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Net Loss Per Share | 6 Months Ended
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Jun. 30, 2014
Earnings Per Share [Abstract] |
Net Loss Per Share | 7. Net Loss Per Share Basic loss per common share is determined by dividing loss attributable to common stockholders by the weighted-average number of common shares outstanding during the period, without consideration of common stock equivalents. Diluted loss per share is computed by dividing the loss attributable to common stockholders by the weighted-average number of common share equivalents outstanding for the period. The treasury stock method is used to determine the dilutive effect of the Company’s stock option grants and the if-converted method is used to determine the dilutive effect of the Company’s preferred stock. Prior to the Company’s initial public offering, net loss per share was calculated under the two-class method under which all earnings (distributed and undistributed) are allocated to each class of common stock and participating securities based on their respective rights to receive dividends. In the event that the Board of Directors declared a dividend payable in cash or other property on the then-outstanding shares of common stock, the holders of the Series A-1, A-2, B, C, D, and D-2 convertible preferred stock would be entitled to receive the amount of dividends per share of preferred stock that would be payable on the largest number of whole shares of common stock into which each share of preferred stock could then be converted. Therefore, the Series A-1, A-2, B, C, D and D-2 were participating securities. All of the outstanding shares of Series A-1, A-2, B, C, D, and D-2 convertible preferred stock converted to common stock upon the consummation of the Company’s IPO. Basic and diluted loss per common share is computed as follows:
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2014 |  |  | 2013 |  |  | 2014 |  |  | 2013 |
Net loss |  | $ | (12,259 | ) |  | $ | (294 | ) |  | $ | (15,367 | ) |  | $ | (3,660 | )
Less: undistributed earnings allocated to participating securities |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Net loss allocable to common shares |  | $ | (12,259 | ) |  | $ | (294 | ) |  | $ | (15,367 | ) |  | $ | (3,660 | )
Basic weighted average common shares outstanding |  |  | 27,651,297 |  |  |  | 1,219,884 |  |  |  | 26,960,664 |  |  |  | 1,184,507 |
Basic loss per common share |  | $ | (0.44 | ) |  | $ | (0.24 | ) |  | $ | (0.57 | ) |  | $ | (3.00 | )
Net loss |  | $ | (12,259 | ) |  | $ | (294 | ) |  | $ | (15,367 | ) |  | $ | (3,660 | )
Less: undistributed earnings allocated to participating securities and other add-backs to net loss |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Net loss allocable to common shares |  | $ | (12,259 | ) |  | $ | (294 | ) |  | $ | (15,367 | ) |  | $ | (3,660 | )
Basic weighted average common shares outstanding |  |  | 27,651,297 |  |  |  | 1,219,884 |  |  |  | 26,960,664 |  |  |  | 1,184,507 |
Effect of dilutive securities |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Diluted weighted average common shares outstanding |  |  | 27,651,297 |  |  |  | 1,219,884 |  |  |  | 26,960,664 |  |  |  | 1,184,507 |
Diluted loss per common share |  | $ | (0.44 | ) |  | $ | (0.24 | ) |  | $ | (0.57 | ) |  | $ | (3.00 | )
In October 2013, the Company issued 5,750,000 shares of common stock in connection with its IPO and 16,955,790 shares of common stock in connection with the automatic conversion of its convertible preferred stock upon the closing of the IPO. In February 2014, the Company issued 2,250,000 shares of common stock in a follow-on offering. The issuance of these shares resulted in a significant increase in the Company’s weighted average shares outstanding for the three and six months ended June 30, 2014 when compared to the comparable prior year period and is expected to continue to impact the year-over-year comparability of the Company’s income (loss) per share calculations for the remainder of 2014. The following common stock equivalents were excluded from the calculation of diluted loss per share allocable to common stockholders because their inclusion would have been anti-dilutive:
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
|  | 2014 |  |  | 2013 |  |  | 2014 |  |  | 2013 |
Series A-1 Preferred Stock |  |  | — |  |  |  | 2,156,114 |  |  |  | — |  |  |  | 2,156,114 |
Series A-2 Preferred Stock |  |  | — |  |  |  | 392,274 |  |  |  | — |  |  |  | 392,274 |
Series B Preferred Stock |  |  | — |  |  |  | 4,336,037 |  |  |  | — |  |  |  | 4,336,037 |
Series C Preferred Stock |  |  | — |  |  |  | 5,909,906 |  |  |  | — |  |  |  | 5,909,906 |
Series D Preferred Stock |  |  | — |  |  |  | 769,468 |  |  |  | — |  |  |  | 769,468 |
Series D-2 Preferred Stock |  |  | — |  |  |  | 3,391,991 |  |  |  | — |  |  |  | 3,391,991 |
Warrants to purchase Series D-2 Preferred Stock |  |  | — |  |  |  | 180,784 |  |  |  | — |  |  |  | 180,784 |
Stock Options |  |  | 2,270,771 |  |  |  | 2,441,142 |  |  |  | 2,376,747 |  |  |  | 2,763,365 |

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