Berkshire Hathaway has sold more stock than it bought in each of the last 11 quarters. Buffett and his team put $3.9 billion to work across 10 stocks last quarter, as they try to deploy more of ...

Keizo Asami Institute, iLIKA, Federal University of Pernambuco, Recife, Pernambuco 50670-901, Brazil Graduate Program in Biology Applied to Health, PPGBAS, Federal University of Pernambuco, Recife, ...