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Stockholders' Equity | 12 Months Ended
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Dec. 31, 2024
Equity [Abstract] |
Stockholders' Equity | 12. Stockholders’ Equity Common Stock Total common stock authorized to be issued as of December 31, 2024 was 1,000,000,000 shares with a par value of $0.0001 per share. At December 31, 2024 and 2023, there were 20,156,535 and 3,851,448 shares outstanding, respectively. On February 1, 2022, we filed a shelf registration statement on Form S-3 for sale of securities for proceeds in the amount of up to $200 million (File No. 333-262461) (the “Original Registration Statement”). The Original Registration Statement was declared effective February 9, 2022. On November 1, 2024, we filed a registration statement on Form S-3 pursuant to Rule 462(b) of the Securities Act (the “462(b) Registration Statement”) which increased the aggregate amount of securities we may offer under the Original Registration Statement by a proposed additional aggregate offering price of approximately $12.4 million, which represents 20% of the maximum aggregate offering price of unsold securities under the Original Registration Statement. Sales of shares of our common stock described below were made pursuant to the aforementioned registration statements. On January 31, 2022, we entered into an At Market Issuance Sales Agreement with H.C. Wainwright & Co., LLC (“Wainwright”), pursuant to which we could offer and sell, from time to time, shares of our common stock, par value $0.0001 per share, for aggregate gross proceeds of up to $100 million, through or to Wainwright, as agent or principal. During 2023, we sold 368,707 shares of our common stock under our sales agreement with Wainwright for aggregate gross cash proceeds of $7,393. Transaction costs were $217. We terminated our agreement with Wainwright effective June 3, 2024. On August 22, 2023, we entered into a common stock purchase agreement with Lincoln Park Capital Fund, LLC (“Lincoln Park”), which provided that, upon the terms and subject to the conditions and limitations set forth therein, we had the right, but not the obligation, to sell to Lincoln Park up to $30 million in value of shares of our common stock from time to time over the 24-month term of the purchase agreement. During 2023, we sold 164,106 shares of our common stock, including certain commitment shares issued to Lincoln Park in connection with the transaction, for aggregate gross cash proceeds of $978. Transaction costs were $97. We did not sell any shares of our common stock to Lincoln Park, during 2024. On October 24, 2024, we terminated the common stock purchase agreement with Lincoln Park effective October 25, 2024. On December 11, 2023, we consummated a registered public offering of an aggregate of 664,307 shares of our common stock and pre-funded warrants to purchase up to 269,027 shares of our common stock pursuant to a securities purchase agreement dated December 7, 2023. The gross proceeds from the offering, before deducting the placement agent's fees and other offering expenses payable by the Company, were approximately $2,800. Transaction costs were approximately $389. The holders of pre-funded warrants exercised their rights to purchase 269,027 shares of common stock in December 2023. In a series of offerings during the first quarter of 2024, we sold an aggregate of 2,696,000 shares of our common stock and issued pre-funded warrants to purchase up to 974,000 shares of our common stock. The aggregate gross proceeds from the offerings were $22.6 million. Aggregate transaction costs, including placement agent fees, were approximately $1.9 million. The holders of the pre-funded warrants exercised their rights to purchase all 974,000 shares of our common stock. On June 4, 2024, we entered into an Equity Distribution Agreement with Canaccord Genuity LLC (“Canaccord”), as representative of certain agents, pursuant to which we could offer and sell, from time to time, shares of our common stock, par value $0.0001 per share, for aggregate gross proceeds of up to $120 million, through the agents. Additionally, on November 1, 2024, we entered into an Amended and Restated Equity Distribution Agreement with Canaccord, as representative of certain agents, pursuant to which we increased the aggregate amount of shares of our common stock that we may sell under our at-the-market facility to an aggregate offering price of approximately $171.5 million. During 2024, we sold an aggregate of 12,025,688 shares of our common stock under our Sales Agreement with Wainwright and Equity Distribution Agreement with Canaccord for aggregate gross cash proceeds of $104.5 million. Transaction costs were $2.9 million. Stock Repurchase Plan On January 5, 2023, our board of directors authorized and approved a stock repurchase program for the repurchase of outstanding shares of our common stock with an aggregate value of up to $5,000. The authorization permits us to repurchase shares of our common stock from time-to-time through open market repurchases at prevailing market prices, in accordance with federal securities laws. The stock repurchase plan is expected to be completed over the next twelve (12) months and may be amended or terminated at any time, in the sole discretion of the board. The exact means, number and timing of stock repurchases depend on market conditions, applicable legal requirements and other factors, and have been funded through the liquidation of our bitcoin holdings. During 2023, we repurchased 10,130 shares of our common stock at an aggregate repurchase price of $502. Dividends Dividends are paid on a when-and-if-declared basis. We did not declare any dividends during 2024 or 2023.

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