Document:

Exhibit
10.17(d)

 

CONFIDENTIAL

 

RETENTION
AGREEMENT

 

THIS
RETENTION AGREEMENT (this “Agreement”), dated as of July 8, 2020, by and between Brooklyn Immunotherapeutics
LLC, a Delaware limited liability company (the “Company”), and Lynn Mason (the “Employee”),
provides:

 

WHEREAS,
the Employee is a key employee of the Company; and

 

WHEREAS,
the parties desire to enter into this Agreement in order to induce Employee to continue Employee’s employment with the
Company.

 

NOW,
THEREFORE, for and in consideration of the mutual covenants and promises contained herein and for other good and valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto hereby agree as follows:

 

1.
Consideration.

 

(a)
In consideration of the Employee’s continuing full and faithful performance of Employee’s duties as an employee of
the Company for a period commencing as of the date hereof and ending on January 8, 2021 (the “Initial Retention Period”),
the Company agrees to pay to the Employee, in addition to the Employee’s regular compensation and subject to the provisions
of subsection 1(b) below, the lump sum of Two Hundred Thousand Dollars ($200,000.00) within thirty (30) days after January 8,
2021 (the “Initial Retention Payment”), in accordance with the Company’s payroll practices, in order
to induce the Employee to remain in the employ of the Company for the entirety of the Initial Retention Period. The Initial Retention
Payment shall be subject to payroll taxes and other withholdings required by applicable law.

 

(b)
In the event (i) Employee’s employment with the Company is terminated prior to the end of the Initial Retention Period (A)
by the Company for “Cause” (as defined in Section 5 of the Employee’s October 30, 2018 Letter Agreement with
the Company) or (B) due to the Employee’s resignation for any reason, or (ii) Employee does not perform Employee’s
duties assigned by the Company, the Employee shall not be entitled to the Initial Retention Payment. In the event Employee’s
employment with the Company is terminated prior to the end of the Initial Retention Period by the Company without “Cause”
or upon the death or disability of Employee, the Company shall pay Employee the Initial Retention Payment. For purposes of this
Agreement and the October 30, 2018 Letter Agreement, the parties agree that “disability” shall mean the inability
of the Employee to perform Employee’s essential duties and obligations as an employee of the Company to the reasonable satisfaction
of the Company, with or without a reasonable accommodation, due to a mental or physical impairment (as determined by a practicing
medical doctor satisfactory to the Company)

 

(c)
The Company may unilaterally elect a Second Retention Period from January 8, 2021 to July 8, 2021. Should the Company do so, the
same terms and conditions of Sections 1(a)-1(b) shall apply to the Second Retention Period. The Company will pay the Employee
a lump sum of Two Hundred Thousand Dollars ($200,000.00) within thirty (30) days after July 8, 2021, as long as the Employee’s
employment was not previously terminated for “Cause” or due to the Employee’s resignation or Employee’s
failure to perform assigned duties.

 

(d)
Nothing in this Agreement is intended to or shall be construed to create a contract of employment for any specific duration. Employee’s
employment with the Company may be terminated by either the Employee or the Company at any time with or without Cause, as employment
is expressly continued to be employment at will.

 

    	 

    	 

    

 

2.
Notices. All notices required in connection with this Agreement shall be in writing and shall be deemed to have been
duly given if delivered personally, sent by receipted overnight courier or mailed, postage prepaid, registered or certified mail,
to the following addresses or at such other addresses as the Company or the Employee may designate from time to time in writing:

 

	If
        to the Employee:

         

        Lynn
        Mason

        

        
	If
        to the Company:

         

        Brooklyn
        Immunotherapeutics LLC

        140
        58th Street

        Building
        A, Suite 2100

        Brooklyn,
        NY 11220

 

3.
Governing Law/Arbitration. This Agreement shall be construed in accordance with and be governed by the internal laws
of the State of New York, without regard to the choice of law principles of any jurisdiction. The parties agree that any dispute
arising out of or related to this Agreement shall be resolved by final and binding arbitration under the auspices of the American
Arbitration Association. This agreement to arbitrate waives the parties’ rights to litigate their disputes in court or receive
a jury trial.

 

4.
Assignment. The Employee acknowledges that this Agreement is a contract for the Employee’s personal services,
and, therefore, it is not assignable by the Employee. The Company may, at its discretion, assign this Agreement to any successor
to its assets or stock as a consequence of merger or acquisition. This Agreement shall be enforceable by the parties’ successors
and permitted assigns. Following an assignment by the Company, all references herein to “the Company” shall be deemed
to apply to the Company’s successors and assigns, and all rights and privileges granted the Company hereunder shall be deemed
granted to the Company’s successors or assigns.

 

5.
Headings. The section headings contained herein are for reference purposes only and shall not in any way affect the
meaning or interpretation of this Agreement.

 

6.
Amendment, Modification and Waiver; Third Party Beneficiaries. This Agreement may be amended, modified, superseded
or canceled only by a written instrument executed by the Employee and the Company. The waiver by any party of any breach of any
provision shall not be construed as a waiver of any other provision by such party. Each party shall have the right to waive fulfillment
of a covenant of which it is the beneficiary, but such waiver may be made only by written instrument executed by such party. No
extension of time for performance of any obligations or other acts hereunder shall be deemed to be an extension of the time for
performance of any other obligations or any other acts. Any change in the position of the Employee shall not affect or change
any obligations under this Agreement. Nothing expressed or implied herein shall be construed to give any other individual or entity
(any legal or equitable rights hereunder.

 

7.
Integration. This Agreement does not supersede the Employee’s October 30, 2018 Letter Agreement with the Company,
including Attachment A thereto (as amended by the parties’ March 12, 2020 Amendment To Employment Agreement), which shall
continue in full force and effect. Otherwise, this Agreement is the entire agreement between the parties concerning the subject
matter hereof, and supersedes any other prior or contemporaneous agreements, understandings, or arrangements concerning such subject
matter.

 

8.
Miscellaneous.

 

(a)
The prevailing party shall be entitled to recover reasonable attorneys’ fees and litigation costs fixed by the arbitrator.

 

(b)
This Agreement shall be interpreted according to the fair and common meaning of its terms and shall not be construed in favor
of, or against, either of the parties hereto by reason of the extent to which this Agreement or any such provision hereof (i)
is inconsistent with any prior draft hereof or (ii) was drafted by one party or the other to this Agreement.

 

(c)
Employee acknowledges that Employee has been given the opportunity to have her own attorney review this Agreement prior to signing
it and that Employee has read and understands this Agreement.

 

9.
Counterparts. This Agreement may be executed and delivered in multiple original, facsimile or electronic counterparts
(including via PDF), each of which will be deemed an original, but all of which when taken together shall constitute one and the
same agreement.

 

    	 

    	 

    

 

WITNESS
the following signatures:

 

	 	EMPLOYEE:
	 	 	 
	 	/s/
    Lynn Mason
	 	Lynn
    Mason
	 	 	 
	 	Brooklyn
    Immunotherapeutics LLC
	 	 	
	 	By:	/s/
    Charles Cherington
	 	Print
    Name: 	Charles
    Cherington
	 	Title:
    	Authorized
    SignatoryExhibit
10.18

 

UNIT
RESTRICTION AGREEMENT

 

This
UNIT RESTRICTION AGREEMENT (this “Agreement”) is made and entered into as of November 5, 2018 by and
between Brooklyn lmmunotherapeutics LLC a Delaware limited liability company (the “Company”) and Luba
Greenwood (“Consultant”).

 

Introduction

 

The
Company is issuing to Consultant on the date hereof a profits interest represented by 250 Common Units, as defined and described
in the Company’s Limited Liability Company Agreement (as amended, restated, modified or supplemented from time to time,
the “LLC Agreement”), which Units represent 0.25% of the Common Units of the Company as of the date
hereof, (collectively, the “Units”). The Units are intended to be “profits interests” for
U.S. Federal income tax purposes. It is a condition of the issuance of the Units that Consultant enter into this Agreement and,
to the extent Consultant is not already a party thereto, execute a supplemental signature page to the LLC Agreement pursuant to
which Consultant becomes a party to the LLC Agreement and agrees to be bound by all of the provisions thereof as a “Member”
thereunder. Capitalized terms used in this Agreement without definition shall have the meanings given to them in the LLC Agreement.

 

This
Agreement is intended to constitute the grant of a “partnership profits interest for services provided to or for the benefit
of the Company” by Consultant, as contemplated by Revenue Procedure 9327 as clarified by Revenue Procedure 2001-43. The
issuance of the Units is not intended to entitle Consultant to a distribution of the Company’s profits and gains accrued
prior to the date hereof. The Distribution Threshold applicable to the Units is $100,000,000.

 

NOW,
THEREFORE, in consideration of services to be rendered by Consultant to the Company and its subsidiaries and for other good and
valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties agree as follows:

 

1.
Issuance of Units; Vesting and Forfeiture of Units.

 

(a)
Issuance of Units; Acceptance of LLC Agreement. The Company hereby issues to Consultant, and Consultant hereby accepts
from the Company, the Units. Consultant hereby acknowledges receipt of a copy of the LLC Agreement and agrees to be bound by all
of the terms and conditions of the LLC Agreement including, without limitation, those contained in Section 3.5 thereof.

 

(b)
Forfeiture. At such time, or from time to time, when it is determinable that some or all of the Units will not vest in
accordance with Section 1 (c) of this Agreement, the Units that will not vest will be deemed automatically, and without further
action by any party hereto, to be forfeited and returned to the Company and will no longer be outstanding. Consultant shall cause
all such forfeited Units to be free and clear of all liens, restrictions, security interests and encumbrances, except for restrictions
under this Agreement and the LLC Agreement.

 

    	1

     

    

 

(c)
Vesting.

 

(i)
Time Based Vesting. Subject to the other provisions of this Section l(c), 25% of the Units shall vest immediately as of
the date hereof, and the remainder of the Units shall vest on a straight line basis, 6.25% on the last day of each succeeding
fiscal quarter following the first anniversary of the date hereof, until the fourth anniversary of the date hereof (when all Units
unvested as of such date shall vest), so long as Consultant is a consultant of a Related Company through and on each such date.

 

(ii)
Sale or Public Offering. 100% of the Units shall become vested if Consultant is a consultant of a Related Company at the
time of a Sale or the sale by the Company (or any successor) of securities in a Public Offering.

 

(iii)
Termination of Services. Notwithstanding any other provision in this Agreement to the contrary: (A) no Units will vest
after termination of Consultant’s services, for any reason; (B) if Consultant’s services are terminated by
a Related Company for Cause, none of the Units will thereafter be considered vested (including any portion thereof that had previously
vested under any other provision of this Agreement); and (C) if the services of Consultant terminate for any reason other than
as set forth in the forgoing clause (B), then the portion of the Units which had vested as of the date on which Consultant’s
services terminated shall remain vested. Cause’’, with respect to a Consultant, shall mean (A) the meaning
specified in the consulting agreement between such Person and a Related Company, or (B) if there is no such consulting agreement
(or if no such meaning is specified therein), the good faith determination of the Management Board that such Person has: (1) breached
any fiduciary duty or legal or contractual obligation to any Related Company or to the Company’s direct or indirect equity
holders and has failed to cure such breach within 10 days of being notified thereof (if such breach is susceptible to cure), or
engaged in conduct tending to bring a Related Company into substantial public disgrace or disrepute; (2) failed to perform such
Consultant Member’s material duties to any Related Company; (3) engaged in insubordination, willful misconduct, a willful
violation of any material law, fraud, embezzlement, acts of disloyalty or dishonesty, or a conflict of interest relating to the
affairs of any Related Company; or (4) been convicted of or pleaded nolo contendere to (y) any. misdemeanor relating to
the affairs of any Related Company or (z) any felony.

 

2.
Restrictions on Transfer; Transferees of Consultant. Notwithstanding anything to the contrary contained herein, Consultant
may not transfer any Units (except to the Company) unless such transfer is made in compliance with the LLC Agreement and the Person
acquiring such Units shall first become a signatory to this Agreement and the LLC Agreement, agreeing to be bound by all the terms
hereof and thereof to the same extent as Consultant. All Units so transferred will remain subject to the restrictions contained
herein in the hands of the transferee as if such Units were still held by Consultant. The forfeiture of Units hereunder shall
include the forfeiture of a proportionate number of Units from Consultant and each of Consultant’s transferees. The Company
shall not transfer any Units on its books which shall have been sold, assigned or otherwise transferred in violation of this Agreement
or the LLC Agreement, or treat as owner of such Units, or accord the right to vote as such owner or pay distributions to, any
Person to whom any such Units shall have been sold, assigned or otherwise transferred, from and after any sale, assignment or
transfer of any Units made in violation of this Agreement or the LLC Agreement.

 

    	2

     

    

 

3.
Conversion of Units, Reclassification, Etc. Upon conversion of the Units into shares of common stock of the Company or
its successor corporation pursuant to the terms of the LLC Agreement or otherwise, this Agreement shall continue in effect with
such adjustments as are appropriate to reflect the corporate forth of the Company, as determined by the Management Board. In the
event of any dividend, split, combination, recapitalization, reorganization or a similar transaction affecting the then outstanding
Units, including, without limitation, pursuant to Clause 3.3(f) of the LLC Agreement, any new substituted or additional securities
or other property which by reason of such transaction are distributed with respect to any Units shall immediately be subject to
the restrictions set forth in this Agreement.

 

4.
No Retention Rights. Nothing in this Agreement shall confer upon Consultant any right to continue to perform services for
any Related Company for any period of specific duration or interfere with or otherwise restrict in any way the rights of a Related
Company or of Consultant, which right are hereby expressly reserved by each, to terminate Consultant’s services at any time
and for any reason, with or without Cause.

 

5.
Affirmation of Covenants. Consultant hereby reaffirms all confidentiality, noncompetition, nonsolicitation or similar covenants
made by Consultant in favor of the Related Companies and acknowledges that all such covenants (including, without limitation,
those contained in the LLC Agreement) are independent and continuing obligations of Consultant.

 

6.
Reserved.

 

7.
Binding Effect. Subject to the transfer restrictions contained herein and in the LLC successors and assigns and shall inure
to the benefit of the· Company and its successors and assigns.

 

8.
Notices. All notices, demands and communications under this Agreement shall be made in accordance with Section 8.16 of
the LLC Agreement.

 

9.
Amendments; Waivers. This Agreement may only be amended or modified in a writing signed by Consultant and the Company.
No waiver of this Agreement or any provision hereof shall be binding upon the party against whom enforcement of such waiver is
sought unless it is made in writing and signed by or on behalf of such party. The waiver by either party of a breach of any provision
of this Agreement by the other party shall not operate or be construed as a waiver or a continuing waiver by that party of the
same or any subsequent breach of any provision of this Agreement by the other party. No delay or omission by any party in exercising
any right under this Agreement shall operate as a waiver of that or any other right.

 

10.
Counterparts; Captions. This Agreement may be executed in counterparts, each of which shall be deemed an original, but
all of which when taken together shall constitute one and the same instrument. Counterpart signature pages to this Agreement transmitted
by facsimile transmission, by electronic mail in “portable document format’’ (“.pdf”)
form, or by any other electronic means intended to preserve the original graphic and pictorial appearance of a document, will
have the same effect as physical delivery of the paper document bearing an original signature. The captions of the sections of
this Agreement are for convenience of reference only and in no way define, limit or affect the scope or substance of any section
of this Agreement.

 

    	3

     

    

 

11.
Governing Law; Severability; Forum. This Agreement shall be construed, interpreted and enforced in accordance with the
laws of the State of Delaware, without regard to its conflicts of law principles. Wherever possible, each provision of this Agreement
(including those incorporated by reference from the LLC Agreement) shall be interpreted in such manner as to be effective and
valid under applicable law, but if any provision hereof shall be prohibited by or invalid under any such law, such provision shall
be ineffective only to the extent of such prohibition or invalidity, without invalidating or nullifying the remainder of such
provision or any other provisions of this Agreement. If any one or more of the provisions contained in this Agreement shall for
any reason be held to be excessively broad as to duration, geographical scope, activity or subject, such provisions shall be construed
by limiting and reducing it so as to be enforceable to the maximum extent permitted by applicable law. Any proceeding arising
out of or relating to this Agreement shall be brought in Massachusetts or, if it has or can acquire jurisdiction, in the United
States District Court in Massachusetts. This provision may be filed with any court as written evidence of the knowing and voluntary
irrevocable agreement among the parties to waive any objection to jurisdiction, to venue or to convenience of forum.

 

12.
Entire Agreement. The provisions of the LLC Agreement including without limitation, the investment representations contained
in Section 8.22 thereof, are hereby incorporated by reference and, if not already a party thereto, Consultant shall become a party
thereto upon execution of this Agreement. Thereafter,. Consultant will be included in the definition of “Member” in
the LLC Agreement, and the Register will be revised to reflect the issuance of the Units hereunder. This Agreement and the LLC
Agreement constitute the entire agreement between the parties hereto with regard to the subject matter hereof and supersede any
other agreements, representations or understandings (whether oral or written and whether express or implied) relating to the subject
matter hereof.

 

13.
No Strict Construction. The parties have participated jointly in the negotiation and drafting of this Agreement. In the
event an ambiguity or question of intent or interpretation arises under any provision of this Agreement or any other agreement
or document contemplated herein, this Agreement and such other agreements and documents will be construed as if drafted jointly
by the parties thereto, and no presumption or burden of proof shall arise favoring or disfavoring any party by virtue of authoring
any of the provisions of this Agreement or any other agreements or documents contemplated herein.

 

14.
WAIVER OF JURY TRIAL. EACH PARTY HERETO WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY RIGHT IT MAY .HAVE
TO A TRIAL BY JURY IN RESPECT OF ANY LITIGATION AS BETWEEN THE PARTIES DIRECTLY OR INDIRECTLY ARISING OUT OF, UNDER OR IN CONNECTION
WITH THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY OR DISPUTES RELATING HERETO. EACH OF THE PARTIES HERETO (A) CERTIFIES
THAT NO REPRESENTATIVE, AGENT OR ATTORNEY OF THE OTHER PARTY HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT SUCH OTHER PARTY WOULD
NOT, IN THE EVENT OF LITIGATION, SEEK TO ENFORCE THE FOREGOING WAIVER AND (B) ACKNOWLEDGES THAT IT AND THE OTHER PARTY HAVE BEEN
INDUCED TO ENTER INTO THIS AGREEMENT BY, AMONG OTHER THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS CONTAINED IN THIS SECTION 14.

 

    	4

     

    

 

15.
Tax Election. The acquisition of the Units pursuant to this Agreement may result in adverse tax consequences that may be
avoided or mitigated by filing an election under Code Section 83(b) (attached hereto as Exhibit A). Under current
law, such election may be filed only within 30 days after the date on which Consultant acquires the Units. CONSULTANT SHOULD
CONSULT WITH CONSULTANT’S TAX ADVISOR TO DETERMINE THE TAX CONSEQUENCES OF ACQUIRING THE UNITS AND THE ADVANTAGES AND DISADVANTAGES
OF FILING THE CODE SECTION 83(B) ELECTION. CONSULTANT ACKNOWLEDGES THAT IT IS CONSULTANT’S SOLE RESPONSIBILITY, AND NOT
THAT OF THE COMPANY OR ITS REPRESENTATIVES, TO FILE A TIMELY ELECTION UNDER CODE SECTION 83(B), EVEN IF CONSULTANT REQUESTS THE
COMPANY OR ITS REPRESENTATIVES TO MAKE THIS FILING ON CONSULTANT’S BEHALF.

 

[The
remainder of this page is intentionally left blank.]

 

    	5

     

    

 

IN
WITNESS WHEREOF, this Agreement has been executed as a sealed instrument as of the date first above written

 

	 	BROOKLYN
    IMMUNOTHERAPEUTICS LLC 
	 	 	 
	 	By:	/s/
    Charles R. Cherington              
	 	Name:	Charles
    R. Cherington
	 	Title:
    	Manager

 

	 	/s/
    Luba Greenwood 
	 	Luba
    Greenwood

 

    	6

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