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Equity Incentive Plans
3 Months Ended
Mar. 31, 2026
Share-Based Payment Arrangement [Abstract]  
Equity Incentive Plans Equity Incentive Plans
Stock Options
The activity related to stock options during the three months ended March 31, 2026 consisted of the following:
March 31, 2026
Number of shares (in thousands)
Weighted-Average Exercise Price
Outstanding at December 31, 2025
8,992 $9.98 
Granted1,612 13.98 
Exercised/released
(64)9.49 
Cancelled/forfeited
(1,227)10.94 
Outstanding at March 31, 2026
9,313 $10.55 
The following weighted-average assumptions were used to estimate the fair value of the options granted during the three months ended March 31, 2026 and 2025:
Three Months Ended March 31,
20262025
Expected volatility69 %78 %
Risk-free interest rate3.49 %4.00 %
Expected term (in years)5.05.0
Expected dividend yield0.0 %0.0%
Fair value per common share option$8.35$4.95
Performance Stock Units and Restricted Stock Units
During the three months ended March 31, 2026 and 2025, the Company granted PSUs that vest in 4 tranches upon the Company’s common shares achieving four progressively higher target prices, and each tranche is further subject to a one year service period following tranche achievement. The Company estimated the fair value of each PSU with a market and service condition on the date of grant by using a Monte Carlo simulation (lattice model).
Beginning in 2025, RSUs subject only to time-based vesting conditions are no longer being granted. RSUs granted prior to 2025 vest in 3 equal annual installments on the first, second and third anniversary of the grant date. The fair value of RSUs is based on the market price of the Company’s common shares on the date prior to the grant.
The activity related to PSUs and RSUs for the three months ended March 31, 2026 consisted of the following:
March 31, 2026
Number of shares (in thousands)
Weighted-average fair value $
Unvested balance, December 31, 2025
4,021 $7.27 
Granted939 12.03 
Vested(1,650)7.98 
Cancelled/forfeited
(1,557)7.81 
Unvested balance, March 31, 2026
1,753 $8.66 
Share-based Compensation Expense
The classification of share-based compensation expense consisted of the following (in thousands):
Three Months Ended
 March 31,
20262025
Research and development$111 $93 
Selling, general and administrative(1,203)(3,513)
Capitalized in inventory, net
226 11 
Share-based compensation expense$(866)$(3,409)
As of March 31, 2026, total unrecognized share-based compensation expense related to unvested stock options, PSUs, RSUs and ESPP was $15.3 million, which is expected to be recognized over a weighted-average period of 1.4 years.