Stockholders' Equity

6 Months Ended

Jun. 30, 2016

Stockholders' Equity

Stockholders' Equity

N. STOCKHOLDERS’ EQUITY

Share Repurchase Program

In January 2016, we announced that our board of directors authorized a program to repurchase up to $60.0 million in shares of our common stock. The repurchase program does not have an expiration date and may be suspended for periods or discontinued at any time. Under the program, we may purchase our stock from time to time at the discretion of management in the open market or in privately negotiated transactions. The number of shares repurchased and the timing of the purchases will depend on a number of factors, including share price, trading volume and general market conditions, along with working capital requirements, general business conditions and other factors. We may also from time to time establish a trading plan under Rule 10b5-1 of the Securities and Exchange Act of 1934 to facilitate purchases of our shares under this program. During the three and six months ended June 30, 2016, we repurchased and retired 511,744 and 831,744 shares of common stock, respectively, under this repurchase program for $12.4 million and $20.0 million, respectively, at an average purchase price of $24.30 and $24.05 per share, respectively.

Change in Stockholders’ Equity

Total stockholders’ equity decreasedby $16.1 million during the six months ended June 30, 2016. This decrease was primairily driven by $8.1 million from our net loss,  $20.0 million related to the repurchase of our securities under our stock repurchase program, partially offset by $0.8 million from the exercise of stock options,$0.8 million from the issuance of common stock under our 2015 ESPP, and $11.3 million related to equity-based compensation expense.