Warren Buffett

Warren Buffett commands around $145 billion at age 95 through his 15% stake in Berkshire Hathaway, a $900 billion conglomerate spanning GEICO insurance, BNSF Railway, Berkshire Hathaway Energy, and a $360 billion equities portfolio anchored by $170 billion in Apple stock. Buffett began investing at age 11 and compounded capital at roughly 20% annually for over 60 years, one of the most sustained investment track records in history. Despite donating over $55 billion to the Gates Foundation and other charities since 2006, his net worth has continued growing through Berkshire's retained earnings and portfolio appreciation.