Alleghany Corporation owns and manages its subsidiaries and investments in the property and casualty reinsurance and insurance business. The Company operates through two segments: reinsurance and insurance. The Company’s reinsurance segment consists of the reinsurance operations of its subsidiary Transatlantic Holdings, Inc. and its reinsurance operating subsidiaries. The Company, through its wholly owned subsidiary Alleghany Insurance Holdings LLC (AIHL) and its subsidiaries, provides property and casualty insurance services. AIHL’s insurance operations are principally conducted by its subsidiaries, RSUI Group, Inc., CapSpecialty, Inc. and Pacific Compensation Corporation. AIHL Re LLC, a wholly owned subsidiary of the Company, provides captive reinsurance to its insurance operating subsidiaries and affiliates. The Company manages, sources, executes and monitors certain private capital investments primarily through its wholly owned subsidiary, Alleghany Capital Corporation (ACC).