Document:

EX-4.7

 Exhibit 4.7 
  

FORM OF STOCKHOLDERS AGREEMENT 

DATED AS OF , 2018 

AMONG 
 CALIBURN
INTERNATIONAL CORPORATION 
 AND 

THE OTHER PARTIES HERETO 

 FORM OF STOCKHOLDERS AGREEMENT 

This Stockholders Agreement is entered into as of             , 2018 by and among
Caliburn International Corporation, a Delaware corporation (the “Company”), and each of the other parties identified on the signature pages hereto (the “Investor Parties”). 

BACKGROUND: 
 WHEREAS, the
Company is currently contemplating an underwritten initial public offering (“IPO”) of shares of its Class A Common Stock (as defined below); and 

WHEREAS, in connection with, and effective upon, the date of completion of the IPO (the “Closing Date”), the Company and the
Investor Parties wish to set forth certain understandings between such parties, including with respect to certain governance matters. 

NOW, THEREFORE, the parties agree as follows: 

ARTICLE I. 
 INTRODUCTORY
MATTERS 
 1.1 Defined Terms. In addition to the terms defined elsewhere herein, the following terms have the following meanings
when used herein with initial capital letters: 
 “Affiliate” has the meaning set forth in
Rule 12b-2 promulgated under the Exchange Act, as in effect on the date hereof. 

“Agreement” means this Stockholders Agreement, as the same may be amended, supplemented, restated or otherwise modified from
time to time in accordance with the terms hereof. 
 “beneficially own” has the meaning set forth in Rule 13d-3 promulgated under the Exchange Act. 
 “Board” means the board of
directors of the Company. 
 “Business Day” means a day other than a Saturday, Sunday, federal or New York State holiday or
other day on which commercial banks in New York City are authorized or required by law to close. 
 “Certificate” means the
Amended and Restated Certificate of Incorporation of the Company. 
 “Closing Date” has the meaning set forth in the
Background. 
 “Company” has the meaning set forth in the Preamble. 

“Class A Common Stock” means the shares of Class A common stock, par value $0.01 per share, of the
Company, and any other capital stock of the Company into which such stock is reclassified or reconstituted and any other common stock of the Company. 

“Class B Common Stock” means the shares of Class B common stock, par value $0.01 per share, of the
Company, and any other capital stock of the Company into which such stock is reclassified or reconstituted and any other common stock of the Company. 

“Common Stock” means the Class A Common Stock together with the Class B Common Stock. 

“Common Units” means membership interests in Holdings, authorized and issued under the LLC Agreement and constituting
“Common Units” as defined in the LLC Agreement as in effect as of the effective time of the Certificate. 

 “Company Shares” means (i) all shares of Common Stock that are not
then subject to vesting (including shares that were at one time subject to vesting to the extent they have vested), (ii) all shares of Common Stock issuable upon exercise, conversion or exchange of any option, warrant or convertible security
that are not then subject to vesting (including shares that were at one time subject to vesting to the extent they have vested) (without double counting shares of Class A Common Stock issuable upon redemption of Common Units) and (iii) all
shares of Common Stock directly or indirectly issued or issuable with respect to the securities referred to in clauses (i) or (ii) above by way of unit or stock dividend or unit or stock split, or in connection with a combination of units
or shares, recapitalization, merger, consolidation or other reorganization. 
 “Control” (including its correlative
meanings, “Controlled by” and “under common Control with”) means possession, directly or indirectly, of the power to direct or cause the direction of management or policies (whether through ownership of securities
or partnership or other ownership interests, by contract or otherwise) of a Person. 
 “Covered Person” means (i) each
DC Capital Entity, in each case in his, her or its capacity as such, and each such Person’s successors, heirs, estates or legal representative, (ii) any Affiliate, in his, her or its capacity as such, of each DC Capital Entity, in his, her
or its capacity as such and (iii) any Affiliate, officer, director, shareholder, partner, member, employee representative or agent of any of the foregoing, in each case in clauses (i) or (ii) whether or not such Person continues to
have the applicable status referred to in such clauses. 
 “DC Capital Designee” has the meaning set forth in
Section 2.1(c). 
 “DC Capital Group” means the entities listed on the signature pages hereto under the heading
“DC Capital Group” on the signature pages hereto. 
 “DC Capital Entities” means the entities comprising the DC
Capital Group, their Affiliates and their respective successors and Permitted Assigns. 
 “Director” means any member of
the Board. 
 “Exchange Act” means the Securities Exchange Act of 1934, as amended, and the rules and regulations
promulgated thereunder, as the same may be amended from time to time. 
 “Governmental Authority” means any nation or
government, any state or other political subdivision thereof, and any entity exercising executive, legislative, judicial, regulatory or administrative functions of or pertaining to government. 

“Holdings” means Caliburn Holdings, LLC, a Delaware limited liability company, or any successor entity thereto. 

“Investor Parties” has the meaning set forth in the Preamble. 

“IPO” has the meaning set forth in the Background. 

“Law” means any statute, law, regulation, ordinance, rule, injunction, order, decree, governmental approval, directive,
requirement, or other governmental restriction or any similar form of decision of, or determination by, or any interpretation or administration of any of the foregoing by, any Governmental Authority. 

“LLC Agreement” means the Third Amended and Restated Limited Liability Company Agreement of Holdings, dated as of
            , 2018, as such agreement may be further amended, restated, amended and restated, supplemented or otherwise modified from time to time. 

“Losses” means any loss, liability, claim, charge, action, suit, proceeding, assessed interest, penalty, damage, tax, expense
and causes of action of any nature whatsoever. 

 “Permitted Assigns” means with respect to a DC Capital Entity, a Transferee
of shares of Common Stock or Holding Units that agrees to become party to, and to be bound to the same extent as its Transferor by the terms of, this Agreement. 

“Person” means an individual, a partnership, a corporation, a limited liability company, an association, a joint stock
company, a trust, a joint venture, an unincorporated organization, or other form of business organization, whether or not regarded as a legal entity under applicable Law, or any Governmental Authority or any department, agency or political
subdivision thereof. 
 “Stock Exchange” means the New York Stock Exchange or other national securities exchange or
interdealer quotation system on which the Class A Common Stock is at any time listed or quoted. 
 “Subsidiary” means,
with respect to any Person, any corporation, limited liability company, partnership, association or other business entity of which: (i) if a corporation, a majority of the total voting power of shares of stock entitled (without regard to the
occurrence of any contingency) to vote in the election of directors, representatives or trustees thereof is at the time owned or Controlled, directly or indirectly, by that Person or one or more of the other Subsidiaries of that Person or a
combination thereof; or (ii) if a limited liability company, partnership, association or other business entity, a majority of the total voting power of stock (or equivalent ownership interest) of the limited liability company, partnership,
association or other business entity is at the time owned or Controlled, directly or indirectly, by any Person or one or more Subsidiaries of that Person or a combination thereof. For purposes hereof, a Person or Persons shall be deemed to have
a majority ownership interest in a limited liability company, partnership, association or other business entity if such Person or Persons shall be allocated a majority of limited liability company, partnership, association or other business entity
gains or losses or shall be or Control the managing member, managing director or other governing body or general partner of such limited liability company, partnership, association or other business entity. 

“Third-Party Claim” means any (i) claim brought by a Person other than a Covered Person or the Company or any of its
Subsidiaries and (ii) any derivative claim brought in the name of the Company or any of its Subsidiaries that is initiated by any Person other than a Covered Person. 

“Total Number of Directors” means the total number of directors comprising the Board. 

“Transfer” (including its correlative meanings, “Transferor”, “Transferee” and
“Transferred”) shall mean, with respect to any security, directly or indirectly, to sell, contract to sell, give, assign, hypothecate, pledge, encumber, grant a security interest in, offer, sell any option or contract to purchase,
purchase any option or contract to sell, grant any option, right or warrant to purchase, lend or otherwise transfer or dispose of any economic, voting or other rights in or to such security. When used as a noun, “Transfer”
shall have such correlative meaning as the context may require. 
 1.2 Construction. The language used in this Agreement will be
deemed to be the language chosen by the parties to express their mutual intent, and no rule of strict construction will be applied against any party. Unless the context otherwise requires: (a) “or” is disjunctive but
not exclusive, (b) words in the singular include the plural, and in the plural include the singular, and (c) the words “hereof”, “herein”, and “hereunder” and words of similar import when
used in this Agreement refer to this Agreement as a whole and not to any particular provision of this Agreement, and Section references are to this Agreement unless otherwise specified. 

ARTICLE II. 
 CORPORATE
GOVERNANCE MATTERS 
 2.1 Election of Directors 

(a) As of the Closing Date, subject to any provision in the Amended and Restated Certificate of Incorporation (the “Certificate”)
enabling the Board to change the total number of authorized directors on the Board, the Board shall be comprised of eleven (11) directors. As of the Closing Date, five (5) of the directors of the Board shall be deemed to have been
designated by the DC Capital Group. The foregoing directors shall be divided into three classes of directors, each of whose members shall serve for staggered three-year terms as follows: 

(i) the class I directors shall initially include no DC Capital Designees (as defined in Section 2.1(c) below). 

 (ii) the class II directors shall initially include two DC Capital
Designees. 
 (iii) the class III directors shall initially include three DC Capital Designees. 

The initial term of the class I directors shall expire immediately following the Company’s 2019 annual meeting of stockholders at which
directors are elected. The initial term of the class II directors shall expire immediately following the Company’s 2020 annual meeting of stockholders at which directors are elected. The initial term of the class III directors shall expire
immediately following the Company’s 2021 annual meeting at which directors are elected. 
 (b) Following the Closing Date, the DC
Capital Group shall have the right, but not the obligation, to nominate to the Board a number of designees equal to at least: (i) 40% of the Total Number of Directors, in the event that the DC Capital Entities collectively beneficially own 40%
or more, but less than 50%, of the outstanding shares of Common Stock; (ii) 30% of the Total Number of Directors, in the event that the DC Capital Entities collectively beneficially own 30% or more, but less than 40%, of the outstanding shares
of Common Stock; (iii) 20% of the Total Number of Directors, in the event that the DC Capital Entities collectively beneficially own 20% or more, but less than 30%, of the outstanding shares of Common Stock; and (iv) 10% of the Total Number of
Directors, in the event that the DC Capital Entities collectively beneficially own 5% or more, but less than 20%, of the outstanding shares of Common Stock. For purposes of calculating the number of directors that the DC Capital Group is
entitled to designate pursuant to the immediately preceding sentence, any fractional amounts shall automatically be rounded up to the nearest whole number (e.g., one and one quarter (11/4) Directors shall equate to two (2) Directors) and any
such calculations shall be made after taking into account any increase in the Total Number of Directors. 
 (c) In the event that the DC
Capital Group has nominated less than the total number of designees, the DC Capital Group shall be entitled to nominate pursuant to Section 2.1(b), the DC Capital Group shall have the right, at any time, to nominate such additional designees to
which it is entitled, in which case, the Company and the Directors shall take all necessary corporate action, to the fullest extent permitted by applicable law (including with respect to fiduciary duties under Delaware law), the Stock Exchange rules
and the Certificate, to (x) enable the DC Capital Group to nominate and effect the election or appointment of such additional individuals and (y) to designate such additional individuals nominated by the DC Capital Group to fill such
newly-created vacancies or to fill any other existing vacancies. Each such person whom the DC Capital Group shall actually nominate pursuant to this Section 2.1 and who is thereafter elected to the Board to serve as a Director shall be
referred to herein as a “DC Capital Designee”. 
 (d) In the event that a vacancy is created at any time by the death,
retirement or resignation of any Director designated pursuant to this Section 2.1, the remaining Directors and the Company shall, to the fullest extent permitted by applicable law (including with respect to fiduciary duties under Delaware law)
and the Stock Exchange rules, cause the vacancy created thereby to be filled by a new designee of the DC Capital Group as soon as possible (provided that DC Capital Group has such right to nominate the new designee pursuant to this
Section 2.1), and the Company hereby agrees to take, to the fullest extent permitted by applicable law (including with respect to fiduciary duties under Delaware law) and the Stock Exchange rules, at any time and from time to time, all actions
necessary to accomplish the same. 
 (e) The Company agrees, to the fullest extent permitted by applicable law (including with respect to
fiduciary duties under Delaware law) and the Stock Exchange rules, to cause the nominating and corporate governance committee of the Board and the Board to include in the slate of nominees recommended by the Board for election at any meeting of
stockholders called for the purpose of electing directors the persons designated pursuant to this Section 2.1 and to use its best efforts to cause the election of each such designee to the Board, including nominating each such individual to be
elected as a Director as provided herein, recommending such individual’s election and soliciting proxies or consents in favor thereof. 

 (f) Upon any decrease in the number of directors that the DC Capital Group is entitled to
designate for nomination to the Board, and a resulting decrease in the number of DC Capital Designees on the Board, the remaining DC Capital Designees will be, to the extent possible, evenly distributed among all classes of directors with such
designees first being assigned to classes with the longest remaining terms.
 (g) The Company shall pay or reimburse the reasonable,
documented out-of-pocket expenses actually incurred by the DC Capital Designees in connection with their service on the Board (and any committee thereof) or in
connection with their service on the board or other similar governing body of any Subsidiary of the Company (and any committee thereof). 

(h) An individual designated by the DC Capital Group for election (including pursuant to Sections 2.1(a), 2.1(b), 2.1(c) and 2.1(d)) as a
Director shall comply with the requirements of the charter of the nominating and corporate governance committee of the Board, the Company’s corporate governance guidelines and the Stock Exchange rules. Notwithstanding anything to the
contrary in this Section 2.1, in the event that the Board determines in good faith, after consultation with outside legal counsel, that its nomination, appointment or election of a particular DC Capital Designee pursuant to this
Section 2.1 would constitute a breach of its fiduciary duties to the Company’s stockholders or does not otherwise comply with any requirements of the charter of the nominating and corporate governance committee of the Board, the
Company’s corporate governance guidelines or the Stock Exchange rules (provided that any such determination with respect to any DC Capital Designee pursuant to this Section 2.1 shall be made no later than sixty (60) days after the
individual’s compliance with the first sentence of this Section 2.1(i)), then the Board shall inform the DC Capital Group of such determination in writing and explain in reasonable detail the basis for such determination and shall
designate another individual designated for nomination, election or appointment to the Board by the DC Capital Group (subject in each case to this Section 2.1(i)), and the Board and the Company shall take all of the actions required by this
Section 2.1 with respect to the election of such substitute DC Capital Designee. It is hereby acknowledged and agreed that the fact that a particular DC Capital Designee is an Affiliate, director, professional, partner, member, manager,
employee or agent of the DC Capital Group or is not an independent director shall not in and of itself constitute an acceptable basis for such determination by the Board. 

2.2 Confidentiality. Each DC Capital Designee is permitted to disclose to the DC Capital Entities information about the Company and
its Affiliates he or she receives as a result of being a Director, for the purposes of the DC Capital Entities’ investment in the Company or its Subsidiaries. 

ARTICLE III.
 INFORMATION 

3.1 Books and Records; Access. The Company shall, and shall cause its Subsidiaries to, keep proper books, records and accounts, in
which full and correct entries shall be made of all financial transactions and the assets and business of the Company and each of its Subsidiaries in accordance with generally accepted accounting principles. The Company shall, and shall cause
its Subsidiaries to, permit the DC Capital Entities and their respective designated representatives, at reasonable times and upon reasonable prior notice to the Company, to review the books and records of the Company or any of such Subsidiaries and
to discuss the affairs, finances and condition of the Company or any of such Subsidiaries with the officers of the Company or any such Subsidiary; provided, however, that the Company shall not be required to disclose any
privileged information of the Company so long as the Company has used its best efforts to enter into an arrangement pursuant to which it may provide such information to the DC Capital Entities without the loss of any such privilege. 

 3.2 Certain Reports. The Company shall deliver or cause to be delivered to the
DC Capital Entities, at their request: 
 (a) to the extent otherwise prepared by the Company, operating and capital expenditure budgets and
periodic information packages relating to the operations and cash flows of the Company and its Subsidiaries; and 
 (b) such other reports
and information as may be reasonably requested by the DC Capital Entities; 
 provided, however, that the Company shall not be required
to disclose any privileged information of the Company so long as the Company has used its best efforts to enter into an arrangement pursuant to which it may provide such information to the DC Capital Entities without the loss of any such privilege.

 ARTICLE IV. 

INDEMNIFICATION 
 4.1
Indemnification. (a) To the fullest extent permitted by law, each of the Company and Holdings, jointly and severally, shall indemnify, hold harmless and defend each Covered Person from and against any Losses (other than for taxes based
on fees or other compensation received by such Covered Person from the Company or its Subsidiaries), expenses (including reasonable attorneys’ fees and expenses), judgments, fines, penalties, excise taxes and other amounts which may be imposed
on, asserted against, paid in settlement, reasonably incurred or suffered by such Covered Person or any of them, as a party or otherwise, before or after the date of this Agreement (collectively, the “Indemnified Liabilities”), in
connection with any threatened, pending or completed Third-Party Claim arising directly or indirectly out of or in connection with a DC Capital Entity’s or their other Covered Persons’ investment in, or actual, alleged or deemed control or
ability to influence, the Company or any of its Subsidiaries if the Covered Person’s conduct was in good faith and to the extent such Losses did not arise out of a breach by such Covered Person or its Affiliates of this Agreement or the LLC
Agreement; and, if the Covered Person is a director, officer or employee of the Company or Holdings (or an Affiliate controlled by, or a successor, heir, estate or legal representative or a director, officer or employee of the Company or Holdings),
the Covered Person acted in good faith and reasonably believed (or, if the Covered Person is a successor, heir, or estate of, a director, officer or employee of the Company or Holdings, then such director, officer or employee of the Company or
Holdings, as applicable, acted in good faith and reasonably believed) that his, her or its conduct was in, or not opposed to, the best interest of the Company and Holdings and, with respect to any criminal action or proceeding, had no reasonable
cause to believe that his or her conduct was unlawful, and did not include any transaction from which such Covered Person derived an improper personal benefit. The termination of any Third-Party Claim by judgment, order, settlement, conviction, or
upon a plea of nolo contendere or its equivalent, shall not, of itself, create a presumption that the person did not act in good faith and in a manner which such Person reasonably believed to be in or not opposed to the best interests of the
Company, and, with respect to any criminal action or Proceeding, had reasonable cause to believe that such Person’s conduct was unlawful. If and to the extent that the foregoing indemnification is unavailable or unenforceable for any reason,
each of the Company and Holdings hereby agrees to make the maximum contribution to the payment and satisfaction of each of the Indemnified Liabilities which is permissible under applicable law. The rights of any Covered Person to indemnification and
contribution hereunder will be in addition to any other rights any such Person may have under any other agreement or instrument to which such Covered Person is or becomes a party or is otherwise becomes the beneficiary or under law or regulation or
under the organizational documents of the Company or, any of its Subsidiaries and shall extend to such Covered Person’s successors and assigns. The Company and Holdings shall not be liable for amounts paid in settlement of any action effected
without their written consent (which consent shall not be unreasonably withheld), but if any action is settled with written consent of the Company and Holdings and such settlement provides for a full and final release of all claims asserted against
the Covered Person or if there is a final judgment against a Covered Person in any such action, each of the Company and Holdings jointly and severally agrees to indemnify and hold harmless the Covered Person to the extent provided above from and
against any Losses by reason of such settlement or judgment. In addition, the Company and Holdings shall not be required to indemnify a Covered Person for any disgorgement of profits made from the purchase or sale by such Covered Person of
securities of the Company pursuant to the provisions of Section 16(b) of the Exchange Act, or to indemnify or advance expenses to a Covered Person in any circumstance where such indemnification has been determined to be prohibited by law by a
final (not interlocutory) judgment or other adjudication of a court or arbitration or administrative body of competent jurisdiction as to which there is no further right or option of appeal or the time within which an appeal must be filed has
expired without such filing. Notwithstanding anything herein to the contrary, each of the Covered Persons shall be a third party beneficiary of the rights conferred to such Covered Persons in this Section 4.1. This Section 4.1 shall
survive any termination of this Agreement. 

 (b) To the extent provided in this Section 4.2, the Company and Holdings hereby agree
that they are the indemnitors of first resort (i.e., their obligations to any Covered Person under this Agreement are primary and any obligation of any DC Capital Entity (or any Affiliate thereof) to provide advancement or indemnification for the
same Losses (including all interest, assessment and other charges paid or payable in connection with or in respect of such Losses) incurred by a Covered Person are secondary), and if any DC Capital Entity (or any Affiliate thereof) pays or causes to
be paid, for any reason, any amounts otherwise indemnifiable hereunder or under any other indemnification agreement (whether pursuant to contract, bylaws or charter) with any Covered Person, then (i) such DC Capital Entity (or such Affiliate,
as the case may be) shall be fully subrogated to all rights of the Covered Person with respect to the payments actually made and (ii) the Company shall reimburse such DC Capital Entity (or such other Affiliate) for the payments actually made.
The Company and Holdings hereby unconditionally and irrevocably waive, relinquish and release (and covenant and agree not to exercise, and to cause each Affiliate of the Company and Holdings not to exercise), any claims or rights that the Company or
Holdings may now have or hereafter acquire against any Covered Person (in any capacity) that arise from or relate to the existence, payment, performance or enforcement of the Company’s or Holdings’ obligations under this Agreement or under
any indemnification obligation (whether pursuant to any other contract, any organizational document or otherwise), including any right of subrogation, reimbursement, exoneration, contribution or indemnification and any right to participate in any
claim or remedy of any Covered Person against any Covered Person, whether such claim, remedy or right arises in equity or under contract, law or otherwise, including any right to claim, take or receive from any Covered Person, directly or
indirectly, in cash or other property or by set-off or in any other manner, any payment or security or other credit support on account of such claim, remedy or right. 

ARTICLE V. 
 GENERAL
PROVISIONS 
 5.1 Termination. This Agreement shall terminate on the earlier to occur of (i) such time as the DC Capital
Group is no longer entitled to nominate a Director pursuant to Section 2.1 and (ii) upon the delivery of a written notice by the DC Capital Group to the Company requesting that this Agreement terminate. 

5.2 Notices. Any notice provided for in this Agreement shall be in writing and shall be either personally delivered, or mailed
first class mail (postage prepaid) or sent by reputable overnight courier service (charges prepaid) to the Company at the address set forth below and to any other recipient at the address indicated on the Company’s records, or at such address
or to the attention of such other Person as the recipient party has specified by prior written notice to the sending party. Notices will be deemed to have been given hereunder when sent by facsimile (receipt confirmed) delivered personally,
five (5) days after deposit in the U.S. mail and one (1) day after deposit with a reputable overnight courier service. 
 The
Company’s address is: 
 Caliburn International Corporation 

10701 Parkridge Boulevard, Suite 200 

Reston, Virginia 20191 

Attention: Chief Executive Officer 

Fax: 703-288-5468 

with a copy (not constituting notice) to: 

White & Case LLP 
 1221
Avenue of the Americas 
 New York, New York 10017 

Attention: Colin Diamond, Esq.; Holt Goddard, Esq. 

Fax: (212) 354-8113 

 The DC Capital Entities’ address is: 

10701 Parkridge Boulevard, Suite 200 

Reston, Virginia 20191 

Attention: Thomas J. Campbell 

Fax: (202) 737-5220 

with a copy (not constituting notice) to: 

White & Case LLP 
 1221
Avenue of the Americas 
 New York, New York 10017 

Attention: Colin Diamond, Esq.; Holt Goddard, Esq. 

Fax: (212) 354-8113 

5.3 Amendment; Waiver. This Agreement may be amended, supplemented or otherwise modified only by a written instrument executed by
the Company and the other parties hereto. Neither the failure nor delay on the part of any party hereto to exercise any right, remedy, power or privilege under this Agreement shall operate as a waiver thereof, nor shall any single or partial
exercise of any right, remedy, power or privilege preclude any other or further exercise of the same or of any other right, remedy, power or privilege, nor shall any waiver of any right, remedy, power or privilege with respect to any occurrence be
construed as a waiver of such right, remedy, power or privilege with respect to any other occurrence. No waiver shall be effective unless it is in writing and is signed by the party asserted to have granted such waiver. 

5.4 Further Assurances. The parties hereto will sign such further documents, cause such meetings to be held, resolutions passed,
exercise their votes and do and perform and cause to be done such further acts and things necessary, proper or advisable in order to give full effect to this Agreement and every provision hereof. To the fullest extent permitted by law, the
Company shall not directly or indirectly take any action that is intended to, or would reasonably be expected to result in, any DC Capital Entity being deprived of the rights contemplated by this Agreement. 

5.5 Assignment. This Agreement will inure to the benefit of and be binding on the parties hereto and their respective successors
and Permitted Assigns. This Agreement may not be assigned without the express prior written consent of the other parties hereto, and any attempted assignment, without such consents, will be null and
void; provided, however, that each DC Capital Entity shall be entitled to assign, in whole or in part, to any of its Permitted Assigns without such prior written consent any of its rights hereunder. 

5.6 Third Parties. This Agreement does not create any rights, claims or benefits inuring to any person that is not a party hereto
nor create or establish any third party beneficiary hereto. 
 5.7 Governing Law. This Agreement shall be governed by and
construed in accordance with the laws of the State of Delaware, without regard to principles of conflicts of laws thereof. 
 5.8
Jurisdiction; Waiver of Jury Trial. In any judicial proceeding involving any dispute, controversy or claim arising out of or relating to this Agreement, each of the parties unconditionally accepts the jurisdiction and venue of or, if the
Court of Chancery does not have subject matter jurisdiction over this matter, the Superior Court of the State of Delaware (Complex Commercial Division), or if jurisdiction over the matter is vested exclusively in federal courts, the United States
District Court for the District of Delaware, and the appellate courts to which orders and judgments thereof may be appealed. EACH OF THE PARTIES HEREBY WAIVES TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW TRIAL BY JURY IN ANY JUDICIAL
PROCEEDING INVOLVING ANY DISPUTE, CONTROVERSY OR CLAIM ARISING OUT OF OR RELATING TO THIS AGREEMENT. 
 5.9 Specific
Performance. Each party hereto acknowledges and agrees that in the event of any breach of this Agreement by any of them, the other parties hereto would be irreparably harmed and could not be made whole by monetary damages. Each party
accordingly agrees to waive the defense in any action for specific performance that a remedy at law would be adequate and that the parties, in addition to any other remedy to which they may be entitled at law or in equity, shall be entitled to
specific performance of this Agreement without the posting of bond. 

 5.10 Entire Agreement. This Agreement sets forth the entire understanding of the
parties hereto with respect to the subject matter hereof. There are no agreements, representations, warranties, covenants or understandings with respect to the subject matter hereof or thereof other than those expressly set forth herein and
therein. This Agreement supersedes all other prior agreements and understandings between the parties with respect to such subject matter. 

5.11 Severability. If any provision of this Agreement, or the application of such provision to any Person or circumstance or in any
jurisdiction, shall be held to be invalid or unenforceable to any extent, (i) the remainder of this Agreement shall not be affected thereby, and each other provision hereof shall be valid and enforceable to the fullest extent permitted by law,
(ii) as to such Person or circumstance or in such jurisdiction such provision shall be reformed to be valid and enforceable to the fullest extent permitted by law and (iii) the application of such provision to other Persons or
circumstances or in other jurisdictions shall not be affected thereby. 
 5.12 Table of Contents, Headings and Captions. The
table of contents, headings, subheadings and captions contained in this Agreement are included for convenience of reference only, and in no way define, limit or describe the scope of this Agreement or the intent of any provision hereof. 

5.13 Grant of Consent. Any vote, consent or approval of the DC Capital Group or a DC Capital Entity hereunder shall be deemed to be
given with respect to such entities or entity if such vote, consent or approval is given by members of such entities or entity having a pecuniary interest in a majority of the shares of Common Stock over which all members of such entities or entity
then have a pecuniary interest. 
 5.14 Counterparts. This Agreement and any amendment hereto may be signed in any number of
separate counterparts, each of which shall be deemed an original, but all of which taken together shall constitute one Agreement (or amendment, as applicable). 

5.15 Effectiveness. This Agreement shall become effective upon the Closing Date. 

5.16 No Recourse. This Agreement may only be enforced against, and any claims or cause of action that may be based upon, arise out
of or relate to this Agreement, or the negotiation, execution or performance of this Agreement may only be made against the entities that are expressly identified as parties hereto and no past, present or future Affiliate, director, officer,
employee, incorporator, member, manager, partner, stockholder, agent, attorney or representative of any party hereto shall have any liability for any obligations or liabilities of the parties to this Agreement or for any claim based on, in respect
of, or by reason of, the transactions contemplated hereby. 
 5.17 Restrictions on Other Agreements. The parties to this
Agreement shall not, and shall cause their respective Affiliates not to, grant any proxy or enter into or agree to be bound by any voting trust, agreement or arrangement of any kind with any Person with respect to its Company Shares if and to the
extent the terms thereof conflict with the provisions of this Agreement (whether or not such proxy, voting trust, agreements or arrangements are with other holders of Company Shares that are not parties to this Agreement or otherwise). 

[Remainder of Page Intentionally Left Blank] 

 IN WITNESS WHEREOF, the parties hereto have executed this Stockholders Agreement on the day
and year first above written. 
  

	
	COMPANY
	
	CALIBURN INTERNATIONAL CORPORATION
	
	By:                                     
                                
	Name:
	Title:

			
	
	DC CAPITAL GROUP
	
	[JANUS FUND]
	
	By:
		
	By:	 	  

		 	Name:
		 	Title:
	
	[GP]
	
	By:
		
	By:	 	  

		 	Name:
		 	Title:
	
	DC CAPITAL PARTNERS FUND II, L.P.
	
	By:
		
	By:	 	  

		 	Name:
		 	Title:
	
	MICHAEL BAKER INTERNATIONAL, LLC
		
	 By:
	 	
		
	 By:
	 	  

		 	Name:
		 	 Title:

	
	 GLADIATOR OPCO, LLC

		
	 By:
	 	
		
	 By:
	 	  

		 	Name:
		 	 Title:EX-10.1

 Exhibit 10.1 

FORM OF TAX RECEIVABLE AGREEMENT 

among 
 CALIBURN INTERNATIONAL
CORPORATION 
 and 
 THE PERSONS
NAMED HEREIN 
 Dated as of [November        ], 2018 

 

 TABLE OF CONTENTS 
  

							
	 	 	 	  	Page	 
		
	 Article I DEFINITIONS
	  	 	2	 
	 Section 1.1
	 	Definitions	  	 	2	 
		
	 Article II DETERMINATION OF CERTAIN REALIZED TAX BENEFIT
	  	 	9	 
			
	 Section 2.1
	 	Basis Adjustment	  	 	9	 
	 Section 2.2
	 	Tax Benefit Schedule	  	 	9	 
	 Section 2.3
	 	Procedures, Amendments	  	 	10	 
		
	 Article III TAX BENEFIT PAYMENTS
	  	 	11	 
			
	 Section 3.1
	 	Payments	  	 	11	 
	 Section 3.2
	 	No Duplicative Payments	  	 	12	 
	 Section 3.3
	 	Pro Rata Payments; Coordination of Benefits With Other Tax Receivable Agreements	  	 	12	 
		
	 Article IV TERMINATION
	  	 	12	 
			
	 Section 4.1
	 	Early Termination and Breach of Agreement	  	 	12	 
	 Section 4.2
	 	Early Termination Notice	  	 	14	 
	 Section 4.3
	 	Payment upon Early Termination	  	 	14	 
		
	 Article V SUBORDINATION AND LATE PAYMENTS
	  	 	14	 
			
	 Section 5.1
	 	Subordination	  	 	14	 

							
	 Section 5.2
	 	Late Payments by the Corporate Taxpayer	  	 	15	 
		
	 Article VI NO DISPUTES; CONSISTENCY; COOPERATION
	  	 	15	 
			
	 Section 6.1
	 	Participation in the Corporate Taxpayer’s and the Company’s Tax Matters	  	 	15	 
	 Section 6.2
	 	Consistency	  	 	15	 
	 Section 6.3
	 	Cooperation	  	 	15	 
		
	 Article VII MISCELLANEOUS
	  	 	16	 
			
	 Section 7.1
	 	Notices	  	 	16	 
	 Section 7.2
	 	Counterparts	  	 	17	 
	 Section 7.3
	 	Entire Agreement; No Third Party Beneficiaries	  	 	17	 
	 Section 7.4
	 	Governing Law	  	 	17	 
	 Section 7.5
	 	Severability	  	 	17	 
	 Section 7.6
	 	Successors; Assignment; Amendments; Waivers	  	 	17	 
	 Section 7.7
	 	Titles and Subtitles	  	 	18	 
	 Section 7.8
	 	Resolution of Disputes	  	 	18	 
	 Section 7.9
	 	Reconciliation	  	 	19	 

							
	 Section 7.10
	 	Withholding	  	 	19	 
	 Section 7.11
	 	Admission of the Corporate Taxpayer into a Consolidated Group; Transfers of Corporate Assets	  	 	20	 
	 Section 7.12
	 	Confidentiality	  	 	20	 
	 Section 7.13
	 	LLC Agreement	  	 	21	 

 TAX RECEIVABLE AGREEMENT 

This TAX RECEIVABLE AGREEMENT (this “Agreement”), dated as of [November    ], 2018, is hereby entered
into by and among Caliburn International Corporation, a Delaware corporation (together with its Subsidiaries that are consolidated for U.S. federal income tax purposes, the “Corporate Taxpayer”) and each of the persons from time to
time party hereto (the “TRA Parties”). 
 RECITALS 

WHEREAS, the TRA Parties directly or indirectly hold common units (the “Common Units”) in Caliburn Holdings LLC, a Delaware
limited liability company (the “Company”), which is classified as a partnership for United States federal income tax purposes; 

WHEREAS, the Corporate Taxpayer is the managing member of the Company, and holds and will hold, directly and/or indirectly, Common Units; 

WHEREAS, the Blocker is classified as an association taxable as a corporation for United States federal income tax purposes; 

WHEREAS, the Blocker will merge with a Subsidiary of the Corporate Taxpayer with the Blocker surviving and immediately thereafter the Blocker
will merge with and into the Corporate Taxpayer (the “Reorganizations”); 
 WHEREAS, as a result of the Reorganizations the
Corporate Taxpayer will obtain the benefit of a Basis Adjustment and the Original Basis Adjustment with respect to its share of the Original Assets relating to the Common Units acquired in the Reorganizations; 

WHEREAS, in connection with IPO, the Corporate Taxpayer purchased [    ]% of the Common Units from the Sellers (the
“Sale”); 
 WHEREAS, the Common Units held by the TRA Parties may be exchanged for cash or Class A Common Stock, par
value $0.001 per share, of the Corporate Taxpayer (the “Class A Shares”), subject to the provisions of the LLC Agreement and the Exchange Agreement; 

WHEREAS, the Company and each of its direct and indirect Subsidiaries treated as a partnership for United States federal income tax purposes
currently have and will have in effect an election under Section 754 of the United States Internal Revenue Code of 1986, as amended (the “Code”), for each Taxable Year in which a taxable acquisition of Common Units by the Corporate
Taxpayer or the Company from the TRA Parties (whether for cash or Class A Shares or pursuant to a deemed transaction treated as a sale of Common Units for tax purposes) (in each case an “Exchange”) occurs; 

WHEREAS, as a result of the Sale and each Exchange the Corporate Taxpayer will, (i) obtain a Basis Adjustment with respect to the Common
Units exchanged, and (ii) obtain the benefit of the Original Basis Adjustment with respect to its share of the Original Assets relating to the Common Units exchanged; 

WHEREAS, the income, gain, loss, expense, deduction and other Tax items of the Corporate Taxpayer may be affected by (i) Basis
Adjustments, (ii) Original Basis Adjustments, and (iii) Imputed Interest; 
 WHEREAS, the parties to this Agreement desire to make
certain arrangements with respect to the effect of the Basis Adjustments, Original Basis Adjustment, and Imputed Interest on the liability for Covered Taxes of the Corporate Taxpayer; 

 NOW, THEREFORE, in consideration of the foregoing and the respective covenants and
agreements set forth herein, and intending to be legally bound hereby, the parties hereto agree as follows: 
 
ARTICLE I 
 DEFINITIONS 

Section 1.1 Definitions. As used in this Agreement, the terms set forth in this Article I shall
have the following meanings (such meanings to be equally applicable to both the singular and plural forms of the terms defined). 

“Actual Tax Liability” means, with respect to any Taxable Year, the actual liability for Covered Taxes of (i) the
Corporate Taxpayer and (ii) without duplication, the Company, but only with respect to Covered Taxes imposed on the Company and allocable to the Corporate Taxpayer or to the other members of the consolidated group of which the Corporate
Taxpayer is the parent for such Taxable Year; provided that the actual liability for Covered Taxes described in clauses (i) and (ii) shall be calculated assuming (x) any Subsequently Acquired TRA Attributes do not exist, and
(y) deductions of (and other impacts of) state taxes are excluded. 
 “Advance Payment” is defined in
Section 3.1(b) of this Agreement. 
 “Affiliate” means, with respect to any Person, any other Person that directly or
indirectly, through one or more intermediaries, Controls, is Controlled by, or is under common Control with, such first Person. 

“Agreed Rate” means the Reference Rate plus 100 basis points. 

“Agreement” is defined in the Preamble of this Agreement. 

“Amended Schedule” is defined in Section 2.3(b) of this Agreement. 

“Attributable” is defined in Section 3.1(b) of this Agreement. 

“Basis Adjustment” means the adjustment to the tax basis of a Reference Asset under Sections 732, 734(b) and 1012 of the Code
(in situations where, as a result of one or more Exchanges, the Company becomes an entity that is disregarded as separate from its owner for United States federal income tax purposes) or under Sections 734(b), 743(b) and 754 of the Code (in
situations where, following an Exchange, the Company remains in existence as an entity for United States federal income tax purposes) and, in each case, comparable sections of state, local and non-U.S. tax
laws, as a result of the Sale or an Exchange and the payments made pursuant to this Agreement (to the extent permitted by law). 
 A
“Beneficial Owner” of a security is a Person who directly or indirectly, through any contract, arrangement, understanding, relationship or otherwise, has or shares: (i) voting power, which includes the power to vote, or to
direct the voting of, such security and/or (ii) investment power, which includes the power to dispose of, or to direct the disposition of, such security. The terms “Beneficially Own” and “Beneficial Ownership”
shall have correlative meanings. 
 “Blocker” means Janus Blocker Corporation, a corporation incorporated in the State of
Delaware. 
 “Blocker Owner” means an owner of the Blocker immediately prior to the Reorganizations. 

“Board” means the Board of Directors of the Corporate Taxpayer. 

 “Business Day” means a day, other than Saturday, Sunday or other day on
which banks located in New York City, New York are authorized or required by law to close. 
 “Change of Control” means the
occurrence of any of the following events: 
  

	 	(i)	 any Person or any group of Persons acting together which would constitute a “group” for purposes of
Section 13(d) of the Securities and Exchange Act of 1934, or any successor provisions thereto, excluding (x) a corporation or other entity owned, directly or indirectly, by the stockholders of the Corporate Taxpayer in substantially the
same proportions as their ownership of stock in the Corporate Taxpayer and (y) any TRA Party or any of their Affiliates, who is, or becomes the Beneficial Owner, directly or indirectly, of securities of the Corporate Taxpayer representing more
than 50% of the combined voting power of the Corporate Taxpayer’s then outstanding voting securities; or 

  

	 	(ii)	 the following individuals cease for any reason to constitute a majority of the number of directors of the
Corporate Taxpayer then serving: individuals who, on the IPO Date, constitute the Board and any new director whose appointment or election by the Board or nomination for election by the Corporate Taxpayer’s shareholders was approved or
recommended by a vote of at least two-thirds (2/3) of the directors then still in office who either were directors on the IPO Date or whose appointment, election or nomination for election was previously so
approved or recommended by the directors referred to in this clause (ii); or 

  

	 	(iii)	 there is consummated a merger or consolidation of the Corporate Taxpayer with any other corporation or other
entity, and, immediately after the consummation of such merger or consolidation, either (x) the Board immediately prior to the merger or consolidation does not constitute at least a majority of the board of directors of the company surviving
the merger or consolidation or, if the surviving company is a Subsidiary, the ultimate parent thereof, or (y) the voting securities of the Corporate Taxpayer immediately prior to such merger or consolidation do not continue to represent or are
not converted or exchanged into more than 50% of the combined voting power of the then outstanding voting securities of the Person resulting from such merger or consolidation or, if the surviving company is a Subsidiary, the ultimate parent thereof;
or 

  

	 	(iv)	 the shareholders of the Corporate Taxpayer approve a plan of complete liquidation or dissolution of the
Corporate Taxpayer or there is consummated an agreement or series of related agreements for the sale, lease or other disposition, directly or indirectly, by the Corporate Taxpayer of all or substantially all of the Corporate Taxpayer’s assets,
other than such sale or other disposition by the Corporate Taxpayer of all or substantially all of the Corporate Taxpayer’s assets to an entity, at least 50% of the combined voting power of the voting securities of which are owned by
shareholders of the Corporate Taxpayer in substantially the same proportions as their ownership of the Corporate Taxpayer immediately prior to such sale. 

Notwithstanding the foregoing, except with respect to clause (ii) and clause (iii)(x) above, a “Change of Control” shall not be
deemed to have occurred by virtue of the consummation of any transaction or series of integrated transactions immediately following which the record holders of the shares of the Corporate Taxpayer immediately prior to such transaction or series of
transactions continue to have substantially the same proportionate ownership in, and own substantially all of the shares of, an entity which owns all or substantially all of the assets of the Corporate Taxpayer immediately following such transaction
or series of transactions. 
 “Class A Shares” is defined in the Recitals of this Agreement. 

 “Code” is defined in the Recitals of this Agreement. 

“Company Unit” is defined in the Recitals of this Agreement. 

“Company” is defined in the Recitals of this Agreement. 

“Control” means the possession, direct or indirect, of the power to direct or cause the direction of the management and
policies of a Person, whether through ownership of voting securities, by contract or otherwise. 
 “Corporate Taxpayer” is
defined in the Preamble of this Agreement. 
 “Corporate Taxpayer Return” means the applicable Tax Return of the Corporate
Taxpayer filed with respect to Covered Taxes of any Taxable Year. 
 “Covered Taxes” means any and all U.S. federal, state, local,
and non-U.S. tax, assessment or similar charge that is based on or measured with respect to net income or profits, whether as an exclusive or an alternative basis (including for the avoidance of doubt,
franchise taxes and transaction taxes imposed in lieu of income taxes), and any interest imposed in respect thereof under applicable law. 

“Cumulative Net Realized Tax Benefit” for a Taxable Year means the cumulative amount of Realized Tax Benefits for all Taxable
Years of the Corporate Taxpayer, up to and including such Taxable Year, net of the cumulative amount of Realized Tax Detriments for the same period. The Realized Tax Benefit and Realized Tax Detriment for each Taxable Year shall be determined based
on the most recent Tax Benefit Schedules or Amended Schedules, if any, in existence at the time of such determination. 
 “DC
Capital Director” means each member of the Board designated or nominated by the DC Capital Parties, whether before or after the IPO. 

“DC Capital Parties” means [DC Capital Partners, LLC and any Affiliate thereof]. 

“DC Capital Representative” means DC Capital Partners, LLC. 

“Default Rate” means the Reference Rate plus 500 basis points. 

“Determination” shall have the meaning ascribed to such term in Section 1313(a) of the Code or similar provision of U.S.
state, local, or non-U.S. tax law, as applicable, or any other event (including the execution of IRS Form 870-AD) that finally and conclusively establishes the amount of
any liability for Covered Tax and shall also include the acquiescence of the Corporate Taxpayer to the amount of any assessed liability for Covered Tax. 

“Dispute” has the meaning set forth in Section 7.8(a) of this Agreement. 

“Early Termination Date” means the date of an Early Termination Notice for purposes of determining the Early Termination
Payment. 
 “Early Termination Effective Date” is defined in Section 4.2 of this Agreement. 

“Early Termination Notice” is defined in Section 4.2 of this Agreement. 

“Early Termination Schedule” is defined in Section 4.2 of this Agreement. 

“Early Termination Payment” is defined in Section 4.3(b) of this Agreement. 

“Early Termination Rate” means a per annum rate of the lesser of (i) 6.5%, compounded annually, and (ii) the Reference
Rate plus 100 basis points. 

 “Exchange” is defined in the Recitals of this Agreement. 

“Exchange Agreement” means the Exchange Agreement, dated as of [November    , 2018], among the Corporate
Taxpayer, the Company and the holders of Common Units party thereto, as amended from time to time. 
 “Exchange Date” means
the date of any Exchange. 
 “Exchange Notice” shall have the meaning set forth in the Exchange Agreement. 

“Exchange Registration Holder” shall have the meaning set forth in the Registration Rights Agreement. 

“Exchange Schedule” is defined in Section 2.1 of this Agreement. 

“Expert” is defined in Section 7.9 of this Agreement. 

“Final Payment Date” means any date on which a payment is required to be made pursuant to this Agreement. For the avoidance
of doubt, a Final Payment Date in respect of a Tax Benefit Payment is determined pursuant to Section 3.1(a) of this Agreement. 

“Hypothetical Tax Liability” means, with respect to any Taxable Year, the liability for Covered Taxes of (i) the
Corporate Taxpayer and (ii) without duplication, the Company, but only with respect to Covered Taxes imposed on the Company and allocable to the Corporate Taxpayer or to the other members of the consolidated group of which the Corporate
Taxpayer is the parent, in each case using the same methods, elections, conventions, tax rate and similar practices used on the relevant Corporate Taxpayer Return, but (i) using the Non-Stepped Up Tax
Basis, and (ii) excluding any deduction attributable to Imputed Interest for the Taxable Year. Hypothetical Tax Liability shall be determined without taking into account the carryover or carryback of any tax item or attribute (or portions
thereof) that is available for use because of any Basis Adjustments, the Original Basis Adjustment, and any Imputed Interest. Furthermore, the Hypothetical Tax Liability shall be calculated assuming (x) any Subsequently Acquired TRA Attributes
do not exist, and (y) deductions of (and other impacts of) state income taxes are excluded. 
 “Imputed Interest” in
respect of a TRA Party shall mean any interest imputed under Section 1272, 1274 or 483 or other provision of the Code and under any principals of any similar provisions of U.S. state, local and non-U.S.
law with respect to the Corporate Taxpayer’s payment obligations in respect of such TRA Party under this Agreement. 

“Interest Amount” is defined in Section 3.1(b) of this Agreement. 

“IPO” means the initial public offering of Class A Shares by the Corporate Taxpayer. 

“IPO Date” means the closing date of the IPO. 

“IRS” means the United States Internal Revenue Service. 

“LIBOR” means during any period, an interest rate per annum equal to the one-year
LIBOR reported, on the date two days prior to the first day of such period, on the Telerate Page 3750 (or if such screen shall cease to be publicly available, as reported on Reuters Screen page “LIBOR01” or by any other publicly available
source of such market rate) for London interbank offered rates for United States dollar deposits for such period. 
 “LLC
Agreement” means, with respect to the Company, the Third Amended and Restated Limited Liability Company Agreement of the Company, as amended from time to time. 

 “Market Value” shall mean the closing price of the Class A Shares on
the applicable Exchange Date on the national securities exchange or interdealer quotation system on which such Class A Shares are then traded or listed, as reported by the Wall Street Journal; provided, that if the closing price
is not reported by the Wall Street Journal for the applicable Exchange Date, then the Market Value shall mean the closing price of the Class A Shares on the Business Day immediately preceding such Exchange Date on the national securities
exchange or interdealer quotation system on which such Class A Shares are then traded or listed, as reported by the Wall Street Journal; provided, further, that if the Class A Shares are not then listed on a national
securities exchange or interdealer quotation system, “Market Value” shall mean the cash consideration paid for Class A Shares, or the fair market value of the other property delivered for Class A Shares, as determined by the
Board (which determination must include the consent of at least a majority of the Non-DC Capital Directors) in good faith. 

“Material Objection Notice” has the meaning set forth in Section 4.2 of this Agreement. 

“Net Tax Benefit” is defined in Section 3.1(b) of this Agreement. 

“Non-DC Capital Director” means any member of the Board other than the DC Capital
Directors. 
 “Non-Party Member” means each member of the Company who is not a
party hereto as of the date of this Agreement. 
 “Non-Stepped Up Tax Basis” means,
with respect to any Reference Asset or Original Asset at any time, the tax basis that such asset would have had at such time if (i) no Basis Adjustments had been made and (ii) there had been no Original Basis Adjustment. 

“Objection Notice” has the meaning set forth in Section 2.3(a) of this Agreement. 

“Original Assets” means the assets owned by the Company, or any of its direct or indirect Subsidiaries treated as a
partnership or disregarded entity (but only if such indirect Subsidiaries are held only through Subsidiaries treated as partnerships or disregarded entities) for purposes of the applicable Tax, at the time of the IPO. Original Assets also include
any asset that is “substituted basis property” under Section 7701(a)(42) of the Code (or any analogous provision of state, local, or non-U.S. tax law) with respect to any Original Asset. 

“Original Basis Adjustment” means (i) the adjustment to the tax basis of the Original Assets as a result of the
transactions pursuant to the Stock Purchase Agreement among Janus Holdco LLC, Janus ESOP Holdings, Inc., Janus ESOP Holdings Inc. Employee Stock Ownership Trust, Shareholder Representative Services LLC, and DC Capital Partners Fund II, L.P., dated
as of November 20, 2017 and (ii) the adjustment to the tax basis of the Original Assets as a result of the transactions pursuant to the Stock Purchase Agreement by and among Comprehensive Health Holdings, Inc., Comprehensive Health
Services, Inc., Gladiator OpCo, LLC, Sallyport Logistics & Security LLC, and Morrill M. Hall, Jr., dated March 22, 2018 and, (iii) any subsequent adjustment in the tax basis of an Original Asset determined, in whole or in part, by
reference to any prior Original Basis Adjustment. 
 “Person” means any individual, corporation, firm, partnership, joint
venture, limited liability company, estate, trust, business association, organization, governmental entity or other entity. 

“Realized Tax Benefit” means, for a Taxable Year, the excess, if any, of the Hypothetical Tax Liability over the Actual Tax
Liability. If all or a portion of the actual liability for such Covered Taxes for the Taxable Year arises as a result of an audit by a Taxing Authority of any Taxable Year, such liability shall not be included in determining the Realized Tax Benefit
unless and until there has been a Determination. 

 “Realized Tax Detriment” means, for a Taxable Year, the sum of the excess,
if any, of the Actual Tax Liability over the Hypothetical Tax Liability. If all or a portion of the actual liability for such Covered Taxes for the Taxable Year arises as a result of an audit by a Taxing Authority of any Taxable Year, such liability
shall not be included in determining the Realized Tax Detriment unless and until there has been a Determination. 
 “Reconciliation
Dispute” has the meaning set forth in Section 7.9 of this Agreement. 
 “Reconciliation Procedures” has the
meaning set forth in Section 2.3(a) of this Agreement. 
 “Reference Asset” means an asset that is held by the
Company, or by any of its direct or indirect Subsidiaries treated as a partnership or disregarded entity (but only if such indirect Subsidiaries are held only through Subsidiaries treated as partnerships or disregarded entities) for purposes of the
applicable Tax, at the time of the Sale or an Exchange. A Reference Asset also includes any asset that is “substituted basis property” under Section 7701(a)(42) of the Code (or any analogous provision of state, local, or non-U.S. tax law) with respect to a Reference Asset. 
 “Reference Rate” means the
Reference Rate Base plus the Reference Rate Spread. 
 “Reference Rate Base” means LIBOR during any period for which such
rate is published in accordance with the definition thereof. If LIBOR ceases to be published in accordance with the definition thereof, the Company and the DC Capital Representative shall work together in good faith to select a new Reference Rate
Base with similar characteristics. 
 “Reference Rate Spread” means 0 basis points during any period for which LIBOR is published
in accordance with the definition thereof. If LIBOR ceases to be published in accordance with the definition thereof, the Company and the DC Capital Representative shall work together in good faith to select a new Reference Rate Spread, such that
the Reference Rate is not materially changed (and in no event by more than 25 basis points) as a result of the selection of a new Reference Rate Base at the time of such election. 

“Registration Rights Agreement” means the Amended and Restated Registration Rights Agreement, dated as of
[                    ], among the Corporate Taxpayer and each other party thereto, as amended from time to time. 

“Reorganizations” is defined in the Recitals of this Agreement. 

“Sale” is defined in the Recitals of this Agreement. 

“Schedule” means any of the following: (i) an Exchange Schedule, (ii) a Tax Benefit Schedule, or (iii) the
Early Termination Schedule. 
 “Sellers” means [names of current holders of Class AA Interests]. 

“Senior Obligations” is defined in Section 5.1 of this Agreement. 

“Subsequently Acquired TRA Attributes” means any net operating losses or other tax attributes to which any of the Corporate
Taxpayer, the Company or any of their Subsidiaries become entitled as a result of a transaction (other than any Exchanges) after the date of this Agreement to the extent such net operating losses and other tax attributes are subject to a tax
receivable agreement (or comparable agreement) entered into by the Corporate Taxpayer, the Company or any of their Subsidiaries pursuant to which the Corporate Taxpayer, the Company or any of their Subsidiaries are obligated to pay over amounts with
respect to tax benefits resulting from such net operating losses or other tax attributes. 

 “Subsidiaries” means, with respect to any Person, as of any date of
determination, any other Person as to which such Person, owns, directly or indirectly, or otherwise controls more than 50% of the voting power or other similar interests or the sole general partner interest or managing member or similar interest of
such Person. 
 “Tax Benefit Payment” is defined in Section 3.1(b) of this Agreement. 

“Tax Benefit Schedule” is defined in Section 2.2 of this Agreement. 

“Tax Return” means any return, declaration, report or similar statement required to be filed with respect to taxes (including
any attached schedules), including, without limitation, any information return, claim for refund, amended return and declaration of estimated tax. 

“Taxable Year” means a taxable year of the Corporate Taxpayer as defined in Section 441(b) of the Code or comparable
section of state, local, or non-U.S. tax law, as applicable (and, therefore, for the avoidance of doubt, may include a period of less than 12 months for which a Tax Return is made), ending on or after the IPO
Date. 
 “Taxing Authority” shall mean any domestic, federal, national, state, county or municipal or other local
government, any subdivision, agency, commission or authority thereof, or any quasi-governmental body exercising any taxing authority or any other authority exercising tax regulatory authority. 

“TRA Party” is defined in the Preamble of this Agreement. 

“Treasury Regulations” means the final, temporary and proposed regulations under the Code promulgated from time to time
(including corresponding provisions and succeeding provisions) as in effect for the relevant taxable period. 
 “Valuation
Assumptions” shall mean, as of an Early Termination Date, the assumptions that in each Taxable Year ending on or after such Early Termination Date, 

(1) the Corporate Taxpayer will have taxable income sufficient to fully utilize the deductions arising from the Basis Adjustments, the
Original Basis Adjustment, and the Imputed Interest during such Taxable Year or future Taxable Years (including, for the avoidance of doubt, Basis Adjustments and Imputed Interest that would result from future Tax Benefit Payments that would be paid
in accordance with the Valuation Assumptions) in which such deductions would become available; 
 (2) the United States federal, state,
local and non-U.S. income tax rates that will be in effect for each such Taxable Year will be those specified for each such Taxable Year by the Code and other law as in effect on the Early Termination Date;

 (3) any loss carryovers from a prior year generated by any Basis Adjustment, Original Basis Adjustment, Imputed Interest (including such
Basis Adjustment and Imputed Interest generated as a result of payments under this Agreement), and available as of the date of the Early Termination Schedule will be deemed used by the Corporate Taxpayer on a pro rata basis from the date of the
Early Termination Schedule through the scheduled expiration date of such loss carryovers or, if such carryforwards do not have an expiration date, over the 15-year period after such carryforwards were
generated; 
 (4) any non-amortizable assets will be disposed of on the fifteenth anniversary of the
applicable Basis Adjustment (or on the fifteenth anniversary of the IPO in the case of any non-amortizable assets that is an Original Asset) in a fully taxable transaction for U.S. federal, state, local and non-U.S. income tax purposes; provided, that in the event of a Change of Control, such non-amortizable assets shall be deemed disposed of at the time of sale of the
relevant asset (if earlier than such fifteenth anniversary); and 

 (5) if, at the Early Termination Date, there are Common Units that have not been Exchanged,
then each such Common Unit shall be deemed to be Exchanged for the Market Value of the Class A Shares and the amount of cash that would be transferred if the Exchange occurred on the Early Termination Date. 

ARTICLE II 

DETERMINATION OF CERTAIN REALIZED TAX BENEFIT 

Section 2.1 Attribute Schedule. 

Within ninety (90) calendar days after the filing of the U.S. federal income tax return of the Corporate Taxpayer for each Taxable Year,
the Corporate Taxpayer shall deliver to each TRA Party a schedule (the “Exchange Schedule”) that shows, in reasonable detail necessary to perform the calculations required by this Agreement, including (i) the Non-Stepped Up Tax Basis of the Reference Assets in respect of such TRA Party as of the Sale and each applicable Exchange Date, (ii) the Basis Adjustment with respect to the Reference Assets in respect of such
TRA Party as a result of the Sale and/or the Exchanges effected in such Taxable Year by such TRA Party, calculated in the aggregate, (iii) the period (or periods) over which the Reference Assets in respect of such TRA Party are amortizable
and/or depreciable, (iv) the period (or periods) over which each Basis Adjustment in respect of such TRA Party is amortizable and/or depreciable, (v) the Original Basis Adjustment with respect to Common Units exchanged in such Taxable Year
by such TRA Party, (vi) the period or periods, if any, over which the Original Assets are amortizable and/or depreciable, and (vii) the period or periods, if any, over which the Original Basis Adjustment with respect to the Common Units
exchanged in such Taxable Year by such TRA Party is amortizable and/or depreciable (which, for non-amortizable assets shall be based on the Valuation Assumptions in connection with an Early Termination Payment
or a Change of Control). 
 Section 2.2 Tax Benefit Schedule. 

(a) Tax Benefit Schedule. Within ninety (90) calendar days after the filing of the U.S. federal income tax return of the Corporate
Taxpayer for any Taxable Year in which the Sale occurs, which is subsequent to the Taxable Year in which the Sale occurs, in which the Reorganizations occur, which is subsequent to the Taxable Year of the Reorganizations, in which any Exchange has
been effected by a TRA Party, or which is subsequent to any Taxable Year in which any Exchange has been effected by a TRA Party, the Corporate Taxpayer shall provide to the applicable TRA Party a schedule showing, in reasonable detail, the
calculation of the Tax Benefit Payment in respect of such TRA Party for such Taxable Year and the calculation of the Realized Tax Benefit and Realized Tax Detriment and components thereof (a “Tax Benefit Schedule”). Each Tax Benefit
Schedule will become final as provided in Section 2.3(a) and may be amended as provided in Section 2.3(b) (subject to the procedures set forth in Section 2.3(b)). 

(b) Applicable Principles. For purposes of calculating the Realized Tax Benefit or Realized Tax Detriment for any period, carryovers or
carrybacks of any tax item attributable to the Basis Adjustments, Original Basis Adjustment, and Imputed Interest shall be considered to be subject to the rules of the Code and the Treasury Regulations or the appropriate provisions of state, local
and non-U.S. tax law, as applicable, governing the use, limitation and expiration of carryovers or carrybacks of the relevant type. If a carryover or carryback of any tax item includes a portion that is
attributable to the Basis Adjustment, Original Basis Adjustment, or Imputed Interest and another portion that is not, such respective portions shall be considered to be used in accordance with the “with and without” methodology. The
parties agree that (i) all Tax Benefit Payments and other payments under this Agreement (to the extent permitted by law and other than amounts accounted for as interest under the Code) will (A) be treated as subsequent upward purchase
price adjustments that give rise to further Basis 

 
Adjustments to Reference Assets for the Corporate Taxpayer and (B) have the effect of creating additional Basis Adjustments to Reference Assets for the Corporate Taxpayer in the year of
payment, and (ii) as a result, such additional Basis Adjustments will be incorporated into the current year calculation and into future year calculations, as appropriate. 

Section 2.3 Procedures, Amendments. 

(a) Procedure. Every time the Corporate Taxpayer delivers to a DC Capital Party an applicable Schedule under this Agreement, including
any Amended Schedule delivered pursuant to Section 2.3(b), and any Early Termination Schedule or amended Early Termination Schedule, the Corporate Taxpayer shall also (x) deliver to such DC Capital Party schedules, valuation reports, if
any, and work papers, as determined by the Corporate Taxpayer or requested by such DC Capital Party, providing reasonable detail regarding the preparation of the Schedule and (y) allow such DC Capital Party reasonable access at no cost to the
appropriate representatives at the Corporate Taxpayer, as determined by the Corporate Taxpayer or requested by such DC Capital Party, in connection with a review of such Schedule. Without limiting the application of the preceding sentence, each time
the Corporate Taxpayer delivers to a DC Capital Party a Tax Benefit Schedule, in addition to the Tax Benefit Schedule duly completed, the Corporate Taxpayer shall deliver to such DC Capital Party the Corporate Taxpayer Return, the reasonably
detailed calculation by the Corporate Taxpayer of the applicable Hypothetical Tax Liability, the reasonably detailed calculation by the Corporate Taxpayer of the applicable Actual Tax Liability, as well as any other work papers as determined by the
Corporate Taxpayer or requested by such DC Capital Party, provided that the Corporate Taxpayer shall be entitled to redact any information that it reasonably believes is unnecessary for purposes of determining the items in the applicable Schedule or
amendment thereto. An applicable Schedule or amendment thereto shall become final and binding on all parties thirty (30) calendar days after the first date on which the TRA Party has received the applicable Schedule or amendment thereto unless,
in the case of a DC Capital Party, such DC Capital Party (i) within thirty (30) calendar days after receiving an applicable Schedule or amendment thereto, provides the Corporate Taxpayer with notice of a material objection to such Schedule
(“Objection Notice”) made in good faith or (ii) provides a written waiver of such right of any Objection Notice within the period described in clause (i) above, in which case such Schedule or amendment thereto
becomes binding on the date the waiver is received by the Corporate Taxpayer. If the Corporate Taxpayer and any objecting DC Capital Party, for any reason, are unable to successfully resolve the issues raised in the Objection Notice within thirty
(30) calendar days after receipt by the Corporate Taxpayer of an Objection Notice, the Corporate Taxpayer and such DC Capital Party shall employ the reconciliation procedures as described in Section 7.9 of this Agreement (the
“Reconciliation Procedures”). 
 (b) Amended Schedule. The applicable Schedule for any Taxable
Year may be amended from time to time by the Corporate Taxpayer (i) in connection with a Determination affecting such Schedule, (ii) to correct inaccuracies in the Schedule identified after the date the Schedule was provided to a TRA
Party, (iii) to comply with the Expert’s determination under the Reconciliation Procedures, (iv) to reflect a change in the Realized Tax Benefit or Realized Tax Detriment for such Taxable Year attributable to a carryback or
carryforward of a loss or other tax item to such Taxable Year, (v) to reflect a change in the Realized Tax Benefit or Realized Tax Detriment for such Taxable Year attributable to an amended Tax Return filed for such Taxable Year, or
(vi) to adjust an applicable Exchange Schedule to take into account payments made pursuant to this Agreement (any such Schedule, an “Amended Schedule”). The Corporate Taxpayer shall provide an Amended Schedule to each TRA Party
within ninety (90) calendar days of the occurrence of an event referenced in clauses (i) through (vi) of the preceding sentence. 

 ARTICLE III 

TAX BENEFIT PAYMENTS 
 
Section 3.1 Payments. 
 (a) Payments. Within five (5) calendar days after a Tax Benefit Schedule delivered to a
TRA Party becomes final in accordance with Section 2.3(a) (such date, a “Final Payment Date” in respect of any applicable Tax Benefit Payment), the Corporate Taxpayer shall pay such TRA Party for such Taxable Year an amount
equal to the excess, if any, of (i) the Tax Benefit Payment in respect of such TRA Party for such Taxable Year determined pursuant to Section 3.1(b) over (ii) the aggregate amount of Advance Payments previously made to such TRA Party
under this Section 3.1(a) in respect of such Taxable Year. In addition, the Corporate Taxpayer may, at its sole election, make Advance Payments to the TRA Parties in respect of a Taxable Year; provided that, if the Corporate Taxpayer makes
Advanced Payments, it shall make Advance Payments to all parties eligible to receive payments under this Agreement in proportion to their respective amount of anticipated remaining payments under this Agreement in respect of such Taxable Year. Each
such Tax Benefit Payment or such Advance Payment shall be made by wire transfer of immediately available funds to the bank account previously designated by such TRA Party to the Corporate Taxpayer or as otherwise agreed by the Corporate Taxpayer and
such TRA Party. For the avoidance of doubt, no Tax Benefit Payment shall be made in respect of estimated tax payments, including, without limitation, federal estimated income tax payments. 

(b) A “Tax Benefit Payment” in respect of a TRA Party for a Taxable Year means an amount, not less than zero, equal to the
sum of the portion of the Net Tax Benefit Attributable to such TRA Party and the Interest Amount with respect thereto. A Net Tax Benefit is “Attributable” to a TRA Party to the extent that is derived from any Basis Adjustment, the
Original Basis Adjustment, and any Imputed Interest that is attributable to the Common Units acquired by Corporate Taxpayer in the Sale, the Reorganizations or an Exchange, as applicable, undertaken by or with respect to such TRA Party. For the
avoidance of doubt, for tax purposes, the Interest Amount shall not be treated as interest but instead shall be treated as additional consideration for the acquisition of Common Units in the Sale or Exchanges, as applicable, unless otherwise
required by law. The “Net Tax Benefit” for a Taxable Year shall be an amount equal to the excess, if any, of 85% of the Cumulative Net Realized Tax Benefit as of the end of such Taxable Year, over the sum of the total amount of
payments previously made under Section 3.1(a) of this Agreement (excluding payments attributable to Interest Amounts); provided, for the avoidance of doubt, that no TRA Party shall be required to return any portion of any previously made
Tax Benefit Payment or Advance Payment. The “Interest Amount” in respect of a TRA Party shall equal the interest on the amount of the unpaid Net Tax Benefit Attributable to such TRA Party for a Taxable Year, which interest shall
accrue on any unpaid Net Tax Benefit from and after the due date (without extensions) for filing the Corporate Taxpayer Return for such Taxable Year, calculated at the Agreed Rate, until the date such unpaid amounts are paid. “Advance
Payments” in respect of a TRA Party for a Taxable Year means the payments made by the Corporate Taxpayer to such TRA Party as an advance of such TRA Party’s anticipated Tax Benefit Payment for such Taxable Year. 

(c) In the event that the Corporate Taxpayer does not make timely payment of all or any portion of a Tax Benefit Payment to a TRA Party on or
before a date on which a Tax Benefit Payment is due as determined pursuant to Section 3.1(a), the amount of “Default Rate Interest” calculated in respect of the Net Tax Benefit (including previously accrued
Imputed Interest and Extension Rate Interest) for a Taxable Year will equal interest calculated at the Default Rate from a Final Payment Date for a Tax Benefit Payment as determined pursuant to Section 3.1(a) until the date
on which the Corporate Taxpayer makes such Tax Benefit Payment to such TRA Party. For the avoidance of doubt, the amount of any Default Rate Interest as determined with respect to any Net Tax Benefit payable by the Corporate Taxpayer to a TRA Party
shall be excluded in the Hypothetical Tax Liability of the Corporate Taxpayer for purposes of calculating Realized Tax Benefits and Realized Tax Detriments pursuant to this Agreement. 

 Section 3.2 No Duplicative Payments. It is
intended that the provisions of this Agreement will not result in duplicative payment of any amount (including interest) required under this Agreement. The provisions of this Agreement shall be construed in the appropriate manner to ensure such
intentions are realized. 
 Section 3.3 Pro Rata Payments; Coordination of Benefits.

 (a) Notwithstanding anything in Section 3.1 to the contrary, to the extent that the aggregate amount of the Corporate Taxpayer’s
tax benefit from the reduction in Covered Tax liability as a result of the Basis Adjustments, Original Basis Adjustment, or Imputed Interest under this Agreement is limited in a particular Taxable Year because the Corporate Taxpayer does not have
sufficient taxable income to fully utilize available deductions and other attributes, the limitation on the tax benefit for the Corporate Taxpayer shall be allocated among the TRA Parties in proportion to the respective amounts of Tax Benefit
Payments that would have been determined under this Agreement if the Corporate Taxpayer had sufficient taxable income so that there were no such limitation. 

(b) After taking into account Section 3.3(a), if for any reason the Corporate Taxpayer does not fully satisfy its payment obligations to
make all Tax Benefit Payments due under this Agreement in respect of a particular Taxable Year, then the Corporate Taxpayer and the TRA Parties agree that (i) the Corporate Taxpayer shall pay the same proportion of each Tax Benefit Payment due
to each Person due a payment under this Agreement in respect of such Taxable Year, without favoring one obligation over the other, and (ii) no Tax Benefit Payment shall be made in respect of any Taxable Year until all Tax Benefit Payments in
respect of prior Taxable Years have been made in full. 
 (c) If for any reason the Corporate Taxpayer is not able to timely and fully
satisfy its payment obligations under this Agreement in respect of a particular Taxable Year, then Default Rate Interest will begin to accrue pursuant to Section 5.2. 

(d) To the extent the Corporate Taxpayer makes a payment to a TRA Party in respect of a particular Taxable Year under Section 3.1(a) of
this Agreement (taking into account Section 3.3(a) and (b), but excluding payments attributable to Interest Amounts) in an amount in excess of the amount of such payment that should have been made to such TRA Party in respect of such Taxable
Year, then (i) such TRA Party shall not receive further payments under Section 3.1(a) until such TRA Party has foregone an amount of payments equal to such excess and (ii) the Corporate Taxpayer shall pay the amount of such TRA
Party’s foregone payments to the other TRA Parties under this Agreement in a manner such that each of the other TRA Parties, to the maximum extent possible, shall have received aggregate payments under Section 3.1(a) of this Agreement
(taking into account Section 3.3(a) and (b) of this Agreement, but excluding payments attributable to Interest Amounts) in the amount it would have received if there had been no excess payment to such TRA Party. 

ARTICLE IV 

TERMINATION 
 
Section 4.1 Early Termination and Breach of Agreement. 
 (a) The Corporate Taxpayer may terminate this Agreement with
respect to all amounts payable to the TRA Parties and with respect to all of the Common Units held by the TRA Parties at any time by paying (i) to each TRA Party the Early Termination Payment in respect of such TRA Party; provided,
however, that if the Corporate Taxpayer and the DC Capital Representative agree, the 

 
Corporate Taxpayer may terminate this Agreement with respect to some or all of the amounts payable to less than all of the TRA Parties under this Agreement; provided, further that
this Agreement shall only terminate pursuant to this Section 4.1(a) with respect to a TRA Party upon the receipt of the Early Termination Payment by such TRA Party, and the Corporate Taxpayer shall deliver an Early Termination Notice only if it
is able to make all required Early Termination Payments under this Agreement at the time required by Section 4.3, and provided, further, that the Corporate Taxpayer may withdraw any notice to execute its termination rights under
this Section 4.1(a) prior to the time at which any Early Termination Payment has been paid. Upon payment of the Early Termination Payment by the Corporate Taxpayer in accordance with this Section 4.1(a) and Section 4.3, the Corporate
Taxpayer shall not have any further payment obligations under this Agreement with respect to the TRA Parties that have received their Early Termination Payment in accordance with this Section 4.1(a) and Section 4.3, other than for any
(a) Tax Benefit Payment agreed to by the Corporate Taxpayer, on one hand, and the applicable TRA Party, on the other, as due and payable but unpaid as of the Early Termination Notice and (b) Tax Benefit Payment due for the Taxable Year
ending with or including the date of the Early Termination Notice (except to the extent that the amount described in clause (b) is included in the Early Termination Payment). If an Exchange by a TRA Party occurs after the Corporate Taxpayer
makes the Early Termination Payment to such TRA Party pursuant to this Section 4.1(a), the Corporate Taxpayer shall have no obligations under this Agreement with respect to such Exchange. 

(b) In the event that the Corporate Taxpayer breaches any of its material obligations under this Agreement, whether as a result of failure to
make any payment when due, failure to honor any other material obligation required hereunder to the extent not cured within thirty (30) days of receiving written notice from any TRA Party that is materially prejudiced by such failure or by
operation of law as a result of the rejection of this Agreement in a case commenced under the Bankruptcy Code or otherwise, then all obligations hereunder shall be accelerated and such obligations shall be calculated as if an Early Termination
Notice had been delivered on the date of such breach and shall include (without duplication), but not be limited to, (1) the Early Termination Payments calculated as if an Early Termination Notice had been delivered on the date of a breach,
(2) any Tax Benefit Payment in respect of a TRA Party agreed to by the Corporate Taxpayer and such TRA Party as due and payable but unpaid as of the date of a breach, and (3) any Tax Benefit Payment in respect of any TRA Party due for the
Taxable Year ending with or including the date of a breach; provided, that procedures similar to the procedures of Section 4.2 shall apply with respect to the determination of the amount payable by the Corporate Taxpayer pursuant to this
sentence. 
 Notwithstanding the foregoing, in the event that the Corporate Taxpayer breaches this Agreement, each TRA Party shall be
entitled to elect to receive the amounts set forth in clauses (1), (2) and (3) above or to seek specific performance of the terms hereof. The parties agree that the failure to make any payment due pursuant to this Agreement within three months
of the date such payment is due shall be deemed to be a breach of a material obligation under this Agreement for all purposes of this Agreement, and that it will not be considered to be a breach of a material obligation under this Agreement to make
a payment due pursuant to this Agreement within three months of the date such payment is due. Notwithstanding anything in this Agreement to the contrary, it shall not be a breach of this Agreement if the Corporate Taxpayer fails to make any Tax
Benefit Payment when due to the extent that the Corporate Taxpayer has insufficient funds to make such payment despite using reasonable best efforts to obtain funds to make such payment (including by causing the Company or any other Subsidiaries to
distribute or lend funds for such payment and access any revolving credit facilities or other sources of available credit to fund any such amounts); provided that the interest provisions of Section 5.2 shall apply to such late payment;
and provided, further that, solely with respect to a Tax Benefit Payment, if the Corporate Taxpayer does not have sufficient cash to make such payment as a result of limitations imposed by existing credit agreements to which the Company is a
party, which limitations are effective as of the date of this Agreement, Section 5.2 shall apply, but the Default Rate shall be replaced by the Agreed Rate. 

 (c) In the event of a Change of Control, all obligations hereunder shall be accelerated and
such obligations shall be calculated pursuant to this Article IV as if an Early Termination Notice had been delivered on the closing date of the Change of Control and utilizing the Valuation Assumptions by substituting the phrase “the closing
date of a Change of Control” in each place where the phrase “Early Termination Effective Date” appears. Such obligations shall include, but not be limited to, (1) the Early Termination Payment calculated as if an Early
Termination Notice had been delivered on the closing date of the Change of Control, (2) any Tax Benefit Payments agreed to by the Corporate Taxpayer and the Beneficiaries or Blocker Owners as due and payable but unpaid as of the Early
Termination Notice and (3) any Tax Benefit Payments due for any Taxable Year ending prior to, with or including the closing date of a Change of Control (except to the extent that any amounts described in clauses (2) or (3) are included in
the Early Termination Payment). For the avoidance of doubt, Sections 4.2 and 4.3 shall apply to a Change of Control, mutadis mutandi. 

Section 4.2 Early Termination Notice. If the Corporate Taxpayer chooses to exercise its right of
early termination under Section 4.1 above, the Corporate Taxpayer shall deliver to each TRA Party notice of such intention to exercise such right (“Early Termination Notice”) and a schedule (the “Early Termination
Schedule”) specifying the Corporate Taxpayer’s intention to exercise such right and showing in reasonable detail the calculation of the Early Termination Payment(s) due for each TRA Party. Each Early Termination Schedule shall become
final and binding on all parties thirty (30) calendar days after the first date on which the TRA Party has received such Schedule or amendment thereto unless, in the case of a DC Capital Party, such DC Capital Party (i) within thirty
(30) calendar days after receiving the Early Termination Schedule, provides the Corporate Taxpayer with notice of a material objection to such Schedule made in good faith (“Material Objection Notice”) or (ii) provides a
written waiver of such right of a Material Objection Notice within the period described in clause (i) above, in which case such Schedule becomes binding on the date the waiver is received by the Corporate Taxpayer (such thirty
(30) calendar day date as modified, if at all by clauses (i) or (ii), the “Early Termination Effective Date”). If the Corporate Taxpayer and the DC Capital Party, for any reason, are unable to successfully resolve the
issues raised in such notice within thirty (30) calendar days after receipt by the Corporate Taxpayer of the Material Objection Notice, the Corporate Taxpayer and the objecting DC Capital Party shall employ the Reconciliation Procedures in
which case such Schedule becomes binding ten (10) 
days after the conclusion of the Reconciliation Procedures. 
 Section 4.3 Payment upon Early
Termination. 
 (a) Within three (3) calendar days after an Early Termination Effective Date, the Corporate Taxpayer shall pay to
each TRA Party an amount equal to the Early Termination Payment in respect of such TRA Party. Such payment shall be made by wire transfer of immediately available funds to a bank account or accounts designated by the TRA Party or as otherwise agreed
by the Corporate Taxpayer and such TRA Party. 
 (b) “Early Termination Payment” in respect of a TRA Party shall equal the
present value, discounted at the Early Termination Rate (using a mid-year convention) as of the applicable Early Termination Effective Date, of all Tax Benefit Payments in respect of such TRA Party that would
be required to be paid by the Corporate Taxpayer beginning from the Early Termination Date and assuming that the Valuation Assumptions in respect of such TRA Party are applied. 

ARTICLE V 

SUBORDINATION AND LATE PAYMENTS 

Section 5.1 Subordination. Notwithstanding any other provision of this Agreement to the contrary, any
Tax Benefit Payment, Early Termination Payment or any other payment required to be 

 
made by the Corporate Taxpayer to the TRA Parties under this Agreement shall rank subordinate and junior in right of payment to any principal, interest or other amounts due and payable in respect
of any obligations in respect of indebtedness for borrowed money of the Corporate Taxpayer and its Subsidiaries (such obligations, “Senior Obligations”) and shall rank pari passu with all current or future unsecured obligations of
the Corporate Taxpayer that are not Senior Obligations. For the avoidance of doubt, any amounts owed by the Corporate Taxpayer under this Agreement are not Senior Obligations. 

Section 5.2 Late Payments by the Corporate Taxpayer. The amount of all or any portion of any Tax
Benefit Payment, Early Termination Payment or other payment under this Agreement not made to the TRA Parties when due under the terms of this Agreement shall be payable together with any interest thereon, computed at the Default Rate and commencing
from the date on which such Tax Benefit Payment, Early Termination Payment or other payment was due and payable. 
 
ARTICLE VI 
 NO DISPUTES; CONSISTENCY; COOPERATION 

Section 6.1 Participation in the Corporate Taxpayer’s and the
Company’s Tax Matters. Except as otherwise provided herein, the Corporate Taxpayer shall have full responsibility for, and sole discretion over, all tax matters concerning the Corporate Taxpayer and the Company, including
without limitation the preparation, filing or amending of any Tax Return and defending, contesting or settling any issue pertaining to Covered Taxes. Notwithstanding the foregoing, the Corporate Taxpayer shall notify a TRA Party of, and keep the TRA
Party reasonably informed with respect to, the portion of any audit of the Corporate Taxpayer and the Company by a Taxing Authority the outcome of which is reasonably expected to affect the rights and obligations of such TRA Party under this
Agreement, and shall provide to each such TRA Party reasonable opportunity to provide information and other input to the Corporate Taxpayer, the Company and their respective advisors concerning the conduct of any such portion of such audit;
provided, however, that the Corporate Taxpayer and the Company shall not be required to take any action that is inconsistent with any provision of the LLC Agreement. 

Section 6.2 Consistency. The Corporate Taxpayer and the TRA Parties agree to report and cause to
be reported for all purposes, including federal, state, local, and non-U.S. tax purposes and financial reporting purposes, all Tax-related items (including, without
limitation, the Basis Adjustments and each Tax Benefit Payment) in a manner consistent with that specified by the Corporate Taxpayer in any Schedule required to be provided by or on behalf of the Corporate Taxpayer under this Agreement unless
otherwise required by law. 
 Section 6.3 Cooperation. Each of the Corporate Taxpayer and the
TRA Parties shall (a) furnish to the other party in a timely manner such information, documents and other materials as the other party may reasonably request for purposes of making any determination or computation necessary or appropriate under
this Agreement, preparing any Tax Return or contesting or defending any audit, examination or controversy with any Taxing Authority, (b) make itself available to the other party and its representatives to provide explanations of documents and
materials and such other information as the other party or its representatives may reasonably request in connection with any of the matters described in clause (a) above, and (c) reasonably cooperate in connection with any such matter, and
the Corporate Taxpayer shall reimburse each such TRA Party for any reasonable third-party costs and expenses incurred pursuant to this Section. 

Section 6.4 Tax Treatment of TRA Party Rights. The Parties acknowledge and hereby agree to treat for all tax reporting purposes
any payments made to a TRA Party (other than the Blocker Owners) under this Agreement: (i) such payments arising from the Sale or an Exchange, as money received within 

 
the meaning of Section 1001(b) of the Code for the applicable Common Units exchanged by such TRA Party in the Sale or such Exchange, in each case, except with respect to Imputed Interest.
The Parties shall for all tax reporting purposes treat such payments consistently with this Section 6.4 except upon a contrary final determination by an applicable Taxing Authority. 

Section 6.5 Tax Treatment of Blocker Owners Rights. The Parties acknowledge and hereby agree to treat for U.S. federal income tax
purposes any payments made to a Blocker Owner under this Agreement as additional consideration described as “other property” within the meaning of Section 356 of the Code pursuant to the applicable transaction in the Reorganizations,
except with respect to Imputed Interest. The Parties shall for all tax reporting purposes treat such payments consistently with this Section 6.5 except upon a contrary final determination by an applicable taxing authority. 

ARTICLE VII 

MISCELLANEOUS 
 
Section 7.1 Notices. All notices, requests, claims, demands and other communications hereunder shall be in writing and shall be deemed duly given and received (a) on the date of delivery if delivered personally, or by facsimile
or email with confirmation of transmission by the transmitting equipment or (b) on the first Business Day following the date of dispatch if delivered by a recognized next-day courier service. All notices
hereunder shall be delivered as set forth below, or pursuant to such other instructions as may be designated in writing by the party to receive such notice:If to the Corporate Taxpayer, to: 

If to the Corporate Taxpayer, to: 

Caliburn International Corporation 

[                ] 

Email: 
 Attention: 

with a copy (which shall not constitute notice to the Corporate Taxpayer) to: 

White & Case LLP 
 1221
Avenue of the Americas 
 New York, NY, 10020 

Email: 
 Attention: 

If to the TRA Parties, to: 
 The
address, fax number and email address set forth in the records of the Company. 

 Any party may change its address, fax number or email by giving the other party written
notice of its new address, fax number or email in the manner set forth above. 
 Section 7.2
Counterparts. This Agreement may be executed in one or more counterparts, all of which shall be considered one and the same agreement and shall become effective when one or more counterparts have been signed by each of the parties and
delivered to the other parties, it being understood that all parties need not sign the same counterpart. Delivery of an executed signature page to this Agreement by facsimile transmission shall be as effective as delivery of a manually signed
counterpart of this Agreement. 
 Section 7.3 Entire Agreement; No Third Party Beneficiaries.
This Agreement constitutes the entire agreement and supersedes all prior agreements and understandings, both written and oral, among the parties with respect to the subject matter hereof. Except to the extent provided under Section 3.3, this
Agreement shall be binding upon and inure solely to the benefit of each party hereto and their respective successors and permitted assigns, and nothing in this Agreement, express or implied, is intended to or shall confer upon any other Person any
right, benefit or remedy of any nature whatsoever under or by reason of this Agreement; provided, however, that (i) the Exchange Registration Holders and their respective successors and assigns are intended beneficiaries of
Section 7.6 and this Section 7.3; and (ii) each Non-Party Member and their respective successors and assigns are intended beneficiaries of Section 7.6 and this Section 7.3, in each
case, with the right to enforce such provisions against the Corporate Taxpayer as though such Exchange Registration Holders and such Non-Party Members (and their respective successors and assigns) were parties
hereto. 
 Section 7.4 Governing Law. This Agreement shall be governed by, and construed in
accordance with, the law of the State of Delaware, without regard to the conflicts of laws principles thereof that would mandate the application of the laws of another jurisdiction. 

Section 7.5 Severability. If any term or other provision of this Agreement is invalid, illegal or
incapable of being enforced by any law or public policy, all other terms and provisions of this Agreement shall nevertheless remain in full force and effect so long as the economic or legal substance of the transactions contemplated hereby is not
affected in any manner materially adverse to any party. Upon such determination that any term or other provision is invalid, illegal or incapable of being enforced, the parties hereto shall negotiate in good faith to modify this Agreement so as to
effect the original intent of the parties as closely as possible in an acceptable manner in order that the transactions contemplated hereby are consummated as originally contemplated to the greatest extent possible. 

Section 7.6 Successors; Assignment; Amendments; Waivers. 

(a) Each TRA Party, each Non-Party Member and each Exchange Registration Holder may assign any of its
rights under this Agreement in whole or in part to any Person as long as such transferee has executed and delivered, or, in connection with such transfer, executes and delivers, a joinder to this Agreement, in the form of Exhibit A or such other
form mutually agreed by the parties, agreeing to become a TRA Party for all purposes of this Agreement, except as otherwise provided in such joinder. To the extent that an Exchange Registration Holder Exchanges its interests in accordance with the
LLC Agreement or the Registration Rights Agreement, as applicable, then such Exchange Registration Holder shall have the right, in connection with such Exchange, to execute and deliver a joinder to this Agreement, substantially in the form of
Exhibit A, whereupon such Exchange Registration Holder shall become a TRA Party hereunder. 
 (b) From and after the date hereof, each Non-Party Member shall have the right to execute and deliver a joinder to this Agreement in the form of Exhibit A, whereupon such Non-Party Member shall become a TRA Party for
all purposes hereunder. 

 (c) No provision of this Agreement may be amended or waived unless such amendment or waiver
is approved in writing by the Corporate Taxpayer and the DC Capital Representative; provided that any amendment to, or waiver of, the definitions of Change of Control or Market Value, Section 4.1(a), Section 7.6(a) or this proviso to
Section 7.6(c) will also require the written approval of a majority of the Non-DC Capital Directors. Notwithstanding anything to the contrary in this Agreement (including this Section 7.6), (i) the
execution and delivery of a joinder to this Agreement pursuant to Section 7.6(a) or Section 7.6(b) shall not require the consent of the Corporate Taxpayer or the DC Capital Representative; (ii) any amendment to or waiver of
Section 7.3, Section 7.6(a) and this Section 7.6(c)(ii) will also require the consent of the holders of a majority of the issued and outstanding equity interests held by Exchange Registration Holders and (iii) any amendment to or
waiver of Section 7.3, Section 7.6(b) and this Section 7.6(c)(iii) will also require the consent of the holders of a majority of the issued and outstanding Common Units held by the Non-Party
Members. 
 (d) All of the terms and provisions of this Agreement shall be binding upon, shall inure to the benefit of and shall be
enforceable by the parties hereto and their respective successors, assigns, heirs, executors, administrators and legal representatives. The Corporate Taxpayer shall require and cause any direct or indirect successor (whether by purchase, merger,
consolidation or otherwise) to all or substantially all of the business or assets of the Corporate Taxpayer, by written agreement, expressly to assume and agree to perform this Agreement in the same manner and to the same extent that the Corporate
Taxpayer would be required to perform if no such succession had taken place. 
 Section 7.7 Titles
and Subtitles. The titles of the sections and subsections of this Agreement are for convenience of reference only and are not to be considered in construing this Agreement. 

Section 7.8 Resolution of Disputes. 

(a) Any and all disputes which are not governed by Section 7.9 and cannot be settled amicably, including any ancillary claims of any
party, arising out of, relating to or in connection with the validity, negotiation, execution, interpretation, performance or nonperformance of this Agreement (including the validity, scope and enforceability of this arbitration provision) (each a
“Dispute”) shall be finally settled by arbitration conducted by a single arbitrator in New York in accordance with the then-existing Rules of Arbitration of the International Chamber of Commerce. If the parties to the Dispute fail
to agree on the selection of an arbitrator within ten (10) calendar days of the receipt of the request for arbitration, the International Chamber of Commerce shall make the appointment. The arbitrator shall be a lawyer admitted to the practice
of law in the State of New York and shall conduct the proceedings in the English language. Performance under this Agreement shall continue if reasonably possible during any arbitration proceedings. 

(b) Notwithstanding the provisions of paragraph (a), the Corporate Taxpayer may bring an action or special proceeding in any court of
competent jurisdiction for the purpose of compelling a party to arbitrate, seeking temporary or preliminary relief in aid of an arbitration hereunder, and/or enforcing an arbitration award and, for the purposes of this paragraph (b), the TRA Party
(i) expressly consents to the application of paragraph (c) of this Section 7.8 to any such action or proceeding, (ii) agrees that proof shall not be required that monetary damages for breach of the provisions of this Agreement
would be difficult to calculate and that remedies at law would be inadequate, and (iii) irrevocably appoints the Corporate Taxpayer as agent of the TRA Party for service of process in connection with any such action or proceeding and agrees
that service of process upon such agent, who shall promptly advise the TRA Party of any such service of process, shall be deemed in every respect effective service of process upon the TRA Party in any such action or proceeding. 

(i) EACH PARTY HEREBY IRREVOCABLY SUBMITS TO THE JURISDICTION OF COURTS LOCATED IN NEW YORK, NEW YORK FOR THE PURPOSE OF ANY JUDICIAL
PROCEEDING 

 
BROUGHT IN ACCORDANCE WITH THE PROVISIONS OF THIS SECTION 7.8, OR ANY JUDICIAL PROCEEDING ANCILLARY TO AN ARBITRATION OR CONTEMPLATED ARBITRATION ARISING OUT OF OR RELATING TO OR CONCERNING THIS
AGREEMENT. Such ancillary judicial proceedings include any suit, action or proceeding to compel arbitration, to obtain temporary or preliminary judicial relief in aid of arbitration, or to confirm an arbitration award. The parties acknowledge that
the for a designated by this paragraph (c) have a reasonable relation to this Agreement, and to the parties’ relationship with one another; and 

(ii) The parties hereby waive, to the fullest extent permitted by applicable law, any objection which they now or hereafter may have to
personal jurisdiction or to the laying of venue of any such ancillary suit, action or proceeding brought in any court referred to in the preceding paragraph of this Section 7.8 and such parties agree not to plead or claim the same. 

Section 7.9 Reconciliation. In the event that the Corporate Taxpayer and a DC Capital Party are
unable to resolve a disagreement with respect to the matters governed by Sections 2.3, 3.1, 4.2 or 6.2 within the relevant period designated in this Agreement (“Reconciliation Dispute”), the Reconciliation Dispute shall be submitted
for determination to a nationally recognized expert (the “Expert”) in the particular area of disagreement mutually acceptable to both parties. The Expert shall be a partner or principal in a nationally recognized accounting or law
firm, and unless the Corporate Taxpayer and the DC Capital Party agree otherwise, the Expert shall not, and the firm that employs the Expert shall not, have any material relationship with the Corporate Taxpayer or the DC Capital Party or other
actual or potential conflict of interest. If the Corporate Taxpayer and the DC Capital Party are unable to agree on an Expert within fifteen (15) calendar days of receipt by the respondent(s) of written notice of a Reconciliation Dispute, the
Expert shall be appointed by the International Chamber of Commerce Centre for Expertise. The Expert shall resolve any matter relating to the Exchange Schedule or an amendment thereto or the Early Termination Schedule or an amendment thereto within
thirty (30) calendar days and shall resolve any matter relating to a Tax Benefit Schedule or an amendment thereto within fifteen (15) calendar days or as soon thereafter as is reasonably practicable, in each case after the matter has been
submitted to the Expert for resolution. Notwithstanding the preceding sentence, if the matter is not resolved before any payment that is the subject of a disagreement would be due (in the absence of such disagreement) or any Tax Return reflecting
the subject of a disagreement is due, the undisputed amount shall be paid on the date prescribed by this Agreement and such Tax Return may be filed as prepared by the Corporate Taxpayer, subject to adjustment or amendment upon resolution. The costs
and expenses relating to the engagement of such Expert or amending any Tax Return shall be borne by the Corporate Taxpayer except as provided in the next sentence. The Corporate Taxpayer and the DC Capital Party shall bear their own costs and
expenses of such proceeding, unless (i) the Expert adopts the DC Capital Party’s position, in which case the Corporate Taxpayer shall reimburse the DC Capital Party for any reasonable out-of-pocket costs and expenses in such proceeding, or (ii) the Expert adopts the Corporate Taxpayer’s position, in which case the DC Capital Party shall reimburse the Corporate Taxpayer for any
reasonable out-of-pocket costs and expenses in such proceeding. Any dispute as to whether a dispute is a Reconciliation Dispute within the meaning of this
Section 7.9 shall be decided by the Expert. The Expert shall finally determine any Reconciliation Dispute and the determinations of the Expert pursuant to this Section 7.9 shall be binding on the Corporate Taxpayer and the DC Capital Party
and may be entered and enforced in any court having jurisdiction. 
 Section 7.10 Withholding.
The Corporate Taxpayer shall be entitled to deduct and withhold from any payment payable pursuant to this Agreement such amounts as the Corporate Taxpayer is required to deduct and withhold with respect to the making of such payment under the Code
or any provision of state, local or foreign tax law. To the extent that amounts are so withheld and paid over to the appropriate Taxing Authority by the Corporate Taxpayer, such withheld amounts shall be treated for all purposes of this Agreement as
having been paid to the Person in respect of whom such withholding was made. 

 Section 7.11 Admission of the Corporate Taxpayer
into a Consolidated Group; Transfers of Corporate Assets. 
 (a) If the Corporate Taxpayer is or becomes a member of an affiliated or
consolidated group of corporations that files a consolidated income tax return pursuant to Sections 1501 et seq. of the Code or any corresponding provisions of state or local law, then: (i) the provisions of this Agreement shall be applied with
respect to the group as a whole; and (ii) Tax Benefit Payments, Early Termination Payments and other applicable items hereunder shall be computed with reference to the consolidated taxable income of the group as a whole. 

(b) If any entity that is obligated to make a Tax Benefit Payment or Early Termination Payment hereunder transfers one or more assets to a
corporation (or a Person classified as a corporation for United States federal income tax purposes) with which such entity does not file a consolidated tax return pursuant to Section 1501 of the Code, such entity, for purposes of calculating
the amount of any Tax Benefit Payment or Early Termination Payment (e.g., calculating the gross income of the entity and determining the Realized Tax Benefit of such entity) due hereunder, shall be treated as having disposed of such asset in a fully
taxable transaction on the date of such contribution. The consideration deemed to be received by such entity shall be equal to the gross fair market value of the contributed asset. For purposes of this Section 7.11, a transfer of a partnership
interest shall be treated as a transfer of the transferring partner’s share of each of the assets and liabilities of that partnership allocated to such partner. 

Section 7.12 Confidentiality. 

(a) Each TRA Party and each of their assignees acknowledge and agree that the information of the Corporate Taxpayer is confidential and, except
in the course of performing any duties as necessary for the Corporate Taxpayer and its Affiliates, as required by law or legal process or to enforce the terms of this Agreement, such person shall keep and retain in the strictest confidence and not
disclose to any Person any confidential matters, acquired pursuant to this Agreement, of the Corporate Taxpayer and its Affiliates and successors, concerning the Company and its Affiliates and successors or the TRA Parties, learned by the TRA Party
heretofore or hereafter. This Section 7.12 shall not apply to (i) any information that has been made publicly available by the Corporate Taxpayer or any of its Affiliates, becomes public knowledge (except as a result of an act of the TRA
Party in violation of this Agreement) or is generally known to the business community and (ii) the disclosure of information to the extent necessary for the TRA Party to prepare and file its Tax Returns, to respond to any inquiries regarding
the same from any Taxing Authority or to prosecute or defend any action, proceeding or audit by any Taxing Authority with respect to such returns. Notwithstanding anything to the contrary herein, each TRA Party and each of their assignees (and each
employee, representative or other agent of the TRA Party or its assignees, as applicable) may disclose to any and all Persons, without limitation of any kind, the tax treatment and tax structure of the Corporate Taxpayer, the Company and their
Affiliates, and any of their transactions, and all materials of any kind (including opinions or other tax analyses) that are provided to the TRA Party relating to such tax treatment and tax structure. 

(b) If a TRA Party or an assignee commits a breach, or threatens to commit a breach, of any of the provisions of this Section 7.12, the
Corporate Taxpayer shall have the right and remedy to have the provisions of this Section 7.12 specifically enforced by injunctive relief or otherwise by any court of competent jurisdiction without the need to post any bond or other security,
it being acknowledged and agreed that any such breach or threatened breach shall cause irreparable injury to the Corporate Taxpayer or any of its Subsidiaries or the TRA Parties and the accounts and funds managed by the Corporate Taxpayer and that
money damages alone shall not provide an adequate remedy to such Persons. Such rights and remedies shall be in addition to, and not in lieu of, any other rights and remedies available at law or in equity. 

 Section 7.13 LLC Agreement. This Agreement
shall be treated as part of the partnership agreement of the Company as described in Section 761(c) of the Code and Sections 1.704-1(b)(2)(ii)(h) and 1.761-1(c) of
the Treasury Regulations. 
 [The remainder of this page is intentionally blank] 

 IN WITNESS WHEREOF, the Corporate Taxpayer and each TRA Party have duly executed this
Agreement as of the date first written above. 
  

			
	CALIBURN INTERNATIONAL CORPORATION

 
			
		
	By:	 	  

	Name:	 	
	Title:	 	

 [Signature Page to Tax Receivable Agreement] 

 
			
	[                                ].
		
	By:	 	
		
	By:	 	

 
			
		
	By:	 	  

	Name:	 	
	Title:	 	

 [Tax Receivable Agreement signature page] 

 IN WITNESS WHEREOF, the Corporate Taxpayer and each TRA Party have duly executed this
Agreement as of the date first written above. 
  

			
	[                ]
		
	By:	 	

 
			
		
	By:	 	  

	Name:	 	
	Title:	 	

 [Signature Page to Tax Receivable Agreement] 

 IN WITNESS WHEREOF, the Corporate Taxpayer and each TRA Party have duly executed this
Agreement as of the date first written above. 
  

			
	[                    ]

 
			
		
	By:	 	  

	Name:	 	
	Title:	 	

 [Signature Page to Tax Receivable Agreement] 

 Exhibit A 

Form of Joinder 
 This
JOINDER (this “Joinder”) to the Tax Receivable Agreement (as defined below), dated as of             , by and among Caliburn International Corporation, a Delaware
corporation (together with its Subsidiaries that are consolidated for U.S. federal income tax purposes (the “Corporate Taxpayer”), and (“Permitted Transferee”). 

WHEREAS, on             , Permitted Transferee acquired (the
“Acquisition”) [Common Units and the corresponding shares of Class B Common Stock]1 [the right to receive any and all payments that may become due and payable under the Tax
Receivable Agreement with respect to Common Units that were previously Exchanged or acquired pursuant to the Sale and are described in greater detail in Annex A to this Joinder] (collectively, “Interests” and, together with all
other interests hereinafter acquired by the Permitted Transferee from Transferor, the “Acquired Interests”) from (“Transferor”); and 

WHEREAS, Transferor, in connection with the Acquisition, has required Permitted Transferee to execute and deliver this Joinder pursuant to
Section 7.6(a) or Section 7.6(b) of the Tax Receivable Agreement, dated as of [            ], 2018, by and among the Corporate Taxpayer and each TRA Party (as defined therein)
(the “Tax Receivable Agreement”). 
 NOW, THEREFORE, in consideration of the foregoing and the respective covenants and
agreements set forth herein, and intending to be legally bound hereby, the parties hereto agree as follows: 
 Section 1.01
Definitions. To the extent capitalized words used in this Joinder are not defined in this Joinder, such words shall have the respective meanings set forth in the Tax Receivable Agreement. 

Section 1.02 Joinder. Permitted Transferee hereby acknowledges and agrees to become a “TRA Party” (as defined in the Tax
Receivable Agreement) for all purposes of the Tax Receivable Agreement. 
 Section 1.03 Notice. Any notice, request, consent,
claim, demand, approval, waiver or other communication hereunder to Permitted Transferee shall be delivered or sent to Permitted Transferee at the address set forth on the signature page hereto in accordance with Section 7.1 of the Tax
Receivable Agreement. 
 Section 1.04 Governing Law. This Joinder shall be governed by and construed in accordance with the
laws of the State of New York, without regard to the conflicts of laws principals thereof that would mandate the application of the laws of another jurisdiction. 

 

	1 	 To fix the cross-reference 

 IN WITNESS WHEREOF, this Joinder has been duly executed and delivered by Permitted
Transferee as of the date first above written. 
  

			
	[PERMITTED TRANSFEREE]

 
			
		
	By:	 	  

	Name:	 	
	Title:	 	
	
	Address for notices:

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