Document:

Exhibit 10.3

 

INVESTMENT MANAGEMENT TRUST AGREEMENT

 

This Investment Management Trust Agreement (this
 “Agreement”) is made effective as of [ ], 2021 by and between Osiris Acquisition Corp., a Delaware corporation (the
 “Company”), and Continental Stock Transfer & Trust Company, a New York corporation (the “Trustee”).

 

WHEREAS, the Company’s registration statement
on Form S-1, File No. 333-254997 (the “Registration Statement”) and prospectus (the “Prospectus”)
for the initial public offering of the Company’s units (the “Units”), each of which consists of one share of
the Company’s Class A common stock, par value $0.0001 per share (the “Common Stock”), and one-half of one redeemable
warrant, each whole warrant entitling the holder thereof to purchase one share of Common Stock (such initial public offering hereinafter
referred to as the “Offering”), has been declared effective as of the date hereof by the U.S. Securities and Exchange
Commission; and

 

WHEREAS, the Company has entered into an Underwriting
Agreement (the “Underwriting Agreement”) with Jefferies LLC (the “Underwriter”); and

 

WHEREAS, as described in the Registration Statement,
an aggregate of $250,000,000 from the net proceeds of the Offering and sale of the Private Placement Warrants (as defined in the Underwriting
Agreement) (or $287,500,000 if the Underwriter’s over-allotment option is exercised in full) will be delivered to the Trustee to
be deposited and held in a segregated trust account located at all times in the United States (the “Trust Account”)
for the benefit of the Company and the holders of the Common Stock included in the Units issued in the Offering as hereinafter provided
(the amount to be delivered to the Trustee (and any interest subsequently earned thereon) is referred to herein as the “Property,”
the stockholders for whose benefit the Trustee shall hold the Property will be referred to as the “Public Stockholders,”
and the Public Stockholders and the Company will be referred to together as the “Beneficiaries”); and

 

WHEREAS, pursuant to the Underwriting Agreement,
a portion of the Property equal to $8,750,000, or $10,062,500 if the Underwriter’s over-allotment option is exercised in full, is
attributable to deferred underwriting discounts and commissions that will be payable by the Company to the Underwriter upon and concurrently
with the consummation of the Business Combination (as defined below) (the “Deferred Discount”); and

 

WHEREAS, the Company and the Trustee desire to enter
into this Agreement to set forth the terms and conditions pursuant to which the Trustee shall hold the Property.

 

NOW THEREFORE, IT IS AGREED:

 

1.                 
Agreements and Covenants of Trustee. The Trustee hereby agrees and covenants to:

 

(a)               Hold
the Property in trust for the Beneficiaries in accordance with the terms of this Agreement in the Trust Account established by the
Trustee in the United States at JPMorgan Chase Bank, N.A. (or at another U.S. – chartered commercial bank with consolidated
assets of $100 billion or more) and at a brokerage institution selected by the Trustee that is reasonably satisfactory to the
Company;

 

     

     

    

 

(b)              
Manage, supervise and administer the Trust Account subject to the terms and conditions set forth herein;

 

(c)              
In a timely manner, upon the written instruction of the Company, invest and reinvest the Property in solely United States government
securities within the meaning of Section 2(a)(16) of the Investment Company Act of 1940, as amended, having a maturity of 185 days
or less, or in money market funds meeting the conditions of paragraphs (d)(1), (d)(2), (d)(3) and (d)(4) of Rule 2a-7 promulgated under
the Investment Company Act of 1940, as amended (or any successor rule), which invest only in direct U.S. government treasury obligations,
as determined by the Company; the Trustee may not invest in any other securities or assets, it being understood that the Trust Account
will earn no interest while account funds are uninvested awaiting the Company’s instructions hereunder and the Trustee may earn
bank credits or other consideration;

 

(d)              
Collect and receive, when due, all interest or other income arising from the Property, which shall become part of the “Property,”
as such term is used herein;

 

(e)              
Promptly notify the Company and the Underwriter of all communications received by the Trustee with respect to any Property requiring
action by the Company;

 

(f)               
Supply any necessary information or documents as may be requested by the Company (or its authorized agents) in connection with
the Company’s preparation of the tax returns relating to assets held in the Trust Account;

 

(g)              
Participate in any plan or proceeding for protecting or enforcing any right or interest arising from the Property if, as and when
instructed by the Company to do so;

 

(h)              
Render to the Company monthly written statements of the activities of, and amounts in, the Trust Account reflecting all receipts
and disbursements of the Trust Account;

 

(i)                Commence
liquidation of the Trust Account only after and promptly after (x) receipt of, and only in accordance with, the terms of a
letter from the Company (“Termination Letter”) in a form substantially similar to that attached hereto as either Exhibit A
or Exhibit B, as applicable, signed on behalf of the Company by its Chief Executive Officer, President, Chief Financial
Officer, Secretary or Chairman of the board of directors of the Company (the “Board”) or other authorized officer
of the Company and, in the case of Exhibit A, acknowledged and agreed to by the Underwriter and complete the liquidation
of the Trust Account and distribute the Property in the Trust Account, including interest earned on the funds held in the Trust
Account (net of amounts withdrawn in accordance with this Agreement and less up to $100,000 of interest that may be released to the
Company to pay dissolution expenses), only as directed in the Termination Letter and the other documents referred to therein, or
(y) upon the date which is the later of (i) 24 months after the closing of the Offering and (ii) such later date as
may be approved by the Company’s stockholders in accordance with the Company’s amended and restated Certificate of
Incorporation, if a Termination Letter has not been received by the Trustee prior to such date, in which case the Trust Account
shall be liquidated in accordance with the procedures set forth in the Termination Letter attached as Exhibit B and the
Property in the Trust Account, including interest earned on the funds held in the Trust Account (net of amounts withdrawn in
accordance with this Agreement and less up to $100,000 of interest that may be released to the Company to pay dissolution expenses)
shall be distributed to the Public Stockholders of record as of such date;

 

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(j)                
Upon written request from the Company, which may be given from time to time in a form substantially similar to that attached hereto
as Exhibit C (a “Tax Payment Withdrawal Instruction”), withdraw from the Trust Account and distribute to
the Company the amount of interest earned on the Property requested by the Company to cover any tax obligation owed by the Company as
a result of assets of the Company or interest or other income earned on the Property, which amount shall be delivered directly to the
Company, the Company shall forward such amount to the relevant taxing authority; provided, however, that to the extent there
is not sufficient cash in the Trust Account to pay such tax obligation, the Trustee shall liquidate such assets held in the Trust Account
as shall be designated by the Company in writing to make such distribution, so long as there is no reduction in the principal amount per
share initially deposited in the Trust account; provided, further, that if the tax to be paid is a franchise tax, the written
request by the Company to make such distribution shall be accompanied by a copy of the franchise tax bill from the relevant taxing authority
for the Company. The written request of the Company referenced above shall constitute presumptive evidence that the Company is entitled
to said funds, and the Trustee shall have no responsibility to look beyond said request;

 

(k)              
[Reserved];

 

(l)                
Upon written request from the Company, which may be given from time to time in a form substantially similar to that attached hereto
as Exhibit D (a “Stockholder Redemption Withdrawal Instruction”), the Trustee shall distribute to the Public
Stockholders on behalf of the Company the amount requested by the Company to be used to redeem shares of Common Stock from Public Stockholders
properly submitted in connection with a stockholder vote to approve an amendment to the Company’s amended and restated Certificate
of Incorporation that would affect the substance or timing of the Company’s obligation to redeem 100% of its public shares of Common
Stock if the Company has not consummated an initial Business Combination within such time as is described in the Company’s amended
and restated Certificate of Incorporation or with respect to any other material provisions relating to stockholders’ rights or pre-initial
Business Combination activity. The written request of the Company referenced above shall constitute presumptive evidence that the Company
is entitled to distribute said funds, and the Trustee shall have no responsibility to look beyond said request; and

 

(m)            
Not make any withdrawals or distributions from the Trust Account other than pursuant to Section 1(i), (j), (k)
or (l) above.

 

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2.                 
 Agreements and Covenants of the Company. The Company hereby agrees and covenants to:

 

(a)              
Give all instructions to the Trustee hereunder in writing, signed by the Company’s Chairman of the Board, President, Chief
Executive Officer, Chief Financial Officer or Secretary. In addition, except with respect to its duties under Sections 1(i), 1(j),
1(k) and 1(l) hereof, the Trustee shall be entitled to rely on, and shall be protected in relying on, any verbal or telephonic advice
or instruction which it, in good faith and with reasonable care, believes to be given by any one of the persons authorized above to give
written instructions, provided that the Company shall promptly confirm such instructions in writing;

 

(b)              
Subject to Section 4 hereof, hold the Trustee harmless and indemnify the Trustee from and against any and all expenses,
including reasonable counsel fees and disbursements, or losses suffered by the Trustee in connection with any action taken by it hereunder
and in connection with any action, suit or other proceeding brought against the Trustee involving any claim, or in connection with any
claim or demand, which arises out of or relates to this Agreement, the services of the Trustee hereunder, or the Property or any interest
earned on the Property, except for expenses and losses resulting from the Trustee’s, or its representatives’, gross negligence,
fraud or willful misconduct. Promptly after the receipt by the Trustee of notice of demand or claim or the commencement of any action,
suit or proceeding, pursuant to which the Trustee intends to seek indemnification under this Section 2(b), it shall notify
the Company in writing of such claim (hereinafter referred to as the “Indemnified Claim”). The Trustee shall have the
right to conduct and manage the defense against such Indemnified Claim; provided that the Trustee shall obtain the consent of the
Company with respect to the selection of counsel; provided, further that the Company may conduct and manage the defense
against any Indemnified Claim if the Trustee does not promptly take reasonable steps to mount such a defense. The Trustee may not agree
to settle any Indemnified Claim without the prior written consent of the Company. The Company may participate in any such action with
its own counsel;

 

(c)              
Pay the Trustee the fees set forth on Schedule A hereto, including an initial set-up fee, annual administration fee,
and transaction processing fee which fees shall be subject to modification by the parties from time to time. It is expressly understood
that the Property shall not be used to pay such fees unless and until the property is distributed to the Company pursuant to Sections 1(i)
hereof. The Company shall pay the Trustee the initial set-up fee and the first annual administration fee at the consummation of the Offering.
The Trustee shall refund to the Company the annual administration fee (on a pro rata basis) with respect to any period after the
liquidation of the Trust Account. The Company shall not be responsible for any other fees or charges of the Trustee except as set forth
in this Section 2(c), Schedule A and as may be provided in Section 2(b) hereof;

 

(d)              
In connection with any vote of the Company’s stockholders regarding a merger, capital stock exchange, asset acquisition,
stock purchase, reorganization or similar business combination involving the Company and one or more businesses (the “Business
Combination”), provide to the Trustee an affidavit or certificate of the inspector of elections for the stockholder meeting
verifying the vote of such stockholders regarding such Business Combination;

 

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(e)              
 Provide the Underwriter with a copy of any Termination Letter(s) and/or any other correspondence that is sent to the Trustee with
respect to any proposed withdrawal from the Trust Account promptly after it issues the same;

 

(f)               
Unless otherwise agreed between the Company and the Underwriter, ensure that any Instruction Letter delivered in connection with
a Termination Letter in the form of Exhibit A expressly provides that the Deferred Discount is paid directly to the accounts
as directed by the Underwriter prior to any transfer of the funds held in the Trust Account to the Company or any other person;

 

(g)              
Instruct the Trustee to make only those distributions that are permitted under this Agreement, and refrain from instructing the
Trustee to make any distributions that are not permitted under this Agreement; and

 

(h)              
Within four (4) business days after the Underwriter exercises the over-allotment option (or any unexercised portion thereof)
or such over-allotment expires, provide the Trustee with a notice in writing of the total amount of the Deferred Discount, which shall
in no event be less than $8,750,000, or $10,062,500 if the Underwriter’s overallotment option is exercised in full.

 

3.                 
Limitations of Liability. The Trustee shall have no responsibility or liability to:

 

(a)              
Imply obligations, perform duties, inquire or otherwise be subject to the provisions of any agreement or document other than this
Agreement and that which is expressly set forth herein;

 

(b)              
Take any action with respect to the Property, other than as directed in Section 1 hereof, and the Trustee shall have
no liability to any third party except for liability arising out of the Trustee’s, or its representatives’, gross negligence,
fraud, or willful misconduct;

 

(c)              
Institute any proceeding for the collection of any principal and income arising from, or institute, appear in or defend any proceeding
of any kind with respect to, any of the Property unless and until it shall have received instructions from the Company given as provided
herein to do so and the Company shall have advanced or guaranteed to it funds sufficient to pay any reasonably incurred expenses incident
thereto;

 

(d)              
Refund any depreciation in principal of any Property;

 

(e)              
Assume that the authority of any person designated by the Company to give instructions hereunder shall not be continuing unless
provided otherwise in such designation, or unless the Company shall have delivered a written revocation of such authority to the Trustee;

 

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(f)                The
other parties hereto or to anyone else for any action taken or omitted by it, or any action suffered by it to be taken or omitted,
in good faith and in the Trustee’s best judgment, except for the Trustee’s, or its representatives’, gross
negligence, fraud, or willful misconduct. The Trustee may rely conclusively and shall be protected in acting upon any order, notice,
demand, certificate, opinion or advice of counsel (including counsel chosen by the Trustee, which counsel may be the Company’s
counsel), statement, instrument, report or other paper or document (not only as to its due execution and the validity and
effectiveness of its provisions, but also as to the truth and acceptability of any information therein contained) which the Trustee
believes, in good faith and with reasonable care, to be genuine and to be signed or presented by the proper person or persons. The
Trustee shall not be bound by any notice or demand, or any waiver, modification, termination or rescission of this Agreement or any
of the terms hereof, unless evidenced by a written instrument delivered to the Trustee, signed by the proper party or parties and,
if the duties or rights of the Trustee are affected, unless it shall give its prior written consent thereto;

 

(g)              
Verify the accuracy of the information contained in the Registration Statement;

 

(h)              
Provide any assurance that any Business Combination entered into by the Company or any other action taken by the Company is as
contemplated by the Registration Statement;

 

(i)                
File information returns with respect to the Trust Account with any local, state or federal taxing authority or provide periodic
written statements to the Company documenting the taxes payable by the Company, if any, relating to any interest income earned on the
Property;

 

(j)                
Prepare, execute and file tax reports, income or other tax returns and pay any taxes with respect to any income generated by, and
activities relating to, the Trust Account, regardless of whether such tax is payable by the Trust Account or the Company, including, but
not limited to, franchise and income tax obligations, except pursuant to Section 1(j) hereof; or

 

(k)              
Verify calculations, qualify or otherwise approve the Company’s written requests for distributions pursuant to Sections 1(i),
1(j), 1(k) and 1(l) hereof.

 

4.                 
Trust Account Waiver. The Trustee has 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. In the event the Trustee has any Claim against the Company under this Agreement, including, without limitation,
under Section 2(b) or Section 2(c) hereof, the Trustee 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.

 

5.                 
Termination and Replacement of Trustee. This Agreement shall terminate as follows:

 

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(a)               If
the Trustee gives written notice to the Company that it desires to resign under this Agreement, the Company shall use its reasonable
efforts to locate a successor trustee, pending which the Trustee shall continue to act in accordance with this Agreement. At such
time that the Company notifies the Trustee that a successor trustee has been appointed and has agreed to become subject to the terms
of this Agreement, the Trustee shall transfer the management of the Trust Account to the successor trustee, including but not
limited to the transfer of copies of the reports and statements relating to the Trust Account and any other reasonable transfer
requests that the Company may make, whereupon this Agreement shall terminate; provided, however, that in the event
that the Company does not locate a successor trustee within ninety (90) days of receipt of the resignation notice from the Trustee,
the Trustee may submit an application to have the Property deposited with any court in the State of New York or with the United
States District Court for the Southern District of New York and upon such deposit, the Trustee shall be immune from any
liability whatsoever; or

 

(b)              
At such time that the Trustee has completed the liquidation of the Trust Account and its obligations in accordance with the provisions
of Section 1(i) hereof and distributed the Property in accordance with the provisions of the Termination Letter, this Agreement
shall terminate except with respect to Section 2(b).

 

6.                 
Miscellaneous.

 

(a)              
The Company and the Trustee each acknowledge that the Trustee will follow the security procedures set forth below with respect
to funds transferred from the Trust Account. The Company and the Trustee will each restrict access to confidential information relating
to such security procedures to authorized persons. Each party must notify the other party immediately if it has reason to believe unauthorized
persons may have obtained access to such confidential information, or of any change in its authorized personnel. In executing funds transfers,
the Trustee shall rely upon all information supplied to it by the Company, including, account names, account numbers, and all other identifying
information relating to a Beneficiary, Beneficiary’s bank or intermediary bank. Except for any liability arising out of the Trustee’s,
or its representatives’, gross negligence, fraud, or willful misconduct, the Trustee shall not be liable for any loss, liability
or expense resulting from any error in the information or transmission of the funds.

 

(b)              
This Agreement shall be governed by and construed and enforced in accordance with the laws of the State of New York, without
giving effect to conflicts of law principles that would result in the application of the substantive laws of another jurisdiction. This
Agreement may be executed in several original or facsimile counterparts, each one of which shall constitute an original, and together
shall constitute but one instrument.

 

(c)              
This Agreement contains the entire agreement and understanding of the parties hereto with respect to the subject matter hereof.
This Agreement or any provision hereof may only be changed, amended or modified (other than to correct a typographical error) by a writing
signed by each of the parties hereto.

 

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(d)               Sections 1(i)
and 1(l) hereof may only be changed, amended or modified pursuant to Section 6(c) hereof with the Consent of the
Stockholders, it being the specific intention of the parties hereto that each of the Company’s stockholders is, and shall be,
a third party beneficiary of this Section 6(d) with the same right and power to enforce this Section 6(d) as
the other parties hereto. For purposes of this Section 6(d), the “Consent of the Stockholders” means
receipt by the Trustee of a certificate from the inspector of elections of the stockholder meeting certifying that either
(i) the Company’s stockholders of record as of a record date established in accordance with Section 213(a) of the
Delaware General Corporation Law, as amended (“DGCL”) (or any successor rule), who hold sixty-five percent (65%)
or more of all then outstanding shares of the Common Stock and Class B common stock, par value $0.0001 per share, of the Company
voting together as a single class, have voted in favor of such change, amendment or modification, or (ii) the Company’s
stockholders of record as of the record date who hold sixty-five percent (65%) or more of all then outstanding shares of the Common
Stock and Class B common stock, par value $0.0001 per share, of the Company voting together as a single class, have delivered to
such entity a signed writing approving such change, amendment or modification. No such amendment will affect any Public Stockholder
who has otherwise indicated his election to redeem his share of Common Stock in connection with a stockholder vote sought to amend
the Certificate of Incorporation. Except for any liability arising out of the Trustee’s, or its representatives’, gross
negligence, fraud, or willful misconduct, the Trustee may rely conclusively on the certification from the inspector or elections
referenced above and shall be relieved of all liability to any party for executing the proposed amendment in reliance thereon.

 

(e)              
The parties hereto consent to the jurisdiction and venue of any state or federal court located in the City of New York, County
of New York, State of New York, for purposes of resolving any disputes hereunder. AS TO ANY CLAIM, CROSS-CLAIM OR COUNTERCLAIM
IN ANY WAY RELATING TO THIS AGREEMENT, EACH PARTY WAIVES THE RIGHT TO TRIAL BY JURY.

 

(f)               
Any notice, consent or request to be given in connection with any of the terms or provisions of this Agreement shall be in writing
and shall be sent by express mail or similar private courier service, by certified mail (return receipt requested), by hand delivery or
by facsimile or email transmission:

 

if to the Trustee, to:

Continental Stock Transfer & Trust Company

1 State Street

30th Floor

 

New York, New York 10004

Attn: Francis Wolf and Celeste Gonzalez

Email: fwolf@continentalstock.com

Email: cgonzalez@continentalstock.com

 

if to the Company, to:

Osiris Acquisition Corp.

95 5th Avenue, 6th
Floor

New York, NY 10003

Attn: [ ]

Email: [ ]

 

    8

     

    

 

in each case, with copies to:

Paul, Weiss, Rifkind, Wharton & Garrison LLP

1285 Avenue of the Americas

New York, NY 10019

Attn: Raphael M. Russo

Email: rrusso@paulweiss.com

Fax No.: (212) 757-3990

 

and

Jefferies LLC

520 Madison Avenue

New York, NY 10022

Attn: General Counsel

 

in each case, with copies to:

 

White & Case LLP

1221 Avenue of the Americas

New York, NY 10020

Attn.: Joel L. Rubinstein

           Stuart Bressman

           Daniel Nussen

Email: joel.rubinstein@whitecase.com

		           stuart.bressman@whitecase.com	

		           daniel.nussen@whitecase.com	

 

(g)              
This Agreement may not be assigned by the Trustee without the prior consent of the Company.

 

(h)              
Each of the Company and the Trustee hereby represents that it has the full right and power and has been duly authorized to enter
into this Agreement and to perform its respective obligations as contemplated hereunder. The Trustee acknowledges and agrees that it shall
not make any claims or proceed against the Trust Account, including by way of set-off, and shall not be entitled to any funds in the Trust
Account under any circumstance.

 

(i)                
Each of the Company and the Trustee hereby acknowledges and agrees that the Underwriter is a third party beneficiary of this Agreement.

 

(j)                
The Trustee shall perform its duties under this Agreement in compliance with all applicable laws, including those relating to privacy,
data protection and information security, shall keep confidential all information (including personally identifiable information and personal
data) relating to this Agreement and, except as required by applicable law, shall not use such information for any purpose other than
the performance of the Trustee’s obligations under this Agreement.

 

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(k)              
 Except as specified herein, no party to this Agreement may assign its rights or delegate its obligations hereunder to any other
person or entity.

 

(l)                
This Agreement may be executed in one or more counterparts, each of which shall for all purposes be deemed to be an original but
all of which together shall constitute one and the same Agreement. Only one counterpart signed by the party against whom enforceability
is sought needs to be produced to evidence the existence of this Agreement.

 

[Signature Page Follows]

 

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

 

	 	Continental Stock Transfer & Trust Company, as Trustee
	 	 	 
		By:	

	 	 	Name: Francis Wolf
	 	 	Title: Vice President & Assistant Secretary

 

	 	Osiris Acquisition Corp.
	 	 	 
		By:	

	 	 	Name: Benjamin E. Black
	 	 	Title: Chief Executive Officer

 

[Signature Page to Investment
Management Trust Agreement]

 

     

     

    

 

SCHEDULE A

 

	Fee Item	Time and method of payment	Amount
	Initial set-up fee.	Initial closing of Offering by wire transfer.	$3,500.00
	Trustee administration fee	Payable annually.  First year fee payable at initial closing of Offering by wire transfer; thereafter, payable by wire transfer or check.	$10,000.00
	Transaction processing fee for disbursements to Company under Sections 1(i), 1(j), 1(k) and 1(l)	 Billed to Company following disbursement made to Company under Section 1	$250.00
	Paying Agent services as required pursuant to Sections 1(i) and 1(l)	Billed to Company upon delivery of service pursuant to Sections 1(i) and 1(l)	Prevailing rates

 

    Sch. A-1

     

    

 

EXHIBIT A

 

[Letterhead of Company]

 

Continental Stock Transfer & Trust Company

1 State Street, 30th Floor

New York, New York 10004

Attn: Francis Wolf and Celeste Gonzalez

 

		Re:	Trust Account - Termination Letter

 

Dear Francis Wolf and Celeste Gonzalez:

 

Pursuant to Section 1(i) of the Investment
Management Trust Agreement between Osiris Acquisition Corp. (the “Company”) and Continental Stock Transfer & Trust
Company (the “Trustee”), dated as of [_], 2021 (the “Trust Agreement”), this is to advise you that
the Company has entered into an agreement with [Target] (the “Target Business”) to consummate a business combination
with Target Business (the “Business Combination”) on or about [Date]. The Company shall notify you at least seventy-two
(72) hours in advance of the actual date of the consummation of the Business Combination (the “Consummation Date”).
Capitalized terms used but not defined herein shall have the meanings set forth in the Trust Agreement.

 

In accordance with the terms of the Trust Agreement,
we hereby authorize you to commence to liquidate all of the assets of the Trust Account, and to transfer the proceeds into the trust operating
account at JPMorgan Chase Bank, N.A. to the effect that, on the Consummation Date, all of the funds held in the Trust Account will be
immediately available for transfer to the account or accounts that the Company shall direct on the Consummation Date (including as directed
to it by the Underwriter) (with respect to the Deferred Discount). It is acknowledged and agreed that while the funds are on deposit in
the trust operating account at JPMorgan Chase Bank N.A., awaiting distribution, the Company will not earn any interest or dividends.

 

On the Consummation Date (i) counsel for
the Company shall deliver to you written notification that the Business Combination has been consummated, or will be consummated
substantially concurrently with your transfer of funds to the accounts as directed by the Company (the
 “Notification”) and (ii) the Company shall deliver to you (a) [an affidavit] [a certificate] of the
Chief Executive Officer of the Company, which verifies that the Business Combination has been approved by a vote of the
Company’s stockholders, if a vote is held and (b) a joint written instruction signed by the Company and the Underwriter
with respect to the transfer of the funds held in the Trust Account, including payment of amounts owed to public stockholders who
have properly exercised their redemptions rights and payment of amounts of the Deferred Discount to the underwriter from the Trust
Account directly to the account or accounts directed by the Underwriter (the “Instruction Letter”). You are
hereby directed and authorized to transfer the funds held in the Trust Account immediately upon your receipt of the Notification and
the Instruction Letter, in accordance with the terms of the Instruction Letter. In the event that certain deposits held in the Trust
Account may not be liquidated by the Consummation Date without penalty, you will notify the Company in writing of the same and the
Company shall direct you as to whether such funds should remain in the Trust Account and be distributed after the Consummation Date
to the Company. Upon the distribution of all the funds, net of any payments necessary for reasonable unreimbursed expenses related
to liquidating the Trust Account, your obligations under the Trust Agreement shall be terminated.

 

    Ex. A-1

     

    

 

In the event that the Business Combination is not
consummated on the Consummation Date described in the notice thereof and we have not notified you on or before the original Consummation
Date of a new Consummation Date, then upon receipt by the Trustee of written instructions from the Company, the funds held in the Trust
Account shall be reinvested as provided in Section 1(c) of the Trust Agreement on the business day immediately following the Consummation
Date as set forth in such written instructions as soon thereafter as possible.

 

	 	Very truly yours,
	 	 
	 	OSIRIS ACQUISITION CORP.
	 	 	 
		By:	

	 	 	Name:
	 	 	Title:

 

	Acknowledged:	 
	 	 
	Jefferies LLC	 

 

	 	 	 
	By:	 	 
	 	Name:	 
	 	Title:	 

 

    Ex. A-2

     

    

 

EXHIBIT B

 

[Letterhead of Company]

 

Continental Stock Transfer & Trust Company

1 State Street, 30th Floor

New York, New York 10004

Attn: Francis Wolf and Celeste Gonzalez

 

		Re:	Trust Account - Termination Letter

 

Dear Francis Wolf and Celeste Gonzalez:

 

Pursuant to Section 1(i) of the Investment
Management Trust Agreement between Osiris Acquisition Corp. (the “Company”) and Continental Stock Transfer & Trust
Company (the “Trustee”), dated as of [_], 2021 (the “Trust Agreement”), this is to advise you that
the Company has been unable to effect a Business Combination with a Target Business within the time frame specified in the Company’s
amended and restated Certificate of Incorporation, as described in the Company’s Prospectus relating to the Offering. Capitalized
terms used but not defined herein shall have the meanings set forth in the Trust Agreement.

 

In accordance with the terms of the Trust Agreement,
we hereby authorize you to liquidate all of the assets in the Trust Account and to transfer the total proceeds into a segregated account
held by you on behalf of the Beneficiaries to await distribution to the Public Stockholders. The Company has selected [insert completion
deadline] as the effective date for the purpose of determining when the Public Stockholders will be entitled to receive their share of
the liquidation proceeds. You agree to be the Paying Agent of record and, in your separate capacity as Paying Agent, agree to distribute
said funds directly to the Public Stockholders in accordance with the terms of the Trust Agreement and the amended and restated Certificate
of Incorporation of the Company. Upon the distribution of all the funds, net of any payments necessary for reasonable unreimbursed expenses
related to liquidating the Trust Account, your obligations under the Trust Agreement shall be terminated, except to the extent otherwise
provided in Section 1(i) of the Trust Agreement.

 

	 	Very truly yours,
	 	 	 
	 	OSIRIS ACQUISITION CORP.
	 	 	 
		By:	
	 	 	Name:
	 	 	Title:

 

		cc:	Jefferies LLC

 

     Ex. B-1

     

    

 

EXHIBIT C

 

[Letterhead of Company]

 

Continental Stock Transfer & Trust Company

1 State Street, 30th Floor

New York, New York 10004

Attn: Francis Wolf and Celeste Gonzalez

 

		Re:	Trust Account - Tax Payment Withdrawal Instruction

 

Dear Francis Wolf and Celeste Gonzalez:

 

Pursuant to Section 1(j) of the Investment
Management Trust Agreement between Osiris Acquisition Corp. (the “Company”) and Continental Stock Transfer & Trust
Company (the “Trustee”), dated as of [_], 2021 (the “Trust Agreement”), the Company hereby requests
that you deliver to the Company $___________ of the interest income earned on the Property as of the date hereof. Capitalized terms used
but not defined herein shall have the meanings set forth in the Trust Agreement.

 

The Company needs such funds to pay for the tax obligations
as set forth on the attached tax return or tax statement. In accordance with the terms of the Trust Agreement, you are hereby directed
and authorized to transfer (via wire transfer) such funds promptly upon your receipt of this letter to the Company’s operating account
at:

 

[WIRE INSTRUCTION INFORMATION]

 

	 	Very truly yours,
	 	 	 
	 	OSIRIS ACQUISITION CORP.
	 	 	 
		By:	
	 	 	Name:
	 	 	Title:

 

		cc:	Jefferies LLC 

 

     Ex. C-1

     

    

 

EXHIBIT D

 

[Letterhead of Company]

 

Continental Stock Transfer & Trust Company

1 State Street, 30th Floor

New York, New York 10004

Attn: Francis Wolf and Celeste Gonzalez

 

		Re:	Trust Account - Stockholder Redemption Withdrawal Instruction

 

Dear Francis Wolf and Celeste Gonzalez:

 

Pursuant to Section 1(l) of the Investment
Management Trust Agreement between Osiris Acquisition Corp. (the “Company”) and Continental Stock Transfer & Trust
Company (the “Trustee”), dated as of [_], 2021 (the “Trust Agreement”), the Company hereby requests
that you deliver to the redeeming Public Stockholders of the Company $__________ of the principal and interest income earned on the Property
as of the date hereof into a segregated account held by you on behalf of the Beneficiaries for distribution to the Stockholders who have
requested redemption of their shares. Capitalized terms used but not defined herein shall have the meanings set forth in the Trust Agreement.

 

The Company needs such funds to pay its Public Stockholders
who have properly elected to have their shares of Common Stock redeemed by the Company in connection with a stockholder vote to approve
an amendment to the Company’s amended and restated Certificate of Incorporation. As such, you are hereby directed and authorized
to transfer (via wire transfer) such funds promptly upon your receipt of this letter.

 

	 	OSIRIS ACQUISITION CORP.
	 	 	 
		By:	
	 	 	Name:
	 	 	Title:

 

		cc:	Jefferies LLC

 

    Ex. D-1Exhibit 10.9

 

FORWARD PURCHASE AGREEMENT

 

This Forward Purchase Agreement
(this “Agreement”) is entered into as of [___], 2021, by and between Osiris Acquisition Corp., a Delaware corporation
(the “Company”), and Osiris Sponsor, LLC, a Delaware limited liability company (the “Purchaser”).

 

Recitals

 

WHEREAS, the Company was incorporated
as a Delaware corporation and formed 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 25,000,000 units (or 28,750,000 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-half 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, Osiris Sponsor, LLC, has agreed to purchase an aggregate of 7,000,000 warrants (or 7,750,000 warrants if the IPO Option is exercised
in full) at a price of $1.00 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 the Purchaser, and the Purchaser shall purchase
from the Company, on a private placement basis, the number of units (the “Forward Purchase Units”) determined pursuant
to Section 1(a) hereof, each comprised of one Class A Share (each, a “Forward Purchase Share”) and one-half of one
warrant (each, a “Forward Purchase Warrant”), on the terms and conditions set forth herein (the Forward Purchase Shares,
the Forward Purchase Warrants underlying the Forward Purchase Units and the Class A Shares underlying the Forward Purchase Warrants, the
 “Forward Purchase Securities”);

 

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 the payment of the deferred fees due
to the underwriters of the IPO) and any other equity or debt financing obtained by the Company in connection with the Business Combination
(the “Available Cash”), together with the proceeds from the sale of the Forward Purchase Units, will be used to satisfy
the cash requirements of the Business Combination, including funding the purchase price and paying expenses and retaining amounts specified
in the definitive agreement for the Business Combination (the “Definitive Agreement”) to be retained for use by the
post-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
Units.

 

(i)  Subject
to Sections 1(a)(ii), (iii) and (iv), the Company shall issue and sell to the Purchaser, and the Purchaser shall purchase from the Company,
the number of Forward Purchase Units determined by the Company in an amount not to exceed 5,000,000 Forward Purchase Units (the “Maximum
Amount”) for a purchase price of $10.00 per Forward Purchase Unit. The Maximum Amount may be increased at the request of the Company,
but only if agreed to in writing by the Purchaser in its sole discretion. The Forward Purchase Units will be separable into the Forward
Purchase Shares and Forward Purchase Warrants at the option of the holder. Each Forward Purchase Warrant will have the same terms as each
Private Placement Warrant, and will be subject to the terms and conditions of the Warrant Agreement to be entered into between the Company
and Continental Stock Transfer & Trust Company, as Warrant Agent, in connection with the IPO.

 

(ii)       The
Company shall require the Purchaser to purchase the Forward Purchase Units by delivering notice (a “Notice”) to the
Purchaser, at least five (5) Business Days before the proposed funding of the aggregate purchase price (the “Forward Purchase
Price”), specifying the anticipated date of the Business Combination Closing. At least one (1) Business Day before the anticipated
date of the Business Combination Closing specified in a Notice, the Purchaser shall fund the Forward Purchase Price in an amount set forth
in a Notice to an account notified by the Company to the Purchaser. If the Business Combination Closing does not occur within ten (10)
days after the Purchaser funds the Forward Purchase Price in full, the Forward Purchase Price shall be automatically returned to the Purchaser, provided that
the return of the Forward Purchase Price shall not terminate this Agreement or otherwise relieve any party of any of its obligations hereunder.
For the 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. The obligation to consummate the purchase of the Forward Purchase Units set forth in this Section 1(a) shall
be transferable or assignable by the Purchaser to one or more third parties to the extent contemplated by Section 4(b).

 

(iii)       The
closing of the sale of the Forward Purchase Units (the “Forward Closing”) shall be held on the same date and concurrently
with the Business Combination Closing. At the Forward Closing, the Company shall issue to the Purchaser the Forward Purchase Units in
the amount determined in accordance with this Section 1(a).

 

(iv)        At
the Forward Closing, upon payment of the Forward Purchase Price, the Company shall issue the Forward Purchase Units 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, pursuant to written instructions delivered by the Purchaser.

  

(b)  Legends.
Each register and book entry for the Forward Purchase Securities shall contain a notation, and each certificate (if any) evidencing the
Forward Purchase Securities 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.

  

SECURITIES EVIDENCED BY THIS CERTIFICATE AND
ORDINARY SHARES OF THE COMPANY ISSUED UPON EXERCISE OF SUCH SECURITIES SHALL BE ENTITLED TO REGISTRATION RIGHTS UNDER A REGISTRATION RIGHTS
AGREEMENT TO BE EXECUTED BY THE COMPANY.”

 

     

     

    

 

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

 

(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.

 

(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 Securities 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
Securities. 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 Units, 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 Units 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 Securities 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 Securities 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
Securities, or any Class A Shares into which the Forward Purchase Securities 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 Securities, 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 Securities 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 Securities.

  

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

 

(i) High Degree of Risk.
The Purchaser understands that its agreement to purchase the Forward Purchase Securities 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 Units.

 

(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 2 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
3 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”).

 

     

     

    

 

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

 

(a)  Incorporation
and Corporate Power. The Company is an exempted company duly incorporated and validly existing and in good standing under the laws
of Cayman Islands 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) 540,000,000 Class
A Shares, none of which are issued and outstanding.

 

(ii) 60,000,000 of the
Company’s Class B ordinary shares, par value $0.0001 per share (the “Class B Shares”), 7,187,500 of which are
issued and outstanding. All of the outstanding Class B Shares have been duly authorized, are fully paid and non-assessable and were issued
in compliance with all applicable federal and state securities laws.

 

(iii) 1,000,000 preference
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 Securities at the Forward Closing, and the securities issuable upon exercise
of the Forward Purchase Warrants, 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 Securities
and the securities issuable upon exercise of the Forward Purchase Warrants 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 Securities. The Forward Purchase Securities, when issued, sold and delivered in accordance with the terms and for the consideration
set forth in this Agreement, and the securities issuable upon exercise of the Forward Purchase Warrants, when issued in accordance with
the terms of the Forward Purchase Warrants and this Agreement, will be validly issued, fully paid and non-assessable, as applicable, 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 3(e) below, the Forward Purchase Securities 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”) 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 Units.

 

(i) 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 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 Purchaser in Section 2 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.

 

4. Registration
Rights; Transfer

 

(a) Registration
Rights. The Purchaser shall be granted registration rights by the Company with respect to the Forward Purchase Securities pursuant
to a registration rights agreement to be entered into with the Company, a form of which has been filed with the registration statement
relating to the Company’s IPO (the “Registration Rights”).

 

(b) Transfer.
This Agreement and all of the Purchaser’s rights and obligations hereunder (including the Purchaser’s obligation to purchase
the Forward Purchase Units) may be transferred or assigned, at any time and from time to time, in whole or in part, to one or more affiliates
of the Purchaser (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 “Joinder Agreement”), which shall reflect the number of Forward Purchase Units 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 Joinder Agreement, the number of Forward Purchase Units to be purchased by the Purchaser
hereunder shall be reduced by the total number of Forward Purchase Units to be purchased by the applicable Transferee pursuant to the
applicable Joinder Agreement, which reduction shall be evidenced by the Purchaser and the Company amending Schedule A to
this Agreement to reflect each transfer and updating the “Number of Forward Purchase Units” and “Aggregate Purchase
Price for Forward Purchase Units” on the Purchaser’s signature page hereto to reflect such reduced number of Forward Purchase
Units, 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
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.

 

     

     

    

  

5.  Trust
Account.

 

(a) 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.

 

(b) 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.

  

6. New York
Stock Exchange Listing. The Company will use commercially reasonable efforts to effect the listing of the Class A Shares and
Public Warrants on the New York Stock Exchange (“NYSE”) (or another national securities exchange) at the time of the
Business Combination Closing.

 

7. Forward
Closing Conditions.

 

(a)  The obligation
of the Purchaser to purchase the Forward Purchase Units 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 Business Combination
shall be consummated substantially concurrently with the purchase of the Forward Purchase Units;

 

(ii) The Business Combination
shall be consummated with a company engaged in a business that is within the investment objectives of the Purchaser;

 

(iii) The Business Combination,
including the target assets or business and the terms of the business combination, shall be reasonably acceptable to the Purchaser;

 

(iv) The Business Combination
shall be approved by a unanimous vote of the board of directors of the Company;

 

(v) The Purchaser shall have
sufficient committed capital allocated to fulfill its funding obligations under this Agreement; 

 

(v) The representations
and warranties of the Company 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 Company or its ability to consummate the transactions contemplated by this Agreement;

 

     

     

    

 

(vi) 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

 

(vii) 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 Units.

 

(b)  The obligation
of the Company to sell the Forward Purchase Units 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 Business Combination
shall be consummated substantially concurrently with the purchase of Forward Purchase Units;

 

(ii) The
representations and warranties of the Purchaser set forth in Section 2 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 Units.

  

8. 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 (12) months from the date of this Agreement; or

 

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

 

In the event of any termination
of this Agreement pursuant to this Section 8, the Forward Purchase Price (and interest thereon, if any), if previously paid,
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 8 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.

 

     

     

    

 

9. 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: Osiris Acquisition Corp.,
95 5th Avenue, 6th Floor, New York, New York 10003, Attn: Anthony Martucci, Chief Financial Officer, email: martucci@fortinbras.com,
with a copy to the Company’s counsel at: Paul, Weiss, Rifkind, Wharton & Garrison LLP, 1285 Avenue of the Americas, New York,
New York 10019, Attn: Brian Janson, Esq., email: bjanson@paulweiss.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 9(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.

 

(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 Securities and the
securities issuable upon conversion or exercise of the Forward Purchase Securities.

 

(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]

 

     

     

    

 

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

 

	PURCHASER:	 
	 	 	 
	OSIRIS SPONSOR, LLC	 
	 	 	 
	By:	 	 	 
	Name:	 	 
	Title:	 	 

 

Address for Notices:

 

Email:

 

	COMPANY:	 
	 	 	 
	OSIRIS ACQUISITION CORP.	 
	 	 	 
	By:	 	 	 
	Name:	 	 
	Title:	 	 

 

     

     

    

 

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

 

	Number of Forward Purchase Units:	 
	 	 
	Aggregate Purchase Price for Forward Purchase Units	$___________________

 

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

 

	 	OSIRIS SPONSOR, LLC
	 	 	 
	 	By:	 	 
	 	Name:	 
	 	Title:	 
	 	 	 
	 	OSIRIS ACQUISITION CORP.
	 	 	 
	 	By:	 	 
	 	Name:	 
	 	Title:	 

 

     

     

    

 

SCHEDULE A

SCHEDULE OF TRANSFERS OF FORWARD PURCHASE UNITS

 

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

 

	
     

     

    Date of Transfer

	 	
     

     

    Transferee
	 	
     

    Number of Forward 

Purchase Units Transferred
	 	
     

    Purchaser Revised Forward Purchase Units Amount

	 	 	 	 	 	 	 

 

     

     

    

 

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

 

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

 

	OSIRIS SPONSOR, LLC	OSIRIS ACQUISITION CORP.
	 	 	 	 
	By:		By:	
	Name:	 	Name:	 
	Title:	 	Title:

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