FILE PHOTO: A shareholder takes a selfie with a picture of Warren Buffett at the Berkshire Hathaway Inc annual meeting, the largest in corporate America, in its hometown of Omaha, Nebraska, U.S., May 4, 2018. REUTERS/Rick Wilking
FILE PHOTO: A shareholder takes a selfie with a picture of Warren Buffett at the Berkshire Hathaway Inc annual meeting, the largest in corporate America, in its hometown of Omaha, Nebraska, U.S., May 4, 2018. REUTERS/Rick Wilking