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Disclosery

MPWR MONOLITHIC PWR SYS INC

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Stock (common), issuer CIK 1280452

1,208 managers (1,249 13F filers) reported a position in MPWR shares at 2026-06-30, 47,602,602 shares in all. 207 filers opened a position and 80 filers sold out during the quarter.

Managers
1,208
13F filers
1,249
New
207
Added
419
Reduced
464
Sold out
80
Shares held by filers
47,602,602

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, Q2 2026

Filers in the available 13F reports with a share position at 2026-06-30, 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
GLENMEDE TRUST CO NAin group GLENMEDE TRUST CO NA16,226$22.4M0.1%-4,42513F-HRTimelineGroup
NISA INVESTMENT ADVISORS, LLC15,838$21.9M0.07%-12913F-HRTimeline
LOS ANGELES CAPITAL MANAGEMENT LLC15,760$21.8M0.08%+15,55113F-HRTimeline
SIT INVESTMENT ASSOCIATES INCin group SIT INVESTMENT ASSOCIATES INC15,491$21.4M0.41%013F-HRTimelineGroup
Sanctuary Advisors, LLC15,480$21.4M0.1%-92613F-HRTimeline
Mediolanum International Funds Ltd16,143$21.2M0.18%-3,78713F-HRTimeline
Inspire Investing, LLCgroup of 2 filers holding15,247$21.1M+2,523Timeline
JUPITER ASSET MANAGEMENT LTDin group JUPITER ASSET MANAGEMENT LTD15,242$21.1M0.1%-3,30813F-HRTimelineGroup
Public Sector Pension Investment Board15,111$20.9M0.05%+6,30013F-HR/ATimeline
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…15,088$20.9M0.07%-1,25013F-HRTimelineGroup
Woodline Partners LP14,587$20.2M0.06%+12,71813F-HRTimeline
BANCO BILBAO VIZCAYA ARGENTARIA, S.A.14,515$20M0.12%-1013F-HRTimeline
Lansforsakringar Fondforvaltning AB (pu…14,303$19.8M0.09%+2,46413F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…14,266$19.7M0.01%+9413F-HRTimelineGroup
OP Asset Management Ltd14,254$19.7M0.21%-2,67013F-HRTimeline
Cullen/Frost Bankers, Inc.in group Cullen/Frost Bankers, Inc.14,100$19.5M0.19%+34513F-HRTimelineGroup
Czech National Bank13,984$19.3M0.11%+71813F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.13,833$19.1M0.02%-49613F-HRTimelineGroup
Mn Services Vermogensbeheer B.V.13,653$18.9M0.14%-4,70013F-HRTimeline
STOREBRAND ASSET MANAGEMENT AS13,455$18.6M0.05%+1,18113F-HRTimeline
ARIZONA STATE RETIREMENT SYSTEM13,379$18.5M0.09%+36113F-HRTimeline
Moran Wealth Management, LLC13,126$18.1M0.49%-2,59913F-HRTimeline
MetLife Investment Management, LLCin group MetLife Investment Management…13,069$18.1M0.08%-36313F-HRTimelineGroup
XPONANCE LLC12,813$17.7M0.11%-7413F-HRTimeline
STATE OF MICHIGAN RETIREMENT SYSTEM12,811$17.7M0.08%-1,15913F-HRTimeline
FJARDE AP-FONDEN /FOURTH SWEDISH NATION…12,740$17.6M0.08%-8,75813F-HRTimeline
Copeland Capital Management, LLC12,625$17.5M0.36%-3,13013F-HRTimeline
Erste Asset Management GmbHin group Erste Asset Management GmbH13,177$17.4M0.14%-1,43513F-HRTimelineGroup
Polar Capital Holdings Plcin group Polar Capital Holdings Plc12,370$17.1M0.05%+4,99013F-HRTimelineGroup
US BANCORP \DE\in group US BANCORP \DE\12,361$17.1M0.02%+15913F-HRTimelineGroup
WESTWOOD HOLDINGS GROUP INCin group WESTWOOD HOLDINGS GROUP INC12,293$17M0.13%-1,42013F-HRTimelineGroup
Vident Advisory, LLCin group Vident Advisory, LLC12,133$16.8M0.12%-3,94613F-HRTimelineGroup
Nicholas Investment Partners, LP12,129$16.8M0.94%+10013F-HRTimeline
ING GROEP NV12,045$16.7M0.08%+10,39713F-HRTimeline
Arosa Capital Management LP12,000$16.6M14.47%+7,50013F-HRTimeline
Tredje AP-fonden11,490$15.9M0.07%-6,68113F-HRTimeline
Cetera Investment Advisers11,439$15.8M0.01%-2,51313F-HRTimeline
KBC Group NVin group KBC Group NV11,300$15.6M0.03%-6,52013F-HRTimelineGroup
Hood River Capital Management LLC11,027$15.2M0.11%new13F-HRTimeline
Pathstone Holdings, LLCin group Pathstone Holdings, LLC10,932$15.2M0.04%-1,07713F-HRTimelineGroup
MACQUARIE GROUP LTDin group MACQUARIE GROUP LTD10,930$15.1M0.07%+44113F-HRTimelineGroup
COMMERCE BANKin group COMMERCE BANK10,928$15.1M0.07%-11113F-HRTimelineGroup
Federation des caisses Desjardins du Qu…10,853$15M0.05%+1,52713F-HRTimeline
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCH…10,851$15M0.07%-49513F-HRTimeline
Stratos Wealth Partners, LTD.group of 2 filers holding10,803$14.9M+1,359Timeline
IFM Investors Pty Ltd10,473$14.5M0.1%+90413F-HRTimeline
Catalyst Funds Management Pty Ltd10,470$14.5M0.81%+10,25913F-HRTimeline
Retirement Systems of Alabama10,320$14.3M0.04%-2313F-HRTimeline
CARDEROCK CAPITAL MANAGEMENT INC10,301$14.2M3.12%-1,36413F-HRTimeline
AMALGAMATED BANK10,111$14M0.1%-65513F-HRTimeline
NorthCrest Asset Manangement, LLC10,135$13.9M0.36%-5313F-HRTimeline
Larson Financial Group LLC9,930$13.7M0.36%+73313F-HRTimeline
GF FUND MANAGEMENT CO. LTD.9,921$13.7M0.16%+10413F-HRTimeline
BENJAMIN EDWARDS INCin group BENJAMIN EDWARDS INC9,819$13.6M0.12%+1,09713F-HRTimelineGroup
MERCER GLOBAL ADVISORS INC /ADV9,772$13.5M0.02%-27113F-HR/ATimeline
IMC-Chicago, LLC9,733$13.5M0.12%+6,60213F-HRTimeline
CCM INVESTMENT ADVISERS LLC9,568$13.2M1.02%+1,98213F-HRTimeline
Varma Mutual Pension Insurance Co9,200$12.7M0.07%new13F-HRTimeline
Stanley-Laman Group, Ltd.9,172$12.7M1.29%-26613F-HRTimeline
BOKF, NAin group BOKF, NA8,970$12.4M0.17%-13513F-HRTimelineGroup
Wealthfront Advisers LLC8,873$12.3M0.02%+14213F-HRTimeline
PensionDanmark Pensionsforsikringsaktie…8,820$12.2M0.1%+86013F-HRTimeline
AustralianSuper Pty Ltd8,742$12.1M0.05%-2,75413F-HRTimeline
Steward Partners Investment Advisory, L…8,663$12M0.06%+3,40813F-HRTimeline
UniSuper Management Pty Ltd8,594$11.9M0.06%-16913F-HRTimeline
Pacer Advisors, Inc.8,525$11.8M0.03%-30,28213F-HRTimeline
BURNEY CO/8,383$11.6M0.31%-38013F-HRTimeline
Dakota Wealth Management8,310$11.5M0.22%+65213F-HRTimeline
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…8,143$11.3M0.28%+4,52913F-HRTimelineGroup
New York Life Investment Management LLCin group New York Life Investment Mana…8,013$11.1M0.08%+76413F-HRTimelineGroup
HANTZ FINANCIAL SERVICES, INC.7,864$10.9M0.15%-1,55813F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Cornerstone Advisors, LLC7,864$10.9M0.36%-4,04313F-HRTimeline
Left Brain Wealth Management, LLC7,491$10.4M3.12%+4,51813F-HRTimeline
Atlantic Union Bankshares Corpin group Atlantic Union Bankshares Corp7,339$10.1M0.17%013F-HRTimelineGroup
Utah Retirement Systems7,178$9.92M0.09%-34713F-HRTimeline
Ethic Inc.7,107$9.82M0.12%+48213F-HRTimeline
Police & Firemen's Retirement System of…7,098$9.81M0.07%-1313F-HRTimeline
PANAGORA ASSET MANAGEMENT INC7,068$9.77M0.03%-35,00713F-HRTimeline
OPPENHEIMER ASSET MANAGEMENT INC.group of 2 filers holding7,050$9.75M-1,473Timeline
Jupiter Topco LLCin group Janus Henderson7,056$9.75M<0.01%13F-HRTimelineGroup
BRITISH COLUMBIA INVESTMENT MANAGEMENT …6,992$9.67M0.06%+39013F-HRTimeline
DZ BANK AG Deutsche Zentral Genossensch…in group DZ BANK AG Deutsche Zentral G…6,873$9.5M0.01%-47013F-HRTimelineGroup
PROFUND ADVISORS LLC6,824$9.43M0.26%+91913F-HRTimeline
LEVEL FOUR ADVISORY SERVICES, LLCin group LEVEL FOUR ADVISORY SERVICES,…6,809$9.41M0.27%-26613F-HRTimelineGroup
Sumitomo Mitsui DS Asset Management Com…in group SUMITOMO MITSUI FINANCIAL GRO…6,789$9.38M0.06%+47913F-HRTimelineGroup
O'SHAUGHNESSY ASSET MANAGEMENT, LLC6,770$9.36M0.04%-1,64413F-HRTimeline
CIBC WORLD MARKET INC.6,673$9.22M0.02%-1,26413F-HRTimeline
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLCin group MUTUAL OF AMERICA CAPITAL MAN…6,672$9.22M0.09%-1,05213F-HRTimelineGroup
BRASADA CAPITAL MANAGEMENT, LP6,469$8.94M1.61%+2,76513F-HR/ATimeline
SATURNA CAPITAL CORP6,408$8.86M0.11%-15513F-HRTimeline
PREVAIL INNOVATIVE WEALTH ADVISORS, LLC6,401$8.85M1.32%+3,95613F-HRTimeline
BOSTON FAMILY OFFICE LLC6,321$8.74M0.53%+1,77713F-HRTimeline
ASR Vermogensbeheer N.V.6,303$8.71M0.09%+1,83113F-HRTimeline
Global X Japan Co., Ltd.6,273$8.67M0.32%+2,12313F-HRTimeline
MOORE CAPITAL MANAGEMENT, LP6,250$8.64M0.2%new13F-HRTimeline
State of Alaska, Department of Revenue6,201$8.57M0.09%-12113F-HRTimeline
Eurizon Capital SGR S.p.A.6,115$8.44M0.02%-2,84613F-HRTimeline
OREGON PUBLIC EMPLOYEES RETIREMENT FUND6,037$8.35M0.09%+44613F-HRTimeline
Aware Super Pty Ltd as trustee of Aware…5,996$8.29M0.12%013F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd5,954$8.23M0.11%new13F-HRTimelineGroup
ACADIAN ASSET MANAGEMENT LLCin group ACADIAN ASSET MANAGEMENT LLC5,946$8.21M0.01%+4,40113F-HRTimelineGroup
Freestone Grove Partners LP5,914$8.18M0.05%-9,10113F-HRTimeline
AMERICAN CAPITAL MANAGEMENT INC5,897$8.15M0.37%-42313F-HRTimeline
Meiji Yasuda Life Insurance Cogroup of 2 filers holding5,862$8.1M+4,641Timeline
ABN AMRO INVESTMENT SOLUTIONSgroup of 2 filers holding5,871$8.09M+667Timeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…5,778$7.99M0.11%+5,43713F-HRTimelineGroup
iA Global Asset Management Inc.5,733$7.92M0.09%-9,41313F-HRTimeline
Louisiana State Employees Retirement Sy…5,700$7.88M0.12%013F-HR/ATimeline
Knollwood Investment Advisory, LLC5,685$7.86M0.7%013F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS5,508$7.61M0.02%-4,84513F-HRTimeline
SHELTON CAPITAL MANAGEMENT5,497$7.6M0.14%-14913F-HRTimeline
Counterpoint Mutual Funds LLC5,491$7.59M0.75%new13F-HRTimeline
Davidson Capital Management Inc.5,368$7.42M1.19%-4413F-HRTimeline
Ilmarinen Mutual Pension Insurance Co5,345$7.39M0.05%013F-HRTimeline
FIRST FOUNDATION ADVISORSin group FIRST FOUNDATION ADVISORS5,301$7.33M0.26%-1,05513F-HRTimelineGroup
Janney Montgomery Scott LLC5,262$7.28M0.01%+613F-HRTimeline
TRUIST FINANCIAL CORPin group TRUIST FINANCIAL CORP5,197$7.18M0.01%-18213F-HRTimelineGroup
Avanza Fonder AB5,190$7.17M0.16%+85013F-HRTimeline
Cerity Partners LLCin group Cerity Partners LLC5,125$7.08M0.01%+48713F-HRTimelineGroup
Empirical Financial Services, LLC d.b.a…5,110$7.06M0.1%-12513F-HRTimeline
QUEST INVESTMENT MANAGEMENT LLC5,100$7.05M0.82%-96113F-HRTimeline
Cambridge Investment Research Advisors,…5,073$7.01M0.02%+1,65713F-HR/ATimeline
KORNITZER CAPITAL MANAGEMENT INC /KS5,010$6.93M0.14%+83313F-HRTimeline
OMERS ADMINISTRATION Corp4,994$6.9M0.04%+74513F-HRTimeline
Bahl & Gaynor LLC4,970$6.87M0.03%-7213F-HRTimeline
LAZARD ASSET MANAGEMENT LLCin group LAZARD ASSET MANAGEMENT LLC4,964$6.86M0.01%+75413F-HRTimelineGroup
Investment Management Corp of Ontario4,888$6.76M0.09%-27013F-HRTimeline
Titan Investment Solutions Ltdin group Titan Investment Solutions Ltd4,855$6.71M0.75%-4,85513F-HRTimelineGroup
Parcion Private Wealth LLC4,761$6.58M0.37%-4313F-HRTimeline
Midwest Trust Co4,759$6.58M0.07%-2,65913F-HRTimeline
NewEdge Advisors, LLC4,755$6.57M0.02%-44213F-HRTimeline
Harbour Trust & Investment Management Co4,750$6.57M0.63%+2,41213F-HRTimeline
Norinchukin Bank, Thein group Norinchukin Bank, The4,655$6.43M0.06%+9313F-HRTimelineGroup
YOUSIF CAPITAL MANAGEMENT, LLC4,599$6.36M0.07%-29913F-HRTimeline
QRG CAPITAL MANAGEMENT, INC.4,590$6.35M0.05%-1,90313F-HR/ATimeline
COMMONWEALTH EQUITY SERVICES, LLC4,510$6.23M0.01%-2613F-HRTimeline
KP Management LLC4,500$6.22M1.3%013F-HRTimeline
AZZAD ASSET MANAGEMENT INC /ADV4,476$6.19M0.55%-18913F-HRTimeline
Concurrent Investment Advisors, LLCin group Concurrent Investment Advisor…4,455$6.16M0.05%+3,21113F-HRTimelineGroup
Illinois Municipal Retirement Fund4,450$6.15M0.07%+1,02213F-HRTimeline
Sterling Capital Management LLC4,403$6.09M0.1%+91813F-HRTimeline
BI Asset Management Fondsmaeglerselskab…in group BI Asset Management Fondsmaeg…4,372$6.04M0.05%+3713F-HRTimelineGroup
Hennion & Walsh Asset Management, Inc.4,348$6.01M0.17%+43413F-HRTimeline
Rathbones Group PLC4,325$5.98M0.02%-60413F-HRTimeline
MML INVESTORS SERVICES, LLC4,311$5.96M0.01%+14713F-HRTimeline
Lombard Odier Asset Management (Europe)…4,181$5.78M0.25%-8,90213F-HRTimeline
Oak Harvest Investment Services4,173$5.77M0.54%+62013F-HRTimeline
Summit Trail Advisors, LLC4,169$5.76M0.07%-15613F-HRTimeline
Kentucky Retirement Systemsgroup of 2 filers holding4,135$5.72M+2,917Timeline
FIRST NATIONAL BANK OF OMAHAgroup of 2 filers holding4,087$5.65M-1,575Timeline
SIH Partners, LLLPin group SIH Partners, LLLP4,075$5.63M0.23%-4,84113F-HRTimelineGroup
MITCHELL CAPITAL MANAGEMENT CO3,961$5.48M0.83%-1,42413F-HRTimeline
Motley Fool Asset Management LLCin group Motley Fool Asset Management …3,957$5.47M0.21%new13F-HRTimelineGroup
NORTHWESTERN MUTUAL INVESTMENT MANAGEME…group of 2 filers holding3,936$5.44M-105Timeline
TWINBEECH CAPITAL LP3,934$5.44M0.98%new13F-HRTimeline
Generate Investment Management Ltd3,922$5.42M0.22%-6,71813F-HRTimeline
Vinva Investment Management Ltd4,115$5.4M0.04%+3,79513F-HRTimeline
Ameritas Investment Partners, Inc.group of 2 filers holding3,900$5.39M+1,475Timeline
HB Wealth Management, LLC3,834$5.3M0.03%-56113F-HRTimeline
TEACHERS RETIREMENT SYSTEM OF THE STATE…3,806$5.26M0.04%013F-HRTimeline
Merit Financial Group, LLC3,790$5.24M0.03%+69213F-HR/ATimeline
Trilogy Capital Inc.3,781$5.23M0.2%-72213F-HRTimeline
Genus Capital Management Inc.3,750$5.18M0.51%new13F-HRTimeline
HighTower Advisors, LLC3,741$5.17M<0.01%-3113F-HRTimeline
Torray Investment Partners LLC3,715$5.14M0.69%+813F-HRTimeline
Triasima Portfolio Management inc.3,707$5.12M0.69%013F-HRTimeline
GUARDIAN CAPITAL LPin group GUARDIAN CAPITAL LP3,667$5.07M0.12%+5213F-HRTimelineGroup
FIRST AMERICAN TRUST, FSB3,643$5.04M0.3%-2,78613F-HRTimeline
Gulf International Bank (UK) Ltd3,643$5.04M0.1%-7113F-HRTimeline
PEAPACK GLADSTONE FINANCIAL CORP3,612$4.99M0.06%+78913F-HRTimeline
Laurion Capital Management LP3,579$4.95M0.36%new13F-HRTimeline
Baker Avenue Asset Management, LP3,540$4.89M0.09%+32513F-HRTimeline
ARGENT CAPITAL MANAGEMENT LLC3,507$4.85M0.15%-3,01413F-HRTimeline
MV CAPITAL MANAGEMENT, INC.3,488$4.82M0.43%-7913F-HR/ATimeline
BNP PARIBASin group BNP PARIBAS3,409$4.71M0.13%new13F-HRTimelineGroup
Paragon Advisors, LLC3,367$4.65M0.98%+21113F-HRTimeline
&PARTNERS3,344$4.63M0.02%-42113F-HRTimeline
INTRUST BANK NA3,289$4.55M0.34%-8213F-HRTimeline
Leelyn Smith, LLC3,269$4.52M0.55%-7613F-HRTimeline
Integrated Wealth Concepts LLC3,266$4.51M0.03%-42013F-HR/ATimeline
Saudi Central Bank3,266$4.51M0.06%+1,49813F-HRTimeline
Itau Unibanco Holding S.A.in group Itau Unibanco Holding S.A.3,200$4.42M0.09%new13F-HRTimelineGroup
ExodusPoint Capital Management, LP3,198$4.42M0.04%new13F-HRTimeline
COLDSTREAM CAPITAL MANAGEMENT INC3,159$4.37M0.05%-18313F-HRTimeline
PARK AVENUE SECURITIES LLCin group PARK AVENUE SECURITIES LLC3,155$4.36M0.03%-18813F-HRTimelineGroup
WEALTH ENHANCEMENT ADVISORY SERVICES, L…13,517$4.36M0.01%+39313F-HRTimeline
Metis Global Partners, LLC3,149$4.35M0.1%+95713F-HRTimeline
Modern Wealth Management, LLC3,132$4.33M0.05%+2713F-HRTimeline
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPin group ARROWSTREET CAPITAL, LIMITED …3,130$4.33M<0.01%new13F-HRTimelineGroup
Harfst & Associates, Inc.3,124$4.32M0.67%-16413F-HRTimeline
Calamos Advisors LLCgroup of 2 filers holding3,122$4.32M-1,643Timeline
Rockefeller Capital Management L.P.in group Rockefeller Capital Managemen…3,117$4.31M0.01%+11913F-HRTimelineGroup
PFG Advisors3,110$4.3M0.22%-23413F-HRTimeline
Bridgewater Associates, LP3,096$4.28M0.02%-8,84613F-HRTimeline
ALLSTATE CORPin group ALLSTATE CORP3,091$4.27M0.04%-1,97313F-HRTimelineGroup
Advisors Asset Management, Inc.3,071$4.25M0.06%-7013F-HRTimeline
GKV Capital Management Co., Inc.3,060$4.23M1.36%+12013F-HRTimeline
E Fund Management Co., Ltd.3,046$4.21M0.09%+13413F-HRTimeline
D. E. Shaw & Co., Inc.in group D. E. Shaw & Co., Inc.3,035$4.2M<0.01%+1,81813F-HRTimelineGroup
Equitable Holdings, Inc.in group Equitable Holdings, Inc.3,025$4.18M0.02%-3513F-HRTimelineGroup