Guidewire Software CEO/Director Mike Rosenbaum Files Form 144 to Sell 1,200 Shares Under 10b5-1 Plan
Guidewire Software, Inc.
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Filing Summary
š Form 144 Notice: Guidewire Software, Inc. (GWRE) ā¢ Insider: Mike Rosenbaum (Officer & Director) ā¢ Shares Proposed to Sell: 1,200 Common Shares ā¢ Approx. Market Value: $183,024.00 (~$152.52/share) ā¢ Approx. Sale Date: 10/05/2026 ā¢ Broker: Morgan Stanley Smith Barney LLC ā¢ Trading Plan: Rule 10b5-1 plan adopted 10/14/2025 ā¢ Significance: Low (routine planned sale representing <0.01% of shares outstanding)
Comprehensive Analysis
Transaction Overview
Guidewire Software, Inc. Officer and Director Mike Rosenbaum filed a Form 144 notice of proposed sale covering 1,200 shares of Common Stock with an estimated aggregate market value of $183,024.00 (approximately $152.52 per share). The proposed sale date is October 5, 2026, executed through Morgan Stanley Smith Barney LLC.
Origin and Trading Plan
- Acquisition Source: The shares were acquired on September 15, 2023, as Performance Shares directly from the issuer.
- Trading Plan: The proposed transaction is scheduled pursuant to a Rule 10b5-1 trading plan adopted on October 14, 2025.
Prior 3-Month Activity
The filing lists regular weekly sales of 1,200 shares across July, August, and September 2026, in addition to a larger disposition of 72,290 shares on September 17, 2026, which generated gross proceeds of $10,443,869.86.
Market Impact & Significance
Trading significance is evaluated as Low. The proposed transaction involves only 1,200 shares against 81,992,669 shares outstanding (negligible percentage) and conforms to a pre-established Rule 10b5-1 plan.
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