Company: AHL
Filing Date: 2025-03-19
Form Type: 20-F
Source: 0001267395-25-000019
Chunk: 227

Company: ASPEN INSURANCE HOLDINGS LTD
Filing Date: 2025-03-19
Form: 20-F
Item: Item 5
Chunk 227
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 costs, and general and administrative expenses by net earned premiums.
Non-underwriting disclosures. We provide additional disclosures for corporate and other (non-operating) income and expenses. Corporate and other income and expenses include: corporate and other expenses, non-operating expenses, net investment income, net realized and unrealized investment gains or losses, changes in fair value of derivatives, interest expenses, net realized and unrealized foreign exchange gains or losses, and income taxes. These income and expense items are not allocated to our business segments as they are not directly related to our business segment operations and is consistent with how management measures the performance of its segments. We do not allocate our assets by business segments as we evaluate underwriting results of each segment separately from the results of our investment portfolio.
Segment profit or loss for each of our business segments is measured by underwriting income or loss. Refer to Item 18, Note 3 of our consolidated financial statements, “Segment Reporting” for information on gross and net premiums written and earned, underwriting income or loss, and combined ratios and reserves for each of our business segments.
Reinsurance 
Our Reinsurance segment consists of property catastrophe reinsurance, other property reinsurance, casualty reinsurance and specialty reinsurance. For a more detailed description of this segment, refer to Item 4, “Business Overview — Business Segments — Reinsurance” and Item 18, Note 3 of our consolidated financial statements, “Segment Reporting.” 

                                                                                                                                                                                                                Twelve Months Ended December 31,
                                                                                                              2024                         % Change                          2023                         % Change                          2022
                                                                                                                                                                                                         ($ in millions, except for percentages)
Underwriting Revenues                                                                                                                                                                                                                           
Gross written premiums                                                                                $1,885.8                          24.0      %                  $1,521.0                        (15.8)      %                  $1,807.0    
Net written premiums                                                                                   1,275.7                          16.2      %                   1,098.0                        (23.0)      %                   1,426.4    
Net earned premiums                                                                                    1,305.7                          13.1      %                   1,154.5                         (7.8)      %                   1,251.8    
Underwriting Expenses                                                                                                                                                                                                                           
Current accident year net losses and loss expenses, excluding catastrophe losses                         570.1                           5.8      %                     538.6                         (7.8)      %                     584.0    
Cata