Saturday Aug 30, 1930 to Present
Omaha, Nebraska, U.S.Warren Edward Buffett (born August 30, 1930) is an American business magnate, investor, and philanthropist, who is the chairman and CEO of Berkshire Hathaway.
In 1998 Buffett acquired General Re (Gen Re) as a subsidiary in a deal that presented difficulties—according to the Rational Walk investment website, "underwriting standards proved to be inadequate," while a "problematic derivatives book" was resolved after numerous years and a significant loss.
On December 9, 2010, Buffett, Bill Gates, and Facebook CEO Mark Zuckerberg signed a promise they called the "Gates-Buffett Giving Pledge", in which they promise to donate to charity at least half of their wealth, and invite other wealthy people to follow suit.
In December 2011, Buffett's MidAmerican Energy Holdings agreed to buy a $2 billion solar energy project under development in California and a 49 percent stake in a $1.8 billion plant in Arizona, his first investments in solar power. He already owned wind farms.