Nebraska-based Berkshire Hathaway Inc. (BRK.B) is a diversified multinational conglomerate chaired and shaped by legendary investor Warren Buffett. It has a market value of $1.1 trillion, and the company is distinguished by its conservative investment approach, emphasis on long-term shareholder value, and autonomous management structure, overseeing a vast portfolio of operating businesses and equity holdings across multiple industries. Companies worth$200 billion or more are generally described as “mega- ...