Altimmune, Inc. (Nasdaq: ALT), a clinical-stage immunotherapeutics company, today announced the pricing of an underwritten public offering of common units and pre-funded units for a combined total of 2,400,000 units. Each common unit is being sold at a public offering price of $5.00 and consists of a share of its common stock and a warrant to purchase one share of common stock at an exercise price of $6.00. Each warrant will be exercisable immediately and will expire five years from the date of issuance. Each pre-funded unit consists of a pre-funded warrant to purchase one share of our common stock at an exercise price of $0.01 per share and a warrant. The purchase price of each Pre-funded Unit is equal to the price per common unit being sold to the public in this offering, minus $0.01. The pre-funded warrants will be immediately exercisable and may be exercised at any time until all of the pre-funded warrants are exercised in full