The proposed form of underwriting agreement filed as Exhibit 1 to this registration statement provides for indemnification of directors and officers of the registrant by the underwriters against certain liabilities.
Item 15. Recent Sales of Unregistered Securities
Since January 1, 2017, the registrant has sold the following securities without registration under the Securities Act of 1933:
1. Pursuant to share purchase agreements entered into between us and the other parties identified therein, on April 7, 2017, we issued 276,923 shares of our Series C Convertible Preferred Stock at $65 per share.
2. Pursuant to share purchase agreements entered into between us and the other parties identified therein, on October 31, 2017, we issued 166,924 shares of our Series C Convertible Preferred Stock at $65 per share.
3. Pursuant to share purchase agreements entered into between us and the other parties identified therein, on January 8, 2018, we issued 911,539 shares of our Series C Convertible Preferred Stock at $65 per share.
4. Pursuant to share purchase agreements entered into between us and the other parties identified therein, on February 5, 2018, we issued 232,321 shares of our Series C Convertible Preferred Stock at $65 per share.
5. Pursuant to share purchase agreements entered into between us and the other parties identified therein, in May 2018, we issued 1,999,999 shares of our Series C Convertible Preferred Stock at $65 per share.
6. Pursuant to share purchase agreements entered into between us and the other parties identified therein, in June 2018, we issued 1,681,753 shares of our Series C Convertible Preferred Stock at $65 per share.
7. Pursuant to share purchase agreements entered into between us and the other parties identified therein, in July 2018, we issued 371,549 shares of our Series C Convertible Preferred Stock at $65 per share, aside from those issued on July 3, 2018.
8. Pursuant to share purchase agreements entered into between us and the other parties identified therein, on July 3, 2018, we issued 1,115,934 shares of our Series C Convertible Preferred Stock at $65 per share, as a result of the acquisition.
9. Pursuant to share purchase agreements entered into between us and the other parties identified therein, in November 2019, we issued 430,000 shares of our Series C Convertible Preferred Stock at $75 per share as a result of an acquisition.
10. Pursuant to share purchase agreements entered into between us and the other parties identified therein, in December 2019, we issued 26,667 shares of our Series C Convertible Preferred Stock at $75 per share as a result of an acquisition.
11. Pursuant to share purchase agreements entered into between us and the other parties identified therein, between December 2019 and March 2020, we issued 798,719 shares of our Series C Convertible Preferred Stock at $75 per share.
12. Pursuant to share purchase agreements entered into between us and the other parties identified therein in May 2020, we issued 1,342,750 shares of our Series C Convertible Preferred Stock at $100 per share.
13. We granted stock options to employees and consultants under our 2006 Employee, Director and Consultant Stock Plan, covering an aggregate of 3,042,931 shares of common stock issuable upon the exercise of options outstanding as of January 31, 2020 at a weighted average exercise price of $35.84 per share.
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