Exhibit 10.5


 





SPONSOR STOCKHOLDER SUPPORT AGREEMENT


 


This Sponsor Stockholder Support Agreement,
dated as of June 13, 2022 (this “Agreement”), is made by and among:


 


	(1)	MacArthur Court Acquisition Corp., a California corporation (the “Seller”);


 


	(2)	Excelera DCE, a California corporation (the “Company”);


 


	(3)	Future Health ESG Corp., a Delaware corporation (“SPAC”);


 


	(4)	Future Health ESG Associates 1, LLC, a Delaware limited liability company
    (“Sponsor”); and


 


	(5)	the undersigned investors in SPAC (the “Investors”,
and together with the Sponsor, the “SPAC Holders”).



 


Whereas:


 


	(A)	concurrently with the entry into this Agreement, the Seller, the Company and SPAC,
    are entering into that certain Business Combination Agreement and Plan of Reorganization (as amended and/or restated from time to
    time, the “BCA”), which provides for, among other things, a business combination among SPAC and the Company pursuant
    to which the issued and outstanding shares in the Company shall be exchanged for shares of SPAC Common Stock;


 


	(B)	as of the date hereof, the SPAC Holders own beneficially and/or of record those
    SPAC Securities set forth opposite such SPAC Holder’s name as set forth on Schedule A hereto; and


 


	(C)	in order to induce the Seller and the Company to enter into the BCA, and consummate
    the transactions contemplated by the BCA (the “Transactions”), each of the SPAC Holders and SPAC desire to enter
    into this Agreement;


 


Now, therefore, in consideration of the
foregoing and of the mutual covenants and agreements contained herein and in the BCA, the receipt and sufficiency of which are hereby
acknowledged, the parties hereto agree as follows:


 


	1	Definitions


 


	1.1	Capitalized terms used herein shall have the respective meanings given to them in
    this Agreement, or if not defined herein, as set forth in the BCA.


 


	1.2	As used herein, the following terms shall have the respective meanings set forth
    below:


 






     


     


    

  


“Beneficially Own”
has the meaning given to such term under Rule 13d-3 of the Exchange Act.


 


“Common Shares” means
each share of SPAC Common Stock, including the Founder Shares, held by the Investors or the Sponsor, whether now held or acquired after
the date hereof and whether held of record or Beneficially Owned. 


 


“Founder Shares”
means each share of SPAC Common Stock held by the Investors or the Sponsor which were issued to the Investors or the Sponsor prior to
SPAC’s initial public offering.


 


“SPAC Common Stock”
means SPAC’s common stock, par value $0.0001 per share.


 


“SPAC Securities”
means each of the Common Shares, SPAC Units and SPAC Warrants held by the Investors or the Sponsor.


 


“SPAC Unit”
means SPAC’s units, with each unit consisting of one share of SPAC Common Stock and one-half of one SPAC Warrant.


 


“SPAC Warrant Agreements”
means those certain warrant agreements dated September 9, 2021 by and between SPAC and Continental Stock Transfer & Trust Company.


 


“SPAC Warrants”
means whole warrants to purchase shares of SPAC Common Stock as contemplated under the SPAC Warrant Agreements, with each whole warrant
exercisable for one share of SPAC Common Stock at an exercise price of $11.50.


 


“Transfer” means
to, directly or indirectly, sell, transfer, assign, pledge, encumber, hypothecate, or similarly dispose of, either voluntarily or involuntarily,
to grant any proxies or powers of attorney with respect to, or to enter into any contract, option or other arrangement or understanding
with respect to the sale, transfer, assignment, pledge, encumbrance, hypothecation or similar disposition of, in each case, any interest
owned by a person or any interest (including a beneficial interest) in, or the ownership, control or possession of, any interest owned
by a person.


    


	2	Voting Obligations


 


	2.1	From the date hereof until the earlier of (i) the Closing and (ii) termination of
    the BCA in accordance with Article IX thereof (such period, the “Interim Period”), such SPAC Holder, in his, her
    or its capacity as a holder of Common Shares, severally and not jointly, agrees irrevocably, for so long as this Agreement has not
    been terminated in accordance with its terms, and unconditionally that, at each Future Health Stockholders’ Meeting, at any
    other meeting of the stockholders of SPAC (whether annual, general, special or extraordinary and whether or not an adjourned or postponed
    meeting, however called and including any adjournment or postponement thereof), in connection with any written consent or written
    resolution of the stockholders of SPAC and in connection with any similar vote or consent of the holders of SPAC Warrants in their
    capacities as such, including in each of the Future Health Proposals, such SPAC Holder shall, and shall cause any other holder of
    record of any of such SPAC Holder’s Common Shares to:


 


	 	2.1.1	when such meeting is held, appear at such meeting or otherwise cause all of such
     SPAC Holder’s Common Shares to be counted as present thereat for the purpose of establishing a quorum;


 






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	 	2.1.2	vote (or duly and promptly execute and deliver an action by written consent or written
    resolution), or cause to be voted at such meeting (or cause such consent or resolution to be duly and promptly executed and delivered
    with respect to), all of such SPAC Holder’s Common Shares he, she or it is entitled to vote at the Future Health Stockholders’
    Meeting in favor of each Future Health Proposal and any other matters reasonably necessary for consummation of the Transactions;
    and


 


	 	2.1.3	vote (or duly and promptly execute and deliver an action by written consent or written
    resolution), or cause to be voted at such meeting (or cause such consent to be duly and promptly executed and delivered with respect
    to), all of such SPAC Holder’s Common Shares against any Future Health Business Combination Proposal and any other action that
    would reasonably be expected to impede, interfere with or materially delay or postpone the consummation of, or otherwise adversely
    affect, any of the Transactions, or result in a material breach of any representation, warranty, covenant or other obligation or
    agreement of SPAC, under the BCA or cause any condition thereunder not to be fulfilled.


 


	2.2	The obligations of the SPAC Holders in this Section 2 shall apply
    whether or not the Future Health Board or other governing body or any committee, subcommittee or subgroup thereof recommends any
    of the Future Health Proposals and whether or not such board or other governing body, committee, subcommittee or subgroup thereof
    changes, withdraws, withholds, qualifies or modifies, or publicly proposes to change, withdraw, withhold, qualify or modify, the
    Future Health Board’s recommendation to its stockholders.


 


	3	Waiver of Certain Rights


 


On behalf of herself, himself, itself
and its affiliates:


 


	3.1	Each SPAC Holder hereby irrevocably, for so long as this Agreement has not been
    terminated in accordance with its terms, and unconditionally agrees not to (i) demand that SPAC redeem its Common Shares in connection
    with the Transactions or (ii) otherwise participate in any such redemption by tendering or submitting any of its Common Shares for
    redemption; and


  


	3.2	Each SPAC Holder hereby irrevocably, for so long as this Agreement has not been
    terminated in accordance with its terms, and unconditionally (i) waives any rights for any loans, if any, made by it or its affiliates
    or on its behalf or on behalf of its affiliates to SPAC or any of its affiliates to, in each case, be converted into securities and/or
    warrants exercisable for securities, in each case, of SPAC or any of its affiliates or their successors and assigns and (ii) agrees
    that no such loans, if any, shall be converted into any securities and/or warrants.


 






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	4	Further Efforts & Assurances
	 
	4.1	During the Interim Period, each SPAC Holder (i) shall, and shall cause its affiliates
    to, use reasonable best efforts to take, or cause to be taken, all actions to do, or cause to be done, all things reasonably necessary,
    proper or advisable to consummate the Transactions on the terms and subject to the conditions set forth in the BCA and (ii) shall
    not, and shall cause its affiliates not to, take any action that would reasonably be expected to prevent or materially delay the
    satisfaction of any of the conditions to the Transactions set forth in Article VIII of the BCA.


  


	4.2	Each of
    the parties hereto agrees to execute and deliver hereafter any further document, agreement or instrument of assignment, transfer
    or conveyance as may be necessary or reasonably requested by a party hereto to effectuate the purposes hereof and as may be reasonably
    requested in writing by another party hereto.
	 	 
	4.3	Each SPAC
    Holder hereby covenants and agrees that such SPAC Holder shall not (i) enter into any voting agreement or voting trust with respect
    to any of such SPAC Holder’s Common Shares that is inconsistent with such stockholder’s obligations pursuant to this
    Agreement, (ii) grant a proxy or power of attorney with respect to any of such SPAC Holder’s Common Shares that is inconsistent
    with such SPAC Holder’s obligations pursuant to this Agreement, or (iii) enter into any agreement or undertaking that is otherwise
    inconsistent with, or would interfere with, or prohibit or prevent such SPAC Holder from satisfying, such SPAC Holder’s obligations
    pursuant to this Agreement.
	 	 
	4.4	During the Interim Period,
    each SPAC Holder agrees not to and, to the extent applicable, agrees to cause its Affiliates and subsidiaries not to, and shall use
    its reasonable best efforts to cause its and their respective Representatives not to, directly or indirectly, solicit, initiate,
    continue or engage in discussions or negotiations with, or enter into any agreement with, or encourage, respond, provide information
    to or commence due diligence with respect to, any person (other than Seller, the Company, their shareholders and/or any of their
    Affiliates or Representatives) concerning any Future Health Business Combination Proposal. In addition, each SPAC Holder shall, and
    shall cause its controlled Affiliates to, and shall cause their respective Representatives to, immediately cease any and all existing
    discussions or negotiations with any person with respect to any Future Health Business Combination Proposal. 



 






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	5	Transfer Restrictions


 


	5.1	Interim Period


 


During the Interim Period, each SPAC
Holder shall not, and shall cause any other holder of record of any of such SPAC Holder’s SPAC Securities not to, Transfer any
SPAC Securities that she, he or it Beneficially Owns without the prior written consent of the Seller; provided, however,
that the foregoing sentence shall not apply to the following (each, a “Permitted Transfer”):


 


	 	5.1.1	transfers to a trust, or other entity formed for estate planning purposes for the
    primary benefit of the spouse, domestic partner, parent, sibling, child or grandchild of any Investor or any other person with whom
    such Investor has a relationship by blood, marriage or adoption not more remote than first cousin;


 


	 	5.1.2	if the undersigned is an individual, Transfers by will or intestate succession upon
    the death of any Investor;


 


	 	5.1.3	transfers by operation of law, such as pursuant to a qualified domestic order or
    in connection with a divorce settlement;


 


	 	5.1.4	if the undersigned is not a natural person, (i) Transfers to a corporation, partnership,
    limited liability company, trust, syndicate, association or other business entity that controls, is controlled by or is under common
    control or management with such SPAC Holder and (ii) distributions to managers, partners, limited liability company members or equityholders
    who control such SPAC Holder;


 


	 	5.1.5	in the event of SPAC’s liquidation;


 


	 	5.1.6	by virtue of the laws of the jurisdiction of formation of any Sponsor or any of
    Sponsor’s limited liability company agreement, limited partnership agreement or equivalent organizational document, upon dissolution
    of such Sponsor; and


 


	 	5.1.7	the establishment of a trading plan pursuant to Rule 10b5-1 promulgated under the
    Exchange Act, provided that such plan does not provide for the transfer of SPAC Securities or any securities convertible
    into or exercisable or exchangeable for SPAC Securities during the Interim Period;


 


provided that in the case
of any Transfer or distribution pursuant to Section 5.1.1 through Section 5.1.7, each donee, distributee
or other transferee shall agree in writing, in form and substance reasonably satisfactory to the applicable SPAC Holder, the Company
and the Seller to be bound by the provisions of this Agreement.


 


	5.2	Any Transfer in violation of the provisions of this Section 5 shall
    be null and void ab initio and be of no force or effect.


 






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	6	Representations and Warranties


 


Each SPAC Holder hereby represents and
warrants (severally and not jointly as to herself, himself or itself only) to SPAC, the Seller and the Company as follows:


  


	6.1	if such person is not an individual, it is duly organized, validly existing and
    in good standing under the laws of the jurisdiction in which it is incorporated, formed, organized or constituted, and the execution,
    delivery and performance of this Agreement and the consummation of the transactions contemplated hereby are within such person’s
    corporate, limited liability company or other organizational powers and have been duly authorized by all necessary corporate, limited
    liability company or other organizational actions on the part of such person;


 


	6.2	if such person is an individual, such person has full legal capacity, right and
    authority to execute and deliver this Agreement and to perform its obligations hereunder;


 


	6.3	this Agreement has been duly executed and delivered by such person and, assuming
    due authorization, execution and delivery by the other parties to this Agreement, this Agreement constitutes a legally valid and
    binding obligation of such person, enforceable against such person in accordance with the terms hereof (except as enforceability
    may be limited by bankruptcy Laws, other similar Laws affecting creditors’ rights and general principles of equity affecting
    the availability of specific performance and other equitable remedies);


 


	6.4	the execution and delivery of this Agreement by such person does not, and the performance
    by such person of its obligations hereunder will not require any consent or approval that has not been given or other action that
    has not been taken by any third party, in each case, to the extent such consent, approval or other action would prevent, enjoin or
    materially delay the performance by such person of its obligations under this Agreement. The execution and delivery of this Agreement
    by the parties hereto does not, and the performance by the parties hereto of their respective obligations hereunder will not, conflict
    with, or require the consent of any member of Sponsor pursuant to the Sponsor’s limited liability company agreement;


 


	6.5	Schedule A hereto sets forth opposite such SPAC Holder’s name the number of
    all of SPAC Securities of which such SPAC Holder has beneficial or record ownership, or the power to vote (including, without limitation,
    by proxy or power of attorney) as of the date hereof; and except for the SPAC Securities denoted on Schedule A, as of the date of
    this Agreement, such SPAC Holder is not a record holder of any (i) SPAC Securities or (ii) any other securities of SPAC having the
    right to vote on any matters on which the holders of equity securities of SPAC may vote;


 


	6.6	such SPAC Holder understands and acknowledges that each of the Seller and the Company
    is entering into the BCA in reliance upon the execution and delivery of this Agreement by the SPAC Holders.


  


	6.7	such SPAC Holder is a sophisticated stockholder and has adequate information concerning
    the business and financial condition of SPAC and the Company to make an informed decision regarding this Agreement and the Transactions
    and has independently and without reliance upon SPAC, the Seller or the Company and based on such information as such SPAC Holder
    has deemed appropriate, made its own analysis and decision to enter into this Agreement; such SPAC Holder acknowledges that neither
    SPAC, the Seller nor the Company has made and does not make any representation or warranty, whether express or implied, of any kind
    or character except as expressly set forth in this Agreement; and such SPAC Holder acknowledges that the agreements contained herein
    with respect to SPAC Securities held by such SPAC Holder are irrevocable for so long as this Agreement has not been terminated in
    accordance with its terms;


 






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	6.8	as of the date hereof, there is no Action pending or, to the knowledge of such SPAC
    Holder, threatened, against such SPAC Holder that would reasonably be expected to impair the ability of such SPAC Holder to perform
    such SPAC Holder’s obligations hereunder or to consummate the transactions contemplated hereby; and


 


	6.9	without limiting the generality of the foregoing, Sponsor hereby represents and
    warrants that all of the Founder Shares issued and outstanding as of the date first written above are subject to the obligations
    under this Agreement, notwithstanding any entitlements thereto that any equityholders of Sponsor may have.


 


	7	Equitable Adjustments


 


If, and as often as, there are any changes
in SPAC or SPAC Securities by way of stock split, sub-division, stock or share dividend, combination, consolidation or reclassification,
or through merger, consolidation, reorganization, recapitalization or business combination, or by any other means, equitable adjustment
shall be made to the provisions of this Agreement as may be required so that the rights, privileges, duties and obligations hereunder
shall continue with respect to SPAC or the SPAC Securities each as so changed.


 


	8	Stop Transfer Order; Legend


 


Each SPAC Holder hereby authorizes SPAC
to maintain a copy of this Agreement at either the executive office or the registered office of SPAC. In furtherance of this Agreement,
each SPAC Holder hereby authorizes and will instruct SPAC, promptly after the date hereof, to enter, or cause its transfer agent to enter,
a stop transfer order with respect to all of such SPAC Holder’s SPAC Securities with respect to any Transfer not permitted hereunder
and to include the following legend on any certificates or other instruments representing (or any notice given pursuant to the laws of
the Cayman Islands in respect of) such SPAC Holder’s SPAC Securities: “THE SHARES OF STOCK OR OTHER SECURITIES REPRESENTED
BY THIS CERTIFICATE ARE SUBJECT TO CERTAIN VOTING AND TRANSFER RESTRICTIONS PURSUANT TO THAT CERTAIN SPONSOR STOCKHOLDER SUPPORT AGREEMENT,
DATED AS OF JUNE 13, 2022, BY AND AMONG MACARTHUR COURT ACQUISITION CORP., EXCELERA DCE, FUTURE HEALTH ESG CORP., FUTURE HEALTH ESG
ASSOCIATES 1, LLC, AND CERTAIN OTHER PERSONS PARTY THERETO. ANY TRANSFER OF SUCH
SHARES OF STOCK OR OTHER SECURITIES IN VIOLATION OF THE TERMS AND PROVISIONS OF SUCH SPONSOR STOCKHOLDER SUPPORT AGREEMENT SHALL BE NULL
AND VOID AB INITIO AND HAVE NO FORCE OR EFFECT WHATSOEVER.”


 






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	9	Updates to Schedule A; Admission of New SPAC Holders


 


During the Interim Period, each SPAC
Holder shall promptly notify SPAC of any increase, decrease or other change in the number of SPAC Securities held by or on behalf of
such SPAC Holder (for the avoidance of doubt, each SPAC Holder acknowledges and agrees that Section 5.1 prohibits
all Transfers of its SPAC Securities, other than Permitted Transfers, during the Interim Period, including any such SPAC Securities hereafter
acquired by any SPAC Holder). Promptly following each such notification, SPAC or Holdco (as applicable) shall update Schedule
A to reflect the applicable changes as they relate to SPAC Securities and provide a copy of such updated Schedule A to
each of the parties hereto, and such updated Schedule A shall control for all purposes of this Agreement (unless and
until it is later updated in accordance with this Section 9). Any such update to Schedule A pursuant to
this Section 9 shall not be deemed an amendment to this Agreement for purposes of Section 13.


 


	10	Termination of Existing Registration Rights Agreement


 


Prior to Closing, in connection with
the entry into the Amended and Restated Registration Rights Agreement by and among SPAC and the SPAC Holders, the SPAC Holders shall
cause all existing registration rights agreements (including that certain Registration Rights Agreement, dated as of September 9, 2021,
entered into by and among SPAC, Cantor Fitzgerald & Co. and the SPAC Holders party thereto) entered into between SPAC and any other
party, including the Sponsor but not including any PIPE Investors, to be terminated or restated in its entirely, as applicable, in each
case. No parties to any such terminated or superseded registration rights agreements shall have any further rights or obligations thereunder.


 


	11	Consent to Disclosure


 


Each SPAC Holder hereby consents to
the publication and disclosure in the Proxy Statement (and, as and to the extent otherwise required by applicable securities Laws or
the SEC or any other securities authorities, any other documents or communications provided by SPAC, the Seller or the Company to any
Governmental Authority or to securityholders of SPAC) of such SPAC Holder’s identity and beneficial ownership of SPAC Securities
and the nature of such SPAC Holder’s commitments, arrangements and understandings under and relating to this Agreement and, if
deemed appropriate by SPAC or the Seller, a copy of this Agreement. Each SPAC Holder will promptly provide any information reasonably
requested by SPAC or the Seller for any regulatory application or filing made or approval sought in connection with the Transactions
(including filings with the SEC).


 


	12	No Challenges


 


Each SPAC Holder agrees not to commence,
join in, facilitate, assist or encourage, and agrees to take all actions necessary to opt out of any class in any class action with respect
to, any claim, derivative or otherwise, against SPAC, the Seller, the Company or any of their respective successors, directors or officers
(i) challenging the validity of, or seeking to enjoin the operation of, any provision of this Agreement or (ii) alleging a breach of
any fiduciary duty of any person in connection with the evaluation, negotiation or entry into the BCA or any other agreement in connection
with the Transactions.


 






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	13	Entire Agreement; Assignment; Amendment


 


	13.1	This Agreement and the other agreements referenced herein constitute the entire
    agreement among the parties with respect to the subject matter hereof and supersede all prior agreements and undertakings, both written
    and oral, among the parties, or any of them, with respect to the subject matter hereof. This Agreement shall not be assigned (whether
    pursuant to a merger, by operation of law or otherwise) by any party without the prior express written consent of the other parties
    hereto. This Agreement may be amended in writing by all parties hereto by an instrument in writing signed by each of the parties
    hereto.


 


	13.2	At any time prior to the Closing, (i) the Sponsor, on behalf of SPAC Holders may
    (a) extend the time for the performance of any obligation or other act of the Seller or the Company, (b) waive any inaccuracy in
    the representations and warranties of the Seller or the Company contained herein or in any document delivered by the Seller or the
    Company pursuant hereto and (c) waive compliance with any agreement of the Seller or the Company or any condition to its own obligations
    contained herein and (ii) the Seller and the Company acting together may (a) extend the time for the performance of any obligation
    or other act of any SPAC Holder, (b) waive any inaccuracy in the representations and warranties of any SPAC Holder contained herein
    or in any document delivered by any SPAC Holder pursuant hereto and (c) waive compliance with any agreement of any SPAC Holder or
    any condition to the obligations of SPAC Holders contained herein. Any such extension or waiver shall be valid if set forth in an
    instrument in writing signed by the party or parties to be bound thereby.


 


	14	Parties in Interest


 


This Agreement shall be binding upon
and inure solely to the benefit of each party hereto, 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.


 


	15	Counterparts


 


This Agreement may be executed and delivered
(including by facsimile or portable document format (pdf) transmission) in one or more counterparts, and by the different parties hereto
in separate counterparts, each of which when executed shall be deemed to be an original but all of which taken together shall constitute
one and the same agreement.


 






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	16	Severability


 


If any term or other provision of this
Agreement is invalid, illegal or incapable of being enforced by any rule of law, or public policy, all other conditions and provisions
of this Agreement shall nevertheless remain in full force and effect so long as the economic or legal substance of the Transactions 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 a mutually acceptable manner in order that the Transactions be consummated as originally
contemplated to the fullest extent possible.


 


	17	Governing Law; Venue; Waiver of Jury Trial


 


Sections 10.06 and 10.07 of the BCA
are incorporated herein by reference, mutatis mutandis.


 


	18	Notices


 


All notices, requests, claims, demands
and other communications hereunder shall be in writing and shall be given (and shall be deemed to have been duly given upon receipt)
by delivery in person, by email or by registered or certified mail (postage prepaid, return receipt requested) to (i) if to SPAC or the
Sponsor, the address for SPAC in accordance with the terms of Section 10.01 of the BCA, (ii) if to the Company or the Seller, the address
for the Company or the Seller in accordance with the terms of Section 10.01 of the BCA and (iii) if to any of the Investors, the address
set forth in such Investor’s signature block hereto.


 


	19	Termination


 


This Agreement shall automatically terminate
on the earliest of: (a) the valid termination of the BCA (in which case this Agreement shall be of no force and effect), (b) the
Closing and (c) the mutual written agreement of the parties hereof; provided, that no such termination shall relieve any
party hereto from any liability resulting from its pre-termination breach of this Agreement.


 


	20	Specific Performance


 


The parties agree that irreparable damage
would occur if any provision of this Agreement were not performed in accordance with the terms hereof, and, accordingly, that the parties
shall be entitled to an injunction or injunctions to prevent breaches of this Agreement or to enforce specifically the performance of
the terms and provisions hereof (including the parties’ obligation to consummate the Transactions) in any court of the United States
located in the State of Delaware without proof of actual damages or otherwise, in addition to any other remedy to which they are entitled
at law or in equity as expressly permitted in this Agreement. Each of the parties hereby further waives (i) any defense in any action
for specific performance that a remedy at law would be adequate and (ii) any requirement under any Law to post security or a bond as
a prerequisite to obtaining equitable relief.


 






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	21	Interpretation


 


The descriptive headings contained in
this Agreement are included for convenience of reference only and shall not affect in any way the meaning or interpretation of this Agreement.
Wherever this Agreement uses “it”, “its” or derivations thereof to refer to a natural person, such references
shall be deemed references to “her”, “him” or “his”, as applicable.


 


	22	No Partnership, Agency or Joint Venture


 


This Agreement is intended to create
a contractual relationship between the parties hereto, and nothing contained herein is intended to create, and does not create, any agency,
partnership, joint venture or any like relationship between or among any of the parties hereto. Without in any way limiting the rights
or obligations of any party hereto under this Agreement, prior to the Closing, (i) no party is by virtue of this Agreement authorized
as an agent, employee or legal representative of any other party, (ii) no party shall have the power by virtue of this Agreement to control
the activities and operations of any other and (iii) no party shall have any power or authority by virtue of this Agreement to bind or
commit any other party, (iv) each of the SPAC Holders (a) has acted independently regarding its decision to enter into this Agreement
and regarding its investment in SPAC and/or Sponsor, as applicable, solely on its own behalf and shall not have any obligation to perform
on behalf of any other SPAC Holder of Common Stock or any liability (regardless of the legal theory advanced) for any breach of this
Agreement by any other SPAC Holder and (b) by entering into this Agreement does not intend to form a “group” for purposes
of Rule 13d-5(b)(1) of the Exchange Act or any other similar provision of applicable Law.


 


[Signature pages follow]


 






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IN WITNESS WHEREOF, the parties have executed this Agreement
as of the date first written above.


  


	 	MACARTHUR COURT ACQUISITION CORP.
	 	 
	 	By	/s/ Sanjay Patil
	 	Name: Sanjay Patil
	 	Title: Chief Executive Officer
	 	 
	 	EXCELERA DCE
	 	 
	 	By	/s/ Desmond Thio
	 	Name:  Desmond Thio
	 	Title: Chief Executive Officer


  


	 	FUTURE HEALTH ESG CORP.
	 	 
	 	By	/s/ Bradley Bostic
	 	Name:  Bradley Bostic
	 	Title:    Chief Executive Officer
	 	 
	 	FUTURE HEALTH ESG ASSOCIATES 1, LLC
	 	 
	 	By	/s/ Travis A. Morgan
	 	Name:  Travis A. Morgan
	 	Title:    Manager


 


[Signature page to the
Sponsor Stockholder Support Agreement] 


 






     


     


    

  


	 	INVESTORS
	 	 
	 	BEA HOLDINGS, LLC
	 	 
	 	/s/ Bradley A. Bostic
	 	Name: Bradley A. Bostic
	 	Title: Manager
	 	Address:
	 	 
	 	M2 ENTERPRISES HOLDINGS, LLC
	 	 
	 	/s/ Travis A. Morgan
	 	Name: Travis A. Morgan
	 	Title: Manager
	 	Address:
	 	 
	 	HC1.COM, INC
	 	 
	 	/s/ Chris Brown
	 	Name: Chris Brown
	 	Title: Chief Operating Officer
	 	Address:
	 	 
	 	/s/ R. Mark Lubbers
	 	Name: R. Mark Lubbers
	 	Address:
	 	 
	 	/s/ Dr. John F. Mills
	 	Name: Dr. John F. Mills
	 	Address:
	 	 
	 	/s/ Dr. Nancy L. Snyderman
	 	Name: Dr. Nancy L. Snyderman
	 	Address:
	 
	 	MB EQUITY, LLC
	 	 
	 	/s/ Travis A. Morgan
	 	Name: Travis A. Morgan
	 	Title: Managing Manager
	 	Address:


 




[Signature page to the Sponsor Stockholder Support Agreement]