ROCKVILLE, Md., July 2, 2012 (GLOBE NEWSWIRE) -- Nabi Biopharmaceuticals (Nasdaq:NABI) (the “Company”) today announced that it is commencing a “modified Dutch auction” tender offer for up to $23,000,000 of its common stock at a price per share not less than $1.58 and not greater than $1.72. The tender offer will expire at 12:00 midnight, at the end of the day, New York City time, on Monday, July 30, 2012, unless extended by the Company. Tenders of shares must be made on or prior to the expiration of the tender offer and may be withdrawn at any time prior to the expiration of the tender offer, in each case, in accordance with the procedures described in the tender offer materials.