Stockholders' Equity

9 Months Ended

Sep. 30, 2017

Equity [Abstract]

Stockholders' Equity

Stockholders’ Equity

On January 19, 2017, the Company filed a shelf registration statement on Form S-3 under which the Company may, from time to time, sell securities up to a total dollar amount of $100 million, and selling stockholders may sell, from time to time, up to 20 million of shares of common stock (“2017 Shelf Registration”). The 2017 Shelf Registration was declared effective by the SEC on February 6, 2017. 

On April 26, 2017, the Company entered into an underwriting agreement to sell up to 1,150,000 shares of its common stock at $16.50 per share in a public offering (including shares subject to the underwriters’ option to purchase additional shares). The Company sold 1,150,000 shares in the offering with aggregate net proceeds to the Company of $17.4 million, net of underwriting discounts and commissions and offering costs of $1.6 million. Selling stockholders party to the underwriting agreement also sold an aggregate of 9,200,000 shares of common stock in the offering (including shares subject to the underwriters' option to purchase additional shares). The Company did not receive any proceeds from the shares sold by the selling stockholders. The offering closed on May 2, 2017.