Guidewire Software Officer Files Form 144 Notice to Sell $200K in Stock

Executive Summary

On September 18, 2026, James Winston King, an Officer of Guidewire Software, Inc. ($GWRE), submitted a Form 144 notice proposing the sale of 1,381 shares of common stock through Morgan Stanley Smith Barney LLC. The aggregate market value of the proposed sale is approximately $200,217.38.

Transaction Details

• Security: Common Stock
• Number of Shares: 1,381
• Estimated Aggregate Value: $200,217.38 (~$144.98 per share)
• Acquisition Origin: Acquired on September 15, 2026, via restricted stock vesting from the issuer.
• Trading Plan: The proposed sale is executed pursuant to a pre-arranged Rule 10b5-1 trading plan adopted on April 9, 2026.

Historical Context

In the preceding three months, the reporting person completed two prior sales:

• September 17, 2026: 11,814 shares sold for $1,706,784.92 gross proceeds.
• July 9, 2026: 1,684 shares sold for $219,997.76 gross proceeds.

Market Impact & Significance

Trading significance is evaluated as Low. The proposed transaction represents less than 0.01% of the company's 81,992,669 shares outstanding and is conducted pursuant to a pre-scheduled Rule 10b5-1 trading plan following a recent equity vesting event.