Document:

Exhibit 10.6

 

FORWARD PURCHASE AGREEMENT 

 

This Forward Purchase Agreement (this “Agreement”)
is entered into as of April 6, 2021, by and between CM Life Sciences III Inc., a Delaware corporation (the “Company”),
and Casdin Capital, LLC, a Delaware limited liability company, acting solely in its capacity as investment advisor (in such capacity,
the “Advisor”) to one or more investment funds, clients or accounts (collectively, “Clients”) managed
from time to time by the Advisor.

 

Recitals 

 

WHEREAS, the Company was incorporated for the purpose
of effecting a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination with
one or more businesses (a “Business Combination”);

 

WHEREAS, the Company has filed with the U.S. Securities
and Exchange Commission (the “SEC”) a registration statement on Form S-1 (the “Registration Statement”)
for its initial public offering (“IPO”) of 48,000,000 units (or 55,200,000 units if the underwriters’ over-allotment
option (the “IPO Option”) is exercised in full) (the “Public Units”) at a price of $10.00 per Public
Unit, each Public Unit comprised of one share of the Company’s Class A common stock, par value $0.0001 per share (the “Class A
Shares,” and the Class A Shares included in the Public Units, the “Public Shares”), and one-fifth of
one redeemable warrant, where each whole redeemable warrant is exercisable to purchase one Class A Share at an exercise price of
$11.50 per share (the “Warrants,” and the Warrants included in the Public Units, the “Public Warrants”);

 

WHEREAS, the Company’s sponsor, CMLS Holdings
III LLC, and certain of the Company’s independent director nominees have severally agreed to purchase an aggregate of 7,733,333
warrants (or 8,693,333 warrants if the IPO Option is exercised in full) at a price of $1.50 per warrant in a private placement that will
close simultaneously with the closing of the IPO (the “Private Placement Warrants”);

 

WHEREAS, following the closing of the IPO (the
“IPO Closing”), the Company will seek to identify and consummate a Business Combination;

 

WHEREAS, the parties wish to enter into this Agreement,
pursuant to which, concurrently with the closing of the Company’s initial Business Combination (the “Business Combination
Closing”), the Company shall issue and sell to each Purchaser (as defined below), and each Purchaser shall purchase from the
Company, on a private placement basis, the number of Class A Shares (the “Forward Purchase Shares”) determined pursuant
to Section 1 hereof, subject to the terms and conditions set forth herein;

 

WHEREAS, concurrently with this Agreement, the
Company has entered into an agreement in the form of this Agreement (the “Other Forward Contract”) with Corvex Management
LP, acting solely in its capacity as investment advisor to one or more Clients managed from time to time by such advisor pursuant to which
such advisor may allocate to one or more of such Clients or assign to one or more third parties the obligation to purchase forward purchase
shares (the advisor under the Other Forward Contract together with the Advisor, the “Advisors,” and the purchasers
under the Other Forward Contract together with the Purchasers, the “Forward Contract Parties” and each, a “Forward
Contract Party”) for the purchase of up to an aggregate of 7,500,000 Class A Shares, for a purchase price of $10.00 per share,
upon the Business Combination Closing for an aggregate purchase price of $75,000,000;

 

WHEREAS, proceeds from the IPO and the sale of
the Private Placement Warrants in an aggregate amount equal to the gross proceeds from the IPO will be deposited into a trust account
for the benefit of the holders of the Public Shares (the “Trust Account”), as described in the Registration Statement;
and

 

     

     

    

 

WHEREAS, the amounts available to the Company from
the Trust Account (after giving effect to any redemptions of Public Shares) and any other equity or debt financing obtained by the Company
in connection with the initial Business Combination (the “Available Cash”), together with the proceeds from the sale
of the Forward Purchase Shares, will be used to satisfy the cash requirements of the initial Business Combination, including funding the
purchase price and paying expenses and retaining amounts specified in the definitive agreement for the initial Business Combination (the
“Definitive Agreement”) to be retained for use by the post-initial Business Combination company for working capital
or other purposes (the “Cash Requirements”);

 

NOW, THEREFORE, in consideration of the premises,
representations, warranties and the mutual covenants contained in this Agreement, and for other good and valuable consideration, the receipt,
sufficiency and adequacy of which are hereby acknowledged, the parties hereto agree as follows:

 

Agreement 

 

1.
Sale and Purchase.

 

(a) Forward
Purchase Shares.

 

(i) Subject
to Sections 1(a)(ii), (iii), and (iv) hereof, the Company shall issue and sell to the Purchaser or Purchasers, determined
as set forth in Section 1(a)(ii)(B) hereof, and the Purchaser or Purchasers shall purchase from the Company, up to an aggregate
maximum of 7,500,000 Forward Purchase Shares (the “Maximum Shares”), for a purchase price of $10.00 per Forward Purchase
Share (the “Forward Purchase Price”), or up to a maximum of $75,000,000 in the aggregate.

 

(ii) The
number of Forward Purchase Shares to be issued and sold by the Company and purchased by each Purchaser hereunder shall be determined as
follows:

 

(A) As soon as reasonably practicable, but in
no event less than fifteen (15) Business Days prior to the Company’s entry into the Definitive Agreement, the Company shall provide
the Advisor with notice (the “Initial Company Notice”) of the number of Forward Purchase Shares desired to be issued
and sold by the Company pursuant to this Agreement. Such number of Forward Purchase Shares shall be determined by the Company, in its
sole discretion, based on, but not limited to, the Cash Requirements and the Available Cash; provided, however, that such
number shall in no event exceed the Maximum Shares. Following delivery of the Initial Company Notice, the Company shall provide the Advisor
with such other information as the Advisor (or any applicable Transferee pursuant to Section 6(b) hereof) may reasonably request
so that the Advisor may appropriately determine the allocation of the Forward Purchase Shares pursuant to Section 1(a)(ii)(C) hereof.

 

(B) Subject
to Section 1(a)(ii)(C) hereof, within ten (10) Business Days after receipt of the Initial Company Notice, the Advisor shall (i) allocate
to one or more Clients or, in lieu of allocating to a Client, assign to one or more third parties (together with the Clients, the “Purchasers”
and individually, a “Purchaser”), in whole or in part, the obligation to purchase the Forward Purchase Shares set forth
in the Initial Company Notice and (ii) provide the Company with notice (the “Initial Purchaser Notice”) of the identity
of each Purchaser and the number of Forward Purchase Shares it has allocated or assigned to each Purchaser pursuant to this Agreement,
if any, which shall not exceed the Maximum Shares. Upon such allocation or assignment:

 

1. such
Purchaser shall execute a signature page to this Agreement, substantially in the form attached as Exhibit A hereto (a “Purchaser
Joinder”), which shall reflect the number of Forward Purchase Shares to be purchased by such Purchaser and
shall constitute the binding obligation of such Purchaser to purchase such Forward Purchase Shares, subject to the terms and conditions
of this Agreement, and, upon such execution, such Purchaser shall have all the rights and obligations of a Purchaser hereunder
with respect to such Forward Purchase Shares and shall make all of the representations, warranties, covenants and agreements of a Purchaser
hereunder, and references herein to the “Purchaser” shall be deemed to refer to such Purchaser and to its Forward Purchase
Shares; provided, that any representations, warranties, covenants and agreements of such Purchaser and any other Purchaser shall
be several and not joint and shall be made as to such Purchaser or any other Purchaser, as applicable, as to itself only; provided,
further, that notwithstanding anything to the contrary contained herein, to the extent the Company proposes to obtain alternative
financing to fund the initial Business Combination in the form of an offering of New Equity Securities (“Alternative Financing”)
and a Purchaser participates in such Alternative Financing pursuant to Section 5 hereof, the aggregate commitment hereunder shall
be reduced by the amount of such Purchaser’s participation in such Alternative Financing; and

 

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2. upon
a Purchaser’s execution and delivery of a Purchaser Joinder, the number of Forward Purchase Shares to be purchased by such Purchaser
hereunder shall be reflected in Schedule A to this Agreement. For the avoidance of doubt, this Agreement need not be amended and
restated in its entirety, but only Schedule A need be completed by each of the Purchaser and the Company upon the occurrence of
any such allocation of the Forward Purchase Shares.

 

(C) Notwithstanding the foregoing, the Advisor
shall only be obligated to allocate the purchase of some or all of the number of Forward Purchase Shares set forth in the Initial Company
Notice to any Client if and only if: (i) the initial Business Combination is proposed to be consummated with a company engaged in a business
that is within the investment objectives of such Client; and (ii) the initial Business Combination, including the target assets or business,
and the terms of the initial Business Combination, are reasonably acceptable to such Client, as determined by the Advisor in its sole
discretion (it being understood that the Advisor may consider many of the same criteria as the Company will consider, but will also consider
whether the investment is an appropriate investment for such Client, including whether the investment complies with any guidelines, restrictions
or conflicts of interest provisions applicable to such Client), and if not all of the Forward Purchase Shares set forth in the Initial
Company Notice are allocated to Clients, the Advisor may, but shall not be obligated to, assign the obligation to purchase such Forward
Purchase Shares to one or more third parties. The Company acknowledges that this Agreement is neither a commitment nor an obligation of
any Client to purchase any Forward Purchase Shares, unless otherwise expressly agreed in writing by such Client by execution and delivery
of a Purchaser Joinder.

 

(iii) At
least two (2) Business Days before the Business Combination Closing, the Company shall provide each Purchaser with an updated notice
(the “Final Company Notice”) including:

 

(A) its determination
of the number of Forward Purchase Shares that it desires each Purchaser to purchase pursuant to this Agreement;

 

(B) the anticipated
date of the Business Combination Closing; and

 

(C) instructions for
wiring the aggregate Forward Purchase Price for each such Purchaser’s Forward Purchase Shares.

 

(iv) At
least one (1) Business Day before the Business Combination Closing, each Purchaser shall provide the Company with an updated notice
(the “Final Purchaser Notice”) of the number of Forward Purchase Shares it will be obligated to purchase pursuant to
this Agreement, with no further notification or confirmation necessary from the Company, which number shall not be less than the lesser
of (A) the number of Forward Purchase Shares that such Purchaser was obligated to purchase pursuant to such Purchaser’s Purchaser
Joinder and (B) the number of Forward Purchase Shares that the Company desires the Purchaser to purchase as specified in the Final
Company Notice.

 

(v) The
closing of the sale of Forward Purchase Shares (the “Forward Closing”) shall be held on the same date and concurrently
with the Business Combination Closing (such date being referred to as the “Forward Closing Date”). At least one (1) Business
Day prior to the Forward Closing Date, the Purchaser shall deliver to the Company the aggregate Forward Purchase Price for the Forward
Purchase Shares by wire transfer of U.S. dollars in immediately available funds to the account specified by the Company in such notice
to be held in escrow until the Forward Closing. Immediately prior to the Forward Closing on the Forward Closing Date, (i) the aggregate
Forward Purchase Price shall be released from escrow automatically and without further action by the Company or the Purchaser, and (ii) upon
such release, the Company shall issue the Forward Purchase Shares to the Purchaser in book-entry form, free and clear of any liens or
other restrictions whatsoever (other than those arising under state or federal securities laws), registered in the name of the Purchaser
(or its nominee in accordance with its delivery instructions), or to a custodian designated by the Purchaser, as applicable. In the event
the Business Combination Closing does not occur within five (5) Business Days of the date scheduled for closing, the Forward Closing
shall not occur and the Company shall promptly (but not later than one (1) Business Day thereafter) return the aggregate Forward
Purchase Price to the Purchaser. For purposes of this Agreement, “Business Day” means any day, other than a Saturday or a
Sunday, that is neither a legal holiday nor a day on which banking institutions are generally authorized or required by law or regulation
to close in the City of New York, New York.

 

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(b) Legends. Each
register and book entry for the Forward Purchase Shares shall contain a notation, and each certificate (if any) evidencing the
Forward Purchase Shares shall be stamped or otherwise imprinted with a legend, in substantially the following form: 

 

“THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED
UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR THE SECURITIES LAWS OF ANY STATE OR OTHER JURISDICTION, AND MAY NOT BE TRANSFERRED IN
VIOLATION OF SUCH ACT AND LAWS. THE SALE, PLEDGE, HYPOTHECATION, OR TRANSFER OF THE SECURITIES REPRESENTED HEREBY ARE SUBJECT TO THE TERMS
AND CONDITIONS OF A CERTAIN FORWARD PURCHASE AGREEMENT BY AND BETWEEN THE HOLDER AND THE COMPANY. COPIES OF SUCH AGREEMENT MAY BE OBTAINED
UPON WRITTEN REQUEST TO THE SECRETARY OF THE COMPANY.”

 

2. Representations
and Warranties of the Advisor. The Advisor represents and warrants to the Company as follows, as of the date hereof:

 

(a) Organization
and Power. The Advisor is duly organized, validly existing, and in good standing under the laws of the jurisdiction of its formation
and has all requisite power and authority to carry on its business as presently conducted and as proposed to be conducted.

 

(b) Authorization.
The Advisor has full power and authority to enter into this Agreement.

 

(c) Compliance
with Other Instruments. The execution, delivery and performance by the Advisor of this Agreement will not result in any violation
or default (i) of any provisions of its organizational documents, (ii) of any instrument, judgment, order, writ or decree to which it
is a party or by which it is bound, (iii) under any note, indenture or mortgage to which it is a party or by which it is bound, (iv) under
any lease, agreement, contract or purchase order to which it is a party or by which it is bound or (v) of any provision of federal or
state statute, rule or regulation applicable to the Advisor, in each case (other than clause (i)), which would have a material adverse
effect on the Advisor.

 

3. Representations
and Warranties of the Purchaser.

 

Each Purchaser that executes and delivers a Purchaser Joinder represents
and warrants to the Company, as of the date of the Purchaser Joinder, as follows:

 

(a) Organization
and Power. The Purchaser is duly organized, validly existing, and in good standing under the laws of the jurisdiction of its formation
and has all requisite power and authority to carry on its business as presently conducted and as proposed to be conducted.

 

(b) Authorization.
The Purchaser has full power and authority to enter into this Agreement. This Agreement, when executed and delivered by the Purchaser,
will constitute the valid and legally binding obligation of the Purchaser, enforceable against the Purchaser in accordance with its terms,
except (i) as limited by applicable bankruptcy, insolvency, reorganization, moratorium, fraudulent conveyance and any other laws
of general application affecting enforcement of creditors’ rights generally, (ii) as limited by laws relating to the availability
of specific performance, injunctive relief or other equitable remedies, or (iii) to the extent the indemnification provisions contained
in the Registration Rights (as defined below) may be limited by applicable federal or state securities laws.

 

(c) Governmental
Consents and Filings. No consent, approval, order or authorization of, or registration, qualification, designation, declaration or
filing with, any federal, state or local governmental authority is required on the part of the Purchaser in connection with the consummation
of the transactions contemplated by this Agreement.

 

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(d) Compliance
with Other Instruments. The execution, delivery and performance by the Purchaser of this Agreement and the consummation by the Purchaser
of the transactions contemplated by this Agreement will not result in any violation or default (i) of any provisions of its organizational
documents, (ii) of any instrument, judgment, order, writ or decree to which it is a party or by which it is bound, (iii) under
any note, indenture or mortgage to which it is a party or by which it is bound, (iv) under any lease, agreement, contract or purchase
order to which it is a party or by which it is bound or (v) of any provision of federal or state statute, rule or regulation applicable
to the Purchaser, in each case (other than clause (i)), which would have a material adverse effect on the Purchaser or its ability to
consummate the transactions contemplated by this Agreement.

 

(e) Purchase
Entirely for Own Account. This Agreement is made with the Purchaser in reliance upon the Purchaser’s representation to the Company,
which by the Purchaser’s execution of this Agreement, the Purchaser hereby confirms, that the Forward Purchase Shares to be acquired
by the Purchaser will be acquired for investment for the Purchaser’s own account, not as a nominee or agent, and not with a view
to the resale or distribution of any part thereof in violation of any state or federal securities laws, and that the Purchaser has no
present intention of selling, granting any participation in, or otherwise distributing the same in violation of law. By executing this
Agreement, the Purchaser further represents that the Purchaser does not presently have any contract, undertaking, agreement or arrangement
with any Person to sell, transfer or grant participations to such Person or to any third Person, with respect to any of the Forward Purchase
Shares. For purposes of this Agreement, “Person” means an individual, a limited liability company, a partnership, a
joint venture, a corporation, a trust, an unincorporated organization, any other entity or any government or any department or agency
thereof.

 

(f) Disclosure
of Information. The Purchaser has had an opportunity to discuss the Company’s business, management, financial affairs and the
terms and conditions of the offering of the Forward Purchase Shares, as well as the terms of the Company’s proposed IPO, with the
Company’s management.

 

(g) Restricted
Securities. The Purchaser understands that the offer and sale of the Forward Purchase Shares to the Purchaser has not been, and will
not be, registered under the Securities Act of 1933, as amended (the “Securities Act”), by reason of a specific exemption
from the registration provisions of the Securities Act which depends upon, among other things, the bona fide nature of the investment
intent and the accuracy of the Purchaser’s representations as expressed herein. The Purchaser understands that the Forward Purchase
Shares are “restricted securities” under applicable U.S. federal and state securities laws and that, pursuant to these laws,
the Purchaser must hold the Forward Purchase Shares indefinitely unless they are registered with the SEC and qualified by state authorities,
or an exemption from such registration and qualification requirements is available. The Purchaser acknowledges that the Company has no
obligation to register or qualify the Forward Purchase Shares, or any Class A Shares into which the Forward Purchase Shares may be
converted or exercised, for resale, except for the Registration Rights. The Purchaser further acknowledges that if an exemption from registration
or qualification is available, it may be conditioned on various requirements including, but not limited to, the time and manner of sale,
the holding period for the Forward Purchase Shares, and on requirements relating to the Company which are outside of the Purchaser’s
control, and which the Company is under no obligation and may not be able to satisfy. The Purchaser acknowledges that the Company filed
the Registration Statement for its proposed IPO. The Purchaser understands that the offering of the Forward Purchase Shares is not, and
is not intended to be, part of the IPO, and that the Purchaser will not be able to rely on the protection of Section 11 of the Securities
Act with respect to the Forward Purchase Shares.

 

(h) No
Public Market. The Purchaser understands that no public market now exists for the Forward Purchase Shares, and that the Company has
made no assurances that a public market will ever exist for the Forward Purchase Shares.

 

(i) High
Degree of Risk. The Purchaser understands that its agreement to purchase the Forward Purchase Shares involves a high degree of risk
which could cause the Purchaser to lose all or part of its investment.

 

(j) Accredited
Investor. The Purchaser is an accredited investor as defined in Rule 501(a) of Regulation D promulgated under the Securities Act.

 

(k) No
General Solicitation. Neither the Purchaser, nor any of its officers, directors, employees, agents, stockholders or partners has either
directly or indirectly, including, through a broker or finder (i) engaged in any general solicitation, or (ii) published any
advertisement in connection with the offer and sale of the Forward Purchase Shares.

 

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(l) Residence.
The Purchaser’s principal place of business is the office or offices located at the address of the Purchaser set forth on the signature
page hereof.

 

(m) Non-Public
Information. The Purchaser acknowledges its obligations under applicable securities laws with respect to the treatment of non-public
information relating to the Company.

 

(n) Adequacy
of Financing. At the time of the Forward Closing, the Purchaser will have available to it sufficient funds to satisfy its obligations
under this Agreement.

 

(o) No
Other Representations and Warranties; Non-Reliance. Except for the specific representations and warranties contained in this Section 3
and in any certificate or agreement delivered pursuant hereto, none of the Purchaser nor any person acting on behalf of the Purchaser
nor any of the Purchaser’s affiliates (the “Purchaser Parties”) has made, makes or shall be deemed to make any
other express or implied representation or warranty with respect to the Purchaser and this offering, and the Purchaser Parties disclaim
any such representation or warranty. Except for the specific representations and warranties expressly made by the Company in Section 4
of this Agreement and in any certificate or agreement delivered pursuant hereto, the Purchaser Parties specifically disclaim that they
are relying upon any other representations or warranties that may have been made by the Company, any person on behalf of the Company or
any of the Company’s affiliates (collectively, the “Company Parties”).

 

		4.	Representations and Warranties of the Company. The Company represents and warrants to the Advisor
and the Purchaser as follows: 

 

(a) Incorporation
and Corporate Power. The Company is a corporation duly incorporated and validly existing and in good standing as a corporation under
the laws of the State of Delaware and has all requisite corporate power and authority to carry on its business as presently conducted
and as proposed to be conducted. The Company has no subsidiaries.

 

(b) Capitalization.
On the date hereof, the authorized share capital of the Company consists of:

 

(i) 380,000,000
Class A Shares, none of which are issued and outstanding.

 

(ii) 20,000,000
shares of the Company’s Class B common stock, par value $0.0001 per shares (the “Class B Shares”),
13,800,000 of which are issued and outstanding. All of the outstanding Class B Shares have been duly authorized, are fully paid and
nonassessable and were issued in compliance with all applicable federal and state securities laws.

 

(iii) 1,000,000
preferred shares, none of which are issued and outstanding.

 

(c) Authorization.
All corporate action required to be taken by the Company’s Board of Directors and stockholders in order to authorize the Company
to enter into this Agreement, and to issue the Forward Purchase Shares at the Forward Closing, has been taken or will be taken prior to
the Forward Closing. All action on the part of the stockholders, directors and officers of the Company necessary for the execution and
delivery of this Agreement, the performance of all obligations of the Company under this Agreement to be performed as of the Forward Closing,
and the issuance and delivery of the Forward Purchase Shares has been taken or will be taken prior to the Forward Closing. This Agreement,
when executed and delivered by the Company, shall constitute the valid and legally binding obligation of the Company, enforceable against
the Company in accordance with its terms except (i) as limited by applicable bankruptcy, insolvency, reorganization, moratorium,
fraudulent conveyance, or other laws of general application relating to or affecting the enforcement of creditors’ rights generally,
(ii) as limited by laws relating to the availability of specific performance, injunctive relief, or other equitable remedies, or
(iii) to the extent the indemnification provisions contained in the Registration Rights may be limited by applicable federal or state
securities laws.

 

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(d) Valid
Issuance of Shares. The Forward Purchase Shares, when issued, sold and delivered in accordance with the terms and for the consideration
set forth in this Agreement, will be validly issued, fully paid and nonassessable, and free of all preemptive or similar rights, taxes,
liens, encumbrances and charges with respect to the issue thereof and restrictions on transfer other than restrictions on transfer specified
under this Agreement, applicable state and federal securities laws and liens or encumbrances created by or imposed by the Purchaser. Assuming
the accuracy of the representations of the Purchaser in this Agreement and subject to the filings described in Section 4(e)
below, the Forward Purchase Shares will be issued in compliance with all applicable federal and state securities laws.

 

(e) Governmental
Consents and Filings. Assuming the accuracy of the representations and warranties made by the Purchaser in this Agreement, no consent,
approval, order or authorization of, or registration, qualification, designation, declaration or filing with, any federal, state or local
governmental authority is required on the part of the Company in connection with the consummation of the transactions contemplated by
this Agreement, except for filings pursuant to Regulation D of the Securities Act, and applicable state securities laws, if any, and pursuant
to the Registration Rights.

 

(f) Compliance
with Other Instruments. The execution, delivery and performance of this Agreement and the consummation of the transactions contemplated
by this Agreement will not result in any violation or default (i) of any provisions of the Company’s amended and restated certificate
of incorporation, as it may be amended from time to time (the “Charter”), bylaws or other governing documents of the
Company, (ii) of any instrument, judgment, order, writ or decree to which the Company is a party or by which it is bound, (iii) under
any note, indenture or mortgage to which the Company is a party or by which it is bound, (iv) under any lease, agreement, contract
or purchase order to which the Company is a party or by which it is bound or (v) of any provision of federal or state statute, rule
or regulation applicable to the Company, in each case (other than clause (i)) which would have a material adverse effect on the Company
or its ability to consummate the transactions contemplated by this Agreement.

 

(g) Operations.
As of the date hereof, the Company has not conducted, and prior to the IPO Closing the Company will not conduct, any operations other
than organizational activities and activities in connection with offerings of its securities.

 

(h) No
General Solicitation. Neither the Company, nor any of its officers, directors, employees, agents or stockholders has either directly
or indirectly, including, through a broker or finder (i) engaged in any general solicitation, or (ii) published any advertisement
in connection with the offer and sale of the Forward Purchase Shares.

 

(i) No
Other Representations and Warranties; Non-Reliance. Except for the specific representations and warranties contained in this Section 4
and in any certificate or agreement delivered pursuant hereto, none of the Company Parties has made, makes or shall be deemed to make
any other express or implied representation or warranty with respect to the Company, this offering, the proposed IPO or a potential Business
Combination, and the Company Parties disclaim any such representation or warranty. Except for the specific representations and warranties
expressly made by the Advisor in Section 2 of the Agreement and by the Purchaser in Section 3 of this Agreement and
in any certificate or agreement delivered pursuant hereto, the Company Parties specifically disclaim that they are relying upon any other
representations or warranties that may have been made by the Purchaser Parties.

 

5. Right
of First Offer. Subject to the terms and conditions of this Section 5, if, in connection with
or prior to the Business Combination Closing, the Company proposes to issue any equity securities, or securities convertible into, exchangeable
or exercisable for equity securities, other than the Public Units (and their component Public Shares and Public Warrants) and the Excluded
Securities (as defined below) (“New Equity Securities”), or offer or seek commitments for any New Equity Securities
to backstop any such capital raise, the Company shall first make an offer of the New Equity Securities to the Advisors on behalf of their
respective Clients or other Purchasers in accordance with the following provisions of this Section 5:

 

(a) Offer
Notice.

 

(i) The
Company shall give written notice (the “Offering Notice”) to the Advisors stating its bona fide intention to offer
the New Equity Securities and specifying the number of New Equity Securities and the material terms and conditions, including the price,
pursuant to which the Company proposes to offer the New Equity Securities and the applicable pro rata share of such New
Equity Securities offered to each of the Advisors pursuant to such Offering Notice, which shall be 50% of such New Equity Securities. 

 

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(ii) The
Offering Notice shall constitute the Company’s offer to sell the New Equity Securities to Clients managed by the Advisors or other
Purchasers, which offer shall be irrevocable for a period of ten (10) Business Days (the “ROFO Notice Period”).

 

(b) Exercise
of Right of First Offer.

 

(i) Upon
receipt of the Offering Notice, the Advisors shall have until the end of the ROFO Notice Period to accept the Company’s offer to
purchase, in whole or in part, its pro rata share of the New Equity Securities by delivering a written notice (a “ROFO
Notice”) to the Company stating that it accepts, on behalf of one or more specified Clients or other Purchasers, the Company’s
offer to purchase such New Equity Securities on the terms specified in the Offering Notice and in the amounts specified in the ROFO Notice.
Any ROFO Notice signed by the Clients or other Purchasers named therein and so delivered shall be binding upon delivery and irrevocable
by such Clients or other Purchasers.

 

(ii) If
one of the Advisors does not deliver a ROFO Notice during the ROFO Notice Period accepting all of the New Equity Securities offered to
it, it shall be deemed to have waived on behalf of its Clients or other Purchasers all rights to purchase the New Equity Securities offered
pursuant to the Offering Notice under this Section 5 that were not included in the ROFO Notice (the “Waived New Equity
Securities”). Thereafter, to the extent the other Advisor has delivered a ROFO Notice to the Company during the ROFO Notice
Period accepting the Company’s initial offer to purchase all of the New Equity Securities offered to it, the Company shall, within
five (5) Business Days after the expiration of the ROFO Notice Period, give an Offering Notice to such Advisor, informing it that it has
the right to increase the number of New Equity Securities that it accepted pursuant to the initial ROFO Notice by up to the number of
Waived New Equity Securities. Such Advisor shall then have two (2) Business Days (the “Subsequent Offering Period”)
in which to accept such second offer, by giving notice of acceptance (the “Subsequent ROFO Notice”) to the Company
prior to the expiration of the Subsequent Offering Period, as to portion of the Waived New Equity Securities it accepts for purchase on
behalf of one or more specified Clients or other Purchasers.

 

(iii) If
the Subsequent Offer Notice is not delivered to the Company prior to the expiration of the Subsequent Offering Period accepting for purchase
all of the Waived New Equity Securities, the applicable Advisor shall be deemed to have waived on behalf of its Clients and other Purchasers
all rights to purchase such Waived New Equity Securities in such second offer by the Company that it did not accept for purchase. The
Company shall thereafter be free to sell or enter into an agreement to sell the unaccepted portion of such Waived New Equity Securities
to any third party without any further obligation to the Advisors pursuant to this Section 5 within the ninety (90) day period
thereafter (and with respect to an agreement to sell, consummate such sale at any time thereafter) on terms and conditions not more favorable
to the third party than those set forth in any Offering Notice. If the Company does not sell or enter into an agreement to sell the unaccepted
portion of the New Equity Securities within such period, the rights provided hereunder shall be deemed to be revived and the New Equity
Securities shall not be offered to any third party unless first re-offered to the Advisors in accordance with this Section 5.

 

(c) Excluded
Securities. For purposes hereof, the term “Excluded Securities” means Class B Shares (and Class A Shares for which
such Class B Shares are convertible) issued to the Sponsor prior to the IPO, private placement warrants issued by the Company in connection
with the IPO for $1.50 per warrant for an aggregate of $11,600,000 (or $13,040,000 if the underwriters’ over-allotment option is
exercised in full) and which have the same exercise price as the Warrants (“Private Placement Warrants”) issued pursuant
to a private placement agreement by and among the Company and the parties thereto (the “Private Placement Warrant Agreement”),
working capital loans to the Company to finance transaction costs in connection with an intended initial Business Combination to the extent
they may be convertible at the option of the lender into warrants of the post- initial Business Combination entity (“Working
Capital Loans”)), warrants issued upon the conversion of Working Capital Loans, any securities issued by the Company as consideration
to any seller in the initial Business Combination and any Class A Shares issued pursuant to this Agreement or the Other Forward Contract. 

 

    8

     

    

 

(d) Additional
Private Placements. Notwithstanding anything to the contrary contained herein, prior to the IPO, the Company will not issue or agree
to issue any securities (other than Forward Purchase Shares contemplated by this Agreement, the Other Forward Contract, the Private Placement
Warrants and the Public Units) without the Advisors’ prior written consent.

 

6.
Registration Rights; Transfer

 

(a) Registration
Rights. Each Purchaser shall be granted registration rights by the Company with respect to the Forward Purchase Shares pursuant to
the registration rights agreement (the “Registration Rights Agreement”) to be entered into by the Company in connection
with its IPO, a form of which has been filed with the registration statement relating to the Company’s IPO (the “Registration
Rights”). Upon a Purchaser’s entry into a Purchaser Joinder, such Purchaser shall execute a joinder to the Registration
Rights Agreement.

 

(b) Transfer.
This Agreement and all of the Purchaser’s rights and obligations hereunder (including the Purchaser’s obligation to purchase
the Forward Purchase Shares) may be transferred or assigned, at any time and from time to time, in whole or in part, to a Forward Contract
Party or one or more third parties (each such transferee, a “Transferee”). Upon any such assignment:

 

(i) the
applicable Transferee shall execute a signature page to this Agreement, substantially in the form of the Purchaser’s signature page
hereto (the “Transferee Joinder Agreement”), which shall reflect the number of Forward Purchase Shares to be purchased
by such Transferee (the “Transferee Securities”), and, upon such execution, such Transferee shall have all the same
rights and obligations of the Purchaser hereunder with respect to the Transferee Securities, and references herein to the “Purchaser”
shall be deemed to refer to and include any such Transferee with respect to such Transferee and to its Transferee Securities; provided,
that any representations, warranties, covenants and agreements of the Purchaser and any such Transferee shall be several and not joint
and shall be made as to the Purchaser or any such Transferee, as applicable, as to itself only; and

 

(ii) upon
a Transferee’s execution and delivery of a Transferee Joinder Agreement, the number of Forward Purchase Shares to be purchased by
the Purchaser hereunder shall be reduced by the total number of Forward Purchase Shares to be purchased by the applicable Transferee pursuant
to the applicable Transferee Joinder Agreement, which reduction shall be evidenced by the Purchaser and the Company amending Schedule
A and Schedule B to this Agreement to reflect each transfer and updating the “Number of Forward Purchase Shares”
and “Aggregate Purchase Price for Forward Purchase Shares” on the Purchaser’s signature page hereto to reflect such
reduced number of Forward Purchase Shares, and the Purchaser shall be fully and unconditionally released from its obligation to purchase
such Transferee Securities hereunder. For the avoidance of doubt, this Agreement need not be amended and restated in its entirety, but
only Schedule A and Schedule B and the Purchaser’s signature page hereto need be so amended and updated and executed
by each of the Purchaser and the Company upon the occurrence of any such transfer of Transferee Securities.

 

7.
Additional Agreements, Acknowledgements and Waivers of the Purchaser.

 

(a) Lock-up;
Transfer Restrictions. The Purchaser agrees that it shall not Transfer any Forward Purchase Shares until 30 days after the completion
of the initial Business Combination. Notwithstanding the foregoing, Transfers of the Forward Purchase Shares are permitted (any such transferees,
the “Permitted Transferees”): (A) to the Company’s officers or directors, any affiliates or family members of
any of the Company’s officers or directors, any members of the Purchaser, or any affiliates of the Purchaser; (B) in the case
of an individual, by gift to a member of the individual’s immediate family, to a trust, the beneficiary of which is a member of
individual’s immediate family or an affiliate of such person, or to a charitable organization; (C) in the case of an individual,
by virtue of laws of descent and distribution upon death of the individual; (D) in the case of an individual, pursuant to a qualified
domestic relations order; (E) by private sales or transfers made in connection with the consummation of a Business Combination at
prices no greater than the price at which the securities were originally purchased; (F) in the event of the Company’s liquidation
prior to the completion of a Business Combination; (G) in the event of the Company’s liquidation, merger, capital stock exchange,
reorganization or other similar transaction which results in all of the Company’s stockholders having the right to exchange their
Class A Shares for cash, securities or other property subsequent to the completion of the initial Business Combination; (H) as
a distribution to limited partners, members or stockholders of the Purchaser; (I) to the Purchaser’s affiliates, to any investment
fund or other entity controlled or managed by the Purchaser or any of its affiliates, or to any investment manager or investment advisor
of the Purchaser or an affiliate of any such investment manager or investment advisor; (J) to a nominee or custodian of a person
or entity to whom a disposition or transfer would be permissible under clauses (A) through (I) above; (K) to the Purchaser or
any Transferee hereunder; (L) by virtue of the laws of the Purchaser’s jurisdiction of formation or its organizational documents
upon dissolution of the Purchaser; and (M) pursuant to an order of a court or regulatory agency; provided, however,
that in the case of clauses (A) through (E) and (H) through (L), these Permitted Transferees must enter into a written agreement
agreeing to be bound by these transfer restrictions. “Transfer” shall mean the (x) sale or assignment of, offer
to sell, contract or agreement to sell, hypothecation, pledge, grant of any option to purchase or otherwise dispose of or agreement to
dispose of, directly or indirectly, or establishment or increase of a put equivalent position or liquidation with respect to or decrease
of a call equivalent position (within the meaning of Section 16 of the Exchange Act, and the rules and regulations of the SEC promulgated
thereunder) with respect to, any of the Forward Purchase Shares (excluding any pledges in the ordinary course of business for bona fide
financing purposes or as part of prime brokerage arrangements), (y) entry into any swap or other arrangement that transfers to another,
in whole or in part, any of the economic consequences of ownership of any of the Forward Purchase Shares, whether any such transaction
is to be settled by delivery of such Forward Purchase Shares, in cash or otherwise, or (z) public announcement of any intention to
effect any transaction specified in clause (x) or (y).

 

    9

     

    

 

(b) Trust
Account.

 

(i) The
Purchaser hereby acknowledges that it is aware that the Company will establish the Trust Account for the benefit of its public stockholders
upon the IPO Closing. The Purchaser, for itself and its affiliates, hereby agrees that it has no right, title, interest or claim of any
kind in or to any monies held in the Trust Account, or any other asset of the Company as a result of any liquidation of the Company, except
for redemption and liquidation rights, if any, the Purchaser may have in respect of any Public Shares held by it.

 

(ii) The
Purchaser hereby agrees that it shall have no right of set-off or any right, title, interest or claim of any kind (“Claim”)
to, or to any monies in, the Trust Account, and hereby irrevocably waives any Claim to, or to any monies in, the Trust Account that it
may have now or in the future, except for redemption and liquidation rights, if any, the Purchaser may have in respect of any Public Shares
held by it. In the event the Purchaser has any Claim against the Company under this Agreement, the Purchaser shall pursue such Claim solely
against the Company and its assets outside the Trust Account and not against the property or any monies in the Trust Account, except for
redemption and liquidation rights, if any, the Purchaser may have in respect of any Public Shares held by it.

 

8. Nasdaq
Listing. The Company will use commercially reasonable efforts to effect the listing of the Units, Class A
Shares and Public Warrants on The Nasdaq Capital Market (“Nasdaq”) (or another national securities exchange) at the
time of the Business Combination Closing.

 

9.
Forward Closing Conditions.

 

(a) Assuming
such Purchaser has signed a Purchaser Joinder, the obligation of the Purchaser to purchase the Forward Purchase Shares at the Forward
Closing under this Agreement shall be subject to the fulfillment, at or prior to the Forward Closing of each of the following conditions,
any of which, to the extent permitted by applicable laws, may be waived by the Purchaser:

 

(i) The
initial Business Combination shall be consummated concurrently with the purchase of the Forward Purchase Shares;

 

(ii) No
amendment or modification of the terms of the initial Business Combination provided by the Company to the Advisor prior to the execution
by the Purchaser of a Purchaser Joinder shall have occurred that would reasonably be expected to materially and adversely affect the economic
benefits that the Purchaser would reasonably expect to receive under this Agreement without having received Purchaser’s prior written
consent (not to be unreasonably withheld, conditioned or delayed);

 

    10

     

    

 

(iii) The
Company shall have delivered to the Purchaser a certificate evidencing the Company’s good standing as a Delaware corporation;

 

(iv) The
representations and warranties of the Company set forth in Section 4 of this Agreement shall have been true and correct as
of the date hereof and shall be true and correct as of the Forward Closing Date, as applicable, with the same effect as though such representations
and warranties had been made on and as of such date (other than any such representation or warranty that is made by its terms as of a
specified date, which shall be true and correct as of such specified date), except where the failure to be so true and correct would not
have a material adverse effect on the Company or its ability to consummate the transactions contemplated by this Agreement;

 

(v) The
Company shall have performed, satisfied and complied in all material respects with the covenants, agreements and conditions required by
this Agreement to be performed, satisfied or complied with by the Company at or prior to the Forward Closing; and

 

(vi) No
order, writ, judgment, injunction, decree, determination, or award shall have been entered by or with any governmental, regulatory, or
administrative authority or any court, tribunal, or judicial, or arbitral body, and no other legal restraint or prohibition shall be in
effect, preventing the purchase by the Purchaser of the Forward Purchase Shares.

 

(b) The
obligation of the Company to sell the Forward Purchase Shares at the Forward Closing under this Agreement shall be subject to the fulfillment,
at or prior to the Forward Closing of each of the following conditions, any of which, to the extent permitted by applicable laws, may
be waived by the Company:

 

(i) The
initial Business Combination shall be consummated concurrently with the purchase of Forward Purchase Shares;

 

(ii) The
representations and warranties of the Purchaser set forth in Section 3 of this Agreement shall have been true and correct
as of the date hereof and shall be true and correct as of the Forward Closing Date, as applicable, with the same effect as though such
representations and warranties had been made on and as of such date (other than any such representation or warranty that is made by its
terms as of a specified date, which shall be true and correct as of such specified date), except where the failure to be so true and correct
would not have a material adverse effect on the Purchaser or its ability to consummate the transactions contemplated by this Agreement;

 

(iii) The
Purchaser shall have performed, satisfied and complied in all material respects with the covenants, agreements and conditions required
by this Agreement to be performed, satisfied or complied with by the Purchaser at or prior to the Forward Closing; and

 

(iv) No
order, writ, judgment, injunction, decree, determination, or award shall have been entered by or with any governmental, regulatory, or
administrative authority or any court, tribunal, or judicial, or arbitral body, and no other legal restraint or prohibition shall be in
effect, preventing the purchase by the Purchaser of the Forward Purchase Shares.

 

 

10.
Termination. This Agreement may be terminated at any time prior to the Forward Closing:

 

(a) by
mutual written consent of the Company and the Purchaser;

 

(b) automatically

 

(i) if the
IPO is not consummated on or prior to twelve months from the date of this Agreement; or

 

(ii) if
a Business Combination is not consummated within 24 months from the closing of the IPO, or such later date as may be approved by the Company’s
stockholders.

 

    11

     

    

 

In the event of any termination of this Agreement pursuant to this
Section 10, the Forward Purchase Price (and interest thereon, if any), if previously paid with respect to any Forward Purchase
Shares, and all Purchaser’s funds paid in connection herewith shall be promptly returned to the Purchaser, and thereafter this Agreement
shall forthwith become null and void and have no effect, without any liability on the part of the Purchaser or the Company and their respective
directors, officers, employees, partners, managers, members, or stockholders and all rights and obligations of each party shall cease;
provided, however, that nothing contained in this Section 10 shall relieve either party from liabilities or
damages arising out of any fraud or willful breach by such party of any of its representations, warranties, covenants or agreements contained
in this Agreement.

 

11.
General Provisions.

 

(a) Notices.
All notices and other communications given or made pursuant to this Agreement shall be in writing and shall be deemed effectively given
upon the earlier of actual receipt, or (i) personal delivery to the party to be notified, (ii) when sent, if sent by electronic
mail or facsimile (if any) during normal business hours of the recipient, and if not sent during normal business hours, then on the recipient’s
next Business Day, (iii) five (5) Business Days after having been sent by registered or certified mail, return receipt requested,
postage prepaid, or (iv) one (1) Business Day after deposit with a nationally recognized overnight courier, freight prepaid, specifying
next Business Day delivery, with written verification of receipt. All communications sent to the Company shall be sent to: CM Life Sciences
III Inc., c/o Corvex Capital Management, 667 Madison Avenue, New York, New York 10065, Attn: Brian Emes, Chief Financial Officer, email:
bemes@corvexcap.com, with a copy to the Company’s counsel at: White & Case LLP, 1221 Avenue of the Americas, New York, New York
10022, Attn: Joel L. Rubinstein, Esq., email: jrubinstein@winston.com.

 

All communications to the Purchaser shall be sent to the Purchaser’s
address as set forth on the signature page hereof, or to such e-mail address, facsimile number (if any) or address as subsequently modified
by written notice given in accordance with this Section 11(a).

 

(b) No
Finder’s Fees. Each party represents that it neither is nor will be obligated for any finder’s fee or commission in connection
with this transaction. The Purchaser agrees to indemnify and to hold harmless the Company from any liability for any commission or compensation
in the nature of a finder’s or broker’s fee arising out of this transaction (and the costs and expenses of defending against
such liability or asserted liability) for which the Purchaser or any of its officers, employees or representatives is responsible. The
Company agrees to indemnify and hold harmless the Purchaser from any liability for any commission or compensation in the nature of a finder’s
or broker’s fee arising out of this transaction (and the costs and expenses of defending against such liability or asserted liability)
for which the Company or any of its officers, employees or representatives is responsible.

 

(c) Survival
of Representations and Warranties. All of the representations and warranties contained herein shall survive the Forward Closing.

 

(d) Entire
Agreement. This Agreement, together with any documents, instruments and writings that are delivered pursuant hereto or referenced
herein, constitutes the entire agreement and understanding of the parties hereto in respect of its subject matter and supersedes all prior
understandings, agreements, or representations by or among the parties hereto, written or oral, to the extent they relate in any way to
the subject matter hereof or the transactions contemplated hereby.

 

(e) Successors.
All of the terms, agreements, covenants, representations, warranties, and conditions of this Agreement are binding upon, and inure to
the benefit of and are enforceable by, the parties hereto and their respective successors. Nothing in this Agreement, express or implied,
is intended to confer upon any party other than the parties hereto or their respective successors and assigns any rights, remedies, obligations
or liabilities under or by reason of this Agreement, except as expressly provided in this Agreement.

 

(f) Assignments.
Except as otherwise specifically provided herein, no party hereto may assign either this Agreement or any of its rights, interests, or
obligations hereunder without the prior written approval of the other party.

 

    12

     

    

 

(g) Counterparts.
This Agreement may be executed in two or more counterparts, each of which will be deemed an original but all of which together will constitute
one and the same instrument.

 

(h) Headings.
The section headings contained in this Agreement are inserted for convenience only and will not affect in any way the meaning or interpretation
of this Agreement.

 

(i) Governing
Law. This Agreement, the entire relationship of the parties hereto, and any dispute between the parties (whether grounded in contract,
tort, statute, law or equity) shall be governed by, construed in accordance with, and interpreted pursuant to the laws of the State of
New York, without giving effect to its choice of laws principles.

 

(j) Jurisdiction.
The parties (i) hereby irrevocably and unconditionally submit to the jurisdiction of the state courts of New York and to the jurisdiction
of the United States District Court for the Southern District of New York for the purpose of any suit, action or other proceeding arising
out of or based upon this Agreement, (ii) agree not to commence any suit, action or other proceeding arising out of or based upon
this Agreement except in state courts of New York or the United States District Court for the Southern District of New York, and (iii) hereby
waive, and agree not to assert, by way of motion, as a defense, or otherwise, in any such suit, action or proceeding, any claim that it
is not subject personally to the jurisdiction of the above-named courts, that its property is exempt or immune from attachment or execution,
that the suit, action or proceeding is brought in an inconvenient forum, that the venue of the suit, action or proceeding is improper
or that this Agreement or the subject matter hereof may not be enforced in or by such court.

 

(k) Waiver
of Jury Trial. The parties hereto hereby waive any right to a jury trial in connection with any litigation pursuant to this Agreement
and the transactions contemplated hereby.

 

(l) Amendments.
This Agreement may not be amended, modified or waived as to any particular provision except with the prior written consent of the Company
and the Purchaser.

 

(m) Severability.
The provisions of this Agreement will be deemed severable and the invalidity or unenforceability of any provision will not affect the
validity or enforceability of the other provisions hereof; provided, that if any provision of this Agreement, as applied to any
party hereto or to any circumstance, is adjudged by a governmental authority, arbitrator, or mediator not to be enforceable in accordance
with its terms, the parties hereto agree that the governmental authority, arbitrator, or mediator making such determination will have
the power to modify the provision in a manner consistent with its objectives such that it is enforceable, and/or to delete specific words
or phrases, and in its reduced form, such provision will then be enforceable and will be enforced.

 

(n) Expenses.
Each of the Company and the Purchaser will bear its own costs and expenses incurred in connection with the preparation, execution and
performance of this Agreement and the consummation of the transactions contemplated hereby, including all fees and expenses of agents,
representatives, financial advisors, legal counsel and accountants. The Company shall be responsible for the fees of its transfer agent;
stamp taxes and all of The Depository Trust Company’s fees associated with the issuance of the Forward Purchase Shares.

 

(o) Construction.
The parties hereto have participated jointly in the negotiation and drafting of this Agreement. If an ambiguity or question of intent
or interpretation arises, this Agreement will be construed as if drafted jointly by the parties hereto and no presumption or burden of
proof will arise favoring or disfavoring any party hereto because of the authorship of any provision of this Agreement. Any reference
to any federal, state, local, or foreign law will be deemed also to refer to law as amended and all rules and regulations promulgated
thereunder, unless the context requires otherwise. The words “include,” “includes,” and “including”
will be deemed to be followed by “without limitation.” Pronouns in masculine, feminine, and neuter genders will be
construed to include any other gender, and words in the singular form will be construed to include the plural and vice versa, unless the
context otherwise requires. The words “this Agreement,” “herein,” “hereof,” “hereby,”
“hereunder,” and words of similar import refer to this Agreement as a whole and not to any particular subdivision unless
expressly so limited. The parties hereto intend that each representation, warranty, and covenant contained herein will have independent
significance. If any party hereto has breached any representation, warranty, or covenant contained herein in any respect, the fact that
there exists another representation, warranty or covenant relating to the same subject matter (regardless of the relative levels of specificity)
which such party hereto has not breached will not detract from or mitigate the fact that such party hereto is in breach of the first representation,
warranty, or covenant.

 

(p) Waiver.
No waiver by any party hereto of any default, misrepresentation, or breach of warranty or covenant hereunder, whether intentional or not,
may be deemed to extend to any prior or subsequent default, misrepresentation, or breach of warranty or covenant hereunder or affect in
any way any rights arising because of any prior or subsequent occurrence.

 

(q) Specific
Performance. The Purchaser agrees that irreparable damage may occur in the event any provision of this Agreement was not performed
by the Purchaser in accordance with the terms hereof and that the Company shall be entitled to specific performance of the terms hereof,
in addition to any other remedy at law or equity.

 

[Signature Page Follows]

 

    13

     

    

 

IN WITNESS WHEREOF, the undersigned have executed this Agreement
to be effective as of the date first set forth above.

 

	ADVISOR:	 
	 	 
	CASDIN CAPITAL, LLC	 
	 	 	 
	By:	/s/ Eli Casdin	 
	Name: 	Eli Casdin	 
	Title:	Chief Executive Officer	 

 

	COMPANY:	 
	 	 
	CM LIFE SCIENCES III INC.	 
	 	 	 
	By:	/s/ Brian Emes	 
	Name: 	Brian Emes	 
	Title:	Chief Financial Officer and Secretary	 

 

[Signature Page to Forward Purchase Agreement]

 

     

     

    

 

EXHIBIT A

 

FORM OF PURCHASER JOINDER

 

	Number of Forward Purchase Shares:	 	 	 
	Aggregate Purchase Price for Forward Purchase Shares:	 	$		 

 

TO BE EXECUTED UPON ANY ALLOCATION AND/OR REVISION IN ACCORDANCE
WITH THIS AGREEMENT TO “NUMBER OF FORWARD PURCHASE SHARES” AND “AGGREGATE PURCHASE PRICE FOR FORWARD PURCHASE SECURITIES”
SET FORTH ABOVE:

 

Number of Forward Purchase Shares and Aggregate Purchase Price for
Forward Purchase Shares as of       , 20[    ],
accepted and agreed to as of this      day of                 ,
20[    ].

 

	 	PURCHASER:
	 	 
	 	[                                                             ]
	 	 
	 	By:	                                                  
	 	Name: 	 
	 	Title:	 
	 	 
	 	Address for Notices:
	 	 
	 	COMPANY:
	 	 
	 	CM LIFE SCIENCES III INC.
	 	 
	 	By:	 
	 	Name:	 
	 	Title:	 

 

     

     

    

 

SCHEDULE A

 

ALLOCATION OF FORWARD PURCHASE SHARES

 

The following allocation of Forward Purchase Shares
has been made:

 

	Purchaser(s)	 	Number of
 Forward
 Purchase
 Shares to be
 Purchased
	 
	 	 			 

 

TO BE EXECUTED UPON ALLOCATION OF FORWARD PURCHASE SECURITIES:

 

Schedule A as of       ,
20[    ], accepted and agreed to as of this      day of       ,
20[    ] by:

 

	 	PURCHASER:
	 	 
	 	[                                                             ]
	 	By:	                                                  
	 	Name: 	 
	 	Title:	 
	 	 
	 	Address for Notices:
	 	 
	 	COMPANY:
	 	 
	 	CM LIFE SCIENCES III INC.
	 	By:	 
	 	Name:	 
	 	Title:	 

 

     

     

    

 

EXHIBIT B

 

FORM OF TRANSFEREE JOINDER

 

TO BE EXECUTED UPON ANY ASSIGNMENT AND/OR REVISION IN ACCORDANCE
WITH THIS AGREEMENT TO “NUMBER OF FORWARD PURCHASE SHARES” AND “AGGREGATE PURCHASE PRICE FOR FORWARD PURCHASE SHARES”
SET FORTH BELOW 

 

	Number of Forward Purchase Shares:	 	 	 
	 	 	 	 
	Aggregate Purchase Price for Forward Purchase Shares:	 	$	            	 

 

Number of Forward Purchase Shares and Aggregate Purchase Price for
Forward Purchase Shares as of       , 202[    ],
accepted and agreed to as of this      day of               ,
202[    ].

 

	 	[                    ]
	 	 	 
	 	By:	            
	 	Name: 	 
	 	Title:	 
	 	 	 
	 	Address for Notices:
	 	 
	 	CM LIFE SCIENCES III INC.
	 	 	 
	 	By:	 
	 	Name:	 
	 	Title:	 

 

     

     

    

 

SCHEDULE B

 

SCHEDULE OF TRANSFERS OF FORWARD PURCHASE SHARES

 

The following transfers of a portion of the original number of Forward
Purchase Shares have been made:

 

	Date of Transfer	 	 	Transferee	 	 	Number of
 Forward Purchase Shares
 Transferred	 	 	Purchaser Revised
 Forward Purchase Shares
 Amount	 
	 	               	 	 	 	               	 	 	 	               	 	 	 	               	 
	 	 	 	 	 	 	 	 	 	 	 	 	 	 	 

 

TO BE EXECUTED UPON ANY ASSIGNMENT OR FINAL
DETERMINATION OF FORWARD PURCHASE SHARES: 

 

Schedule A as of       ,
202[    ], accepted and agreed to as of this      day of               ,
202[    ] by:

 

	[                    ]	 	CM LIFE SCIENCES III INC.
	 	 	 	 	 
	By:	             	 	By:	            
	Name: 	 	 	Name:	 
	Title:	 	 	Title:Exhibit 10.7

 

FORWARD PURCHASE AGREEMENT 

 

This Forward Purchase Agreement (this “Agreement”)
is entered into as of April 6, 2021, by and between CM Life Sciences III Inc., a Delaware corporation (the “Company”),
and Corvex Management LP, a Delaware limited partnership, acting solely in its capacity as investment advisor (in such capacity, the “Advisor”)
to one or more investment funds, clients or accounts (collectively, “Clients”) managed from time to time by the Advisor.

 

Recitals 

 

WHEREAS, the Company was incorporated for the purpose
of effecting a merger, capital stock exchange, asset acquisition, stock purchase, reorganization or similar business combination with
one or more businesses (a “Business Combination”);

 

WHEREAS, the Company has filed with the U.S. Securities
and Exchange Commission (the “SEC”) a registration statement on Form S-1 (the “Registration Statement”)
for its initial public offering (“IPO”) of 48,000,000 units (or 55,200,000 units if the underwriters’ over-allotment
option (the “IPO Option”) is exercised in full) (the “Public Units”) at a price of $10.00 per Public
Unit, each Public Unit comprised of one share of the Company’s Class A common stock, par value $0.0001 per share (the “Class A
Shares,” and the Class A Shares included in the Public Units, the “Public Shares”), and one-fifth of
one redeemable warrant, where each whole redeemable warrant is exercisable to purchase one Class A Share at an exercise price of
$11.50 per share (the “Warrants,” and the Warrants included in the Public Units, the “Public Warrants”);

 

WHEREAS, the Company’s sponsor, CMLS Holdings
III LLC, and certain of the Company’s independent director nominees have severally agreed to purchase an aggregate of 7,733,333
warrants (or 8,693,333 warrants if the IPO Option is exercised in full) at a price of $1.50 per warrant in a private placement that will
close simultaneously with the closing of the IPO (the “Private Placement Warrants”);

 

WHEREAS, following the closing of the IPO (the
“IPO Closing”), the Company will seek to identify and consummate a Business Combination;

 

WHEREAS, the parties wish to enter into this Agreement,
pursuant to which, concurrently with the closing of the Company’s initial Business Combination (the “Business Combination
Closing”), the Company shall issue and sell to each Purchaser (as defined below), and each Purchaser shall purchase from the
Company, on a private placement basis, the number of Class A Shares (the “Forward Purchase Shares”) determined pursuant
to Section 1 hereof, subject to the terms and conditions set forth herein;

 

WHEREAS, concurrently with
this Agreement, the Company has entered into an agreement in the form of this Agreement (the “Other Forward Contract”)
with Casdin Capital, LLC, acting solely in its capacity as investment advisor to one or more Clients managed from time to time by such
advisor pursuant to which such advisor may allocate to one or more of such Clients or assign to one or more third parties the obligation
to purchase forward purchase shares (the advisor under the Other Forward Contract together with the Advisor, the “Advisors,”
and the purchasers under the Other Forward Contract together with the Purchasers, the “Forward Contract Parties” and
each, a “Forward Contract Party”) for the purchase of up to an aggregate of 7,500,000 Class A Shares, for a purchase
price of $10.00 per share, upon the Business Combination Closing for an aggregate purchase price of $75,000,000;

 

WHEREAS, proceeds from the IPO and the sale of
the Private Placement Warrants in an aggregate amount equal to the gross proceeds from the IPO will be deposited into a trust account
for the benefit of the holders of the Public Shares (the “Trust Account”), as described in the Registration Statement;
and

 

WHEREAS, the amounts available to the Company from
the Trust Account (after giving effect to any redemptions of Public Shares) and any other equity or debt financing obtained by the Company
in connection with the initial Business Combination (the “Available Cash”), together with the proceeds from the sale
of the Forward Purchase Shares, will be used to satisfy the cash requirements of the initial Business Combination, including funding the
purchase price and paying expenses and retaining amounts specified in the definitive agreement for the initial Business Combination (the
“Definitive Agreement”) to be retained for use by the post-initial Business Combination company for working capital
or other purposes (the “Cash Requirements”);

 

     

     

    

 

NOW, THEREFORE, in consideration of the premises,
representations, warranties and the mutual covenants contained in this Agreement, and for other good and valuable consideration, the receipt,
sufficiency and adequacy of which are hereby acknowledged, the parties hereto agree as follows:

 

Agreement 

 

1.
Sale and Purchase.

 

(a) Forward
Purchase Shares.

 

(i) Subject
to Sections 1(a)(ii), (iii), and (iv) hereof, the Company shall issue and sell to the Purchaser or Purchasers, determined
as set forth in Section 1(a)(ii)(B) hereof, and the Purchaser or Purchasers shall purchase from the Company, up to an aggregate
maximum of 7,500,000 Forward Purchase Shares (the “Maximum Shares”), for a purchase price of $10.00 per Forward Purchase
Share (the “Forward Purchase Price”), or up to a maximum of $75,000,000 in the aggregate.

 

(ii) The
number of Forward Purchase Shares to be issued and sold by the Company and purchased by each Purchaser hereunder shall be determined as
follows:

 

(A) As soon as reasonably practicable, but in
no event less than fifteen (15) Business Days prior to the Company’s entry into the Definitive Agreement, the Company shall provide
the Advisor with notice (the “Initial Company Notice”) of the number of Forward Purchase Shares desired to be issued
and sold by the Company pursuant to this Agreement. Such number of Forward Purchase Shares shall be determined by the Company, in its
sole discretion, based on, but not limited to, the Cash Requirements and the Available Cash; provided, however, that such
number shall in no event exceed the Maximum Shares. Following delivery of the Initial Company Notice, the Company shall provide the Advisor
with such other information as the Advisor (or any applicable Transferee pursuant to Section 6(b) hereof) may reasonably request
so that the Advisor may appropriately determine the allocation of the Forward Purchase Shares pursuant to Section 1(a)(ii)(C) hereof.

 

(B) Subject
to Section 1(a)(ii)(C) hereof, within ten (10) Business Days after receipt of the Initial Company Notice, the Advisor shall (i) allocate
to one or more Clients or, in lieu of allocating to a Client, assign to one or more third parties (together with the Clients, the “Purchasers”
and individually, a “Purchaser”), in whole or in part, the obligation to purchase the Forward Purchase Shares set forth
in the Initial Company Notice and (ii) provide the Company with notice (the “Initial Purchaser Notice”) of the identity
of each Purchaser and the number of Forward Purchase Shares it has allocated or assigned to each Purchaser pursuant to this Agreement,
if any, which shall not exceed the Maximum Shares. Upon such allocation or assignment:

 

1. such
Purchaser shall execute a signature page to this Agreement, substantially in the form attached as Exhibit A hereto (a “Purchaser
Joinder”), which shall reflect the number of Forward Purchase Shares to be purchased by such Purchaser and
shall constitute the binding obligation of such Purchaser to purchase such Forward Purchase Shares, subject to the terms and conditions
of this Agreement, and, upon such execution, such Purchaser shall have all the rights and obligations of a Purchaser hereunder
with respect to such Forward Purchase Shares and shall make all of the representations, warranties, covenants and agreements of a Purchaser
hereunder, and references herein to the “Purchaser” shall be deemed to refer to such Purchaser and to its Forward Purchase
Shares; provided, that any representations, warranties, covenants and agreements of such Purchaser and any other Purchaser shall
be several and not joint and shall be made as to such Purchaser or any other Purchaser, as applicable, as to itself only; provided,
further, that notwithstanding anything to the contrary contained herein, to the extent the Company proposes to obtain alternative
financing to fund the initial Business Combination in the form of an offering of New Equity Securities (“Alternative Financing”)
and a Purchaser participates in such Alternative Financing pursuant to Section 5 hereof, the aggregate commitment hereunder shall
be reduced by the amount of such Purchaser’s participation in such Alternative Financing; and

 

    2 

     

    

 

2. upon
a Purchaser’s execution and delivery of a Purchaser Joinder, the number of Forward Purchase Shares to be purchased by such Purchaser
hereunder shall be reflected in Schedule A to this Agreement. For the avoidance of doubt, this Agreement need not be amended and
restated in its entirety, but only Schedule A need be completed by each of the Purchaser and the Company upon the occurrence of
any such allocation of the Forward Purchase Shares.

 

(C) Notwithstanding the foregoing, the Advisor
shall only be obligated to allocate the purchase of some or all of the number of Forward Purchase Shares set forth in the Initial Company
Notice to any Client if and only if: (i) the initial Business Combination is proposed to be consummated with a company engaged in a business
that is within the investment objectives of such Client; and (ii) the initial Business Combination, including the target assets or business,
and the terms of the initial Business Combination, are reasonably acceptable to such Client, as determined by the Advisor in its sole
discretion (it being understood that the Advisor may consider many of the same criteria as the Company will consider, but will also consider
whether the investment is an appropriate investment for such Client, including whether the investment complies with any guidelines, restrictions
or conflicts of interest provisions applicable to such Client), and if not all of the Forward Purchase Shares set forth in the Initial
Company Notice are allocated to Clients, the Advisor may, but shall not be obligated to, assign the obligation to purchase such Forward
Purchase Shares to one or more third parties. The Company acknowledges that this Agreement is neither a commitment nor an obligation of
any Client to purchase any Forward Purchase Shares, unless otherwise expressly agreed in writing by such Client by execution and delivery
of a Purchaser Joinder.

 

(iii) At
least two (2) Business Days before the Business Combination Closing, the Company shall provide each Purchaser with an updated notice
(the “Final Company Notice”) including:

 

(A) its determination
of the number of Forward Purchase Shares that it desires each Purchaser to purchase pursuant to this Agreement;

 

(B) the anticipated
date of the Business Combination Closing; and

 

(C) instructions for
wiring the aggregate Forward Purchase Price for each such Purchaser’s Forward Purchase Shares.

 

(iv) At
least one (1) Business Day before the Business Combination Closing, each Purchaser shall provide the Company with an updated notice
(the “Final Purchaser Notice”) of the number of Forward Purchase Shares it will be obligated to purchase pursuant to
this Agreement, with no further notification or confirmation necessary from the Company, which number shall not be less than the lesser
of (A) the number of Forward Purchase Shares that such Purchaser was obligated to purchase pursuant to such Purchaser’s Purchaser
Joinder and (B) the number of Forward Purchase Shares that the Company desires the Purchaser to purchase as specified in the Final
Company Notice.

 

(v) The
closing of the sale of Forward Purchase Shares (the “Forward Closing”) shall be held on the same date and concurrently
with the Business Combination Closing (such date being referred to as the “Forward Closing Date”). At least one (1) Business
Day prior to the Forward Closing Date, the Purchaser shall deliver to the Company the aggregate Forward Purchase Price for the Forward
Purchase Shares by wire transfer of U.S. dollars in immediately available funds to the account specified by the Company in such notice
to be held in escrow until the Forward Closing. Immediately prior to the Forward Closing on the Forward Closing Date, (i) the aggregate
Forward Purchase Price shall be released from escrow automatically and without further action by the Company or the Purchaser, and (ii) upon
such release, the Company shall issue the Forward Purchase Shares to the Purchaser in book-entry form, free and clear of any liens or
other restrictions whatsoever (other than those arising under state or federal securities laws), registered in the name of the Purchaser
(or its nominee in accordance with its delivery instructions), or to a custodian designated by the Purchaser, as applicable. In the event
the Business Combination Closing does not occur within five (5) Business Days of the date scheduled for closing, the Forward Closing
shall not occur and the Company shall promptly (but not later than one (1) Business Day thereafter) return the aggregate Forward
Purchase Price to the Purchaser. For purposes of this Agreement, “Business Day” means any day, other than a Saturday or a
Sunday, that is neither a legal holiday nor a day on which banking institutions are generally authorized or required by law or regulation
to close in the City of New York, New York.

 

    3 

     

    

 

(b) Legends. Each
register and book entry for the Forward Purchase Shares shall contain a notation, and each certificate (if any) evidencing the Forward
Purchase Shares shall be stamped or otherwise imprinted with a legend, in substantially the following form: 

 

“THE SECURITIES REPRESENTED HEREBY HAVE NOT BEEN REGISTERED
UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR THE SECURITIES LAWS OF ANY STATE OR OTHER JURISDICTION, AND MAY NOT BE TRANSFERRED IN
VIOLATION OF SUCH ACT AND LAWS. THE SALE, PLEDGE, HYPOTHECATION, OR TRANSFER OF THE SECURITIES REPRESENTED HEREBY ARE SUBJECT TO THE TERMS
AND CONDITIONS OF A CERTAIN FORWARD PURCHASE AGREEMENT BY AND BETWEEN THE HOLDER AND THE COMPANY. COPIES OF SUCH AGREEMENT MAY BE OBTAINED
UPON WRITTEN REQUEST TO THE SECRETARY OF THE COMPANY.”

 

2.
Representations and Warranties of the Advisor. The
Advisor represents and warrants to the Company as follows, as of the date hereof:

 

(a) Organization
and Power. The Advisor is duly organized, validly existing, and in good standing under the laws of the jurisdiction of its formation
and has all requisite power and authority to carry on its business as presently conducted and as proposed to be conducted.

 

(b) Authorization.
The Advisor has full power and authority to enter into this Agreement.

 

(c) Compliance
with Other Instruments. The execution, delivery and performance by the Advisor of this Agreement will not result in any violation
or default (i) of any provisions of its organizational documents, (ii) of any instrument, judgment, order, writ or decree to which it
is a party or by which it is bound, (iii) under any note, indenture or mortgage to which it is a party or by which it is bound, (iv) under
any lease, agreement, contract or purchase order to which it is a party or by which it is bound or (v) of any provision of federal or
state statute, rule or regulation applicable to the Advisor, in each case (other than clause (i)), which would have a material adverse
effect on the Advisor.

 

3.
Representations and Warranties of the Purchaser. Each
Purchaser that executes and delivers a Purchaser Joinder represents and warrants to the Company, as of the date of the Purchaser Joinder,
as follows:

 

(a) Organization
and Power. The Purchaser is duly organized, validly existing, and in good standing under the laws of the jurisdiction of its formation
and has all requisite power and authority to carry on its business as presently conducted and as proposed to be conducted.

 

(b) Authorization.
The Purchaser has full power and authority to enter into this Agreement. This Agreement, when executed and delivered by the Purchaser,
will constitute the valid and legally binding obligation of the Purchaser, enforceable against the Purchaser in accordance with its terms,
except (i) as limited by applicable bankruptcy, insolvency, reorganization, moratorium, fraudulent conveyance and any other laws
of general application affecting enforcement of creditors’ rights generally, (ii) as limited by laws relating to the availability
of specific performance, injunctive relief or other equitable remedies, or (iii) to the extent the indemnification provisions contained
in the Registration Rights (as defined below) may be limited by applicable federal or state securities laws.

 

(c) Governmental
Consents and Filings. No consent, approval, order or authorization of, or registration, qualification, designation, declaration or
filing with, any federal, state or local governmental authority is required on the part of the Purchaser in connection with the consummation
of the transactions contemplated by this Agreement.

 

    4 

     

    

 

(d) Compliance
with Other Instruments. The execution, delivery and performance by the Purchaser of this Agreement and the consummation by the Purchaser
of the transactions contemplated by this Agreement will not result in any violation or default (i) of any provisions of its organizational
documents, (ii) of any instrument, judgment, order, writ or decree to which it is a party or by which it is bound, (iii) under
any note, indenture or mortgage to which it is a party or by which it is bound, (iv) under any lease, agreement, contract or purchase
order to which it is a party or by which it is bound or (v) of any provision of federal or state statute, rule or regulation applicable
to the Purchaser, in each case (other than clause (i)), which would have a material adverse effect on the Purchaser or its ability to
consummate the transactions contemplated by this Agreement.

 

(e) Purchase
Entirely for Own Account. This Agreement is made with the Purchaser in reliance upon the Purchaser’s representation to the Company,
which by the Purchaser’s execution of this Agreement, the Purchaser hereby confirms, that the Forward Purchase Shares to be acquired
by the Purchaser will be acquired for investment for the Purchaser’s own account, not as a nominee or agent, and not with a view
to the resale or distribution of any part thereof in violation of any state or federal securities laws, and that the Purchaser has no
present intention of selling, granting any participation in, or otherwise distributing the same in violation of law. By executing this
Agreement, the Purchaser further represents that the Purchaser does not presently have any contract, undertaking, agreement or arrangement
with any Person to sell, transfer or grant participations to such Person or to any third Person, with respect to any of the Forward Purchase
Shares. For purposes of this Agreement, “Person” means an individual, a limited liability company, a partnership, a
joint venture, a corporation, a trust, an unincorporated organization, any other entity or any government or any department or agency
thereof.

 

(f) Disclosure
of Information. The Purchaser has had an opportunity to discuss the Company’s business, management, financial affairs and the
terms and conditions of the offering of the Forward Purchase Shares, as well as the terms of the Company’s proposed IPO, with the
Company’s management.

 

(g) Restricted
Securities. The Purchaser understands that the offer and sale of the Forward Purchase Shares to the Purchaser has not been, and will
not be, registered under the Securities Act of 1933, as amended (the “Securities Act”), by reason of a specific exemption
from the registration provisions of the Securities Act which depends upon, among other things, the bona fide nature of the investment
intent and the accuracy of the Purchaser’s representations as expressed herein. The Purchaser understands that the Forward Purchase
Shares are “restricted securities” under applicable U.S. federal and state securities laws and that, pursuant to these laws,
the Purchaser must hold the Forward Purchase Shares indefinitely unless they are registered with the SEC and qualified by state authorities,
or an exemption from such registration and qualification requirements is available. The Purchaser acknowledges that the Company has no
obligation to register or qualify the Forward Purchase Shares, or any Class A Shares into which the Forward Purchase Shares may be
converted or exercised, for resale, except for the Registration Rights. The Purchaser further acknowledges that if an exemption from registration
or qualification is available, it may be conditioned on various requirements including, but not limited to, the time and manner of sale,
the holding period for the Forward Purchase Shares, and on requirements relating to the Company which are outside of the Purchaser’s
control, and which the Company is under no obligation and may not be able to satisfy. The Purchaser acknowledges that the Company filed
the Registration Statement for its proposed IPO. The Purchaser understands that the offering of the Forward Purchase Shares is not, and
is not intended to be, part of the IPO, and that the Purchaser will not be able to rely on the protection of Section 11 of the Securities
Act with respect to the Forward Purchase Shares.

 

(h) No
Public Market. The Purchaser understands that no public market now exists for the Forward Purchase Shares, and that the Company has
made no assurances that a public market will ever exist for the Forward Purchase Shares.

 

(i) High
Degree of Risk. The Purchaser understands that its agreement to purchase the Forward Purchase Shares involves a high degree of risk
which could cause the Purchaser to lose all or part of its investment.

 

(j) Accredited
Investor. The Purchaser is an accredited investor as defined in Rule 501(a) of Regulation D promulgated under the Securities Act.

 

(k) No
General Solicitation. Neither the Purchaser, nor any of its officers, directors, employees, agents, stockholders or partners has either
directly or indirectly, including, through a broker or finder (i) engaged in any general solicitation, or (ii) published any
advertisement in connection with the offer and sale of the Forward Purchase Shares.

 

    5 

     

    

 

(l) Residence.
The Purchaser’s principal place of business is the office or offices located at the address of the Purchaser set forth on the signature
page hereof.

 

(m) Non-Public
Information. The Purchaser acknowledges its obligations under applicable securities laws with respect to the treatment of non-public
information relating to the Company.

 

(n) Adequacy
of Financing. At the time of the Forward Closing, the Purchaser will have available to it sufficient funds to satisfy its obligations
under this Agreement.

 

(o) No
Other Representations and Warranties; Non-Reliance. Except for the specific representations and warranties contained in this Section 3
and in any certificate or agreement delivered pursuant hereto, none of the Purchaser nor any person acting on behalf of the Purchaser
nor any of the Purchaser’s affiliates (the “Purchaser Parties”) has made, makes or shall be deemed to make any
other express or implied representation or warranty with respect to the Purchaser and this offering, and the Purchaser Parties disclaim
any such representation or warranty. Except for the specific representations and warranties expressly made by the Company in Section 4
of this Agreement and in any certificate or agreement delivered pursuant hereto, the Purchaser Parties specifically disclaim that they
are relying upon any other representations or warranties that may have been made by the Company, any person on behalf of the Company or
any of the Company’s affiliates (collectively, the “Company Parties”).

 

4.
Representations and Warranties of the Company. The Company represents and warrants to the Advisor and
the Purchaser as follows:

 

(a) Incorporation
and Corporate Power. The Company is a corporation duly incorporated and validly existing and in good standing as a corporation under
the laws of the State of Delaware and has all requisite corporate power and authority to carry on its business as presently conducted
and as proposed to be conducted. The Company has no subsidiaries.

 

(b) Capitalization.
On the date hereof, the authorized share capital of the Company consists of:

 

(i) 380,000,000
Class A Shares, none of which are issued and outstanding.

 

(ii) 20,000,000
shares of the Company’s Class B common stock, par value $0.0001 per shares (the “Class B Shares”),
13,800,000 of which are issued and outstanding. All of the outstanding Class B Shares have been duly authorized, are fully paid and
nonassessable and were issued in compliance with all applicable federal and state securities laws.

 

(iii) 1,000,000
preferred shares, none of which are issued and outstanding.

 

(c) Authorization.
All corporate action required to be taken by the Company’s Board of Directors and stockholders in order to authorize the Company
to enter into this Agreement, and to issue the Forward Purchase Shares at the Forward Closing, has been taken or will be taken prior to
the Forward Closing. All action on the part of the stockholders, directors and officers of the Company necessary for the execution and
delivery of this Agreement, the performance of all obligations of the Company under this Agreement to be performed as of the Forward Closing,
and the issuance and delivery of the Forward Purchase Shares has been taken or will be taken prior to the Forward Closing. This Agreement,
when executed and delivered by the Company, shall constitute the valid and legally binding obligation of the Company, enforceable against
the Company in accordance with its terms except (i) as limited by applicable bankruptcy, insolvency, reorganization, moratorium,
fraudulent conveyance, or other laws of general application relating to or affecting the enforcement of creditors’ rights generally,
(ii) as limited by laws relating to the availability of specific performance, injunctive relief, or other equitable remedies, or
(iii) to the extent the indemnification provisions contained in the Registration Rights may be limited by applicable federal or state
securities laws.

 

(d) Valid
Issuance of Shares. The Forward Purchase Shares, when issued, sold and delivered in accordance with the terms and for the consideration
set forth in this Agreement, will be validly issued, fully paid and nonassessable, and free of all preemptive or similar rights, taxes,
liens, encumbrances and charges with respect to the issue thereof and restrictions on transfer other than restrictions on transfer specified
under this Agreement, applicable state and federal securities laws and liens or encumbrances created by or imposed by the Purchaser. Assuming
the accuracy of the representations of the Purchaser in this Agreement and subject to the filings described in Section 4(e)
below, the Forward Purchase Shares will be issued in compliance with all applicable federal and state securities laws.

 

    6 

     

    

 

(e) Governmental
Consents and Filings. Assuming the accuracy of the representations and warranties made by the Purchaser in this Agreement, no consent,
approval, order or authorization of, or registration, qualification, designation, declaration or filing with, any federal, state or local
governmental authority is required on the part of the Company in connection with the consummation of the transactions contemplated by
this Agreement, except for filings pursuant to Regulation D of the Securities Act, and applicable state securities laws, if any, and pursuant
to the Registration Rights.

 

(f) Compliance
with Other Instruments. The execution, delivery and performance of this Agreement and the consummation of the transactions contemplated
by this Agreement will not result in any violation or default (i) of any provisions of the Company’s amended and restated certificate
of incorporation, as it may be amended from time to time (the “Charter”), bylaws or other governing documents of the
Company, (ii) of any instrument, judgment, order, writ or decree to which the Company is a party or by which it is bound, (iii) under
any note, indenture or mortgage to which the Company is a party or by which it is bound, (iv) under any lease, agreement, contract
or purchase order to which the Company is a party or by which it is bound or (v) of any provision of federal or state statute, rule
or regulation applicable to the Company, in each case (other than clause (i)) which would have a material adverse effect on the Company
or its ability to consummate the transactions contemplated by this Agreement.

 

(g) Operations.
As of the date hereof, the Company has not conducted, and prior to the IPO Closing the Company will not conduct, any operations other
than organizational activities and activities in connection with offerings of its securities.

 

(h) No
General Solicitation. Neither the Company, nor any of its officers, directors, employees, agents or stockholders has either directly
or indirectly, including, through a broker or finder (i) engaged in any general solicitation, or (ii) published any advertisement
in connection with the offer and sale of the Forward Purchase Shares.

 

(i) No
Other Representations and Warranties; Non-Reliance. Except for the specific representations and warranties contained in this Section 4
and in any certificate or agreement delivered pursuant hereto, none of the Company Parties has made, makes or shall be deemed to make
any other express or implied representation or warranty with respect to the Company, this offering, the proposed IPO or a potential Business
Combination, and the Company Parties disclaim any such representation or warranty. Except for the specific representations and warranties
expressly made by the Advisor in Section 2 of the Agreement and by the Purchaser in Section 3 of this Agreement and
in any certificate or agreement delivered pursuant hereto, the Company Parties specifically disclaim that they are relying upon any other
representations or warranties that may have been made by the Purchaser Parties.

 

5. Right
of First Offer. Subject to the terms and conditions of this Section 5, if, in connection with
or prior to the Business Combination Closing, the Company proposes to issue any equity securities, or securities convertible into, exchangeable
or exercisable for equity securities, other than the Public Units (and their component Public Shares and Public Warrants) and the Excluded
Securities (as defined below) (“New Equity Securities”), or offer or seek commitments for any New Equity Securities
to backstop any such capital raise, the Company shall first make an offer of the New Equity Securities to the Advisors on behalf of their
respective Clients or other Purchasers in accordance with the following provisions of this Section 5:

 

(a) Offer
Notice.

 

(i) The
Company shall give written notice (the “Offering Notice”) to the Advisors stating its bona fide intention to offer
the New Equity Securities and specifying the number of New Equity Securities and the material terms and conditions, including the price,
pursuant to which the Company proposes to offer the New Equity Securities and the applicable pro rata share of such New
Equity Securities offered to each of the Advisors pursuant to such Offering Notice, which shall be 50% of such New Equity Securities. 

 

    7 

     

    

 

(ii) The
Offering Notice shall constitute the Company’s offer to sell the New Equity Securities to Clients managed by the Advisors or other
Purchasers, which offer shall be irrevocable for a period of ten (10) Business Days (the “ROFO Notice Period”).

 

(b) Exercise
of Right of First Offer.

 

(i) Upon
receipt of the Offering Notice, the Advisors shall have until the end of the ROFO Notice Period to accept the Company’s offer to
purchase, in whole or in part, its pro rata share of the New Equity Securities by delivering a written notice (a “ROFO
Notice”) to the Company stating that it accepts, on behalf of one or more specified Clients or other Purchasers, the Company’s
offer to purchase such New Equity Securities on the terms specified in the Offering Notice and in the amounts specified in the ROFO Notice.
Any ROFO Notice signed by the Clients or other Purchasers named therein and so delivered shall be binding upon delivery and irrevocable
by such Clients or other Purchasers.

 

(ii) If
one of the Advisors does not deliver a ROFO Notice during the ROFO Notice Period accepting all of the New Equity Securities offered to
it, it shall be deemed to have waived on behalf of its Clients or other Purchasers all rights to purchase the New Equity Securities offered
pursuant to the Offering Notice under this Section 5 that were not included in the ROFO Notice (the “Waived New Equity
Securities”). Thereafter, to the extent the other Advisor has delivered a ROFO Notice to the Company during the ROFO Notice
Period accepting the Company’s initial offer to purchase all of the New Equity Securities offered to it, the Company shall, within
five (5) Business Days after the expiration of the ROFO Notice Period, give an Offering Notice to such Advisor, informing it that it has
the right to increase the number of New Equity Securities that it accepted pursuant to the initial ROFO Notice by up to the number of
Waived New Equity Securities. Such Advisor shall then have two (2) Business Days (the “Subsequent Offering Period”)
in which to accept such second offer, by giving notice of acceptance (the “Subsequent ROFO Notice”) to the Company
prior to the expiration of the Subsequent Offering Period, as to portion of the Waived New Equity Securities it accepts for purchase on
behalf of one or more specified Clients or other Purchasers.

 

(iii) If
the Subsequent Offer Notice is not delivered to the Company prior to the expiration of the Subsequent Offering Period accepting for purchase
all of the Waived New Equity Securities, the applicable Advisor shall be deemed to have waived on behalf of its Clients and other Purchasers
all rights to purchase such Waived New Equity Securities in such second offer by the Company that it did not accept for purchase. The
Company shall thereafter be free to sell or enter into an agreement to sell the unaccepted portion of such Waived New Equity Securities
to any third party without any further obligation to the Advisors pursuant to this Section 5 within the ninety (90) day period
thereafter (and with respect to an agreement to sell, consummate such sale at any time thereafter) on terms and conditions not more favorable
to the third party than those set forth in any Offering Notice. If the Company does not sell or enter into an agreement to sell the unaccepted
portion of the New Equity Securities within such period, the rights provided hereunder shall be deemed to be revived and the New Equity
Securities shall not be offered to any third party unless first re-offered to the Advisors in accordance with this Section 5.

 

(c) Excluded
Securities. For purposes hereof, the term “Excluded Securities” means Class B Shares (and Class A Shares for which
such Class B Shares are convertible) issued to the Sponsor prior to the IPO, private placement warrants issued by the Company in connection
with the IPO for $1.50 per warrant for an aggregate of $11,600,000 (or $13,040,000 if the underwriters’ over-allotment option is
exercised in full) and which have the same exercise price as the Warrants (“Private Placement Warrants”) issued pursuant
to a private placement agreement by and among the Company and the parties thereto (the “Private Placement Warrant Agreement”),
working capital loans to the Company to finance transaction costs in connection with an intended initial Business Combination to the extent
they may be convertible at the option of the lender into warrants of the post- initial Business Combination entity (“Working
Capital Loans”)), warrants issued upon the conversion of Working Capital Loans, any securities issued by the Company as consideration
to any seller in the initial Business Combination and any Class A Shares issued pursuant to this Agreement or the Other Forward Contract. 

 

    8 

     

    

 

(d) Additional
Private Placements. Notwithstanding anything to the contrary contained herein, prior to the IPO, the Company will not issue or agree
to issue any securities (other than Forward Purchase Shares contemplated by this Agreement, the Other Forward Contract, the Private Placement
Warrants and the Public Units) without the Advisors’ prior written consent.

 

6.
Registration Rights; Transfer

 

(a) Registration
Rights. Each Purchaser shall be granted registration rights by the Company with respect to the Forward Purchase Shares pursuant to
the registration rights agreement (the “Registration Rights Agreement”) to be entered into by the Company in connection
with its IPO, a form of which has been filed with the registration statement relating to the Company’s IPO (the “Registration
Rights”). Upon a Purchaser’s entry into a Purchaser Joinder, such Purchaser shall execute a joinder to the Registration
Rights Agreement.

 

(b) Transfer.
This Agreement and all of the Purchaser’s rights and obligations hereunder (including the Purchaser’s obligation to purchase
the Forward Purchase Shares) may be transferred or assigned, at any time and from time to time, in whole or in part, to a Forward Contract
Party or one or more third parties (each such transferee, a “Transferee”). Upon any such assignment:

 

(i) the
applicable Transferee shall execute a signature page to this Agreement, substantially in the form of the Purchaser’s signature page
hereto (the “Transferee Joinder Agreement”), which shall reflect the number of Forward Purchase Shares to be purchased
by such Transferee (the “Transferee Securities”), and, upon such execution, such Transferee shall have all the same
rights and obligations of the Purchaser hereunder with respect to the Transferee Securities, and references herein to the “Purchaser”
shall be deemed to refer to and include any such Transferee with respect to such Transferee and to its Transferee Securities; provided,
that any representations, warranties, covenants and agreements of the Purchaser and any such Transferee shall be several and not joint
and shall be made as to the Purchaser or any such Transferee, as applicable, as to itself only; and

 

(ii) upon a Transferee’s execution and delivery
of a Transferee Joinder Agreement, the number of Forward Purchase Shares to be purchased by the Purchaser hereunder shall be reduced
by the total number of Forward Purchase Shares to be purchased by the applicable Transferee pursuant to the applicable Transferee Joinder
Agreement, which reduction shall be evidenced by the Purchaser and the Company amending Schedule A and Schedule B to this
Agreement to reflect each transfer and updating the “Number of Forward Purchase Shares” and “Aggregate Purchase Price
for Forward Purchase Shares” on the Purchaser’s signature page hereto to reflect such reduced number of Forward Purchase
Shares, and the Purchaser shall be fully and unconditionally released from its obligation to purchase such Transferee Securities hereunder.
For the avoidance of doubt, this Agreement need not be amended and restated in its entirety, but only Schedule A and Schedule
B and the Purchaser’s signature page hereto need be so amended and updated and executed by each of the Purchaser and the Company
upon the occurrence of any such transfer of Transferee Securities.

 

    9 

     

    

 

7.
Additional Agreements, Acknowledgements and Waivers of the Purchaser.

 

(a) Lock-up; Transfer
Restrictions. The Purchaser agrees that it shall not Transfer any Forward Purchase Shares until 30 days after the completion of
the initial Business Combination. Notwithstanding the foregoing, Transfers of the Forward Purchase Shares are permitted (any such
transferees, the “Permitted Transferees”): (A) to the Company’s officers or directors, any affiliates or
family members of any of the Company’s officers or directors, any members of the Purchaser, or any affiliates of the
Purchaser; (B) in the case of an individual, by gift to a member of the individual’s immediate family, to a trust, the
beneficiary of which is a member of individual’s immediate family or an affiliate of such person, or to a charitable
organization; (C) in the case of an individual, by virtue of laws of descent and distribution upon death of the individual;
(D) in the case of an individual, pursuant to a qualified domestic relations order; (E) by private sales or transfers made
in connection with the consummation of a Business Combination at prices no greater than the price at which the securities were
originally purchased; (F) in the event of the Company’s liquidation prior to the completion of a Business Combination;
(G) in the event of the Company’s liquidation, merger, capital stock exchange, reorganization or other similar
transaction which results in all of the Company’s stockholders having the right to exchange their Class A Shares for
cash, securities or other property subsequent to the completion of the initial Business Combination; (H) as a distribution to
limited partners, members or stockholders of the Purchaser; (I) to the Purchaser’s affiliates, to any investment fund or
other entity controlled or managed by the Purchaser or any of its affiliates, or to any investment manager or investment advisor of
the Purchaser or an affiliate of any such investment manager or investment advisor; (J) to a nominee or custodian of a person
or entity to whom a disposition or transfer would be permissible under clauses (A) through (I) above; (K) to the Purchaser
or any Transferee hereunder; (L) by virtue of the laws of the Purchaser’s jurisdiction of formation or its organizational
documents upon dissolution of the Purchaser; and (M) pursuant to an order of a court or regulatory agency; provided, however,
that in the case of clauses (A) through (E) and (H) through (L), these Permitted Transferees must enter into a written
agreement agreeing to be bound by these transfer restrictions. “Transfer” shall mean the (x) sale or
assignment of, offer to sell, contract or agreement to sell, hypothecation, pledge, grant of any option to purchase or otherwise
dispose of or agreement to dispose of, directly or indirectly, or establishment or increase of a put equivalent position or
liquidation with respect to or decrease of a call equivalent position (within the meaning of Section 16 of the Exchange Act,
and the rules and regulations of the SEC promulgated thereunder) with respect to, any of the Forward Purchase Shares (excluding any
pledges in the ordinary course of business for bona fide financing purposes or as part of prime brokerage arrangements), (y) entry
into any swap or other arrangement that transfers to another, in whole or in part, any of the economic consequences of ownership of
any of the Forward Purchase Shares, whether any such transaction is to be settled by delivery of such Forward Purchase Shares, in
cash or otherwise, or (z) public announcement of any intention to effect any transaction specified in clause (x) or
(y).

 

(b) Trust
Account.

 

(i) The
Purchaser hereby acknowledges that it is aware that the Company will establish the Trust Account for the benefit of its public stockholders
upon the IPO Closing. The Purchaser, for itself and its affiliates, hereby agrees that it has no right, title, interest or claim of any
kind in or to any monies held in the Trust Account, or any other asset of the Company as a result of any liquidation of the Company, except
for redemption and liquidation rights, if any, the Purchaser may have in respect of any Public Shares held by it.

 

(ii) The
Purchaser hereby agrees that it shall have no right of set-off or any right, title, interest or claim of any kind (“Claim”)
to, or to any monies in, the Trust Account, and hereby irrevocably waives any Claim to, or to any monies in, the Trust Account that it
may have now or in the future, except for redemption and liquidation rights, if any, the Purchaser may have in respect of any Public Shares
held by it. In the event the Purchaser has any Claim against the Company under this Agreement, the Purchaser shall pursue such Claim solely
against the Company and its assets outside the Trust Account and not against the property or any monies in the Trust Account, except for
redemption and liquidation rights, if any, the Purchaser may have in respect of any Public Shares held by it.

 

8. Nasdaq
Listing. The Company will use commercially reasonable efforts to effect the listing of the Units, Class A
Shares and Public Warrants on The Nasdaq Capital Market (“Nasdaq”) (or another national securities exchange) at the
time of the Business Combination Closing.

 

9.
Forward Closing Conditions.

 

(a) Assuming
such Purchaser has signed a Purchaser Joinder, the obligation of the Purchaser to purchase the Forward Purchase Shares at the Forward
Closing under this Agreement shall be subject to the fulfillment, at or prior to the Forward Closing of each of the following conditions,
any of which, to the extent permitted by applicable laws, may be waived by the Purchaser:

 

(i) The
initial Business Combination shall be consummated concurrently with the purchase of the Forward Purchase Shares;

 

(ii) No
amendment or modification of the terms of the initial Business Combination provided by the Company to the Advisor prior to the execution
by the Purchaser of a Purchaser Joinder shall have occurred that would reasonably be expected to materially and adversely affect the economic
benefits that the Purchaser would reasonably expect to receive under this Agreement without having received Purchaser’s prior written
consent (not to be unreasonably withheld, conditioned or delayed);

 

    10 

     

    

 

(iii) The
Company shall have delivered to the Purchaser a certificate evidencing the Company’s good standing as a Delaware corporation;

 

(iv) The
representations and warranties of the Company set forth in Section 4 of this Agreement shall have been true and correct as
of the date hereof and shall be true and correct as of the Forward Closing Date, as applicable, with the same effect as though such representations
and warranties had been made on and as of such date (other than any such representation or warranty that is made by its terms as of a
specified date, which shall be true and correct as of such specified date), except where the failure to be so true and correct would not
have a material adverse effect on the Company or its ability to consummate the transactions contemplated by this Agreement;

 

(v) The
Company shall have performed, satisfied and complied in all material respects with the covenants, agreements and conditions required by
this Agreement to be performed, satisfied or complied with by the Company at or prior to the Forward Closing; and

 

(vi) No
order, writ, judgment, injunction, decree, determination, or award shall have been entered by or with any governmental, regulatory, or
administrative authority or any court, tribunal, or judicial, or arbitral body, and no other legal restraint or prohibition shall be in
effect, preventing the purchase by the Purchaser of the Forward Purchase Shares.

 

(b) The
obligation of the Company to sell the Forward Purchase Shares at the Forward Closing under this Agreement shall be subject to the fulfillment,
at or prior to the Forward Closing of each of the following conditions, any of which, to the extent permitted by applicable laws, may
be waived by the Company:

 

(i) The
initial Business Combination shall be consummated concurrently with the purchase of Forward Purchase Shares;

 

(ii) The
representations and warranties of the Purchaser set forth in Section 3 of this Agreement shall have been true and correct
as of the date hereof and shall be true and correct as of the Forward Closing Date, as applicable, with the same effect as though such
representations and warranties had been made on and as of such date (other than any such representation or warranty that is made by its
terms as of a specified date, which shall be true and correct as of such specified date), except where the failure to be so true and correct
would not have a material adverse effect on the Purchaser or its ability to consummate the transactions contemplated by this Agreement;

 

(iii) The
Purchaser shall have performed, satisfied and complied in all material respects with the covenants, agreements and conditions required
by this Agreement to be performed, satisfied or complied with by the Purchaser at or prior to the Forward Closing; and

 

(iv) No
order, writ, judgment, injunction, decree, determination, or award shall have been entered by or with any governmental, regulatory, or
administrative authority or any court, tribunal, or judicial, or arbitral body, and no other legal restraint or prohibition shall be in
effect, preventing the purchase by the Purchaser of the Forward Purchase Shares.

 

10.
Termination. This Agreement may be terminated at any time prior to the Forward Closing:

 

(a) by
mutual written consent of the Company and the Purchaser;

 

(b) automatically

 

(i) if the
IPO is not consummated on or prior to twelve months from the date of this Agreement; or

 

(ii) if
a Business Combination is not consummated within 24 months from the closing of the IPO, or such later date as may be approved by the Company’s
stockholders.

 

    11 

     

    

 

In the event of any termination of this Agreement pursuant to this
Section 10, the Forward Purchase Price (and interest thereon, if any), if previously paid with respect to any Forward Purchase
Shares, and all Purchaser’s funds paid in connection herewith shall be promptly returned to the Purchaser, and thereafter this Agreement
shall forthwith become null and void and have no effect, without any liability on the part of the Purchaser or the Company and their respective
directors, officers, employees, partners, managers, members, or stockholders and all rights and obligations of each party shall cease;
provided, however, that nothing contained in this Section 10 shall relieve either party from liabilities or
damages arising out of any fraud or willful breach by such party of any of its representations, warranties, covenants or agreements contained
in this Agreement.

 

11.
General Provisions.

 

(a) Notices.
All notices and other communications given or made pursuant to this Agreement shall be in writing and shall be deemed effectively given
upon the earlier of actual receipt, or (i) personal delivery to the party to be notified, (ii) when sent, if sent by electronic
mail or facsimile (if any) during normal business hours of the recipient, and if not sent during normal business hours, then on the recipient’s
next Business Day, (iii) five (5) Business Days after having been sent by registered or certified mail, return receipt requested,
postage prepaid, or (iv) one (1) Business Day after deposit with a nationally recognized overnight courier, freight prepaid, specifying
next Business Day delivery, with written verification of receipt. All communications sent to the Company shall be sent to: CM Life Sciences
III Inc., c/o Corvex Capital Management, 667 Madison Avenue, New York, New York 10065, Attn: Brian Emes, Chief Financial Officer, email:
bemes@corvexcap.com, with a copy to the Company’s counsel at: White & Case LLP, 1221 Avenue of the Americas, New York, New York
10022, Attn: Joel L. Rubinstein, Esq., email: jrubinstein@winston.com.

 

All communications to the Purchaser shall be sent to the Purchaser’s
address as set forth on the signature page hereof, or to such e-mail address, facsimile number (if any) or address as subsequently modified
by written notice given in accordance with this Section 11(a).

 

(b) No
Finder’s Fees. Each party represents that it neither is nor will be obligated for any finder’s fee or commission in connection
with this transaction. The Purchaser agrees to indemnify and to hold harmless the Company from any liability for any commission or compensation
in the nature of a finder’s or broker’s fee arising out of this transaction (and the costs and expenses of defending against
such liability or asserted liability) for which the Purchaser or any of its officers, employees or representatives is responsible. The
Company agrees to indemnify and hold harmless the Purchaser from any liability for any commission or compensation in the nature of a finder’s
or broker’s fee arising out of this transaction (and the costs and expenses of defending against such liability or asserted liability)
for which the Company or any of its officers, employees or representatives is responsible.

 

(c) Survival
of Representations and Warranties. All of the representations and warranties contained herein shall survive the Forward Closing.

 

(d) Entire
Agreement. This Agreement, together with any documents, instruments and writings that are delivered pursuant hereto or referenced
herein, constitutes the entire agreement and understanding of the parties hereto in respect of its subject matter and supersedes all prior
understandings, agreements, or representations by or among the parties hereto, written or oral, to the extent they relate in any way to
the subject matter hereof or the transactions contemplated hereby.

 

(e) Successors.
All of the terms, agreements, covenants, representations, warranties, and conditions of this Agreement are binding upon, and inure to
the benefit of and are enforceable by, the parties hereto and their respective successors. Nothing in this Agreement, express or implied,
is intended to confer upon any party other than the parties hereto or their respective successors and assigns any rights, remedies, obligations
or liabilities under or by reason of this Agreement, except as expressly provided in this Agreement.

 

(f) Assignments.
Except as otherwise specifically provided herein, no party hereto may assign either this Agreement or any of its rights, interests, or
obligations hereunder without the prior written approval of the other party.

 

    12 

     

    

 

(g) Counterparts.
This Agreement may be executed in two or more counterparts, each of which will be deemed an original but all of which together will constitute
one and the same instrument.

 

(h) Headings.
The section headings contained in this Agreement are inserted for convenience only and will not affect in any way the meaning or interpretation
of this Agreement.

 

(i) Governing
Law. This Agreement, the entire relationship of the parties hereto, and any dispute between the parties (whether grounded in contract,
tort, statute, law or equity) shall be governed by, construed in accordance with, and interpreted pursuant to the laws of the State of
New York, without giving effect to its choice of laws principles.

 

(j) Jurisdiction.
The parties (i) hereby irrevocably and unconditionally submit to the jurisdiction of the state courts of New York and to the jurisdiction
of the United States District Court for the Southern District of New York for the purpose of any suit, action or other proceeding arising
out of or based upon this Agreement, (ii) agree not to commence any suit, action or other proceeding arising out of or based upon
this Agreement except in state courts of New York or the United States District Court for the Southern District of New York, and (iii) hereby
waive, and agree not to assert, by way of motion, as a defense, or otherwise, in any such suit, action or proceeding, any claim that it
is not subject personally to the jurisdiction of the above-named courts, that its property is exempt or immune from attachment or execution,
that the suit, action or proceeding is brought in an inconvenient forum, that the venue of the suit, action or proceeding is improper
or that this Agreement or the subject matter hereof may not be enforced in or by such court.

 

(k) Waiver
of Jury Trial. The parties hereto hereby waive any right to a jury trial in connection with any litigation pursuant to this Agreement
and the transactions contemplated hereby.

 

(l) Amendments.
This Agreement may not be amended, modified or waived as to any particular provision except with the prior written consent of the Company
and the Purchaser.

 

(m) Severability.
The provisions of this Agreement will be deemed severable and the invalidity or unenforceability of any provision will not affect the
validity or enforceability of the other provisions hereof; provided, that if any provision of this Agreement, as applied to any
party hereto or to any circumstance, is adjudged by a governmental authority, arbitrator, or mediator not to be enforceable in accordance
with its terms, the parties hereto agree that the governmental authority, arbitrator, or mediator making such determination will have
the power to modify the provision in a manner consistent with its objectives such that it is enforceable, and/or to delete specific words
or phrases, and in its reduced form, such provision will then be enforceable and will be enforced.

 

(n) Expenses.
Each of the Company and the Purchaser will bear its own costs and expenses incurred in connection with the preparation, execution and
performance of this Agreement and the consummation of the transactions contemplated hereby, including all fees and expenses of agents,
representatives, financial advisors, legal counsel and accountants. The Company shall be responsible for the fees of its transfer agent;
stamp taxes and all of The Depository Trust Company’s fees associated with the issuance of the Forward Purchase Shares.

 

(o) Construction.
The parties hereto have participated jointly in the negotiation and drafting of this Agreement. If an ambiguity or question of intent
or interpretation arises, this Agreement will be construed as if drafted jointly by the parties hereto and no presumption or burden of
proof will arise favoring or disfavoring any party hereto because of the authorship of any provision of this Agreement. Any reference
to any federal, state, local, or foreign law will be deemed also to refer to law as amended and all rules and regulations promulgated
thereunder, unless the context requires otherwise. The words “include,” “includes,” and “including”
will be deemed to be followed by “without limitation.” Pronouns in masculine, feminine, and neuter genders will be
construed to include any other gender, and words in the singular form will be construed to include the plural and vice versa, unless the
context otherwise requires. The words “this Agreement,” “herein,” “hereof,” “hereby,”
“hereunder,” and words of similar import refer to this Agreement as a whole and not to any particular subdivision unless
expressly so limited. The parties hereto intend that each representation, warranty, and covenant contained herein will have independent
significance. If any party hereto has breached any representation, warranty, or covenant contained herein in any respect, the fact that
there exists another representation, warranty or covenant relating to the same subject matter (regardless of the relative levels of specificity)
which such party hereto has not breached will not detract from or mitigate the fact that such party hereto is in breach of the first representation,
warranty, or covenant.

 

(p) Waiver. No waiver by any party hereto
of any default, misrepresentation, or breach of warranty or covenant hereunder, whether intentional or not, may be deemed to extend to
any prior or subsequent default, misrepresentation, or breach of warranty or covenant hereunder or affect in any way any rights arising
because of any prior or subsequent occurrence.

 

(q) Specific
Performance. The Purchaser agrees that irreparable damage may occur in the event any provision of this Agreement was not performed
by the Purchaser in accordance with the terms hereof and that the Company shall be entitled to specific performance of the terms hereof,
in addition to any other remedy at law or equity.

 

[Signature Page Follows]

 

    13 

     

    

 

IN WITNESS WHEREOF, the undersigned have executed this Agreement
to be effective as of the date first set forth above.

 

	ADVISOR:	 
	 	 
	CORVEX MANAGEMENT LP	 
	 	 	 
	By:	/s/ Keith Meister	 
	Name:	Keith Meister	 
	Title:	Managing Partner	 

 

	COMPANY:	 
	 	 
	CM LIFE SCIENCES III INC.	 
	 	 	 
	By:	/s/ Brian Emes	 
	Name:	Brian Emes	 
	Title:	Chief Financial Officer and Secretary	 

 

[Signature Page to Forward Purchase Agreement]

 

     

     

    

 

EXHIBIT A

 

FORM OF PURCHASER JOINDER

 

	Number of Forward Purchase Shares:	 	 	 
	Aggregate Purchase Price for Forward Purchase Shares:	 	$	 

 

TO BE EXECUTED UPON ANY ALLOCATION AND/OR REVISION IN ACCORDANCE
WITH THIS AGREEMENT TO “NUMBER OF FORWARD PURCHASE SHARES” AND “AGGREGATE PURCHASE PRICE FOR FORWARD PURCHASE SECURITIES”
SET FORTH ABOVE:

 

Number of Forward Purchase Shares and Aggregate Purchase Price for
Forward Purchase Shares as of       , 20[    ],
accepted and agreed to as of this      day of       ,
20[    ].

 

	 	PURCHASER:
	 	 
		[                                                             ]

 

	 	By:	 
	 	Name:	 
	 	Title:	 

 

	 	Address for Notices:

 

	 	COMPANY:
	 	 
	 	CM LIFE SCIENCES III INC.

 

	 	By:	 
	 	Name: 	 
	 	Title:	 

 

     

     

    

 

SCHEDULE A

 

ALLOCATION OF FORWARD PURCHASE SHARES

 

The following allocation of Forward Purchase Shares
has been made:

 

	Purchaser(s)	 	Number of
 Forward
 Purchase
 Shares to be
 Purchased	 
	 	 	 	     	 
		 	 		 

 

TO BE EXECUTED UPON ALLOCATION OF FORWARD PURCHASE SECURITIES:

 

Schedule A as of       ,
20[    ], accepted and agreed to as of this      day of       ,
20[    ] by:

 

	 	PURCHASER:
	 	 
		[                                                             ]

 

	 	By:	 
	 	Name:	 
	 	Title:	 

 

	 	Address for Notices:

 

	 	COMPANY:
	 	 
	 	CM LIFE SCIENCES III INC.

 

	 	By:	 
	 	Name:	 
	 	Title:	 

  

     

     

    

 

EXHIBIT B

 

FORM OF TRANSFEREE JOINDER

 

TO BE EXECUTED UPON ANY ASSIGNMENT AND/OR REVISION IN ACCORDANCE
WITH THIS AGREEMENT TO “NUMBER OF FORWARD PURCHASE SHARES” AND “AGGREGATE PURCHASE PRICE FOR FORWARD PURCHASE SHARES”
SET FORTH BELOW 

 

	Number of Forward Purchase Shares:	 	 	 	 
	 	 	 	 	 
	Aggregate Purchase Price for Forward Purchase Shares:	 	$		 

 

Number of Forward Purchase Shares and Aggregate Purchase Price for
Forward Purchase Shares as of       , 202[    ],
accepted and agreed to as of this      day of       ,
202[    ].

 

	 	[                    ]

 

	 	By:	 
	 	Name: 	 
	 	Title:	 

 

	 	Address for Notices:

 

	 	CM LIFE SCIENCES III INC.

 

	 	By:	 
	 	Name: 	 
	 	Title:	 

 

     

     

    

 

SCHEDULE B

 

SCHEDULE OF TRANSFERS OF FORWARD PURCHASE SHARES

 

The following transfers of a portion of the original number of Forward
Purchase Shares have been made:

 

	Date of Transfer	 	Transferee	 	 	Number of 

Forward Purchase Shares

 Transferred	 	 	Purchaser Revised

 Forward Purchase Shares

 Amount	 
		 	       		 	 	          	            	 	 	                      	                 	 

 

TO BE EXECUTED UPON ANY ASSIGNMENT OR FINAL
DETERMINATION OF FORWARD PURCHASE SHARES: 

 

Schedule A as of       ,
202[    ], accepted and agreed to as of this      day of       ,
202[    ] by:

 

	[                    ]	CM LIFE SCIENCES III INC.

 

	By:	 	 	By:	 
	Name:	 	 	Name:	 
	Title:	 	 	Title:

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