Warren Buffett is an American investor, business leader, and philanthropist best known as the Chairman and Chief Executive Officer of Berkshire Hathaway, a multinational conglomerate holding company. Born in 1930 in Omaha, Nebraska, he began investing at an early age and built Berkshire Hathaway into one of the world’s largest corporations, with holdings in insurance, railroads, energy, consumer goods, and more. Widely regarded as one of the most successful investors of all time, he has consistently ranked among the wealthiest individuals globally. Buffett is also recognized for his philanthropy, notably through the Giving Pledge, which commits the majority of his wealth to charitable causes.