Subsequent Events

3 Months Ended

Mar. 31, 2018

Subsequent Events [Abstract]

Subsequent Events

NOTE 10—SUBSEQUENT EVENTS

Proceeds from the Kite agreement

In April 2018, the Kite agreement became effective when the waiting periods under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended and other customary closing conditions were satisfied. Following the effective date, the Company received a $150 million upfront payment from Kite.

Proceeds from public offering of common stock, net of issuance costs

In April 2018, Sangamo completed an underwritten public offering of its common stock, in which the Company sold an aggregate of 14.2 million shares of its common stock at a public offering price of $16.25 per share. The net proceeds to Sangamo from the sale of shares in this offering, after deducting underwriting discounts and commissions and other estimated offering expenses, were approximately $215.9 million.