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MPWR US​
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Monolithic Power Systems, Inc.(MPWR US)

$1,390.54-56.863.93%Ext:$1,378.78-11.760.85%(After Hours · 00:22:24 UTC)
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ProfileEntity Structure

Documents

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Categorized
Logo
  • Home
  • AI Agent
  • Annotations
  • Files
  • Pricing and plans
  • BlogAboutContact us
    APIMCP
    Terms of servicePrivacy policy

  • Get the full experience

    We save the real magic for signed-in users.

MPWR US​
HomeStock ScreenerDocument SearchChartingWatchlistsRecent Filings

Monolithic Power Systems, Inc.(MPWR US)

$1,390.54-56.863.93%Ext:$1,378.78-11.760.85%(After Hours · 00:22:24 UTC)
Ask AI
Doc SearchProfileEntity StructureFinancialsChartingShort InterestEmployees

Overview

ProfileEntity Structure

Documents

SEC Filings
Categorized
Chronological
By Owner

Financials & Metrics

FinancialsChartingShort InterestEmployees
Chronological
By Owner

Financials & Metrics

FinancialsChartingShort InterestEmployees

SEC Filings by Owner

SEC Filings by Owner

Insider Ownership

Hsing Michael(350)

  • Form 4PRIMARY DOCUMENT30 Sep
  • Form 4PRIMARY DOCUMENT20 May
  • Form 4PRIMARY DOCUMENT17 Feb
  • Form 4PRIMARY DOCUMENT13 Feb
  • Form 4PRIMARY DOCUMENT12 Feb
  • Form 4PRIMARY DOCUMENT10 Feb
  • Form 4PRIMARY DOCUMENT5 Feb
  • Form 4PRIMARY DOCUMENT11 Dec 2025
  • Form 4PRIMARY DOCUMENT13 Nov 2025
  • Form 4PRIMARY DOCUMENT13 Nov 2025

Xiao Deming(335)

  • Form 4PRIMARY DOCUMENT8 May
  • Form 4PRIMARY DOCUMENT10 Feb
  • Form 4PRIMARY DOCUMENT5 Feb
  • Form 4PRIMARY DOCUMENT31 Oct 2025
  • Form 4PRIMARY DOCUMENT28 Oct 2025
  • Form 4PRIMARY DOCUMENT12 Aug 2025
  • Form 4PRIMARY DOCUMENT4 Aug 2025
  • Form 4PRIMARY DOCUMENT12 Feb 2025
  • Form 4PRIMARY DOCUMENT13 Nov 2024
  • Form 4PRIMARY DOCUMENT29 Aug 2024

Sciammas Maurice(322)

  • Form 4PRIMARY DOCUMENT5 Nov
  • Form 4PRIMARY DOCUMENT6 Aug
  • Form 4PRIMARY DOCUMENT5 Aug
  • Form 4PRIMARY DOCUMENT17 Jul
  • Form 4PRIMARY DOCUMENT6 Jul
  • Form 4PRIMARY DOCUMENT3 Jun
  • Form 4PRIMARY DOCUMENT2 Jun
  • Form 4PRIMARY DOCUMENT19 May
  • Form 4PRIMARY DOCUMENT15 May
  • Form 4PRIMARY DOCUMENT6 May

Moyer James C(272)

  • Form 4PRIMARY DOCUMENT29 Aug 2024
  • Form 4PRIMARY DOCUMENT12 Aug 2024
  • Form 4PRIMARY DOCUMENT14 Feb 2024
  • Form 4PRIMARY DOCUMENT12 Feb 2024
  • Form 4PRIMARY DOCUMENT8 Feb 2024
  • Form 4PRIMARY DOCUMENT20 Nov 2023
  • Form 4PRIMARY DOCUMENT8 Feb 2023
  • Form 4PRIMARY DOCUMENT12 Dec 2022
  • Form 4PRIMARY DOCUMENT26 Sep 2022
  • Form 4PRIMARY DOCUMENT9 Feb 2022

Tseng Saria(245)

  • Form 4PRIMARY DOCUMENT2 Sep
  • Form 4PRIMARY DOCUMENT29 May
  • Form 4PRIMARY DOCUMENT27 May
  • Form 4PRIMARY DOCUMENT10 Apr
  • Form 4PRIMARY DOCUMENT8 Apr
  • Form 4PRIMARY DOCUMENT3 Apr
  • Form 4PRIMARY DOCUMENT1 Apr
  • Form 4PRIMARY DOCUMENT10 Feb
  • Form 4PRIMARY DOCUMENT5 Feb
  • Form 4PRIMARY DOCUMENT30 Dec 2025

BLEGEN THEODORE(163)

  • Form 4PRIMARY DOCUMENT10 Feb
  • Form 4PRIMARY DOCUMENT5 Feb
  • Form 4PRIMARY DOCUMENT4 Feb
  • Form 4PRIMARY DOCUMENT6 Jan
  • Form 4PRIMARY DOCUMENT2 Dec 2025
  • Form 4PRIMARY DOCUMENT4 Nov 2025
  • Form 4PRIMARY DOCUMENT31 Oct 2025
  • Form 4PRIMARY DOCUMENT28 Oct 2025
  • Form 4PRIMARY DOCUMENT1 Oct 2025
  • Form 4PRIMARY DOCUMENT3 Sep 2025

CHANG KUO WEI HERBERT(122)

  • Form 4PRIMARY DOCUMENT25 Aug
  • Form 4PRIMARY DOCUMENT13 Aug
  • Form 4PRIMARY DOCUMENT5 Feb
  • Form 4PRIMARY DOCUMENT25 Nov 2025
  • Form 4PRIMARY DOCUMENT24 Nov 2025
  • Form 4PRIMARY DOCUMENT13 May 2025
  • Form 4PRIMARY DOCUMENT12 May 2025
  • Form 4PRIMARY DOCUMENT9 May 2025
  • Form 4PRIMARY DOCUMENT6 Feb 2025
  • Form 4PRIMARY DOCUMENT15 Aug 2024

Rao Meera(86)

  • Form 4PRIMARY DOCUMENT9 Feb 2016
  • Form 4PRIMARY DOCUMENT4 Feb 2016
  • Form 4PRIMARY DOCUMENT5 Jan 2016
  • Form 4PRIMARY DOCUMENT21 Dec 2015
  • Form 4PRIMARY DOCUMENT13 Nov 2015
  • Form 4PRIMARY DOCUMENT10 Nov 2015
  • Form 4PRIMARY DOCUMENT5 Nov 2015
  • Form 4PRIMARY DOCUMENT9 Oct 2015
  • Form 4PRIMARY DOCUMENT11 Aug 2015
  • Form 4PRIMARY DOCUMENT6 Aug 2015

Ueunten Paul(57)

  • Form 4PRIMARY DOCUMENT6 Feb 2013
  • Form 4PRIMARY DOCUMENT11 Jan 2013
  • Form 4PRIMARY DOCUMENT14 Nov 2012
  • Form 4PRIMARY DOCUMENT9 Nov 2012
  • Form 4PRIMARY DOCUMENT5 Nov 2012
  • Form 4PRIMARY DOCUMENT29 Aug 2012
  • Form 4PRIMARY DOCUMENT10 Aug 2012
  • Form 4PRIMARY DOCUMENT3 Aug 2012
  • Form 4PRIMARY DOCUMENT26 Jun 2012
  • Form 4PRIMARY DOCUMENT14 May 2012

Zhou Jeff(52)

  • Form 4PRIMARY DOCUMENT27 May
  • Form 4PRIMARY DOCUMENT6 May
  • Form 4PRIMARY DOCUMENT5 Feb
  • Form 4PRIMARY DOCUMENT28 Aug 2025
  • Form 4PRIMARY DOCUMENT15 Aug 2025
  • Form 4PRIMARY DOCUMENT13 Aug 2025
  • Form 4PRIMARY DOCUMENT6 Feb 2025
  • Form 4PRIMARY DOCUMENT22 May 2024
  • Form 4PRIMARY DOCUMENT13 Feb 2024
  • Form 4PRIMARY DOCUMENT8 Feb 2024

Neely Rick(51)

  • Form 4PRIMARY DOCUMENT5 Jan 2011
  • Form 4PRIMARY DOCUMENT8 Dec 2010
  • Form 4PRIMARY DOCUMENT12 Nov 2010
  • Form 4PRIMARY DOCUMENT13 Aug 2010
  • Form 4PRIMARY DOCUMENT13 Aug 2010
  • Form 4PRIMARY DOCUMENT12 Jul 2010
  • Form 4PRIMARY DOCUMENT8 Jul 2010
  • Form 4PRIMARY DOCUMENT16 Jun 2010
  • Form 4PRIMARY DOCUMENT1 Jun 2010
  • Form 4PRIMARY DOCUMENT12 May 2010

Lee Victor K(40)

  • Form 4PRIMARY DOCUMENT11 Feb
  • Form 4PRIMARY DOCUMENT5 Feb
  • Form 4PRIMARY DOCUMENT6 Jan
  • Form 4PRIMARY DOCUMENT29 Dec 2025
  • Form 4PRIMARY DOCUMENT6 Feb 2025
  • Form 4PRIMARY DOCUMENT1 Jul 2024
  • Form 4PRIMARY DOCUMENT8 Feb 2024
  • Form 4PRIMARY DOCUMENT8 Feb 2023
  • Form 4PRIMARY DOCUMENT9 Feb 2022
  • Form 4PRIMARY DOCUMENT4 Feb 2021

SMITH- PILKINGTON KAREN A(18)

  • Form 4PRIMARY DOCUMENT29 Apr 2016
  • Form 4PRIMARY DOCUMENT23 Feb 2015
  • Form 4PRIMARY DOCUMENT10 Feb 2015
  • Form 4PRIMARY DOCUMENT25 Feb 2014
  • Form 4PRIMARY DOCUMENT13 Feb 2014
  • Form 4PRIMARY DOCUMENT29 Oct 2013
  • Form 4PRIMARY DOCUMENT9 Aug 2013
  • Form 4PRIMARY DOCUMENT4 Mar 2013
  • Form 4PRIMARY DOCUMENT13 Feb 2013
  • Form 4PRIMARY DOCUMENT11 Feb 2013

Chiocchi Adriana(17)

  • Form 4PRIMARY DOCUMENT5 Oct 2009
  • Form 4PRIMARY DOCUMENT5 Aug 2009
  • Form 4PRIMARY DOCUMENT4 Aug 2009
  • Form 4/APRIMARY DOCUMENT11 Jun 2009
  • Form 4PRIMARY DOCUMENT3 Jun 2009
  • Form 4PRIMARY DOCUMENT3 Feb 2009
  • Form 5PRIMARY DOCUMENT12 Feb 2009
  • Form 4PRIMARY DOCUMENT28 Oct 2008
  • Form 4PRIMARY DOCUMENT27 Feb 2009
  • Form 4/APRIMARY DOCUMENT28 Oct 2008

Elmiger Eugen J(17)

  • Form 4PRIMARY DOCUMENT8 May
  • Form 4PRIMARY DOCUMENT5 Feb
  • Form 4PRIMARY DOCUMENT2 Sep 2025
  • Form 4PRIMARY DOCUMENT6 Feb 2025
  • Form 4PRIMARY DOCUMENT8 Feb 2024
  • Form 4PRIMARY DOCUMENT8 Feb 2023
  • Form 4PRIMARY DOCUMENT9 Feb 2022
  • Form 4PRIMARY DOCUMENT4 Feb 2021
  • Form 4PRIMARY DOCUMENT14 Feb 2020
  • Form 4PRIMARY DOCUMENT12 Feb 2019

PADVAL UMESH(16)

  • Form 4PRIMARY DOCUMENT17 Jun 2011
  • Form 4PRIMARY DOCUMENT10 Feb 2011
  • Form 4PRIMARY DOCUMENT9 Feb 2010
  • Form 4PRIMARY DOCUMENT31 Aug 2009
  • Form 4PRIMARY DOCUMENT27 Aug 2009
  • Form 4PRIMARY DOCUMENT18 Feb 2009
  • Form 4PRIMARY DOCUMENT13 Aug 2008
  • Form 4PRIMARY DOCUMENT22 May 2008
  • Form 4PRIMARY DOCUMENT5 Sep 2007
  • Form 4PRIMARY DOCUMENT27 Aug 2007

MCBURNIE DOUGLAS M(15)

  • Form 4PRIMARY DOCUMENT23 May 2014
  • Form 4PRIMARY DOCUMENT20 Feb 2014
  • Form 4PRIMARY DOCUMENT13 Feb 2014
  • Form 4PRIMARY DOCUMENT4 Mar 2013
  • Form 4PRIMARY DOCUMENT25 Feb 2013
  • Form 4PRIMARY DOCUMENT13 Feb 2013
  • Form 4PRIMARY DOCUMENT11 Feb 2013
  • Form 4PRIMARY DOCUMENT16 Feb 2012
  • Form 4PRIMARY DOCUMENT10 Feb 2011
  • Form 4PRIMARY DOCUMENT9 Feb 2010

EARHART ALAN L(10)

  • Form 4PRIMARY DOCUMENT18 Feb 2009
  • Form 4PRIMARY DOCUMENT8 Aug 2008
  • Form 4PRIMARY DOCUMENT22 May 2008
  • Form 4PRIMARY DOCUMENT21 Aug 2007
  • Form 4PRIMARY DOCUMENT24 May 2007
  • Form 4PRIMARY DOCUMENT18 May 2007
  • Form 4PRIMARY DOCUMENT23 Feb 2007
  • Form 4PRIMARY DOCUMENT22 Jun 2006
  • Form 4PRIMARY DOCUMENT30 Dec 2005
  • Form 3Initial statement of beneficial ownership18 Nov 2004

DEAN ROBERT W II(8)

  • Form 4PRIMARY DOCUMENT26 Aug
  • Form 4PRIMARY DOCUMENT19 Aug
  • Form 4PRIMARY DOCUMENT6 Aug
  • Form 4PRIMARY DOCUMENT28 Jul
  • Form 4PRIMARY DOCUMENT28 May
  • Form 4PRIMARY DOCUMENT20 May
  • Form 4PRIMARY DOCUMENT15 May
  • Form 3PRIMARY DOCUMENT9 Mar

Martinez Carintia(8)

  • Form 4PRIMARY DOCUMENT5 Feb
  • Form 4PRIMARY DOCUMENT23 Sep 2025
  • Form 4PRIMARY DOCUMENT6 Feb 2025
  • Form 4PRIMARY DOCUMENT8 Feb 2024
  • Form 4PRIMARY DOCUMENT8 Feb 2023
  • Form 4PRIMARY DOCUMENT9 Feb 2022
  • Form 4PRIMARY DOCUMENT1 Jun 2021
  • Form 3PRIMARY DOCUMENT1 Jun 2021

Jones Jim J III(6)

  • Form 4PRIMARY DOCUMENT23 Jun 2006
  • Form 4PRIMARY DOCUMENT14 Nov 2005
  • Form 4PRIMARY DOCUMENT10 Nov 2005
  • Form 4PRIMARY DOCUMENT23 Sep 2005
  • Form 4PRIMARY DOCUMENT29 Nov 2004
  • Form 3PRIMARY DOCUMENT18 Nov 2004

Wynne Eileen(6)

  • Form 4PRIMARY DOCUMENT8 May
  • Form 4PRIMARY DOCUMENT5 Feb
  • Form 4PRIMARY DOCUMENT6 Feb 2025
  • Form 4PRIMARY DOCUMENT8 Feb 2024
  • Form 4PRIMARY DOCUMENT9 Feb 2023
  • Form 3PRIMARY DOCUMENT9 Feb 2023

CHRISTOFFERSEN TIM(4)

  • Form 4PRIMARY DOCUMENT8 Sep 2005
  • Form 4Statement of changes in beneficial ownership10 May 2005
  • Form 4PRIMARY DOCUMENT17 Aug 2005
  • Form 3Initial statement of beneficial ownership18 Nov 2004

TAI KENNETH(2)

  • Form 4Statement of changes in beneficial ownership24 Nov 2004
  • Form 3Initial statement of beneficial ownership18 Nov 2004

INVESTAR CAPITAL INC(2)

  • Form 4Statement of changes in beneficial ownership24 Nov 2004
  • Form 3Initial statement of beneficial ownership18 Nov 2004

INVESTAR BURGEON VENTURE CAPITAL INC(2)

  • Form 4Statement of changes in beneficial ownership24 Nov 2004
  • Form 3Initial statement of beneficial ownership18 Nov 2004

INVESTAR DAYSPRING VENTURE CAPITAL INC(2)

  • Form 4Statement of changes in beneficial ownership24 Nov 2004
  • Form 3Initial statement of beneficial ownership18 Nov 2004

INVESTAR EXCELSUS VENTURE CAPITAL INTL INC LDC(2)

  • Form 4Statement of changes in beneficial ownership24 Nov 2004
  • Form 3Initial statement of beneficial ownership18 Nov 2004

FOREFRONT VENTURE PARTNERS LP(2)

  • Form 4Statement of changes in beneficial ownership24 Nov 2004
  • Form 3Initial statement of beneficial ownership18 Nov 2004

BAVP, L.P.(2)

  • Form 4PRIMARY DOCUMENT29 Nov 2004
  • Form 3PRIMARY DOCUMENT18 Nov 2004

Forefront Associates LLC(2)

  • Form 4Statement of changes in beneficial ownership24 Nov 2004
  • Form 3Initial statement of beneficial ownership18 Nov 2004

InveStar Semiconductor Development Fund Inc(2)

  • Form 4Statement of changes in beneficial ownership24 Nov 2004
  • Form 3Initial statement of beneficial ownership18 Nov 2004

InveStar Semiconductor Development Fund Inc (II) LDC(2)

  • Form 4Statement of changes in beneficial ownership24 Nov 2004
  • Form 3Initial statement of beneficial ownership18 Nov 2004

Balow Frank Anthony III(2)

  • Form 4PRIMARY DOCUMENT05:09PM
  • Form 3PRIMARY DOCUMENT29 Oct

Hsing Sharon(1)

  • Form 3Initial statement of beneficial ownership18 Nov 2004

Moyer Frances K(1)

  • Form 3Initial statement of beneficial ownership18 Nov 2004

≥5% Ownership

FMR LLC(19)

  • SC 13G/AMonolithic Power Systems, Inc.5 Nov
  • SC 13G/AMonolithic Power Systems Inc8 Jul
  • SC 13G/AMonolithic Power Systems Inc5 Feb
  • SC 13G/AMonolithic Power Systems Inc12 Nov 2024
  • SC 13GMonolithic Power Systems Inc9 Feb 2024
  • SC 13G/AMonolithic Power Systems Inc13 Feb 2019
  • SC 13G/AMonolithic Power Systems Inc13 Feb 2018
  • SC 13G/AMonolithic Power Systems Inc14 Feb 2017
  • SC 13G/AMonolithic Power Systems Inc12 Feb 2016
  • SC 13G/AMonolithic Power Systems Inc13 Feb 2015

BlackRock Inc.(18)

  • SC 13G/AMonolithic Power Systems Inc24 Jan 2024
  • SC 13G/AMonolithic Power Systems Inc26 Jan 2023
  • SC 13GMonolithic Power Systems Inc20 Jan 2023
  • SC 13G/AMonolithic Power Systems Inc28 Jan 2022
  • SC 13G/AMonolithic Power Systems Inc26 Jan 2021
  • SC 13G/AMonolithic Power Systems Inc4 Feb 2020
  • SC 13G/AMonolithic Power Systems Inc7 Jun 2019
  • SC 13G/AMonolithic Power Systems Inc6 Feb 2019
  • SC 13G/AMonolithic Power Systems Inc19 Jan 2018
  • SC 13G/AMonolithic Power Systems Inc8 Feb 2017

VANGUARD GROUP INC(16)

  • SC 13G/AMonolithic Power Systems Inc27 Mar
  • SC 13G/AMonolithic Power Systems Inc29 Jul 2025
  • SC 13G/AMonolithic Power Systems Inc13 Feb 2024
  • SC 13G/AMonolithic Power Systems Inc9 Feb 2023
  • SC 13G/AMonolithic Power Systems Inc10 Feb 2022
  • SC 13G/AMonolithic Power Systems Inc10 Mar 2021
  • SC 13G/AMonolithic Power Systems Inc10 Feb 2021
  • SC 13G/AMonolithic Power Systems Inc12 Feb 2020
  • SC 13G/AMonolithic Power Systems Inc11 Feb 2019
  • SC 13G/AMonolithic Power Systems Inc9 Feb 2018

SELIGMAN J & W & CO INC /NY/(9)

  • SC 13G/AMonolithic Power Systems Inc9 Apr 2008
  • SC 13GMonolithic Power Systems Inc28 Jan 2008
  • SC 13G/AMonolithic Power Systems Inc13 Feb 2007
  • SC 13G/AMonolithic Power Systems Inc1 Sep 2006
  • SC 13G/AMonolithic Power Systems Inc10 May 2006
  • SC 13G/AMonolithic Power Systems Inc6 Mar 2006
  • SC 13G/AMonolithic Power Systems Inc13 Feb 2006
  • SC 13G/AMonolithic Power Systems Inc13 Dec 2005
  • SC 13GMonolithic Power Systems Inc12 Aug 2005

WELLS FARGO & CO/MN(7)

  • SC 13G/AMonolithic Power Systems Inc10 May 2011
  • SC 13G/AMonolithic Power Systems Inc20 Jan 2011
  • SC 13G/AMonolithic Power Systems Inc11 Jun 2010
  • SC 13GMonolithic Power Systems Inc21 Jan 2010
  • SC 13G/AMonolithic Power Systems Inc9 Mar 2009
  • SC 13G/AMonolithic Power Systems Inc2 Feb 2009
  • SC 13GMonolithic Power Systems Inc12 Nov 2008

BLAIR WILLIAM & CO/IL(5)

  • SC 13G/AMonolithic Power Systems Inc4 Feb 2013
  • SC 13G/AMonolithic Power Systems Inc7 Aug 2012
  • SC 13G/AMonolithic Power Systems Inc30 Jan 2012
  • SC 13G/AMonolithic Power Systems Inc10 May 2011
  • SC 13GMonolithic Power Systems Inc8 Feb 2011

COLUMBIA WANGER ASSET MANAGEMENT LLC(5)

  • SC 13G/AMonolithic Power Systems Inc3 Feb 2014
  • SC 13G/AMonolithic Power Systems Inc14 Feb 2013
  • SC 13GMonolithic Power Systems Inc10 Feb 2012
  • SC 13G/AMonolithic Power Systems Inc10 Feb 2011
  • SC 13GMonolithic Power Systems Inc1 Feb 2010

CHANG KUO WEI HERBERT(5)

  • SC 13GMonolithic Power Systems Inc26 Jan 2009
  • SC 13GMonolithic Power Systems Inc14 Feb 2008
  • SC 13GMonolithic Power Systems Inc14 Feb 2007
  • SC 13GMonolithic Power Systems Inc14 Feb 2006
  • SC 13GMonolithic Power Systems Inc14 Feb 2005

ARTIS CAPITAL MANAGEMENT, L.P.(5)

  • SC 13G/AMonolithic Power Systems Inc17 Feb 2009
  • SC 13GMonolithic Power Systems Inc14 Feb 2008
  • SC 13G/AMonolithic Power Systems Inc10 Oct 2007
  • SC 13G/AMonolithic Power Systems Inc14 Feb 2007
  • SC 13GMonolithic Power Systems Inc9 Nov 2006

Moyer James C(5)

  • SC 13GMonolithic Power Systems Inc26 Jan 2009
  • SC 13GMonolithic Power Systems Inc14 Feb 2008
  • SC 13GMonolithic Power Systems Inc7 Feb 2007
  • SC 13GMonolithic Power Systems Inc14 Feb 2006
  • SC 13GMonolithic Power Systems Inc14 Feb 2005

EARNEST PARTNERS LLC(4)

  • SC 13G/AMonolithic Power Systems Inc10 Nov 2014
  • SC 13G/AMonolithic Power Systems Inc10 Oct 2014
  • SC 13G/AMonolithic Power Systems Inc10 Jul 2014
  • SC 13GMonolithic Power Systems Inc14 Feb 2014

ADAGE CAPITAL PARTNERS GP LLC(4)

  • SC 13G/AMonolithic Power Systems Inc16 Feb 2016
  • SC 13G/AMonolithic Power Systems Inc17 Feb 2015
  • SC 13G/AMonolithic Power Systems Inc2 May 2014
  • SC 13GMonolithic Power Systems Inc8 Apr 2013

FRONTIER CAPITAL MANAGEMENT CO LLC(4)

  • SC 13G/AMonolithic Power Systems Inc14 Feb 2014
  • SC 13G/AMonolithic Power Systems Inc14 Feb 2013
  • SC 13G/AMonolithic Power Systems Inc14 Feb 2012
  • SC 13GMonolithic Power Systems Inc14 Feb 2011

LAFFONT PHILIPPE(4)

  • SC 13G/AMonolithic Power Systems Inc14 Feb 2008
  • SC 13G/AMonolithic Power Systems Inc12 Feb 2007
  • SC 13GMonolithic Power Systems Inc14 Feb 2006
  • SC 13GMonolithic Power Systems Inc4 Aug 2005

Hsing Michael(4)

  • SC 13GMonolithic Power Systems Inc14 Feb 2008
  • SC 13GMonolithic Power Systems Inc7 Feb 2007
  • SC 13GMonolithic Power Systems Inc14 Feb 2006
  • SC 13GMonolithic Power Systems Inc14 Feb 2005

BANK OF AMERICA CORP /DE/(3)

  • SC 13G/AMonolithic Power Systems Inc13 Dec 2007
  • SC 13G/AMonolithic Power Systems Inc19 Apr 2006
  • SC 13G/AMonolithic Power Systems Inc8 Feb 2006

CITADEL ADVISORS LLC(3)

  • SC 13G/AMonolithic Power Systems Inc17 Feb 2015
  • SC 13G/AMonolithic Power Systems Inc14 Feb 2014
  • SC 13GMonolithic Power Systems Inc27 Dec 2013

BlackRock, Inc.(3)

  • SC 13G/AMonolithic Power Systems Inc8 Jan
  • SC 13G/AMonolithic Power Systems Inc17 Apr 2025
  • SC 13G/AMonolithic Power Systems Inc17 Apr 2025

ALGER FRED MANAGEMENT INC(2)

  • SC 13G/AMonolithic Power Systems Inc12 Apr 2010
  • SC 13GMonolithic Power Systems Inc16 Feb 2010

FRANKLIN RESOURCES INC(2)

  • SC 13G/AMonolithic Power Systems Inc5 Feb 2020
  • SC 13GMonolithic Power Systems Inc28 Jan 2019

PRICE T ROWE ASSOCIATES INC /MD/(2)

  • SC 13GMonolithic Power Systems Inc14 Feb 2024
  • SC 13GMonolithic Power Systems Inc14 Feb 2023

JANUS CAPITAL MANAGEMENT LLC(2)

  • SC 13G/AMonolithic Power Systems Inc31 Jan 2013
  • SC 13GMonolithic Power Systems Inc14 Feb 2012

AXA FINANCIAL INC(2)

  • SC 13G/AMonolithic Power Systems Inc13 Feb 2009
  • SC 13GMonolithic Power Systems Inc14 Feb 2008

MASSACHUSETTS FINANCIAL SERVICES CO /MA/(2)

  • SC 13G/AMonolithic Power Systems Inc7 Feb 2013
  • SC 13GMonolithic Power Systems Inc31 Jan 2012

Invesco Ltd.(2)

  • SC 13G/AMonolithic Power Systems, Inc.10 Nov
  • SC 13GMonolithic Power Systems Inc15 Jul

RAINIER INVESTMENT MANAGEMENT INC/(2)

  • SC 13GMonolithic Power Systems Inc12 Feb 2010
  • SC 13GMonolithic Power Systems Inc13 Feb 2009

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD(2)

  • SC 13G/AMonolithic Power Systems Inc6 Feb 2009
  • SC 13GMonolithic Power Systems Inc6 Jun 2008

RS INVESTMENT MANAGEMENT CO LLC(2)

  • SC 13G/AMonolithic Power Systems Inc3 Nov 2016
  • SC 13GMonolithic Power Systems Inc12 Feb 2016

BAVP, L.P.(2)

  • SC 13G/AMonolithic Power Systems Inc13 Feb 2007
  • SC 13GMonolithic Power Systems Inc11 Feb 2005

KINGDOM RIDGE CAPITAL MASTER FUND, LTD.(2)

  • SC 13G/AMonolithic Power Systems Inc16 Feb 2010
  • SC 13GMonolithic Power Systems Inc15 Dec 2008

CHWANG RONALD(1)

  • SC 13GMonolithic Power Systems Inc14 Feb 2005

TimesSquare Capital Management, LLC(1)

  • SC 13GMonolithic Power Systems Inc11 Feb 2009

SELIGMAN TECH SPECTRUM (MASTER) FUND(1)

  • SC 13GMonolithic Power Systems Inc18 Jan 2007

Kingdom Ridge Capital, LLC(1)

  • SC 13G/AMonolithic Power Systems Inc13 Feb 2009

VANGUARD CAPITAL MANAGEMENT LLC(1)

  • SC 13GMonolithic Power Systems Inc30 Apr

VANGUARD PORTFOLIO MANAGEMENT LLC(1)

  • SC 13GMonolithic Power Systems Inc29 Apr

Insider Ownership

Hsing Michael(350)

  • Form 4PRIMARY DOCUMENT30 Sep
  • Form 4PRIMARY DOCUMENT20 May
  • Form 4PRIMARY DOCUMENT17 Feb
  • Form 4PRIMARY DOCUMENT13 Feb
  • Form 4PRIMARY DOCUMENT12 Feb
  • Form 4PRIMARY DOCUMENT10 Feb
  • Form 4PRIMARY DOCUMENT5 Feb
  • Form 4PRIMARY DOCUMENT11 Dec 2025
  • Form 4PRIMARY DOCUMENT13 Nov 2025
  • Form 4PRIMARY DOCUMENT13 Nov 2025

Xiao Deming(335)

  • Form 4PRIMARY DOCUMENT8 May
  • Form 4PRIMARY DOCUMENT10 Feb
  • Form 4PRIMARY DOCUMENT5 Feb
  • Form 4PRIMARY DOCUMENT31 Oct 2025
  • Form 4PRIMARY DOCUMENT28 Oct 2025
  • Form 4PRIMARY DOCUMENT12 Aug 2025
  • Form 4PRIMARY DOCUMENT4 Aug 2025
  • Form 4PRIMARY DOCUMENT12 Feb 2025
  • Form 4PRIMARY DOCUMENT13 Nov 2024
  • Form 4PRIMARY DOCUMENT29 Aug 2024

Sciammas Maurice(322)

  • Form 4PRIMARY DOCUMENT5 Nov
  • Form 4PRIMARY DOCUMENT6 Aug
  • Form 4PRIMARY DOCUMENT5 Aug
  • Form 4PRIMARY DOCUMENT17 Jul
  • Form 4PRIMARY DOCUMENT6 Jul
  • Form 4PRIMARY DOCUMENT3 Jun
  • Form 4PRIMARY DOCUMENT2 Jun
  • Form 4PRIMARY DOCUMENT19 May
  • Form 4PRIMARY DOCUMENT15 May
  • Form 4PRIMARY DOCUMENT6 May

Moyer James C(272)

  • Form 4PRIMARY DOCUMENT29 Aug 2024
  • Form 4PRIMARY DOCUMENT12 Aug 2024
  • Form 4PRIMARY DOCUMENT14 Feb 2024
  • Form 4PRIMARY DOCUMENT12 Feb 2024
  • Form 4PRIMARY DOCUMENT8 Feb 2024
  • Form 4PRIMARY DOCUMENT20 Nov 2023
  • Form 4PRIMARY DOCUMENT8 Feb 2023
  • Form 4PRIMARY DOCUMENT12 Dec 2022
  • Form 4PRIMARY DOCUMENT26 Sep 2022
  • Form 4PRIMARY DOCUMENT9 Feb 2022

Tseng Saria(245)

  • Form 4PRIMARY DOCUMENT2 Sep
  • Form 4PRIMARY DOCUMENT29 May
  • Form 4PRIMARY DOCUMENT27 May
  • Form 4PRIMARY DOCUMENT10 Apr
  • Form 4PRIMARY DOCUMENT8 Apr
  • Form 4PRIMARY DOCUMENT3 Apr
  • Form 4PRIMARY DOCUMENT1 Apr
  • Form 4PRIMARY DOCUMENT10 Feb
  • Form 4PRIMARY DOCUMENT5 Feb
  • Form 4PRIMARY DOCUMENT30 Dec 2025

BLEGEN THEODORE(163)

  • Form 4PRIMARY DOCUMENT10 Feb
  • Form 4PRIMARY DOCUMENT5 Feb
  • Form 4PRIMARY DOCUMENT4 Feb
  • Form 4PRIMARY DOCUMENT6 Jan
  • Form 4PRIMARY DOCUMENT2 Dec 2025
  • Form 4PRIMARY DOCUMENT4 Nov 2025
  • Form 4PRIMARY DOCUMENT31 Oct 2025
  • Form 4PRIMARY DOCUMENT28 Oct 2025
  • Form 4PRIMARY DOCUMENT1 Oct 2025
  • Form 4PRIMARY DOCUMENT3 Sep 2025

CHANG KUO WEI HERBERT(122)

  • Form 4PRIMARY DOCUMENT25 Aug
  • Form 4PRIMARY DOCUMENT13 Aug
  • Form 4PRIMARY DOCUMENT5 Feb
  • Form 4PRIMARY DOCUMENT25 Nov 2025
  • Form 4PRIMARY DOCUMENT24 Nov 2025
  • Form 4PRIMARY DOCUMENT13 May 2025
  • Form 4PRIMARY DOCUMENT12 May 2025
  • Form 4PRIMARY DOCUMENT9 May 2025
  • Form 4PRIMARY DOCUMENT6 Feb 2025
  • Form 4PRIMARY DOCUMENT15 Aug 2024

Rao Meera(86)

  • Form 4PRIMARY DOCUMENT9 Feb 2016
  • Form 4PRIMARY DOCUMENT4 Feb 2016
  • Form 4PRIMARY DOCUMENT5 Jan 2016
  • Form 4PRIMARY DOCUMENT21 Dec 2015
  • Form 4PRIMARY DOCUMENT13 Nov 2015
  • Form 4PRIMARY DOCUMENT10 Nov 2015
  • Form 4PRIMARY DOCUMENT5 Nov 2015
  • Form 4PRIMARY DOCUMENT9 Oct 2015
  • Form 4PRIMARY DOCUMENT11 Aug 2015
  • Form 4PRIMARY DOCUMENT6 Aug 2015

Ueunten Paul(57)

  • Form 4PRIMARY DOCUMENT6 Feb 2013
  • Form 4PRIMARY DOCUMENT11 Jan 2013
  • Form 4PRIMARY DOCUMENT14 Nov 2012
  • Form 4PRIMARY DOCUMENT9 Nov 2012
  • Form 4PRIMARY DOCUMENT5 Nov 2012
  • Form 4PRIMARY DOCUMENT29 Aug 2012
  • Form 4PRIMARY DOCUMENT10 Aug 2012
  • Form 4PRIMARY DOCUMENT3 Aug 2012
  • Form 4PRIMARY DOCUMENT26 Jun 2012
  • Form 4PRIMARY DOCUMENT14 May 2012

Zhou Jeff(52)

  • Form 4PRIMARY DOCUMENT27 May
  • Form 4PRIMARY DOCUMENT6 May
  • Form 4PRIMARY DOCUMENT5 Feb
  • Form 4PRIMARY DOCUMENT28 Aug 2025
  • Form 4PRIMARY DOCUMENT15 Aug 2025
  • Form 4PRIMARY DOCUMENT13 Aug 2025
  • Form 4PRIMARY DOCUMENT6 Feb 2025
  • Form 4PRIMARY DOCUMENT22 May 2024
  • Form 4PRIMARY DOCUMENT13 Feb 2024
  • Form 4PRIMARY DOCUMENT8 Feb 2024

Neely Rick(51)

  • Form 4PRIMARY DOCUMENT5 Jan 2011
  • Form 4PRIMARY DOCUMENT8 Dec 2010
  • Form 4PRIMARY DOCUMENT12 Nov 2010
  • Form 4PRIMARY DOCUMENT13 Aug 2010
  • Form 4PRIMARY DOCUMENT13 Aug 2010
  • Form 4PRIMARY DOCUMENT12 Jul 2010
  • Form 4PRIMARY DOCUMENT8 Jul 2010
  • Form 4PRIMARY DOCUMENT16 Jun 2010
  • Form 4PRIMARY DOCUMENT1 Jun 2010
  • Form 4PRIMARY DOCUMENT12 May 2010

Lee Victor K(40)

  • Form 4PRIMARY DOCUMENT11 Feb
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SMITH- PILKINGTON KAREN A(18)

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Chiocchi Adriana(17)

  • Form 4PRIMARY DOCUMENT5 Oct 2009
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Elmiger Eugen J(17)

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PADVAL UMESH(16)

  • Form 4PRIMARY DOCUMENT17 Jun 2011
  • Form 4PRIMARY DOCUMENT10 Feb 2011
  • Form 4PRIMARY DOCUMENT9 Feb 2010
  • Form 4PRIMARY DOCUMENT31 Aug 2009
  • Form 4PRIMARY DOCUMENT27 Aug 2009
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MCBURNIE DOUGLAS M(15)

  • Form 4PRIMARY DOCUMENT23 May 2014
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  • Form 4PRIMARY DOCUMENT4 Mar 2013
  • Form 4PRIMARY DOCUMENT25 Feb 2013
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  • Form 4PRIMARY DOCUMENT11 Feb 2013
  • Form 4PRIMARY DOCUMENT16 Feb 2012
  • Form 4PRIMARY DOCUMENT10 Feb 2011
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EARHART ALAN L(10)

  • Form 4PRIMARY DOCUMENT18 Feb 2009
  • Form 4PRIMARY DOCUMENT8 Aug 2008
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  • Form 4PRIMARY DOCUMENT21 Aug 2007
  • Form 4PRIMARY DOCUMENT24 May 2007
  • Form 4PRIMARY DOCUMENT18 May 2007
  • Form 4PRIMARY DOCUMENT23 Feb 2007
  • Form 4PRIMARY DOCUMENT22 Jun 2006
  • Form 4PRIMARY DOCUMENT30 Dec 2005
  • Form 3Initial statement of beneficial ownership18 Nov 2004

DEAN ROBERT W II(8)

  • Form 4PRIMARY DOCUMENT26 Aug
  • Form 4PRIMARY DOCUMENT19 Aug
  • Form 4PRIMARY DOCUMENT6 Aug
  • Form 4PRIMARY DOCUMENT28 Jul
  • Form 4PRIMARY DOCUMENT28 May
  • Form 4PRIMARY DOCUMENT20 May
  • Form 4PRIMARY DOCUMENT15 May
  • Form 3PRIMARY DOCUMENT9 Mar

Martinez Carintia(8)

  • Form 4PRIMARY DOCUMENT5 Feb
  • Form 4PRIMARY DOCUMENT23 Sep 2025
  • Form 4PRIMARY DOCUMENT6 Feb 2025
  • Form 4PRIMARY DOCUMENT8 Feb 2024
  • Form 4PRIMARY DOCUMENT8 Feb 2023
  • Form 4PRIMARY DOCUMENT9 Feb 2022
  • Form 4PRIMARY DOCUMENT1 Jun 2021
  • Form 3PRIMARY DOCUMENT1 Jun 2021

Jones Jim J III(6)

  • Form 4PRIMARY DOCUMENT23 Jun 2006
  • Form 4PRIMARY DOCUMENT14 Nov 2005
  • Form 4PRIMARY DOCUMENT10 Nov 2005
  • Form 4PRIMARY DOCUMENT23 Sep 2005
  • Form 4PRIMARY DOCUMENT29 Nov 2004
  • Form 3PRIMARY DOCUMENT18 Nov 2004

Wynne Eileen(6)

  • Form 4PRIMARY DOCUMENT8 May
  • Form 4PRIMARY DOCUMENT5 Feb
  • Form 4PRIMARY DOCUMENT6 Feb 2025
  • Form 4PRIMARY DOCUMENT8 Feb 2024
  • Form 4PRIMARY DOCUMENT9 Feb 2023
  • Form 3PRIMARY DOCUMENT9 Feb 2023

CHRISTOFFERSEN TIM(4)

  • Form 4PRIMARY DOCUMENT8 Sep 2005
  • Form 4Statement of changes in beneficial ownership10 May 2005
  • Form 4PRIMARY DOCUMENT17 Aug 2005
  • Form 3Initial statement of beneficial ownership18 Nov 2004

TAI KENNETH(2)

  • Form 4Statement of changes in beneficial ownership24 Nov 2004
  • Form 3Initial statement of beneficial ownership18 Nov 2004

INVESTAR CAPITAL INC(2)

  • Form 4Statement of changes in beneficial ownership24 Nov 2004
  • Form 3Initial statement of beneficial ownership18 Nov 2004

INVESTAR BURGEON VENTURE CAPITAL INC(2)

  • Form 4Statement of changes in beneficial ownership24 Nov 2004
  • Form 3Initial statement of beneficial ownership18 Nov 2004

INVESTAR DAYSPRING VENTURE CAPITAL INC(2)

  • Form 4Statement of changes in beneficial ownership24 Nov 2004
  • Form 3Initial statement of beneficial ownership18 Nov 2004

INVESTAR EXCELSUS VENTURE CAPITAL INTL INC LDC(2)

  • Form 4Statement of changes in beneficial ownership24 Nov 2004
  • Form 3Initial statement of beneficial ownership18 Nov 2004

FOREFRONT VENTURE PARTNERS LP(2)

  • Form 4Statement of changes in beneficial ownership24 Nov 2004
  • Form 3Initial statement of beneficial ownership18 Nov 2004

BAVP, L.P.(2)

  • Form 4PRIMARY DOCUMENT29 Nov 2004
  • Form 3PRIMARY DOCUMENT18 Nov 2004

Forefront Associates LLC(2)

  • Form 4Statement of changes in beneficial ownership24 Nov 2004
  • Form 3Initial statement of beneficial ownership18 Nov 2004

InveStar Semiconductor Development Fund Inc(2)

  • Form 4Statement of changes in beneficial ownership24 Nov 2004
  • Form 3Initial statement of beneficial ownership18 Nov 2004

InveStar Semiconductor Development Fund Inc (II) LDC(2)

  • Form 4Statement of changes in beneficial ownership24 Nov 2004
  • Form 3Initial statement of beneficial ownership18 Nov 2004

Balow Frank Anthony III(2)

  • Form 4PRIMARY DOCUMENT05:09PM
  • Form 3PRIMARY DOCUMENT29 Oct

Hsing Sharon(1)

  • Form 3Initial statement of beneficial ownership18 Nov 2004

Moyer Frances K(1)

  • Form 3Initial statement of beneficial ownership18 Nov 2004

≥5% Ownership

FMR LLC(19)

  • SC 13G/AMonolithic Power Systems, Inc.5 Nov
  • SC 13G/AMonolithic Power Systems Inc8 Jul
  • SC 13G/AMonolithic Power Systems Inc5 Feb
  • SC 13G/AMonolithic Power Systems Inc12 Nov 2024
  • SC 13GMonolithic Power Systems Inc9 Feb 2024
  • SC 13G/AMonolithic Power Systems Inc13 Feb 2019
  • SC 13G/AMonolithic Power Systems Inc13 Feb 2018
  • SC 13G/AMonolithic Power Systems Inc14 Feb 2017
  • SC 13G/AMonolithic Power Systems Inc12 Feb 2016
  • SC 13G/AMonolithic Power Systems Inc13 Feb 2015

BlackRock Inc.(18)

  • SC 13G/AMonolithic Power Systems Inc24 Jan 2024
  • SC 13G/AMonolithic Power Systems Inc26 Jan 2023
  • SC 13GMonolithic Power Systems Inc20 Jan 2023
  • SC 13G/AMonolithic Power Systems Inc28 Jan 2022
  • SC 13G/AMonolithic Power Systems Inc26 Jan 2021
  • SC 13G/AMonolithic Power Systems Inc4 Feb 2020
  • SC 13G/AMonolithic Power Systems Inc7 Jun 2019
  • SC 13G/AMonolithic Power Systems Inc6 Feb 2019
  • SC 13G/AMonolithic Power Systems Inc19 Jan 2018
  • SC 13G/AMonolithic Power Systems Inc8 Feb 2017

VANGUARD GROUP INC(16)

  • SC 13G/AMonolithic Power Systems Inc27 Mar
  • SC 13G/AMonolithic Power Systems Inc29 Jul 2025
  • SC 13G/AMonolithic Power Systems Inc13 Feb 2024
  • SC 13G/AMonolithic Power Systems Inc9 Feb 2023
  • SC 13G/AMonolithic Power Systems Inc10 Feb 2022
  • SC 13G/AMonolithic Power Systems Inc10 Mar 2021
  • SC 13G/AMonolithic Power Systems Inc10 Feb 2021
  • SC 13G/AMonolithic Power Systems Inc12 Feb 2020
  • SC 13G/AMonolithic Power Systems Inc11 Feb 2019
  • SC 13G/AMonolithic Power Systems Inc9 Feb 2018

SELIGMAN J & W & CO INC /NY/(9)

  • SC 13G/AMonolithic Power Systems Inc9 Apr 2008
  • SC 13GMonolithic Power Systems Inc28 Jan 2008
  • SC 13G/AMonolithic Power Systems Inc13 Feb 2007
  • SC 13G/AMonolithic Power Systems Inc1 Sep 2006
  • SC 13G/AMonolithic Power Systems Inc10 May 2006
  • SC 13G/AMonolithic Power Systems Inc6 Mar 2006
  • SC 13G/AMonolithic Power Systems Inc13 Feb 2006
  • SC 13G/AMonolithic Power Systems Inc13 Dec 2005
  • SC 13GMonolithic Power Systems Inc12 Aug 2005

WELLS FARGO & CO/MN(7)

  • SC 13G/AMonolithic Power Systems Inc10 May 2011
  • SC 13G/AMonolithic Power Systems Inc20 Jan 2011
  • SC 13G/AMonolithic Power Systems Inc11 Jun 2010
  • SC 13GMonolithic Power Systems Inc21 Jan 2010
  • SC 13G/AMonolithic Power Systems Inc9 Mar 2009
  • SC 13G/AMonolithic Power Systems Inc2 Feb 2009
  • SC 13GMonolithic Power Systems Inc12 Nov 2008

BLAIR WILLIAM & CO/IL(5)

  • SC 13G/AMonolithic Power Systems Inc4 Feb 2013
  • SC 13G/AMonolithic Power Systems Inc7 Aug 2012
  • SC 13G/AMonolithic Power Systems Inc30 Jan 2012
  • SC 13G/AMonolithic Power Systems Inc10 May 2011
  • SC 13GMonolithic Power Systems Inc8 Feb 2011

COLUMBIA WANGER ASSET MANAGEMENT LLC(5)

  • SC 13G/AMonolithic Power Systems Inc3 Feb 2014
  • SC 13G/AMonolithic Power Systems Inc14 Feb 2013
  • SC 13GMonolithic Power Systems Inc10 Feb 2012
  • SC 13G/AMonolithic Power Systems Inc10 Feb 2011
  • SC 13GMonolithic Power Systems Inc1 Feb 2010

CHANG KUO WEI HERBERT(5)

  • SC 13GMonolithic Power Systems Inc26 Jan 2009
  • SC 13GMonolithic Power Systems Inc14 Feb 2008
  • SC 13GMonolithic Power Systems Inc14 Feb 2007
  • SC 13GMonolithic Power Systems Inc14 Feb 2006
  • SC 13GMonolithic Power Systems Inc14 Feb 2005

ARTIS CAPITAL MANAGEMENT, L.P.(5)

  • SC 13G/AMonolithic Power Systems Inc17 Feb 2009
  • SC 13GMonolithic Power Systems Inc14 Feb 2008
  • SC 13G/AMonolithic Power Systems Inc10 Oct 2007
  • SC 13G/AMonolithic Power Systems Inc14 Feb 2007
  • SC 13GMonolithic Power Systems Inc9 Nov 2006

Moyer James C(5)

  • SC 13GMonolithic Power Systems Inc26 Jan 2009
  • SC 13GMonolithic Power Systems Inc14 Feb 2008
  • SC 13GMonolithic Power Systems Inc7 Feb 2007
  • SC 13GMonolithic Power Systems Inc14 Feb 2006
  • SC 13GMonolithic Power Systems Inc14 Feb 2005

EARNEST PARTNERS LLC(4)

  • SC 13G/AMonolithic Power Systems Inc10 Nov 2014
  • SC 13G/AMonolithic Power Systems Inc10 Oct 2014
  • SC 13G/AMonolithic Power Systems Inc10 Jul 2014
  • SC 13GMonolithic Power Systems Inc14 Feb 2014

ADAGE CAPITAL PARTNERS GP LLC(4)

  • SC 13G/AMonolithic Power Systems Inc16 Feb 2016
  • SC 13G/AMonolithic Power Systems Inc17 Feb 2015
  • SC 13G/AMonolithic Power Systems Inc2 May 2014
  • SC 13GMonolithic Power Systems Inc8 Apr 2013

FRONTIER CAPITAL MANAGEMENT CO LLC(4)

  • SC 13G/AMonolithic Power Systems Inc14 Feb 2014
  • SC 13G/AMonolithic Power Systems Inc14 Feb 2013
  • SC 13G/AMonolithic Power Systems Inc14 Feb 2012
  • SC 13GMonolithic Power Systems Inc14 Feb 2011

LAFFONT PHILIPPE(4)

  • SC 13G/AMonolithic Power Systems Inc14 Feb 2008
  • SC 13G/AMonolithic Power Systems Inc12 Feb 2007
  • SC 13GMonolithic Power Systems Inc14 Feb 2006
  • SC 13GMonolithic Power Systems Inc4 Aug 2005

Hsing Michael(4)

  • SC 13GMonolithic Power Systems Inc14 Feb 2008
  • SC 13GMonolithic Power Systems Inc7 Feb 2007
  • SC 13GMonolithic Power Systems Inc14 Feb 2006
  • SC 13GMonolithic Power Systems Inc14 Feb 2005

BANK OF AMERICA CORP /DE/(3)

  • SC 13G/AMonolithic Power Systems Inc13 Dec 2007
  • SC 13G/AMonolithic Power Systems Inc19 Apr 2006
  • SC 13G/AMonolithic Power Systems Inc8 Feb 2006

CITADEL ADVISORS LLC(3)

  • SC 13G/AMonolithic Power Systems Inc17 Feb 2015
  • SC 13G/AMonolithic Power Systems Inc14 Feb 2014
  • SC 13GMonolithic Power Systems Inc27 Dec 2013

BlackRock, Inc.(3)

  • SC 13G/AMonolithic Power Systems Inc8 Jan
  • SC 13G/AMonolithic Power Systems Inc17 Apr 2025
  • SC 13G/AMonolithic Power Systems Inc17 Apr 2025

ALGER FRED MANAGEMENT INC(2)

  • SC 13G/AMonolithic Power Systems Inc12 Apr 2010
  • SC 13GMonolithic Power Systems Inc16 Feb 2010

FRANKLIN RESOURCES INC(2)

  • SC 13G/AMonolithic Power Systems Inc5 Feb 2020
  • SC 13GMonolithic Power Systems Inc28 Jan 2019

PRICE T ROWE ASSOCIATES INC /MD/(2)

  • SC 13GMonolithic Power Systems Inc14 Feb 2024
  • SC 13GMonolithic Power Systems Inc14 Feb 2023

JANUS CAPITAL MANAGEMENT LLC(2)

  • SC 13G/AMonolithic Power Systems Inc31 Jan 2013
  • SC 13GMonolithic Power Systems Inc14 Feb 2012

AXA FINANCIAL INC(2)

  • SC 13G/AMonolithic Power Systems Inc13 Feb 2009
  • SC 13GMonolithic Power Systems Inc14 Feb 2008

MASSACHUSETTS FINANCIAL SERVICES CO /MA/(2)

  • SC 13G/AMonolithic Power Systems Inc7 Feb 2013
  • SC 13GMonolithic Power Systems Inc31 Jan 2012

Invesco Ltd.(2)

  • SC 13G/AMonolithic Power Systems, Inc.10 Nov
  • SC 13GMonolithic Power Systems Inc15 Jul

RAINIER INVESTMENT MANAGEMENT INC/(2)

  • SC 13GMonolithic Power Systems Inc12 Feb 2010
  • SC 13GMonolithic Power Systems Inc13 Feb 2009

TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD(2)

  • SC 13G/AMonolithic Power Systems Inc6 Feb 2009
  • SC 13GMonolithic Power Systems Inc6 Jun 2008

RS INVESTMENT MANAGEMENT CO LLC(2)

  • SC 13G/AMonolithic Power Systems Inc3 Nov 2016
  • SC 13GMonolithic Power Systems Inc12 Feb 2016

BAVP, L.P.(2)

  • SC 13G/AMonolithic Power Systems Inc13 Feb 2007
  • SC 13GMonolithic Power Systems Inc11 Feb 2005

KINGDOM RIDGE CAPITAL MASTER FUND, LTD.(2)

  • SC 13G/AMonolithic Power Systems Inc16 Feb 2010
  • SC 13GMonolithic Power Systems Inc15 Dec 2008

CHWANG RONALD(1)

  • SC 13GMonolithic Power Systems Inc14 Feb 2005

TimesSquare Capital Management, LLC(1)

  • SC 13GMonolithic Power Systems Inc11 Feb 2009

SELIGMAN TECH SPECTRUM (MASTER) FUND(1)

  • SC 13GMonolithic Power Systems Inc18 Jan 2007

Kingdom Ridge Capital, LLC(1)

  • SC 13G/AMonolithic Power Systems Inc13 Feb 2009

VANGUARD CAPITAL MANAGEMENT LLC(1)

  • SC 13GMonolithic Power Systems Inc30 Apr

VANGUARD PORTFOLIO MANAGEMENT LLC(1)

  • SC 13GMonolithic Power Systems Inc29 Apr