Warren Buffett, the chairman and chief executive of Berkshire Hathaway, said on Wednesday that he has resigned as a trustee of the Bill and Melinda Gates Foundation, weeks after the couple announced their divorce.
Mr. Buffett, a longtime friend of Mr. Gates, had been a huge presence at the Gates Foundation: It is one of five nonprofit organizations to which he has pledged the majority of his fortune — estimated at $105.3 billion, according to Forbes — and the only one not run by a member of the Buffett family.
All told, Mr. Buffett, 90, has donated $41 billion worth of Berkshire stock to the five foundations. In Wednesday’s announcement, he said he has donated an additional $4.1 billion.
“For years I have been a trustee — an inactive trustee at that — of only one recipient of my funds, the Bill and Melinda Gates Foundation (BMG),” Mr. Buffett said in a statement. “I am now resigning from that post, just as I have done at all corporate boards other than Berkshire’s.”
Mr. Buffett did not give a reason for his action. The foundation’s reputation for global philanthropy has lately been overshadowed by reports of Mr. Gates’s questionable conduct in work-related settings. The New York Times has reported that on at least a few occasions, Mr. Gates pursued women who worked for him at Microsoft and at the foundation, according to people with direct knowledge of his overtures.