BRK-B - Berkshire Hathaway Inc

Berkshire Hathaway Inc. is a diversified holding company that primarily engages in a variety of business activities through its subsidiaries. The company's most significant ventures are its insurance and reinsurance operations, encompassing property and casualty insurances, life and health risks across the globe, along with a freight rail transportation network and utility and energy generation businesses. Berkshire's decentralized management structure allows its subsidiaries to operate independently while senior management oversees capital allocation and governance issues.

In addition to its major business units, Berkshire Hathaway owns a range of other companies engaged in manufacturing, retailing, and various services, such as food distribution, aviation training, and real estate brokerage. Its diverse portfolio of businesses includes notable names like GEICO, BNSF Railway, and several utility companies. By maintaining a vast and varied range of operations, Berkshire Hathaway positions itself to capitalize on opportunities across multiple sectors while also managing overall risk effectively.