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Disclosery

MPWR MONOLITHIC PWR SYS INC

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Stock (common), issuer CIK 1280452

1,086 managers (1,124 13F filers) reported a position in MPWR shares at 2026-03-31, 47,264,132 shares in all. 159 filers opened a position and 104 filers sold out during the quarter.

Managers
1,086
13F filers
1,124
New
159
Added
385
Reduced
408
Sold out
104
Shares held by filers
47,264,132

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, Q1 2026

Filers in the available 13F reports with a share position at 2026-03-31, 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
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…734$802K0.02%-1513F-HR/ATimelineGroup
Cannon Advisors, Inc.732$800K0.59%+1513F-HRTimeline
Blue Trust, Inc.730$798K0.01%+1513F-HRTimeline
Arkadios Wealth Advisors728$797K0.01%-3913F-HRTimeline
Portside Wealth Group, LLC721$788K0.11%-12013F-HRTimeline
MONETA GROUP INVESTMENT ADVISORS LLC719$787K0.01%-4813F-HRTimeline
Fiduciary Trust Coin group Fiduciary Trust Co716$783K0.01%+213F-HRTimelineGroup
Fortress Financial Solutions, LLC709$775K0.81%-613F-HRTimeline
CENTRAL TRUST Co701$766K0.02%+1013F-HRTimeline
BROWN BROTHERS HARRIMAN & COin group BROWN BROTHERS HARRIMAN & CO699$764K<0.01%+33813F-HRTimelineGroup
TWIN CAPITAL MANAGEMENT INC695$760K0.1%+29213F-HRTimeline
JT Stratford LLC693$758K0.1%-3013F-HRTimeline
Marex Group Ltdin group Marex Group Ltd692$757K0.01%+26013F-HRTimelineGroup
Generali Asset Management SPA SGR692$757K0.02%new13F-HRTimeline
Wilmington Savings Fund Society, FSB686$750K0.02%-1013F-HRTimeline
Integrated Advisors Network LLC682$746K0.04%-15213F-HRTimeline
J2 Capital Management Inc681$745K0.51%-4713F-HRTimeline
Versant Capital Management, Inc676$739K0.07%+12013F-HRTimeline
Whalen Wealth Management Inc.671$733K0.39%-1,06013F-HRTimeline
Crestwood Advisors Group, LLC665$727K0.01%+15613F-HRTimeline
Mutual Advisors, LLC665$727K0.02%+14513F-HRTimeline
111 Capital664$726K0.18%+15813F-HRTimeline
Annis Gardner Whiting Capital Advisors,…650$711K0.11%+113F-HRTimeline
Yorktown Management & Research Co Inc650$711K0.59%013F-HRTimeline
AIA Group Ltdin group AIA Group Ltd650$711K0.01%-30913F-HRTimelineGroup
Prescott Group Capital Management, L.L.…647$707K0.07%013F-HRTimeline
George Kaiser Family Foundation647$707K0.08%013F-HRTimeline
Savant Capital, LLCin group Savant Capital, LLC644$704K<0.01%+13213F-HRTimelineGroup
ELEVATION POINT WEALTH PARTNERS, LLC642$703K0.02%+39013F-HRTimeline
OAK RIDGE INVESTMENTS LLC631$690K0.05%+513F-HRTimeline
MCCARTER PRIVATE WEALTH SERVICES LLC626$684K0.3%-5413F-HRTimeline
Sovran Advisors, LLC423$683K0.05%-813F-HRTimeline
WIREGRASS INVESTMENT MANAGEMENT LLC624$683K0.57%+1813F-HRTimeline
BRIGHTON JONES LLC623$681K0.02%new13F-HR/ATimeline
Mach-1 Financial Group, LLC612$669K0.24%-32613F-HRTimeline
TrueMark Investments, LLCin group TrueMark Investments, LLC611$668K0.13%new13F-HRTimelineGroup
Independent Advisor Alliance607$664K0.01%+3113F-HRTimeline
V-Square Quantitative Management LLC597$653K0.07%+2513F-HRTimeline
Ballentine Partners, LLC588$643K0.01%+2113F-HRTimeline
Talon Private Wealth, LLC585$640K0.08%13F-HRTimeline
EP Wealth Advisors, LLC580$634K<0.01%+18813F-HRTimeline
Heartland Bank & Trust Co578$632K0.14%+1813F-HRTimeline
Parallel Advisors, LLC577$631K0.01%+6613F-HR/ATimeline
LBP AM SA576$630K0.01%-1,84713F-HRTimeline
Lifeworks Advisors, LLC576$629K0.08%013F-HRTimeline
Clear Creek Financial Management, LLC575$629K0.05%+13313F-HRTimeline
Generali Investments, Management Co LLC571$624K0.15%+31513F-HRTimeline
KINGSWOOD WEALTH ADVISORS, LLC569$622K0.03%-1113F-HRTimeline
SAGESPRING WEALTH PARTNERS, LLC566$619K0.01%+5913F-HRTimeline
Cambria Investment Management, L.P.552$604K0.03%new13F-HRTimeline
Knuff & Co LLC550$601K0.18%013F-HRTimeline
1248 Management, LLC548$600K0.28%new13F-HRTimeline
MOKAN Wealth Management Inc.542$600K0.27%+24813F-HRTimeline
D.A. DAVIDSON & CO.545$596K<0.01%-913F-HRTimeline
BRANDYWINE MANAGERS, LLCin group BRANDYWINE MANAGERS, LLC542$593K0.35%new13F-HRTimelineGroup
Vision Retirement, LLC540$590K0.17%-513F-HRTimeline
Trust Asset Management LLC537$587K0.04%013F-HRTimeline
Advisor OS, LLCin group Advisor OS, LLC537$587K0.04%-38213F-HRTimelineGroup
Avestar Capital, LLC536$586K0.04%+1813F-HRTimeline
Fielder Capital Group LLC532$582K0.13%+1413F-HRTimeline
AE Wealth Management LLC532$582K<0.01%-1,03513F-HRTimeline
Drake & Associates, LLC531$581K0.11%-26213F-HRTimeline
UMB Bank, n.a.530$579K0.01%+1813F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
Valeo Financial Advisors, LLC528$578K0.01%-16313F-HRTimeline
BLUE BELL PRIVATE WEALTH MANAGEMENT, LLC523$572K0.08%new13F-HRTimeline
Smartleaf Asset Management LLC553$554K0.02%+3613F-HRTimeline
GeoWealth Management, LLC503$550K0.02%+28113F-HRTimeline
Capula Management Ltdin group Capula Management Ltd502$549K<0.01%new13F-HRTimelineGroupThe filing omitted confidential holdings, a later amendment may add them.
Vancity Investment Management Ltd501$548K0.09%+4713F-HRTimeline
Hills Bank & Trust Coin group Hills Bank & Trust Co494$540K0.03%-7013F-HRTimelineGroup
Marshall Financial Group, LLC489$535K0.09%-513F-HRTimeline
Coastal Bridge Advisors, LLC488$533K0.04%+213F-HRTimeline
Wellington Grp LLC481$526K0.16%new13F-HRTimeline
KICKSTAND VENTURES, LLC.480$525K0.11%013F-HRTimeline
Legacy Wealth Asset Management, LLC477$522K0.13%-313F-HRTimeline
Total Clarity Wealth Management, Inc.471$515K0.12%+4913F-HRTimeline
Phoenix Financial Ltd.in group Phoenix Financial Ltd.469$513K<0.01%+12013F-HRTimelineGroup
KCM INVESTMENT ADVISORS LLC467$511K0.02%+1013F-HRTimeline
Outlook Wealth Advisors, LLC461$504K0.12%+2213F-HRTimeline
Verdence Capital Advisors LLC459$502K0.03%-22713F-HRTimeline
Truvestments Capital LLC457$500K0.09%+5813F-HRTimeline
BUFFALO BUSINESS & ESTATE SERVICES LTD455$497K0.07%-8413F-HRTimeline
Silverleafe Capital Partners, LLC451$493K0.15%new13F-HRTimeline
Pier Capital, LLC450$492K0.08%-1613F-HRTimeline
BXM Wealth LLC450$492K0.38%013F-HRTimeline
BRIDGES INVESTMENT MANAGEMENT INC449$491K0.01%013F-HRTimeline
71 West Capital Partners448$490K0.02%+10513F-HRTimeline
Covenant Asset Management, LLC447$489K0.1%013F-HRTimeline
MAINSTAY CAPITAL MANAGEMENT LLC /ADV443$484K0.04%-713F-HRTimeline
CI INVESTMENTS INC.in group CI INVESTMENTS INC.443$484K<0.01%+213F-HRTimelineGroup
TFB Advisors LLC442$483K0.25%-5013F-HRTimeline
Xcelsior Advisor Partners LLC440$481K0.18%+7613F-HRTimeline
CIGNA INVESTMENTS INC /NEWin group CIGNA INVESTMENTS INC /NEW437$478K0.07%-1813F-HRTimelineGroup
Kera Capital Partners, Inc.431$471K0.06%-1713F-HRTimeline
MAI Capital Management422$461K<0.01%+5113F-HRTimeline
Sigma Planning Corp414$453K0.01%new13F-HRTimeline
UHLMANN PRICE SECURITIES, LLC413$452K0.03%-1613F-HRTimeline
Spire Wealth Managementin group Spire Wealth Management411$449K0.02%-27813F-HRTimelineGroup
GLR Partners, LLC410$448K0.24%13F-HRTimeline
Beverly Hills Private Wealth, LLC409$447K0.07%-1413F-HRTimeline
Sather Financial Group Inc400$437K0.03%013F-HRTimeline
PIAR LLC400$437K0.37%013F-HRTimeline
Turtle Creek Wealth Advisors, LLC399$436K0.03%+7013F-HRTimeline
AMERICAN NATIONAL BANK & TRUST399$436K0.04%-1413F-HRTimeline
Elevate Capital Advisors, LLC397$434K0.28%new13F-HRTimeline
Guinness Asset Management LTD395$432K0.01%-2813F-HRTimeline
Tributary Capital Management, LLC390$426K0.04%013F-HRTimeline
Savvy Advisors, Inc.388$424K0.01%+16513F-HRTimeline
Western Financial Corp/CA385$421K0.16%new13F-HRTimeline
Bauman Advisory Group, LLC377$412K0.29%new13F-HRTimeline
Livforsakringsbolaget Skandia, Omsesidi…365$399K0.02%013F-HRTimeline
TD Waterhouse Canada Inc.357$399K<0.01%+19213F-HRTimeline
S-Bank Fund Management Ltd363$397K0.06%-1313F-HRTimeline
SILVER OAK SECURITIES, INCORPORATED363$397K0.03%+1413F-HRTimeline
Frank, Rimerman Advisors LLC361$395K0.03%+1813F-HRTimeline
Bridgewater Advisors Inc.247$394K0.02%+413F-HRTimeline
OneAscent Financial Services LLCgroup of 2 filers holding359$393K-252Timeline
EWA, LLC354$387K0.09%+413F-HRTimeline
Ethos Financial Group, LLC353$387K0.03%+2313F-HRTimeline
Dogwood Wealth Management LLC352$385K0.17%-28013F-HRTimeline
FINANCIAL CONSULATE, INC350$383K0.05%-17813F-HRTimeline
Sowell Financial Services LLC347$380K0.01%-613F-HRTimeline
First Affirmative Financial Network346$379K0.15%13F-HR/ATimeline
Oakmont Advisory Group, LLC343$375K0.38%-3313F-HRTimeline
Clearwave Capital, LLC342$374K0.26%new13F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…341$373K<0.01%new13F-HRTimelineGroup
AMG National Trust Bank340$372K0.01%013F-HRTimeline
JOURNEY STRATEGIC WEALTH LLC340$372K0.01%+4313F-HRTimeline
Wealthcare Advisory Partners LLCin group Wealthcare Advisory Partners …338$370K0.01%new13F-HRTimelineGroup
Ausdal Financial Partners, Inc.337$368K0.02%new13F-HRTimeline
Andra AP-fonden335$366K<0.01%-4,96513F-HRTimeline
Checchi Capital Advisers, LLC334$365K0.03%+7013F-HRTimeline
Dorsey & Whitney Trust CO LLC333$365K0.02%+813F-HRTimeline
Moors & Cabot, Inc.330$361K0.02%+1013F-HRTimeline
Simplicity Wealth,LLC327$358K0.02%+5613F-HRTimeline
INSIGNEO ADVISORY SERVICES, LLC327$358K0.03%-18013F-HRTimeline
Supplemental Annuity Collective Trust o…324$354K0.1%new13F-HRTimeline
NorthStar Asset Management LLC /NJ/322$352K0.17%-8013F-HRTimeline
Johnson Financial Group, Inc.in group Johnson Financial Group, Inc.321$352K0.01%+3413F-HRTimelineGroup
Blueshift Asset Management, LLC321$351K0.11%-29313F-HRTimeline
Aigen Investment Management, LP320$350K0.09%new13F-HRTimeline
Ashton Thomas Private Wealth, LLC318$348K0.01%+8413F-HRTimeline
Cresset Asset Management, LLC317$348K<0.01%-4713F-HRTimeline
OneDigital Investment Advisors LLC315$345K<0.01%-5813F-HRTimeline
TigerOak Management, L.L.C.315$344K0.11%013F-HRTimeline
Foundations Investment Advisors, LLC314$343K<0.01%-20913F-HRTimeline
HUB Investment Partners, LLC313$342K0.01%+4413F-HRTimeline
CX Institutional312$341K0.01%+313F-HRTimeline
MJP ASSOCIATES INC /ADV310$339K0.04%-29613F-HRTimeline
WP Advisors, LLC309$338K0.09%-11213F-HRTimeline
Optas, LLC306$335K0.05%-8913F-HRTimeline
SBI Securities Co., Ltd.304$332K0.01%-813F-HRTimeline
MCF Advisors LLC301$330K0.01%+5813F-HRTimeline
SHEETS SMITH WEALTH MANAGEMENT301$329K0.04%013F-HRTimeline
Procyon Advisors, LLC300$328K0.02%+613F-HRTimeline
EQ LLC299$327K0.09%+2013F-HRTimeline
Cornerstone Wealth Group, LLC213$326K0.02%new13F-HRTimeline
Resonant Capital Advisors, LLC296$324K0.02%+4313F-HRTimeline
Vinva Investment Management Ltd320$321K<0.01%new13F-HRTimeline
Walleye Capital LLCin group Walleye Capital LLC293$320K<0.01%+10513F-HR/ATimelineGroup
Pinpoint Asset Management (Singapore) P…293$320K0.08%+29213F-HRTimeline
CoreCap Advisors, LLC290$318K0.01%-70213F-HRTimeline
DAVENPORT & Co LLC290$317K<0.01%+1513F-HRTimeline
New Hampshire Trust290$317K0.06%-5713F-HRTimeline
AlphaCore Capital LLC286$313K0.01%-1713F-HRTimeline
OpenArc Corporate Advisory, LLC284$311K<0.01%+5813F-HRTimeline
SmartHarvest Portfolios, LLC283$309K0.13%-2613F-HRTimeline
Integrated Investment Consultants, LLC283$309K0.07%013F-HRTimeline
Board of the Pension Protection Fund280$306K0.28%new13F-HRTimeline
SageView Advisory Group, LLC276$302K0.01%-2613F-HRTimeline
McAdam, LLC275$300K0.01%+1413F-HRTimeline
Advisory Alpha, LLC274$300K0.01%-16613F-HRTimeline
Concentric Capital Strategies, LP274$300K0.03%new13F-HRTimeline
Premier Path Wealth Partners, LLC274$300K0.04%new13F-HRTimeline
Tuttle Capital Management, LLC272$297K0.49%new13F-HRTimeline
SHARPEPOINT LLC272$297K0.18%+113F-HRTimeline
Koshinski Asset Management, Inc.272$297K0.02%new13F-HRTimeline
GLOBEFLEX CAPITAL L P271$296K0.04%013F-HRTimeline
INTERNATIONAL ASSETS INVESTMENT MANAGEM…263$294K0.02%-1013F-HRTimeline
West Family Investments, Inc.268$293K0.1%-213F-HRTimeline
Keating Financial Advisory Services, In…268$293K0.05%-1,17713F-HRTimeline
Gallacher Capital Management LLC265$290K0.11%new13F-HRTimeline
OFI INVEST ASSET MANAGEMENT305$289K<0.01%+7713F-HRTimeline
Royal Fund Management, LLC264$289K0.03%+713F-HRTimeline
Gladstone Institutional Advisory LLC264$289K0.01%013F-HRTimeline
Verition Fund Management LLC263$288K<0.01%-5,66013F-HRTimeline
Coyle Financial Counsel LLC261$285K0.06%+313F-HRTimeline
DRIVE WEALTH MANAGEMENT, LLC260$285K0.06%+3513F-HRTimeline
Naviter Wealth, LLC259$284K0.04%+513F-HRTimeline
Tradition Wealth Management, LLC259$283K0.02%+413F-HRTimeline
ANGELES WEALTH MANAGEMENT, LLCin group ANGELES WEALTH MANAGEMENT, LLC258$283K0.02%new13F-HRTimelineGroup
Nilsine Partners, LLC177$281K0.02%new13F-HRTimeline
Sunflower Bank, N.A.257$281K0.07%+2913F-HRTimeline
CARY STREET PARTNERS ASSET MANAGEMENT L…group of 2 filers holding257$281K+14Timeline
Composition Wealth, LLC255$279K<0.01%-3013F-HRTimeline
CATALYST FINANCIAL PARTNERS LLC252$276K0.03%+1713F-HRTimeline
L2 Asset Management, LLC249$272K0.03%+1913F-HRTimeline
17 CAPITAL PARTNERS, LLC249$272K0.14%+2513F-HRTimeline
Maridea Wealth Management LLC248$271K0.04%new13F-HRTimeline
TABR Capital Management, LLC246$269K0.25%new13F-HRTimeline