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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)

Doc Search Profile Entity StructureFinancials Charting Short Interest Employees

Overview

Profile Entity Structure

Documents

Categorized Chronological By Owner

Financials & Metrics

Financials Charting Short Interest Employees

Home
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Get the full experience
We save the real magic for signed-in users.

Home Stock Screener Document Search Charting Watchlists Recent 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)

Doc Search Profile Entity StructureFinancials Charting Short Interest Employees

Overview

Profile Entity Structure

Documents

Categorized Chronological By Owner

Financials & Metrics

Financials Charting Short Interest Employees

MPWR US

MPWR US

SEC Filings

SEC Filings

Financials(95)

10-QQ3ended 30 Sept 20263 Nov
10-QQ2ended 30 Jun 20265 Aug
10-QQ1ended 31 Mar 20264 May
10-KFY 2025ended 31 Dec 202527 Feb
10-QQ3ended 30 Sept 20255 Nov 2025
10-QQ2ended 30 Jun 20254 Aug 2025
10-QQ1ended 31 Mar 20255 May 2025
10-KFY 2024ended 31 Dec 20243 Mar 2025
10-QQ3ended 30 Sept 20246 Nov 2024
10-QQ2ended 30 Jun 20242 Aug 2024
10-QQ1ended 31 Mar 20243 May 2024
10-KFY 2023ended 31 Dec 202329 Feb 2024
10-QQ3ended 30 Sept 20238 Nov 2023
10-QQ2ended 30 Jun 20234 Aug 2023
10-QQ1ended 31 Mar 20235 May 2023

Events(204)

8-KResults of Operations and Financial Condition29 Oct
8-KOther Events10 Sep
8-KResults of Operations and Financial Condition30 Jul
8-KSubmission of Matters to a Vote of Security Holders12 Jun
8-KResults of Operations and Financial Condition30 Apr
8-KNon-Reliance on Previously Issued Financial Statements or a Related Audit Report or Completed Interim Review27 Feb
8-KResults of Operations and Financial Condition5 Feb
8-KOther Events12 Dec 2025
8-KAmendments to Articles of Incorporation or Bylaws; Change in Fiscal Year21 Nov 2025
8-KResults of Operations and Financial Condition30 Oct 2025
8-KOther Events11 Sep 2025
8-KResults of Operations and Financial Condition31 Jul 2025
8-KCharter/Bylaw Amendment; Fiscal Year Change16 Jun 2025
8-KResults of Operations and Financial Condition1 May 2025
8-KCharter/Bylaw Amendment; Fiscal Year Change26 Mar 2025

Insider Ownership(2.2K)

Form 4Balow Frank Anthony III05:09PM
Form 4Sciammas Maurice5 Nov
Form 3Balow Frank Anthony III29 Oct
Form 4Hsing Michael30 Sep
Form 4Tseng Saria2 Sep
Form 4DEAN ROBERT W II26 Aug
Form 4CHANG KUO WEI HERBERT25 Aug
Form 4DEAN ROBERT W II19 Aug
Form 4CHANG KUO WEI HERBERT13 Aug
Form 4Sciammas Maurice6 Aug
Form 4DEAN ROBERT W II6 Aug
Form 4Sciammas Maurice5 Aug
Form 4DEAN ROBERT W II28 Jul
Form 4Sciammas Maurice17 Jul
Form 4Sciammas Maurice6 Jul

Beneficial Ownership(153)

SC 13G/AMONOLITHIC POWER SYSTEMS, INC.10 Nov
SC 13G/AMONOLITHIC POWER SYSTEMS, INC.5 Nov
SC 13GMONOLITHIC POWER SYSTEMS INC15 Jul
SC 13G/AMONOLITHIC POWER SYSTEMS INC8 Jul
SC 13GMONOLITHIC POWER SYSTEMS INC30 Apr
SC 13GMONOLITHIC POWER SYSTEMS INC29 Apr
SC 13G/AMONOLITHIC POWER SYSTEMS INC27 Mar
SC 13G/AMONOLITHIC POWER SYSTEMS INC5 Feb
SC 13G/AMONOLITHIC POWER SYSTEMS INC8 Jan
SC 13G/AMONOLITHIC POWER SYSTEMS INC29 Jul 2025
SC 13G/AMONOLITHIC POWER SYSTEMS INC17 Apr 2025
SC 13G/AMONOLITHIC POWER SYSTEMS INC17 Apr 2025
SC 13G/AMONOLITHIC POWER SYSTEMS INC12 Nov 2024
SC 13GMONOLITHIC POWER SYSTEMS INC14 Feb 2024
SC 13G/AMONOLITHIC POWER SYSTEMS INC13 Feb 2024

Other Ownership(223)

Form 144Elmiger Eugen J06:39PM
Form 144Hsing Michael28 Sep
Form 144DEAN ROBERT W II24 Aug
Form 144DEAN ROBERT W II17 Aug
Form 144CHANG KUO WEI HERBERT11 Aug
Form 144DEAN ROBERT W II5 Aug
Form 144Sciammas Maurice15 Jul
Form 144BLEGEN THEODORE1 Jun
Form 144Tseng Saria28 May
Form 144DEAN ROBERT W II26 May
Form 144Zhou Jeff26 May
Form 144Tseng Saria22 May
Form 144DEAN ROBERT W II18 May
Form 144Hsing Michael18 May
Form 144Sciammas Maurice15 May

Proxies(58)

ARSAnnual report to security holders30 Apr
DEFA14ADefinitive additional materials30 Apr
DEF 14ADefinitive proxy statement30 Apr
DEFR14ADefinitive revised proxy statement2 May 2025
ARSAnnual report to security holders30 Apr 2025
DEFA14ADefinitive additional materials30 Apr 2025
DEF 14ADefinitive proxy statement30 Apr 2025
PRE 14APreliminary proxy statement18 Apr 2025
DEFA14ADefinitive additional materials6 Jun 2024
ARSAnnual report to security holders29 Apr 2024
DEFA14ADefinitive additional materials29 Apr 2024
DEF 14ADefinitive proxy statement29 Apr 2024
DEFA14ADefinitive additional materials7 Jun 2023
DEFA14ADefinitive additional materials5 Jun 2023
DEFA14ADefinitive additional materials22 May 2023

Registrations(22)

S-8Registration statement (employee benefit plan)3 Aug 2020
S-8Registration statement (employee benefit plan)3 Nov 2014
S-8Registration statement (employee benefit plan)19 Sep 2014
S-8Registration statement (employee benefit plan)8 Mar 2013
S-8Registration statement (employee benefit plan)12 Mar 2012
S-8Registration statement (employee benefit plan)2 Feb 2011
S-8Registration statement (employee benefit plan)3 Feb 2010
S-8Registration statement (employee benefit plan)4 Feb 2009
S-8Registration statement (employee benefit plan)4 Feb 2008
S-8Registration statement (employee benefit plan)9 Feb 2007
S-8 POSPOST EFFECTIVE AMENDMENT NO. 1 TO FORM S-88 Feb 2007
S-8Registration statement (employee benefit plan)14 Mar 2006
424B3FILED PURSUANT TO RULE 424(B)(3)6 Dec 2004
S-8Registration statement (employee benefit plan)1 Dec 2004
424B4FILED PURSUANT TO RULE 424(B)(4)19 Nov 2004

Filing Review Correspondence(1)

CORRESPFiling review correspondence24 May 2017

Other(13)

SDSD29 May
SDSD28 May 2025
SDSD30 May 2024
SDSD12 May 2023
SDSD31 May 2022
SDSD28 May 2021
SDSD1 Jun 2020
SDSD31 May 2019
SDSD31 May 2018
SDSD31 May 2017
SDSD31 May 2016
SDSD1 Jun 2015
SDSD2 Jun 2014

Financials(95)

10-QQ3ended 30 Sept 20263 Nov
10-QQ2ended 30 Jun 20265 Aug
10-QQ1ended 31 Mar 20264 May
10-KFY 2025ended 31 Dec 202527 Feb
10-QQ3ended 30 Sept 20255 Nov 2025
10-QQ2ended 30 Jun 20254 Aug 2025
10-QQ1ended 31 Mar 20255 May 2025
10-KFY 2024ended 31 Dec 20243 Mar 2025
10-QQ3ended 30 Sept 20246 Nov 2024
10-QQ2ended 30 Jun 20242 Aug 2024
10-QQ1ended 31 Mar 20243 May 2024
10-KFY 2023ended 31 Dec 202329 Feb 2024
10-QQ3ended 30 Sept 20238 Nov 2023
10-QQ2ended 30 Jun 20234 Aug 2023
10-QQ1ended 31 Mar 20235 May 2023

Events(204)

8-KResults of Operations and Financial Condition29 Oct
8-KOther Events10 Sep
8-KResults of Operations and Financial Condition30 Jul
8-KSubmission of Matters to a Vote of Security Holders12 Jun
8-KResults of Operations and Financial Condition30 Apr
8-KNon-Reliance on Previously Issued Financial Statements or a Related Audit Report or Completed Interim Review27 Feb
8-KResults of Operations and Financial Condition5 Feb
8-KOther Events12 Dec 2025
8-KAmendments to Articles of Incorporation or Bylaws; Change in Fiscal Year21 Nov 2025
8-KResults of Operations and Financial Condition30 Oct 2025
8-KOther Events11 Sep 2025
8-KResults of Operations and Financial Condition31 Jul 2025
8-KCharter/Bylaw Amendment; Fiscal Year Change16 Jun 2025
8-KResults of Operations and Financial Condition1 May 2025
8-KCharter/Bylaw Amendment; Fiscal Year Change26 Mar 2025

Insider Ownership(2.2K)

Form 4Balow Frank Anthony III05:09PM
Form 4Sciammas Maurice5 Nov
Form 3Balow Frank Anthony III29 Oct
Form 4Hsing Michael30 Sep
Form 4Tseng Saria2 Sep
Form 4DEAN ROBERT W II26 Aug
Form 4CHANG KUO WEI HERBERT25 Aug
Form 4DEAN ROBERT W II19 Aug
Form 4CHANG KUO WEI HERBERT13 Aug
Form 4Sciammas Maurice6 Aug
Form 4DEAN ROBERT W II6 Aug
Form 4Sciammas Maurice5 Aug
Form 4DEAN ROBERT W II28 Jul
Form 4Sciammas Maurice17 Jul
Form 4Sciammas Maurice6 Jul

Beneficial Ownership(153)

SC 13G/AMONOLITHIC POWER SYSTEMS, INC.10 Nov
SC 13G/AMONOLITHIC POWER SYSTEMS, INC.5 Nov
SC 13GMONOLITHIC POWER SYSTEMS INC15 Jul
SC 13G/AMONOLITHIC POWER SYSTEMS INC8 Jul
SC 13GMONOLITHIC POWER SYSTEMS INC30 Apr
SC 13GMONOLITHIC POWER SYSTEMS INC29 Apr
SC 13G/AMONOLITHIC POWER SYSTEMS INC27 Mar
SC 13G/AMONOLITHIC POWER SYSTEMS INC5 Feb
SC 13G/AMONOLITHIC POWER SYSTEMS INC8 Jan
SC 13G/AMONOLITHIC POWER SYSTEMS INC29 Jul 2025
SC 13G/AMONOLITHIC POWER SYSTEMS INC17 Apr 2025
SC 13G/AMONOLITHIC POWER SYSTEMS INC17 Apr 2025
SC 13G/AMONOLITHIC POWER SYSTEMS INC12 Nov 2024
SC 13GMONOLITHIC POWER SYSTEMS INC14 Feb 2024
SC 13G/AMONOLITHIC POWER SYSTEMS INC13 Feb 2024

Other Ownership(223)

Form 144Elmiger Eugen J06:39PM
Form 144Hsing Michael28 Sep
Form 144DEAN ROBERT W II24 Aug
Form 144DEAN ROBERT W II17 Aug
Form 144CHANG KUO WEI HERBERT11 Aug
Form 144DEAN ROBERT W II5 Aug
Form 144Sciammas Maurice15 Jul
Form 144BLEGEN THEODORE1 Jun
Form 144Tseng Saria28 May
Form 144DEAN ROBERT W II26 May
Form 144Zhou Jeff26 May
Form 144Tseng Saria22 May
Form 144DEAN ROBERT W II18 May
Form 144Hsing Michael18 May
Form 144Sciammas Maurice15 May

Proxies(58)

ARSAnnual report to security holders30 Apr
DEFA14ADefinitive additional materials30 Apr
DEF 14ADefinitive proxy statement30 Apr
DEFR14ADefinitive revised proxy statement2 May 2025
ARSAnnual report to security holders30 Apr 2025
DEFA14ADefinitive additional materials30 Apr 2025
DEF 14ADefinitive proxy statement30 Apr 2025
PRE 14APreliminary proxy statement18 Apr 2025
DEFA14ADefinitive additional materials6 Jun 2024
ARSAnnual report to security holders29 Apr 2024
DEFA14ADefinitive additional materials29 Apr 2024
DEF 14ADefinitive proxy statement29 Apr 2024
DEFA14ADefinitive additional materials7 Jun 2023
DEFA14ADefinitive additional materials5 Jun 2023
DEFA14ADefinitive additional materials22 May 2023

Registrations(22)

S-8Registration statement (employee benefit plan)3 Aug 2020
S-8Registration statement (employee benefit plan)3 Nov 2014
S-8Registration statement (employee benefit plan)19 Sep 2014
S-8Registration statement (employee benefit plan)8 Mar 2013
S-8Registration statement (employee benefit plan)12 Mar 2012
S-8Registration statement (employee benefit plan)2 Feb 2011
S-8Registration statement (employee benefit plan)3 Feb 2010
S-8Registration statement (employee benefit plan)4 Feb 2009
S-8Registration statement (employee benefit plan)4 Feb 2008
S-8Registration statement (employee benefit plan)9 Feb 2007
S-8 POSPOST EFFECTIVE AMENDMENT NO. 1 TO FORM S-88 Feb 2007
S-8Registration statement (employee benefit plan)14 Mar 2006
424B3FILED PURSUANT TO RULE 424(B)(3)6 Dec 2004
S-8Registration statement (employee benefit plan)1 Dec 2004
424B4FILED PURSUANT TO RULE 424(B)(4)19 Nov 2004

Filing Review Correspondence(1)

CORRESPFiling review correspondence24 May 2017

Other(13)

SDSD29 May
SDSD28 May 2025
SDSD30 May 2024
SDSD12 May 2023
SDSD31 May 2022
SDSD28 May 2021
SDSD1 Jun 2020
SDSD31 May 2019
SDSD31 May 2018
SDSD31 May 2017
SDSD31 May 2016
SDSD1 Jun 2015
SDSD2 Jun 2014