Ladenburg Thalmann Upgrades Optimer Pharmaceuticals (OPTR) to Buy Jan 22, 2010 08:55AM
Ladenburg Thalmann Downgrades Optimer Pharmaceuticals (OPTR) to Neutral Nov 4, 2009 12:31PM
Optimer Pharma (OPTR) Stock Slips on Numerous Analyst Downgrades May 18, 2009 02:40PM
Ladenburg Thalmann Initiates Coverage on Optimer Pharmaceuticals (OPTR) with a Buy Feb 23, 2009 08:58AM