Screener / SEC EDGAR /CIK 0001280452 /10-K filed Feb 27, 2026, compared with Mar 3, 2025 /Numbers from the XBRL of the 10-Ks
Nasdaq Technology · Semiconductors

Monolithic Power Systems MPWR

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Filings with the SEC since Nov 15, 2019

1,004 filings, 6 in the last 30 days

SEC filing index

What the 8-Ks said

3 events in the last 3 years: the officer, auditor, restatement, cyber, restructuring, listing, impairment and debt items. One line each, the filing's own words.

CEO, CFO, COO or CAO: 2 (item 5.02)Auditor change: 0 (item 4.01)Not to be relied on: 1 (item 4.02)Cybersecurity: 0 (item 1.05)Restructuring: 0 (item 2.05)Listing notice: 0 (item 3.01)Impairment: 0 (item 2.06)Debt trigger: 0 (item 2.04)
  • Oct 29, 2026 CEO, CFO, COO or CAOCFO and CAO change “On October 27, 2026, the Board of Directors of the Company (“the Board”) appointed Tony Balow, age 56, as Vice President, Chief Financial Officer, effective immediately.” 8-K item 5.02 · all documents
  • Feb 27, 2026 Not to be relied onSaid earlier financial statements can no longer be relied on “Non-Reliance on Previously Issued Financial Statements or a Related Audit Report or Completed Interim Review On February 26, 2026, the Audit Committee of the Board of Directors of Monolithic Power Systems, Inc. (the “Company”), after discussion with senior management, determined that the Company’s previously issued audited consolidated financial statements included in its annual report on Form…” 8-K item 4.02 · all documents
  • Feb 5, 2026 CEO, CFO, COO or CAOCFO change “On February 3, 2026, Bernie Blegen informed the Company’s Board of Directors (the “Board”) of his intention to retire from his position as Executive Vice President and Chief Financial Officer.” 8-K item 5.02 · all documents

From the SEC filing index and the text of each 8-K. A line appears only when the 8-K names one of these items; for item 5.02 only a move of the CEO, CFO, COO or chief accounting officer. Older 8-Ks may have no text downloaded, so they show no quote.

Late filings, 8-K notices and going concern

None found in the last 2 years

All checks
  • Late filing notices (NT 10-K, NT 10-Q)
    No notice in the last 2 years.
  • 8-K notices: listing, impairment, debt trigger
    No item 3.01, 2.06 or 2.04 in the last 2 years.
  • Going-concern language in the 10-K
    No statement of substantial doubt in the latest 10-K.

Facts to read in the filing, not a verdict: many companies with one of these carry on normally, and a company with neither can still have problems.

Every filing on one line

Each mark is a filing or an event in one; the bigger square is a 10-K. Hover for what it is, click to open it.

Annual report (10-K)Quarterly report (10-Q)Current report (8-K)Auditor changeCEO, CFO, COO or CAO changeRestatementLate filing noticeInsider purchaseCluster buy (3+ insiders)SEC comment letterShare offering (S-3, 424B)Planned insider sale (Form 144, 10b5-1)
All 112 events

From the SEC filing index. Insider purchases go back 180 days (the Form 4s downloaded).

Every filing

Newest first, by kind · each form links to sec.gov

FiledFormWhat it is
Aug 21, 2025 4 Insider trade
Aug 18, 2025 4 Insider trade
Aug 15, 2025 144 Notice of planned insider sale
Aug 15, 2025 4 Insider trade
Aug 13, 2025 144 Notice of planned insider sale
Aug 13, 2025 4 Insider trade
Aug 12, 2025 144 Notice of planned insider sale
Aug 12, 2025 4 Insider trade
Aug 8, 2025 4 Insider trade
Aug 4, 2025 10-Q Quarterly report
Aug 4, 2025 4 Insider trade
Aug 4, 2025 4 Insider trade
Aug 1, 2025 144 Notice of planned insider sale
Aug 1, 2025 144 Notice of planned insider sale
Jul 31, 2025 8-K Quarterly results
Jul 29, 2025 SCHEDULE 13G/A 5%+ owner (passive), amended
Jul 2, 2025 4 Insider trade
Jul 1, 2025 144 Notice of planned insider sale
Jun 16, 2025 8-K Bylaws or fiscal year changed, Shareholder vote results, Other events
May 30, 2025 4 Insider trade
May 28, 2025 SD Conflict minerals report
May 15, 2025 144 Notice of planned insider sale
May 13, 2025 4 Insider trade
May 12, 2025 144 Notice of planned insider sale
May 12, 2025 4 Insider trade
May 12, 2025 4 Insider trade
May 9, 2025 4 Insider trade
May 9, 2025 4 Insider trade
May 8, 2025 144 Notice of planned insider sale
May 5, 2025 10-Q Quarterly report
May 2, 2025 DEFR14A
May 1, 2025 8-K Quarterly results
Apr 30, 2025 ARS Annual report to shareholders
Apr 30, 2025 DEFA14A Extra proxy material
Apr 30, 2025 DEF 14A Proxy statement
Apr 18, 2025 PRE 14A
Mar 26, 2025 8-K Bylaws or fiscal year changed
Mar 20, 2025 8-K Regulation FD disclosure
Mar 3, 2025 10-K Annual report
Feb 20, 2025 4 Insider trade
Feb 20, 2025 4 Insider trade
Feb 18, 2025 144 Notice of planned insider sale
Feb 13, 2025 4 Insider trade
Feb 12, 2025 4 Insider trade
Feb 12, 2025 4 Insider trade
Feb 12, 2025 4 Insider trade
Feb 12, 2025 4 Insider trade
Feb 12, 2025 4 Insider trade
Feb 11, 2025 4 Insider trade
Feb 11, 2025 4 Insider trade
Feb 10, 2025 144 Notice of planned insider sale
Feb 10, 2025 144 Notice of planned insider sale
Feb 10, 2025 144 Notice of planned insider sale
Feb 10, 2025 144 Notice of planned insider sale
Feb 10, 2025 144 Notice of planned insider sale
Feb 7, 2025 144 Notice of planned insider sale
Feb 7, 2025 144 Notice of planned insider sale
Feb 6, 2025 8-K Quarterly results, Other events
Feb 6, 2025 4 Insider trade
Feb 6, 2025 4 Insider trade
Feb 6, 2025 4 Insider trade
Feb 6, 2025 4 Insider trade
Feb 6, 2025 4 Insider trade
Feb 6, 2025 4 Insider trade
Jan 28, 2025 4 Insider trade
Jan 24, 2025 144 Notice of planned insider sale
Dec 13, 2024 8-K Other events
Dec 11, 2024 4 Insider trade
Dec 9, 2024 144 Notice of planned insider sale
Nov 13, 2024 4 Insider trade
Nov 13, 2024 4 Insider trade
Nov 13, 2024 4 Insider trade
Nov 13, 2024 4 Insider trade
Nov 13, 2024 4 Insider trade
Nov 12, 2024 8-K Regulation FD disclosure
Nov 12, 2024 SC 13G/A 5%+ owner (passive), amended
Nov 8, 2024 144 Notice of planned insider sale
Nov 8, 2024 144 Notice of planned insider sale
Nov 8, 2024 144 Notice of planned insider sale
Nov 8, 2024 144 Notice of planned insider sale
Nov 8, 2024 144 Notice of planned insider sale
Nov 6, 2024 10-Q Quarterly report
Nov 5, 2024 4 Insider trade
Nov 1, 2024 144 Notice of planned insider sale
Oct 30, 2024 8-K Quarterly results
Oct 22, 2024 8-K Director or officer change
Oct 8, 2024 4 Insider trade
Oct 7, 2024 144 Notice of planned insider sale
Oct 2, 2024 4 Insider trade
Oct 1, 2024 144 Notice of planned insider sale
Sep 13, 2024 8-K Other events
Sep 3, 2024 144 Notice of planned insider sale
Sep 3, 2024 4 Insider trade
Aug 29, 2024 4 Insider trade
Aug 29, 2024 4 Insider trade
Aug 28, 2024 144 Notice of planned insider sale
Aug 27, 2024 144 Notice of planned insider sale
Aug 22, 2024 144 Notice of planned insider sale
Aug 22, 2024 4 Insider trade
Aug 21, 2024 4 Insider trade
Show the other 75 filings on this page

Press releases with quarterly results are attached to the 8-Ks marked "Quarterly results"; read them on Earnings releases.

Sources

SEC's filing index (data.sec.gov submissions). Each form links to the document on sec.gov.

Also

Earnings releases: the text of each quarter's results release. Statements by period: the income statement, balance sheet or cash flow of the last filings side by side.

Work with it

Excel workbook · CSV. Google Sheet that stays up to date: paste =IMPORTDATA("https://tickdelta.com/company/MPWR/export.csv") into a cell.

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