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Equity | 12 Months Ended
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Dec. 31, 2024
Stockholders' Equity Note [Abstract] |
Equity | Note 10 – Equity Common Stock The Company’s Restated Certificate of Incorporation authorizes the Company to issue up to 200,000,000 shares of common stock with a par value of $0.001 per share. The holder of each share of common stock is entitled to one vote per share. The common shareholders are entitled to dividends whenever funds and assets are legally available and when and if declared by the Board of Directors. The Company is currently subject to restrictions on the payment of dividends (see Note 8 – Debt) and no dividends have been declared as of December 31, 2024. Preferred Stock The Company’s Restated Certificate of Incorporation authorizes the Company to issue up to 5,000,000 shares of preferred stock with a par value of $0.001 per share. As of December 31, 2024 and 2023, no shares of preferred stock were issued or outstanding. Equity Financing Programs The Company maintains two facilities that enable equity financing on an ongoing basis at the Company’s discretion, our at-the-market (ATM) offering and our common stock purchase agreement with Lincoln Park Capital Fund, LLC (Lincoln Park). In November 2021, the Company entered into a sales agreement with a financial institution, pursuant to which the Company may issue and sell, from time to time, shares of its common stock having an aggregate offering price of up to $50.0 million (the ATM Shares), subject to terms and conditions. The ATM Shares will be offered and sold by the Company pursuant to its previously filed and currently effective registration statement on Form S-3, and sales of common stock, if any, will be made at market prices by methods deemed to be an “at-the-market offering” as defined in Rule 415 promulgated under the Securities Act of 1933, as amended, including sales made directly on the NASDAQ Global Market, or any other existing trading market for our common stock. On March 7, 2022 (the LPC Effective Date), the Company entered into a purchase agreement with Lincoln Park Capital Fund, LLC (the Purchase Agreement), pursuant to which Lincoln Park has committed to purchase up to $50.0 million of the Company's common stock (the LPC Facility). Under the terms and subject to the conditions of the Purchase Agreement, the Company has the right, but not the obligation, to sell to Lincoln Park, and Lincoln Park is obligated to purchase up to $50.0 million of the Company’s common stock. Such sales of common stock by the Company, if any, will be subject to certain limitations, and may occur from time to time, at the Company’s sole discretion, over the 36-month period commencing on the LPC Effective Date. The Purchase Agreement may be terminated by the Company at any time, at its sole discretion, without any cost or penalty, by giving one business day notice to Lincoln Park to terminate the Purchase Agreement. Lincoln Park has covenanted not to cause or engage in any manner whatsoever, any direct or indirect short selling or hedging of the common stock. On the LPC Effective Date, the Company issued 184,275 shares of common stock to Lincoln Park as a commitment fee (the Initial Commitment Shares) for which the Company did not receive consideration and, upon the available amount being reduced to an amount equal to or less than $20.0 million, the Company will be required to issue 61,425 shares (the Additional Commitment Shares and together with the Initial Commitment Shares, collectively, the Commitment Shares). The Initial Commitment Shares issued were valued at $0.6 million and, together with due diligence expenses and legal fees of $0.1 million, reflect deferred offering costs of $0.7 million, were included on the balance sheet in 'Other long-term assets'. The deferred offering costs were charged against 'Additional paid-in capital' based upon proceeds from the sale of common stock under the Purchase Agreement. During the years ended December 31, 2024 and 2023, there were no deferred offering costs charged against 'Additional paid-in capital'. During the year ended December 31, 2024, the Company expensed $0.7 million of deferred offering costs to 'Other (expense) income, net' in the statements of operations as a result of changes in the probability of our ability to fully utilize the LPC Facility prior to the termination date. As of December 31, 2024, zero deferred offering costs remain. As of December 31, 2024, the Company had remaining available capacity for share issuances of up to $46.9 million under the LPC facility, subject to the restrictions and limitations of the underlying facilities. Effective February 5, 2025, the Company terminated the LPC Facility. During the year ended December 31, 2024, the Company raised approximately $0.6 million ($0.6 million after deducting underwriting discounts and commissions and offering expenses payable), in gross proceeds from the sale of 313,928 common shares at a weighted average price per share of $1.99 under the ATM facility. On April 5, 2024, the Company filed Supplement No. 1 to the ATM Prospectus Supplement dated December 22, 2021. To comply with volume limitations under applicable SEC rules and regulations, Supplement No. 1 reduced the aggregate offering price to up to $100,000 of shares in order to maximize the amount the Company could offer under the April 2024 Offering (defined below). Following the successful completion of the Company’s April 2024 Offering, the Company is no longer subject to volume limitations under applicable SEC rules and regulations that limit their availability as sources of funding. On August 7, 2024, the Company filed Supplement No. 2 to the ATM Prospectus Supplement dated December 22, 2021 to increase the aggregate offering price under the ATM facility up to $50.0 million of shares. On November 1, 2024, the Company filed a shelf registration statement on Form S-3 and entered into a new sales agreement with a financial institution, pursuant to which the Company may issue and sell, from time to time, shares of its common stock having an aggregate offering price of up to $50.0 million, subject to terms and conditions (the 2024 ATM Program). The shares of common stock offered pursuant to the 2024 ATM Program will be offered and sold by the Company pursuant to its registration statement on Form S-3 which became effective with the SEC on November 12, 2024. Sales of common stock under the 2024 ATM Program, if any, will be made at market prices by methods deemed to be an “at-the-market offering” as defined in Rule 415 promulgated under the Securities Act of 1933, as amended, including sales made directly on the NASDAQ Global Market, or any other existing trading market for our common stock. In connection with establishing the 2024 ATM Program, the Company terminated its prior $50.0 million ATM program established in November 2021, and no additional stock can be issued thereunder. As of December 31, 2024, the Company had remaining available capacity for share issuances of up to $50.0 million under the ATM facility. April 2024 Offering Summary On April 9, 2024, the Company closed an underwritten offering of common stock and a concurrent private placement which are described in further detail below. Collectively, the Company raised net proceeds of approximately $51.3 million. Underwritten Offering On April 9, 2024, the Company closed an underwritten offering (the Offering) of 17,391,832 shares of its common stock (the Common Stock). The Common Stock was issued and sold pursuant to an underwriting agreement (the Underwriting Agreement), dated April 5, 2024, by and between the Company and TD Securities (USA) LLC, William Blair & Company, L.L.C., and Canaccord Genuity LLC as representatives of the underwriters (the Underwriters), at a price to the public of $1.15 per share. The Company received net proceeds of approximately $18.2 million from the Offering after deducting underwriting discounts and commissions and estimated offering expenses payable by the Company. The Underwriting Agreement contains customary representations, warranties and agreements by the Company, customary conditions to closing, indemnification obligations of the Company and the Underwriters, including for liabilities under the Securities Act, other obligations of the parties and termination provisions. The Underwriting Agreement also includes lock up restrictions that will be in effect during the period ending 90 days subsequent to April 5, 2024. The representations, warranties, and agreements contained in the Underwriting Agreement were made only for purposes of such agreement and as of specific dates, were solely for the benefit of the parties to such agreement, and may be subject to limitations agreed upon by the contracting parties. The Offering was made pursuant to the Company’s effective Registration Statement on Form S-3 (File No. 333-261095) previously filed with the SEC on November 29, 2021 and a prospectus supplement, dated April 5, 2024 relating to the Offering. Concurrent Private Placement On April 5, 2024, the Company entered into securities purchase agreements (the Securities Purchase Agreements) with various investors, including certain members of management, certain of its directors and funds affiliated with those directors (the Investors) for the issuance and sale by the Company of an aggregate of 760,857 shares of Series A Non-Voting Convertible Preferred Stock, par value $0.001 per share (the Series A Preferred Stock) in an offering (the Concurrent Private Placement). The Preferred Stock was issued to the Investors pursuant to an exemption from the registration requirements of the Securities Act of 1933, as amended (the Securities Act) afforded by Section 4(a)(2) of the Securities Act. Pursuant to the terms of the Securities Purchase Agreements, the Company agreed to submit to its stockholders the approval of the (i) conversion of the Preferred Stock into shares of Common Stock in accordance with Nasdaq Stock Market Rules (the Conversion Proposal) and (ii) the issuance of Series A Preferred Stock to certain members of management, certain of its directors and funds affiliated with those directors (the Issuance Proposal) at its 2024 annual meeting of stockholders. The Securities Purchase Agreements include customary representations, warranties and covenants by the parties to the agreement. Pursuant to the Securities Purchase Agreements, the Investors purchased the Preferred Stock at a purchase price of $46.00 per share for an aggregate purchase price of approximately $35.0 million, net of fees of approximately $1.9 million. Registration Rights Agreement In connection with the Concurrent Private Placement, the Company also entered into a Registration Rights Agreement, dated April 5, 2024 (the Registration Rights Agreement), with the Investors, which provides that the Company will register the resale of the shares of Common Stock issuable upon conversion of the Preferred Stock. Pursuant to the Registration Rights Agreement, the Company was required to prepare and file an initial registration statement with the SEC as soon as reasonably practicable, but in no event later than April 23, 2024 (the Filing Deadline), and to use reasonable best efforts to have the registration statement declared effective within 50 days after the closing of the Concurrent Private Placement, subject to the approval of the conversion of the Private Placement Shares being received at the Company’s 2024 annual meeting of stockholders. On April 8, 2024, the Company filed a Certificate of Designations of Preferences, Rights and Limitations of the Series A Non-Voting Convertible Preferred Stock with the Secretary of State of the State of Delaware (the Certificate of Designations) in connection with the Concurrent Private Placement. The Certificate of Designations provided for the issuance of up to 760,857 shares of the Series A Preferred Stock. Following stockholder approval of the Conversion Proposal, each share of Series A Preferred Stock automatically converted into 40 shares of Common Stock, subject to certain limitations, including that a holder of Series A Preferred Stock was prohibited from converting shares of Series A Preferred Stock into shares of Common Stock if, as a result of such conversion, such holder, together with its affiliates, would beneficially own more than a specified percentage (established by the holder between 0% and 19.9%) of the total number of shares of Common Stock issued and outstanding immediately after giving effect to such conversion. On May 21, 2024, the Company held its 2024 annual meeting of stockholders in which the Conversion Proposal and Issuance Proposal were approved by the Company's stockholders. Upon approval, each share of Series A Preferred Stock automatically converted into 40 shares of Common Stock and, on May 23, 2024, the Company issued 30,434,280 shares of Common Stock in exchange for all Series A Preferred Stock. Warrants During 2018, the Company issued warrants to purchase shares of convertible preferred stock in conjunction with the sale of certain convertible preferred shares and issuance of debt. The Company issued to the lender a warrant to purchase 613,333 shares of Series G convertible preferred stock, at an exercise price of $0.75 per share, subject to adjustment upon specified dilutive issuances. The warrant was immediately exercisable upon issuance and expires on February 23, 2028. Through the effective date of the Company’s initial public offering (IPO) in October 2020, the Series G warrants were remeasured to an estimate of fair value using a Black-Scholes pricing model. As a result of the Company’s IPO, the preferred stock warrants were automatically converted to warrants to purchase 103,326 shares of common stock with a weighted average exercise price of $4.46 and were also transferred to additional paid-in capital. All common stock warrants remain outstanding as of December 31, 2024. On November 21, 2022, as consideration for the Perceptive Term Loan Facility (see Note 8 – Debt), the Company issued the Perceptive Warrant to purchase up to 5,000,000 shares of the Company's common stock, including the Initial Warrants. The per share exercise price for the Initial Warrants is equal to $1.0648, which is equal to the lower of (A) the 10-day VWAP of the Company’s common stock on the business day immediately prior to the Closing Date of the Tranche A Loan or (B) the public offering price per share of common stock of $1.15. The Initial Warrants are equity classified and were immediately exercisable upon issuance and expire on November 21, 2032. The Initial Warrants were valued at $2.9 million using the Black-Scholes option-pricing model assuming an expected term of 10 years, a volatility of 81.3%, a dividend yield of 0% and a risk-free interest rate of 3.67%. All Initial Warrants remain outstanding as of December 31, 2024. On May 10, 2023, as consideration for the First Amendment (see Note 8 – Debt), the Company agreed to issue to Perceptive a warrant to purchase up to 500,000 shares of the Company’s common stock (the First Amendment Warrants) at a per share exercise price equal to $1.6254, which is equal to the 10-day VWAP of the Company’s common stock ending on the business day immediately prior to the First Amendment Effective Date. The First Amendment Warrants are equity classified and immediately exercisable upon issuance and expire on May 10, 2033. The First Amendment Warrants were valued at $0.7 million using the Black-Scholes option-pricing model assuming an expected term of 10 years, a volatility of 78.7%, a dividend yield of 0% and a risk-free interest rate of 3.49%. All First Amendment Warrants remain outstanding as of December 31, 2024. On December 15, 2023 (the Tranche B Borrowing Date), the Company exercised its ability to draw the Tranche B loan (see Note 8 – Debt). In connection with the Tranche B draw, the Company remeasured the Tranche B Warrants through the Tranche B Borrowing Date and recorded the change in fair value through the statements of operations and, subsequently, reclassified the fair value to additional paid-in capital. The Tranche B Warrants are now equity classified and immediately exercisable upon issuance and expire on December 15, 2033. The Tranche B Warrants were valued at $1.3 million using the Black-Scholes option-pricing model assuming an expected term of 10 years, a volatility of 76.2%, a dividend yield of 0% and a risk-free interest rate of 3.91%. All Tranche B Warrants remain outstanding as of December 31, 2024.

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