This page includes Regulatory news filings supplied by issuers listed on the BSX. Please note the BSX is not responsible for the content, accuracy or completeness of announcements filed by issuers and disclaims all liability for any loss arising from reliance on information contained within issuer announcements.

Aspen – Dividend Declarations

06 February 2015

Hamilton, Bermuda – 06 February, 2015 – Aspen Insurance Holdings Limited (“Aspen” or the “Company”; Ticker: NYSE:AHL; BSX: AHL.BH) has declared a quarterly cash dividend on Aspen’s ordinary shares of $0.20 per ordinary share. The dividend is payable on March 9, 2015 to the holders of record as of the close of business on February 20, 2015.

Aspen’s Board of Directors also declared a dividend on its 7.401% Perpetual Non-Cumulative Preference Shares with a $25 liquidation preference per share (the “7.401% Perpetual Preference Shares”) of $0.462563 per 7.401% Perpetual Preference Share. The dividend is payable on April 1, 2015 to the holders of record as of the close of business on March 15, 2015.

In addition, Aspen’s Board of Directors declared a dividend on its 7.250% Perpetual Non-Cumulative Preference Shares with a $25 liquidation preference per share (the “7.250% Perpetual Preference Shares”) of $0.4531 per 7.250% Perpetual Preference Share. The dividend is payable on April 1, 2015 to the holders of record as of the close of business on March 15, 2015.

The Board of Directors also declared a dividend on its 5.95% Fixed-to-Floating Rate Perpetual Non-Cumulative Preference Shares with a $25 liquidation preference per share (the “5.95% Perpetual Preference Shares”) of $0.3719 per 5.95% Perpetual Preference Share. The dividend is payable on April 1, 2015 to the holders of record as of the close of business on March 15, 2015.

About Aspen Insurance Holdings Limited

Aspen provides reinsurance and insurance coverage to clients in various domestic and global markets through wholly-owned subsidiaries and offices in Bermuda, France, Germany, Ireland, Singapore, Switzerland, the United Kingdom and the United States. For the year ended December 31, 2013, Aspen reported $10.2 billion in total assets, $4.7 billion in gross reserves, $3.3 billion in shareholders’ equity and $2.6 billion in gross written premiums. Its operating subsidiaries have been assigned a rating of “A” (“Strong”) by Standard & Poor’s Ratings Services, an “A” (“Excellent”) by A.M. Best Company Inc. and an “A2” (“Good”) by Moody’s Investors Service, Inc.

For further information:

Please visit www.aspen.co or contact:

Investors

Kerry Calaiaro, Senior Vice President, Investor Relations, Aspen

Kerry.Calaiaro@aspen.co

+1 (646) 502 1076

Kathleen de Guzman, Vice President, Investor Relations, Aspen

Kathleen.deGuzman@aspen.co

+1 (646) 289 4912

Media

Steve Colton, Head of Communications, Aspen

Steve.Colton@aspen.co