Company: AHL
Filing Date: 2025-05-08
Form Type: 424B4
Source: 0001628280-25-023859
Chunk: 501

Company: ASPEN INSURANCE HOLDINGS LTD
Filing Date: 2025-05-08
Form: 424B4
Chunk 501
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 December 31, 2024, 2023 and 2022</div>

### Supplementary Information
<div align='center'>($ in millions)</div>

| Year Ended December 31, 2024 |     | Deferred    
 Policy      
 Acquisition 
 Costs       |       |     | Net        
 Reserves   
 for Losses 
 and LAE    |         |     | Net      
 Reserves 
 for      
 Unearned 
 Premiums |         |     | Net      
 Earned   
 Premiums |         |     | Net        
 Investment 
 Income     |       |     | Losses and 
 LAE        
 Expenses   |         |     | Policy      
 Acquisition 
 Expenses    |       |     | Net      
 Written  
 Premiums |         |     | General        
 and            
 Administrative 
 Expenses       |       |
|:-----------------------------|:----|:------------|------:|:----|:-----------|--------:|:----|:---------|--------:|:----|:---------|--------:|:----|:-----------|------:|:----|:-----------|--------:|:----|:------------|------:|:----|:---------|--------:|:----|:---------------|------:|
| Reinsurance                  |     | $           | 248.2 |     | $          | 1,691.5 |     | $        |   580.0 |     | $        | 1,305.7 |     |            |       |     | $          |   741.3 |     | $           | 227.0 |     | $        | 1,275.7 |     | $              | 141.7 |
| Insurance                    |     |             |  73.9 |     |            | 2,259.1 |     |          | 1,164.1 |     |          | 1,584.0 |     |            |       |     |            |   976.5 |     |             | 193.2 |     |          | 1,666.9 |     |                | 264.2 |
| Total                        |     | $           | 322.1 |     | $          | 3,950.6 |     | $        | 1,744.1 |     | $        | 2,889.7 |     | $          | 318.0 |     | $          | 1,717.8