Berkshire-Hathaway Buying? Warren Buffett's Berkshire Hathaway Inc. (NYSE: BRK.A, NYSE: BRK.B ) has been a long-time investor in Bank of America. Buffett first invested in the firm's preferred stock in 2011. However, he recently suggested that he would be inclined to swap that position for regular BAC stock in the reasonably likely event that it raises its dividend from the current 30 cents to 44 cents or greater. At that level, the common stock would pay a greater dividend than his preferred stock position.