Stockholders' Equity

3 Months Ended

Mar. 31, 2018

Stockholders' Equity

Stockholders' Equity

(8) Stockholders’ Equity

In May 2016, the Company entered into an agreement with Cantor Fitzgerald & Co. (“Cantor”) to allow the Company to issue and sell shares of its common stock having an aggregate offering price of up to $60.0 million from time to time through Cantor, acting as agent. In November 2017, the Company filed a prospectus supplement registering the offer and sale of shares of common stock of up to an additional $75.0 million under the agreement with Cantor. During the three months ended March 31, 2018, the Company issued 4,692,024 shares of common stock under this controlled equity offering sales agreement with Cantor resulting in net proceeds of $11.7 million after deducting commission and offering expenses. At March 31, 2018, the Company had $55.5 million remaining in aggregate gross offering price available under the Cantor agreement.