Guidewire Software CAO Files Form 144 for Routine Sell-to-Cover

Executive Summary

On September 17, 2026, David Franklin Peterson, Chief Accounting Officer of Guidewire Software, Inc. ($GWRE), filed a Form 144 notice proposing the sale of 1,905 shares of common stock through Morgan Stanley Smith Barney LLC. The aggregate market value of the shares is reported at $275,218.70, implying a share price of approximately $144.47.

Transaction Details and Context

• Nature of Transaction: Non-discretionary automatic sell-to-cover transaction.
• Underlying Shares: The filing specifies that the shares are being liquidated to satisfy statutory tax withholding obligations resulting from the vesting of Restricted Stock Units (RSUs) and Performance Stock Units (PSUs) on September 15, 2026, under the Issuer's Amended and Restated 2020 Stock Plan.
• Securities Acquired: The insider acquired an aggregate of 5,007 shares across various RSU/PSU grants (259 RSUs from 2022, 4,351 PSUs from 2023, 200 RSUs from 2023, 145 RSUs from 2024, and 52 RSUs from 2025).
• Prior Activity: Over the preceding three months, Peterson sold 2,500 shares on August 27, 2026, generating gross proceeds of $500,000.

Market Impact & Sentiment

• Significance: Low.
• Analysis: Because the proposed sale represents mandatory sell-to-cover activity associated with equity incentive vesting rather than a discretionary divestment, it carries neutral sentiment and poses negligible impact on the company's 81,992,669 outstanding shares.