Exhibit 10.3


 


STOCKHOLDER SUPPORT AGREEMENT


 


This Stockholder Support
Agreement (this “Agreement”) is dated as of February 23, 2021, by and among one, a Cayman Islands exempted
company limited by shares (which shall domesticate as a Delaware corporation prior to the Closing (as defined in the Merger Agreement
(as defined below)) (“Acquiror”), the Persons set forth on Schedule I hereto (each, a “Company
Stockholder” and, collectively, the “Company Stockholders”), and MarkForged, Inc., a Delaware
corporation (the “Company”). Capitalized terms used but not defined herein shall have the respective meanings
ascribed to such terms in the Merger Agreement (as defined below).


 


RECITALS


 


WHEREAS, as of the date
hereof, the Company Stockholders are the holders of record and the “beneficial owners” (within the meaning of Rule 13d-3
under the Exchange Act) of such number of shares of such classes or series of Company Capital Stock as are indicated opposite each
of their names on Schedule I attached hereto (all such shares of Company Capital Stock, together with any shares of
Company Capital Stock of which ownership of record or the power to vote (including, without limitation, by proxy or power of attorney)
are hereafter acquired by any such Company Stockholder during the period from the date hereof through the Expiration Time (as defined
below) are referred to herein as the “Subject Shares”);


 


WHEREAS, contemporaneously
with the execution and delivery of this Agreement, Acquiror, Caspian Merger Sub Inc., a Delaware corporation and a direct wholly-owned
subsidiary of Acquiror (“Merger Sub”), and the Company, have entered into an Agreement and Plan of Merger (as
amended or modified from time to time, the “Merger Agreement”), dated as of the date hereof, pursuant to which,
among other transactions, Merger Sub is to merge with and into the Company, with the Company continuing as the surviving entity
and a wholly owned subsidiary of Acquiror on the terms and conditions set forth therein (the “Merger”); and


 


WHEREAS, as an inducement
to Acquiror and the Company to enter into the Merger Agreement and to consummate the transactions contemplated therein, the parties
hereto desire to agree to certain matters as set forth herein.


 


AGREEMENT


 


NOW, THEREFORE, in consideration
of the foregoing and the mutual agreements contained herein, and intending to be legally bound hereby, the parties hereto hereby
agree as follows:


 


ARTICLE I


 


STOCKHOLDER
SUPPORT AGREEMENT; COVENANTS


 


Section 1.1     Binding
Effect of Merger Agreement. Each Company Stockholder hereby acknowledges that it has read the Merger Agreement and this
Agreement and has had the opportunity to consult with its tax and legal advisors. Each Company Stockholder shall be
bound by and comply with Sections 6.5 (Acquisition Proposals) in respect of Acquisition Proposals regarding the Company and
11.12 (Publicity) of the Merger Agreement (and any relevant definitions contained in any such Sections) as if (a) such
Company Stockholder was an original signatory to the Merger Agreement with respect to such provisions, and (b) each
reference to the “Company” contained in Section 6.5 of the Merger Agreement (other than
Section 6.5(i) or Section 6.5(iii) or for purposes of the definition of Acquisition Proposal) also
referred to each such Company Stockholder.


 






     


     


    

 


Section 1.2     No
Transfer. During the period commencing on the date hereof and ending on the earlier of (a) the Effective Time, and (b) such
date and time as the Merger Agreement shall be terminated in accordance with Section 10.1 thereof (the earlier of clauses
(a) and (b), the “Expiration Time”), each Company Stockholder shall not (i) sell, offer to sell, contract
or agree to sell, hypothecate, pledge, grant any option to purchase or otherwise dispose of or agree to dispose of, directly or
indirectly, file (or participate in the filing of) a registration statement with the SEC (other than the Proxy Statement/Registration
Statement) or establish or increase a put equivalent position or liquidate or decrease a call equivalent position within the meaning
of Section 16 of the Exchange Act, with respect to any Subject Shares, (ii) enter into any swap or other arrangement
that transfers to another Person, in whole or in part, any of the economic consequences of ownership of any Subject Shares (clauses
(i) and (ii) collectively, a “Transfer”) or (iii) publicly announce any intention to effect any
transaction specified in clause (i) or (ii); provided, however, that the foregoing shall not prohibit the Employee
Transactions or Transfers by the Company Stockholder to any Affiliate thereof so long as, prior to and as a condition to the effectiveness
of any such Transfer, such transferee executes and delivers to Acquiror a joinder to this Agreement in the form attached hereto
as Annex A.


 


Section 1.3     New
Shares. In the event that, (a) any Subject Shares are issued to a Company Stockholder after the date of this Agreement
pursuant to any stock dividend, stock split, recapitalization, reclassification, combination or exchange of Subject Shares or otherwise,
(b) a Company Stockholder purchases or otherwise acquires beneficial ownership of any Subject Shares after the date of this
Agreement, or (c) a Company Stockholder acquires the right to vote or share in the voting of any Subject Shares after the
date of this Agreement (collectively, the “New Securities”), then such New Securities acquired or purchased
by such Company Stockholder shall be subject to the terms of this Agreement to the same extent as if they constituted the Subject
Shares owned by such Company Stockholder as of the date hereof.


 


Section 1.4     Company
Stockholder Agreements. Hereafter until the Expiration Time, each Company Stockholder hereby unconditionally and
irrevocably agrees that, at any meeting of the stockholders of the Company (or any adjournment or postponement thereof), and
in any action by written consent of the stockholders of the Company distributed by the Board of Directors of the Company or
otherwise undertaken in connection with or as contemplated by the Merger Agreement or the transactions contemplated thereby,
including in the form of action by written consent attached hereto as Exhibit A (which written consent shall be
delivered promptly, and in any event within twenty-four (24) hours, after the Registration Statement (as contemplated by the
Merger Agreement) is declared effective and delivered or otherwise made available to the shareholders of Acquiror and the
stockholders of the Company), such Company Stockholder shall, if a meeting is held, appear at the meeting, in person or by
proxy, or otherwise cause its Subject Shares (to the extent such Subject Shares are entitled to vote on or provide
consent with respect to such matter) to be counted as present thereat for purposes of establishing a quorum, and such Company
Stockholder shall vote or provide consent (or cause to be voted or consented), in person or by proxy, all of its Subject
Shares (to the extent such Subject Shares are entitled to vote on or provide consent with respect to such matter):


 






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(a)            to
approve and adopt the Merger Agreement and the transactions contemplated thereby, including the Merger and the Preferred Stock
Conversion;


 


(b)            in
any other circumstances upon which a consent, waiver or other approval may be required under the Company’s Governing Documents
or under any agreements between the Company and its stockholders, including the (i) Third Amended and Restated Investors’
Rights Agreement, dated as of March 13, 2019, by and among the Company and the other stockholders party thereto (the “IRA”),
(ii) Third Amended and Restated Right of First Refusal and Co-Sale Agreement, dated March 13, 2019, among the Company
and the other stockholders party thereto (the “Co-Sale Agreement”), and (iii) Third Amended and Restated
Voting Agreement, dated March 13, 2019, as amended by Amendment No. 1, dated October 20, 2020, among the Company
and the other stockholders party thereto (the “Voting Agreement”), to implement the Merger Agreement or the
transactions contemplated thereby, to vote, consent, waive or approve (or cause to be voted, consented, waived or approved) all
of such Company Stockholder’s Subject Shares held at such time in favor thereof;


 


(c)            against
any Acquisition Proposal with respect to the Company (other than the Merger Agreement and the transactions contemplated thereby);
and


 


(d)            against
any proposal, action or agreement that would (A) impede, frustrate, prevent or nullify any provision of this Agreement, the
Merger Agreement or the transactions contemplated thereby, including the Merger, (B) result in a breach in any respect of
any covenant, representation, warranty or any other obligation or agreement of the Company under the Merger Agreement or (C) result
in any of the conditions set forth in Article IX of the Merger Agreement not being fulfilled.


 


Each Company Stockholder
hereby agrees that it shall not commit in writing or agree in writing to take any action inconsistent with the foregoing.


 


Section 1.5     Irrevocable
Proxy. Subject to the last sentence of this Section 1.5, and solely in the event of a failure by a Company Stockholder
to act in accordance with such Company Stockholder’s obligations as to voting pursuant to Section 1.4 hereof prior to
the termination of this Agreement, after being requested by the Company and such Company Stockholder fails to vote or consent for
a period of three days after such request, such Company Stockholder hereby grants a proxy appointing Acquiror as such Company Stockholder’s
attorney-in-fact and proxy, with full power of substitution, for and in such Company Stockholder’s name, to vote, express
consent or dissent, or otherwise to utilize such voting power in the manner contemplated by Section 1.4 above as the Acquiror
or its proxy or substitute shall deem proper with respect to the Subject Shares. Notwithstanding anything contained herein to the
contrary, this irrevocable proxy shall automatically terminate upon the termination of this Agreement.





 






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Section 1.6     Affiliate
Agreements. Each Company Stockholder, severally and not jointly, hereby agrees and consents to the termination of all Affiliate
Arrangements set forth on Section 6.4 of the Company Disclosure Letter to which such Company Stockholder is party, including
the IRA, the Co-Sale Agreement and the Voting Agreement, effective as of the Effective Time without any further liability or obligation
to the Company, the Company’s Subsidiaries or Acquiror.


 


Section 1.7     Registration
Rights Agreement. Each of the Company Stockholders set forth on Schedule II, on behalf of itself, agrees that it
will deliver, substantially simultaneously with the Effective Time, a duly-executed copy of the Registration Rights Agreement substantially
in the form attached as Exhibit C to the Merger Agreement.


 


Section 1.8     Lock-Up
Agreement. Each of the Company Stockholders set forth on Schedule III, on behalf of itself, agrees that it will
deliver, substantially simultaneously with the Effective Time, a duly-executed copy of the Lock-Up Agreement substantially in the
form attached as Exhibit D to the Merger Agreement with such changes as agreed by the Company, Acquiror and the Company Stockholders
party to such Agreement.


 


Section 1.9     Further
Assurances. Each Company Stockholder shall take, or cause to be taken, all such further actions and do, or cause to be done,
all things reasonably necessary (including under applicable Laws) to effect the actions required to consummate the Merger and the
other transactions contemplated by this Agreement and the Merger Agreement, in each case, on the terms and subject to the conditions
set forth therein and herein, as applicable.


 


Section 1.10     No
Inconsistent Agreement. Each Company Stockholder hereby represents and covenants that such Company Stockholder has not entered
into, and shall not enter into, any agreement that would restrict, limit or interfere with the performance of such Company Stockholder’s
obligations hereunder.


 


Section 1.11     No
Challenges. Each Company Stockholder agrees not to voluntarily 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 Acquiror, Merger Sub, the Company or any of their respective successors or directors, (a) challenging the validity
of, or seeking to enjoin the operation of, any provision of this Agreement or (b) alleging a breach of any fiduciary duty
of any Person in connection with the evaluation, negotiation or entry into the Merger Agreement. Notwithstanding the foregoing,
nothing herein shall be deemed to prohibit such Company Stockholder from enforcing such Company Stockholder’s rights under
this Agreement, any applicable indemnification rights under the Merger Agreement and/or the other agreements entered into by such
Company Stockholder in connection herewith, including such Company Stockholder’s right to receive such Company Stockholder’s
portion of the Aggregate Merger Consideration as provided in the Merger Agreement.


 






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Section 1.12     Consent
to Disclosure. Each Company Stockholder hereby consents to the publication and disclosure, to the extent required, in the
Proxy Statement/Registration 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 Acquiror or the Company to any
Governmental Authority or to securityholders of Acquiror) of such Company Stockholder’s identity and beneficial
ownership of Subject Shares and the nature of such Company Stockholder’s commitments, arrangements and understandings
under and relating to this Agreement and, if deemed appropriate by Acquiror or the Company, a copy of this Agreement. Each
Company Stockholder will promptly provide any information reasonably requested by Acquiror or the Company for any regulatory
application or filing made or approval sought in connection with the transactions contemplated by the Merger Agreement
(including filings with the SEC), subject to confidentiality obligations that may be applicable to information furnished to
the Company or any of the Company’s Subsidiaries by third parties that may be in the Company’s or any of its
Subsidiaries’ possession from time to time, and except for any information that is subject to attorney-client privilege
(provided, that to the extent reasonably possible, the parties shall cooperate in good faith to permit disclosure of such
information in a manner that preserves such privilege or complies with such confidentiality obligation), to the extent
permitted by applicable Law.


 


Section 1.13     Waiver
of Appraisal Rights. Each Company Stockholder hereby waives any rights of appraisal or rights to dissent from the Merger that
such Company Stockholder may have under applicable law, including Section 262 of the DGCL.


 


Section 1.14     No
Agreement as Director or Officer. Notwithstanding anything to the contrary herein, each Company Stockholder is entering into
this Agreement solely in the Company Stockholder’s capacity as record or beneficial owner of Subject Shares and nothing herein
is intended to or shall limit or affect any actions taken by any employee, officer, director (or person performing similar functions),
partner or other Affiliate (including, for this purpose, any appointee or representative of the Company Stockholder to the board
of directors of the Company) of the Company Stockholder, solely in his or her capacity as a director or officer of the Company
(or a Subsidiary of the Company) or other fiduciary capacity for the Company Stockholders.


 


ARTICLE II


 


REPRESENTATIONS
AND WARRANTIES


 


Section 2.1     Representations
and Warranties of the Company Stockholders. Each Company Stockholder represents and warrants as of the date hereof to Acquiror
and the Company (severally and not jointly, and solely with respect to itself, himself or herself and not with respect to any other
Company Stockholder) as follows:


 






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(a)            Organization;
Due Authorization. If such Company Stockholder 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
Company Stockholder’s corporate, limited liability company or organizational powers and have been duly authorized by
all necessary corporate, limited liability company or organizational actions on the part of such Company Stockholder.
If such Company Stockholder is an individual, such Company Stockholder has full legal capacity, right and authority to
execute and deliver this Agreement and to perform his or her obligations hereunder. This Agreement has been duly executed and
delivered by such Company Stockholder 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 Company Stockholder, enforceable against
such Company Stockholder 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). If this Agreement is being executed in a representative or fiduciary capacity, the
Person signing this Agreement has full power and authority to enter into this Agreement on behalf of the applicable Company
Stockholder.


 


(b)            Ownership.
Such Company Stockholder is the record and beneficial owner (within the meaning of Rule 13d-3 of the Exchange Act) of, and
has good title to, all of such Company Stockholder’s Subject Shares, and there exist no Liens or any other limitation or
restriction (including any restriction on the right to vote, sell or otherwise dispose of such Subject Shares (other than transfer
restrictions under the Securities Act)) affecting any such Subject Shares, other than Liens pursuant to (i) this Agreement,
(ii) the Company’s Governing Documents, (iii) the Merger Agreement, (iv) any applicable securities Laws or
(v) the Voting Agreement. Such Company Stockholder’s Subject Shares are the only equity securities in the Company owned
of record or beneficially by such Company Stockholder on the date of this Agreement, and none of such Company Stockholder’s
Subject Shares are subject to any proxy, voting trust or other agreement or arrangement with respect to the voting of such Subject
Shares other than as set forth in the Voting Agreement. Other than as set forth opposite such Company Stockholder’s name
on Schedule I, such Company Stockholder does not hold or own any rights to acquire (directly or indirectly) any equity
securities of the Company or any equity securities convertible into, or which can be exchanged for, equity securities of the Company.


 


(c)            No
Conflicts. The execution and delivery of this Agreement by such Company Stockholder does not, and the performance by such Company
Stockholder of his, her or its obligations hereunder will not, (i) if such Company Stockholder is not an individual, conflict
with or result in a violation of the organizational documents of such Company Stockholder or (ii) require any consent or approval
that has not been given or other action that has not been taken by any Person (including under any Contract binding upon such Company
Stockholder or such Company Stockholder’s Subject Shares), in each case, to the extent such consent, approval or other action
would prevent, enjoin or materially delay the performance by such Company Stockholder of its, his or her obligations under this
Agreement.


 


(d)            Litigation.
There are no Actions pending against such Company Stockholder, or to the knowledge of such Company Stockholder threatened in writing
against such Company Stockholder, before (or, in the case of threatened Actions, that would be before) any arbitrator or any Governmental
Authority, which in any manner challenges or seeks to prevent, enjoin or materially delay the performance by such Company Stockholder
of its, his or her obligations under this Agreement.





 






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(e)            Adequate
Information. Such Company Stockholder is a sophisticated stockholder and has adequate information concerning the business and
financial condition of Acquiror and the Company to make an informed decision regarding this Agreement and the transactions contemplated
by the Merger Agreement and has independently and without reliance upon Acquiror or the Company and based on such information as
such Company Stockholder has deemed appropriate, made its own analysis and decision to enter into this Agreement. Such Company
Stockholder acknowledges that Acquiror and the Company have not made and do not make any representation or warranty, whether express
or implied, of any kind or character except as expressly set forth in this Agreement. Such Company Stockholder acknowledges that
the agreements contained herein with respect to the Subject Shares held by such Company Stockholder are irrevocable.


 


(f)            Brokerage
Fees. Except as described on Section 4.16 of the Company Disclosure Letter, no broker, finder, investment banker or other
Person is entitled to any brokerage fee, finders’ fee or other commission in connection with the transactions contemplated
by the Merger Agreement based upon arrangements made by such Company Stockholder, for which the Company or any of its Affiliates
may become liable.


 


(g)            Acknowledgment.
Such Company Stockholder understands and acknowledges that each of Acquiror and the Company is entering into the Merger Agreement
in reliance upon such Company Stockholder’s execution and delivery of this Agreement.


 


Section 2.2     No
Other Representations or Warranties. Except for the representations and warranties made by each Company Stockholder in this
Article II, no Company Stockholder nor any other Person makes any express or implied representation or warranty to
Acquiror in connection with this Agreement or the transactions contemplated by this Agreement, and each Company Stockholder expressly
disclaims any such other representations or warranties.


 


ARTICLE III


 


MISCELLANEOUS


 


Section 3.1     Termination.
This Agreement and all of its provisions shall terminate and be of no further force or effect upon the earlier of (a) the
Expiration Time and (b) the written agreement of Acquiror, the Company and each Company Stockholder. Upon such termination
of this Agreement, all obligations of the parties under this Agreement will terminate, without any liability or other obligation
on the part of any party hereto to any Person in respect hereof or the transactions contemplated hereby, and no party hereto shall
have any claim against another (and no person shall have any rights against such party), whether under contract, tort or otherwise,
with respect to the subject matter hereof; provided, however, that the termination of this Agreement shall not relieve
any party hereto from liability arising in respect of any breach of this Agreement prior to such termination. This Article III
shall survive the termination of this Agreement.


 






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Section 3.2     Governing
Law. This Agreement, and all claims or causes of action (whether in contract or tort) that may be based upon, arise out of
or relate to this Agreement or the negotiation, execution or performance of this Agreement (including any claim or cause of action
based upon, arising out of or related to any representation or warranty made in or in connection with this Agreement) will be governed
by and construed in accordance with the internal Laws of the State of Delaware applicable to agreements executed and performed
entirely within such State.


 


Section 3.3     CONSENT
TO JURISDICTION AND SERVICE OF PROCESS; WAIVER OF JURY TRIAL.


 


(a)            THE
PARTIES TO THIS AGREEMENT SUBMIT TO THE EXCLUSIVE JURISDICTION OF THE STATE COURTS LOCATED IN WILMINGTON, DELAWARE OR THE COURTS
OF THE UNITED STATES LOCATED IN WILMINGTON, DELAWARE IN RESPECT OF THE INTERPRETATION AND ENFORCEMENT OF THE PROVISIONS OF THIS
AGREEMENT AND ANY RELATED AGREEMENT, CERTIFICATE OR OTHER DOCUMENT DELIVERED IN CONNECTION HEREWITH AND, BY THIS AGREEMENT, WAIVE,
AND AGREE NOT TO ASSERT, ANY DEFENSE IN ANY ACTION FOR THE INTERPRETATION OR ENFORCEMENT OF THIS AGREEMENT AND ANY RELATED AGREEMENT,
CERTIFICATE OR OTHER DOCUMENT DELIVERED IN CONNECTION HEREWITH, THAT THEY ARE NOT SUBJECT THERETO OR THAT SUCH ACTION MAY NOT
BE BROUGHT OR IS NOT MAINTAINABLE IN SUCH COURTS OR THAT THIS AGREEMENT MAY NOT BE ENFORCED IN OR BY SUCH COURTS OR THAT THEIR
PROPERTY IS EXEMPT OR IMMUNE FROM EXECUTION, THAT THE ACTION IS BROUGHT IN AN INCONVENIENT FORUM, OR THAT THE VENUE OF THE ACTION
IS IMPROPER. SERVICE OF PROCESS WITH RESPECT THERETO MAY BE MADE UPON ANY PARTY TO THIS AGREEMENT BY MAILING A COPY THEREOF
BY REGISTERED OR CERTIFIED MAIL, POSTAGE PREPAID, TO SUCH PARTY AT ITS ADDRESS AS PROVIDED IN SECTION 3.8.


 


(b)            WAIVER
OF TRIAL BY JURY. EACH PARTY HERETO HEREBY ACKNOWLEDGES AND AGREES THAT ANY CONTROVERSY WHICH MAY ARISE UNDER THIS
AGREEMENT IS LIKELY TO INVOLVE COMPLICATED AND DIFFICULT ISSUES, AND THEREFORE EACH SUCH PARTY HEREBY IRREVOCABLY AND
UNCONDITIONALLY WAIVES ANY RIGHT SUCH PARTY MAY HAVE TO A TRIAL BY JURY IN RESPECT OF ANY LITIGATION DIRECTLY OR
INDIRECTLY ARISING OUT OF OR RELATING TO THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED BY THIS AGREEMENT. EACH PARTY
CERTIFIES AND ACKNOWLEDGES THAT (I) NO REPRESENTATIVE, AGENT OR ATTORNEY OF ANY OTHER PARTY HAS REPRESENTED, EXPRESSLY
OR OTHERWISE, THAT SUCH OTHER PARTY WOULD NOT, IN THE EVENT OF LITIGATION, SEEK TO ENFORCE THE FOREGOING WAIVER,
(II) EACH SUCH PARTY UNDERSTANDS AND HAS CONSIDERED THE IMPLICATIONS OF THIS WAIVER, (III) EACH SUCH PARTY MAKES
THIS WAIVER VOLUNTARILY, AND (IV) EACH SUCH PARTY HAS BEEN INDUCED TO ENTER INTO THIS AGREEMENT BY, AMONG OTHER
THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS IN THIS SECTION 3.3.


 


Section 3.4     Assignment.
This Agreement and all of the provisions hereof will be binding upon and inure to the benefit of the parties hereto and their respective
heirs, successors and permitted assigns. Neither this Agreement nor any of the rights, interests or obligations hereunder will
be assigned (including by operation of law) without the prior written consent of the parties hereto.


 






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Section 3.5     Specific
Performance. The parties hereto agree that irreparable damage may occur in the event that any of the provisions of this Agreement
were not performed in accordance with their specific terms or were otherwise breached. It is accordingly agreed that the parties
hereto shall be entitled to seek an injunction or injunctions to prevent breaches of this Agreement and to enforce specifically
the terms and provisions of this Agreement in the chancery court or any other state or federal court within the State of Delaware,
this being in addition to any other remedy to which such party is entitled at law or in equity.


 


Section 3.6     Amendment;
Waiver. This Agreement may not be amended, changed, supplemented, waived or otherwise modified or terminated, except upon the
execution and delivery of a written agreement executed by Acquiror, the Company and Company Stockholders holding a majority of
the total number of shares of Company Common Stock (determined on an as-converted, as-exercised basis) held by all Company Stockholders,
provided that no such amendment shall disproportionately adversely affect any Company Stockholder relative to the other Company
Stockholders without such adversely affected Company Stockholders’ prior written consent.


 


Section 3.7     Severability.
If any provision of this Agreement is held invalid or unenforceable by any court of competent jurisdiction, the other provisions
of this Agreement will remain in full force and effect. Any provision of this Agreement held invalid or unenforceable only in part
or degree will remain in full force and effect to the extent not held invalid or unenforceable.


 


Section 3.8     Notices.
All notices and other communications among the parties hereto shall be in writing and shall be deemed to have been duly given (a) when
delivered in person, (b) when delivered after posting in the United States mail having been sent registered or certified mail
return receipt requested, postage prepaid, (c) when delivered by FedEx or other nationally recognized overnight delivery service
or (d) when e-mailed during normal business hours of the recipient (and otherwise as of the immediately following Business
Day), addressed as follows:


 


If to Acquiror, to:


 


one


16 Funston Avenue, Suite A


The Presidio of San Francisco

San Francisco, California 94129

Attention: Troy B. Steckenrider III, Chief Financial Officer

Email: legal@astar.co


 


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


 


	Cadwalader, Wickersham & Taft LLP
	200 Liberty St.
	New York, New York 10281
	Attention:	Stephen Fraidin
	                  	Andrew Alin
	 	Niral Shah
	Email:     	stephen.fraidin@cwt.com
	 	andrew.alin@cwt.com
	 	niral.shah@cwt.com




 






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If to the Company, to:


 


MarkForged, Inc.

480 Pleasant Street

Watertown, MA 02472

Attention: General Counsel

Email: Stephen.Karp@markforged.com


 


with copy to (which shall not
constitute notice):


 


	Goodwin Procter LLP
	100 Northern Avenue
	Boston, MA 02210
	Attention:	Kenneth J. Gordon
	 	Michael J. Minahan
	 	Michael R. Patrone
	Email:	kgordon@goodwinlaw.com
	 	mminihan@goodwinlaw.com
	 	mpatrone@goodwinlaw.com








 


If to a Company Stockholder:


 


To such Company Stockholder’s
address set forth in Schedule I





 


with a copy to (which will not
constitute notice):


 


Goodwin Procter LLP


100 Northern Avenue





Boston, MA 02210


	Attention:	 Kenneth J. Gordon
	
	 	Michael J. Minahan
	
	 	Michael R. Patrone
	Email:	 kgordon@goodwinlaw.com
	 	mminihan@goodwinlaw.com
	 	mpatrone@goodwinlaw.com




 


Section 3.9     Counterparts.
This Agreement may be executed in two or more counterparts (any of which may be delivered by electronic transmission), each of
which shall constitute an original, and all of which taken together shall constitute one and the same instrument. Counterparts
may be delivered via electronic mail (including pdf or any electronic signature complying with the U.S. federal ESIGN Act of 2000,
e.g., www.docusign.com) or other transmission method and any counterpart so delivered shall be deemed to have been duly
and validly delivered and be valid and effective for all purposes





 






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Section 3.10     Several
Liability. The liability of any Company Stockholder hereunder is several (and not joint). Notwithstanding any other provision
of this Agreement, in no event will any Company Stockholder be liable for any other Company Stockholder’s breach of such
other Company Stockholder’s representations, warranties, covenants, or agreements contained in this Agreement.


 


Section 3.11     Entire
Agreement. This Agreement and the agreements referenced herein constitute the entire agreement and understanding of the parties
hereto in respect of the subject matter hereof and supersede all prior understandings, agreements or representations by or among
the parties hereto to the extent they relate in any way to the subject matter hereof.


 


[THE REMAINDER
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IN WITNESS WHEREOF, the
Company Stockholders, Acquiror, and the Company have each caused this Stockholder Support Agreement to be duly executed as of the
date first written above.


 


	 	COMPANY STOCKHOLDERS:
	 	 
	 	By:	/s/
    Gregory Thomas Mark                               
	 	Name: Gregory Thomas Mark
	 	 
	 	The Gregory Mark 2020 Grantor Retained Annuity Trust
	 	 
	 	/s/ Gregory Thomas Mark
	 	Name:Gregory Thomas Mark
	 	Title: Trustee
	 	 
	 	The Gregory Mark Irrevocable Family Trust
	 	 
	 	/s/ Gregory Thomas Mark
	 	Name: Gregory Thomas Mark
	 	Title: Trustee
	 	 
	 	/s/ Steven D. Mark
	 	Name: Steven D. Mark
	 	Title: Trustee
	 	 
	 	/s/ Diana E. Young
	 	Name: Diana E. Young
	 	Title: Trustee
	 	 
	 	By:	/s/ David Benhaim
	 	Name: David Benhaim



 


[Signature Page to Stockholder Support Agreement] 


 






     


     


    

 



	 	By: 	/s/ Shai Terem
	 	Name: Shai Terem
	 	 
	 	SUMMIT PARTNERS GROWTH EQUITY FUND IX-A, L.P.
	 	 
	 	By: Summit Partners GE IX, L.P.
	 	Its: General Partner
	 	 
	 	By: Summit Partners GE IX, LLC
	 	Its: General Partner
	 	 
	 	By: 	/s/ Michael A. Medici
	 	Name: Michael A. Medici
	 	Its: Member
	 	 
	 	SUMMIT PARTNERS GROWTH EQUITY FUND IX-B, L.P.
	 	 
	 	By: Summit Partners GE IX, L.P.
	 	Its: General Partner
	 	 
	 	By: Summit Partners GE IX, LLC
	 	Its: General Partner
	 	 
	 	By:	/s/ Michael A. Medici
	 	Name: Michael A. Medici
	 	Its: Member
	 	 
	 	SUMMIT INVESTORS GE IX/VC IV, LLC
	 	 
	 	By: Summit Investors Management, LLC
	 	Its: Manager
	 	 
	 	By: Summit Master Company, LLC
	 	Its: Managing Member
	 	 
	 	By: 	/s/ Michael A. Medici
	 	Name: Michael A. Medici
	 	Its: Member



 


[Signature Page to Stockholder Support Agreement]


 






     


     


    

 


	 	SUMMIT INVESTORS GE IX/VC IV (UK), L.P.
	 	 
	 	By: Summit Investors Management, LLC
	 	Its: General Partner
	 	 
	 	By: Summit Master Company, LLC
	 	Its: Managing Member
	 	 
	 	By: 	/s/ Michael A. Medici
	 	Name: Michael A. Medici
	 	Its: Member
	 	 
	 	MATRIX PARTNERS IX, L.P.
	 	 
	 	By: 	Matrix IX Management Co., L.L.C.,
	 	 	its General Partner
	 	 
	 	By: 	/s/ Antonio Rodriguez
	 	Name: Antonio Rodriguez 
	 	Title: Managing Member



 


	 	Address:	101 Main Street
	 	 	17th Floor
	 	 	Cambridge, MA 02142
	 	 
	 	WESTON & CO. IX LLC, as Nominee
	 	 
	 	By: Matrix Partners Management Services, L.P.,
	 	Sole Member
	 	 
	 	By: Matrix Partners Management Services GP, LLC,
	 	its General Partner



 


	 	By: 	/s/ Antonio Rodriguez
	 	Name: Antonio Rodriguez 
	 	Title: Managing Member



 


[Signature Page to Stockholder Support Agreement]


 






     


     


    

 


	 	NORTH BRIDGE VENTURE PARTNERS 7, L.P.
	 	 
	 	By:  	North Bridge Venture Management 7, L.P.
	 	 	Its General Partner
	 	 
	 	By: 	NBVM GP, LLC
	 	 	Its General Partner
	 	 
	 	By: 	/s/ Edward Anderson
	 	 	Name: Edward Anderson
	 	 	Title: Managing General Partner
	 	 
	 	 	TRINITY VENTURES XI, L.P.,
	 	 	TRINITY XI SIDE-BY-SIDE FUND, L.P., 
	 	 	TRINITY XI ENTREPRENEURS’ FUND, L.P., 
	 	 	Delaware Limited Partnerships
	 	 	 
	 	 	By: 	TRINITY TVL XI, LLC,
	 	 	 	Their General Partner
	 	 	 
	 	 	By: 	/s/ Nina C. Labatt
	 	 	 	Nina C. Labatt, Management Member
	 	 
	 	NEXT47 FUND 2018, L.P.
	 	 
	 	By: 	next47 Mid-Tier GP 2018, L.P. as general partner,  acting
by its general partner, next47 TTGP, LLC
	 	 
	 	By: 	/s/ Lak Ananth
	 	 	Name: Lak Ananth
	 	 	Title: Managing Partner
	 	 
	 	By: 	/s/ Brigit Meissner
	 	 	Name: Brigit Meissner
	 	 	Title: Authorized Signatory



 


[Signature Page to Stockholder Support Agreement]


 






     


     


    

 


	 	NEXT47 FUND 2019, L.P.
	 	 
	 	By:	 next47 Mid-Tier GP 2019, L.P. as general partner, acting
by its general partner, next47 TTGP, LLC
	 	 
	 	By: 	/s/ Lak Ananth
	 	 	Name: Lak Ananth
	 	 	Title: Managing Partner
	 	 	 
	 	By: 	/s/ Brigit Meissner
	 	 	Name: Brigit Meissner
	 	 	Title: Authorized Signatory
	 	 
	 	MICROSOFT GLOBAL FINANCE
	 	 
	 	By:	/s/ Keith Dolliver
	 	 	Name: Keith Dolliver
	 	 	Title: Vice President
	 	 
	 	PORSCHE DRITTE BETEILIGUNG GMBH
	 	 
	 	By: 	/s/ Dr. Johannes Lattwein
	 	 	Name: Dr. Johannes Lattwein
	 	 	Title: Managing Director
	 	 
	 	By: 	/s/ Aleksej Mitrjaschkin
	 	 	Name: Aleksej Mitrjaschkin
	 	 	Title: Authorized Signatory



 


[Signature Page to Stockholder Support Agreement]


 






     


     


    




 


IN WITNESS WHEREOF, the
Company Stockholders, Acquiror, and the Company have each caused this Stockholder Support Agreement to be duly executed as of the
date first written above.


 





 


		ACQUIROR:	



 


		ONE	



 


		By:	

                                                                   
/s/ Kevin E. Hartz
	 	 	Name: Kevin E. Hartz
	 	 	Title: Chief Executive Officer



 


[Signature Page to Stockholder Support Agreement]


 






     


     


    

 








 


IN WITNESS WHEREOF, the
Company Stockholders, Acquiror, and the Company have each caused this Stockholder Support Agreement to be duly executed as of the
date first written above.


  


	 	COMPANY:
	 	MARKFORGED, INC.
	 	 	 
		By:	

                                                                                
/s/ Shai Terem
	 	 	Name: Shai Terem
	 	 	Title: Chief Executive Officer



 


[Signature Page to Stockholder Support
Agreement]


 






     


     


    

 


Exhibit A


 


Form of Action by Written Consent
of the Stockholders of the Company


 






     


     


    

 


Schedule I


 


Company Stockholder Subject Shares


 






     


     


    

 


	
        Holders

         
	Common	Series A Outstanding	Series B Outstanding	Series C Outstanding	Series D Outstanding	Series Seed Outstanding	Notice Information
	Matrix Partners IX L.P.	 	13,679,283	7,746,503	 	793,490	7,705,502	101 Main Street
 17th Floor
 Cambridge, MA 02142

                                                                                 

	Microsoft Global Finance	315,637	 	 	4,822,763	105,212	 	One Microsoft Way
 Redmond, WA 98052-6399 Attention: Keith Dolliver
 Associate General Counsel

                                                                                 

	Next47 Fund 2018, L.P.	 	 	 	7,234,145	 	 	
        537 Hamilton Avenue, 2nd Floor, 94301 Palo Alto, CA

        Attn: Lak Ananth (Managing Partner)

        legal@next47.com

         

	Next47 Fund 2019, L.P.	 	 	 	 	833,148	 	
        537 Hamilton Avenue, 2nd Floor, 94301 Palo Alto, CA

         

        Attn: Lak Ananth (Managing Partner)

         

        legal@next47.com

         

	North Bridge Venture Partners 7, L.P.	 	14,362,960	8,133,665	 	 	8,090,615	950 Winter Street, Suite 4600, Waltham, MA 02451. Attention: Ken DiPoto

                                                                                 

	PORSCHE DRITTE BETEILIGUNG GMBH	 	 	 	2,411,382	 	277,774	
        Porscheplatz 1

        70435 Stuttgart

        Germany

         

	Summit Investors GE IX/VC IV (UK), L.P.	 	 	 	 	10,937	 	
        222 Berkeley Street, 18th Floor

        Boston, MA 02116

         

         

	Summit Investors GE IX/VC IV, LLC	 	 	 	 	86,411	 	
        222 Berkeley Street, 18th Floor

        Boston, MA 02116

         

	Summit Partners Growth Equity Fund IX-A, L.P.	 	 	 	 	9,331,785	 	
        222 Berkeley Street, 18th Floor

        Boston, MA 02116

         

         

	Summit Partners Growth Equity Fund IX-B, L.P.	 	 	 	 	5,826,637	 	
        222 Berkeley Street, 18th Floor

        Boston, MA 02116




 






     


     


    

 


	The Gregory Mark 2020 Grantor Retained Annuity Trust	1,401,869	 	 	 	 	 	
        547 Ward Street

        Newton, MA 02459

	
        The Gregory Mark Irrevocable
        Family Trust

         
	2,803,738	 	 	 	 	 	
        547 Ward Street

        Newton, MA 02459

	Trinity Ventures XI, L.P.	 	 	17,698,596	 	 	 	
        2480 Sand Hill Road, Suite 200, Menlo Park, CA 94025

        Tel. 650-854-9500

        nina@trinityventures.com

         

	Trinity XI Entrepreneurs’ Fund, L.P. 	 	 	284,186	 	 	 	
        2480 Sand Hill Road, Suite 200, Menlo Park, CA 94025

        Tel. 650-854-9500

        nina@trinityventures.com

         

	Trinity XI Side-By-Side Fund, L.P.	 	 	141,368	 	 	 	
        2480 Sand Hill Road, Suite 200, Menlo Park, CA 94025

        Tel. 650-854-9500

        nina@trinityventures.com

         

	Weston & Co. IX LLC, as Nominee	 	683,677	387,162	 	39,658	385,113	101 Main Street
 17th Floor
 Cambridge, MA 02142

                                                                                 

	David Benhaim	530,573	 	 	 	 	 	
        7 Dana Place, Cambridge MA 02138

         

	Shai Terem	 	 	 	 	 	 	19 Shute Path, Newton MA 02459

                                                                                 

	Gregory Thomas Mark	24,186,887	 	 	 	 	 	
        547 Ward Street

        Newton, MA 02459



 






     


     


    

 


Schedule II


 


Parties to the Registration Rights Agreement


 


		1.	Shai Terem






		2.	Greg Mark






		3.	David Benhaim






		4.	The Gregory Mark Irrevocable Family Trust






		5.	The Gregory Mark 2020 Grantor Retained Annuity Trust






		6.	Summit Partners Growth Equity Fund IX-A, L.P.






		7.	Summit Partners Growth Equity Fund IX-B, L.P.






		8.	Summit Investors GE IX/VC IV, LLC






		9.	Summit Investors GE IX/VC IV (UK), L.P.






		10.	Matrix Partners IX, L.P.






		11.	Weston & Co. IX LLC






		12.	North Bridge Venture Partners 7, L.P.






		13.	Trinity Ventures XI, L.P.






		14.	Trinity XI Side-By-Side Fund, L.P.






		15.	Trinity XI Entrepreneurs’ Fund, L.P.






		16.	Next47 Fund 2018, L.P.






		17.	Next47 Fund 2019, L.P.






		18.	Microsoft Global Finance






		19.	Porsche Dritte Beteiligung GMBH



 






    Sch II-1


     


    

  


Schedule III


 


Parties to the Lock-Up Agreement


 


		1.	Shai Terem






		2.	Greg Mark






		3.	David Benhaim






		4.	The Gregory Mark Irrevocable Family Trust






		5.	The Gregory Mark 2020 Grantor Retained Annuity Trust






		6.	Summit Partners Growth Equity Fund IX-A, L.P.






		7.	Summit Partners Growth Equity Fund IX-B, L.P.






		8.	Summit Investors GE IX/VC IV, LLC






		9.	Summit Investors GE IX/VC IV (UK), L.P.






		10.	Matrix Partners IX, L.P.






		11.	Weston & Co. IX LLC






		12.	North Bridge Venture Partners 7, L.P.






		13.	Trinity Ventures XI, L.P.






		14.	Trinity XI Side-By-Side Fund, L.P.






		15.	Trinity XI Entrepreneurs’ Fund, L.P.






		16.	Next47 Fund 2018, L.P.






		17.	Next47 Fund 2019, L.P.






		18.	Microsoft Global Finance






		19.	Porsche Dritte Beteiligung GMBH



 






    Sch V-1


     


    

 








Annex A


 


Form of Joinder Agreement


 


This Joinder Agreement
(this “Joinder Agreement”) is made as of the date written below by the undersigned (the “Joining Party”)
in accordance with the Stockholder Support Agreement, dated as of February 23, 2021 (as amended, supplemented or otherwise
modified from time to time, the “Support Agreement”), by and among one, a Cayman Islands exempted company limited
by shares (which shall migrate to and domesticate as a Delaware corporation), MarkForged, Inc., a Delaware corporation, and
the Company Stockholders set forth on Schedule I thereto. Capitalized terms used herein and not otherwise defined shall
have the meaning ascribed to them in the Support Agreement.


 


The Joining Party hereby
acknowledges, agrees and confirms that, by its execution of this Joinder Agreement, the Joining Party shall be deemed to be a party
to, and a “Company Stockholder” under, the Support Agreement as of the date hereof and shall have all of the rights
and obligations of a Company Stockholder as if it had executed the Support Agreement. The Joining Party hereby ratifies, as of
the date hereof, and agrees to be bound by, all of the terms, provisions and conditions contained in the Support Agreement.


 


IN WITNESS WHEREOF, the
undersigned has duly executed this Joinder Agreement as of the date written below.


 


Date:                        ,
2021


 


		By:	
	 	 	Name:
	 	 	Title:
	 	 	 
	 	 	Address for Notices:
	 	 	 
	 	 	With copies to:



 









    Annex A-1