Report: Berkshire Hathaway Files to Boost Wells Fargo Stake

Berkshire Hathaway Inc. (NYSE:BRK.B), which increased its Wells Fargo & Co. (NYSE:WFC) stake to about 10% in the first quarter, is seeking regulatory approval to buy more shares, according to reports from Bloomberg News and CNBC.

In a filing with the Federal Reserve, Berkshire said it has no "specific transaction or dollar value in mind," Bloomberg reported.