Document:

EX-10.22

 Exhibit 10.22 

[______], 2021 
 To Holders of Options to Acquire
Stock of Sterling Ultimate Parent Corp.: 
 The subject matter of this letter agreement is highly confidential and you are not permitted
to disclose the contents of this letter agreement with any person other than directors and officers of Sterling Ultimate Parent Corp., your financial advisor or your attorney. 

You are receiving this letter agreement because you are a holder of nonqualified stock options (“Options”) to acquire shares
of common stock, par value $0.01 per share (“Common Stock”) of Sterling Ultimate Parent Corp. (the “Company”) pursuant to the terms and conditions of the Sterling Ultimate Parent Corp. 2015 Long-Term Equity
Incentive Plan (as amended and restated from time to time, the “Equity Plan”) and one or more individual Award Agreements (as defined in the Equity Plan). 

As you know, on June 8, 2021, Sterling Ultimate Parent Corp. (the “Company”) confidentially submitted a draft
registration statement on Form S-1 (the “Registration Statement”) to the U.S. Securities and Exchange Commission (the “SEC”) in connection with a proposed initial public
offering (the “IPO”) of the Company’s Common Stock. In connection with the IPO, the Company has determined to amend all outstanding Options pursuant to the terms and conditions of this letter agreement effective concurrently
with the effectiveness of that certain underwriting agreement (the “Underwriting Agreement”) to be entered into between the Company, the selling stockholders set forth therein, and Goldman Sachs & Co. LLC (as representative
of the underwriters set forth therein) (the “Signing”). 
 In addition, the Company intends to adopt a new omnibus equity
incentive plan and make equity incentive grants thereunder in connection with the IPO. Please be aware that your eligibility for any such grants is contingent upon you entering into this letter agreement. 

1. Option Amendment. Subject to Section 2 below and contingent upon your continued employment with the Company through the date of
the Signing (the “Signing Date”), any and all unvested Options issued and outstanding to you as of the Signing Date that will not by their terms vest in connection with the IPO will automatically vest and, notwithstanding anything
to the contrary in the applicable Award Agreement, if your service with the Company terminates for any reason, each of your Options shall remain exercisable following your Date of Termination (as defined in the applicable Award Agreement) for the
period set forth in the applicable Award Agreement or, if longer, the Extended Post-Termination Exercise Period. For purposes of this letter agreement, the “Extended Post-Termination Exercise Period” means the date that is
six (6) months following such second anniversary of the effective date of the IPO; provided, that, if such date falls during a blackout period, the exercise period will be extended until date that is thirty (30) days
following the commencement of the Company’s next open trading window. 
 2. Option Shares
Lock-Up. You hereby agree and acknowledge that with respect to any shares of Common Stock delivered or deliverable upon exercise of your Options (the “Option Shares”), (i) you shall not
transfer any of your Option Shares, excluding Option Shares sold by you in the IPO (if any), prior to the date that is six (6) months following the effective date of the IPO (or such earlier time as the underwriter’s IPO lock-up terminates), (ii) thereafter, but prior to the first anniversary of the effective date of the IPO, you may transfer up to twenty five percent (25%) of your Option Shares (reduced by any Option Shares that
you sold in the IPO), (iii) on or after the first 

 
anniversary but prior to the second anniversary of the effective date of the IPO, you may transfer up to fifty percent (50%) of your Option Shares (reduced by any Option Shares that you sold
prior to the first anniversary of the effective date of the IPO), and (iii) on or after the second anniversary of the effective date of the IPO, you may transfer all of your Option Shares, subject, in each case, to applicable law and the
trading policies of the Company, as may be in effect from time to time. The Company may impose stop-transfer instructions with respect to your Option Shares until the end of the applicable period. 

3. Except as provided herein, the terms and conditions of the Award Agreements governing your Options shall remain in full force and effect.

 4. This letter agreement, together with the Equity Plan and your individual Award Agreements, constitutes the entire agreement between
the parties hereto, and supersedes all prior representations, agreements and understandings (including, without limitation, any prior course of dealings), both written and oral, between the parties hereto with respect to the subject matter hereof.
This letter agreement may be executed by facsimile or electronic transmission (e.g., “.pdf”) and in multiple counterparts, each of which shall be deemed to be an original but all of which together will constitute one and the same
instrument. 
 [Signature Page Follows] 

 Please sign below to confirm your acceptance of this letter agreement. If you have any questions, please
don’t hesitate to contact me.                 
  

			
	Sincerely,
	
	Sterling Ultimate Parent Corp.
		
	By:	 	  

	Name:	 	
	Title:	 	

 Agreed and Acknowledged 

This ______ day of _________________, 2021 
  

			
	By:	 	  

	Name:	 	

 [SIGNATURE PAGE TO OPTION AMENDMENT]EX-10.23

 Exhibit 10.23 

STERLING ULTIMATE PARENT CORP. 

LOAN FORGIVENESS AGREEMENT 

THIS LOAN FORGIVENESS AGREEMENT (the “Agreement”) is entered into as of [______], 2021, by and among Sterling Ultimate Parent
Corp. (the “Company”) and the individual set forth on the signature page hereto (the Employee”). 
 WHEREAS,
the Company previously extended a loan to the Employee in the principal amount set forth on the signature page hereto, pursuant to the terms and conditions of that certain Promissory Note, dated December 1, 2020 (the “Note”)
and, as security for the performance of the Employee’s obligations thereunder, the Employee contemporaneously entered into that certain Share Pledge Agreement, dated as of December 1, 2020 (the “Pledge Agreement” and,
together with the Note, the “Loan Documents”). Capitalized terms used but not defined herein shall have the meanings ascribed to such terms in the Note or, if not defined therein, in the Pledge Agreement; 

WHEREAS, pursuant to Section 1.2(c) of the Note, the Principal Amount, together with all accrued and unpaid interest thereon, shall be
forgiven upon the earlier to occur of (A) a Change in Control and (B) the first public filing of a registration statement with the SEC in connection with an initial Public Offering by the Company or any of its subsidiaries or any of their
respective successors, in either case of (A) or (B), that occurs prior to a Termination Event; 
 WHEREAS, the Company expects to file
its first public filing of a registration statement with the SEC in connection with an initial Public Offering by the Company [on or about [DATE], 2021]] and has determined to forgive the Principal Amount, together with all accrued but unpaid
interest thereon, (the “Outstanding Indebtedness”), effective as of the date hereof, which date, for the avoidance of doubt, is prior to the public filing of such registration statement, in accordance with the terms and conditions
of this Agreement. 
 NOW THEREFORE, for good and valuable consideration, the receipt and sufficiency of which is hereby agreed and
acknowledged, the parties hereto agree as follows: 
 1. Cancellation of Note and Pledge Agreement. Effective as of the date hereof,
the Note and Pledge Agreement are hereby terminated, cancelled, and of no further force and effect and the Outstanding Indebtedness and other obligations of the Employee under the Note shall be deemed forgiven, discharged, terminated, and released
(the “Note Cancellation”). In accordance with Section 1.3 of the Pledge Agreement, the Company shall mark the Note “Paid” and shall deliver the Note to the Employee concurrently with the execution of this Agreement.

 2. Withholding Tax Obligations; Accelerated Bonus Payment. 

(a) The parties hereto agree and acknowledge that the Note Cancellation constitutes a compensatory transaction and the amount of the
Outstanding Indebtedness forgiven shall be treated as imputed income to the Employee subject to withholding and other employment taxes imposed by applicable law. 

 (b) On the date hereof, the Company shall make a payment to the Employee (or, in its sole
discretion, directly to the applicable taxing authorities on behalf of the Employee) in an amount equal to [__]% of the Employee’s target bonus for 2021, to assist the Employee in the satisfaction of the Employee’s withholding tax
obligations in respect of the Note Cancellation (the “Accelerated Bonus Payment”). The Employee acknowledges and agrees that (i) the Accelerated Bonus Payment represents an acceleration of a portion of the 2021 annual bonus, if
any, to which the Employee is or may become entitled and (ii) to the extent the Accelerated Bonus Payment is not sufficient for the Employee to fully satisfy his withholding obligations with respect to the Note Cancellation and the Accelerated
Bonus Payment, the Employee shall within one (1) business day from the date hereof, pay to the Company, in cash, an amount equal to any shortfall. The Company acknowledges and agrees that the Accelerated Bonus Payment shall be deemed to have
been earned as of the date hereof and that there shall be no obligation by the Employee to repay any portion of the Accelerated Bonus Payment under any circumstance. 

(c) The Employee shall be solely responsible for the payment of all taxes imposed on the Employee relating to the Note Cancellation and the
Accelerated Bonus Payment. 
 3. Waivers; Amendments. None of the terms or provisions of this Agreement may be waived, altered,
modified or amended except by an instrument in writing executed by the parties hereto. No failure on the part of the Company to exercise, and no delay in exercising, any right, power or remedy under this Agreement, shall operate as a waiver of any
right, power or remedy, nor shall any single or partial exercise of any such right, power or remedy by the Company preclude any other or further exercise thereof or the exercise of any other right, power or remedy. 

4. Binding Effect, Successors and Assigns. This Agreement shall be binding upon and inure to the benefit of the parties hereto and their
respective successors, heirs and permitted assigns and nothing herein is intended or shall be construed to give any other person any right, remedy or claim under, to or in respect of this Agreement. The rights and obligations of this Agreement may
not be assigned in whole or in part by the parties hereto. 
 5. Law and Jurisdiction. This Agreement shall be governed by, and
construed in accordance with, the laws of the State of Delaware (without giving effect to any conflict of laws rules or principles that would cause the application of the laws of any other jurisdiction). The chancery courts of the State of Delaware
and the United State of America, in each case, located in the County of New Castle shall have exclusive jurisdiction to settle any dispute which may arise from or in connection with this Agreement. 

6. Counterparts. This Agreement may be executed via electronic transmission (e.g., “.pdf”) and in multiple counterparts, all
of which together will constitute a single instrument. 
 7. Entire Agreement. This Agreement constitutes the entire agreement between
the parties hereto, and supersedes all prior representations, agreement, and understandings (both written and oral), between the parties hereto with respect to the subject matter hereof. 

8. Section 409A. The payments described in this Agreement are intended to be exempt from Section 409A of the Internal Revenue Code
of 1986, as amended and the regulations promulgated thereunder (“Section 409A”) and this Agreement shall be interpreted to be exempt therefrom or, to the extent not exempt, in compliance therewith. 

[Signature Page Follows] 

 IN WITNESS WHEREOF, the parties hereto have entered into this Agreement as of the date set forth above. 

 

			
	COMPANY
	
	STERLING ULTIMATE PARENT CORP.
		
	By:	 	
                     
        

	Name:	 	
	Title:	 	

 [SIGNATURE PAGE TO LOAN
FORGIVENESS AGREEMENT] 

 
	
	EMPLOYEE
	
	  

	Name:
	
	Principal Amount on Note: $[___]

 [SIGNATURE PAGE TO LOAN
FORGIVENESS AGREEMENT]

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