Howard Buffett has a gun and a badge along with his about $200 million worth of Berkshire shares.
The billionaire plans to exercise warrants obtained six years ago while the bank's shares were tumbling.
Shareholders are eager to know what Warren Buffett plans to do with Berkshire's $100 billion in cash reserves.
Active managers say the tilt to passive investing is distorting markets.
The Oracle of Omaha's public notice about seeking a bigger share in AmEx was buried in the back pages of the NY Daily News.
Warren Buffett is sitting on a record pile of cash, which has Berkshire shareholders anticipating a big move.
“He’s not wrong on everything,” billionaire Charles Munger said of Trump.
Purchases of that magnitude represent a major pickup in activity for Warren Buffett's Berkshire Hathaway.
Warren Buffett orchestrated the $55 billion merger of Heinz and Kraft Foods with this Brazilian billionaire.
Since the election, Warren Buffett has struck a more conciliatory tone toward Trump and called for unity.