Warren Buffett news: One in five Americans work past traditional retirement age, according to Pew Research. Billionaire Warren Buffett has shown just how profitable that can be, the 94-year-old Berkshire Hathaway CEO has earned 95% of his net worth after age 65, according to Barron’s.

Buffett turned 65 on August 30, 1995. At the time, his Berkshire stock was worth about $12 billion (about $25.3 billion today adjusted for inflation). In the three decades since, Berkshire’s stock has gone up nearly 30 times, and Buffett’s net worth has gone through the roof.

From $12 Billion to $141 Billion

Buffett is now worth $141 billion, according to the Bloomberg Billionaires Index, with 99% of his net worth — or $140 billion — tied to his stake in Berkshire Hathaway. He’s the 11th richest person in the world.

His net worth has grown 12 times since 1995, and he’s given away a lot. In June he made his biggest annual donation yet, giving $6 billion to five organizations: the Gates Foundation, the Susan Thompson Buffett Foundation, the Howard G. Buffett Foundation, the Sherwood Foundation, and the NoVo Foundation.

Charity and Succession Plans

Buffett has been making annual donations to these organizations since June 2006 and has given away over $60 billion. Barron’s estimates that if he hadn’t given away so much of his wealth, his net worth would be over $300 billion.

He’s been running Berkshire Hathaway for 55 years, since 1970. Earlier this year he announced he would step down, with Greg Abel, 62, vice chairman of non-insurance operations, taking over on January 1, 2026. Berkshire Hathaway’s market value is over $1 trillion.