In conjunction with the June 2017 Public Offering, the Company issued to certain affiliates of the underwriters, as compensation, warrants to purchase an aggregate of 4,313 shares of common stock (216 shares as adjusted for the May Stock Split), at an exercise price of $125.00 per share ($2,500.00 as adjusted for the May Stock Split),. The warrants are exercisable at the option of the holder on or after June 21, 2018 and expire June 21, 2023.The fair value of warrants was calculated utilizing a Black-Scholes model and amounted to $63,796. The fair market value of the warrants as of the date of issuance has been included in issuance costs in additional paid-in capital.

In conjunction with the Purchase Agreement in April 2019, the Company also sold warrants to purchase up to an aggregate of 42,388 shares of common stock (2,119 shares as adjusted for the May Stock Split), at an initial exercise price of $27.50 per share ($550.00 as adjusted for the May Stock Split). The warrants are exercisable at the option of the holder on or after October 29, 2019 and expire October 29, 2024. The Company issued to certain affiliates of the underwriters, as compensation, warrants to purchase an aggregate of 4,239 shares of common stock (212 shares as adjusted for the May Stock Split), at an initial exercise price of $27.50 per share ($550.00 as adjusted for the May Stock Split), The warrants are exercisable at the option of the holder on or after October 29, 2019 and expire April 24, 2024.

In conjunction with the Underwriting Agreement in August 2019, the Company issued to the underwriter, as compensation, warrants to purchase an aggregate of 2,250 shares of common stock (112 shares as adjusted for the May Stock Split), at an initial exercise price of $21.25 per share ($425.00 as adjusted for the May Stock Split),. The warrants are exercisable at the option of the holder on or after February 1, 2020 and expire August 29, 2024. 

In conjunction with the Underwriting Agreement in May 2020, the Company issued to the underwriter, as compensation, warrants to purchase an aggregate of 300,000 shares of common stock (15,000 shares as adjusted for the May Stock Split), at an initial exercise price of $3.14 per share ($62.80 as adjusted for the May Stock Split),. The warrants are exercisable at the option of the holder on or after November 6, 2020 and expire May 5, 2025. During the year ended December 31, 2021, 226,300 (11,315 shares as adjusted for the May Stock Split), warrants were exercised and converted into common stock of the Company. The Company has received proceeds of approximately $707,000 from the exercise of the warrants.

In conjunction with the Purchase Agreement in October 2021, the Company also issued Series A warrants to purchase up to 1,898,630 shares of Common Stock (94,932 shares as adjusted for the May Stock Split), in a concurrent private placement. The warrants are have an exercise price of $4.80 per share, ($96.00 as adjusted for the May Stock Split), exercisable at the option of the holder on or after October 26, 2021 and will expire five years from the date of issuance. These warrants were exercised in connection with the Inducement Agreement during the three months ended March 31, 2024.

In conjunction with the issuance of the Debenture in February 2023, the Company issued the Peak Warrant to purchase 500,000 shares of the Company’s common stock (25,000 shares as adjusted for the May Stock Split).The Peak Warrant expires five years from its date of issuance. The Peak Warrant is exercisable, at the option of the holder, at any time, for up to 500,000 of shares of common stock (25,000 shares as adjusted for the May Stock Split), of the Company at an exercise price equal to $2.25 (the “Exercise Price”) ($45.00 as adjusted for the May Stock Split), subject to adjustment for any stock splits, stock dividends, recapitalizations and similar events and in the event the Company, at any time while the Peak Warrant is outstanding, issues, sells or grants any option to purchase, or sells or grants any right to reprice, or otherwise disposes of, or issues common stock or other securities convertible into, exercisable for, or otherwise entitle any person the right to acquire, shares of common stock, other than with respect to an Exempt Issuance (as defined in the Debenture), at an effective price per share that is lower than the then Exercise Price. In the event of any such anti-dilutive event, the Exercise Price will be reduced at the option of the holder to such lower effective price of the dilutive event, subject to a floor price of $0.40 per share ($8.00 as adjusted for the May Stock Split) unless and until the Company obtains shareholder approval for any issuance below such floor price. The initial fair value of the Peak Warrant amounted to $278,239 and was recorded, in combination with common stock issued above, as a debt discount of $354,329 at the time of issuance of the Debenture.

In connection with the issuance of the Holdings Debenture in January 2024, the Company issued the “Peak Warrant” #3 to purchase up to 375,000 shares of the Company’s common stock (18,750 as adjusted for the May Stock Split) to Peak One’s designee, as described in the January 2024 Purchase Agreement. The PeakWarrant #3 expires five years from its date of issuance. The Peak Warrant #3 is exercisable, at the option of the holder, at any time, for up to 375,000 of shares of common stock (18,750 as adjusted for the May Stock Split) of the Company at an exercise price equal to $0.53 (the “Exercise Price”) ($10.60 as adjusted for the May Stock Split), subject to adjustment for any stock splits, stock dividends, recapitalizations and similar events, as well as anti-dilution price protection provisions that are subject to a floor price as set forth in the Peak Warrant #3. The Peak Warrant #3 provides for cashless exercise under certain circumstances. The initial fair value of the Peak Warrant #3 amounted to $109,161 and was recorded, in combination with common stock issued above, as a debt discount of $251,361 at the time of issuance of the Debenture.

In connection with the Private Placement in May 2024, the Company issued common warrants (the “Common Warrants”) to purchase up to 2,758,620 shares of the Company’s common stock. The Common Warrants are exercisable immediately following the date of issuance, have a term of five years from the effective date of the corresponding registration statement registering the shares of Company common stock and the shares of Company common stock issuable upon exercise of the Common Warrants and have an exercise price of $2.65 per share. A holder may not exercise any Common Warrants that would cause the aggregate number of shares of common stock beneficially owned by the holder to exceed 4.99% of the Company’s outstanding common stock immediately after exercise. The Common Warrants are subject to adjustment in the event of certain stock dividends and distributions, stock splits, stock combinations, reclassifications or similar events affecting the common stock and also upon any distributions for no consideration of assets to the Company’s stockholders. In the event of certain corporate transactions, the holders of the Common Warrants will be entitled to receive, upon exercise of the Common Warrants the kind and amount of securities, cash or other property that the holders would have received had they exercised the Common Warrants immediately prior to such transaction. The Common Warrants do not entitle the holders thereof to any voting rights or any of the other rights or privileges to which holders of common stock are entitled.

In connection with the issuance of debt to Firstfire in February 2025, the Company issued warrants (the “Firstfire Warrants”) to purchase up to 450,000 shares of the Company’s common stock. The Firstfire Warrants are exercisable immediately following the date of issuance, have a term of five years and have an exercise price of $0.80 per share. A holder may not exercise any of the Firstfire Warrants that would cause the aggregate number of shares of common stock beneficially owned by the holder to exceed 4.99% of the Company’s outstanding common stock immediately after exercise. The Firstfire Warrants are subject to adjustment in the event of certain stock dividends and distributions, stock splits, stock combinations, reclassifications or similar events affecting the common stock and also upon any distributions for no consideration of assets to the Company’s stockholders. In the event of certain corporate transactions, the holders of the Firstfire Warrants will be entitled to receive, upon exercise of the Firstfire Warrants the kind and amount of securities, cash or other property that the holders would have received had they exercised the Common Warrants immediately prior to such transaction. The Firstfire Warrants do not entitle the holders thereof to any voting rights or any of the other rights or privileges to which holders of common stock are entitled.

Warrant activity for the three months ended March 31, 2025 are summarized as follows:

The fair value of warrants granted during the three months ended March 31, 2025 were valued using a Black-Scholes Value model, with the following assumptions