Form 4: Western Digital Director Sells WDC Stock Under 10b5-1 Plan
Insider Transaction Report
Western Digital Director Martin I. Cole sold 9,900 shares of common stock on November 5, 2025, under a pre-arranged Rule 10b5-1 trading plan.
Summary
- Martin I. Cole, a Director of Western Digital Corp. (WDC), reported the sale of 9,900 shares of WDC common stock.
- The transactions occurred on November 5, 2025.
- Sales were executed pursuant to a Rule 10b5-1 trading plan adopted on August 1, 2025.
- The shares were sold in multiple transactions at weighted average prices ranging from $152.99 to $164.9907 per share.
- Following these transactions, Martin I. Cole's direct beneficial ownership of WDC common stock decreased from 49,504 shares (before the sales) to 39,504 shares.
- The reported beneficial ownership includes 1,701 additional stock units acquired due to a spin-off on February 21, 2025, which adjusted outstanding stock units by an equity conversion ratio of 1.452526.
Sentiment
Score: 5
Explanation: The sentiment is neutral as the sales were conducted under a pre-arranged Rule 10b5-1 trading plan, indicating a planned divestment rather than a reaction to new material non-public information. This type of transaction is a routine disclosure for insiders.
Positives
- The sales were conducted under a pre-arranged Rule 10b5-1 trading plan, indicating a structured and pre-planned divestment strategy rather than a reaction to immediate non-public information.
Negatives
- A reduction in insider ownership, even if pre-planned, can sometimes be perceived as a lack of confidence by some investors, although this is mitigated by the 10b5-1 plan.
Future Outlook
NA
Industry Context
This Form 4 filing is specific to an individual insider's stock transactions and does not provide broader industry context or trends. Insider trading activity is a routine disclosure for publicly traded companies.
Corporate Governance
| Change Type | Description | Effective Date | Impact Assessment |
|---|---|---|---|
| Insider Trading Plan Disclosure | The sales were executed pursuant to a Rule 10b5-1 trading plan, which allows insiders to set up a pre-scheduled plan to buy or sell company stock, providing an affirmative defense against insider trading allegations. | 08/01/2025 | Enhances transparency regarding insider stock transactions and mitigates concerns about trading on material non-public information. |
Stakeholder Impact
- Shareholders: Minor impact due to a reduction in a director's direct ownership, but the pre-planned nature of the sale under a 10b5-1 plan generally reduces negative interpretations.
Key Dates
| Date | Description |
|---|---|
| 02/21/2025 | Effective time of the Issuer's spin-off of a wholly-owned subsidiary, leading to adjustment of stock units. |
| 08/01/2025 | Date the Rule 10b5-1 trading plan was adopted by the Reporting Person. |
| 11/05/2025 | Date of reported common stock sales by Martin I. Cole. |
| 11/06/2025 | Date the Form 4 was signed by the Attorney-in-Fact for Martin I. Cole. |
Keywords
Western Digital, WDC, Insider Trading, Form 4, Stock Sale, Martin I. Cole, 10b5-1 Plan, Director Transaction, Equity Sales
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