New York – Warren Buffett is donating roughly $3.6 billion of Berkshire Hathaway Inc <BRKa.N> stock to five charities, including the Bill & Melinda Gates Foundation, the biggest contribution in Buffett’s plan to give away his fortune. Berkshire said Buffett’s 14th annual donation comprises about 16.81 million Class “B” shares of Berkshire. The donation will [...]