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Stock-Based Incentive Compensation Plans (Tables)
3 Months Ended
Mar. 31, 2025
Share-Based Payment Arrangement [Abstract]  
Schedule of Available for Grant
A summary of shares available for grant under the Company’s 2021 Equity Incentive Plan, or the 2021 Plan, is as follows:
Shares Available for Grant
Shares available for grant as of January 1, 20252,201,012 
Authorized1,507,251 
Granted/Awarded(871,273)
Cancelled18,335 
Withheld for taxes17,380 
Shares available for grant as of March 31, 2025
2,872,705 
Schedule of Stock Option Activity
A summary of stock option activity for the three months ended March 31, 2025 is set forth below:
Options Outstanding
Number of SharesWeighted-Average Exercise PriceWeighted Average Remaining Contractual Term (in Years)
Balances as of January 1, 20252,368,208 $6.01 7.27
Granted294,957 $10.27 
Exercised(101,301)$3.80 
Cancelled(8,174)$21.67 
Balances at March 31, 2025
2,553,690 $6.54 7.62
Vested and exercisable at March 31, 2025
1,611,585 $5.06 6.82
Vested and expected to vest at March 31, 2025
2,553,690 $6.54 7.62
Schedule of Restricted Stock Units
Activity with respect to restricted stock units was as follows:
Number of Shares Underlying Outstanding Restricted Stock UnitsWeighted Average Grant Date Fair Value
Unvested, January 1, 20251,480,338 $8.92 
Granted576,316 $11.51 
Vested(299,535)$10.17 
Cancelled(10,161)$10.48 
Unvested, March 31, 2025
1,746,958 $9.55 
Schedule of Share-based Payment Arrangement, Expensed and Capitalized, Amount
The Company recognized stock-based compensation as follows (in thousands):
Three Months Ended March 31,
20252024
Cost of goods sold$178 $162 
Research and development872 809 
Selling, general and administrative1,576 1,569 
Total stock-based compensation$2,626 $2,540 
The above stock-based compensation expense related to the following equity-based awards (in thousands):
Three Months Ended March 31,
20252024
Stock options and restricted stock units$2,489 $2,404 
ESPP137 136 
Total stock-based compensation$2,626 $2,540