REGENERX BIOPHARMACEUTICALS, INC. (AMEX:RGN) announced today that it has entered into agreements (the “Purchase Agreements”) with two affiliates of the Company’s largest shareholder, Sigma-Tau Group (the “Investors”), with respect to the sale of an aggregate of 2,068,964 shares of the Company’s common stock at a price per share of $1.45 (the “Shares”), for gross proceeds of $3,000,000 (the “Offering”). In connection with the Offering, the Company also issued warrants to purchase an additional 745,104 shares of its common stock with an exercise price of $1.74 per share (the “Warrants”). There were no discounts or brokerage fees associated with the Offering.