Warren Buffett’s charitable giving tops $51 billion
By Jonathan Stempel (Reuters) -Warren Buffett has donated another $4.64 billion of Berkshire Hathaway stock to five charities, boosting his total giving since 2006 to more than $51 billion. The annual donation made on Wednesday is the 92-year-old Buffett’s largest, and consisted of about 13.7 million of Berkshire’s Class B shares. Buffett is donating 10.45…