Company · Ownership research

WESTERN DIGITAL CORP WDC

CIK 0000106040

Form 4 transactions dated Nov 1, 2023 to Nov 8, 2026, as reported to the SEC.

Insider trading Initial holdings Institutional holders

This page lists 30 of 232 rows; the complete set is available through the API.

Insider filings on file run through Oct 30, 2026.

Insider purchases & sales

Purchased: $0.00
Sold: $101.50M

Nov 1, 2023 – Oct 30, 2026
Available records · partial months are marked ·

202510 of 23 preview events

Date	Insider	Activity	Trade value (USD)	% of prior holding
Dec 5, 2025	Gubbi Vidyadhara K Chief of Global Operations	Sale	$1.50M 8,943 shares sold	6.59% sold Direct holding	▾
Dec 4, 2025	Gubbi Vidyadhara K Chief of Global Operations	Sale	$2.22M 13,877 shares sold	9.27% sold Direct holding	▾
Dec 4, 2025	Alexy Kimberly Director	Sale	$320.16K 2,000 shares sold	55.79% sold Direct holding	▾
Dec 2, 2025	Tregillis Cynthia L Chief Legal Officer & Corp Sec	Sale	$449.75K 2,801 shares sold	1.90% sold Direct holding	▾
Dec 1, 2025	Cole Martin I Director	Sale10b5-1 footnote	$975.70K 6,000 shares sold	14.48% sold Direct holding	▾
Nov 25, 2025	Oulman Roxanne Director	Sale	$277.96K 1,800 shares sold	31.79% sold Direct holding	▾
Nov 25, 2025	Alexy Kimberly Director	Sale	$272.27K 1,768 shares sold	33.03% sold Direct holding	▾
Nov 5, 2025	Cole Martin I Director	Sale10b5-1 footnote	$1.61M 10,000 shares sold	20.20% sold Direct holding	▾
Nov 3, 2025	Tan Irving Chief Executive Officer · Director	Sale10b5-1 footnote	$3.01M 20,000 shares sold	3.01% sold Direct holding	▾
Sep 4, 2025	Gubbi Vidyadhara K Chief of Global Operations	Sale	$1.02M 11,343 shares sold	6.96% sold Direct holding	▾

Showing 23 / 23 record groups in 2025. The complete set is available through the API.

WESTERN DIGITAL CORP · WDC

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The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. For the year shown, this page lists 23 of 23 purchase / sale groups and 30 of 232 other groups; the totals and the monthly series cover the whole window.

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{"action":"list","ticker":"WDC","transaction_code":["P","S"],"transaction_form_type":"4","page_size":20}

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Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.

Non-cancelled, non-derivative purchase (P) and sale (S) rows dated inside the public window, as reported. Share totals are on today's split-adjusted basis. Includes open-market and private transactions. Data after the latest filing is not asserted complete and is not zero-filled. A grouped event shares filing, transaction date, security, code, direction, ownership bucket and source. Derivative groups also match underlying security, exercise price, exercise/expiration dates and footnote references. Reported rows are retained; P/S price lots can be grouped. Post-transaction balances are never summed.