Berkshire, the insurance-focused conglomerate run by Buffett, will invest at least $5 billion in Goldman by buying $5 billion of perpetual preferred stock issued by the investment bank. The securities pay a dividend of 10% and are callable anytime at a 10% premium, meaning Goldman can buy them back at the higher price. Berkshire also gets warrants to purchase $5 billion of Goldman common stock with a strike price of $115 a share. Buffett can exercise these at anytime over five years. Goldman will also sell $2.5 Billion common stocks in a public offering.