Emdeon, a leading healthcare claims and payment processing network, raised $367 million on Tuesday by offering 23.7 million shares at the high end of the $13.50 to $15.50 range. The deal included 10% more shares than originally proposed, with selling shareholders accounting for the 2.3 million share difference. The stock is expected to begin trading Wednesday on the NYSE under the symbol "EM". Morgan Stanley acted as the lead manager on the deal.