WINSTON-SALEM, N.C.--(BUSINESS WIRE)--Targacept, Inc. (Nasdaq: TRGT), a clinical-stage biopharmaceutical company developing a new class of drugs known as NNR Therapeutics (TM), today announced that it has completed the previously announced underwritten public offering of shares of its common stock. The completed offering included 570,000 shares purchased by the underwriters upon exercise of their overallotment option. Targacept issued and sold a total of 4,370,000 shares in the offering, resulting in gross proceeds, before deducting underwriting discounts, commissions and offering expenses, of $30.9 million.