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Equity-Based Compensation | 12 Months Ended
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Dec. 31, 2021
Share-based Payment Arrangement [Abstract] |
Equity-Based Compensation | NOTE 13 — EQUITY-BASED COMPENSATION AND OTHER Equity-Based Compensation We have various equity incentive compensation plans that provide for the granting of restricted common stock, options for the purchase of our common stock, and other performance-based, equity-based compensation awards to our executive officers, key employees, nonexecutive officers, and directors. Stock options are exercisable for periods of up to ten years. Compensation cost for all share-based payments is based on the grant date fair value and is recognized in earnings over the requisite service period. Total equity-based compensation expense before tax for the three years ended December 31, 2021, 2020, and 2019, was $4.7 million, $5.5 million, and $5.8 million, respectively, and is included in general and administrative expense. Stock Incentive Plans In May 2007, our stockholders approved the adoption of the TETRA Technologies, Inc. 2007 Equity Incentive Compensation Plan. In May 2008, our stockholders approved the adoption of the TETRA Technologies, Inc. Amended and Restated 2007 Equity Incentive Compensation Plan, which among other changes, resulted in an increase in the maximum number of shares authorized for issuance. In May 2010, our stockholders approved further amendments to the TETRA Technologies, Inc. Amended and Restated 2007 Equity Incentive Compensation Plan (renamed as the 2007 Long Term Incentive Compensation Plan) which, among other changes, resulted in an additional increase in the maximum number of shares authorized for issuance. Pursuant to the 2007 Long Term Incentive Compensation Plan, we are authorized to grant up to 5,590,000 shares in the form of stock options (including incentive stock options and nonqualified stock options); restricted stock; bonus stock; stock appreciation rights; and performance awards to employees, and non-employee directors. As of February 2017, no further awards may be granted under the TETRA Technologies, Inc. Amended and Restated 2007 Equity Incentive Compensation Plan. In May 2011, our stockholders approved the adoption of the TETRA Technologies, Inc. 2011 Long Term Incentive Compensation Plan. Pursuant to this plan, we were authorized to grant up to 2,200,000 shares in the form of stock options, restricted stock, bonus stock, stock appreciation rights, and performance awards to employees, and non-employee directors. On May 3, 2013, shareholders approved the TETRA Technologies, Inc. 2011 Long Term Incentive Compensation Plan that, among other things, increased the number of authorized shares to 5,600,000. On May 3, 2016, shareholders approved the TETRA Technologies, Inc. Third Amended and Restated 2011 Long Term Incentive Compensation Plan which, among other things, increased the number of authorized shares to 11,000,000. As of May 2018, no further awards may be granted under the TETRA Technologies, Inc. Third Amended and Restated 2011 Long Term Incentive Compensation Plan. In February 2018, the board of directors adopted the 2018 Inducement Restricted Stock Plan (“2018 Inducement Plan”). The 2018 Inducement Plan provides for grants of restricted stock up to a plan maximum of 1,000,000 shares. In May 2018, our stockholders approved the adoption of the TETRA Technologies, Inc. 2018 Equity Incentive Plan (“2018 Equity Plan”) and the TETRA Technologies, Inc. 2018 Non-Employee Director Equity Incentive Plan (“2018 Director Plan”). In May 2021, our stockholders approved the First Amended and Restated 2018 Equity Incentive Plan (the “Amended 2018 Equity Plan”), which amended the 2018 Equity Plan and terminated the 2018 Director Plan. Pursuant to the Amended 2018 Equity Plan, we are authorized to grant up to 11,865,000 shares in the form of stock options, restricted stock, restricted stock units, stock appreciation rights, performance units, performance shares, other stock-based awards and cash-based awards to employees and non-employee directors. Stock Options We did not grant any stock options during the year ended December 31, 2021 and 2020. The weighted average fair value of options granted during the year ended December 31, 2019 was $0.76, using the Black-Scholes option valuation model with the following weighted average assumptions:
|  |  |  | Year Ended December 31,
|  |  |  | 2019
Expected stock price volatility |  |  |  | 61 | %
Expected life of options |  |  |  | 4.4 years
Risk-free interest rate |  |  |  | 2.3 | %
Expected dividend yield |  |  |  | — |
The risk-free interest rate is based on the U.S. Treasury yield curve in effect on the grant date for a period commensurate with the estimated expected life of the stock options. Expected volatility is based on the historical volatility of our stock over the period commensurate with the expected life of the stock options and other factors. The dividend yield is based on the current annualized dividend rate in effect during the quarter in which the grant was made. At the time of the stock option grant during the year ended December 31, 2019, we had not historically paid any dividends and did not expect to pay any dividends during the expected life of the stock options. The following is a summary of stock option activity for the year ended December 31, 2021:
|  | Shares Under Option |  | Weighted Average Option Price Per Share |  | Weighted-Average Remaining Contractual Life |  | Aggregate Intrinsic Value
|  | (In Thousands) |  |  |  |  |  | (In Thousands)
Outstanding at January 1, 2021 |  | 3,208 |  |  | $ | 6.73 |  |  |  |  |
Options canceled |  | (61) |  |  | 6.82 |  |  |  |  |
Options exercised |  | (11) |  |  | 3.87 |  |  |  |  |
Options expired |  | (152) |  |  | 12.94 |  |  |  |  |
Outstanding at December 31, 2021 |  | 2,984 |  |  | 6.42 |  |  | 4.0 years |  | $ | 13 |
Expected to vest at December 31, 2021 |  | 2,984 |  |  | 6.42 |  |  | 4.0 years |  | 13 |
Exercisable at December 31, 2021 |  | 2,984 |  |  | $ | 6.42 |  |  | 4.0 years |  | $ | 13 |
Intrinsic value is the difference between the market value of our stock option multiplied by the number of stock options outstanding for those stock options where the market value exceeds their exercise price. The total intrinsic value of stock options exercised during the year ended December 31, 2021, was less than $0.1 million. There were no options exercised during the years ended December 31, 2020 or 2019. At December 31, 2021, total unrecognized compensation cost related to unvested stock options is not significant. Restricted Stock Restricted stock awards and restricted stock units are periodically granted to key employees, including grants for employment inducements, as well as to members of our Board of Directors. These awards historically have provided for vesting periods of three years. Non-employee director grants vest in full before the first anniversary of the grant. Upon vesting of restricted stock awards, shares are issued to award recipients. Restricted stock units may be settled in cash or shares at vest, as determined by the Compensation Committee or the Non-Executive Award Committee, as applicable. The following is a summary of activity for our outstanding restricted stock for the year ended December 31, 2021:
|  | Shares |  | Weighted Average Grant Date Fair Value Per Share
|  | (In Thousands) |  |
Non-vested restricted stock outstanding at December 31, 2020 |  | 3,733 |  |  | $ | 2.11 |
Granted |  | 2,246 |  |  | 2.74 |
Vested |  | (2,294) |  |  | 2.42 |
Canceled/Forfeited |  | (94) |  |  | 2.22 |
Non-vested restricted stock outstanding at December 31, 2021 |  | 3,591 |  |  | 2.31 |
Total compensation cost recognized for restricted stock was $4.6 million, $5.1 million, and $4.8 million for the years ended December 31, 2021, 2020, and 2019, respectively. Total unrecognized compensation cost at December 31, 2021, related to restricted stock is approximately $4.7 million which is expected to be recognized over a weighted-average remaining amortization period of 1.8 years. During the years ended December 31, 2021, 2020, and 2019, the total fair value of shares vested was $5.5 million, $4.5 million and $4.0 million, respectively. During 2021, 2020, and 2019, we received 184,699, 130,785 and 105,622 shares, respectively, of our common stock related to the vesting of certain employee restricted stock. Such surrendered shares received by us are included in treasury stock. At December 31, 2021, net of options previously exercised pursuant to our various equity compensation plans, we have a maximum of 5,738,412 shares of common stock issuable pursuant to awards previously granted and outstanding and awards authorized to be granted in the future. 401(k) Plan We have a 401(k) retirement plan (the “Plan”) that covers substantially all employees and entitles them to contribute up to 75% of their annual compensation, subject to maximum limitations imposed by the Internal Revenue Code. Effective October 1, 2018, enhancements were made to the Plan, including changing the employer match to 50% of each employee’s contribution up to 8%. Participants will be 100% vested in employer match contributions after 3 years of service, instead of after 5 years of service. In addition, we can make discretionary contributions which are allocable to participants in accordance with the Plan. During the fourth quarter of 2021, we reinstated the 401(k) matching for our employees which was suspended during 2020 due to the COVID pandemic and market conditions. Total expense related to our 401(k) plan was $0.5 million, $1.5 million, and $5.1 million for the years ended December 31, 2021, 2020, and 2019, respectively. Deferred Compensation Plan We provide our officers, directors, and certain key employees with the opportunity to participate in an unfunded, deferred compensation program. There were 16 participants in the program at December 31, 2021. Under the program, participants may defer up to 100% of their yearly total cash compensation. The amounts deferred remain our sole property, and we use a portion of the proceeds to purchase life insurance policies on the lives of certain of the participants. The insurance policies, which also remain our sole property, are payable to us upon the death of the insured. We separately contract with the participant to pay to the participant the amount of deferred compensation, as adjusted for gains or losses, invested in participant-selected investment funds. Participants may elect to receive deferrals and earnings at termination, death, or at a specified future date while still employed. Distributions while employed must be at least three years after the deferral election. The program is not qualified under Section 401 of the Internal Revenue Code. At December 31, 2021, the amounts payable under the plan approximated the value of the corresponding assets we owned.

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