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Fair Value Measurements
6 Months Ended
Jun. 30, 2025
Fair Value Measurements  
Fair Value Measurements

(3)Fair Value Measurements

ASC 820, “Fair Value Measurements”, provides guidance on the development and disclosure of fair value measurements. The Company follows this guidance for fair value measurements, which defines fair value, establishes a framework for measuring fair value under U.S. GAAP, and expands disclosures about fair value measurements. The guidance requires fair value measurements be classified and disclosed in one of the following three categories:

Level 1:   Quoted prices (unadjusted) in active markets that are accessible at the measurement date for identical assets or liabilities.

Level 2:   Observable prices that are based on inputs not quoted on active markets but corroborated by market data.

Level 3:   Unobservable inputs which are supported by little or no market activity with values determined using pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant judgment or estimation.

Fair value measurements discussed herein are based upon certain market assumptions and pertinent information available to management as of the dates of the Company’s balance sheets herein. The carrying amount of cash, grant receivable, prepaid expenses and other current assets, right-of-use asset, accounts payable and accrued expenses, deferred grant income, and current and long-term portion of lease liability approximated their fair value due to their short-term or fixed arrangements nature. Warrant liabilities were recorded based on their assessed fair value.

The Company records warrant liability for warrants issued in the December 2, 2024, PIPE transaction at assessed fair value, a Level 3 measurement on the fair value hierarchy due to the significant unobservable inputs used in their valuation such as probability-weighted outcomes regarding shareholder approval and potential de-listing of the Company stock. The fair value of the warrant liability at December 31, 2024, was determined using a Monte Carlo simulation model within a risk-neutral framework. This widely accepted financial modeling approach is employed to value complex instruments, including warrants with strike price reset and anti-dilution provisions. The model simulates multiple potential future paths for the Company’s stock price, accounting for the reset provision by adjusting the strike price if the stock price falls below a specified level, but not lower than the specified Floor Price. Upon each reset of the strike price, the quantity of warrants was also adjusted based on the warrants’ anti-dilution provisions. For each simulated path, the warrant’s payoff is calculated using the final stock price and the potentially adjusted strike price and quantity, then discounted to present value. The fair value is estimated as the average of these discounted payoffs across all simulated paths. This method ensures the valuation reflects the impact of the strike price reset provision and anti-dilution provision on the warrants’ potential values.

The table below lists key assumptions used in the valuations of the warrant liability as of June 30, 2025, and December 31, 2024. The $554 thousand fair value of the Series C Warrants as of June 30, 2025, was an increase of $36 thousand from December 31, 2024, which increase was recorded as change in fair value of warrant liability. Fair value as of June 30, 2025, was determined using a Black-Scholes valuation model which the Company deemed appropriate as both the exercise price of the warrants and the number of shares issuable were known, no longer requiring use of a simulation model, such as the Monte Carlo valuation model, used to determine fair value at December 31, 2024.

Assumptions

June 30, 2025

December 31, 2024

Risk-free rate

3.74%

4.33%

Volatility

115.00%

150.00%

Expiration date of Series C

November 29, 2029

November 29, 2029

Expiration date of Series D

N/A

May 29, 2027

Shareholder approval date

N/A

February 25, 2025

Potential de-listing date

N/A

N/A

The fair value of the warrant liability is as follows:

PIPE Warrants

PIPE Warrants

Total Warrant

Level 3 Rollforward:

Series C

Series D

Liability

Balance, December 31, 2023

$

$

$

Additions

501,961

5,100,746

5,602,707

Change in fair value

15,910

922,780

938,690

Balance, December 31, 2024

517,871

6,023,526

6,541,397

Additions

Change in fair value

35,843

9,360,793

9,396,636

Exercise of Series D warrants

(15,384,319)

(15,384,319)

Balance, June 30, 2025

$

553,714

$

$

553,714