In addition, management evaluated the Series A Preferred Stock after the modifications and determined that they should be reclassified to mezzanine equity under ASC 480-10-S99 as a result of the Company not having sufficient authorized and unissued shares to settle a conversion to Common Stock.

Warrants

In September 2021, the Company entered into transactions with holders of its outstanding Series A Preferred Stock to issue PIPE Warrants to purchase the Company's common stock. At such time, the PIPE Warrants contained certain anti-dilution provisions. In November 2022, the Company amended and restated the agreement under which PIPE Warrant holders agreed to waive such provisions in exchange for certain concessions from the Company. The Company’s outstanding Series A Warrants have anti-dilution provisions that would increase the number of shares issuable upon exercise and lower the exercise price of the Series A Warrants if the Company issues equity securities at a price less than the current exercise price of the Series A Warrants at the time of such issuance. Pursuant to the Waiver, investors agreed to a floor of $21,000.00 ($0.14 prior to the Reverse Stock Splits) with respect to the anti-dilution adjustments in the warrants and extend the term of the warrants until March 28, 2029.

The PIPE Warrants were valued immediately before and immediately after the modifications to calculate the $10.6 million incremental value of the modified PIPE Warrants. The Company considered this incremental value to be a deemed dividend that reduced income available to common shareholders in calculating earnings per share.

Management evaluated the warrants after the modifications made in February 2024 and determined that they should be reclassified from equity to liability based on the guidance in ASC 815-40 and the Company failing to have enough authorized and unissued shares available to settle an exercise of the contract. In accordance with ASC 815-40, the carrying value of the warrants were adjusted to fair value through an adjustment in stockholders’ equity immediately prior to the reclassification. Subsequent to the reclassification, management remeasured the warrant liability to fair value and recorded the change in fair value to other income (expense) in the condensed consolidated statement of operations. 

On September 9, 2024, the Company entered into a Securities Exchange Agreement with the holders of the Series A Preferred Stock and warrants to cancel and retire the Series A Preferred Stock and warrants in exchange for shares of Series C Convertible Preferred Stock of the Company (the “Series C Preferred Stock”).

Series C Preferred Stock

On September 9, 2024, the Company’s board of directors authorized the issuance of up to 35,000 shares of Series C Preferred Stock. As a result of the exchanged noted above, the Company issued 28,041 shares of Series C Preferred Stock. Each share of Series C Preferred Stock is convertible, at any time after issuance and at the option of the holder subject to certain beneficial ownership limitations, into a number of shares of common stock determined by dividing the Stated Value of such share by the Conversion Price. The Stated Value per share of Series C Preferred Stock is $1,000.00 and the Conversion Price per share of Series C Preferred Stock is $4,500.00 ($22.50 prior to the April Reverse Stock Split). The Series C Preferred Stock does not contain any of the price resets set forth in the Series A Preferred Stock, except in the case of stock splits, recapitalizations and similar transactions by the Company. During 2024, all 28,041 shares of Series C Preferred Stock were converted into 6,229 shares of common stock (1,246,262 prior to the April Reverse Stock Split). As of June 30, 2025 and December 31, 2024, there were no shares of Series C Preferred Stock outstanding.

Registered Direct Offering

On February 5, 2024, the Company entered into a securities purchase agreement with certain institutional investors for the sale by the Company of 18 shares (2,702,703 prior to the Reverse Stock Splits) of the Company’s common stock in a registered direct offering. The purchasers in this offering purchased, and the Company sold, the shares at a purchase price per share of $55,500.00 ($0.37 prior to the Reverse Stock Splits). The sale closed on February 7, 2024 for aggregate gross proceeds of $1.0 million, before deducting the placement agent fees and related offering expenses.

At the Market Offering

On October 21, 2024, the Company entered into an At the Market (“ATM”) Offering Agreement (the “Sales Agreement”) with Roth Capital Partners, LLC (the “Sales Agent”). The Company has authorized the sale, at its discretion, of common stock shares in an aggregate offering amount up to $10,000,000 under the Sales Agreement pursuant to the Company’s effective Registration Statement on Form S-3 (File No. 333-267066), as supplemented by a prospectus supplement. During the three months ended March 31, 2025, the Company sold an aggregate of 762 shares (152,250 shares prior to the April Reverse Stock Split) of common stock, respectively, for gross proceeds of $362,269 under the ATM facility, before deducting the related offering expenses. During the three months ended June 30, 2025, no shares were offered or sold under this ATM facility.

Series D Preferred Stock

On February 26, 2025, the Company entered into a consent and waiver agreement to the loan agreement with Conduit. In accordance therewith, the Company issued one share of Series D Preferred Stock to Conduit as further collateral security for the Conduit Loan. The Series D Preferred Stock was issued in accordance with a Certificate of Designation of Preferences, Rights, and Limitations filed with the State of Delaware on February 27, 2025. In connection with the issuance of the share of Series D Preferred Stock, Conduit granted an irrevocable proxy to the Company to vote such share on an as-converted basis as a single class with the holders of the Company’s common stock. Upon full payment of the Conduit Loan and following the April 2025 special meeting of shareholders, the Series D Preferred Stock share was returned to the Company and was cancelled.

February 2025 Offering

On February 27, 2025, the Company entered into a securities purchase agreement (the “Purchase Agreement”) with certain institutional investors in which Roth Capital Partners LLC (“Roth”) acted as the placement agent pursuant to the terms of a Placement Agent Agreement (“PAA”) of same date, for the purchase and sale of an aggregate of $15 million in securities in a first closing consisting of (i) 9,825 shares (1,965,000 shares prior to the April Reverse Stock Split) of common stock, and (ii) pre-funded warrants to purchase up to 55,392 shares (11,078,480 shares prior to the April Reverse Stock Split) of common stock (the “Pre-Funded Warrants), and, subject to shareholder approval, an aggregate of $5 million in securities in a second closing consisting of (x) 21,739 shares (4,347,826 shares prior to the April Reverse Stock Split) of common stock or Pre-Funded Warrants, (y) series A warrants to purchase up to 86,957 shares (17,391,306 shares prior to the April Reverse Stock Split) of common stock (the “Series A Warrants”), and (z) series B warrants to purchase up to 86,957 shares (17,391,306 shares prior to the April Reverse Stock Split) of common stock (the “Series B Warrants”) in a registered direct offering (the “Offering”) at a purchase price of $230.00 per share ($1.15 prior to the April Reverse Stock Split) and accompanying warrants or $229.80 per Pre-Funded Warrant ($1.1490 prior to the April Reverse Stock Split) and accompanying warrants. The Series A Warrants had an exercise price of $345.00 per share ($1.725 per share prior to the April Reverse Stock Split) subject to standard adjustments for dividends, splits and similar events; a one-time adjustment on the date of issuance (as described in the warrants), subject to a floor price described therein; and also subject to adjustment upon a Dilutive Issuance (as described in the warrants), subject to a floor price described therein. The Series B Warrants had an exercise price of $575.00 per share ($2.875 per share prior to the April Reverse Stock Split) subject to standard adjustments for dividends, splits and similar events; a one-time adjustment on the date of issuance (as described in the warrants), all of which were subject to a floor price described therein; and also subject to adjustment upon a Dilutive Issuance (as described in the warrants), subject to a floor price described therein. The Series B Warrants could also be exercised on an alternative cashless basis pursuant to which the holder may exchange each warrant for 3 shares of common stock. The Series A Warrants and Series B Warrants were issuable at the second tranche closing and were exercisable immediately after issuance and carried a term of exercise equal to five years from the date of issuance.

The Purchase Agreement contains customary representations and warranties and agreements of the Company and the Purchaser and customary indemnification rights and obligations of the parties.

The first tranche closing of the Offering occurred on February 27, 2025. The Company determined that the second closing of the Offering represents a firm commitment and a contingent forward contract to issue and sell additional shares of common stock or Pre-Funded Warrants and the Series A Warrants and Series B Warrants conditioned upon the receipt of approval by the Company’s stockholders to approve the issuance of the Series A Warrants, Series B Warrants and the

shares of common stock underlying such warrants. The Company determined that the contingent forward contract is a freestanding financial instrument that does not meet the requirements for equity classification due to certain settlement provisions that fail the indexation guidance in ASC 815-40 and meets the definition of a derivative. As a result, the contingent forward contract was recorded as a liability initially at its fair value on the date of issuance and will be subsequently remeasured to fair value on each balance sheet date until the underlying instruments are issued and sold in the second tranche closing of the Offering. The Company determined the initial fair value of the contingent forward contract to be $5,515,525.

The shares of common stock and Pre-Funded Warrants issued and sold in the first closing of the Offering were classified as a component of permanent equity and recorded at the issuance date using a relative fair value allocation method of the remaining proceeds of the Offering after recording the contingent forward contract at its fair value on the date of issuance. The Pre-Funded Warrants were equity classified because they were freestanding financial instruments that were legally detachable and separately exercisable from the equity instruments, were immediately exercisable, did not embody an obligation for the Company to repurchase its shares, and permitted the holders to receive a fixed number of shares of common stock upon exercise. In addition, such Pre-Funded Warrants did not provide any guarantee of value or return. As of March 31, 2025, all 55,392 Pre-Funded Warrants (11,078,480 prior to the April Reverse Stock Split) issued and sold in the first closing of the Offering had been exercised in exchange for the issuance of 55,392 shares (11,078,480 shares prior to the April Reverse Stock Split) of the Company's common stock.

On April 3, 2025, the Company received the necessary approval by the Company’s stockholders in a specially called stockholder meeting to approve the issuance of the Series A warrants, Series B warrants and the shares of common stock underlying such warrants, in addition to other matters. On April 7, 2025, the Company closed the second tranche of its previously announced securities purchase agreement, dated February 27, 2025, with certain institutional investors for the purchase and sale of 21,720 shares (4,347,826 shares prior to the April 2025 Reverse Stock Split) of the Company’s common stock (or common stock equivalents in lieu thereof), Series A warrants to purchase up to an aggregate 86,957 shares (17,391,306 shares prior to the April 2025 Reverse Stock Split) of the Company’s common stock and Series B warrants to purchase up to an aggregate 86,957 shares (17,391,306 shares prior to the April 2025 Reverse Stock Split) of the Company’s common stock at an effective purchase price of $230.00 per share ($1.15 per share prior to the April 2025 Reverse Stock Split) (or common stock equivalents in lieu thereof) and associated warrants in a registered direct offering, which was priced at-the-market under applicable Nasdaq rules, for the second tranche gross proceeds of $5.0 million. Together with the approximately $15.0 million in gross proceeds from the previously announced first tranche closing completed on February 27, 2025, the Company raised approximately $20.0 million in aggregate gross proceeds from the offering before deducting placement agent fees and other offering expenses payable by the Company.

The Company derecognized the contingent forward contract liability representing the firm commitment for the second closing on April 7, 2025, the date of the second closing. The Company determined the fair value of the contingent forward contract liability to be $4,399,054 immediately prior to the second closing. For the three and six months ended June 30, 2025, the Company recorded a gain of $789,588 and $899,080, respectively, from the change in fair value of the contingent forward contract, which is included in “Other (expense) income, net” in the condensed consolidated statements of operations.

The Series A warrants and Series B warrants did not meet the requirements for equity classification due to certain settlement provisions that fail the indexation guidance in ASC 815-40. As a result, the Series A warrants and Series B warrants were recorded as a liability initially at fair value on the date of issuance and were subsequently remeasured to fair value at each balance sheet date until exercised.

During the second quarter for 2025, the Series B warrants to purchase the Company’s common stock were fully exercised in exchange for the issuance of 3,260,870 shares (652,173,983 shares prior to the April Reverse Stock Split) of the Company’s common stock and are no longer outstanding as of June 30, 2025. The Company determined the fair value of the Series B warrants to be $8,637,203 immediately prior to exercise and recorded a loss of $8,025,504 from the change in fair value of the Series B warrants, which is included in “Other (expense) income, net” in the condensed consolidated statements of operations.

On June 26, 2025, the Company and holders of Series A warrants to purchase the Company’s common stock, mutually agreed to terminate and cancel the Series A warrants for an aggregate payment of to the Series A warrant holders of