v3.26.1
Stock-based Compensation (Tables)
 3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Share-Based Payment Arrangement [Abstract]    
Schedule of Stock Option Activity
Stock option activity under the Company’s equity incentive plan was as follows:
Options Outstanding
Number of Options
(in thousands)
Weighted–Average Exercise Price
Weighted-Average Remaining Contractual Life
(in years)
Aggregate Intrinsic Value
(in thousands)
Outstanding as of December 31, 202555,438$1.90 
Granted—— 
Exercised(1,650)0.59 
Forfeited(677)2.61 
Expired(4)0.47 
Outstanding as of March 31, 202653,107$1.93 6.8$272,103 
Exercisable as of March 31, 202635,645$0.84 5.8$217,293 
Stock option activity under the Company’s equity incentive plan was as follows:
Options Outstanding
Number of Options
(in thousands)
Weighted–Average Exercise Price
Weighted-Average Remaining Contractual Life
(in years)
Aggregate Intrinsic Value
(in thousands)
Outstanding as of December 31, 202449,157$0.60 
Granted11,3057.10 
Exercised(2,558)0.56 
Forfeited(1,958)1.32 
Expired(508)0.61 
Outstanding as of December 31, 202555,438$1.90 7.0$500,376 
Exercisable as of December 31, 202534,480$0.74 6.0$351,119 
Schedule of Fair Value of Stock Options  
The fair value of stock options granted was estimated at the grant-date using the Black-Scholes option-pricing model using the following assumptions:
Year Ended December 31,
202520242023
Expected volatility
84.2% - 91.1%
87.0% - 91.9%
59.4%
Expected term (in years)
3.9 - 6.1
5.1 - 6.1
6.0
Risk-free interest rate
3.8% - 4.5%
3.6% - 4.3%
4.2%
Expected dividend yield
——— 
Schedule of Nonvested Restricted Stock Units Activity
RSUs activity under the Company's equity incentive plan was as follows:
Unvested RSUs Outstanding
Number of RSUs
(in thousands)
Weighted–Average Grant-Date Fair Value
Outstanding as of December 31, 20252,622$5.91 
Granted6728.75 
Vested
——
Forfeited(243)5.97 
Outstanding as of March 31, 20263,051$6.53 
RSUs activity under the Company's equity incentive plan was as follows:
Unvested RSUs Outstanding
Number of RSUs
(in thousands)
Weighted–Average Grant-Date Fair Value
Outstanding as of December 31, 2024—$— 
Granted2,6245.91 
Vested
——
Forfeited(2)5.91 
Outstanding as of December 31, 20252,622$5.91 
Schedule of Total Stock-Based Compensation
Total stock-based compensation recorded in the Company’s condensed consolidated statements of operations and comprehensive income (loss) was as follows (in thousands):
Three Months Ended March 31,
20262025
Research and development$2,442 $1,185 
General and administrative3,039 482 
Truck and freight operations168 143 
Sales and marketing375 68 
Total stock-based compensation$6,024 $1,878 
Total stock-based compensation recorded in the Company’s consolidated statements of operations and comprehensive loss was as follows (in thousands):
Year Ended December 31,
202520242023
Research and development$7,405 $3,482 $3,270 
General and administrative10,104 1,405 1,658 
Truck and freight operations477 209 182 
Sales and marketing1,096 454 289 
Total stock-based compensation$19,082 $5,550 $5,399