PEMBROKE, Bermuda, November 6, 2010 - Allied World Assurance Company Holdings, Ltd (NYSE: AWH) today reported that the company has entered into an agreement to repurchase the remainder of its securities held by certain GS Capital Partners and other investment funds, which are affiliates of The Goldman Sachs Group, Inc. and founding shareholders of Allied World. These securities consist of 3,159,793 common shares and warrants to purchase an additional 1,500,000 common shares. The aggregate repurchase price for these securities will be US$222.6 million, of which US$185.4 million will be for the repurchase of the common shares and US$37.2 million will be for the repurchase of the warrants. The repurchase price per common share is based on and reflects a 0.5% discount from the volume-weighted average trading price of the company's common shares on November 5, 2010. The repurchase price per common share underlying the warrants is equal to the volume-weighted average trading price of the company's common shares on November 5, 2010, less the exercise price for such warrants, which is US$34.20 per share, plus US$0.01 per share. The repurchase of the common shares represents approximately 7.5% of the total common shares outstanding as of September 30, 2010.