Screener / SEC EDGAR /CIK 0000106040 /10-K filed Aug 14, 2026, compared with Aug 14, 2025 /Numbers from the XBRL of the 10-Ks
Nasdaq Technology · Computer Storage

Western Digital WDC

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Filings with the SEC since Nov 9, 2018

1,006 filings, 7 in the last 30 days

SEC filing index

What the 8-Ks said

2 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: 0 (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)
  • Nov 3, 2025 CEO, CFO, COO or CAOCAO change “On October 31, 2025, the Board of Directors (the “Board”) of Western Digital Corporation (the “Company”) unanimously appointed Brad Feller as Senior Vice President and Chief Accounting Officer of the Company, effective November 14, 2025, to succeed Gene M.” 8-K item 5.02 · all documents
  • Jan 16, 2025 CEO, CFO, COO or CAOCFO change “The Company has commenced a comprehensive search for the role of Chief Financial Officer of the Company’s hard disk drive business following the Separation.” 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 101 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
Nov 5, 2026 SCHEDULE 13G/A 5%+ owner (passive), amended
Oct 30, 2026 4 Insider trade
Oct 29, 2026 144 Notice of planned insider sale
Oct 23, 2026 10-Q Quarterly report
Oct 22, 2026 8-K Quarterly results
Oct 22, 2026 4 Insider trade
Oct 21, 2026 144 Notice of planned insider sale
Oct 5, 2026 ARS Annual report to shareholders
Oct 5, 2026 DEFA14A Extra proxy material
Oct 5, 2026 DEF 14A Proxy statement
Sep 21, 2026 4 Insider trade
Sep 21, 2026 4 Insider trade
Sep 21, 2026 4 Insider trade
Sep 21, 2026 4 Insider trade
Sep 21, 2026 4 Insider trade
Sep 21, 2026 4 Insider trade
Sep 21, 2026 4 Insider trade
Sep 21, 2026 4 Insider trade
Sep 21, 2026 4 Insider trade
Sep 21, 2026 4 Insider trade
Sep 21, 2026 4 Insider trade
Sep 21, 2026 4 Insider trade
Sep 21, 2026 4 Insider trade
Sep 21, 2026 4 Insider trade
Sep 21, 2026 4 Insider trade
Sep 14, 2026 8-K Regulation FD disclosure, Other events
Sep 8, 2026 4 Insider trade
Sep 8, 2026 4 Insider trade
Sep 8, 2026 4 Insider trade
Sep 4, 2026 144 Notice of planned insider sale
Sep 4, 2026 144 Notice of planned insider sale
Sep 2, 2026 4 Insider trade
Sep 2, 2026 4 Insider trade
Aug 31, 2026 144 Notice of planned insider sale
Aug 27, 2026 144 Notice of planned insider sale
Aug 27, 2026 4 Insider trade
Aug 27, 2026 4 Insider trade
Aug 27, 2026 4 Insider trade
Aug 27, 2026 4 Insider trade
Aug 27, 2026 4 Insider trade
Aug 27, 2026 4 Insider trade
Aug 27, 2026 4 Insider trade
Aug 27, 2026 8-K/A Unregistered share sale
Aug 26, 2026 144 Notice of planned insider sale
Aug 26, 2026 8-K Unregistered share sale, Other events
Aug 24, 2026 144 Notice of planned insider sale
Aug 24, 2026 4 Insider trade
Aug 24, 2026 4 Insider trade
Aug 24, 2026 4 Insider trade
Aug 24, 2026 4 Insider trade
Aug 21, 2026 144 Notice of planned insider sale
Aug 14, 2026 10-K Annual report
Aug 12, 2026 4 Insider trade
Aug 11, 2026 144 Notice of planned insider sale
Aug 6, 2026 SCHEDULE 13G/A 5%+ owner (passive), amended
Aug 5, 2026 8-K Quarterly results
Jul 31, 2026 SCHEDULE 13G/A 5%+ owner (passive), amended
Jul 29, 2026 4 Insider trade
Jul 29, 2026 4 Insider trade
Jul 21, 2026 144 Notice of planned insider sale
Jul 21, 2026 4 Insider trade
Jun 22, 2026 4 Insider trade
Jun 22, 2026 4 Insider trade
Jun 22, 2026 4 Insider trade
Jun 22, 2026 4 Insider trade
Jun 22, 2026 4 Insider trade
Jun 22, 2026 4 Insider trade
Jun 22, 2026 4 Insider trade
Jun 22, 2026 4 Insider trade
Jun 22, 2026 4 Insider trade
Jun 22, 2026 4 Insider trade
Jun 22, 2026 4 Insider trade
Jun 22, 2026 4 Insider trade
Jun 22, 2026 4 Insider trade
Jun 22, 2026 4 Insider trade
Jun 22, 2026 4 Insider trade
Jun 11, 2026 4 Insider trade
Jun 11, 2026 4 Insider trade
Jun 11, 2026 8-K Other events
Jun 9, 2026 144 Notice of planned insider sale
Jun 8, 2026 8-K/A Unregistered share sale
Jun 5, 2026 144 Notice of planned insider sale
Jun 5, 2026 4 Insider trade
Jun 5, 2026 4 Insider trade
Jun 5, 2026 4 Insider trade
Jun 3, 2026 8-K Unregistered share sale, Other events
Jun 2, 2026 4 Insider trade
Jun 1, 2026 144 Notice of planned insider sale
Jun 1, 2026 SD Conflict minerals report
May 29, 2026 4 Insider trade
May 28, 2026 144 Notice of planned insider sale
May 28, 2026 8-K Director or officer change, Regulation FD disclosure
May 28, 2026 4 Insider trade
May 28, 2026 3 New insider
May 27, 2026 144 Notice of planned insider sale
May 27, 2026 4 Insider trade
May 27, 2026 4 Insider trade
May 27, 2026 4 Insider trade
May 27, 2026 4 Insider trade
May 22, 2026 144 Notice of planned insider sale
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/WDC/export.csv") into a cell.

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