Warren E. Buffett (born August 30, 1930) is an American investor and business leader widely regarded for his long record of value investing and capital allocation. Raised in Omaha, Nebraska, he built his reputation by buying companies and public stocks he considered undervalued, often holding them for many years. He is one of the world’s most prominent private investors and a well-known public figure associated with personal frugality and clear, plainspoken commentary.

Career and roles

Buffett is a primary shareholder of several businesses and has served as a principal shareholder, chairman and CEO of the conglomerate Berkshire Hathaway. Over decades he transformed Berkshire from a textile firm into a diversified holding company with interests in insurance, railroads, utilities, consumer brands and sizable publicly traded positions. His annual shareholder letters are widely read for investment insight and corporate governance views.

Investment approach and notable holdings

Buffett follows a form of value investing influenced by Benjamin Graham: focus on durable businesses, understandable operations, strong management and attractive long‑term economics. He favors simplicity, predictable cash flows and a margin of safety. Over time Berkshire and Buffett have held large stakes in companies such as financial services firms, consumer brands and technology names; Berkshire also owns operating businesses including insurance, energy and rail.

Early life, education and development

Born in 1930, Buffett showed an early aptitude for money management and entrepreneurship. He studied at the University of Nebraska and later at Columbia Business School, where he learned from Benjamin Graham. He formed investment partnerships as a young man, gradually accumulating capital and experience that led to the takeover of Berkshire in the mid‑1960s and its evolution into a holding company.

Philanthropy and public profile

Buffett has long emphasized giving. He pledged to distribute the majority of his fortune to charitable causes and has made substantial donations to family foundations and public charities, including large commitments to foundations associated with other philanthropists. He helped launch the Giving Pledge initiative to encourage wealthy individuals to commit to major philanthropic gifts. His personal habits—relatively modest living and straightforward communication—have contributed to his public image.

Health and notable facts

Buffett has periodically discussed health matters publicly; in 2012 he was diagnosed with and completed treatment for prostate cancer. He is often cited for his clear investment maxims and for mentoring a generation of investors through example and writing. While his net worth has placed him among the wealthiest people globally, he is perhaps best known for his investment philosophy, long tenure at Berkshire and large philanthropic commitments. For more on his life and work see resources labeled biography and coverage of his career and fortune reports.

  • Key principles: value, patience, business understanding.
  • Notable roles: investor, Berkshire chairman and CEO, philanthropist.
  • Further reading: company filings, annual letters and reliable biographies (local histories and national profiles).