Form 4: Guidewire CEO Michael Rosenbaum Executes Stock Sale
Statement of Changes in Beneficial Ownership
Guidewire Software CEO Michael Rosenbaum sold 1,200 shares of common stock under a pre-arranged 10b5-1 trading plan.
Summary
- CEO Michael Rosenbaum sold 1,200 shares of Guidewire Software (GWRE) common stock.
- The transaction occurred on June 1, 2026, at a price of $158.92 per share.
- The sale was executed automatically pursuant to a Rule 10b5-1 trading plan adopted on October 14, 2025.
- Following the transaction, the CEO retains beneficial ownership of 208,006 shares.
Sentiment
Score: 5
Explanation: StockSavvy.ai views this as a neutral event, as the sale was executed under a pre-planned 10b5-1 arrangement and represents a very small portion of the executive's total holdings.
Positives
- The sale was conducted via a pre-established 10b5-1 plan, indicating the transaction was non-discretionary and planned well in advance.
Negatives
- The transaction represents a reduction in the CEO's direct equity stake in the company.
Risks
- Insider selling can sometimes be perceived negatively by the market, regardless of the existence of a 10b5-1 plan.
Future Outlook
No forward-looking guidance regarding company operations was provided in this filing.
Industry Context
StockSavvy.ai notes that routine 10b5-1 sales by C-suite executives are standard corporate practice for liquidity and diversification, and generally do not signal a change in management's outlook on company performance.
Comparison to Industry Standards
- The use of 10b5-1 plans is the industry standard for executives to sell shares while avoiding potential accusations of insider trading.
- The volume of shares sold (1,200) is negligible relative to the CEO's total holdings (208,006), representing less than 0.6% of his position.
Stakeholder Impact
- Minimal impact on shareholders as the sale was pre-planned and represents a small fraction of the CEO's total ownership.
Next Steps
- No future actions or milestones were mentioned in this filing.
Key Dates
| Date | Description |
|---|---|
| 2025-10-14 | Date the 10b5-1 trading plan was adopted by the reporting person. |
| 2026-06-01 | Date of the stock sale transaction. |
| 2026-06-02 | Date the Form 4 was signed and filed. |
Keywords
Guidewire Software, GWRE, Insider Trading, Form 4, Michael Rosenbaum, Stock Sale
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