ATimeline
CoreCap Advisors, LLC506$466K0.02%-7613F-HRTimeline
Clarius Group, LLC504$464K0.03%+3613F-HRTimeline
SHELL ASSET MANAGEMENT CO503$463K0.05%-4,66113F-HRTimeline
MGB Wealth Management, LLC500$460K0.13%013F-HRTimeline
DEROY & DEVEREAUX PRIVATE INVESTMENT CO…500$460K0.02%013F-HRTimeline
UMB Bank, n.a.492$453K0.01%+1213F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Parallel Advisors, LLC489$450K0.01%-413F-HRTimeline
GUARDIAN CAPITAL LPin group GUARDIAN CAPITAL LP488$449K0.01%-713F-HRTimelineGroup
Coastal Bridge Advisors, LLC488$449K0.03%+713F-HRTimeline
Ameritas Investment Partners, Inc.group of 2 filers holding484$446K-2Timeline
Fielder Capital Group LLC482$444K0.1%+213F-HRTimeline
KICKSTAND VENTURES, LLC.480$442K0.1%013F-HRTimeline
GLOBEFLEX CAPITAL L P474$436K0.07%013F-HRTimeline
Caitlin John, LLC471$434K0.3%-1313F-HRTimeline
Covenant Asset Management, LLC465$428K0.08%+313F-HRTimeline
Crestwood Advisors Group, LLC462$425K0.01%+7813F-HRTimeline
KCM INVESTMENT ADVISORS LLC457$421K0.01%013F-HRTimeline
Legacy Wealth Asset Management, LLC457$421K0.1%-7613F-HRTimeline
CIGNA INVESTMENTS INC /NEWin group CIGNA INVESTMENTS INC /NEW455$419K0.06%013F-HRTimelineGroup
UHLMANN PRICE SECURITIES, LLC454$418K0.26%013F-HRTimeline
Vancity Investment Management Ltd454$418K0.06%013F-HRTimeline
Covenant Partners, LLC454$418K0.12%013F-HRTimeline
Mutual Advisors, LLC390$418K0.01%new13F-HRTimeline
BXM Wealth LLC450$414K0.39%013F-HRTimeline
WESTPAC BANKING CORPin group WESTPAC BANKING CORP449$413K0.03%013F-HR/ATimelineGroup
Outlook Wealth Advisors, LLC449$413K0.1%-2313F-HRTimeline
Adams Wealth Management456$411K0.09%013F-HRTimeline
CacheTech Inc.456$411K0.08%013F-HRTimeline
Sage Mountain Advisors LLC445$410K0.02%+9413F-HRTimeline
Compound Planning, Inc.445$409K0.01%+8213F-HRTimeline
Guinness Asset Management LTD461$409K0.01%-11213F-HRTimeline
Spire Wealth Managementin group Spire Wealth Management443$408K0.01%-13213F-HRTimelineGroup
Alliance Wealth Advisors, LLC /UT438$403K0.09%-4813F-HRTimeline
MAINSTAY CAPITAL MANAGEMENT LLC /ADV436$401K0.04%-35813F-HRTimeline
DIVERSIFIED TRUST CO436$401K0.01%-29313F-HRTimeline
BRIDGES INVESTMENT MANAGEMENT INC426$392K0.01%013F-HRTimeline
Moors & Cabot, Inc.425$391K0.02%-46813F-HRTimeline
McHugh Group, LLC425$391K0.23%013F-HRTimeline
DAVENPORT & Co LLC420$387K<0.01%-21813F-HRTimeline
Yarbrough Capital, LLC418$385K0.01%new13F-HRTimeline
Total Clarity Wealth Management, Inc.417$384K0.1%new13F-HRTimeline
FineMark National Bank & Trust414$381K0.01%new13F-HRTimeline
AMERICAN NATIONAL BANK & TRUST413$380K0.04%-1213F-HRTimeline
Campbell & CO Investment Adviser LLC407$375K0.03%-1,65113F-HRTimeline
Advisory Alpha, LLC401$373K0.01%-5313F-HRTimeline
Tributary Capital Management, LLC405$373K0.03%new13F-HR/ATimeline
NorthStar Asset Management LLC /NJ/402$370K0.18%013F-HRTimeline
Sather Financial Group Inc400$368K0.02%013F-HRTimeline
Florida Trust Wealth Management Co399$367K0.01%013F-HRTimeline
S-Bank Fund Management Ltd394$363K0.05%-513F-HRTimeline
Kera Capital Partners, Inc.390$359K0.05%013F-HRTimeline
Forum Financial Management, LPin group Forum Financial Management, LP383$353K<0.01%-2113F-HRTimelineGroup
OneDigital Investment Advisors LLC380$350K<0.01%+4113F-HRTimeline
New Hampshire Trust379$349K0.07%-613F-HRTimeline
PATTON FUND MANAGEMENT, INC.376$346K0.06%013F-HRTimeline
Johnson Financial Group, Inc.in group Johnson Financial Group, Inc.375$346K0.01%-2913F-HRTimelineGroup
Marex Group Ltdin group Marex Group Ltd374$344K<0.01%-4,23513F-HRTimelineGroup
Optas, LLC373$343K0.06%new13F-HRTimeline
West Family Investments, Inc.370$341K0.08%+1013F-HRTimeline
Summit Creek Advisors LLC365$336K0.05%-2513F-HRTimeline
Livforsakringsbolaget Skandia, Omsesidi…365$336K0.01%013F-HRTimeline
Hutchens & Kramer Investment Management…362$333K0.13%+6413F-HRTimeline
Clear Creek Financial Management, LLC360$331K0.03%-27213F-HRTimeline
Sowell Financial Services LLC354$326K0.01%-1613F-HRTimeline
Avestar Capital, LLC354$326K0.02%new13F-HRTimeline
First Affirmative Financial Network341$314K0.15%-913F-HRTimeline
Turtle Creek Wealth Advisors, LLC341$314K0.03%new13F-HRTimeline
AMG National Trust Bank340$313K0.01%013F-HRTimeline
MAI Capital Management339$312K<0.01%+14313F-HRTimeline
SG Americas Securities, LLC338$311K<0.01%-21,38013F-HRTimeline
Dorsey & Whitney Trust CO LLC337$311K0.02%-1313F-HRTimeline
BAM Wealth Management, LLC335$308K0.24%13F-HRTimeline
TigerOak Management, L.L.C.334$307K0.1%013F-HRTimeline
EWA, LLC333$307K0.08%+213F-HRTimeline
COMMERZBANK AKTIENGESELLSCHAFT /FI330$304K0.01%013F-HRTimeline
SageView Advisory Group, LLC321$296K0.01%+1813F-HRTimeline
Keel Point, LLC320$295K0.02%+3013F-HRTimeline
POTENTIA WEALTH320$295K0.11%013F-HRTimeline
UNIQUE WEALTH, LLC318$293K0.04%+313F-HRTimeline
CERTUITY, LLC317$292K0.02%new13F-HRTimeline
Consolidated Portfolio Review Corp317$292K0.04%+1413F-HRTimeline
FSM Wealth Advisors, LLC315$290K0.04%+1913F-HRTimeline
Phoenix Financial Ltd.in group Phoenix Financial Ltd.310$286K<0.01%new13F-HR/ATimelineGroup
BIP Wealth, LLC309$284K0.01%new13F-HRTimeline
Aptus Capital Advisors, LLC307$283K<0.01%+213F-HRTimeline
Atlatl Advisers LLC305$281K0.11%+813F-HRTimeline
Wallace Advisory Group, LLC382$279K0.22%-5913F-HRTimeline
PIAR LLC300$276K0.2%new13F-HRTimeline
Allworth Financial LP299$275K<0.01%+8113F-HRTimeline
CARY STREET PARTNERS ASSET MANAGEMENT L…group of 2 filers holding298$274K+5Timeline
JOURNEY STRATEGIC WEALTH LLC297$273K0.01%-6513F-HRTimeline
FLOW TRADERS U.S. LLC292$269K0.01%new13F-HRTimeline
CX Institutional291$268K0.01%+113F-HRTimeline
DEARBORN PARTNERS LLC290$267K0.01%new13F-HRTimeline
PERSONAL CFO SOLUTIONS, LLC289$266K0.05%-1213F-HRTimeline
Integrated Investment Consultants, LLC283$261K0.04%013F-HRTimeline
Financiere des Professionnels - Fonds d…283$261K0.02%new13F-HRTimeline
Fieldview Capital Management, LLC283$261K0.04%new13F-HRTimeline
First Bank & Trust281$259K0.04%013F-HRTimeline
EQ LLC279$257K0.09%013F-HRTimeline
Csenge Advisory Group273$251K0.01%-7813F-HRTimeline
Atom Investors LP271$249K0.02%new13F-HRTimeline
Pallas Capital Advisors LLC271$249K0.01%new13F-HRTimeline
Pure Financial Advisors, LLC269$248K<0.01%new13F-HRTimeline
Howard Capital Management, LLC269$248K<0.01%new13F-HRTimeline
SHELTON CAPITAL MANAGEMENT267$246K0.01%new13F-HRTimeline
Checchi Capital Advisers, LLC266$245K0.02%-7313F-HRTimeline
Alta Advisers Ltdin group Alta Advisers Ltd265$244K0.07%new13F-HRTimelineGroup
WOODWARD DIVERSIFIED CAPITAL, LLC264$243K0.11%-1313F-HRTimeline
Sonoma Allocations LLC233$240K0.09%13F-HRTimeline
MassMutual Private Wealth & Trust, FSB257$237K0.01%+813F-HRTimeline
AlTi Global, Inc.in group AlTi Global, Inc.256$236K0.01%new13F-HRTimelineGroup
Maridea Wealth Management LLC229$236K0.04%new13F-HRTimeline
Naviter Wealth, LLC254$234K0.03%new13F-HRTimeline
Corundum Group, Inc.254$234K0.1%-2313F-HRTimeline
Gladstone Institutional Advisory LLC254$234K0.01%new13F-HRTimeline
Tradition Wealth Management, LLC253$233K0.02%new13F-HRTimeline
SBI Securities Co., Ltd.252$232K0.01%-10413F-HRTimeline
MOKAN Wealth Management Inc.248$229K0.12%new13F-HRTimeline
Composition Wealth, LLC246$227K<0.01%new13F-HRTimeline
BROWN BROTHERS HARRIMAN & COin group BROWN BROTHERS HARRIMAN & CO246$226K<0.01%+8613F-HRTimelineGroup
Sustainable Insight Capital Management,…244$225K0.07%new13F-HRTimeline
Simplicity Wealth,LLC243$224K0.01%new13F-HRTimeline
Resonant Capital Advisors, LLC243$224K0.01%new13F-HRTimeline
180 WEALTH ADVISORS, LLC242$223K0.03%new13F-HRTimeline
CONNING INC.in group CONNING INC.241$222K0.01%new13F-HRTimelineGroup
Gerber Kawasaki Wealth & Investment Man…238$219K0.01%-5313F-HRTimeline
PDS Planning, Inc238$219K0.02%new13F-HRTimeline
Bridgewater Advisors Inc.227$217K0.02%new13F-HRTimeline
HUB Investment Partners, LLC236$217K0.01%new13F-HRTimeline
Alpha Family Trustin group Alpha Family Trust235$216K0.1%new13F-HRTimelineGroup
Meridian Wealth Advisors, LLC233$215K0.03%new13F-HRTimeline
GSA CAPITAL PARTNERS LLP232$214K0.02%-53113F-HRTimeline
Belpointe Asset Management LLC229$211K0.01%new13F-HRTimeline
Fortis Capital Advisors, LLC229$211K0.03%new13F-HRTimeline
Venturi Wealth Management, LLC229$211K0.01%new13F-HRTimeline
Sunflower Bank, N.A.228$210K0.05%new13F-HRTimeline
Cresset Asset Management, LLC227$209K<0.01%new13F-HR/ATimeline
MCF Advisors LLC227$209K0.01%013F-HRTimeline
WEALTH ALLIANCE, LLC227$209K0.02%new13F-HRTimeline
Wall Street Financial Group, Inc.225$207K0.15%new13F-HRTimeline
INTERNATIONAL ASSETS INVESTMENT MANAGEM…276$206K0.02%013F-HRTimeline
Autumn Glory Partners, LLC223$205K0.08%new13F-HRTimeline
CWA Asset Management Group, LLC220$203K0.01%new13F-HRTimeline
CHILDRESS CAPITAL ADVISORS, LLC220$202K0.04%new13F-HRTimeline
CVA Family Office, LLC219$202K0.03%+113F-HRTimeline
Purkiss Capital Advisors LLC219$202K0.1%new13F-HRTimeline
Jacobi Capital Management LLC218$201K0.01%new13F-HRTimeline
DRIVE WEALTH MANAGEMENT, LLC218$201K0.04%new13F-HRTimeline
ST GERMAIN D J CO INCin group ST GERMAIN D J CO INC201$185K0.01%-2913F-HRTimelineGroup
Firsthand Capital Management, Inc.200$184K0.31%new13F-HRTimeline
SILVER OAK SECURITIES, INCORPORATED197$181K0.01%new13F-HRTimeline
MONTAG A & ASSOCIATES INC189$174K0.01%-16113F-HRTimeline
LRI Investments, LLC188$173K0.01%013F-HRTimeline
Harel Insurance Investments & Financial…in group Harel Insurance Investments &…168$154K<0.01%new13F-HRTimelineGroup
YANKCOM Partnership165$152K0.07%+213F-HRTimeline
Ninepoint Partners LP162$149K0.02%new13F-HRTimeline
TD Waterhouse Canada Inc.162$148K<0.01%-213F-HRTimeline
ROTHSCHILD INVESTMENT LLC156$144K0.01%+213F-HRTimeline
OFI INVEST ASSET MANAGEMENT178$139K<0.01%new13F-HRTimeline
Reyes Financial Architecture, Inc.150$138K0.09%-7513F-HRTimeline
Capital Analysts, LLCin group Capital Analysts, LLC146$134K<0.01%013F-HRTimelineGroup
ZIONS BANCORPORATION, NATIONAL ASSOCIAT…145$133K0.01%+5113F-HRTimeline
Cromwell Holdings LLC143$132K0.07%+1213F-HRTimeline
Aventura Private Wealth, LLC142$131K0.05%+313F-HRTimeline
Park Place Capital Corp137$126K0.03%-4713F-HRTimeline
Promus Capital, LLC136$125K0.08%013F-HRTimeline
GPS Wealth Strategies Group, LLC134$124K0.01%-13113F-HRTimeline
TRUST CO OF VERMONT130$120K0.01%013F-HRTimeline
Avalon Trust Co127$117K0.01%new13F-HRTimeline
CYBER HORNET ETFs LLC125$115K0.07%+113F-HRTimeline
Migdal Insurance & Financial Holdings L…in group Migdal Insurance & Financial …123$113K<0.01%+1513F-HRTimelineGroup
SENTRY INVESTMENT MANAGEMENT LLC114$112K0.07%-2313F-HRTimeline
ESSEX INVESTMENT MANAGEMENT CO LLC120$110K0.02%-18013F-HRTimeline
Quent Capital, LLC117$108K0.01%new13F-HRTimeline
Wealthspire Advisors, LLC113$104K<0.01%new13F-HRTimeline
Leonteq Securities AG97$89.3K<0.01%-6313F-HRTimeline
TOWARZYSTWO FUNDUSZY INWESTYCYJNYCH PZU…87$80.1K0.02%013F-HRTimeline
Evelyn Partners Asset Management Ltdin group Evelyn Partners Group Ltd84$77.3K0.02%013F-HRTimelineGroup
SUMMIT SECURITIES GROUP LLC83$76.4K0.03%+5113F-HRTimeline