Aspen initiates search for New CFO to Succeed Richard Houghton; Julian Cusack to Serve as Interim

Aspen Insurance Holdings Limited AHL today announced that it has initiated a search for a new Chief Financial Officer to replace Richard Houghton, who will be leaving the Company effective February 29, 2012 to pursue other opportunities. Mr. Houghton will remain in his role through the Company's filing of its annual report on Form 10-K for the year ended December 31, 2011. Julian Cusack, currently Chief Risk Officer of Aspen, will assume the role of acting Chief Financial Officer pending the appointment of a successor to Mr. Houghton. Prior to assuming his current role, Mr. Cusack was the Chief Financial Officer of the Company from its inception until April 2007. Stephen Postlewhite, currently Head of Risk, will assume the role of acting Chief Risk Officer.