v3.25.2
Stockholders’ Equity
6 Months Ended
Jun. 30, 2025
Equity [Abstract]  
Stockholders’ Equity

5. Stockholders’ Equity

 

Employee Stock Plans

 

The following table presents a summary of the activity relating to the Company’s issuance of restricted shares of common stock and common stock options:

 

  

Six Months Ended

June 30,

 
   2025   2024 
Board of Director restricted share issuances (1)   250,000    300,000 
Aggregate grant date fair value  $ 0.02 million   $0.02 million 
           
Employee stock plan issuances (2)          
Option issuances   215,000    290,000 
Exercise price per share  $0.06   $0.08 
Weighted-average grant date fair value per share  $0.04   $0.07 
Aggregate fair value of options issued (3)  $0.01 million   $0.02 million 
           
Weighted-average assumptions used to estimate the fair value of the options issued during the period:          
Risk-free interest rate   3.91%   4.33%
Expected term   5 years    5 years 
Expected volatility   77.90%   129.18%
Dividend yield   Zero    Zero 

 

(1) The shares of common stock were fully vested upon issuance but are restricted from trading for a period of one year from the date of grant.
(2) The options were fully vested upon issuance and have contractual terms of 10 years.
(3) Determined by using the Black-Scholes valuation model.

 

As of June 30, 2025, there were 3,080,646 outstanding common stock options under the Company’s equity incentive plan of which 100% were vested. There was no unamortized stock-based compensation as of June 30, 2025. The weighted-average remaining contractual life, weighted-average exercise price per share and the aggregate intrinsic value of the outstanding common stock options as of June 30, 2025 were 5.1 years, $0.09 and approximately $0.01 million, respectively.