Form of Performance-Based Restricted Stock Unit Grant Notice and Performance-Based Restricted Stock Unit Agreement

Capitalized terms not specifically defined in this Performance-Based Restricted Stock Unit Grant Notice (the “Grant Notice”) have the meanings given to them in the 2020 Equity Incentive Plan (as amended from time to time, the “Plan”) of PAE Incorporated (the “Company”).

The Company has granted to the participant listed below (“Participant”) the performance-based Restricted Stock Units described in this Grant Notice (the “PSUs”), subject to the terms and conditions of the Plan and the Performance-Based Restricted Stock Unit Agreement attached as Exhibit A (the “Agreement”), both of which are incorporated into this Grant Notice by reference.

By Participant’s signature below, Participant agrees to be bound by the terms of this Grant Notice, the Plan and the Agreement. Participant has reviewed the Plan, this Grant Notice and the Agreement in their entirety, has had an opportunity to obtain the advice of counsel prior to executing this Grant Notice and fully understands all provisions of the Plan, this Grant Notice and the Agreement. Participant hereby agrees to accept as binding, conclusive and final all decisions or interpretations of the Administrator upon any questions arising under the Plan, this Grant Notice or the Agreement.

1.1 Award of PSUs and Dividend Equivalents

(a) The Company has granted the PSUs to Participant effective as of the grant date set forth in the Grant Notice (the “Grant Date”). Each PSU represents the right to receive one Share, as set forth in this Agreement. Participant will have no right to the distribution of any Shares until the time (if ever) the PSUs have vested.

(b) The Company hereby grants to Participant, with respect to each PSU, a Dividend Equivalent for ordinary cash dividends paid to substantially all holders of outstanding Shares with a record date after the Grant Date and prior to the date the applicable PSU is settled, forfeited or otherwise expires. Each Dividend Equivalent entitles Participant to receive the equivalent value of any such ordinary cash dividends paid on a single Share; provided that, such value may be paid in the form of cash or Shares, as determined by the Company in its discretion. The Company will establish a separate Dividend Equivalent bookkeeping account (a “Dividend Equivalent Account”) for each Dividend Equivalent and credit the Dividend Equivalent Account (without interest) on the applicable dividend payment date with the amount of any such cash paid.

1.2 Incorporation of Terms of Plan. The PSUs are subject to the terms and conditions set forth in this Agreement and the Plan, which is incorporated herein by reference. In the event of any inconsistency between the Plan and this Agreement, the terms of the Plan will control.

1.3 Definitions. Capitalized terms not specifically defined in this Agreement have the meanings specified in the Grant Notice or, if not defined in the Grant Notice, in the Plan. When used in this Agreement or the Grant Notice, the following capitalized terms have the following meanings:

(a) "Good Reason” means (i) if Participant is a party to a written employment agreement or offer letter with the Company or any of its Subsidiaries in which the term “good reason” is defined, the meaning set forth in such employment agreement or offer letter, or (ii) if no such employment agreement or offer letter exists, the occurrence of any of the following without Participant’s prior written consent: (1) a material reduction in annual base salary or target annual cash bonus opportunity or (2) a relocation of Participant’s principal place of business of 50 miles or more, provided such relocation also increases Participant’s commute by at least 25 miles; provided however that, in order to constitute Good Reason pursuant to the preceding clauses (i) or (ii), Participant must provide written notice to the Company or its Subsidiary of Participant’s intent to resign for Good Reason within 45 days of the occurrence of the applicable event (each, a “Good Reason Event”) in order for Participant’s resignation for Good Reason to be effective hereunder. Upon receipt of such notice, the Company or its Subsidiary shall have 30 days (the “Good Reason Cure Period”) to rectify the Good Reason Event. If the Company or its Subsidiary fails to rectify the Good Reason Event prior to the expiration of the Good Reason Cure Period, then Participant may terminate employment within ten days following the expiration of the Good Reason Cure Period and such termination will be considered for Good Reason.

(b) “Retirement” means Participant’s Termination of Service other than for Cause after Participant’s attainment of age 65 with at least five consecutive years of service with the Company or its Subsidiaries.

1.4 Unsecured Promise. The PSUs and Dividend Equivalents will at all times prior to settlement represent an unsecured Company obligation payable only from the Company’s general assets.

2.1 Vesting; Forfeiture.

(a) Vesting. The PSUs will vest according to the vesting schedule in the Grant Notice. As soon as reasonably practicable after the completion of the Performance Period, but no later than 60 days following the completion of the Performance Period, the Administrator shall determine, in its sole discretion, the actual level of attainment of the Performance Goals for the Performance Period. On the basis of the Administrator’s determination, the number of PSUs that are eligible to vest shall be calculated, up to the Maximum Number of PSUs.

(b) Termination of Service. In the event of Participant’s Termination of Service for any reason, all unvested PSUs will immediately and automatically be cancelled and forfeited, except as provided in Section 2.1(c) and Article III or otherwise determined by the Administrator or provided in a binding written agreement between Participant and the Company. Dividend Equivalents (including any Dividend Equivalent Account balance) will vest or be forfeited, as applicable, upon the vesting or forfeiture of the PSU with respect to which the Dividend Equivalent (including the Dividend Equivalent Account) relates.

(c) Retirement, Death or Disability. In the event that Participant incurs a Termination of Service on account of Participant’s Retirement, death or Disability, then Participant will earn a pro-rata portion of Participant’s PSUs and Dividend Equivalents, subject to achievement of the Performance Goals for the Performance Period. Such pro-rata portion will be equal to the number of PSUs that would otherwise vest as of the end of the Performance Period, based on achievement of the Performance Goals, multiplied by a fraction, the numerator of which is the number of full calendar days during the Performance Period prior to Participant’s Termination of Service and the denominator of which is the total number of days in the Performance Period. Such pro-rata portion will become vested as of the Vesting Date.

(d) Termination for Cause. Notwithstanding anything to the contrary, any vesting references in this Agreement shall be deemed conditional and remain subject to Participant not being terminated by the Company for Cause at any time. If Participant has a Termination of Service for Cause, whether during or after the Performance Period, the PSUs, whether otherwise vested or unvested, will immediately and automatically be cancelled and forfeited.

2.2 Settlement

(a) The PSUs and Dividend Equivalents (including any Dividend Equivalent Account balance), that vest under Section 2.1(a) or (c), if any, will be paid between January 1, 2023 and March 15, 2023.

(b) If a Dividend Equivalent is paid in Shares, the number of Shares paid with respect to the Dividend Equivalent will equal the quotient, rounded down to the nearest whole Share, of the Dividend Equivalent Account balance divided by the Fair Market Value of a Share on the day immediately preceding the payment date.

3.1 Change in Control. If a Change in Control occurs during the Performance Period, the PSUs shall be treated as described in this Article III. Notwithstanding anything to the contrary, the Administrator may take such other actions with respect to the PSUs as it deems appropriate pursuant to the Plan.

3.2 Change in Control Amount. In lieu of measuring performance as of the end of the Performance Period, the Administrator shall calculate a “Change in Control Amount” as of the closing date of the Change in Control (the “Change in Control Date”) as follows: The number of PSUs to be included in the Change in Control Amount (if any) shall be based on the greater of (a) the actual number of PSUs that would be earned based on performance as compared to the Performance Goals as of the Change in Control Date, as determined by the Administrator in its sole discretion or (b) the Target Number of PSUs. Except as provided in Section 3.3(b) below, the Change in Control Amount attributable to the PSUs shall be converted to and payable in time-based units with respect to cash, Shares or other equity interests of the acquiring company or its parent, as determined by the Administrator, subject to the same time-based vesting schedule as the original PSUs.

3.3 Vesting and Settlement.

(a) If a Change in Control occurs during the Performance Period and the PSUs are assumed in accordance with Section 8.2(c) of the Plan, the following shall apply:

(b) If the PSUs are not assumed in accordance with 8.2(c) of the Plan, the Change in Control Amount shall become fully vested upon the Change in Control Date, and to the extent permitted by Section 409A of the Code and the Treasury Regulations thereunder (“Section 409A”), the Change in Control Amount shall be paid within 60 days following the Change in Control Date. The Administrator may determine that the aggregate Change in Control Amount attributable to the PSUs that vest under this subsection (b) shall be (1) converted to and payable in units with respect to shares or other equity interests of the acquiring company or its parent or (2) payable in cash based on the Fair Market Value of the Change in Control Amount as of the date preceding the Change in Control Date, in either case subject to the Company’s collection of all applicable withholding taxes.

(c) For the avoidance of doubt, if the Change in Control Date occurs after the end of the Performance Period but prior to settlement of the vested PSUs, the vested PSUs shall be settled in accordance with Section 2.1(a), and shall not be based on the Change in Control Amount.

(d) Notwithstanding anything in this Agreement to the contrary, to the extent that the PSUs constitute nonqualified deferred compensation subject to Section 409A of the Code and the Treasury Regulations thereunder (“Section 409A”), if (i) a Change in Control does not constitute a “change in control event” under Section 409A, or (ii) otherwise required by Section 409A, any amounts that vest pursuant to subsection (a)(ii), (a)(iii), (a)(iv) or (b) above shall be paid between January 1, 2023 and March 15, 2023.

4.1 Representation. Participant represents to the Company that Participant has reviewed with Participant’s own tax advisors the tax consequences of this Award and the transactions contemplated by the Grant Notice and this Agreement. Participant is relying solely on such advisors and not on any statements or representations of the Company or any of its agents.

4.2 Tax Withholding

(a) The Company has the right and option, but not the obligation, to treat Participant’s failure to provide timely payment in accordance with the Plan of any withholding tax arising in connection with the PSUs or Dividend Equivalents as Participant’s election to satisfy all or any portion of the withholding tax by requesting the Company retain Shares otherwise issuable under the Award.

(b) Participant acknowledges that Participant is ultimately liable and responsible for all taxes owed in connection with the PSUs and the Dividend Equivalents, regardless of any action the Company or any Subsidiary takes with respect to any tax withholding obligations that arise in connection with the PSUs or Dividend Equivalents. Neither the Company nor any Subsidiary makes any representation or undertaking regarding the treatment of any tax withholding in connection with the awarding, vesting or payment of the PSUs or the Dividend Equivalents or the subsequent sale of Shares. The Company and the Subsidiaries do not commit and are under no obligation to structure the PSUs or Dividend Equivalents to reduce or eliminate Participant’s tax liability.

4.3 Section 409A. This Agreement is intended to comply with the requirements of Section 409A. To the extent there is any ambiguity as to whether any provision of this Agreement would

otherwise contravene one or more applicable requirements or limitations of Section 409A, such provision shall be interpreted and applied in a manner that complies with the applicable requirements of Section 409A. Notwithstanding the other provisions hereof, (i) any reference to Participant’s Termination of Service or termination of employment shall mean Participant’s “separation from service,” as such term is defined under Section 409A (“Separation from Service”), (ii) each issuance of cash or Shares under this Agreement shall be treated as a separate payment, (iii) if Participant is a “specified employee” under Section 409A and if payment of any amount under this Agreement is required to be delayed for a period of six months after Separation from Service pursuant to Section 409A, payment of such amount shall be delayed as required by Section 409A and shall be paid within ten days after the end of the six-month period or Participant’s death, if earlier, and (iv) in no event may Participant, directly or indirectly, designate the calendar year of a payment.

5.1 Adjustments. Participant acknowledges that the PSUs, the Shares subject to the PSUs and the Dividend Equivalents are subject to adjustment, modification and termination in certain events as provided in this Agreement and the Plan.

5..2  Notices. Any notice to be given under the terms of this Agreement to the Company must be in writing and addressed to the Company in care of the Company’s Secretary at the Company’s principal office or the Secretary’s then-current email address or facsimile number. Any notice to be given under the terms of this Agreement to Participant must be in writing and addressed to Participant at Participant’s last known mailing address, email address or facsimile number in the Company’s personnel files. By a notice given pursuant to this Section, either party may designate a different address for notices to be given to that party. Any notice will be deemed duly given when actually received, when sent by email, when sent by certified mail (return receipt requested) and deposited with postage prepaid in a post office or branch post office regularly maintained by the United States Postal Service, when delivered by a nationally recognized express shipping company or upon receipt of a facsimile transmission confirmation. Notwithstanding the foregoing, the Company may, in its sole discretion, decide to deliver any documents related to the PSUs by electronic means. By signing the Grant Notice, Participant consents to receive all documents related to the PSUs by electronic delivery and agrees to participate in the Plan through an on-line or electronic system established and maintained by the Company or a third party designated by the Company.

5.3 Company Policies. The PSUs, any cash or Shares issued pursuant to this Agreement, and any cash proceeds realized from the sale of any Shares issued pursuant to this Agreement are subject to forfeiture or repayment to the Company pursuant to any “clawback” policy that the Company may have in place from time to time and are subject to any share trading policies and other policies that may be implemented by the Company from time to time.

5.4 Titles. Titles are provided herein for convenience only and are not to serve as a basis for interpretation or construction of this Agreement.

5.5 Conformity to Securities Laws.. Participant acknowledges that the Plan, the Grant Notice and this Agreement are intended to conform to the extent necessary with all Applicable Laws and, to the extent Applicable Laws permit, will be deemed amended as necessary to conform to Applicable Laws

5.6 Successors and Assigns. The Company may assign any of its rights under this Agreement to single or multiple assignees, and this Agreement will inure to the benefit of the successors and assigns of the Company. Subject to the restrictions on transfer set forth in the Plan, this Agreement will be binding upon and inure to the benefit of the heirs, legatees, legal representatives, successors and assigns of the parties hereto.

5.7 Limitations Applicable to Section 16 Persons. Notwithstanding any other provision of the Plan or this Agreement, if Participant is subject to Section 16 of the Exchange Act, the Plan, the Grant Notice, this Agreement, the PSUs and the Dividend Equivalents will be subject to any additional limitations set forth in any applicable exemptive rule under Section 16 of the Exchange Act (including any amendment to Rule 16b-3) that are requirements for the application of such exemptive rule. To the extent Applicable Laws permit, this Agreement will be deemed amended as necessary to conform to such applicable exemptive rule.

5.8 Entire Agreement. The Plan, the Grant Notice and this Agreement (including any exhibit hereto) constitute the entire agreement of the parties and supersede in their entirety all prior undertakings and agreements of the Company and Participant with respect to the subject matter hereof. In the event there is any express conflict between this Agreement and the terms of the Plan, the terms of the Plan shall govern.

5.9 Amendment. The terms and conditions of this Agreement and the RSUs may be amended by the Administrator as permitted by the Plan.

5.10 Agreement Severable. In the event that any provision of the Grant Notice or this Agreement is held illegal or invalid, the provision will be severable from, and the illegality or invalidity of the provision will not be construed to have any effect on, the remaining provisions of the Grant Notice or this Agreement.

5.11. Limitation on Participant’s Rights. Participation in the Plan confers no rights or interests other than as herein provided. This Agreement creates only a contractual obligation on the part of the Company as to amounts payable and may not be construed as creating a trust. Neither the Plan nor any underlying program, in and of itself, has any assets. Participant will have only the rights of a general unsecured creditor of the Company with respect to amounts credited and benefits payable, if any, with respect to the PSUs and Dividend Equivalents, and rights no greater than the right to receive the Shares or cash as a general unsecured creditor with respect to the PSUs and Dividend Equivalents, as and when settled pursuant to the terms of this Agreement.

5.12. Not a Contract of Employment. Nothing in the Plan, the Grant Notice or this Agreement confers upon Participant any right to continue in the employ or service of the Company or any Subsidiary or interferes with or restricts in any way the rights of the Company and its Subsidiaries, which rights are hereby expressly reserved, to discharge or terminate the services of Participant at any time for any reason whatsoever, with or without Cause, except to the extent expressly provided otherwise in a written agreement between the Company or a Subsidiary and Participant.

5.13 Counterparts. The Grant Notice may be executed in one or more counterparts, including by way of any electronic signature, subject to Applicable Law, each of which will be deemed an original and all of which together will constitute one instrument.