Rosenbaum Michael George sold $183K of GWRE
Rosenbaum Michael George (Chief Executive Officer) sold 1,200 shares of Guidewire Software, Inc. (GWRE) at $152.52 ($0.18M total) on 2026-10-05 under a Rule 10b5-1 trading plan.
How this was made
The 30-second read
Why it matters
The disclosed sale is modest in size relative to total holdings, but it is the first public notice of the transaction.
Market read
A small insider sell by the CEO may cause short‑term price pressure but is unlikely to move the broader market.
What to watch
Potential tax planning or portfolio rebalancing may drive the transaction, not company fundamentals.
Background
Form 4 filings disclose insider trades; investors monitor them for signals.
Ticker impact
CEO Michael George Rosenbaum sold 1,200 shares for $152.52 each, total $183K, via a 10b5‑1 plan.
likely pressure as the market prices in the insider sell
The sale is a disclosed insider transaction of a material executive; such sales often lead to short‑term price weakness.
Market effects
Minimal impact on the software sector; isolated insider activity.
No regional effect; limited to GWRE shareholders.
Low global relevance; only affects GWRE investors.
Counterpoint
The sale could be routine under a pre‑arranged plan and not indicate any negative outlook.
Key entities
- CompanyGuidewire Software, Inc.
Provider of core system software for the insurance industry.
- PersonMichael George Rosenbaum
Chief Executive Officer of Guidewire Software.



