Buffett revealed Thursday that Berkshire Hathaway ( BRKA ) has bought Amazon shares and noted that the exact amount will be disclosed in Berkshire's quarterly report to the United States Securities and Exchange Commission later this month.
"One of the friends in the office who manages money … bought some Amazon," Buffett said in an interview with CNBC. He referred to Berkshire Hathaway's top investment manager Ted Weschler or Todd Combs, according to CNBC.
Buffett is known for not being the biggest tab of tech stocks.
But he has not heard of his admiration for Amazon and Jeff Bezos, who repeatedly praised the e-commerce company and its CEO during the annual shareholder meetings in Berkshire Hathaway.
"Yes, I've been a fan, and I've been an idiot for not buying" Amazon shares, Buffett told CNBC. "But I want you to know that there are no personality changes going on."
Last year, Buffett joined with Amazon and JPMorgan Chase ( JPM ) to tackle Warren Buffett in the midst of oil bidding war
Paul R. La Monica contributed to this story.