Company: AHL
Filing Date: 2025-05-07
Form Type: 8-A12B
Source: 0001628280-25-023145
Chunk: 0

Company: ASPEN INSURANCE HOLDINGS LTD
Filing Date: 2025-05-07
Form: 8-A12B
Chunk 0
---
### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### WASHINGTON, D.C. 20549

#### FORM 8-A

### FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES

#### PURSUANT TO SECTION 12(B) OR (G) OF

#### THE SECURITIES EXCHANGE ACT OF 1934

### ASPEN INSURANCE HOLDINGS LIMITED
<div align='center'>(Exact name of registrant as specified in its charter)</div>

| Bermuda                                  |     | 98-0501000                          |
| (State or other jurisdiction of          |     | -I.R.S. Employer Identification No. |
| incorporation or organization)           |     |                                     |
| 141 Front Street                         
 Hamilton                                 
 Bermuda                                  |     | HM19                                |
| (Address of principal executive offices) |     | -Zip Code                           |

<div align='center'>Securities to be registered pursuant to Section 12(b) of the Act:</div>

| Title of each class                                 
 to be so registered                                 |     | Name of each exchange on which 
 each class is to be registered |
| Class A Ordinary shares, par value $0.001 per share |     | New York Stock Exchange        |

If this form relates to the registration of a class of securities pursuant to Section 12(b) of the Exchange Act and is effective pursuant to General Instruction A.(c) or (e), check the following box. ☒

If this form relates to the registration of a class of securities pursuant to Section 12(g) of the Exchange Act and is effective pursuant to General Instruction A.(d) or (e), check the following box. ☐

If this form relates to the registration of a class of securities concurrently with a Regulation A offering, check the following box. ☐

Securities Act registration statement or Regulation A offering statement file number to which this form relates:

#### 333-276163
<div align='center'>Securities to be registered pursuant to Section 12(g) of the Act:</div>

#### None.

## Item 1. Description of Registrant’s Securities to be Registered.
The class of securities to be registered hereby is the Class A ordinary shares, par value $0.001 per share (the “ Ordinary Shares ”), of Aspen Insurance Holdings Limited, a Bermuda exempted company (the “ Registrant ”).

For a description of the Ordinary Shares being registered hereunder, reference is made to the information set forth under