 Neogen Corp. shares NEOG, -0.20 soared 14 in premarket trade Tuesday, after the company confirmed a Wall Street Journal report that it is combining with 3M Corp.s MMM, -1.42 food-safety business in a deal with an enterprise value of 9.3 billion. Neogen, a food testing and animal health company, said the deal values the 3M business at about 5.3 billion. 