Risk factors

Hanover Insurance Group (THG) risk factors

Item 1A of every Hanover Insurance Group, Inc. 10-K on file, and what changed from one year to the next.

  • 2026 10-K risk factors

    37 risks, 4 new, 4 dropped, 6 reworded since the prior year. New risks emphasize IT outages, AI adoption, cyberattacks, and third-party supplier failures across insurance operations.

    Filed Feb 20, 2026
  • 2025 10-K risk factors

    37 risks. Catastrophe, climate, reinsurance availability, and reinsurer collectability dominate exposure to property-and-casualty losses.

    Filed Feb 24, 2025
Hanover Insurance Group (THG) 10-K Risk Factors by Year | Gloomberb