Transatlantic Holdings, Inc. is a holding company engaged in the reinsurance business through its wholly owned subsidiaries, Transatlantic Reinsurance Company, Trans Re Zurich and Putnam Reinsurance Company. The Company offers reinsurance capacity for a full range of property and casualty products on a treaty and facultative basis, directly and through brokers, to insurance and reinsurance companies, in both the domestic and international markets. TRHs principal lines of reinsurance include auto liability (including non-standard risks), other liability (including directors and officers liability and other professional liability), medical malpractice, ocean marine and aviation, accident and health and surety and credit in the casualty lines and fire, homeowners and auto physical damage in the property lines. Reinsurance is provided for most major lines of insurance on both excess-of-loss and pro-rata bases.