BETHESDA, Md.--(BUSINESS WIRE)--REGENERX BIOPHARMACEUTICALS, INC. (NYSE Amex:RGN) announced today that it has entered into a securities purchase agreement with new institutional investors for the sale of 4,512,195 shares of its common stock in a registered direct offering at $0.82 per share. In addition, warrants to purchase 2,256,098 shares of common stock will be issued to the investors. The warrants are immediately exercisable, have a term of 5 years and an exercise price of $1.12 per share. Gross proceeds of the offering, before deducting placement agent fees and other estimated offering expenses payable by RegeneRx, are expected to be approximately $3.7 million. These securities are being offered through a prospectus supplement pursuant to the Company’s effective shelf registration statement.