Exhibit 10.4


 


REGISTRATION AND SHAREHOLDER RIGHTS AGREEMENT


 


THIS REGISTRATION AND SHAREHOLDER
RIGHTS AGREEMENT (this “Agreement”), dated as of [ ], 2021, is made and entered into by and among Millstreet
Capital Acquisition Corp., a Delaware corporation (the “Company”), Millstreet Capital Acquisition Sponsor, LLC,
a Delaware limited liability company (the “Sponsor”), and Seaport Global Securities LLC (“Seaport”)
(the Sponsor, together with Seaport, and any person or entity who hereafter becomes a party to this Agreement pursuant to Section
5.2 of this Agreement, a “Holder” and collectively the “Holders”).


 


RECITALS


 


WHEREAS, on December
23, 2020, pursuant to a Securities Subscription Agreement, the Sponsor purchased an aggregate of 3,593,750 shares (the “Founder Shares”)
of the Company’s Class B common stock, par value $0.0001 per share, up to 468,750 of which will be forfeited to the Company
for no consideration depending on the extent to which the underwriters of the Company’s initial public offering exercise their over-allotment
option;


 


WHEREAS, the Founder
Shares are convertible into shares of the Company’s Class A common stock, par value $0.0001 per share (the “Common Stock”),
on the terms and conditions provided in the Company’s amended and restated certificate of incorporation;


 


WHEREAS, on [ ], 2021,
the Company entered into Private Placement Warrant Purchase Agreements with the Sponsor and Seaport, pursuant to which the Sponsor agreed
to purchase 3,184,166 warrants and Seaport agreed to purchase 232,500 warrants (or 3,479,791 to the Sponsor and 249,375 to Seaport if
the over-allotment option in connection with the Company’s initial public offering is exercised) (the “Private Placement Warrants”),
in a private placement transaction occurring simultaneously with the closing of the Company’s initial public offering; and


 


WHEREAS, in order to
finance the Company’s transaction costs in connection with an intended initial Business Combination (as defined below) the Sponsor
or an affiliate of the Sponsor or certain of the Company’s officers and directors may loan to the Company funds as the Company may
require, of which up to $1,500,000 of such loans may be convertible into warrants (“Working Capital Warrants”)
at a price of $1.50 per warrant; and


 


WHEREAS, the Company
and the Holders desire to enter into this Agreement, pursuant to which the Company shall grant the Holders certain registration rights
with respect to certain securities of the Company, as well as the right to nominate certain directors to the Company’s Board (as
defined below), as set forth in this Agreement.


 


NOW, THEREFORE,
in consideration of the representations, covenants and agreements contained herein, and certain other good and valuable consideration,
the receipt and sufficiency of which are hereby acknowledged, the parties hereto, intending to be legally bound, hereby agree as follows:


 


ARTICLE I


DEFINITIONS


 


1.1 Definitions.
The terms defined in this Article I shall, for all purposes of this Agreement, have the respective meanings set
forth below:


 


“Adverse Disclosure”
shall mean any public disclosure of material non-public information, which disclosure, in the good faith judgment of the Chief Executive
Officer or principal financial officer of the Company, after consultation with counsel to the Company, (i) would be required to be made
in any Registration Statement or Prospectus in order for the applicable Registration Statement or Prospectus not to contain any untrue
statement of a material fact or omit to state a material fact necessary to make the statements contained therein (in the case of any prospectus
and any preliminary prospectus, in the light of the circumstances under which they were made) not misleading, (ii) would not be required
to be made at such time if the Registration Statement were not being filed, and (iii) the Company has a bona fide business purpose for
not making such information public.


 


“Agreement”
shall have the meaning given in the Preamble.


 






     


     


    

 


“Board”
shall mean the Board of Directors of the Company.


 


“Business Combination”
shall mean any merger, capital stock exchange, asset acquisition, stock purchase, reorganization or other similar business combination
with one or more businesses, involving the Company.


 


“Commission”
shall mean the Securities and Exchange Commission.


 


“Common Stock”
shall have the meaning given in the Recitals hereto.


 


“Company”
shall have the meaning given in the Preamble.


 


“Demand Registration”
shall have the meaning given in subsection 2.1.1.


 


“Demanding Holder”
shall have the meaning given in subsection 2.1.1.


 


“Exchange Act”
shall mean the Securities Exchange Act of 1934, as it may be amended from time to time.


 


“Form S-1”
shall have the meaning given in subsection 2.1.1.


 


“Form S-3”
shall have the meaning given in subsection 2.3.


 


“Founder Shares”
shall have the meaning given in the Recitals hereto and shall be deemed to include the shares of Common Stock issuable upon conversion
thereof.


 


“Founder Shares Lock-up Period”
shall mean, with respect to the Founder Shares, the period ending on the earlier of (A) one year after the completion of the Company’s
initial Business Combination or (B) subsequent to the Business Combination, (x) if the last sale price of the Common Stock equals or exceeds
$12.00 per share (as adjusted for stock splits, stock dividends, reorganizations, recapitalizations and the like) for any 20 trading days
within any 30-trading day period commencing at least 150 days after the Company’s initial Business Combination or (y) the date on
which the Company completes a liquidation, merger, capital stock exchange, reorganization or other similar transaction that results in
all of the Company’s stockholders having the right to exchange their shares of Common Stock for cash, securities or other property.


 


“Holders”
shall have the meaning given in the Preamble.


 


“Insider Letter”
shall mean that certain letter agreement, dated as of [ ], 2021, by and among the Company, the Sponsor and each of the Company’s
officers, directors and director nominees.


 


“Maximum Number of Securities”
shall have the meaning given in subsection 2.1.4.


 


“Misstatement”
shall mean an untrue statement of a material fact or an omission to state a material fact required to be stated in a Registration Statement
or Prospectus, or necessary to make the statements in a Registration Statement or Prospectus (in the light of the circumstances under
which they were made) not misleading.


 


“Nominee”
is defined in Section 5.1.


 


“Permitted Transferees”
shall mean any person or entity to whom a Holder of Registrable Securities is permitted to transfer such Registrable Securities prior
to the expiration of the Founder Shares Lock-up Period or Private Placement Lock-up Period, as the case may be, under the Insider Letter,
this Agreement and any other applicable agreement between such Holder and the Company, and to any transferee thereafter.


 


“Piggyback Registration”
shall have the meaning given in subsection 2.2.1.


 


“Private Placement Lock-up Period”
shall mean, with respect to Private Placement Warrants that are held by the initial purchasers of such Private Placement Warrants or
their Permitted Transferees, and any of the Common Stock issued or issuable upon the exercise or conversion of the Private Placement
Warrants and that are held by the initial purchasers of the Private Placement Warrants or their Permitted Transferees, the period
ending 30 days after the completion of the Company’s initial Business Combination.


 






     


     


    

 


“Private Placement Warrants”
shall have the meaning given in the Recitals hereto.


 


“Pro Rata”
shall have the meaning given in subsection 2.1.4.


 


“Prospectus”
shall mean the prospectus included in any Registration Statement, as supplemented by any and all prospectus supplements and as amended
by any and all post-effective amendments and including all material incorporated by reference in such prospectus.


 


“Registrable Security”
shall mean (a) the Founder Shares and the shares of Common Stock issued or issuable upon the conversion of any Founder Shares, (b) the
Private Placement Warrants (including any shares of the Common Stock issued or issuable upon the exercise of any such Private Placement
Warrants), (c) any outstanding share of the Common Stock or any other equity security (including the shares of Common Stock issued or
issuable upon the exercise of any other equity security) of the Company held by a Holder as of the date of this Agreement, (d) any shares
of the Common Stock issued or issuable upon the exercise of the Working Capital Warrants, and (e) any other equity security of the Company
issued or issuable with respect to any such share of the Common Stock by way of a stock dividend or stock split or in connection with
a combination of shares, recapitalization, merger, consolidation or reorganization; provided, however, that, as
to any particular Registrable Security, such securities shall cease to be Registrable Securities when: (A) a Registration Statement with
respect to the sale of such securities shall have become effective under the Securities Act and such securities shall have been sold,
transferred, disposed of or exchanged in accordance with such Registration Statement; (B) such securities shall have been otherwise transferred,
new certificates for such securities not bearing a legend restricting further transfer shall have been delivered by the Company and subsequent
public distribution of such securities shall not require registration under the Securities Act; (C) such securities shall have ceased
to be outstanding; (D) such securities may be sold without registration pursuant to Rule 144 promulgated under the Securities Act (or
any successor rule promulgated thereafter by the Commission) (but with no volume or other restrictions or limitations); or (E) such securities
have been sold to, or through, a broker, dealer or underwriter in a public distribution or other public securities transaction.


 


“Registration”
shall mean a registration effected by preparing and filing a registration statement or similar document in compliance with the requirements
of the Securities Act, and the applicable rules and regulations promulgated thereunder, and such registration statement becoming effective.


 


“Registration Expenses”
shall mean the out-of-pocket expenses of a Registration, including, without limitation, the following:


 


(A) all registration and filing
fees (including fees with respect to filings required to be made with the Financial Industry Regulatory Authority, Inc.) and any securities
exchange on which the Common Stock is then listed;


 


(B) fees and expenses of compliance
with securities or blue sky laws (including reasonable fees and disbursements of counsel for the Underwriters in connection with blue
sky qualifications of Registrable Securities);


 


(C) printing, messenger, telephone
and delivery expenses;


 


(D) reasonable fees and disbursements
of counsel for the Company;


 


(E) reasonable fees and disbursements
of all independent registered public accountants of the Company incurred specifically in connection with such Registration; and


 


(F) reasonable fees and expenses
of one (1) legal counsel selected by the majority-in-interest of the Demanding Holders initiating a Demand Registration to be registered
for offer and sale in the applicable Registration.


 


“Registration Statement”
shall mean any registration statement that covers the Registrable Securities pursuant to the provisions of this Agreement, including
the Prospectus included in such registration statement, amendments (including post-effective amendments) and supplements to such
registration statement, and all exhibits to and all material incorporated by reference in such registration statement.


 






     


     


    

 


“Requesting Holder”
shall have the meaning given in subsection 2.1.1.


 


“Securities Act”
shall mean the Securities Act of 1933, as amended from time to time.


 


“Sponsor”
shall have the meaning given in the Preamble.


 


“Underwriter”
shall mean a securities dealer who purchases any Registrable Securities as principal in an Underwritten Offering and not as part of such
dealer’s market-making activities.


 


“Underwritten Registration”
or “Underwritten Offering” shall mean a Registration in which securities of the Company are
sold to an Underwriter in a firm commitment underwriting for distribution to the public.


 


“Working Capital
Warrants” shall have the meaning given in the Recitals hereto.


 


ARTICLE II


REGISTRATIONS


 


2.1 Demand Registration.


 


2.1.1 Request for
Registration. Subject to the provisions of subsection 2.1.4 and Section 2.4 hereof, at any time and from time to
time on or after the date the Company consummates the Business Combination, the Holders of at least a majority in interest of the then-outstanding
number of Registrable Securities (the “Demanding Holders”) may make a written demand for
Registration of all or part of their Registrable Securities, which written demand shall describe the amount and type of securities to
be included in such Registration and the intended method(s) of distribution thereof (such written demand a “Demand Registration”).
The Company shall, within ten (10) days of the Company’s receipt of the Demand Registration, notify, in writing, all other Holders
of Registrable Securities of such demand, and each Holder of Registrable Securities who thereafter wishes to include all or a portion
of such Holder’s Registrable Securities in a Registration pursuant to a Demand Registration (each such Holder that includes all
or a portion of such Holder’s Registrable Securities in such Registration, a “Requesting Holder”)
shall so notify the Company, in writing, within five (5) days after the receipt by the Holder of the notice from the Company. Upon receipt
by the Company of any such written notification from a Requesting Holder(s) to the Company, such Requesting Holder(s) shall be entitled
to have their Registrable Securities included in a Registration pursuant to a Demand Registration and the Company shall effect, as soon
thereafter as practicable, but not more than forty five (45) days immediately after the Company’s receipt of the Demand Registration,
the Registration of all Registrable Securities requested by the Demanding Holders and Requesting Holders pursuant to such Demand Registration.
Notwithstanding the foregoing, Seaport may not exercise its Demand Registration rights (5) years after the effective date of the Registration
Statement and may not exercise this right on more than one occasion, as required by FINRA Rule 5110(e)(1), and under no circumstances
shall the Company be obligated to effect more than an aggregate of three (3) Registrations pursuant to a Demand Registration under this subsection
2.1.1 with respect to any or all Registrable Securities; provided, however, that a Registration shall
not be counted for such purposes unless a Form S-1 or any similar long-form registration statement that may be available at such time
(“Form S-1”) has become effective and all of the Registrable Securities requested by the Requesting Holders to be registered
on behalf of the Requesting Holders in such Form S-1 Registration have been sold, in accordance with Section 3.1 of this
Agreement.


 


2.1.2 Effective
Registration. Notwithstanding the provisions of subsection 2.1.1 above or any other part of this Agreement, a
Registration pursuant to a Demand Registration shall not count as a Registration unless and until (i) the Registration Statement
filed with the Commission with respect to a Registration pursuant to a Demand Registration has been declared effective by the
Commission and (ii) the Company has complied with all of its obligations under this Agreement with respect
thereto; provided, further, that if, after such Registration Statement has been declared effective, an
offering of Registrable Securities in a Registration pursuant to a Demand Registration is subsequently interfered with by any stop
order or injunction of the Commission, federal or state court or any other governmental agency the Registration Statement with
respect to such Registration shall be deemed not to have been declared effective, unless and until, (i) such stop order or
injunction is removed, rescinded or otherwise terminated, and (ii) a majority-in-interest of the Demanding Holders initiating such
Demand Registration thereafter affirmatively elect to continue with such Registration and accordingly notify the Company in writing,
but in no event later than five (5) days, of such election; and provided, further, that the Company shall
not be obligated or required to file another Registration Statement until the Registration Statement that has been previously filed
with respect to a Registration pursuant to a Demand Registration becomes effective or is subsequently terminated.


 






     


     


    

 


2.1.3 Underwritten
Offering. Subject to the provisions of subsection 2.1.4 and Section 2.4 hereof, if a majority-in-interest
of the Demanding Holders so advise the Company as part of their Demand Registration that the offering of the Registrable Securities pursuant
to such Demand Registration shall be in the form of an Underwritten Offering, then the right of such Demanding Holder or Requesting Holder
(if any) to include its Registrable Securities in such Registration shall be conditioned upon such Holder’s participation in such
Underwritten Offering and the inclusion of such Holder’s Registrable Securities in such Underwritten Offering to the extent provided
herein. All such Holders proposing to distribute their Registrable Securities through an Underwritten Offering under this subsection
2.1.3 shall enter into an underwriting agreement in customary form with the Underwriter(s) selected for such Underwritten Offering
by the majority-in-interest of the Demanding Holders initiating the Demand Registration.


 


2.1.4 Reduction
of Underwritten Offering. If the managing Underwriter or Underwriters in an Underwritten Registration pursuant to a Demand Registration,
in good faith, advises the Company, the Demanding Holders and the Requesting Holders (if any) in writing that the dollar amount or number
of Registrable Securities that the Demanding Holders and the Requesting Holders (if any) desire to sell, taken together with all other
Common Stock or other equity securities that the Company desires to sell and the Common Stock, if any, as to which a Registration has
been requested pursuant to separate written contractual piggy-back registration rights held by any other stockholders who desire to sell,
exceeds the maximum dollar amount or maximum number of equity securities that can be sold in the Underwritten Offering without adversely
affecting the proposed offering price, the timing, the distribution method, or the probability of success of such offering (such maximum
dollar amount or maximum number of such securities, as applicable, the “Maximum Number of Securities”),
then the Company shall include in such Underwritten Offering, as follows: (i) first, the Registrable Securities of the Demanding Holders
and the Requesting Holders (if any) (pro rata based on the respective number of Registrable Securities that each Demanding Holder and
Requesting Holder (if any) has requested be included in such Underwritten Registration and the aggregate number of Registrable Securities
that the Demanding Holders and Requesting Holders have requested be included in such Underwritten Registration (such proportion is referred
to herein as “Pro Rata”)) that can be sold without exceeding the Maximum Number of Securities;
(ii) second, to the extent that the Maximum Number of Securities has not been reached under the foregoing clause (i), the Registrable
Securities of Holders (Pro Rata, based on the respective number of Registrable Securities that each Holder has so requested) exercising
their rights to register their Registrable Securities pursuant to subsection 2.2.1 hereof, without exceeding the Maximum
Number of Securities; and (iii) third, to the extent that the Maximum Number of Securities has not been reached under the foregoing clauses
(i) and (ii), the Common Stock or other equity securities that the Company desires to sell, which can be sold without exceeding the Maximum
Number of Securities; and (iv) fourth, to the extent that the Maximum Number of Securities has not been reached under the foregoing clauses
(i), (ii) and (iii), the Common Stock or other equity securities of other persons or entities that the Company is obligated to register
in a Registration pursuant to separate written contractual arrangements with such persons and that can be sold without exceeding the Maximum
Number of Securities.


 


2.1.5 Demand Registration
Withdrawal. A majority-in-interest of the Demanding Holders initiating a Demand Registration or a majority-in-interest of the Requesting
Holders (if any), pursuant to a Registration under subsection 2.1.1 shall have the right to withdraw from a Registration
pursuant to such Demand Registration for any or no reason whatsoever upon written notification to the Company and the Underwriter or Underwriters
(if any) of their intention to withdraw from such Registration prior to the effectiveness of the Registration Statement filed with the
Commission with respect to the Registration of their Registrable Securities pursuant to such Demand Registration. Notwithstanding anything
to the contrary in this Agreement, the Company shall be responsible for the Registration Expenses incurred in connection with a Registration
pursuant to a Demand Registration prior to its withdrawal under this subsection 2.1.5.


 






     


     


    

 


2.2 Piggyback Registration.


 


2.2.1 Piggyback
Rights. If, at any time on or after the date the Company consummates a Business Combination, the Company proposes to file a Registration
Statement under the Securities Act with respect to an offering of equity securities, or securities or other obligations exercisable or
exchangeable for, or convertible into equity securities, for its own account or for the account of stockholders of the Company (or by
the Company and by the stockholders of the Company including, without limitation, pursuant to Section 2.1 hereof), other
than a Registration Statement (i) filed in connection with any employee stock option or other benefit plan, (ii) for an exchange offer
or offering of securities solely to the Company’s existing stockholders, (iii) for an offering of debt that is convertible into
equity securities of the Company or (iv) for a dividend reinvestment plan, then the Company shall give written notice of such proposed
filing to all of the Holders of Registrable Securities as soon as practicable but not less than ten (10) days before the anticipated filing
date of such Registration Statement, which notice shall (A) describe the amount and type of securities to be included in such offering,
the intended method(s) of distribution, and the name of the proposed managing Underwriter or Underwriters, if any, in such offering, and
(B) offer to all of the Holders of Registrable Securities the opportunity to register the sale of such number of Registrable Securities
as such Holders may request in writing within five (5) days after receipt of such written notice (such Registration a “Piggyback Registration”).
The Company shall, in good faith, cause such Registrable Securities to be included in such Piggyback Registration and shall use its best
efforts to cause the managing Underwriter or Underwriters of a proposed Underwritten Offering to permit the Registrable Securities requested
by the Holders pursuant to this subsection 2.2.1 to be included in a Piggyback Registration on the same terms and conditions
as any similar securities of the Company included in such Registration and to permit the sale or other disposition of such Registrable
Securities in accordance with the intended method(s) of distribution thereof. Notwithstanding the foregoing, Seaport may not exercise
its PiggyBack Registration right seven (7) years after the effective date of the Registration Statement, as required by FINRA Rule 5110(e)(1).
All such Holders proposing to distribute their Registrable Securities through an Underwritten Offering under this subsection 2.2.1 shall
enter into an underwriting agreement in customary form with the Underwriter(s) selected for such Underwritten Offering by the Company.


 


2.2.2 Reduction
of Piggyback Registration. If the managing Underwriter or Underwriters in an Underwritten Registration that is to be a Piggyback Registration,
in good faith, advises the Company and the Holders of Registrable Securities participating in the Piggyback Registration in writing that
the dollar amount or number of the Common Stock that the Company desires to sell, taken together with (i) the Common Stock, if any, as
to which Registration has been demanded pursuant to separate written contractual arrangements with persons or entities other than the
Holders of Registrable Securities hereunder (ii) the Registrable Securities as to which registration has been requested pursuant to Section
2.2 hereof, and (iii) the Common Stock, if any, as to which Registration has been requested pursuant to separate written contractual
piggy-back registration rights of other stockholders of the Company, exceeds the Maximum Number of Securities, then:


 


(a) If the Registration
is undertaken for the Company’s account, the Company shall include in any such Registration (A) first, the Common Stock or other
equity securities that the Company desires to sell, which can be sold without exceeding the Maximum Number of Securities; (B) second,
to the extent that the Maximum Number of Securities has not been reached under the foregoing clause (A), the Registrable Securities of
Holders exercising their rights to register their Registrable Securities pursuant to subsection 2.2.1 hereof, Pro Rata,
which can be sold without exceeding the Maximum Number of Securities; and (C) third, to the extent that the Maximum Number of Securities
has not been reached under the foregoing clauses (A) and (B), the Common Stock, if any, as to which Registration has been requested pursuant
to written contractual piggy-back registration rights of other stockholders of the Company, which can be sold without exceeding the Maximum
Number of Securities;


 


(b) If the
Registration is pursuant to a request by persons or entities other than the Holders of Registrable Securities, then the Company
shall include in any such Registration (A) first, the Common Stock or other equity securities, if any, of such requesting persons or
entities, other than the Holders of Registrable Securities, which can be sold without exceeding the Maximum Number of Securities;
(B) second, to the extent that the Maximum Number of Securities has not been reached under the foregoing clause (A), the Registrable
Securities of Holders exercising their rights to register their Registrable Securities pursuant to subsection 2.2.1, pro
rata based on the number of Registrable Securities that each Holder has requested be included in such Underwritten Registration and
the aggregate number of Registrable Securities that the Holders have requested to be included in such Underwritten Registration,
which can be sold without exceeding the Maximum Number of Securities; (C) third, to the extent that the Maximum Number of Securities
has not been reached under the foregoing clauses (A) and (B), the Common Stock or other equity securities that the Company desires
to sell, which can be sold without exceeding the Maximum Number of Securities; and (D) fourth, to the extent that the Maximum Number
of Securities has not been reached under the foregoing clauses (A), (B) and (C), the Common Stock or other equity securities for the
account of other persons or entities that the Company is obligated to register pursuant to separate written contractual arrangements
with such persons or entities, which can be sold without exceeding the Maximum Number of Securities.


 






     


     


    

 


2.2.3 Piggyback
Registration Withdrawal. Any Holder of Registrable Securities shall have the right to withdraw from a Piggyback Registration for any
or no reason whatsoever upon written notification to the Company and the Underwriter or Underwriters (if any) of his, her or its intention
to withdraw from such Piggyback Registration prior to the effectiveness of the Registration Statement filed with the Commission with respect
to such Piggyback Registration. The Company (whether on its own good faith determination or as the result of a request for withdrawal
by persons pursuant to separate written contractual obligations) may withdraw a Registration Statement filed with the Commission in connection
with a Piggyback Registration at any time prior to the effectiveness of such Registration Statement. Notwithstanding anything to the contrary
in this Agreement, the Company shall be responsible for the Registration Expenses incurred in connection with the Piggyback Registration
prior to its withdrawal under this subsection 2.2.3.


 


2.2.4 Unlimited
Piggyback Registration Rights. For purposes of clarity, any Registration effected pursuant to Section 2.2 hereof
shall not be counted as a Registration pursuant to a Demand Registration effected under Section 2.1 hereof.


 


2.3 Registrations
on Form S-3. Any Holder of Registrable Securities may at any time, and from time to time, request in writing that the Company, pursuant
to Rule 415 under the Securities Act (or any successor rule promulgated thereafter by the Commission), register the resale of any or all
of their Registrable Securities on Form S-3 or any similar short form registration statement that may be available at such time (“Form
S-3”); provided, however, that the Company shall not be obligated to effect such request through
an Underwritten Offering. Within five (5) days of the Company’s receipt of a written request from a Holder or Holders of Registrable
Securities for a Registration on Form S-3, the Company shall promptly give written notice of the proposed Registration on Form S-3 to
all other Holders of Registrable Securities, and each Holder of Registrable Securities who thereafter wishes to include all or a portion
of such Holder’s Registrable Securities in such Registration on Form S-3 shall so notify the Company, in writing, within ten (10)
days after the receipt by the Holder of the notice from the Company. As soon as practicable thereafter, but not more than twelve (12)
days after the Company’s initial receipt of such written request for a Registration on Form S-3, the Company shall register all
or such portion of such Holder’s Registrable Securities as are specified in such written request, together with all or such portion
of Registrable Securities of any other Holder or Holders joining in such request as are specified in the written notification given by
such Holder or Holders; provided, however, that the Company shall not be obligated to effect any such Registration
pursuant to Section 2.3 hereof if (i) a Form S-3 is not available for such offering; or (ii) the Holders of Registrable
Securities, together with the Holders of any other equity securities of the Company entitled to inclusion in such Registration, propose
to sell the Registrable Securities and such other equity securities (if any) at any aggregate price to the public of less than $10,000,000.


 


2.4 Restrictions on
Registration Rights. If (A) during the period starting with the date sixty (60) days prior to the Company’s good faith estimate
of the date of the filing of, and ending on a date one hundred and twenty (120) days after the effective date of, a Company initiated
Registration and provided that the Company has delivered written notice to the Holders prior to receipt of a Demand Registration pursuant
to subsection 2.1.1 and it continues to actively employ, in good faith, all reasonable efforts to cause the applicable
Registration Statement to become effective; (B) the Holders have requested an Underwritten Registration and the Company and the Holders
are unable to obtain the commitment of underwriters to firmly underwrite the offer; or (C) in the good faith judgment of the Board such
Registration would be seriously detrimental to the Company and the Board concludes as a result that it is essential to defer the filing
of such Registration Statement at such time, then in each case the Company shall furnish to such Holders a certificate signed by the Chairman
of the Board stating that in the good faith judgment of the Board it would be seriously detrimental to the Company for such Registration
Statement to be filed in the near future and that it is therefore essential to defer the filing of such Registration Statement. In such
event, the Company shall have the right to defer such filing for a period of not more than thirty (30) days; provided, however,
that the Company shall not defer its obligation in this manner more than once in any 12-month period.


 






     


     


    

 


ARTICLE III


COMPANY PROCEDURES


 


3.1 General Procedures.
If at any time on or after the date the Company consummates a Business Combination the Company is required to effect the Registration
of Registrable Securities, the Company shall use its best efforts to effect such Registration to permit the sale of such Registrable Securities
in accordance with the intended plan of distribution thereof, and pursuant thereto the Company shall, as expeditiously as possible:


 


3.1.1 prepare and file with
the Commission as soon as practicable a Registration Statement with respect to such Registrable Securities and use its reasonable best
efforts to cause such Registration Statement to become effective and remain effective until all Registrable Securities covered by such
Registration Statement have been sold;


 


3.1.2 prepare and file with
the Commission such amendments and post-effective amendments to the Registration Statement, and such supplements to the Prospectus, as
may be requested by any Holder or any Underwriter of Registrable Securities or as may be required by the rules, regulations or instructions
applicable to the registration form used by the Company or by the Securities Act or rules and regulations thereunder to keep the Registration
Statement effective until all Registrable Securities covered by such Registration Statement are sold in accordance with the intended plan
of distribution set forth in such Registration Statement or supplement to the Prospectus;


 


3.1.3 prior to filing a
Registration Statement or prospectus, or any amendment or supplement thereto, furnish without charge to the Underwriters, if any, and
each Holder of Registrable Securities included in such Registration, and each such Holder’s legal counsel, copies of such Registration
Statement as proposed to be filed, each amendment and supplement to such Registration Statement (in each case including all exhibits thereto
and documents incorporated by reference therein), the Prospectus included in such Registration Statement (including each preliminary Prospectus),
and such other documents as the Underwriters and each Holder of Registrable Securities included in such Registration or the legal counsel
for any such Holders may request in order to facilitate the disposition of the Registrable Securities owned by such Holders;


 


3.1.4 prior to any public
offering of Registrable Securities, use its best efforts to (i) register or qualify the Registrable Securities covered by the Registration
Statement under such securities or “blue sky” laws of such jurisdictions in the United States as any Holder of Registrable
Securities included in such Registration Statement (in light of their intended plan of distribution) may request and (ii) take such action
necessary to cause such Registrable Securities covered by the Registration Statement to be registered with or approved by such other governmental
authorities as may be necessary by virtue of the business and operations of the Company and do any and all other acts and things that
may be necessary or advisable to enable the Holders of Registrable Securities included in such Registration Statement to consummate the
disposition of such Registrable Securities in such jurisdictions; provided, however, that the Company shall not
be required to qualify generally to do business in any jurisdiction where it would not otherwise be required to qualify or take any action
to which it would be subject to general service of process or taxation in any such jurisdiction where it is not then otherwise so subject;


 


3.1.5 cause all such Registrable
Securities to be listed on each securities exchange or automated quotation system on which similar securities issued by the Company are
then listed;


 


3.1.6 provide a transfer
agent or warrant agent, as applicable, and registrar for all such Registrable Securities no later than the effective date of such Registration
Statement;


 


3.1.7 advise each seller
of such Registrable Securities, promptly after it shall receive notice or obtain knowledge thereof, of the issuance of any stop order
by the Commission suspending the effectiveness of such Registration Statement or the initiation or threatening of any proceeding for such
purpose and promptly use its reasonable best efforts to prevent the issuance of any stop order or to obtain its withdrawal if such stop
order should be issued;


 


3.1.8 at least five (5)
days prior to the filing of any Registration Statement or Prospectus or any amendment or supplement to such Registration Statement or
Prospectus or any document that is to be incorporated by reference into such Registration Statement or Prospectus, furnish a copy thereof
to each seller of such Registrable Securities and its counsel, including, without limitation, providing copies promptly upon receipt of
any comment letters received with respect to any such Registration Statement or Prospectus;


 






     


     


    

 


3.1.9 notify the Holders
at any time when a Prospectus relating to such Registration Statement is required to be delivered under the Securities Act, of the happening
of any event as a result of which the Prospectus included in such Registration Statement, as then in effect, includes a Misstatement,
and then to correct such Misstatement as set forth in Section 3.4 hereof;


 


3.1.10 permit a representative
of the Holders (such representative to be selected by a majority of the participating Holders), the Underwriters, if any, and any attorney
or accountant retained by such Holders or Underwriter to participate, at each such person’s own expense, in the preparation of the
Registration Statement, and cause the Company’s officers, directors and employees to supply all information reasonably requested
by any such representative, Underwriter, attorney or accountant in connection with the Registration; provided, however,
that such representatives or Underwriters enter into a confidentiality agreement, in form and substance reasonably satisfactory to the
Company, prior to the release or disclosure of any such information; and provided further, the Company may not
include the name of any Holder or Underwriter or any information regarding any Holder or Underwriter in any Registration Statement or
Prospectus, any amendment or supplement to such Registration Statement or Prospectus, any document that is to be incorporated by reference
into such Registration Statement or Prospectus, or any response to any comment letter, without the prior written consent of such Holder
or Underwriter and providing each such Holder or Underwriter a reasonable amount of time to review and comment on such applicable document,
which comments the Company shall include unless contrary to applicable law;


 


3.1.11 obtain a “cold
comfort” letter from the Company’s independent registered public accountants in the event of an Underwritten Registration
which the participating Holders may rely on, in customary form and covering such matters of the type customarily covered by “cold
comfort” letters as the managing Underwriter may reasonably request, and reasonably satisfactory to a majority-in-interest of the
participating Holders;


 


3.1.12 on the date the Registrable
Securities are delivered for sale pursuant to such Registration, obtain an opinion, dated such date, of counsel representing the Company
for the purposes of such Registration, addressed to the Holders, the placement agent or sales agent, if any, and the Underwriters, if
any, covering such legal matters with respect to the Registration in respect of which such opinion is being given as the Holders, placement
agent, sales agent, or Underwriter may reasonably request and as are customarily included in such opinions and negative assurance letters,
and reasonably satisfactory to a majority in interest of the participating Holders;


 


3.1.13 in the event of any
Underwritten Offering, enter into and perform its obligations under an underwriting agreement, in usual and customary form, with the managing
Underwriter of such offering;


 


3.1.14 make available to
its security holders, as soon as reasonably practicable, an earnings statement covering the period of at least twelve (12) months beginning
with the first day of the Company’s first full calendar quarter after the effective date of the Registration Statement which satisfies
the provisions of Section 11(a) of the Securities Act and Rule 158 thereunder (or any successor rule promulgated thereafter
by the Commission);


 


3.1.15 if the Registration
involves the Registration of Registrable Securities involving gross proceeds in excess of $50,000,000, use its reasonable efforts to make
available senior executives of the Company to participate in customary “road show” presentations that may be reasonably requested
by the Underwriter in any Underwritten Offering; and


 


3.1.16 otherwise, in good
faith, cooperate reasonably with, and take such customary actions as may reasonably be requested by the Holders, in connection with such
Registration.


 


3.2 Registration Expenses.
The Registration Expenses of all Registrations shall be borne by the Company. It is acknowledged by the Holders that the Holders shall
bear all incremental selling expenses relating to the sale of Registrable Securities, such as Underwriters’ commissions and discounts,
brokerage fees, Underwriter marketing costs and, other than as set forth in the definition of “Registration Expenses,” all
reasonable fees and expenses of any legal counsel representing the Holders.


 


3.3 Requirements
for Participation in Underwritten Offerings. No person may participate in any Underwritten Offering for equity securities of the
Company pursuant to a Registration initiated by the Company hereunder unless such person (i) agrees to sell such person’s
securities on the basis provided in any underwriting arrangements approved by the Company and (ii) completes and executes all
customary questionnaires, powers of attorney, indemnities, lock-up agreements, underwriting agreements and other customary documents
as may be reasonably required under the terms of such underwriting arrangements.


 






     


     


    

 


3.4 Suspension of
Sales; Adverse Disclosure. Upon receipt of written notice from the Company that a Registration Statement or Prospectus contains a
Misstatement, each of the Holders shall forthwith discontinue disposition of Registrable Securities until it has received copies of a
supplemented or amended Prospectus correcting the Misstatement (it being understood that the Company hereby covenants to prepare and file
such supplement or amendment as soon as practicable after the time of such notice), or until it is advised in writing by the Company that
the use of the Prospectus may be resumed. If the filing, initial effectiveness or continued use of a Registration Statement in respect
of any Registration at any time would require the Company to make an Adverse Disclosure or would require the inclusion in such Registration
Statement of financial statements that are unavailable to the Company for reasons beyond the Company’s control, the Company may,
upon giving prompt written notice of such action to the Holders, delay the filing or initial effectiveness of, or suspend use of, such
Registration Statement for the shortest period of time, but in no event more than thirty (30) days, determined in good faith by the Company
to be necessary for such purpose. In the event the Company exercises its rights under the preceding sentence, the Holders agree to suspend,
immediately upon their receipt of the notice referred to above, their use of the Prospectus relating to any Registration in connection
with any sale or offer to sell Registrable Securities. The Company shall immediately notify the Holders of the expiration of any period
during which it exercised its rights under this Section 3.4.


 


3.5 Reporting Obligations.
As long as any Holder shall own Registrable Securities, the Company, at all times while it shall be a reporting company under the Exchange
Act, covenants to file timely (or obtain extensions in respect thereof and file within the applicable grace period) all reports required
to be filed by the Company after the date hereof pursuant to Sections 13(a) or 15(d) of the Exchange
Act and to promptly furnish the Holders with true and complete copies of all such filings. The Company further covenants that it shall
take such further action as any Holder may reasonably request, all to the extent required from time to time to enable such Holder to sell
shares of the Common Stock held by such Holder without registration under the Securities Act within the limitation of the exemptions provided
by Rule 144 promulgated under the Securities Act (or any successor rule promulgated thereafter by the Commission), including providing
any legal opinions. Upon the request of any Holder, the Company shall deliver to such Holder a written certification of a duly authorized
officer as to whether it has complied with such requirements.


 


ARTICLE IV


INDEMNIFICATION AND CONTRIBUTION


 


4.1 Indemnification.


 


4.1.1 The Company agrees
to indemnify, to the extent permitted by law, each Holder of Registrable Securities, its officers and directors and each person who controls
such Holder (within the meaning of the Securities Act) against all losses, claims, damages, liabilities and expenses (including attorneys’
fees) caused by any untrue or alleged untrue statement of material fact contained in any Registration Statement, Prospectus or preliminary
Prospectus or any amendment thereof or supplement thereto or any omission or alleged omission of a material fact required to be stated
therein or necessary to make the statements therein not misleading, except insofar as the same are caused by or contained in any information
furnished in writing to the Company by such Holder expressly for use therein. The Company shall indemnify the Underwriters, their officers
and directors and each person who controls such Underwriters (within the meaning of the Securities Act) to the same extent as provided
in the foregoing with respect to the indemnification of the Holder.


 


4.1.2 In connection
with any Registration Statement in which a Holder of Registrable Securities is participating, such Holder shall furnish to the
Company in writing such information and affidavits as the Company reasonably requests for use in connection with any such
Registration Statement or Prospectus and, to the extent permitted by law, shall indemnify the Company, its directors and officers
and agents and each person who controls the Company (within the meaning of the Securities Act) against any losses, claims, damages,
liabilities and expenses (including without limitation reasonable attorneys’ fees) resulting from any untrue statement of
material fact contained in the Registration Statement, Prospectus or preliminary Prospectus or any amendment thereof or supplement
thereto or any omission of a material fact required to be stated therein or necessary to make the statements therein not misleading,
but only to the extent that such untrue statement or omission is contained in any information or affidavit so furnished in writing
by such Holder expressly for use therein; provided, however, that the obligation to indemnify shall be
several, not joint and several, among such Holders of Registrable Securities, and the liability of each such Holder of Registrable
Securities shall be in proportion to and limited to the net proceeds received by such Holder from the sale of Registrable Securities
pursuant to such Registration Statement. The Holders of Registrable Securities shall indemnify the Underwriters, their officers,
directors and each person who controls such Underwriters (within the meaning of the Securities Act) to the same extent as provided
in the foregoing with respect to indemnification of the Company.


 






     


     


    

 


4.1.3 Any person entitled
to indemnification herein shall (i) give prompt written notice to the indemnifying party of any claim with respect to which it seeks indemnification
(provided that the failure to give prompt notice shall not impair any person’s right to indemnification hereunder to the extent
such failure has not materially prejudiced the indemnifying party) and (ii) unless in such indemnified party’s reasonable judgment
a conflict of interest between such indemnified and indemnifying parties may exist with respect to such claim, permit such indemnifying
party to assume the defense of such claim with counsel reasonably satisfactory to the indemnified party. If such defense is assumed, the
indemnifying party shall not be subject to any liability for any settlement made by the indemnified party without its consent (but such
consent shall not be unreasonably withheld). An indemnifying party who is not entitled to, or elects not to, assume the defense of a claim
shall not be obligated to pay the fees and expenses of more than one counsel (plus local counsel) for all parties indemnified by such
indemnifying party with respect to such claim, unless in the reasonable judgment of any indemnified party a conflict of interest may exist
between such indemnified party and any other of such indemnified parties with respect to such claim. No indemnifying party shall, without
the consent of the indemnified party, consent to the entry of any judgment or enter into any settlement which cannot be settled in all
respects by the payment of money (and such money is so paid by the indemnifying party pursuant to the terms of such settlement) or which
settlement does not include as an unconditional term thereof the giving by the claimant or plaintiff to such indemnified party of a release
from all liability in respect to such claim or litigation.


 


4.1.4 The indemnification
provided for under this Agreement shall remain in full force and effect regardless of any investigation made by or on behalf of the indemnified
party or any officer, director or controlling person of such indemnified party and shall survive the transfer of securities. The Company
and each Holder of Registrable Securities participating in an offering also agrees to make such provisions as are reasonably requested
by any indemnified party for contribution to such party in the event the Company’s or such Holder’s indemnification is unavailable
for any reason.


 


4.1.5 If the indemnification
provided under Section 4.1 hereof from the indemnifying party is unavailable or insufficient to hold harmless an indemnified
party in respect of any losses, claims, damages, liabilities and expenses referred to herein, then the indemnifying party, in lieu of
indemnifying the indemnified party, shall contribute to the amount paid or payable by the indemnified party as a result of such losses,
claims, damages, liabilities and expenses in such proportion as is appropriate to reflect the relative fault of the indemnifying party
and the indemnified party, as well as any other relevant equitable considerations. The relative fault of the indemnifying party and indemnified
party shall be determined by reference to, among other things, whether any action in question, including any untrue or alleged untrue
statement of a material fact or omission or alleged omission to state a material fact, was made by, or relates to information supplied
by, such indemnifying party or indemnified party, and the indemnifying party’s and indemnified party’s relative intent, knowledge,
access to information and opportunity to correct or prevent such action; provided, however, that the liability
of any Holder under this subsection 4.1.5 shall be limited to the amount of the net proceeds received by such Holder
in such offering giving rise to such liability. The amount paid or payable by a party as a result of the losses or other liabilities referred
to above shall be deemed to include, subject to the limitations set forth in subsections 4.1.1, 4.1.2 and 4.1.3 above,
any legal or other fees, charges or expenses reasonably incurred by such party in connection with any investigation or proceeding. The
parties hereto agree that it would not be just and equitable if contribution pursuant to this subsection 4.1.5 were determined
by pro rata allocation or by any other method of allocation, which does not take account of the equitable considerations referred to in
this subsection 4.1.5. No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of
the Securities Act) shall be entitled to contribution pursuant to this subsection 4.1.5 from any person who was not guilty
of such fraudulent misrepresentation.


 






     


     


    

 


ARTICLE 5


SHAREHOLDER RIGHTS


 


5.1 Subject to the
terms and conditions of this Agreement, at any time and from time to time on or after the date that the Company consummates a Business
Combination and for so long as the Sponsor holds any Registrable Securities:


 


5.1.1 The Sponsor shall
have the right, but not the obligation, to designate three individuals to be appointed or nominated, as the case may be, for election
to the Board (including any successor, each, a “Nominee”) by giving written notice to the Company on or before
the time such information is reasonably requested by the Board or the Nominating Committee of the Board, as applicable, for inclusion
in a proxy statement for a meeting of stockholders provided to the Sponsor.


 


5.1.2 The Company will,
as promptly as practicable, use its best efforts to take all necessary and desirable actions (including, without limitation, calling special
meetings of the Board and the stockholders and recommending, supporting and soliciting proxies) so that there are three Sponsor Nominees
serving on the Board at all times.


 


5.1.3 The Company shall,
to the fullest extent permitted by applicable law, use its best efforts to take all actions necessary to ensure that: (i) each Sponsor
Nominee is included in the Board’s slate of nominees to the stockholders of the Company for each election of Directors; and (ii) each
Sponsor Nominee is included in the proxy statement prepared by management of the Company in connection with soliciting proxies for every
meeting of the stockholders of the Company called with respect to the election of members of the Board, and at every adjournment or postponement
thereof, and on every action or approval by written consent of the stockholders of the Company or the Board with respect to the election
of members of the Board.


 


5.1.4 If a vacancy
occurs because of the death, disability, disqualification, resignation, or removal of a Sponsor Nominee or for any other reason, the Sponsor
shall be entitled to designate such person’s successor, and the Company will, as promptly as practicable following such designation,
use its best efforts to take all necessary and desirable actions, to the fullest extent permitted by law, within its control such that
such vacancy shall be filled with such successor Nominee.


 


5.1.5 If a Nominee
is not elected because of such Nominee’s death, disability, disqualification, withdrawal as a nominee or for any other reason, the
Sponsor shall be entitled to designate promptly another Nominee and the Company will take all necessary and desirable actions within its
control such that the director position for which such Nominee was nominated shall not be filled pending such designation or the size
of the Board shall be increased by one and such vacancy shall be filled with such successor Nominee as promptly as practicable following
such designation.


 


5.1.6 As promptly as
reasonably practicable following the request of any Sponsor Nominee, the Company shall enter into an indemnification agreement with such
Sponsor Nominee, in the form entered into with the other members of the Board. The Company shall pay the reasonable, documented out-of-pocket
expenses incurred by the Sponsor Nominee in connection with his or her services provided to or on behalf of the Company, including attending
meetings or events attended explicitly on behalf of the Company at the Company’s request.


 


5.1.7 The Company shall
(i) purchase directors’ and officers’ liability insurance in an amount determined by the Board to be reasonable and customary
and (ii) for so long as a Sponsor Nominee serves as a Director of the Company, maintain such coverage with respect to such Sponsor
Nominee; provided that upon removal or resignation of such Sponsor Nominee for any reason, the Company shall take all
actions reasonably necessary to extend such directors’ and officers’ liability insurance coverage for a period of not less
than six years from any such event in respect of any act or omission occurring at or prior to such event.


 


5.1.8 For so long as
a Sponsor Nominee serves as a Director of the Company, the Company shall not amend, alter or repeal any right to indemnification or exculpation
covering or benefiting any Director nominated pursuant to this Agreement as and to the extent consistent with applicable law, whether
such right is contained in the Company’s amended and restated certificate of incorporation or its bylaws, or another document (except
to the extent such amendment or alteration permits the Company to provide broader indemnification or exculpation rights on a retroactive
basis than permitted prior thereto).


 






     


     


    

 


5.1.9 Each Sponsor
Nominee may, but does not need to qualify as “independent” pursuant to listing standards of Nasdaq (or such other national
securities exchange upon which the Company’s securities are then listed).


 


5.1.10 Any Sponsor
Nominee will be subject to the Company’s customary due diligence process, including its review of a completed questionnaire and
a background check. Based on the foregoing, the Company may object to any Sponsor Nominee provided (a) it does so in good faith,
and (b) such objection is based upon any of the following: (i) such Sponsor Nominee was convicted in a criminal proceeding or
is a named subject of a pending criminal proceeding (excluding traffic violations and other minor offenses), (ii) such Sponsor Nominee
was the subject of any order, judgment, or decree not subsequently reversed, suspended or vacated of any court of competent jurisdiction,
permanently or temporarily enjoining such proposed director from, or otherwise limiting, the following activities: (A) engaging in
any type of business practice, or (B) engaging in any activity in connection with the purchase or sale of any security or in connection
with any violation of federal or state securities laws, (iii) such Sponsor Nominee was the subject of any order, judgment or decree,
not subsequently reversed, suspended or vacated, of any federal or state authority barring, suspending or otherwise limiting for more
than 60 days the right of such person to engage in any activity described in clause (ii)(B), or to be associated with persons engaged
in such activity, (iv) such proposed Sponsor Nominee was found by a court of competent jurisdiction in a civil action or by the Commission
to have violated any federal or state securities law, and the judgment in such civil action or finding by the Commission has not been
subsequently reversed, suspended or vacated, or (v) such proposed Sponsor Nominee was the subject of, or a party to any federal or
state judicial or administrative order, judgment, decree, or finding, not subsequently reversed, suspended or vacated, relating to a violation
of any federal or state securities laws or regulations. In the event the Board reasonably finds the Sponsor Nominee to be unsuitable based
upon one or more of the foregoing clauses (i) through (v) and reasonably objects to the identified Sponsor Nominee, Sponsor shall
be entitled to propose a different Sponsor Nominee to the Board within 30 calendar days of the Company’s notice to Sponsor of its
objection to the Sponsor Nominee and such replacement Sponsor Nominee shall be subject to the review process outlined above.


 


5.1.11 The Company
shall take all necessary action to cause a Sponsor Nominee chosen by the Sponsor, at the request of such Sponsor Nominee to be elected
to the board of directors (or similar governing body) of each material operating subsidiary of the Company. The Sponsor Nominee, as applicable,
shall have the right to attend (in person or remotely) any meetings of the board of directors (or similar governing body or committee
thereof) of each subsidiary of the Company.


 


ARTICLE VI


MISCELLANEOUS


 


6.1 Notices. Any
notice or communication under this Agreement must be in writing and given by (i) deposit in the United States mail, addressed to the party
to be notified, postage prepaid and registered or certified with return receipt requested, (ii) delivery in person or by courier service
providing evidence of delivery, or (iii) transmission by hand delivery, electronic mail or facsimile. Each notice or communication that
is mailed, delivered, or transmitted in the manner described above shall be deemed sufficiently given, served, sent, and received, in
the case of mailed notices, on the third business day following the date on which it is mailed and, in the case of notices delivered by
courier service, hand delivery, electronic mail or facsimile, at such time as it is delivered to the addressee (with the delivery receipt
or the affidavit of messenger) or at such time as delivery is refused by the addressee upon presentation. Any notice or communication
under this Agreement must be addressed, if to the Company, to: 545 Boylston Street, 8th Floor, Boston, MA 02116, and, if to any Holder,
at such Holder’s address or contact information as set forth in the Company’s books and records. Any party may change its
address for notice at any time and from time to time by written notice to the other parties hereto, and such change of address shall become
effective thirty (30) days after delivery of such notice as provided in this Section 6.1.


 


6.2 Assignment; No
Third Party Beneficiaries.


 


6.2.1 This Agreement and
the rights, duties and obligations of the Company hereunder may not be assigned or delegated by the Company in whole or in part.


 


6.2.2 Prior to the
expiration of the Founder Shares Lock-up Period or the Private Placement Lock-up Period, as the case may be, no Holder may assign or
delegate such Holder’s rights, duties or obligations under this Agreement, in whole or in part, except in connection with a
transfer of Registrable Securities by such Holder to a Permitted Transferee but only if such Permitted Transferee agrees to become
bound by the transfer restrictions set forth in this Agreement.


 






     


     


    

 


6.2.3 This Agreement and
the provisions hereof shall be binding upon and shall inure to the benefit of each of the parties and its successors and the permitted
assigns of the Holders, which shall include Permitted Transferees.


 


5.2.4 This Agreement shall
not confer any rights or benefits on any persons that are not parties hereto, other than as expressly set forth in this Agreement and Section
6.2 hereof.


 


6.2.5 No assignment by any
party hereto of such party’s rights, duties and obligations hereunder shall be binding upon or obligate the Company unless and until
the Company shall have received (i) written notice of such assignment as provided in Section 6.1 hereof and (ii) the
written agreement of the assignee, in a form reasonably satisfactory to the Company, to be bound by the terms and provisions of this Agreement
(which may be accomplished by an addendum or certificate of joinder to this Agreement). Any transfer or assignment made other than as
provided in this Section 6.2 shall be null and void.


 


6.3 Counterparts.
This Agreement may be executed in multiple counterparts (including facsimile or PDF counterparts), each of which shall be deemed an original,
and all of which together shall constitute the same instrument, but only one of which need be produced.


 


6.4 Governing Law;
Venue. NOTWITHSTANDING THE PLACE WHERE THIS AGREEMENT MAY BE EXECUTED BY ANY OF THE PARTIES HERETO, THE PARTIES EXPRESSLY AGREE THAT
(I) THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED UNDER THE LAWS OF THE STATE OF NEW YORK AS APPLIED TO AGREEMENTS AMONG NEW YORK
RESIDENTS ENTERED INTO AND TO BE PERFORMED ENTIRELY WITHIN NEW YORK, WITHOUT REGARD TO THE CONFLICT OF LAW PROVISIONS OF SUCH JURISDICTION
AND (II) THE VENUE FOR ANY ACTION TAKEN WITH RESPECT TO THIS AGREEMENT SHALL BE ANY STATE OR FEDERAL COURT IN NEW YORK COUNTY IN THE STATE
OF NEW YORK.


 


6.5 Amendments and
Modifications. Upon the written consent of the Company and the Holders of at least a majority in interest of the Registrable Securities
at the time in question, compliance with any of the provisions, covenants and conditions set forth in this Agreement may be waived, or
any of such provisions, covenants or conditions may be amended or modified; provided, however, that notwithstanding
the foregoing, any amendment hereto or waiver hereof that adversely affects one Holder, solely in its capacity as a holder of the shares
of capital stock of the Company, in a manner that is materially different from the other Holders (in such capacity) shall require the
consent of the Holder so affected. No course of dealing between any Holder or the Company and any other party hereto or any failure or
delay on the part of a Holder or the Company in exercising any rights or remedies under this Agreement shall operate as a waiver of any
rights or remedies of any Holder or the Company. No single or partial exercise of any rights or remedies under this Agreement by a party
shall operate as a waiver or preclude the exercise of any other rights or remedies hereunder or thereunder by such party.


 


6.6 Other Registration
Rights. The Company represents and warrants that no person, other than a Holder of Registrable Securities, has any right to require
the Company to register any securities of the Company for sale or to include such securities of the Company in any Registration filed
by the Company for the sale of securities for its own account or for the account of any other person. Further, the Company represents
and warrants that this Agreement supersedes any other registration rights agreement, shareholder agreement or agreement with similar terms
and conditions and in the event of a conflict between any such agreement or agreements and this Agreement, the terms of this Agreement
shall prevail.


 


6.7 Term.
This Agreement shall terminate upon the earlier of (i) the tenth anniversary of the date of this Agreement or (ii) the date as of
which (A) all of the Registrable Securities have been sold pursuant to a Registration Statement (but in no event prior to the
applicable period referred to in Section 4(a)(3) of the Securities Act and Rule 174 thereunder (or any successor rule promulgated
thereafter by the Commission)) or (B) the Holders of all Registrable Securities are permitted to sell the Registrable Securities
under Rule 144 (or any similar provision) under the Securities Act without limitation on the amount of securities sold or the manner
of sale. The provisions of Section 3.5 and Article IV shall survive any termination.


 


[Signature Page Follows]


 






     


     


    

 


IN WITNESS WHEREOF,
the undersigned have caused this Agreement to be executed as of the date first written above.


 


	 	COMPANY:
	 	 
	 	MILLSTREET CAPITAL ACQUISITION CORP., a Delaware corporation
	 	   	 
	 	By: 	 
	 	 	Name:  
	 	 	Title:  
	 	 
	 	HOLDER:
	 	 
	 	MILLSTREET CAPITAL ACQUISITION SPONSOR  LLC, a Delaware limited liability company
	 	   	 
	 	By:	 
	 	 	Name: 
	 	 	Title: 
	 	 
	 	HOLDER:
	 	 
	 	SEAPORT GLOBAL SECURITIES LLC, a Delaware limited liability company
	 	   
	 	By:
	 	Name: 
	 	Title: 



 


[Signature Page to Registration and Shareholder
Rights Agreement]