Guidewire Software CEO Sells $224.6K in Common Stock Under Rule 10b5-1 Plan

Executive Summary

On October 26, 2026, Michael George Rosenbaum, Chief Executive Officer and Director of Guidewire Software, Inc. ($GWRE), executed an open-market sale of 1,200 shares of Common Stock at an average price of $187.19 per share, totaling approximately $224,628.

Transaction Details

• Security: Common Stock
• Transaction Code: S (Open-market sale)
• Shares Sold: 1,200 shares
• Execution Price: $187.19 per share
• Total Transaction Value: $224,628.00
• Remaining Holdings: 273,666 shares held directly

Analysis & Significance

• Plan Details: The sale was executed automatically under a pre-arranged Rule 10b5-1 trading plan established on October 14, 2025.
• Portfolio Impact: The 1,200 shares sold represent roughly 0.44% of the CEO's direct holdings prior to the transaction. Rosenbaum continues to retain a substantial stake of 273,666 direct shares.
• Market Signal: The trading significance is rated Low. Because this transaction was modest in volume, executed under a standard 10b5-1 plan adopted a year prior, and leaves nearly the entire ownership position intact, it reflects routine liquidity management rather than a sentiment-driven signal on company performance.