Hot Stocks: Are the Best Years Behind Warren Buffett and Berkshire Hathaway?

The mood this weekend at Berkshire Hathaway Inc.'s (NYSE: BRK.A , BRK.B ) annual shareholder meeting could be less festive than usual, darkened by a laundry list of concerns that includes mediocre returns and who eventually will succeed iconic Chief Executive Officer Warren Buffett. Analysts also expect shareholders to question an ethical lapse this year that resulted in the resignation of top executive David Sokol on March 29. In January Sokol made a $10 million investment in Lubrizol Corporation (NYSE: LZ ) -- shortly before recommending to Buffett that Berkshire acquire the company. When Berkshire announced on March 14 that it would indeed acquire Lubrizol for $9 billion, Sokol pocketed a $3 million profit.