4,637,000 Shares ONYX PHARMACEUTICALS, INC. COMMON STOCK, PAR VALUE $0.001 PER SHARE UNDERWRITING AGREEMENTUnderwriting Agreement • February 3rd, 2004 • Onyx Pharmaceuticals Inc • Biological products, (no disgnostic substances) • New York
Onyx Pharmaceuticals, Inc., a Delaware corporation (the “Company”), proposes to issue and sell to the several Underwriters named in Schedule I hereto (the “Underwriters”) 4,637,000 shares of its common stock, par value $0.001 per share (the “Firm Shares”). The Company also proposes to issue and sell to the several Underwriters not more than an additional 695,550 shares of its common stock, par value $0.001 per share (the “Additional Shares”), if and to the extent that you, as representatives of the Underwriters for the offering, shall have determined to exercise, on behalf of the Underwriters, the right to purchase such shares of common stock granted to the Underwriters in Section 2 hereof. The Firm Shares and the Additional Shares are hereinafter collectively referred to as the “Shares.” The shares of common stock, par value $0.001 per share, of the Company are hereinafter referred to as the “Common Stock.”
