Company: AHL
Filing Date: 2025-05-08
Form Type: 424B4
Source: 0001628280-25-023859
Chunk: 263

Company: ASPEN INSURANCE HOLDINGS LTD
Filing Date: 2025-05-08
Form: 424B4
Chunk 263
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 Officer - Reinsurance                                                                             |

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* Independent, Non-Executive Director

^ Non-Executive Director

#### Biographical Information
Biographical information on our directors and executive officers is set forth below.

#### Mark Cloutier
. Mr. Cloutier was appointed Executive Chair and Group Chief Executive Officer of Aspen in February 2019. He had previously been Executive Chairman of the Brit Group, a Lloyd’s of London insurer, since January 2017 and prior to this, he was Chief Executive Officer of the Brit Group from October 2011 following its acquisition by Apollo and certain other private equity firms. As Chief Executive Officer of the Brit Group, Mr. Cloutier led a major restructuring of Brit’s global business, the successful listing on the London Stock Exchange

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through an initial public offering in 2014 as well as the subsequent acquisition of the business by Fairfax Financial Holdings in 2015.

With over 35 years’ experience working in the international insurance and reinsurance sector in multiple jurisdictions including Canada, the United States, the United Kingdom, Bermuda, continental Europe, Asia, China and South Africa, Mr. Cloutier has held a number of Chief Executive Officer and senior executive positions, including Chief Executive Officer of the Alea Group, Chief Executive Officer of Overseas Partners Re and President of E.W. Blanch Insurance Services Inc. He served as a member of the Franchise Board and Audit Committee of the Society of Lloyd’s between February 2015 and June 2020 and was appointed to the Nomination and Governance Committee in February 2017.

He currently serves on the Board of Overseers of the Maurice R. Greenberg School of Risk Management, Insurance and Actuarial Science in New York and was appointed Deputy Chair of the Association of Bermuda Insurers and Reinsurers (“ABIR”) in December 2023.

Mr. Cloutier has worked with a variety of private equity investors including Apollo, CVC Capital Partners, Kohlberg Kravis Roberts & Co. L.P. and Fortress Investment Group LLC. He started his career in British Columbia, Canada with Brouwer and company independent loss adjusters before moving on to found his own firm, Maxwell Cloutier Adjusters Ltd. We believe Mr. Cloutier is qualified to serve as Executive Chair of the Board due to his extensive leadership experience in the insurance and reinsurance industries.

#### David Altmaier
. Mr. Altmaier was appointed to the Board in March 2023