Rosenbaum Michael George sold $193K of GWRE
Rosenbaum Michael George (Chief Executive Officer) sold 1,200 shares of Guidewire Software, Inc. (GWRE) at $160.52 ($0.19M total) on 2026-09-08 under a Rule 10b5-1 trading plan.
How this was made
The 30-second read
Why it matters
A CEO sell, even modest, can influence short‑term price dynamics and inform risk management.
Market read
The filing adds new insider‑sell data for GWRE, offering a marginal bearish cue for traders.
What to watch
Potential 10b5‑1 plan execution timing and tax considerations may drive the sale.
Background
Form 4 filings disclose insider transactions and are used by traders to gauge insider sentiment.
Ticker impact
CEO Michael Rosenbaum sold 1,200 shares of Guidewire Software (GWRE) for $192,624 on Sep 8, 2026.
Potential short-term dip of 1-2% in after‑hours trading.
While the amount is modest, a CEO sell can be viewed as a negative signal; however the size limits market impact.
Market effects
Limited effect on enterprise‑software sector sentiment; may slightly temper buying interest.
Negligible impact on broader US market given small transaction size.
No material relevance to global markets.
Counterpoint
The sale could be a routine portfolio rebalancing rather than a concern signal.
Key entities
- CompanyGuidewire Software, Inc.
Provider of software solutions for the insurance industry.
- ExecutiveMichael Rosenbaum
Chief Executive Officer of Guidewire Software.



