The SES Holdings 2011 Equity Incentive Plan (the “2011 Plan”) was approved by the board of managers of SES Holdings in April 2011. In conjunction with the private placement of 16,100,000 shares of the Company’s Class A common stock on December 20, 2016 (the “Select 144A Offering”), the Company adopted the Select Energy Services, Inc. 2016 Equity Incentive Plan (as amended, the “2016 Plan”) for employees, consultants and directors of the Company and its affiliates. Options that were outstanding under the 2011 Plan immediately prior to the Select 144A Offering were cancelled in exchange for new options granted under the 2016 Plan. On May 8, 2020, the Company’s stockholders approved an amendment to the 2016 Plan to increase the number of shares of the Company’s Class A common stock that may be issued under the 2016 Plan by 4,000,000 shares and to make certain other administrative changes. The 2016 Plan includes share recycling provisions that allow shares subject to an award that are withheld or surrendered to the Company in payment of any exercise price or taxes or an award that expires or is cancelled, forfeited or otherwise terminated without actual delivery of the underlying shares of Class A common stock to be considered not delivered and thus available to be granted as new awards under the 2016 Plan.

Currently, the maximum number of shares reserved for issuance under the 2016 Plan is approximately 13.3 million shares, with approximately 2.9 million shares available to be issued as of December 31, 2022. For all share-based compensation award types, the Company accounts for forfeitures as they occur.

On February 23, 2022, the Company assumed the Nuverra Environmental Solutions, Inc. 2017 Long Term Incentive Plan (the “2017 Plan”), and the Nuverra Environmental Solutions, Inc. 2018 Restricted Stock Plan for Directors (the “2018 Plan” and, together with the 2017 Plan, the “Assumed Plans”) and certain equity awards outstanding under the Assumed Plans in connection with the Nuverra Acquisition. Under the 2017 Plan, the Company may grant to certain eligible participants who were employees, directors or other service providers of Nuverra prior to the Nuverra Acquisition options, stock appreciation rights, restricted stock, restricted stock units, stock awards, dividend equivalents, other stock-based awards, cash awards, substitute awards, performance awards, or any combination of the foregoing, with respect to up to 1,772,058 shares of Nuverra common stock. Under the 2018 Plan, the Company may

grant to certain eligible participants who were directors of Nuverra prior to the Nuverra Acquisition restricted stock awards with respect to up to 100,000 shares of Nuverra common stock. The shares remaining available for issuance under the Assumed Plans were converted into shares of the Company’s Class A common stock at a conversion rate of one Nuverra share to 0.2551 shares of the Company’s Class A common stock such that at the time of the Nuverra Acquisition an aggregate of 131,110 shares of the Company’s Class A common stock was available for issuance with respect to assumed awards and future awards under the 2017 Plan and an aggregate of 24,984 shares of the Company’s Class A common stock was available for issuance with respect to assumed awards and future awards under the 2018 Plan. No awards have been granted under these legacy Nuverra Assumed Plans.

The aggregate number of shares of the Company’s Class A common stock available for issuance under the Assumed Plans will be reduced by one share of the Company’s Class A common stock for every one share of the Company’s Class A common stock subject to an award granted under the Assumed Plans. If any award granted under the 2017 Plan (in whole or in part) is cancelled, forfeited, exchanged, settled in cash, or otherwise terminated, the shares of the Company’s Class A common stock subject to such award will again be available at a rate of one share of the Company’s Class A common stock for every one share of the Company’s Class A common stock subject to such award, and if any award granted under the 2018 Plan (in whole or part) is forfeited, the shares of the Company’s Class A common stock subject to such award will again be available at a rate of one share of the Company’s Class A common stock for every one share of the Company’s Class A common stock subject to such award. The Company registered the securities issuable under the Assumed Plans by filing a registration statement on Form S-8 with the Securities and Exchange Commission on February 23, 2022. As of December 31, 2022, the maximum number of shares of the Company’s Class A common stock available for future issuance under the 2017 Plan is 55,769 and under the 2018 Plan is 14,736.

The Company has outstanding stock option awards as of December 31, 2022 but there have been no option grants since 2018. The stock options were granted with an exercise price equal to or greater than the fair market value of a share of Class A common stock as of the date of grant. The Company utilized the Monte Carlo option pricing model to determine fair value of the options granted during 2018, which incorporated assumptions to value equity-based awards. The risk-free interest rate is based on the U.S. Treasury yield curve in effect for the expected term of the option at the time of grant. The expected life of the options at the time of the grant was based on the vesting period and term of the options awarded, which was ten years.

A summary of the Company’s stock option activity and related information as of and for the year ended December 31, 2022 is as follows:

The Company recognized $0, a nominal amount of compensation expense, and $0.2 million of compensation expense related to stock options during the years ended December 31, 2022, 2021 and 2020, respectively. As of December 31, 2021, all equity-based compensation expense related to stock options had been recognized.

Restricted Stock Awards and Restricted Stock Units

The value of the restricted stock awards and restricted stock units granted was established by the market price of the Class A common stock on the date of grant and is recorded as compensation expense ratably over the vesting term, which is generally one to three years from the applicable date of grant. The Company recognized compensation expense of $14.3 million, $7.9 million and $7.2 million related to the restricted stock awards and restricted stock units for the years ended December 31, 2022, 2021 and 2020, respectively. As of December 31, 2022, there was $19.1 million of unrecognized compensation expense with a weighted-average remaining life of 1.7 years related to unvested restricted stock awards. During 2022 and 2021, the Company paid $4.4 million and $1.2 million, respectively, to repurchase shares in connection with employee minimum tax withholding obligations on vested shares. No restricted stock units have been granted since 2017.

A summary of the Company’s restricted stock awards activity and related information for the year ended December 31, 2022 is as follows:


	For the year ended December 31, 2022
		Weighted-average
	Restricted Stock Awards	Grant Date Fair Value
Nonvested as of December 31, 2021	3,144,513	$	6.35
Granted	2,923,073		8.21
Vested	(1,621,148)		6.97
Forfeited	(208,723)		7.12
Nonvested as of December 31, 2022	4,237,715	$	7.36

Performance Share Units (“PSUs”)

During 2020, 2021 and 2022, the Company approved grants of PSUs that are subject to both performance-based and service-based vesting provisions related to (i) return on asset performance (“ROA”) in comparison to thirteen peer companies and (ii) Adjusted Free Cash Flow (“FCF”) performance percentage. The number of shares of Class A common stock issued to a recipient upon vesting of the PSUs will be calculated based on ROA and FCF performance over the applicable period from either January 1, 2020 through December 31, 2022, January 1, 2021 through December 31, 2023 or January 1, 2022 through December 31, 2024.

During 2021, the Company also approved grants of PSUs subject to both performance-based and service-based vesting conditions based on adjusted earnings before taxes and depreciation (“Adjusted EBITDA”) (as defined in the applicable PSU agreement). The target PSUs granted in 2021 connected with Adjusted EBITDA would vest at 100% only if the minimum Adjusted EBITDA threshold was met. None of the Adjusted EBITDA-based PSUs granted in 2021 achieved the performance-based vesting conditions and all such awards were forfeited for zero consideration.

The target number of shares of Class A common stock subject to each remaining PSU granted in 2020, 2021 and 2022 is one; however, based on the achievement of performance criteria, the number of shares of Class A common stock that may be received in settlement of each PSU can range from zero to 1.75 times the target number. The PSUs become earned at the end of the performance period after the attainment of the performance level has been certified by the compensation committee, which will be no later than June 30, 2023 for the 2020 PSU grants, June 30, 2024 for the 2021 PSU grants, and June 30, 2025, for the 2022 PSU grants, assuming the applicable minimum performance metrics are achieved.

The target PSUs granted in 2020 that become earned connected with the ROA in comparison to other companies will be determined based on the Company’s Average Return on Assets (as defined in the applicable PSU agreement) relative to the Average Return on Assets of the peer companies (as defined in the applicable PSU agreement) in accordance with the following table, but only if the Company’s Average Return on Assets is equal to or greater than 5% during the performance period. The target PSUs granted in 2021 and 2022 removed the 5% minimum ROA for the Company and added that the Company must have a positive Total Shareholder Return (as defined in the applicable PSU agreement) over the performance period. As a result of this market condition being added, the 2021 and 2022 PSUs will be valued each reporting period utilizing a Black-Scholes model.


Ranking Among Peer Group		Percentage of Target Amount Earned
Outside of Top 10		0%
Top 10		50%
Top 7		100%
Top 3		175%

The target PSUs that become earned in connection with the adjusted FCF performance percentage will be determined (as defined in the applicable PSU agreement) in accordance with the following table:


Adjusted FCF Performance Percentage		Percentage of Target Amount Earned
Less than 70%		0%
70%		50%
100%		100%
130%		175%

The fair value on the date the PSUs were granted during 2022, 2021 and 2020 was $5.0 million, $4.4 million and $4.4 million, respectively. Compensation expense related to the PSUs is determined by multiplying the number of shares of Class A common stock underlying such awards that, based on the Company’s estimate, are probable to vest by the measurement-date (i.e., the last day of each reporting period date) fair value and recognized using the accelerated attribution method. During the year ended December 31, 2022, the Company revised the estimates for the PSUs granted in 2020 and expect 0% to vest. The Company recognized compensation expense of $1.3 million, $1.6 million, and a reduction to compensation expense of $1.7 million related to the PSUs for the years ended December 31, 2022, 2021 and 2020, respectively.

As of December 31, 2022, the unrecognized compensation cost related to our unvested PSUs is estimated to be $4.6 million and is expected to be recognized over a weighted-average period of 1.7 years. However, this compensation cost will be adjusted as appropriate throughout the applicable performance periods.

The following table summarizes the information about the PSUs outstanding as of December 31, 2022:


		PSUs
Nonvested as of December 31, 2021		2,205,604
Target shares granted		665,992
Target shares forfeited (1)		(1,010,862)
Target shares outstanding as of December 31, 2022		1,860,734

(1) All PSUs granted in 2019 and all PSUs granted in 2021 tied to Adjusted EBITDA did not achieve the respective performance targets and were forfeited.

Employee Stock Purchase Plan (ESPP)

The Company has an Employee Stock Purchase Plan (“ESPP”) under which employees that have been continuously employed for at least one year may purchase shares of Class A common stock at a discount. The plan

provides for four offering periods per year for purchases: December 1 through February 28, March 1 through May 31, June 1 through August 31 and September 1 through November 30. At the end of each offering period, enrolled employees purchase shares of Class A common stock at a price equal to 95% of the market value of the stock on the last day of such offering period. The purchases are made at the end of an offering period with funds accumulated through payroll deductions over the course of the offering period. Subject to limitations set forth in the plan and under IRS regulations, eligible employees may elect to contribute a maximum of $15,000 to the plan in a single calendar year. The plan is deemed to be noncompensatory. On November 3, 2022, our board of directors approved an amendment to the ESPP, which suspended all offerings on or after December 1, 2022. Our board of directors reserves the right to recommence offerings pursuant to its discretion and the terms of the ESPP.

The following table summarizes ESPP activity (in thousands, except shares):


	For the year ended
	December 31, 2022
Cash received for shares issued	$	53
Shares issued		6,973

Share-repurchases

During the years ended December 31, 2022 and 2021, the Company repurchased 2,297,985 and zero shares, respectively, of Class A common stock in the open market and repurchased 524,562 and 199,974 shares, respectively, of Class A common stock in connection with employee minimum tax withholding requirements for units vested under the 2016 Plan. All repurchased shares were retired. During the year ended December 31, 2022, the repurchases were accounted for as a decrease to paid in-capital of $20.3 million and a decrease to Class A common stock of approximately $28,000.