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Common Stock | 3 Months Ended
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Mar. 31, 2024
Equity [Abstract] |
Common Stock | 9. Common Stock Common Stock Common shares are voting and dividends may be paid when, as and if declared by the board of directors. Common Stock Reserved The Company has reserved the following shares of common stock for future issuance as of:
|  | MARCH 31, 2024 |  |  | DECEMBER 31, 2023 |
Stock options outstanding |  |  | 5,112,673 |  |  |  | 5,666,621 |
Unvested restricted stock |  |  | 2,306,889 |  |  |  | 2,526,432 |
Shares available for future grant under stock option plan |  |  | 2,042,216 |  |  |  | 252,053 |
Warrants |  |  | 7,507,708 |  |  |  | 7,507,708 |
|  |  | 16,969,486 |  |  |  | 15,952,814 |
Shelf Registration and At-the-Market Offerings On August 5, 2022, the Company filed the Shelf with the SEC, which covers the offering, issuance, and sale by us of up to an aggregate of $200.0 million of our common stock, preferred stock, debt securities, warrants and/or units of any combination thereof. We simultaneously entered into a sales agreement with Jefferies LLC, as sales agent, to provide for the issuance and sale by us of up to $75.0 million of our common stock from time to time in “at-the-market” offerings under the Shelf. The Shelf was declared effective by the SEC on August 12, 2022. As of March 31, 2024, the Company has sold and issued 109,485 shares of common stock under the ATM Program, with total net proceeds of $0.2 million. Subsequent to March 31, 2024, no additional sales have been made under the ATM Program.

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