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Common Stock Reserved for Future Issuance | 9 Months Ended
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Sep. 30, 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:
|  | September 30, |  | December 31,
|  | 2019 |  | 2018
Warrants for the purchase of Common Stock |  | 6,193,749 |  | 4,202,449
Options outstanding to purchase Common Stock |  | 843,183 |  | 433,389
Options available for future issuance to purchase Common Stock |  | 468,123 |  | 877,917
Shares reserved for the employee stock purchase plan |  | 112,481 |  | 76,011
Total |  | 7,617,536 |  | 5,589,766

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