Companies: 10,795·Total market cap: $144.5T
Monolithic Power Systems, Inc.

Monolithic Power Systems, Inc.

MPWRNASDAQTechnology● Active
$1,535.34
+$54.29(+3.67%)
Market Cap$75.4B
P/E Ratio
52W High$1714.09
52W Low$670
SEC Filings

Monolithic Power Systems, Inc. (MPWR) SEC Filings & 10-K Annual Reports

SEC EDGAR regulatory submissions (10-K, 10-Q, 8-K), latest forms, and full filing history — quick links to financials and earnings below.

SEC EDGAR · data.sec.gov · CIK 0001280452 · MPWR · NASDAQ · as of Jun 8, 2026

Filing snapshot

1,002+
Total Filings
4
Latest Form
2026-06-03
Most Recent
2004
Filing Since

Source: SEC EDGAR (data.sec.gov) · CIK 0001280452 · Updated hourly · Not investment advice

Latest Annual Report

10-K · Annual ReportFY
Filed Date
2026-02-27
Fiscal Year End
Feb 27, 2026
Accession No.
0001437749-26-006113
Primary Document
mpwr20251231_10k.htm
Source: data.sec.gov · CIK 0001280452 · Accession 0001437749-26-006113

Latest Key Filings

10-QQuarterly Report
FORM 10-Q
2026-05-04
8-KCurrent Report
FORM 8-K
2026-04-30Material Event
Form 4Insider Activity
Ownership Change Disclosures

Executive & director trade disclosures. Full buy/sell sentiment analysis on the dedicated tab.

SEC Filing History

Hide Form 4 / 144
SDSD
FORM SD
2026-05-29
View
10-QQuarterly Report
FORM 10-Q
2026-05-04
View
8-KCurrent Report
FORM 8-K
2026-04-30
View
ARSARS
FORM ARS
2026-04-30
View
DEFA14AProxy Statement (Additional)
FORM DEFA14A
2026-04-30
View
DEF 14AProxy Statement
FORM DEF 14A
2026-04-30
View
SCHEDULE 13GSCHEDULE 13G
SCHEDULE 13G
2026-04-30
View
SCHEDULE 13GSCHEDULE 13G
SCHEDULE 13G
2026-04-29
View
SCHEDULE 13G/ASCHEDULE 13G/A
SCHEDULE 13G/A
2026-03-27
View
3Initial Statement of Beneficial Ownership
PRIMARY DOCUMENT
2026-03-09
View
10-KAnnual Report
FORM 10-K
2026-02-27
View
8-KCurrent Report
FORM 8-K
2026-02-27
View
8-KCurrent Report
FORM 8-K
2026-02-05
View
SCHEDULE 13G/ASCHEDULE 13G/A
SCHEDULE 13G/A
2026-02-05
View
SCHEDULE 13G/ASCHEDULE 13G/A
SCHEDULE 13G/A
2026-01-08
View
Showing 1–15 of 143 filingsForm 4 / 144 hidden· 1002 total in EDGAR

About SEC Filings & 10-K Annual Reports

Data source: SEC EDGAR (data.sec.gov)  |  Updated: Hourly  |  CIK: 0001280452  |  Exchange: NASDAQ · Technology

Monolithic Power Systems, Inc. (NASDAQ: MPWR) has submitted 1,002+ documents to the U.S. Securities and Exchange Commission (SEC) since its IPO in 2004. As a Technology sector company with CIK 0001280452, all filings are publicly accessible via the EDGAR database at no cost.

The annual 10-K report is Monolithic Power Systems, Inc.'s most comprehensive regulatory disclosure. The most recent Monolithic Power Systems, Inc. 10-K was filed on 2026-02-27 for fiscal year ending 2026. Historical MPWR 10-K annual reports are available from 2019 through 2026.

Investors researching Monolithic Power Systems, Inc. SEC filings can access 10-K annual reports, quarterly 10-Q reports, material event 8-K filings, and proxy statements directly from the links above. All documents are sourced from the official SEC EDGAR system.

Source: SEC EDGAR · data.sec.gov · SEC Form 10-K · SEC Form 10-Q · SEC Form 8-K2026-06-08

Frequently Asked Questions

MPWR SEC Filings · 8 questions

Monolithic Power Systems, Inc. (MPWR) SEC filings are publicly available on this page and on the official SEC EDGAR database at sec.gov. You can browse all 1,002+ filings and access original documents at no cost. Monolithic Power Systems, Inc.'s CIK is 0001280452.

MPWR SEC filingsMonolithic Power Systems, Inc. SEC documentsfind MPWR 10-K