Stockholders' Equity

6 Months Ended

Jun. 30, 2024

Equity [Abstract]

Stockholders' Equity

Note 8. Stockholders’ Equity

In July 2021, the Company filed a shelf registration statement on Form S-3 with the SEC (the “2021 Registration Statement”) (File No. 333-258333), which upon being declared effective in August 2021, allows the Company to offer up to $250.0 million of securities from time to time in one or more public offerings, inclusive of up to $75.0 million of shares of the Company’s common stock which the Company may sell, subject to certain limitations, pursuant to a sales agreement dated July 30, 2021 with Cantor Fitzgerald & Co. (the “2021 Sales Agreement”).

Registered Direct Offerings

February 2023 Financing

On February 3, 2023, the Company entered into a securities purchase agreement with two institutional investors relating to the purchase and sale of an aggregate of (i) 1,700,000 shares of its common stock, par value $0.0001 per share, (ii) pre-funded warrants to purchase 300,000 shares of common stock, and (iii) accompanying common warrants, to purchase an aggregate of 2,000,000 shares of Common Stock, in a registered direct offering (the "February Offering"). The issuance date of the common stock, the pre-funded warrants and the accompanying common warrants was February 8, 2023. The aggregate net proceeds to the Company from the February Offering were approximately $8.8 million after deducting $1.2 million in placement agent fees and other offering expenses, which were allocated to warrant liabilities and included in loss on issuance of warrants on the statement of operations for the year ended December 31, 2023.

The pre-funded warrants were exercisable immediately following the closing date of the February Offering and have an unlimited term and an initial exercise price of $0.00001 per share. The common warrants were immediately exercisable and have a five-year term and an initial exercise price of $5.00 per share, which was lowered to $4.89 per share as a result of an anti-dilution provision in the common warrants issued in the February Offering that was triggered by the July Offering (as defined below) and then lowered to $0.51 that was triggered by the sale of our common stock in the open market in November 2023. The combined offering price was $5.00 per share and accompanying common warrant, or in the case of pre-funded warrants, $4.99999 per pre-funded warrant and accompanying common warrant. A holder (together with its affiliates) may not exercise any portion of a pre-funded warrant or common warrant to the extent that the holder would own more than 4.99% (or, at the election of the holder 9.99%) of the Company’s outstanding common stock immediately after exercise.

The Company accounts for the pre-funded warrants and the common warrants as current liabilities based upon the guidance of ASC 480 and ASC 815. The Company evaluated the common and pre-funded warrants under ASC 815-40, Derivatives and Hedging—Contracts in Entity’s Own Equity (“ASC 815-40”) and concluded that they do not meet the criteria to be classified in stockholders’ equity. Specifically, the exercise of the pre-funded warrants could be settled in cash upon the occurrence of a tender offer or exchange that involves 50% or more of the Company’s common stock. Because a change of 50% or more of the Company’s common stock may not result in a change in control of the Company, the Company believes that the scope exception related to the occurrence of a fundamental transaction in ASC 815-40 is not met. The common warrants have the same characteristics as the pre-funded warrants related to the occurrence of a fundamental transaction, therefore the common warrants are also precluded from equity classification. In addition, the holder of the common warrants is permitted to receive the highest volume weighted average price ("VWAP") from the date of announcement of the fundamental transaction through the date the holder provides notice of repurchase, as a way to protect the holder against reductions in the stock price in a fundamental transaction, while allowing the holder to keep the benefits of an upside, which precludes the common warrants from being considered indexed to the Company’s stock. Since the common and pre-funded warrants meet the definition of derivatives under ASC 815, the Company recorded these warrants as current liabilities on the balance sheets at the estimated fair value, with subsequent changes in their respective estimated fair values recognized in the statements of operations and comprehensive loss at each reporting date.

Estimating fair values of liability-classified financial instruments requires the development of estimates that may, and are likely to, change over the duration of the instrument with related changes in internal and external market factors. In addition, option-based techniques are highly volatile and sensitive to changes in the trading market price of the Company’s common stock. Because liability-classified financial instruments are initially and subsequently carried at fair value, the Company’s financial results will reflect the volatility in these estimate and assumption changes. Changes in estimated fair value are recognized as a component of other income (expense) in the statements of operations.

At the date of issuance, the Company valued the common warrants using a Monte-Carlo valuation model due to the presence of an alternative cashless settlement feature in the financing agreement that provides the warrant holders with an alternative settlement feature to receive a fixed percentage of the shares underlying the warrants for no consideration. Because this feature allows for the warrant holders to use an alternative mechanism to exercise their warrants in a manner that would yield different values, a Monte-Carlo valuation model was determined to be appropriate. The Monte-Carlo valuation resulted in an estimated fair value of the common warrants at issuance of $10.3 million. The pre-funded warrants were valued using the Black-Scholes option valuation model which is a common valuation method that is generally used for valuing warrants that are for the exercise of a fixed number of shares at a fixed exercise price per share. The Black-Scholes method was determined to be appropriate for the pre-funded warrants given the lack of alternative mechanisms to settle the warrants in a manner that would yield different values, such as an alternative cashless

settlement feature. The Black-Scholes valuation resulted in an estimated fair value of the pre-funded warrants at issuance of $1.7 million.

Since the estimated fair value of the warrants at issuance was greater than the gross proceeds of $10.0 million received, the Company recorded approximately $2.0 million (i.e., the difference of the estimated fair values of the warrants and the gross proceeds received) as a loss on issuance of warrants on the statements of operations at issuance.

In September 2023, 1,400,000 shares of the common warrants were exercised in connection with the alternative cashless exercise of the warrants and the Company issued 924,000 shares to the holder. The Company recorded a gain of $3.4 million resulting from the exercise of the warrants in the accompanying statements of operations for the year ended December 31, 2023 and recorded $2.8 million in additional-paid-in capital upon the issuance of the shares on the balance sheets as of December 31, 2023.

In November 2023, 300,000 shares of the pre-funded warrants were exercised in connection with the cashless exercise of the warrants and the Company issued 300,000 shares to the holder. The Company recorded a gain of $561,000 resulting from the exercise of the pre-funded warrants in the accompanying statements of operations for the year ended December 31, 2023 and recorded $186,000 in additional-paid-in capital upon the issuance of the shares on the balance sheets as of December 31, 2023.

As of June 30, 2024 and December 31, 2023, common warrants to purchase 600,000 shares of the Company's common stock were outstanding with an exercise price of $0.51 per share. At June 30, 2024, the Company updated the estimated fair value of the outstanding common warrants using a Monte-Carlo valuation model resulting in an estimated fair value of $714,000, an increase of $402,000 for these common warrants compared to the estimated fair value at December 31, 2023.

As of June 30, 2024 and December 31, 2023, there were no pre-funded warrants outstanding.

The loss of $42,000 in common warrants and the loss of $892,000 in common warrants and pre-funded warrants resulting from the change in the estimated fair value of the liabilities for such warrants were recorded as a change in the estimated fair value of warrant liabilities in the accompanying statements of operations and comprehensive loss for the three months ended June 30, 2024 and 2023, respectively.

The loss of $402,000 in common warrants and the gain of $1.6 million in common warrants and pre-funded warrants resulting from the change in the estimated fair value of the liabilities for such warrants was recorded as a change in the estimated fair value of warrant liabilities in the accompanying statements of operations and comprehensive loss for the six months ended June 30, 2024 and 2023, respectively.

The common warrant liability will be adjusted to estimated fair value at each balance sheet date until the warrants are settled. Changes in the estimated fair value of the warrant liabilities are recognized as a component of other income (expense), net in the statements of operations and comprehensive loss.

July 2023 Financing

On July 19, 2023, the Company entered into a securities purchase agreement with several institutional investors relating to the purchase and sale of an aggregate of (i) 2,991,027 shares of its common stock, par value $0.0001 per share, and (ii) accompanying common warrants to purchase an aggregate of 2,991,027 shares of common stock, in a registered direct offering (the “July Offering”). The issuance date of the common stock and the accompanying common warrants was July 21, 2023. The aggregate net proceeds to the Company from the July Offering were approximately $13.9 million after deducting $1.1 million in placement agent fees and other offering expenses.

The common warrants were immediately exercisable and have a five-year term and an initial exercise price of $4.89 per share. The combined offering price was $5.015 per share and accompanying common warrant. A holder (together with its affiliates) may not exercise any portion of the common warrants to the extent that the holder would own more than 4.99% (or, at the election of the holder 9.99%) of the Company’s outstanding common stock immediately after exercise.

The common stock and common warrants are separate freestanding instruments. The estimated fair value of the common stock issued in the July Offering as of the date of issuance (i.e., July 21, 2023) was $9.1 million, which was the number of shares of 2,991,027 multiplied by the price per share as of the date of issuance of $3.05 per share. The common stock issued in the July Offering was classified as equity on the Company’s balance sheets. The Company allocated the offering expenses related to the July 2023 offering of $1.1 million based on the relative fair values of common stock and common warrants issued. The Company recognized an expense for the amount allocated to the common warrants of $427,000 (included within other expense, net) upon the closing of the July Offering in the year ended December 31, 2023. The Company recorded the amount allocated to the common stock of $673,000 as a reduction in additional paid-in capital on its balance sheets as of December 31, 2023.

The Company accounted for the common warrants issued in the July Offering as current liabilities based upon the guidance of ASC 815. The Company evaluated the common warrants under ASC 815-40, Derivatives and Hedging—Contracts in Entity’s Own Equity (“ASC 815-40”) and concluded that they do not meet the criteria to be classified in stockholders’ equity. Upon a fundamental transaction, holders of the common warrants are permitted to settle warrants for a value determined using the Black Scholes formula

that incorporates a leveraged common stock price. Specifically, for purposes of the calculation, the stock price is determined as the higher of the VWAP measured over the period from the date of announcement of the fundamental transaction through the date the holder provides notice of repurchase, and the value received by common stockholders in such fundamental transaction. This in effect protects the holder against reductions in the stock price that may result from a fundamental transaction, while allowing the holder to keep the benefits of an upside. This feature precludes the common warrants from being considered indexed to the Company’s stock.

Since the common warrants meet the definition of derivatives under ASC 815, the Company recorded these warrants as current liabilities on the balance sheets at the estimated fair value, with subsequent changes in their respective estimated fair values recognized in the statements of operations and comprehensive loss at each reporting date.

Estimating fair values of liability-classified financial instruments requires the development of estimates that may, and are likely to, change over the duration of the instrument with related changes in internal and external market factors. In addition, option-based techniques are highly volatile and sensitive to changes in the trading market price of the Company’s common stock. Because liability-classified financial instruments are initially and subsequently carried at fair value, the Company’s financial results will reflect the volatility in these estimate and assumption changes. Changes in estimated fair value are recognized as a component of other income (expense) in the statements of operations.

The Company valued the common warrants issued in the July Offering using the Black-Scholes option valuation model. The Black-Scholes method was determined to be appropriate given the lack of alternative mechanisms to settle the warrants in a manner that would yield different values, such as an alternative cashless settlement feature. The estimated fair value of these warrants as of the issuance date and as of December 31, 2023 was $5.8 million and $912,000, respectively.

As of June 30, 2024 and December 31, 2023, none of the warrants issued in the July Offering have been exercised. Common warrants to purchase 2,991,027 shares of the Company's common stock were outstanding with an exercise price of $4.89 per share. At June 30, 2024, the Company updated the estimated fair value of the outstanding common warrants using the Black-Scholes option valuation model resulting in an estimated fair value of $2.3 million, an increase of $1.4 million for these common warrants compared to the estimated fair value at December 31, 2023. The loss of $36,000 and $1.4 million resulting from the change in the estimated fair value of the liabilities for the warrants was recorded as a change in the estimated fair value of warrant liabilities in the accompanying statements of operations and comprehensive loss for the three and six months ended June 30, 2024, respectively.

The common warrant liability will be adjusted to estimated fair value at each balance sheet date until the warrants are settled. Changes in the estimated fair value of the warrant liabilities are recognized as a component of other income (expense), net in the statements of operations and comprehensive loss.

The pre-funded warrants and the common warrants issued in the February Offering and the July Offering in 2023 are participating securities which, by definition, entitle the holders thereof to participate in dividends and other distributions of assets by the Company to its holders of common shares as though the holder then held common shares.

ATM Financings

During the three months ended June 30, 2024, there were no sales of the Company's common stock in the open market. During the six months ended June 30, 2024, the Company raised net proceeds (net of commissions) of approximately $648,000 from the sale of 702,090 shares of the Company’s common stock in the open market at a weighted average price of $0.94 per share pursuant to the 2021 Registration Statement and the 2021 Sales Agreement.

During the three and six months ended June 30, 2023, there were no sales of the Company's common stock in the open market.

As of August 9, 2024, the Company had up to $222.7 million of the Company’s securities available for sale under the 2021 Registration Statement, of which $72.7 million of the Company’s common stock are available pursuant to the 2021 Sales Agreement.