10.Common Stock

The following transactions occurred during the three months ended March 31, 2019:



January 2019 Public Offering

On January 25, 2019, the Company closed an underwritten public offering of 895,834 shares of common stock and warrants to purchase up to 895,886 shares of common stock, resulting in gross proceeds to the Company of approximately $8,600,000.  The common stock and warrants were sold in units, consisting of a share of common stock and a warrant to purchase a share of common stock, at a price of $9.60 per unit, with an exercise price for the warrants of $9.60 per share.  The warrants were immediately exercisable and will remain exercisable until January 25, 2024.  The warrants issued are classified as equity instruments.  The closing costs of this offering were $1,046,172 in underwriter’s and other professional fees that are recorded as a reduction in the gross proceeds of the offering.



Restricted Stock Units

During the three months ended March 31, 2019, the Company issued 464 shares resulting from the vesting of restricted stock units (“RSUs”).