Aspen declares dividends on ordinary shares, Perpetual PIERS and Perpetual Preference Shares

  Aspen declares dividends on ordinary shares, Perpetual PIERS and Perpetual
  Preference Shares

Business Wire

HAMILTON, Bermuda -- February 7, 2013

The Board of Directors of Aspen Insurance Holdings Limited (“Aspen”)
(NYSE:AHL) has declared a quarterly cash dividend on Aspen’s ordinary shares
of $0.17 per ordinary share. The dividend is payable on March 7, 2013 to the
holders of record as of the close of trading on February 21, 2013.

Aspen’s Board of Directors also declared a cash dividend on its 5.625%
Perpetual Preferred Income Equity Replacement Securities (“Perpetual PIERS”)
of $0.703125 per Perpetual PIERS. The dividend is payable on April 1, 2013 to
the holders of record as of the close of business on March 15, 2013.

In addition, Aspen’s Board of Directors declared a dividend on the 7.401%
Perpetual Non-Cumulative Preference Shares (the “7.401% Perpetual Preference
Shares”) of $0.462563 per 7.401% Perpetual Preference Share. The dividend is
payable on April 1, 2013 to the holders of record as of the close of business
on March 15, 2013.

Aspen’s Board of Directors also declared a dividend on the 7.250% Perpetual
Non-Cumulative Preference Shares (the “7.250% Perpetual Preference Shares”) of
$0.4531 per 7.250% Perpetual Preference Share. The dividend is payable on
April 1, 2013 to the holders of record as of the close of business on March
15, 2013.

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, 2011, Aspen reported
$9.5 billion in total assets, $4.5 billion in gross reserves, $3.2 billion in
shareholders’ equity and $2.2 billion in gross written premiums. Its operating
subsidiaries have been assigned a rating of “A” (“Strong”) by Standard &
Poor’s, an “A” (“Excellent”) by A.M. Best and an “A2” (“Good”) by Moody’s
Investors Service.

Application of the Safe Harbor of the Private Securities Litigation Reform Act
of 1995

This press release may contain written “forward-looking statements” within the
meaning of the U.S. federal securities laws. These statements are made
pursuant to the safe harbor provisions of the Private Securities Litigation
Reform Act of 1995. Forward-looking statements include all statements that do
not relate solely to historical or current facts, and can be identified by the
use of words such as “expect,” “intend,” “plan,” “believe,” “project,”
“anticipate,” “seek,” “will,” “estimate,” “may,” “continue,” and similar
expressions of a future or forward-looking nature.

All forward-looking statements rely on a number of assumptions, estimates and
data concerning future results and events and are subject to a number of
uncertainties and other factors, many of which are outside Aspen’s control
that could cause actual results to differ materially from such statements,
including changes in market conditions and their impact on our business. For a
detailed description of uncertainties and other factors that could impact the
forward-looking statements in this press release, please see the “Risk
Factors” section in Aspen’s Annual Report on Form 10-K for the year ended
December 31, 2011, filed with the U.S. Securities and Exchange Commission on
February 28, 2012. Aspen undertakes no obligation to update or revise publicly
any forward-looking statements, whether as a result of new information, future
events or otherwise.

For further information

Please visit www.aspen.co.

Contact:

Investors
Kerry Calaiaro
Senior Vice President, Investor Relations, Aspen
+1-646-502-1076
Kerry.Calaiaro@aspen.co
Media
International – Citigate Dewe Rogerson
Caroline Merrell or Jos Bieneman
+44 20 7638 9571
caroline.merrell@citigatedr.co.uk
jos.bieneman@citigatedr.co.uk
North America – Abernathy MacGregor
Allyson Vento
+1-212-371-5999
amv@abmac.com