11.

Subsequent Events

On October 8, 2013, the Company effected a 1-for-5 reverse split of its common stock. All share and per share amounts related to common stock and options included in these financial statements and notes to financial statements have been restated to reflect the reverse stock split of the Company’s common stock. The Company’s preferred stock was not subject to the reverse stock split and, accordingly, the conversion ratios of the Company’s preferred stock have been adjusted to reflect the reverse split.

As of October 11, 2013, the Company had obtained a written consent from the holders of its outstanding convertible notes in which the holders agreed to convert all principal and interest accrued thereon to common stock upon the completion of the Company’s initial public offering at a conversion price equal to the per share offering price. In addition, the Company had obtained the consent from the holders of the requisite number of preferred shares to convert to shares of the Company’s common stock upon the completion of the Company’s initial public offering.

On October 30, 2013, the Company completed its initial public offering and issued 6,720,000 shares of its common stock at an initial offering price of $10.00 per share. In addition, the Company sold an additional 1,008,000 shares of common stock directly to its underwriters when they exercised their over-allotment option in full at the initial offering price of $10.00 per share. The Company received net proceeds from the initial public offering of approximately $68.3 million, after deducting underwriting discounts and commissions of $5.4 million and expenses of $3.6 million. In connection with the initial public offering, the following events occurred subsequent to September 30, 2013:

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On October 24, 2013, 1,486,830 warrants to purchase convertible preferred stock were net exercised and were subsequently automatically converted into 297,366 shares of common stock on October 30, 2013;

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On October 30, 2013, 931,240 warrants to purchase convertible preferred stock were net exercised and were subsequently automatically converted into 186,248 shares of common stock on October 30, 2013;

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On October 30, 2013, the outstanding shares of convertible preferred stock automatically converted into an aggregate 12,120,531 shares of common stock;

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On October 30, 2013, the principal and interest outstanding under our $18.0 million in aggregate principal amount of our 8% convertible notes due December 31, 2013 converted into 1,860,363 shares of common stock at a conversion price equal to the initial public offering price of $10.00 per share;

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On October 30, 2013, 3,589,005 warrants to purchase convertible preferred stock were converted into 717,801 warrants to purchase common stock, at which time the liabilities were re-measured and reclassified to equity.

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On October 30, 2013, the certificate of incorporation was amended to increase the number of authorized shares of common stock to 150,000,000 with a par value of $0.001 per share and decrease the number of authorized preferred stock to 15,000,000 with a par value of $0.001 per share.

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On October 30, 2013, the Company’s By-Laws were amended and restated in their entirety.

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On October 30, 2013, the 2013 Omnibus Incentive Plan became effective under which 3,229,068 equity awards for common stock of the Company may be distributed.

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On October 30, 2013, the 2013 Employee Stock Purchase Plan became effective under which a maximum of 645,814 shares may be issued.