UPDATE 1-Merck KGaA seeks partner for immuno-oncology drug by year-end By: Reuters: Company News September 18, 2014 at 06:12 AM EDT * Pharma head Oschmann appointed deputy CEO (Adds details on drug, wraps in management changes) Read More >> Related Stocks: Astrazeneca Plc ADR Bristol-Myers Squibb Merck & Co Rogers Corp