Company: AHL
Filing Date: 2025-03-19
Form Type: 20-F
Source: 0001267395-25-000019
Chunk: 82

Company: ASPEN INSURANCE HOLDINGS LTD
Filing Date: 2025-03-19
Form: 20-F
Item: Item 4
Chunk 82
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.3            40.5      $                                                36.7      $                                                33.0  
  Property catastrophe reinsurance      430.2                                                           22.8      366.6                                            24.1      354.9                                            19.7  
  Other property reinsurance            408.8                                                           21.7      384.2                                            25.3      428.8                                            23.7  
  Specialty reinsurance                 283.5                                                           15.0      211.3                                            13.9      426.9                                            23.6  
  Total                                 $                                            1,885.8           100.0      $                                               100.0      $                                               100.0  

Casualty Reinsurance: Casualty reinsurance is written on an excess of loss, proportional and facultative basis and consists of U. S. treaty, international treaty and casualty facultative reinsurance. Our treaty business comprises exposures to workers’ compensation (including catastrophe), medical malpractice, general liability, auto liability, professional liability and excess liability including umbrella liability. Our facultative business reinsures mainly auto liability and general liability exposures.

Property Catastrophe Reinsurance: Property catastrophe reinsurance is generally written on a treaty excess of loss basis where we provide protection to an insurer for an agreed portion of the total losses from a single event in excess of a specified loss amount. In the event of a loss, most contracts provide for coverage of a second occurrence following the payment of a premium to reinstate the coverage under the contract, which is referred to as a reinstatement premium. The coverage provided under excess of loss reinsurance contracts may be on a worldwide basis or limited in scope to selected regions or geographical areas.

Other Property Reinsurance: Other property reinsurance includes property risks written on excess of loss and proportional treaties, facultative or single risk reinsurance. Risk excess of loss reinsurance provides coverage to a reinsured where it experiences a loss in excess of its retention level on a single “risk” basis. A “risk” in this context might mean the insurance coverage on one building or a group of buildings for fire or explosion or the insurance coverage under a single policy which the reinsured treats as a single risk. This line of business is generally less exposed to accumulations of exposures and losses but can still be impacted by catastrophes, such as earthquakes and hurricanes. Proportional treaty reinsurance provides proportional coverage to the reinsured, meaning that