ROCKVILLE, Md.--(BUSINESS WIRE)--Rexahn Pharmaceuticals, Inc. (NYSE Amex: RNN) announced today that it has completed its previously announced Registered Direct Offering of common stock and warrants. Rodman & Renshaw, LLC, a subsidiary of Rodman & Renshaw Capital Group, Inc. (NasdaqGM: RODM), acted as the exclusive placement agent for this transaction.