Although abstaining from selling Bank of America (NYSE: BAC) stock during the second quarter, as revealed in his updated portfolio, Warren Buffett, CEO of Berkshire Hathaway (NYSE: BRK.A), has sold almost $7 billion worth of this stock since the end of Q2.The trend continued with Buffett’s latest sale on September 5, where he offloaded 18,746,304 BAC shares at an average price of $40.51 per share for a total profit of $759.5 million.Buffett’s sale of BAC stock. Source: SECLooking at the previous filings wit ...