Alleghany Corporation (Alleghany) is an insurance holding company. The Company, through its subsidiary, Transatlantic Holdings, Inc. (TransRe) is engaged in the property and casualty reinsurance business. It is also engaged in the property and casualty insurance business through its subsidiary, Alleghany Insurance Holdings LLC (AIHL). AIHL’s principal insurance company subsidiaries are RSUI Group, Inc. (RSUI) and CapSpecialty, Inc. (CapSpecialty). The Company's segments include reinsurance, insurance and Alleghany Capital. The reinsurance segment consists of property and casualty reinsurance operations conducted by TransRe’s reinsurance operating subsidiaries. The insurance segment consists of property and casualty insurance operations conducted in the United States by AIHL through its insurance operating subsidiaries RSUI and CapSpecialty. The Alleghany Capital segment consists of industrial operations, non-industrial operations and corporate operations at the Alleghany Capital level.