Form 4: Guidewire Software CEO Sells Shares Under 10b5-1 Plan

Guidewire Software, Inc. reports that CEO Michael George Rosenbaum sold 1,200 shares of common stock on April 13, 2026, as part of a pre-arranged 10b5-1 trading plan.

Summary

• Michael George Rosenbaum, CEO of Guidewire Software, Inc., sold 1,200 shares of common stock on April 13, 2026.
• The sale was executed at a price of $118.77 per share.
• This transaction was made under an automatic sale pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on October 14, 2025.
• Following the transaction, Mr. Rosenbaum beneficially owns 216,406 shares of common stock.

Sentiment

Score: 5

Explanation: StockSavvy.ai views this filing as neutral. While an insider sale can be a negative signal, the execution under a pre-arranged 10b5-1 plan mitigates concerns about opportunistic trading.

Negatives

• CEO sold a portion of his holdings, which could be perceived negatively by the market, although it was executed under a pre-planned trading strategy.

Risks

• The sale of shares by a key executive could be interpreted as a lack of confidence in the company's future performance, despite being part of a pre-established plan.

Future Outlook

No specific future outlook or guidance is provided in this filing, as it solely reports a stock transaction by an insider.

Industry Context

StockSavvy.ai notes that insider sales, even those conducted under a 10b5-1 plan, are closely watched by the market. While these plans are designed to avoid accusations of insider trading by establishing a predetermined schedule for buying or selling securities, they can still influence investor sentiment. The software industry, particularly cloud-based solutions like those offered by Guidewire, often sees executives managing their stock portfolios through such plans.

Stakeholder Impact

• Shareholders: May interpret the CEO's sale as a minor negative signal, though the 10b5-1 plan context may temper this concern.
• Employees: Similar to shareholders, the sale might be viewed with caution, but the planned nature of the transaction is a key factor.
• Creditors: No direct impact expected from this transaction.
• Suppliers/Customers: No direct impact expected from this transaction.

Next Steps

• Continued monitoring of Guidewire Software's stock performance and any further insider transactions.

Key Dates

Keywords

Guidewire Software, GWRE, Form 4, Insider Trading, 10b5-1 Plan, Stock Sale, CEO, Michael George Rosenbaum, Beneficial Ownership