BRKB
Berkshire Hathaway is a multinational conglomerate holding company based in Omaha, Nebraska, with diverse subsidiaries spanning insurance, energy, manufacturing, rail transportation, and consumer products. The group stewards long‑term investments and owns operating businesses across multiple industries, maintaining a history of shareholder communications and annual reporting. Its operations include insurance underwriting and investment activities, with notable entities like Berkshire Hathaway Energy and BNSF Railway contributing to a broad portfolio. The company is recognized for its investor letters and annual reports detailing performance and governance.