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STOCKHOLDERS' EQUITY | 12 Months Ended
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Dec. 31, 2022
STOCKHOLDERS' EQUITY |
STOCKHOLDERS' EQUITY | (6) STOCKHOLDERS’ EQUITY Under the Company’s Amended and Restated Certificates of Incorporation dated August 3, 2020, the Company had a total of 94,052,154 shares of capital stock authorized for issuance, consisting of 50,000,000 shares of common stock, par value of $0.0001 per share, and 44,052,154 shares of convertible preferred stock, par value of $0.0001 per share. Shares of authorized convertible preferred stock were designated as 4,000,000 shares of Series Seed redeemable convertible preferred stock and 40,052,154 shares of Series A redeemable convertible preferred stock. Following the Reverse Stock Split, the Company filed a Second Amended and Restated Certificate of Incorporation, which provided for 150,000,000 authorized shares of common stock with a par value of $0.0001 per share and 10,000,000 authorized shares of undesignated preferred stock with a par value of $0.0001 per share, effective upon completion of the Company’s IPO. (a) Redeemable Convertible Preferred Stock In August 2018, the Company sold to RA Capital Health Care Fund, L.P. an aggregate of 4,000,000 shares of Series Seed redeemable preferred stock at a purchase price of $1.00 per share, for net proceeds of $4.0 million. On August 5, 2020, the Company entered into the Stock Purchase Agreement. The Company’s initial closing of its Series A redeemable convertible preferred stock occurred on this date. The Company issued 3,468,536 shares of Series A redeemable convertible preferred shares for gross proceeds of $6.6 million at a price per share of $1.893. In addition to the cash proceeds, 3,020,998 shares of Series A redeemable convertible preferred stock were issued in connection with the conversion of the 2019 Notes and the 2020 Notes. The Stock Purchase Agreement contained provisions that potentially obligate the Company to sell, outside of its control, an additional 33,562,620 shares of Series A redeemable convertible preferred stock at $1.893 per share for expected gross proceeds of $63.5 million, upon the occurrence of three subsequent Milestone Closings or earlier, at the option of any holder of the Series A redeemable convertible preferred stock. If the defined milestones were not achieved prior to the Company’s initial public offering, the holders had the right to purchase these shares prior to the completion of the initial public offering. If the shares were not purchased prior to the completion of the initial public offering, then this right to purchase these shares would have automatically expired. On February 1, 2021, upon the completion of the First Milestone Closing, the Company sold 4,224,274 shares of Series A redeemable convertible preferred stock at the Series A Original Issue Price for aggregate gross proceeds of $8.0 million. On June 4, 2021, upon the completion of the Second Milestone Closing and the Third Milestone Closing, the Company sold 29,338,346 shares of Series A redeemable convertible preferred stock at the Series A Original Issue Price for aggregate gross proceeds of $55.5 million. Immediately prior to the closing of the Company’s IPO on July 2, 2021, all outstanding shares of the Company’s redeemable convertible preferred stock converted into 14,182,854 shares of the Company’s common stock. (b) Common Stock In August 2018, the Company issued 241,467 shares of common stock to RA Capital Healthcare Fund, L.P. at a price of $0.0012 per share. On July 2, 2021, in conjunction with the Company’s IPO, the Company issued 9,984,463 shares of its common stock and all outstanding shares of the Company’s redeemable convertible preferred stock were converted into 14,182,854 shares of the Company’s common stock. The holders of the common stock are entitled to one vote for each share of common stock held at all meetings of stockholders. As of December 31, 2022, the Company had reserved the following shares of common stock for future issuance:
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​ |  | December 31, 2022 |
Common stock options granted and outstanding |  | 4,110,219 | ​
Shares reserved for issuance under the 2021 Plan |  | 1,077,557 | ​
Reserved for vesting of outstanding restricted stock units | ​ | 28,881 | ​
Reserved for future ESPP issuances |  | 216,131 | ​
Total |  | 5,432,788 | ​
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