Stockholders' Equity

3 Months Ended

Mar. 31, 2015

Stockholders' Equity

Stockholders' Equity

N.STOCKHOLDERS’ EQUITY

March 2015 Public Offering of Common Stock

In March 2015, we sold approximately 4.6 million shares of our common stock at a public offering price of $44.00 per share, resulting in gross proceeds to us of approximately $201.2 million, prior to underwriting discounts of $12.1 million and $0.2 million in commissions and other offering expenses.

Change in Stockholder’s Equity

Total stockholder’s equity increased by $211.2 million during the three months ended March 31, 2015. This increase was primarily driven by $188.9 million in net proceeds related to the March 2015 public offering of common stock, as discussed above, $12.9 million from our net income, $6.7 million from the exercise of stock options and $2.7 million related to equity-based compensation expense.