The shares of Common Shares being offered by the Selling Stockholders are those issuable to the Selling Stockholders, upon exercise of the warrants. For additional information
regarding the issuances of those shares of common stock and the warrants, see "Summary - Private Placement of Common Shares and Warrants" above. We are registering the
Common Shares in order to permit the Selling Stockholders to offer the shares for resale from time to time. Except for the ownership of Common Shares and the Warrants, the Selling
Stockholders have not had any material relationship with us within the past three years.
The table below lists the Selling Stockholders and other information regarding the beneficial ownership of the Common Shares by each of the Selling Stockholders. The second column
lists the number of Common Shares beneficially owned by each Selling Stockholder, based on its ownership of Common Shares and the Warrants, as of January 31, 2019, assuming exercise
of the Warrants held by the Selling Stockholders on that date, without regard to any limitations on exercises.
The third column lists the Common Shares being offered by this prospectus by the Selling Stockholders.
In accordance with the terms of the Registration Rights Agreement, this prospectus generally covers the resale of the maximum number of Warrant Shares, determined as if the
outstanding Warrants were exercised in full as of the trading day immediately preceding the date this registration statement was initially filed with the SEC, each as of the trading day
immediately preceding the applicable date of determination and all subject to adjustment as provided in the Registration Rights Agreement, without regard to any limitations on the exercise of
the Warrants and until the earlier to occur of (I) the date the Selling Stockholder can sell all Warrant Shares pursuant to Rule 144 without restriction or limitation and without the requirement to
be in compliance with Rule 144(c)(1) and (II) January 24, 2020, this registration statement registers 15,963,034 Common Shares, which is the maximum number of Common Shares issuable
pursuant to the Series A Warrants and the Series B Warrants. The fourth column assumes the sale of all of the shares offered by the Selling Stockholders pursuant to this prospectus.
Under the terms of the Warrants, a Selling Stockholder may not exercise the Warrants to the extent such exercise would cause such Selling Stockholder, together with its affiliates, to
beneficially own a number of shares of common stock which would exceed 4.99% or 9.99% of our then outstanding common stock following such exercise, excluding for purposes of such
determination common stock issuable upon exercise of the Warrants which have not been exercised. The number of shares in the second column does not reflect this limitation. The Selling
Stockholders may sell all, some or none of their Warrant Shares in this offering. See "Plan of Distribution."