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Disclosery

MPWR MONOLITHIC PWR SYS INC

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Stock (common), issuer CIK 1280452

887 managers (910 13F filers) reported a position in MPWR shares at 2025-06-30, 47,350,529 shares in all. 123 filers opened a position and 84 filers sold out during the quarter.

Managers
887
13F filers
910
New
123
Added
378
Reduced
302
Sold out
84
Shares held by filers
47,350,529

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 2025

Filers in the available 13F reports with a share position at 2025-06-30, 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
Avion Wealth14$10K<0.01%+913F-HR/ATimeline
Sachetta, LLC13$9.52K<0.01%-213F-HRTimeline
Fortitude Family Office, LLC13$9.51K<0.01%+413F-HRTimeline
Sunbelt Securities, Inc.16$9.47K<0.01%+413F-HRTimeline
ATWOOD & PALMER INC12$8.78K<0.01%013F-HRTimeline
WEBSTER BANK, N. A.12$8.78K<0.01%013F-HRTimeline
North Capital, Inc.12$8.78K0.01%013F-HRTimeline
EASTERN BANK11$8.04K<0.01%-213F-HRTimeline
Cetera Trust Company, N.A11$8.04K<0.01%013F-HRTimeline
CBIZ Investment Advisory Services, LLC10$7.33K<0.01%+1013F-HRTimeline
Howard Hughes Medical Institute10$7.31K<0.01%new13F-HRTimeline
BERKSHIRE CAPITAL HOLDINGS INC10$7.31K<0.01%013F-HRTimeline
Financial Management Professionals, Inc.9$6.6K<0.01%013F-HRTimeline
Clearstead Trust, LLC9$6.58K<0.01%013F-HRTimeline
WealthTrak Capital Management LLC9$6.58K0.01%+413F-HRTimeline
LOGAN CAPITAL MANAGEMENT INC9$6.58K<0.01%013F-HRTimeline
Sound Income Strategies, LLC9$6.58K<0.01%013F-HRTimeline
Beacon Capital Management, LLC8$5.88K<0.01%013F-HRTimeline
Financial Network Wealth Advisors LLC8$5.86K0.01%013F-HRTimeline
First Pacific Financial8$5.85K<0.01%new13F-HRTimeline
CROWLEY WEALTH MANAGEMENT, INC.8$5.85K0.01%013F-HRTimeline
Cornerstone Planning Group LLC7$5.62K<0.01%+113F-HRTimeline
TOTAL INVESTMENT MANAGEMENT INC7$5.12K<0.01%new13F-HRTimeline
Concord Wealth Partnersin group Concord Wealth Partners7$5.12K<0.01%+113F-HRTimelineGroup
WealthCollab, LLC7$5.12K<0.01%+213F-HRTimeline
Westside Investment Management, Inc.6$4.48K<0.01%013F-HRTimeline
BARTLETT & CO. WEALTH MANAGEMENT LLC6$4.4K<0.01%new13F-HRTimeline
Mowery & Schoenfeld Wealth Management, …6$4.4K0.01%-113F-HRTimeline
PROFFITT & GOODSON INC6$4.39K<0.01%013F-HRTimeline
Legacy Investment Solutions, LLC6$4.39K<0.01%13F-HRTimeline
Legacy Wealth Managment, LLC/IDin group Legacy Wealth Managment, LLC/…6$4.39K<0.01%013F-HRTimelineGroup
Activest Wealth Management6$4.39K<0.01%-213F-HRTimeline
Whipplewood Advisors, LLC6$4.39K<0.01%-78513F-HRTimeline
Hughes Financial Services, LLC5$4.03K<0.01%+213F-HRTimeline
Smithfield Trust Co5$4K<0.01%013F-HRTimeline
Cranbrook Wealth Management, LLC5$3.8K<0.01%+313F-HRTimeline
Prestige Wealth Management Group LLC5$3.67K<0.01%013F-HR/ATimeline
Garde Capital, Inc.5$3.66K<0.01%013F-HRTimeline
HOEY INVESTMENTS, INC5$3.66K<0.01%new13F-HRTimeline
DiNuzzo Private Wealth, Inc.5$3.66K<0.01%+313F-HRTimeline
PFS Partners, LLC5$3.66K<0.01%new13F-HRTimeline
Bruce G. Allen Investments, LLC5$3.66K<0.01%013F-HRTimeline
Kilter Group LLC5$3.66K<0.01%new13F-HRTimeline
Abound Wealth Management5$3.37K<0.01%-113F-HRTimeline
Dunhill Financial, LLC4$3.25K<0.01%-213F-HRTimeline
Kozak & Associates, Inc.4$3.03K<0.01%013F-HRTimeline
LANARK FINANCIAL, INC.5$3K<0.01%013F-HRTimeline
State of Wyoming4$2.93K<0.01%new13F-HRTimeline
Nova Wealth Management, Inc.3$2.52K<0.01%new13F-HRTimeline
Dogwood Wealth Management LLC3$2.28K<0.01%+113F-HRTimeline
ORG Partners LLC3$2.24K<0.01%-513F-HRTimeline
ALBION FINANCIAL GROUP /UT3$2.19K<0.01%013F-HRTimeline
CREATIVE FINANCIAL DESIGNS INC /ADV3$2.19K<0.01%-413F-HRTimeline
LONGFELLOW INVESTMENT MANAGEMENT CO LLC3$2.19K<0.01%013F-HRTimeline
Ancora Advisors LLCin group Ancora Advisors LLC3$2.19K<0.01%+213F-HRTimelineGroup
Tortoise Investment Management, LLC3$2.19K<0.01%new13F-HRTimeline
Grove Bank & Trust3$2.19K<0.01%new13F-HRTimeline
Principia Wealth Advisory, LLC3$2.19K<0.01%013F-HRTimeline
Crews Bank & Trust3$2.19K<0.01%013F-HRTimeline
Capital Advisors, Ltd. LLC3$2K<0.01%013F-HRTimeline
BROWN, LISLE/CUMMINGS, INC.3$1.9K<0.01%+113F-HRTimeline
Bay Harbor Wealth Management, LLC2$1.47K<0.01%+113F-HRTimeline
Plante Moran Financial Advisors, LLC2$1.46K<0.01%new13F-HRTimeline
Princeton Global Asset Management LLC2$1.46K<0.01%new13F-HRTimeline
Physician Wealth Advisors, Inc.2$1.46K<0.01%new13F-HRTimeline
Trifecta Capital Advisors, LLC2$1.46K<0.01%013F-HRTimeline
Pineridge Advisors LLC2$1.46K<0.01%new13F-HRTimeline
Parkworth Wealth Management, Inc.2$1.46K<0.01%+113F-HRTimeline
Rialto Wealth Management, LLC2$1.46K<0.01%new13F-HRTimeline
Smallwood Wealth Investment Management,…2$1.46K<0.01%new13F-HRTimeline
Colonial Trust Co / SCin group Colonial Trust Advisors2$1.27K<0.01%-213F-HRTimelineGroup
PEAK6 LLCin group PEAK6 LLC1$783<0.01%-113F-HR/ATimelineGroup
DecisionPoint Financial, LLC1$747<0.01%new13F-HRTimeline
IMA Advisory Services, Inc.1$733<0.01%new13F-HRTimeline
Quaker Wealth Management, LLC1$732<0.01%new13F-HRTimeline
TFC Financial Management, Inc.1$732<0.01%-113F-HRTimeline
SJS Investment Consulting Inc.1$732<0.01%-713F-HRTimeline
Stephens Consulting, LLC1$732<0.01%new13F-HRTimeline
HORIZON FINANCIAL SERVICES, LLC1$731<0.01%013F-HRTimeline
First Command Advisory Services, Inc.1$731<0.01%013F-HRTimeline
Bare Financial Services, Inc1$731<0.01%013F-HRTimeline
Pinpoint Asset Management (Singapore) P…1$731<0.01%13F-HRTimeline
West Oak Capital, LLC55$4020.02%013F-HRTimeline
Quest 10 Wealth Builders, Inc.0$344<0.01%013F-HRTimelineAmount filed as zero, left out of ratios.
OGOREK ANTHONY JOSEPH /NY/ /ADV0$00%013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.
CONCOURSE FINANCIAL GROUP SECURITIES, I…0$0013F-HRTimelineValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.
INTACT INVESTMENT MANAGEMENT INC.in group INTACT INVESTMENT MANAGEMENT …0$00%-6,20013F-HRTimelineGroupValue filed as zero, left out of ratios. Amount filed as zero, left out of ratios.