KIDDOO BRUCE E 4

What Happened
Bruce E. Kiddoo, a director of Western Digital Corp. (WDC), sold 750 shares in an open-market transaction on May 28, 2026. The shares were sold at $528.52 each for a total proceeds of $396,390. This was a sale (disposition), not a purchase or option exercise.

Key Details

• Transaction date: 2026-05-28; Filing date (Form 4): 2026-05-29 (filed the next day).
• Transaction type: Open-market sale (Code S).
• Shares sold: 750; Price per share: $528.52; Total value: $396,390.
• Shares owned after transaction: Not disclosed in the Form 4 filing.
• Footnotes/plan references: None disclosed (no 10b5-1 plan or tax-withholding notation shown).
• Timeliness: Filing appears timely (filed one day after the sale).

Context
Sales by corporate insiders can be routine (for diversification, tax planning, or other personal reasons) and do not on their own indicate the company’s outlook. Purchases tend to be more directly interpreted as a positive signal; this filing documents a routine open-market sale by a board member, with no additional explanatory notes attached.