Company: AHL
Filing Date: 2025-05-08
Form Type: 424B4
Source: 0001628280-25-023859
Chunk: 416

Company: ASPEN INSURANCE HOLDINGS LTD
Filing Date: 2025-05-08
Form: 424B4
Chunk 416
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 underwriting expertise. References to the “Company,” the “Group,” “we,” “us” or “our” refer to Aspen Holdings or Aspen Holdings and its consolidated subsidiaries.

Since February 2019, the Company has been a wholly-owned subsidiary of Highlands Bermuda Holdco, Ltd. (“Parent”), which holds all of the Company’s ordinary shares. Parent, a Bermuda exempted company, is an affiliate of certain investment funds managed by affiliates of Apollo Global Management, Inc., a leading global investment manager (collectively with its subsidiaries, “Apollo”). The Company’s preference shares and depositary shares, as at the date of this prospectus, are listed on the New York Stock Exchange (“NYSE”) under the following symbols: AHL PRD, AHL PRE and AHL PRF.

#### 2.
Basis of Presentation and Significant Accounting Policies

The consolidated financial statements of Aspen Holdings are prepared in accordance with United States Generally Accepted Accounting Principles (“U.S. GAAP”) and are presented on a consolidated basis including the transactions of all operating subsidiaries in which the Company has a controlling financial interest and variable interest entities (“VIE”) in which the Company is considered to be the primary beneficiary. Transactions between Aspen Holdings and its subsidiaries are eliminated within the consolidated financial statements.

The consolidated financial statements have been prepared on a going concern basis.

(a)

#### Use of Estimates
Assumptions and estimates made by management have a significant effect on the amounts reported within the consolidated financial statements. The most significant of these relate to losses and loss adjustment expenses, reinsurance recoverables, gross written premiums and commissions which have not been reported to the Company such as those relating to proportional treaty reinsurance contracts, unrecognized tax benefits, recoverability of deferred tax assets, the fair value of derivatives and the fair value of other and privately-held investments. All material assumptions and estimates are regularly reviewed and adjustments made as necessary but actual results could be significantly different from those expected when the assumptions or estimates were made.

(b)

### Accounting for Insurance and Reinsurance Operations
Premiums Earned . Premiums are generally recorded as written on the inception date of a policy. For proportional reinsurance treaty contracts, written premiums are generally recorded as the reinsured policies attach to the treaty. For multi-year insurance or reinsurance contracts, written premiums are recorded based on the contract terms. Premiums are recognized as revenues proportionately over the coverage period. Premiums earned are recorded in the consolidated statements of operations, net of the cost of purchased reinsurance. Premiums written which are not yet recognized as earned premium