Aspen Insurance Holdings Limited (“Aspen”) (NYSE:AHL) announced today that it is mailing a letter and a BLUE revocation card to shareholders in opposition to Endurance Specialty Holdings Ltd. (“Endurance”) (NYSE:ENH) solicitation of authorizations. Aspen’s Board of Directors urges shareholders to reject both of Endurance’s proposals by promptly signing, dating and returning Aspen’s BLUE revocation card and disregarding Endurance’s white authorization card. 

Information on Aspen’s response to Endurance’s unsolicited offer, including links to press releases, presentations, and other important documents and SEC filings are available on the Internet at, or on Aspen’s website at 

Click HERE for the full text of the letter to Aspen shareholders.