BRK.A Profile — Berkshire Hathaway Inc
Berkshire Hathaway is a holding company owning subsidiaries engaged in several business activities. Co.'s segments include: Insurance and Reinsurance Businesses, which provide insurance and reinsurance of property and casualty and life, accident and health risks; Railroad Business, which operates railroad systems in North America; Utilities and Energy Businesses, which generate, transmit, store, distribute and supply energy; Manufacturing Businesses, which include industrial products, building products and consumer products; and Service and Retailing Businesses, with service businesses providing grocery and foodservice distribution and retailing businesses including automotive operation.