Berkshire Hathaway Inc. is an American holding company, whose conglomerate includes over 80 companies with activities spanning a wide range of business areas, including insurance and reinsurance, rail freight, energy supply, financial services, manufacturing, and wholesale and retail. The chairman is the major US investor and multi-billionaire Warren Buffett.
Berkshire Hathaway stock (symbol: BRK-B) underwent one stock split.The stock split occurred on January 21st, 2010.One BRK-B share bought prior to January 21st, 2010 would equal to 50 BRK-B shares today.