| Number of Warrants | Exercise Price | Expiration Date | |||||||
|
Issued to co-placement agents in connection with previous convertible note financings |
18,250 | $ | 7.84 |
10/29/2014 | |||||
| Issued in connection with 2009 private placement | 503,034 | 3.4375 | 10/29/2014 | ||||||
| Issued in connection with IPO | 4,043,569 | 3.4375 | 3/24/2015 | ||||||
|
Issued to IPO underwriters that, if exercised, would result in the issuance of an additional 4,812 shares of common stock and warrants to purchase an additional 2,406 shares of common stock |
4,812 | 3.90 |
3/24/2015 | ||||||
|
Issued in connection with September 20, 2012 private placement of convertible notes |
2,125,000 | 0.40 |
9/20/2017 | ||||||
|
Issued to placement agent in connection with September 20, 2012 private placement of convertible notes |
15,420 | 0.40 |
9/20/2017 | ||||||
|
Issued in connection with November 13, 2012 private placement of convertible notes |
375,000 | 0.40 |
11/13/2017 | ||||||
|
Issued to placement agent in connection with November 13, 2012 private placement of convertible notes |
85,167 | 0.40 |
11/13/2017 | ||||||
|
Issued in connection with February 2013 private placement of Series A convertible preferred stock |
400,000 | 1.50 |
2/19/2018 | ||||||
| Issued in connection with license agreement amendment | 125,000 | 1.50 | 4/11/2018 | ||||||
|
Issued in connection with July 2013 private placement of Series B convertible preferred stock |
227,273 | 1.50 |
7/30/2018 | ||||||
|
Issued in connection with May 2013 private placement of convertible notes, which funded in July 2013 |
1,000,000 | 1.00 |
5/30/2019 | ||||||
|
Issued in connection with October 2013 private placement of Series C-1 and C-2 convertible preferred stock |
1,500,000 | 1.25 |
10/22/2019 | ||||||
| Total warrants outstanding at December 31, 2013 | 10,422,525 | ||||||||