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Western Digital Corp. SEC filings

Western Digital filed 24 documents with the SEC in the last twelve months, the latest report being the 10-Q of 23 October 2026.

Filings in twelve months2415 of them 8-K news
Latest report10-Qfiled 23 Oct 2026
Latest filing10-Q23 Oct 2026
Last results, two-day move-9.2%results filed 22 Oct 2026
New to this? How to read this page
  1. Companies file with the SEC when something happens. 10-Q and 10-K are the quarterly and annual reports; 8-K is news that cannot wait for the next report.
  2. An 8-K says which items it covers, such as results, a change at the top or a big contract. A foreign company files a 6-K instead.
  3. The results release is usually an 8-K filed the day results come out, before the 10-Q or 10-K.
  4. Every filing links to the original on EDGAR, the SEC's own site.

Twelve months of filings

by kind

Most of the filings were other company news (11). Results came out 4 times.

Each mark is one filing on the day it was filed, in rows by kind. Hover or tap a mark for the form and what it was about.

The share price around each results release

close before to close after

Over the last 4 releases the share price moved 10.5% on average in the two days around results, the most on 5 Aug 2026 (-17.7%).

29 Jan 2026-10.5%$279.70 to $250.23
30 Apr 2026+4.5%$412.76 to $431.52
5 Aug 2026-17.7%$548.56 to $451.52
22 Oct 2026-9.2%$378.46 to $343.46
Daily closeResults filed

Each ring marks a results filing. The move runs from the last close before the filing to the first close after it, so it covers results released before the open or after the close. Hover the line for any day's close.

What the company told investors on 8-K

15 filings

Western Digital's 15 news filings (8-K) were mostly about other events (6) and results of operations (4).

  • Other eventsNews the company chose to file
    6 · latest 14 Sep 2026
  • Results of operationsThe quarterly results release
    4 · latest 22 Oct 2026
  • Unregistered sale of equityShares sold privately
    4 · latest 27 Aug 2026
  • Regulation FD disclosureMaterial shared with investors, often slides or a presentation
    2 · latest 14 Sep 2026
  • Officer or director changeSomeone joined, left or changed role at the top
    2 · latest 28 May 2026
  • Charter or bylaw amendment, or fiscal year changeThe company's rules or fiscal year changed
    1 · latest 24 Feb 2026
  • Change to security holders' rightsShareholders' rights changed
    1 · latest 18 Feb 2026
  • Shareholder voteResults of a vote at a shareholder meeting
    1 · latest 24 Nov 2025

Each line is one kind of news, with what it means in plain words. Each square is one filing; a filing can carry more than one kind, so the squares can add up to more than the filings. The date opens the latest one on EDGAR.

How it compares

every company on the site

    The bar ranks every company on the site from the lowest on the left to the highest on the right, in three equal thirds; the small figures under it are the values where each third starts, and the black tick is the middle company. The orange dot is this company; the grey ticks are the other companies in its industry (hover or tap for names). A hatched block is companies tied at none.

    Every filing as a table

    In the last twelve months Western Digital Corp. filed 24 documents with the SEC of the kinds listed here: 15 current reports (8-K), about 6 other events; 4 results of operations; 4 unregistered sale of equity; 2 regulation FD disclosure; 2 officer or director change; 3 quarterly reports (10-Q), 1 annual report to shareholders (ARS), 1 additional proxy material (DEFA14A), 1 proxy statement (DEF 14A), 1 annual report (10-K), 1 conflict minerals report (SD). The latest, filed 23 October 2026: 10-Q, quarterly report. The reports, the proxy statement and the prospectus themselves, where filed, each with a link to open it, are on the documents page.

    FiledFormWhat it was aboutPeriod or event dateFiling
    23 October 202610-Qquarterly report2 October 2026EDGAR
    22 October 20268-KResults of operations22 October 2026EDGAR
    5 October 2026ARSannual report to shareholders3 July 2026EDGAR
    5 October 2026DEFA14Aadditional proxy materialEDGAR
    5 October 2026DEF 14Aproxy statement20 November 2026EDGAR
    14 September 20268-KRegulation FD disclosure, Other events14 September 2026EDGAR
    27 August 20268-K/AUnregistered sale of equity26 August 2026EDGAR
    26 August 20268-KUnregistered sale of equity, Other events26 August 2026EDGAR
    14 August 202610-Kannual report3 July 2026EDGAR
    5 August 20268-KResults of operations5 August 2026EDGAR
    11 June 20268-KOther events11 June 2026EDGAR
    8 June 20268-K/AUnregistered sale of equity2 June 2026EDGAR
    3 June 20268-KUnregistered sale of equity, Other events2 June 2026EDGAR
    1 June 2026SDconflict minerals reportEDGAR
    28 May 20268-KOfficer or director change, Regulation FD disclosure26 May 2026EDGAR
    1 May 202610-Qquarterly report3 April 2026EDGAR
    30 April 20268-KResults of operations30 April 2026EDGAR
    24 February 20268-KCharter or bylaw amendment, or fiscal year change, Other events23 February 2026EDGAR
    18 February 20268-KChange to security holders' rights17 February 2026EDGAR
    9 February 20268-KOther events5 February 2026EDGAR
    30 January 202610-Qquarterly report2 January 2026EDGAR
    29 January 20268-KResults of operations29 January 2026EDGAR
    24 November 2025S-8employee share plan registrationEDGAR
    24 November 20258-KOfficer or director change, Shareholder vote20 November 2025EDGAR
    An 8-K is what a company files within four business days of a material event; the SEC numbers the events, and the words here are the SEC's own headings, shortened.
    Read moreForm 4, Form 144, 13F and Schedule 13D and 13G have their own pages. Prospectus supplements and correspondence are not listed.