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Reserved for Future Issuance | 3 Months Ended
--- | ---
Mar. 31, 2022
Reserved for Future Issuance |
Reserved for Future Issuance | 9. Reserved for Future Issuance The Company has reserved for future issuance the following shares of common stock: ​
​ | ​ | ​ | ​ | ​
​ |  | March 31, | ​ | December 31,
​ |  | 2022 |  | 2021
Series X Preferred Stock | ​ | 5,242,501 | ​ | 5,242,501
Warrants for the purchase of common stock |  | 1,530,176 |  | 1,530,380
Options outstanding to purchase common stock |  | 1,962,650 |  | 1,346,733
Options available for future issuance to purchase common stock | ​ | 1,332,716 | ​ | 1,633,736
Shares reserved for the employee stock purchase plan |  | 36,982 | ​ | 30,904
Total |  | 10,105,025 |  | 9,784,254
​

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