ASPEN INSURANCE HOLDINGS LTD

Aspen underwrites specialty insurance and reinsurance globally through its Operating Subsidiaries and branch operations. The company's Operating Subsidiaries include Aspen Bermuda Limited in Bermuda, Aspen Specialty Insurance Company and Aspen American Insurance Company (AAIC) in the United States, and Aspen Insurance UK Limited (Aspen UK) and Aspen Underwriting Limited (AUL) in the United Kingdom. AUL is the sole corporate member of Aspen's Lloyd's operations, Syndicate 4711, which is managed by Aspen Managing Agency Limited (AMAL). Additionally, Aspen operates through branch offices in Canada, Singapore, and Switzerland. The principal office is located at Waterloo House, 100 Pitts Bay Road, Pembroke HM08, Bermuda. From February 2019 until May 2025, the Company was a wholly-owned subsidiary of Highlands Bermuda Holdco, Ltd., an affiliate of investment funds managed by affiliates of Apollo Global Management, Inc. Immediately prior to its initial public offering (IPO) in May 2025, Highlands Bermuda Holdco, Ltd. distributed all of the Company's issued and outstanding Class A ordinary shares, par value $0.001 per share, to AP Highlands Holdings, L.P. and AP Highlands Co-Invest, L.P. (the Apollo Shareholders), and certain other individuals. The Apollo Shareholders are affiliates of investment funds managed by affiliates of Apollo. In May 2025, the Company completed its IPO of 13,250,000 of its Ordinary Shares, which began trading on the New York Stock Exchange (NYSE) on May 8, 2025. Subsequent to the IPO, underwriters exercised their option to purchase an additional 1,987,500 Ordinary Shares. The shares sold in the IPO were sold by the Apollo Shareholders, and the Company did not receive any proceeds from these sales.