Warren Buffett — CEO, Berkshire Hathaway

**Warren Edward Buffett** is the Chairman and CEO of **Berkshire Hathaway**, the conglomerate holding company with a market cap exceeding $900 billion, roughly $300 billion in cash, and wholly-owned subsidiaries including GEICO, BNSF Railway, Berkshire Hathaway Energy, See's Candies, and Dairy Queen. He is widely considered the most successful investor in history, having compounded Berkshire's book value at approximately 20% per year for over six decades.