v3.25.4
Stock-based compensation (Tables)
 12 Months Ended
Dec. 31, 2025
Share-Based Payment Arrangement [Abstract]  
Schedule of Stock Option Activity
The following table summarizes the Company’s stock option activity since December 31, 2024:
Number of
shares		Weighted
average
exercise price		Weighted
average
remaining
contractual term		Aggregate
intrinsic value
(in years)(in thousands)
Outstanding as of December 31, 20246,296,505$2.39 6.18$135 
Granted 1,454,2503.43 
Exercised(456,842)1.09 
Expired(285,384)8.08 
Forfeited(469,266)2.87 
Outstanding as of December 31, 20256,539,263$2.43 6.00$8,653 
Options vested and expected to vest as of
December 31, 2025		6,539,263$2.43 6.00$8,653 
Options exercisable as of December 31, 20254,873,801$2.40 5.12$7,319 
Schedule of Black-Scholes Option-Pricing Model
The following table presents, on a weighted average basis, the assumptions used in the Black-Scholes option- pricing model to determine the grant-date fair value of stock options granted to employees and directors:
Year Ended December 31,
20252024
Risk-free interest rate 4.27 %4.31 %
Expected term (in years)65.9
Expected volatility51.7 %49.8 %
Expected dividend yield0 %0 %
Schedule of Restricted Stock and Restricted Stock Units Activity
The following table summarizes the Company's restricted stock units activity since December 31, 2024:
Number of
shares
Weighted
average grant date
fair value
Unvested as of December 31, 20241,941,688$1.46 
Granted2,168,925$3.14 
Vested(856,445)$1.93 
Forfeited(458,192)$2.85 
Unvested as of December 31, 20252,795,976$2.39 
Schedule of ESPP Black-Scholes Option-Pricing Model The following weighted-average assumptions were used in the calculation of fair value of shares issued under the 2021 ESPP:
Year Ended December 31,
20252024
Risk-free interest rate4.00 %4.98 %
Expected term (in years)0.50.5
Expected volatility50.8 %45.9 %
Expected dividend yield0 %0 %
Schedule of Stock-Based Compensation Expense
Stock-based compensation expense was classified in the consolidated statements of operations as follows (in thousands):
Year Ended December 31,
20252024
Cost of revenue$433 $517 
General and administrative2,850 2,429 
Sales and marketing392 417 
Research and development358 511 
Total stock-based compensation expense$4,033 $3,874