Chad Brand submits: Things have not been great lately for Warren Buffett and Berkshire Hathaway (BRK.A) shareholders. BRK stock has dropped more than 20% since December and large Buffett holdings in the financial services area such as American Express (AXP) , Wells Fargo (WFC) , Moody's (MCO) , and U.S. Bancorp (USB) are hurting his equity portfolio. Buffett has also taken some heat for publicly bashing the use of derivatives, but privately writing billions in credit default swaps. Despite the recent headwinds, you may have noticed that Buffett is still hitting some home runs. Just this year three Buffett investments have received takeover offers, all at significant premiums of 50% to 80%. What is amazing to me has been the prices offered for some of these companies. For instance, Mars is paying 32 times 2008 earnings for Wrigley (WWY) . Dow Chemical (DOW) just offered a staggering 11.5 times EBITDA for chemical company Rohm and Haas (ROH) . Complete Story » ...