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Stockholders' equity | 12 Months Ended
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Dec. 31, 2022
Stockholders' equity |
Stockholders' equity | 9. Stockholders’ equity The total number of shares of all classes of capital stock that the Company is authorized to issue is 440,000,000 shares, consisting of 400,000,000 shares of common stock, par value $0.001 per share and 40,000,000 shares of preferred stock, par value $0.001 per share. Reverse Stock Split See Note 12 – Subsequent events for further information. Conversion of Series A Preferred Stock ​ As discussed in Note 1 and Note 3, the Company issued to the shareholders of Atrin 2,949,630 shares of Series A Preferred Stock as partial consideration of the Atrin acquisition. Each share of Series A Preferred Stock is convertible into 10 shares of common stock. The Company held a stockholders’ meeting on July 28, 2022 where approval of the conversion of the Series A Preferred Stock into shares of the Company’s common stock in accordance with Nasdaq Listing Rule 5635(a) was received. As of December 31, 2022, a total of 2,893,403 shares of Series A Preferred Stock was converted into 1,446,701 shares of common stock. As of December 31, 2022, a total of 56,227 shares of Series A Preferred Stock remained outstanding. ​ Common Stock The holders of common stock are entitled to one vote for each share of common stock. In the event of any voluntary or involuntary liquidation, dissolution or winding up of the Company, after the payment or provision for payment of all debts and liabilities of the Company, the holders of common stock shall be entitled to share in the remaining assets of the Company available for distribution, if any. Shelf Registration Statement On November 12, 2020, the Company filed a universal shelf registration statement with the SEC for the issuance of common stock, preferred stock, warrants, rights, debt securities and units up to an aggregate of $350.0 million. On November 30, 2020, the Shelf Registration Statement was declared effective by the SEC. The universal shelf registration statement includes an at-the-market (“ATM”) offering program and the Company filed a Prospectus Supplement dated September 2, 2022, for the sale of up to $14,744,728 of shares of the Company’s common stock pursuant to its ATM offering program. The Company agreed to pay a commission of 3% of the gross proceeds of any common stock sold in connection with the ATM offering program. During the year ended December 31, 2022, the Company issued and sold 38,481 shares of common stock under the ATM offering program resulting in net proceeds to the Company of approximately $0.7 million. During the year ended December 31, 2021, the Company issued and sold 18,338 shares of common stock under the ATM offering program resulting in net proceeds to the Company of approximately $1.5 million. The Company did not sell any common stock under the ATM offering program during the year ended December 31, 2020.

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