‘It is the one thing that always worries me about my job’ says Warren Buffett By: MarketWatch May 04, 2019 at 12:13 PM EDT Bad actors doing harm to shareholders are key concerns for one of the world’s richest and well-known investors. Read More >> Related Stocks: Berkshire Hathaway Berkshire Hathaway KBW Bank Invesco ETF Nasdaq Composite Wells Fargo