Company: AHL
Filing Date: 2025-05-08
Form Type: 424B4
Source: 0001628280-25-023859
Chunk: 439

Company: ASPEN INSURANCE HOLDINGS LTD
Filing Date: 2025-05-08
Form: 424B4
Chunk 439
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.9 |     |             |   445.1 |
| Total investments, available for sale  |     | $                    | 4,438.3 |     | $           | 4,231.1 |

Guaranteed Investments . As at December 31, 2024 and December 31, 2023, the Company held no investments which are guaranteed by mono-line insurers, excluding those with explicit government guarantees. The Company’s exposure to other third-party guaranteed debt is primarily to investments backed by non-U.S. government guaranteed issuers.

<div align='center'>F-31</div>

Gross Unrealized Losses, Available for Sale . The following tables summarize, by type of security, the aggregate fair value and gross unrealized loss by length of time the security has been in an unrealized loss position for the Company’s available for sale portfolio as at December 31, 2024 and December 31, 2023:

|                                                   |     | December 31, 2024                           |         |     |            |       |     |                |         |     |            |        |     |        |         |     |            |        |     |            |     |       |
|:--------------------------------------------------|:----|:--------------------------------------------|--------:|:----|:-----------|------:|:----|:---------------|--------:|:----|:-----------|-------:|:----|:-------|--------:|:----|:-----------|-------:|:----|:-----------|:----|------:|
|                                                   |     | 0-12 months                                 |         |     |            |       |     | Over 12 months |         |     |            |        |     | Total  |         |     |            |        |     |            |     |       |
|                                                   |     | Fair                                        
 Market                                      
 Value                                       |         |     | Gross      
 Unrealized 
 Losses     |       |     | Fair           
 Market         
 Value          |         |     | Gross      
 Unrealized 
 Losses     |        |     | Fair   
 Market 
 Value  |         |     | Gross      
 Unrealized 
 Losses     |        |     | Number of  
 Securities |     |       |
|                                                   |     | -$ in millions, except number of securities |         |     |            |       |     |                |         |     |            |        |     |        |         |     |            |        |     |