ZUG, Switzerland, May 14, 2013 /PRNewswire/ -- Allied World Assurance Company Holdings, AG (NYSE: AWH) announced today that John Patin has been appointed Senior Vice President, Investments. Mr. Patin will be based in Allied World's New York office and will report directly to John Gauthier, Chief Investment Officer for the holding company and President of Allied World Financial Services. Mr. Gauthier commented, "We are very excited that John has joined Allied World's investment team. John's in-depth experience as an investment manager and almost 20 years in the financial industry make him exceptionally qualified to oversee the operations of our growing investment portfolio. I am confident that John will be a tremendous asset as Allied World continues to expand." As Senior Vice President, Investments, Mr. Patin will be responsible for the oversight of Allied World's investment portfolio, including monitoring investment strategy, trading activity and performance results among the company's investment advisors, and will play a key role in the company's tactical asset allocation process. Prior to joining Allied World, Mr. Patin was Vice President of Investments at Alterra Capital. While at Alterra, Mr. Patin was responsible for oversight and management of the firm's investment operations. He also served as a member of Alterra's Operational and Risk Committee and Management Leadership Team. Mr. Patin was previously a founding member of Alstra Capital Management and served as Director of Research. He began his career working at Morgan Stanley/Graystone Wealth Management as an investment analyst. Mr. Patin received a B.S. in Economics and International Relations from the University of Wisconsin-Madison. About Allied World Allied World Assurance Company Holdings, AG, through its subsidiaries and brand known as Allied World, is a global provider of innovative property, casualty and specialty insurance and reinsurance solutions. Allied World offers superior client service through a global network of offices and branches. All of Allied World's rated insurance and reinsurance subsidiaries are rated A by A.M. Best Company, A by Standard & Poor's, and A2 by Moody's, and our Lloyd's Syndicate 2232 is rated A+ by Standard & Poor's and Fitch.