OREXIGEN THERAPEUTICS, INC. (a Delaware corporation) [•] Shares of Common Stock PURCHASE AGREEMENTPurchase Agreement • January 14th, 2008 • Orexigen Therapeutics, Inc. • Pharmaceutical preparations • New York
Contract Type FiledJanuary 14th, 2008 Company Industry JurisdictionMERRILL LYNCH & CO. Merrill Lynch, Pierce, Fenner & Smith Incorporated as Representative of the several Underwriters 4 World Financial Center New York, New York 10080