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Common Stock | 9 Months Ended
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Sep. 30, 2023
Common Stock |
Common Stock | 8. Common Stock ​ As of September 30, 2023, the amended and restated certificate of incorporation authorizes the Company to issue 290 million shares of common stock and 10 million shares of preferred stock. ​ Each share of common stock is entitled to one vote. Common stockholders are entitled to dividends if and when declared by the board of directors. As of September 30, 2023, no dividends on common stock had been declared. ​ In March 2020, the Company entered into an open market sale agreement (the “2020 Sales Agreement”) with Jefferies LLC (“Jefferies”) to sell shares of the Company’s common stock, from time-to-time, with aggregate gross sales proceeds of up to $50,000,000, through an at-the-market equity offering program under which Jefferies will act as its sales agent. In November 2021, the Company entered into another Sale Agreement (“2021 Sales Agreement”) with Jefferies to sell shares of its common stock from time-to-time, with aggregate gross sales proceeds of up to $40,000,000. ​ On March 28, 2023, the Company terminated both the 2020 Sales Agreement and the 2021 Sales Agreement and concurrently entered into a new open market sale agreement (the “2023 Sales Agreement”) with Jefferies to sell shares of the Company’s common stock, from time-to-time, with aggregate gross sales proceeds of up to $90,000,000, through an at-the-market equity offering program under which Jefferies will act as its sales agent. The issuance and sale of shares of common stock by the Company pursuant to the 2023 Sales Agreement are deemed an “at-the-market” offering under the Securities Act of 1933, as amended. Jefferies is entitled to compensation for its services equal to 3.0% of the gross proceeds of any shares of common stock sold through Jefferies under the 2023 Sales Agreement. ​ During the nine months ended September 30, 2023, the Company sold 2,461,903 shares of common stock under its at-the-market offering program resulting in net proceeds of $7.8 million. As of September 30, 2023, $81.9 million remained available for sale under the 2023 Sales Agreement. ​ The Company has reserved shares of common stock for issuance as follows: ​
​ | ​ | ​ | ​ | ​ | ​
​ | ​ | September 30, | ​ | December 31, | ​
​ |  | 2023 |  | 2022 |
Shares available for future option grants | ​ | 5,099,421 | ​ | 4,017,011 | ​
Outstanding options |  | 7,762,672 | ​ | 7,006,250 |
Shares reserved for employee stock purchase plan |  | 400,000 | ​ | 400,000 |
Total |  | 13,262,093 | ​ | 11,423,261 |
​

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