Wesley P. Wheeler, chief executive officer and president of Patheon has left the company. Peter Bigelow, president of Patheon’s North American operations, will serve as interim chief executive officer. Ramsey Frank, Patheon’s chairman said, “We want to thank Wes for his contributions to establishing Patheon as a leading provider of contract development and manufacturing services to the global pharmaceutical industry. Patheon has become a financially strong company and demons...