3,100,000 Shares SANGAMO BIOSCIENCES, INC. Common Stock PURCHASE AGREEMENTPurchase Agreement • June 16th, 2006 • Sangamo Biosciences Inc • Biological products, (no disgnostic substances) • New York
Sangamo BioSciences, Inc., a Delaware corporation (the “Company”), proposes, subject to the terms and conditions contained herein, to issue and sell to you an aggregate of 3,100,000 shares of the Company’s common stock, $0.01 par value per share (the “Common Stock”). The aggregate of 3,100,000 shares so proposed to be sold is hereinafter referred to as the “Firm Shares”. The Company also proposes to sell to you, upon the terms and conditions set forth in Section 1 hereof, up to an additional 465,000 shares of Common Stock (the “Option Shares”). The Firm Shares and the Option Shares are hereinafter collectively referred to as the “Shares”. The Shares are described more fully in the Registration Statement (as defined below). This is to confirm the agreement between the Company and you concerning the offering, issuance and sale of the Shares.
