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Stock Based Compensation (Tables)
12 Months Ended
Dec. 31, 2025
Share-Based Payment Arrangement [Abstract]  
Schedule of weighted-average assumptions
The assumptions used in the Company’s valuation are summarized as follows, presented on a weighted average basis:
Year Ended December 31,
202520242023
Risk-free interest rate
3.8% - 3.9%
4.2 %4.6 %
Expected term (in years)
2.5 - 6.2
6.24.8
Expected volatility
124.9% -142.5%
107.8 %98.1 %
Expected annual dividends per share— %— %— %
Schedule of stock option activity
The following table summarizes the Company’s stock option activity for the year ended December 31, 2025:     
Number of share optionsWeighted average exercise price
Weighted average remaining contractual term (years)
Aggregate intrinsic value
Outstanding at December 31, 2024*108,136,310$2.348.6$1,677,748 
Granted*13,297,73219.20
Forfeited(1,015,750)10.12
Exercised(953,564)3.99
Outstanding at December 31, 2025119,464,728$4.147.8$1,618,734 
Vested and expected to vest at December 31, 2025110,536,687$3.867.7$1,527,454 
Exercisable at December 31, 202564,834,314$2.327.4$983,902 

* The stock option activity in the table above includes performance-based options outstanding as of December 31, 2024 of 48,220,320 of which 39,013,976 options were unvested and converted to time-based vesting. During the three months ended March 31, 2025, the company granted 5,475,000 performance-based options which were modified to time-based vesting during the three months ended June 30, 2025.
Schedule of stock-based compensation expense
Stock‑based compensation expense related to stock options is recorded within the consolidated statements of operations and comprehensive loss as follows:

Year Ended December 31,
202520242023
Research and development$218,564 $16,007 $4,408 
General and administrative513,856  34,974  9,700  
Total stock-based compensation$732,420$50,981$14,108
The following table summarizes stock-based compensation expense associated with each of our stock-based compensation arrangements:
Year Ended December 31,
202520242023
Time-based stock options$731,358 $39,349 $12,606 
Performance and market-based stock options —  11,033  1,318  
Employee stock purchase plan1,062599184
Total stock-based compensation$732,420$50,981$14,108