Stock-Based Compensation (Tables)
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3 Months Ended |
12 Months Ended |
Mar. 31, 2022 |
Dec. 31, 2021 |
| Share-based Payment Arrangement [Abstract] |
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| Summary of stock option activity under the Plan |
Stock option activity under the Plan is as follows (in thousands, except share and per share amounts):
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Weighted-
Average
Remaining
Contractual
Life (years) |
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Balance – December 31, 2021 |
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23,708,957 |
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$ |
3.05 |
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7.99 |
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$ |
125,429 |
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(73,920 |
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$ |
2.35 |
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(1,789,281 |
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$ |
3.27 |
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21,845,756 |
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$ |
3.03 |
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7.70 |
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$ |
78,980 |
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Options vested and exercisable – March 31, 2022 |
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12,539,154 |
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$ |
2.00 |
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7.03 |
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$ |
57,573 |
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Stock option activity under the Plan is as follows (in thousands, except share and per share amounts):
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Weighted-
Average
Remaining
Contractual
Life (years) |
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Balance – December 31, 2020 |
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15,925,992 |
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$ |
1.74 |
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8.15 |
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$ |
52,909 |
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9,922,446 |
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5.08 |
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(646,711 |
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1.66 |
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(1,492,770 |
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3.14 |
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Balance – December 31, 2021 |
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23,708,957 |
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3.05 |
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7.99 |
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$ |
125,429 |
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Options vested and exercisable – December 31, 2021 |
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11,372,994 |
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$ |
1.84 |
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7.16 |
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$ |
73,885 |
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| Schedule of nonvested performance-based units activity |
Performance-based restricted stock units activity under the Plan is as follows (in thousands, except share and per share amounts):
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Average Grant
Date Fair Value
Per Share |
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Unvested – December 31, 2021 |
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1,511,191 |
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$ |
8.62 |
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1,802,790 |
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7.19 |
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(572,335 |
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8.25 |
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Unvested – March 31, 2022 |
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2,741,646 |
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$ |
7.76 |
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| Summary of the restricted common stock |
A summary of the restricted common stock is as follows:
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Outstanding and unvested as of December 31, 2021 |
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69,513 |
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$ |
2.25 |
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(55,450 |
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2.25 |
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Outstanding and unvested as of March 31, 2022 |
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14,063 |
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$ |
2.25 |
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A summary of the restricted common stock is as follows:
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Outstanding and unvested as of December 31, 2020 |
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1,049,034 |
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$ |
1.93 |
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9,375 |
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0.89 |
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(857,077 |
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1.84 |
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(131,819 |
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2.25 |
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Outstanding and unvested as of December 31, 2021 |
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69,513 |
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$ |
2.25 |
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| Schedule of share-based payment award, stock options, valuation assumptions |
The fair value of stock option awards granted to employees was estimated at the date of grant using the Black-Scholes option-pricing model, with the following assumptions:
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Three Months Ended March 31, |
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Fair value of common stock |
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$5.95 |
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5.0 – 6.10 |
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73.66% – 75.19% |
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0.50% – 0.69% |
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— |
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The fair value of stock option awards granted to employees was estimated at the date of grant using the Black-Scholes option-pricing model, with the following assumptions:
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Fair value of common stock |
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$3.41 – 3.84 |
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$3.48 – 4.15 |
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$5.95 – 8.56 |
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5.00 – 6.11 |
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5.00 – 6.11 |
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5.00 – 6.28 |
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58.49% – 59.39% |
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61.12% – 74.34% |
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62.33% – 75.19% |
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1.72% – 1.98% |
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0.21% – 1.66% |
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0.50% – 1.21% |
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— % |
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— % |
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— % |
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