Buffett still owns more than 12% of the company. Don't let this move cause you to sell -- or buy -- stock in the bank.Here's an intriguing headline: "Warren Buffett's Berkshire trims Bank of America stake for the first time since 2019 after strong rally." And another: "Warren Buffett's Berkshire Hathaway sells 34 million Bank of America shares."Buffett is arguably the best investor of the past few generations, averaging annual gains of around 20% for decades. So if his company, Berkshire Hathaway, is sheddi ...