On February 5, 2009, Allied World Assurance Company Holdings, Ltd issued a press release reporting its fourth quarter and year-end results for 2008 and the availability of its fourth quarter and year-end 2008 financial supplement and investment supplement. The press release, financial supplement and investment supplement are furnished herewith as Exhibits 99.1, 99.2 and 99.3, respectively. The information hereunder is not deemed to be "filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), is not otherwise subject to the liabilities of that section and is not incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

(d) Exhibits

Exhibit
Number                                    Description
99.1           Press release, dated February 5, 2009, reporting fourth quarter
               and year-end results for 2008.
99.2           Fourth Quarter and Year-End 2008 Financial Supplement.
99.3           Investment Supplement.