STOCK-BASED COMPENSATION | STOCK-BASED COMPENSATION We maintain, as approved by the board of directors and the stockholders, the 2017 Incentive Stock Plan, the 2019 Incentive Stock Plan and the 2023 Long-Term Incentive Plan (the “Plans”) providing for the issuance of stock-based awards to employees, officers, directors or consultants of the Company. Non-qualified stock options may only be granted with an exercise price equal to the market value of our common stock on the grant date. Awards under the Plans may be either vested or unvested options, or unvested restricted stock. The Plans have authorized 17.5 million shares for issuance of stock-based awards. As of September 30, 2023 there were approximatel y 2.9 million shares available for issuance of future stock awards under the Plans. Stock-based compensation expense The following table summarizes stock-based compensation expense for the periods indicated: Three Months Ended Nine Months Ended 2023 2022 2023 2022 Stock options $ 244,887 $ 245,867 $ 727,996 $ 732,830 Restricted stock awards 2,385,351 2,047,989 6,952,423 5,954,098 Performance-based restricted stock awards 890,166 691,419 2,641,470 1,941,049 Total stock-based compensation expense $ 3,520,404 $ 2,985,275 $ 10,321,889 $ 8,627,977 Stock options A summary of stock option activity for the nine months ended September 30, 2023 is as follows: Number of Options Weighted Weighted Balance, December 31, 2022 423,626 $ 7.6 6.7 Exercised (50,200) 1.1 Forfeited (80,997) 1.7 Balance, September 30, 2023 292,429 $ 10.3 8.3 Number of options exercisable at September 30, 2023 204,213 $ 10.3 8.3 As of September 30, 2023, unrecognized compensation expense was $0.9 million for unvested options which is expected to be recognized over the next 0.9 years. Restricted stock awards A summary of restricted stock award activity for the nine months ended September 30, 2023 is as follows: Number of Unvested Shares Weighted Average Grant Date Fair Value per Share Balance, December 31, 2022 3,525,331 $ 4.9 Granted 3,962,731 1.5 Vested (1,516,409) 4.5 Forfeited (311,998) 2.7 Balance, September 30, 2023 5,659,655 $ 2.7 As of September 30, 2023, unrecognized compensation expense was $11.7 million for unvested restricted stock awards which is expected to be recognized over the next 1.6 years. Performance share units ( “ PSUs ” ) As of September 30, 2023, the number of unvested PSUs was 3.1 million. The vesting of the PSUs is conditioned upon achievement of certain performance objectives over performance periods ending December 31, 2024 and 2025 as defined in each award agreement. Fifty percent of the PSUs vest based upon the Company’s total shareholder return as compared to a group of peer companies (“TSR PSUs”), and fifty percent of the PSUs vest based upon our performance on certain measures including a cumulative adjusted EBITDA target (“EBITDA PSUs”). Depending on the actual achievement of the performance objectives, the grantee may earn between 0% and 200% of the target PSUs. A summary of the activity for PSU awards with total shareholder return performance objectives for the nine months ended September 30, 2023 is as follows: Number of Unvested Shares Weighted Average Grant Date Fair Value per Share Balance, December 31, 2022 738,751 $ 11.8 Granted 986,144 1.9 Forfeited (22,278) 1.9 Balance, September 30, 2023 1,702,617 $ 6.2 The grant date fair value of $1.88 per TSR PSU for the awards issued in 2023 was estimated using a Monte-Carlo simulation model using a volatility assumption of 109% and risk-free interest rate of 3.77%. The grant date fair value of $11.79 per TSR PSU for the awards issued in 2022 was estimated using a Monte-Carlo simulation model using a volatility assumption of 117% and risk-free interest rate of 0.69%. As of September 30, 2023, unrecognized compensation expense was $5.0 million for unvested TSR PSUs, which is expected to be recognized over the next 1.5 years. A summary of the PSU awards with cumulative adjusted EBITDA targets for the nine months ended September 30, 2023 is as follows: Number of Unvested Shares Balance, December 31, 2022 432,546 Granted 986,144 Forfeited (22,278) Balance, September 30, 2023 1,396,412 |