Who Is Warren Buffett? Biography, Net Worth & Investing Philosophy

Warren Buffettis the American investor who built Berkshire Hathaway from a failing textile mill into one of the largest companies in the world — and became, in the process, the most famous practitioner ofvalue investingalive. Widely known as the "Oracle of Omaha" for his folksy wisdom and his refusal to leave his Nebraska hometown for Wall Street, Buffett spent six decades compounding capital at a pace few investors have ever matched. This biography covers who he is, how he made his money, what he actually believes about investing, the criticisms leveled at him, and where he stands in 2026 after handing the chief executive role to his chosen successor.

Introduction

Few figures in modern finance are as recognizable — or as imitated — as Warren Buffett. For most of the past half-century he served as chairman and chief executive ofBerkshire Hathaway, a holding company that owns insurers, a railroad, utilities, consumer brands, and large minority stakes in some of America's best-known public companies. His annual letters to shareholders are read far beyond the investment world, taught in business schools, and quoted by people who have never bought a single share. His annual meeting in Omaha draws tens of thousands of attendees and is only half-jokingly called "Woodstock for Capitalists."

What makes Buffett unusual is not just the scale of his wealth but the consistency and transparency of how he built it. He did not invent a technology or ride a single lucky bet; he applied a disciplined, repeatable method — buying good businesses at fair prices and holding for the long term — and explained it publicly, year after year. The result turned early investors in his partnership into multimillionaires and made Buffett one of the wealthiest people in history.

Early Life & Education

Warren Edward Buffett was born on August 30, 1930, in Omaha, Nebraska, the second of three children. His father, Howard Buffett, was a stockbroker who later served four terms as a U.S. congressman, and the household combined a respect for business with a strong streak of political and personal independence. Buffett showed an early, almost obsessive interest in numbers, money, and compounding.

As a boy he was relentlessly entrepreneurial — selling gum, soft drinks, and magazines door to door, runningpaper routes, and operating a small fleet of refurbished pinball machines placed in barber shops. By his teens he had bought farmland and was filing tax returns on his earnings. He bought his first stock at age 11 and later used the episode to teach a core lesson: he sold too early and missed a much larger gain, proof that patience matters more than timing.

Buffett studied at the Wharton School before transferring to theUniversity of Nebraska–Lincolnfor his undergraduate degree. The decisive turn came afterward atColumbia Business School, where he studied underBenjamin Graham, the investor often called the father of value investing. Graham's framework — set out in books such asSecurity AnalysisandThe Intelligent Investor— taught that a stock is a fractional ownership stake in a real business, that the market's mood swings create opportunities, and that buying with a "margin of safety" protects investors from being wrong. Buffett went to work for Graham's firm, Graham-Newman, to learn the craft directly.

Career: From Buffett Partnership to Berkshire Hathaway

In 1956, after Graham wound down his firm, Buffett returned to Omaha and launchedBuffett Partnership Ltd., pooling money from family and friends. Over roughly thirteen years he produced returns that dramatically outpaced the market. By the time he dissolved the partnership in 1969, he had built both a fortune and a reputation — and found the vehicle that would define the rest of his life.

That vehicle wasBerkshire Hathaway, a struggling New England textile manufacturer. Buffett began buying shares in the early 1960s andtook control of the company in 1965. The textile operations themselves were a losing proposition — he later described the purchase as one of his biggest mistakes — but Berkshire became the shell through which he redirected capital into far better businesses, above all insurance. Insurance gave Berkshire access to "float": premiums collected up front that could be invested before claims were paid, providing a low-cost, semi-permanent pool of capital to deploy.

For most of this journey Buffett worked alongsideCharlie Munger, the sharp-tongued lawyer who became Berkshire's vice chairman and his intellectual partner for decades. Munger pushed him beyond Graham's strict "cheap" approach toward paying up for genuinely great businesses — a shift behind some of Berkshire's best investments. Munger died in late November 2023, just short of his 100th birthday.

A handful of acquisitions and investments illustrate the strategy:

TheSee's Candiespurchase is often cited as a turning point — a modestly priced business with a beloved brand and the power to raise prices year after year without losing customers.Coca-Colabecame the textbook "wide moat" holding Buffett was happy to keep essentially forever. The largeApplestake, built from 2016, surprised those who had pegged him as a technology skeptic, though he framed it as a bet on consumer loyalty rather than technology. (Berkshire trimmed that Apple position sharply across 2024 and 2025, a point covered below.)

Net Worth & Wealth Sources

Warren Buffett'snet worthis estimated at roughly$145–150 billion as of early 2026, placing him consistently among the ten wealthiest people on the planet. The figure moves daily and varies by source, because the overwhelming majority of his fortune is tied directly to the market value of his Berkshire Hathaway shares rather than to cash or diversified holdings.

That concentration is the single most important fact about his wealth. Buffett has never taken a large salary — his Berkshire base pay has long been a token amount by CEO standards — and he has not sold shares to fund a lavish lifestyle. Instead, his fortune grew because Berkshire's share price compounded over decades. He still owns shares representing roughly30% of Berkshire's voting power and about 14% of its economic interest, even after giving away enormous quantities of stock to charity (see Philanthropy below).

Investment Philosophy

Buffett's approach is rooted invalue investingas he learned it from Benjamin Graham, then refined under Charlie Munger's influence. A few principles recur throughout his writing and decisions:

• Buy businesses, not tickers.Buffett treats a share of stock as part-ownership of a real company, to be valued by its long-term earning power rather than its short-term price chart.
• Look for "economic moats."He favors companies with durable competitive advantages — strong brands, low-cost production, network effects, or switching costs — that protect profits from competitors over the long run.
• Insist on a margin of safety.Buying well below a conservative estimate of intrinsic value provides a cushion against mistakes and bad luck.
• Think in decades, not quarters.He has written that his "favorite holding period is forever," and Berkshire's lowest-turnover positions have been held for thirty years or more.
• Stay within a "circle of competence."Buffett avoids businesses he cannot understand well enough to value, which historically kept him out of many technology and speculative bets.
• Be contrarian about emotion.His widely quoted advice — to be "fearful when others are greedy, and greedy when others are fearful" — captures his habit of buying during panics and holding through booms.

He has communicated all of this primarily through Berkshire'sannual shareholder letters, which blend financial reporting with teaching, self-deprecating humor, and candid admissions of error. Those letters, written in accessible language rather than jargon, are a large part of why Buffett became a public figure and not merely a successful money manager.

Notable Criticism & Debates

Buffett's reputation is enormous, but his record is not beyond criticism — and he has often been the first to acknowledge as much. A balanced view includes several recurring debates:

Late to technology.For years Buffett avoided technology stocks, citing his circle of competence. Critics argue this caused him to miss the largest wealth-creation event of the era. Buffett has openly admitted he was slow to appreciate companies like Amazon and Alphabet (Google) and bought Apple later than he might have. Supporters counter that staying out of businesses he didn't understand also kept Berkshire out of the dot-com crash and countless blowups.

Succession uncertainty.For much of the past two decades, the dominant question hanging over Berkshire was "what happens after Buffett?" Skeptics warned that the company's success was too dependent on one man and that no successor could replicate his judgment or his deal-making access. This concern has now been directly addressed by the 2026 leadership transition described below.

Views on derivatives.Buffett famously called derivatives "financial weapons of mass destruction" in his 2002 letter, warning of systemic risk. Critics pointed out that Berkshire itself used large derivative contracts in subsequent years, and some saw a tension between the warning and the practice. Buffett's defense was that Berkshire used such instruments selectively, on its own terms, and with full understanding of the risks — the opposite of the opaque, over-leveraged usage he criticized.

Cash drag and lagging stretches.In several recent years Berkshire underperformed the S&P 500 while accumulating a very large cash pile as Buffett waited for attractive opportunities. Critics called this a drag on returns; Buffett argued that cash and patience are features, not bugs, of a disciplined strategy — preferable to overpaying in an expensive market.

Philanthropy & Personal Life

Despite his immense wealth, Buffett has lived famously modestly — remaining in the same Omaha house he bought in the late 1950s and known for an everyday diet and frugal habits. He was married to Susan Thompson Buffett until her death in 2004 and later married Astrid Menks. He has three children — Susie, Howard, and Peter — who are active in philanthropy.

Buffett's giving is among the largest in history. In 2006 he pledged the bulk of his fortune to charity, directing the majority toward theBill & Melinda Gates Foundationalong with foundations run by his children. In 2010 he co-founded theGiving Pledgewith Bill and Melinda Gates, asking the world's wealthiest people to commit to donating most of their wealth; Buffett himself pledged to give away more than 99% of his.

By 2025 his cumulative donations of Berkshire stock had surpassed roughly$60 billionin value, with more than $40 billion going to the Gates Foundation since 2006. In mid-2025 he made another large annual gift — about $6 billion in Berkshire shares — split between the Gates Foundation and his family's foundations. Late in 2025 he signaled a shift in his plans, indicating that most of his remaining wealth would flow through his three children's charitable foundations rather than continuing primarily to the Gates Foundation.

Current Status in 2026, Succession & Legacy

The biggest change in Buffett's story is recent. In May 2025 he announced that he intended to step down as Berkshire's chief executive at the end of that year, and the board unanimously appointedGreg Abel— a long-serving Berkshire executive who oversaw its non-insurance operations — as president and CEO.Abel formally took over as CEO on January 1, 2026, while Buffett remainedchairman of the boardand Berkshire's largest shareholder.

Early signs of the transition have been closely watched. Berkshire's first earnings report under Abel showed solid operating results from its wholly owned businesses, and Abel's first annual shareholder letter was generally well received as a clear commitment to preserving Berkshire's culture and long-term philosophy. At the 2026 annual meeting in Omaha, Buffett publicly endorsed the handover, likening Abel's role to the way Tim Cook succeeded Steve Jobs at Apple. Berkshire entered the transition with a record cash position — reported in the hundreds of billions of dollars — and the company had sharply reduced its once-massive Apple stake across 2024 and 2025, redeploying capital elsewhere.

Buffett'slegacyis already secure. He showed that patient, rational, long-term investing in understandable businesses could compound into one of the great fortunes of the modern era — and he did it transparently enough that millions of ordinary investors could learn from it. He reshaped how the public thinks about brands, "moats," and the gap between price and value, and through the Giving Pledge he helped set a new expectation that extreme wealth carries an obligation to give most of it away. Whether judged as investor, teacher, or philanthropist, he stands among the most consequential figures in American business history.

For related reading, see , , , and .

Frequently Asked Questions

Who is Warren Buffett?

Warren Buffett is an American investor, born in 1930 in Omaha, Nebraska, best known for building Berkshire Hathaway into a vast holding company and for popularizing value investing. Nicknamed the "Oracle of Omaha," he led Berkshire for about six decades and is consistently ranked among the wealthiest people in the world.

What is Warren Buffett's net worth?

As of early 2026, Buffett's net worth is estimated at roughly $145–150 billion, though the figure fluctuates daily because almost all of it is held in Berkshire Hathaway stock. The exact number varies by source and date, and it would be substantially higher had he not already donated tens of billions of dollars to charity since 2006.

How did Warren Buffett make his money?

He made his money by investing. After running an investment partnership in the 1950s and 1960s, he took control of Berkshire Hathaway in 1965 and used it to acquire businesses — especially insurers, whose "float" provided cheap capital — and to buy large stakes in public companies such as Coca-Cola and, later, Apple. His wealth grew as Berkshire's share price compounded over decades.

What is Warren Buffett's investing philosophy?

Buffett practices value investing: buying shares of understandable businesses with durable competitive advantages ("moats") at prices below his estimate of their intrinsic value, then holding for the long term. He emphasizes a margin of safety, staying within a circle of competence, and resisting the crowd's emotions — being "fearful when others are greedy, and greedy when others are fearful."

Is Warren Buffett still running Berkshire Hathaway?

Not as CEO. Buffett stepped down as chief executive at the end of 2025, and Greg Abel became CEO on January 1, 2026. Buffett remains chairman of Berkshire's board and its largest shareholder, so he continues to influence the company while day-to-day leadership has passed to Abel.

How much has Warren Buffett given to charity?

By 2025, Buffett had donated more than $60 billion worth of Berkshire stock, including over $40 billion to the Bill & Melinda Gates Foundation since 2006. He co-founded the Giving Pledge in 2010 and has committed to giving away more than 99% of his wealth, increasingly channeled through his children's charitable foundations.