MPWR Monolithic Power Systems
company
SEC Filings & Insider Trading Activity 2026

CIK: 1280452
Information Technology
Semiconductors & Related Devices 32 filings
Nasdaq 100
S&P 500

Latest Monolithic Power Systems (MPWR) SEC EDGAR filings in 2026 — including the most recent 10-K annual report filed on February 27, 2026, a 10-Q quarterly report filed on November 5, 2025, an 8-K current report filed on April 30, 2026. SignalX aggregates every new 10-K annual report, 10-Q quarterly report, 8-K current report, and Form 4 insider transaction for Monolithic Power Systems (MPWR) (SEC CIK 1280452), with AI-powered section-by-section summaries updated daily.

10-Q: 21
10-K: 7
8-K: 4

Latest 2026 SEC Filing Dates

10-K Annual Report
Feb 27, 2026
10-Q Quarterly Report
Nov 5, 2025
8-K Current Report
Apr 30, 2026

AI 10-K Annual Report Analysis
Latest 10-K (2025-12-31)

Risk Factors

  • 92% of revenue from Asia customers; export control rules targeting AI-enabling products risk cutting off key market access
  • Top 3 distributors (all distributors) = 54% of FY2025 revenue; single distributor loss could materially disrupt financials
+3 more insights

Business Overview

  • Fabless analog/mixed-signal IC maker serving storage, enterprise data, automotive, communications, consumer, and industrial end markets via proprietary process/packaging tech
  • Enterprise data revenue share fell sharply to 25.2% from 32.5%; storage & computing rose to 26.3% from 22.7%, reclaiming top-market position — reflects AI server demand normalization
+3 more insights

Management Discussion & Analysis

  • Revenue $2.79B, up $583.4M (+26.4% YoY) driven by volume growth; Storage & Computing best segment at $732.5M (+46.0%), Enterprise Data worst at -$14.4M (-2.0%)
  • Operating margin 26.1% vs 24.4%; gross margin 55.2% vs 55.3%; net margin 22.3% vs 72.1% (2024 inflated by $1.0B one-time tax benefit)
+3 more insights

AI 10-Q Quarterly Report Analysis
Latest 10-Q (2025-09-30)

Risk Factors

  • No newly added risk factors this quarter; risk profile unchanged since 10-K
  • Most materially updated risk: none; all risks carried forward unchanged since 10-K

Management Discussion & Analysis

  • Revenue $737.2M Q3 FY25, up 18.9% YoY from $620.1M Q3 FY24; nine months $2,039.3M, up 28.6% YoY from $1,585.4M
  • Operating margin stable at 26.5% Q3 FY25 vs 26.5% Q3 FY24; nine months margin increased to 25.9% FY25 from 23.7% FY24
Read full Q3 2025 10-Q analysis →

AI 8-K Current Report Analysis
Recent 8-K Filings

Filed Feb 27, 2026
8-K
Full analysis →

Item 4.02: Non-Reliance on Previously Issued Financial Statements

  • MPWR restating 2024 10-K and all 2025 quarterly filings due to deferred income tax error on foreign jurisdiction tax incentive
  • 2024 GAAP net income reduced by $195M to $1.592B; diluted EPS drops from $36.59 to $32.60

Annual Reports Archive
10-K

AI-powered analysis of Monolithic Power Systems (MPWR) 10-K annual reports filed with SEC EDGAR.

Quarterly Reports Archive
10-Q

AI-powered analysis of Monolithic Power Systems (MPWR) 10-Q quarterly reports filed with SEC EDGAR.

Recent 8-K Filings
Current Reports

AI-powered analysis of Monolithic Power Systems (MPWR) 8-K current reports disclosing material events.

Financial Summary
XBRL

FY2022FY2023FY2024FY2025
Profitability
Revenue$1.8B$2.2B$2.8B
Gross Profit$1.0B$1.0B$1.2B$1.5B
Operating Income$481.7M$539.4M$728.6M
Net Income$427.4M$1.8B$621.5M
Gross Margin56.1%55.3%55.2%
Op. Margin26.5%24.4%26.1%
Net Margin23.5%81.0%22.3%
Balance Sheet
Total Assets$2.1B$2.4B$3.6B$4.2B
Equity$2.0B$3.1B$3.5B
ROE20.8%56.8%17.6%

Source: XBRL financial data from Monolithic Power Systems (MPWR) 10-K filings on SEC EDGAR. All figures in USD. Key metrics include revenue, net income, gross profit, gross profit margin, operating income, EPS (diluted), total assets, stockholders' equity, return on equity (ROE), operating cash flow, and capital expenditure.

Latest 2026 SEC Filings — 10-K, 10-Q, 8-K & Form 4

FormFiling DatePeriodAnalysisSEC
8-K
Apr 30, 2026
10-K
Feb 27, 2026Dec 31, 2025Analysis
8-K
Feb 27, 2026Analysis
8-K
Feb 5, 2026
8-K
Dec 12, 2025
10-Q
Nov 5, 2025Sep 30, 2025Analysis
10-Q
Aug 4, 2025Jun 30, 2025
10-Q
May 5, 2025Mar 31, 2025
10-K
Mar 3, 2025Dec 31, 2024Analysis
10-Q
Nov 6, 2024Sep 30, 2024
10-Q
Aug 2, 2024Jun 30, 2024
10-Q
May 3, 2024Mar 31, 2024
10-K
Feb 29, 2024Dec 31, 2023
10-Q
Nov 8, 2023Sep 30, 2023
10-Q
Aug 4, 2023Jun 30, 2023
10-Q
May 5, 2023Mar 31, 2023
10-K
Feb 24, 2023Dec 31, 2022
10-Q
Nov 9, 2022Sep 30, 2022
10-Q
Aug 5, 2022Jun 30, 2022
10-Q
May 10, 2022Mar 31, 2022
10-K
Feb 25, 2022Dec 31, 2021
10-Q
Nov 8, 2021Sep 30, 2021
10-Q
Aug 9, 2021Jun 30, 2021
10-Q
May 10, 2021Mar 31, 2021
10-K
Mar 1, 2021Dec 31, 2020

Frequently Asked Questions

What are the latest MPWR SEC filings in 2026?

Monolithic Power Systems (MPWR) has filed a 10-K annual report on February 27, 2026, a 10-Q quarterly report on November 5, 2025, an 8-K current report on April 30, 2026 with the SEC. SignalX tracks every new SEC EDGAR filing daily, including 10-K, 10-Q, 8-K, and Form 4 insider transactions, with AI-powered summaries of key sections.

When did MPWR file its most recent 10-K annual report?

Monolithic Power Systems (MPWR) filed its most recent 10-K annual report on February 27, 2026. The 10-K includes audited financial statements, business overview, risk factors, and management discussion, all available on SignalX with AI-generated summaries and XBRL financial data.

How do I view MPWR 10-Q quarterly reports?

Monolithic Power Systems (MPWR)'s most recent 10-Q quarterly report was filed on November 5, 2025. SignalX displays every MPWR 10-Q with AI-generated summaries of the MD&A (Management Discussion & Analysis) and Risk Factors sections, plus links to the original SEC EDGAR document.

What 8-K current reports has MPWR filed recently?

Monolithic Power Systems (MPWR)'s most recent 8-K was filed on April 30, 2026. 8-K filings disclose material corporate events such as earnings releases, executive changes, mergers, and other significant developments. SignalX surfaces each 8-K with item-level summaries so you can quickly see what happened.

Where can I find MPWR insider trading activity (Form 4)?

SignalX aggregates every MPWR Form 4 insider transaction from SEC EDGAR. Form 4 reports show when officers, directors, and 10% shareholders buy or sell company stock, with transaction code, share count, and price per share.

How often does MPWR file with the SEC?

Monolithic Power Systems (MPWR) files a 10-K annual report once per year (typically within 60 days of fiscal year-end) and 10-Q quarterly reports three times per year. 8-K current reports are filed as needed when material events occur, and Form 4 insider transaction reports are due within two business days of a trade. SignalX monitors SEC EDGAR daily to surface every new MPWR filing with AI-powered analysis.

What is the difference between 10-K, 10-Q, and 8-K SEC filings?

A 10-K is a comprehensive annual report with audited financials, business overview, and risk factors. A 10-Q is a shorter quarterly report with unaudited financials and management discussion. An 8-K is a current report filed when a material event occurs — such as earnings releases, executive changes, acquisitions, or other significant developments. SignalX provides AI-generated summaries for all three filing types for Monolithic Power Systems (MPWR).

What is MPWR's SEC CIK number?

Monolithic Power Systems (MPWR)'s SEC CIK (Central Index Key) number is 1280452. The CIK is a unique identifier assigned by the SEC to every filing entity. You can use CIK 1280452 to look up all MPWR filings on SEC EDGAR, or browse them here on SignalX with AI-powered analysis.

Where can I find MPWR return on equity (ROE) and financial data?

SignalX extracts XBRL financial data from Monolithic Power Systems (MPWR) 10-K annual filings, including revenue, net income, gross profit, operating income, EPS, total assets, stockholders' equity, and operating cash flow. Return on equity (ROE) can be derived from net income divided by stockholders' equity. Multi-year financial trends are displayed in the Financial Summary table above.

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