Insider Trading & Ownership of WESTERN DIGITAL CORP

Location: San Jose, CA
Summary: The estimated value of insider holdings of WESTERN DIGITAL CORP is at least $315,546,798 dollars as of 09 Jun 2025. WESTERN DIGITAL CORP is the 10%+ Owner of Sandisk Corp and owns shares of Sandisk Corp (SNDK) stock worth about $315.55M.
Signature: /s/ Brandi R. Steege, Assistant Secretary
All Insider Reports: All Insider Reports

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Quick Takeaways

WESTERN DIGITAL CORP has 1 issuer position tracked on this page.
Estimated disclosed ownership value: $315,546,798.
Recent insider filing activity is available below.

What Changed

Largest disclosed position: Sandisk Corp ($315,546,798).
Past-year value change for that position: .

Why This Matters

This page translates Forms 3/4/5 into a quick ownership context before you inspect each transaction row.
You can cross-check role, issuer, and filing chronology directly against the SEC source.

Source Evidence

Filed on Form 4

Insider ownership context is sourced from SEC Forms 3, 4, and 5.

See Original Filing

Ownership of WESTERN DIGITAL CORP

SNDK Forms 3/4/5

Sandisk Corp

Relationship: 10%+ Owner
Holdings value: $315,546,798
Past year net change
Change %
Report period: 09 Jun 2025

Insider Transactions Reported by WESTERN DIGITAL CORP:

Sym	Company	Class	Transaction	%	Value $	* Price $	Shares	Shares After	Date	Ownership

* An asterisk sign (*) next to the price indicates that the price is likely invalid.