Amylin prices public offering of 13,000,000 shares of common stock

Amylin Pharmaceuticals, Inc. (Nasdaq: AMLN) today announced the pricing of an underwritten public offering of 13,000,000 shares of its common stock. The gross proceeds to Amylin from this offering are expected to be approximately $203.1 million, before deducting underwriting discounts and commissions and other estimated offering expenses payable by Amylin. The offering is expected to close on or about March 13, 2012, subject to customary closing conditions.

Amylin has also granted to the underwriter a 30-day option to purchase from it up to an additional 1,950,000 shares of its common stock. Amylin intends to use the net proceeds from this offering primarily for expenses related to its commercialization of BYDUREON™ (exenatide extended-release for injectable suspension), as well as for general corporate purposes which may include research and development expenses, capital expenditures, working capital and general administrative expenses.