v3.22.2.2
Employee Equity-Based Compensation (Tables)
 9 Months Ended
Sep. 30, 2022
Share-Based Payment Arrangement [Abstract]  
Schedule of Option Activity under the Company's Equity-Based Compensation
The following table summarizes option activity under the Company's equity-based compensation plans for the nine months ended September 30, 2022:

Number of SharesWeighted Average Exercise Price per Share
Options outstanding January 1, 20227,192,540 $13.89 
Granted140,000 3.05 
Forfeited(204,232)12.49 
Exercised(6,105)1.04 
Expired(1,457,019)10.33 
Options outstanding September 30, 20225,665,184 $14.60 
Schedule of Outstanding Options and Options that are Exercisable (Vested)
The following table shows summary information for outstanding options and options that are exercisable (vested) as of September 30, 2022:

Options
Outstanding		Options
Exercisable
Number of options5,665,184 4,422,595 
Weighted average remaining contractual term (in years)5.545.04
Weighted average exercise price$14.60 $15.32 
Weighted average fair value$9.10 $9.44 
Aggregate intrinsic value (in thousands)$— $— 
Schedule of Restricted Stock Activity
The following table summarizes RSU and restricted stock award activity for the nine months ended September 30, 2022:

Number of SharesWeighted Average Grant Date Fair Value per Share
Outstanding January 1, 20222,090,182 $10.77 
Granted4,107,083 1.55 
Forfeited(451,703)8.68 
Released(1,127,017)3.43 
Outstanding September 30, 20224,618,545 $4.57 
Schedule of Equity-Based Compensation Expense
The table below summarizes equity-based compensation expense for the three and nine months ended September 30, 2022 and 2021 (in thousands):

Three Months Ended September 30,Nine Months Ended September 30,
2022202120222021
Cost of sales$167 $82 $570 $257 
Research and development151 266 1,052 4,340 
Sales, general and administrative911 3,281 6,557 14,461 
$1,229 $3,629 $8,179 $19,058 

The table below summarizes share-based compensation cost capitalized to inventory for the three and nine months ended September 30, 2022 and 2021 (in thousands):

Three Months Ended September 30,Nine Months Ended September 30,
2022202120222021
Cost capitalized to inventory
$69 $77 $186 $319 
The table below summarizes share-based compensation cost in connection with performance-based stock options for the nine months ended September 30, 2022 and 2021 (in thousands):

Nine Months Ended September 30,
20222021
Performance-based stock option expense
$— $230 
The table below summarizes share-based compensation cost in connection with performance-based RSUs for the nine months ended September 30, 2022 and 2021 (in thousands):

Nine Months Ended September 30,
20222021
Performance-based RSU expense
$— $818