The stock trading symbol BRK/B belongs to Berkshire Hathaway Inc., according to NASDAQ.com. Berkshire Hathaway Inc. is a holding company with a diverse number of subsidiaries, mainly within the insurance industry, as of 2015.
The national headquarters of Berkshire Hathaway Inc. is located in Omaha, Nebraska, although domiciled in Delaware, notes NASDAQ.com. Mega billionaire Warren Buffet, the third-richest man in the world as of June 2015, is the corporation’s CEO, notes Forbes. Stock in Berkshire Hathaway is highly prized and is the most expensive stock of any U.S. company, worth more than $200,000 per share in 2014. Berkshire Hathaway posted a net income of $19.5 billion and $182 billion in revenue in 2013.