| Summary of Stock Option Activity |
The following table shows restricted stock unit (“RSU”) and stock option activity for the six months ended June 30, 2023:
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Time-Based | | PSP | | LTIP | | Total | | Weighted Average Exercise Price of Options | | Weighted Average FMV of RSUs | | Options | | RSUs | | Options | | RSUs | | Options | | RSUs | | | | | | | | Outstanding at December 31, 2022 | 12,259 | | | 15,273 | | | 2,273 | | | 13,119 | | | 11,152 | | | 13,864 | | | 67,940 | | | $ | 6.17 | | | $ | 29.64 | | | Granted | 600 | | | 10,122 | | | — | | | 2,010 | | | — | | | 209 | | | 12,941 | | | 25.81 | | | 17.57 | | | Exercised options / vested RSUs | (814) | | | (3,590) | | | (171) | | | (1,715) | | | — | | | (8,316) | | | (14,606) | | | 3.42 | | | 44.81 | | | Change in awards due to performance-based multiplier | — | | | — | | | — | | | 1,142 | | | — | | | — | | | 1,142 | | | — | | | 60.25 | | | Forfeited | (285) | | | (888) | | | — | | | (127) | | | — | | | (108) | | | (1,408) | | | 25.31 | | | 22.54 | | | Outstanding at June 30, 2023 | 11,760 | | | 20,917 | | | 2,102 | | | 14,429 | | | 11,152 | | | 5,649 | | | 66,009 | | | $ | 6.53 | | | $ | 22.03 | |
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| Summary of Stock Compensation Expense |
The following tables shows stock compensation expense for the three and six months ended June 30, 2023 and 2022: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Three months ended June 30, 2023 | | Three months ended June 30, 2022 | | Options | | RSUs | | Total | | Options | | RSUs | | Total | Time-based (1) | $ | 2,546 | | | $ | 38,752 | | | $ | 41,298 | | | $ | 3,830 | | | $ | 26,983 | | | $ | 30,813 | | PSP (2) | — | | | 35,872 | | | 35,872 | | | — | | 13,764 | | | 13,764 | | LTIP (2) | — | | | 12,023 | | | 12,023 | | | — | | 90,944 | | | 90,944 | | | Total | $ | 2,546 | | | $ | 86,647 | | | $ | 89,193 | | | $ | 3,830 | | | $ | 131,691 | | | $ | 135,521 | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Six months ended June 30, 2023 | | Six months ended June 30, 2022 | | Options | | RSUs | | Total | | Options | | RSUs | | Total | Time-based (1) | $ | 6,390 | | | $ | 83,559 | | | $ | 89,949 | | | $ | 7,694 | | | $ | 48,769 | | | $ | 56,463 | | PSP (2) | — | | | 59,887 | | | 59,887 | | | — | | | 57,131 | | | 57,131 | | LTIP (2) | — | | | 56,757 | | | 56,757 | | | — | | | 209,004 | | | 209,004 | | | Total | $ | 6,390 | | | $ | 200,203 | | | $ | 206,593 | | | $ | 7,694 | | | $ | 314,904 | | | $ | 322,598 | | | | | | | | | | | | | |
(1) Time-based awards vest and are expensed over a defined service period. (2) PSP and LTIP awards vest based on defined performance criteria and are expensed based on the probability of achieving such criteria. During the three months ended March 31, 2022, the Company recorded a cumulative catch-up adjustment of $20.7 million in additional stock-based compensation expense related to its updated expectation of achieving higher revenue targets than originally estimated for certain PSP awards which have a range of payouts.
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