Common Stock Reserved for Future Issuance

3 Months Ended

Mar. 31, 2019

Common Stock Reserved for Future Issuance

Common Stock Reserved for Future Issuance

8.  Common Stock Reserved for Future Issuance

The Company has reserved for future issuance the following shares of Common Stock:

	March 31,	December 31,
	2019	2018
Warrants for the purchase of Common Stock	6,201,949	4,202,449
Options outstanding to purchase Common Stock	758,304	433,389
Options reserved to purchase Common Stock	553,014	877,917
Shares reserved for the employee stock purchase plan	112,481	76,011
Total	7,625,748	5,589,766