v3.25.3
Stock-Based Compensation (Tables)
9 Months Ended 12 Months Ended
Sep. 30, 2025
Dec. 31, 2024
Share-Based Payment Arrangement [Abstract]    
Summary of Assumptions Used to Compute Fair Value

The following table summarizes assumptions used to compute the fair value of options granted:

 

   September 30, 2025   September 30, 2024 
Stock price   $14-5,990    $146 - 305 
Exercise price   $15-5,990    $146 - 2,500 
Expected volatility   110.95%   61.00 - 62.12% 
Expected term (in years)   10    5.61 - 6.08 
Risk-free interest rate   4.45%   4.20 - 4.45% 

The following table summarizes assumptions used to compute the fair value of options granted:

 

Summary of Assumptions Used to Compute Fair Value 

   December 31, 2024  December 31, 2023
Stock price  $150.00 - 2,930.00  $4,190.00 - 5,990.00
Exercise price  $58.50 - 2,500.00  $4,190.00 - 5,990.00
Expected volatility  61.00 - 69.57%  80.00 - 110.95%
Expected term (in years)  5.61 - 6.08  5.00 - 6.08
Risk-free interest rate  3.71 - 4.45%  3.46 - 4.31%
Summary of Stock Option Activity

A summary of stock option activity under the Plan is as follows:

 

   Shares Underlying Options   Weighted Average Exercise Price   Weighted Average Remaining Contractual Term (in years)   Intrinsic Value 
Outstanding at December 31, 2024   2,566   $1,618.30    8.52   $— 
Granted   10,086    210.45    9.12    — 
Expired   (17)   176.44    —    — 
Forfeited   (43)   292.63    —    — 
Outstanding at September 30, 2025   12,592   $347.85    8.89    — 
Exercisable at September 30, 2025   1,312   $1,668.77    6.82   $— 

A summary of stock option activity under the Plan is as follows:

 

Summary of Stock Option Activity 

   Shares Underlying Options   Weighted Average Exercise Price   Weighted Average Remaining Contractual Term (in years)   Intrinsic Value 
Outstanding at December 31, 2022   635   $1,052.40    7.95   $108,253 
Granted   1,738    4,964.90           
Exercised   (36)   1,094.60         4,480 
Expired   (13)   5,990.00           
Forfeited   (823)   5,785.60           
Outstanding at December 31, 2023   1,501   $2,914.40    8.29   $109,821 
Granted   2,845    1,433.40           
Exercised   —    —           
Expired   (200)   3,092.40           
Forfeited   (1,580)   2,345.70           
Outstanding at December 31, 2024   2,566   $1,618.30    8.52   $— 
Exercisable at December 31, 2024   656   $1,596.50    6.37   $— 
Summary of Activity with Respect Status of, RSUs

A summary of the activity with respect to, and status of, RSUs during the nine months ended September 30, 2025 is presented below:

 

   Units   Weighted Average Grant Date Fair Value 
Outstanding at December 31, 2024   34,078   $17.40 
Granted   520,529    7.03 
Exercised   (125,427)   11.91 
Forfeited   (14,751)   8.49 
Outstanding at September 30, 2025   414,429   $7.45 

A summary of the activity with respect to, and status of, RSUs during the year ended December 31, 2024 is presented below:

 

 Summary of Activity with Respect Status of, RSUs

   Units   Weighted Average Grant Date Fair Value 
Outstanding at December 31, 2023   —   $— 
Granted   42,504    26.50 
Exercised   (8,179)   58.60 
Forfeited   (247)   218.40 
Outstanding at December 31, 2024   34,078   $17.40