PURCHASE AGREEMENTPurchase Agreement • February 15th, 2006 • Alexza Pharmaceuticals Inc. • Pharmaceutical preparations • New York
Contract Type FiledFebruary 15th, 2006 Company Industry JurisdictionPIPER JAFFRAY & CO. PACIFIC GROWTH EQUITIES, LLC RBC CAPITAL MARKETS CORPORATION JMP SECURITIES LLC As Representatives of the several Underwriters named in Schedule I hereto c/o Piper Jaffray & Co. 800 Nicollet Mall Minneapolis, Minnesota 55402