9.	Stockholders’ Equity

Public Offering – In June 2017, the Company issued 1,500,000 shares of its common stock at $5.00 per share through a public offering (the “Public Offering”). The Company incurred $1,388,615 in issuance costs from the Public Offering and issued 75,000 warrants valued at $55,475 to the underwriters (as discussed in Note 10).

In July 2017, as permitted by the underwriting agreement entered into in connection with the Public Offering, the underwriters exercised their option to purchase an additional 225,000 shares of common stock at $5.00 per share. The Company incurred $176,771 in issuance costs from this issuance. In connection with this exercise, certain affiliates of the underwriters were granted additional warrants to purchase 11,250 shares of common stock in the aggregate valued at $8,321 (as discussed in Note 10).

In connection with and prior to the Public Offering, the Company issued 1,801,670 shares of its common stock upon conversion of all outstanding preferred stock and 516,667 shares of its common stock upon conversion of the previously outstanding convertible debentures.

Securities Purchase Agreement – In April 2019, the Company issued 847,750 shares of its common stock at $1.10 per share through a Securities Purchase Agreement (the “Purchase Agreement”) with certain institutional investors and accredited investors. Concurrently with the sale of the common stock, pursuant to the Purchase Agreement, the Company also sold common stock purchase warrants to such investors to purchase up to an aggregate of 847,750 shares of common stock. The Company incurred $379,816 in issuance costs from the offering and issued 84,775 warrants to the underwriters. The warrants are further discussed in Note 10.

Decrease in Authorized Shares – On June 5, 2019, at the Company’s annual meeting of stockholders, the stockholders approved an amendment to the Company’s amended and restated certificate of incorporation to decrease the number of authorized shares of common stock from 300,000,000 to 25,000,000 shares. Following the meeting, on June 5, 2019, the Company filed a certificate of amendment to the amended and restated certificate of incorporation to decrease its authorized shares of common stock accordingly. There was no change to the number of authorized shares of preferred stock.