4,827,300 Shares MOMENTA PHARMACEUTICALS, INC. COMMON STOCK, PAR VALUE $0.0001 PER SHARE UNDERWRITING AGREEMENTUnderwriting Agreement • July 22nd, 2005 • Momenta Pharmaceuticals Inc • Biological products, (no disgnostic substances) • New York
Momenta Pharmaceuticals, Inc., a Delaware corporation (the “Company”), proposes to issue and sell to the several Underwriters named in Schedule I hereto (the “Underwriters”) 4,827,300 shares (the “Firm Shares”) of its common stock, par value $0.0001 per share (the “Common Stock”). The Company also proposes to issue and sell to the several Underwriters not more than an additional 724,095 shares (the “Additional Shares”) of Common Stock if and to the extent that you, as Managers of 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.”
