v3.26.1
Stock-based compensation (Tables)
 3 Months Ended
Mar. 31, 2026
Share-Based Payment Arrangement [Abstract]  
Schedule of Stock Option Weighted Average Assumptions
The following table presents information about stock options:
 Three months ended
 March 31,
2026		February 23, 2025
Information about stock options granted:
Weighted-average grant date fair value per share$5.28 $4.68 
Weighted-average assumptions used to determine grant-date fair value:
Expected life4.4 years4.4 years
Risk-free interest rate3.6 %4.1 %
Volatility88 %84 %
Dividend yield— %— %
Schedule of Other Information about Stock-Based Awards
The following table presents information about other stock-based awards:
 Three months ended
 March 31,
2026		February 23,
2025
Weighted-average fair value per share as of transaction date:
RSUs granted$7.11 $7.25 
RSUs vested— 9.26 
The following table summarizes stock-based compensation by income statement line item:
Three months ended
March 31,
2026		February 23,
2025
Cost of sales
$216 $184 
Research and development expense(242)— 
Selling, general and administrative expense1,724 2,368 
Stock-based compensation expense$1,698 $2,552 
Schedule of Stock Option Activity
The following table presents information about stock option balances and activity:
 SharesWeighted-average exercise price per shareWeighted-average remaining contractual term
Aggregate intrinsic value
Outstanding at December 31, 20251,377,054 $7.83 
Granted8,775 7.88 
Forfeited(59,520)6.80 
Expired(20,400)10.62 
Outstanding at March 31, 20261,305,909 7.84 4.9 years$— 
Exercisable at March 31, 2026538,481 9.47 3.2 years— 
Schedule of Stock-based Compensation Activity
The following table presents information about recent RSU and PSU activity:
RSUsPSUs
 SharesWeighted-average grant date fair value per shareSharesWeighted-average grant date fair value per share
Outstanding at December 31, 20251,440,419 $6.46 2,283,000 $4.25 
Granted451,780 7.11 — — 
Forfeited(64,538)7.88 — — 
Outstanding at March 31, 20261,827,661 6.57 2,283,000 4.25