v3.26.1
Stock-Based Compensation (Tables)
6 Months Ended
Jun. 30, 2026
Share-Based Payment Arrangement [Abstract]  
Summary of Stock Option Activity

A summary of the 2023 Plan option activity and related information follows (in thousands, except weighted average numbers):

  

  

Number of

Options

Outstanding

  

Weighted

Average

Exercise

Price

  

Weighted-

Average

Remaining

Contractual

Life (Years)

  

Aggregate

Intrinsic

Value

 
Outstanding at January 1, 2026   17   $791.66    8.39   $ 
Options granted   1    2.64           
Options exercised                   
Options forfeited or cancelled   (1)   4,791.15           
Outstanding at June 30, 2026   17   $622.53    7.93   $ 
Exercisable at June 30, 2026   7   $1,363.69    6.45   $ 
Schedule of Stock-Based Compensation Expense

The Company recorded stock-based compensation expense in the following categories on the accompanying unaudited condensed consolidated statements of operations for the periods presented (in thousands):

  

   2026   2025   2026   2025 
  

Three Months Ended

June 30,

  

Six Months Ended

June 30,

 
   2026   2025   2026   2025 
Research and development  $39   $111   $94   $258 
General and administrative   118    411    294    871 
Total stock-based compensation expense  $157   $522   $388   $1,129 
Schedule of Stock Options Valuation Assumptions

  

  

Three Months Ended

June 30,

  

Six Months Ended

June 30,

 
   2026   2025   2026   2025 
Expected volatility   87.2%   87.2%   87.2%   87.0%
Risk-free interest rate   4.23%   3.90%   4.23%   4.06%
Expected option life (in years)   5.08    6.08    5.08    6.03 
Expected dividend yield   0.0%   0.0%   0.0%   0.0%