Exhibit 10.2


 


INVESTMENT MANAGEMENT TRUST AGREEMENT


 


This Investment Management Trust Agreement
(this “Agreement”) is made effective as of [ ], 2021 by and between Altitude Acquisition Corp. III,
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. 333-253051 (the “Registration Statement”) and prospectus (the “Prospectus”)
for the initial public offering (the “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-third of one redeemable warrant, 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 Cantor Fitzgerald & Co., as representative
(the “Representative”) of the several underwriters (the “Underwriters”) named
therein; and


 


WHEREAS, as described in the Prospectus,
$350,000,000 of the gross proceeds of the Offering and sale of the Private Placement Warrants (as defined in the Underwriting Agreement)
(or $402,500,000 if the Underwriters’ 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”);


 


WHEREAS, pursuant to the Underwriting Agreement,
a portion of the Property equal to $12,250,000, or up to $14,087,500 if the Underwriters’ over-allotment option is exercised
in full, is attributable to deferred underwriting discounts and commissions that will be payable by the Company to the Underwriters
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 J.P. Morgan Chase Bank, N.A. (or at another U.S. chartered
commercial bank with consolidated assets of $100 billion or more) in the United States, maintained by the Trustee 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
solely in 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; 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 Representative 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, Chief Financial Officer, President, Executive Vice President, Vice President, 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 Representative, 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 (which interest
shall be net of taxes payable and up to $100,000 of such net interest 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 (1) 24 months after the closing
of the Offering and (2) 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 (which
interest shall be net of taxes payable and up to $100,000 of such net interest to pay dissolution expenses), shall be distributed
to the Public Stockholders of record as of such date;



 


		(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 or 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 by electronic funds transfer or other method of prompt payment, and the
Company shall forward such payment to the relevant taxing authority, as applicable, so long as there is no reduction in the principal
amount initially deposited in the Trust Account; 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 (it being acknowledged and agreed that any such amount in excess
of interest income earned on the Property shall not be payable from the Trust Account). 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;



 









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		(k)	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 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 to modify the substance or timing of the Company’s obligation to redeem
100% of shares of Common Stock included in the Units sold in the Offering (the “public shares”) 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



 


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



 


		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, Chief Executive Officer, Chief Financial Officer, President, Executive Vice President, Vice President or Secretary.
In addition, except with respect to its duties under Sections 1(i), 1(j) and 1(k) 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 in any way 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 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, which consent shall not be unreasonably
withheld. The Trustee may not agree to settle any Indemnified Claim without the prior written consent of the Company, which such
consent shall not be unreasonably withheld. The Company may participate in such action with its own counsel;



 









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		(c)	Pay the Trustee the fees set forth on Schedule A hereto, including an initial acceptance
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 it is distributed
to the Company pursuant to Sections 1(i) through 1(j) hereof. The Company shall pay the Trustee the initial acceptance
fee and the first annual administration fee at the consummation of the Offering. 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;



 


		(e)	Provide the Representative 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 Representative, ensure that any Instruction
Letter (as defined in Exhibit A) delivered in connection with a Termination Letter in the form of Exhibit A expressly
provides that the Deferred Discount is paid directly to the account or accounts directed by the Representative on behalf of the
Underwriters 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 Underwriters exercise the over-allotment option (or any
unexercised portion thereof) or such over-allotment option expires, provide the Trustee with a notice in writing of the total amount
of the Deferred Discount.



 


		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 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 expenses incident thereto;



 









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		(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;



 


		(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 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, 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) or 1(k) hereof.



 









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		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. This Agreement shall terminate as follows:



 


		(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, 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 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. 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. Subject to Section 6(d) 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; provided, however,
that no such change, amendment or modification to Section 1(i), 2(f) or Exhibit A may be made without the prior written consent
of the Representative.



 









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		(d)	This Agreement or any provision hereof may only be changed, amended or modified pursuant to Section
6(c) hereof with the Consent of the Stockholders. 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 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. No such amendment will affect any Public Stockholder who has otherwise
indicated his election to redeem his shares of Common Stock in connection with a stockholder vote sought to amend this Agreement
to modify the substance or timing of the Company’s obligation to redeem 100% of the Common Stock if the Company does not
complete its initial Business Combination within the time frame specified in the Company’s amended and restated certificate
of incorporation. Except for any liability arising out of the Trustee’s 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, 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 electronic mail:



 


if to the Trustee, to:


 


Continental Stock Transfer &
Trust Company


1 State Street, 30th Floor


New York, New York 10004


Attn:      Francis
Wolf


Celeste Gonzalez


Christopher
Martinez


Brian Murphy


Email: fwolf@continentalstock.com


Email: cgonzalez@continentalstock.com


Email: cmartinez@continentalstock.com


Email: bmurphy@continentalstock.com


 


 






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if to the Company, to:


 


Altitude Acquisition Corp. III


400 Perimeter Center Terrace Suite
151


Atlanta, Georgia 30346


Attn: Gary Teplis


Email: gary.teplis@teplis.com


 


in each case, with copies to:


 


White & Case LLP


1221 Avenue of the Americas


New York, New York 10020


Attn: Joel L. Rubinstein


Email: joel.rubinstein@whitecase.com


 


and


 


Cantor Fitzgerald & Co.


110 East 59th Street


New York, New York 10022


Attention: General Counsel


 


and


 


Ellenoff Grossman & Schole
LLP


1345 Avenue of the Americas


New York, NY 10105


Attn.: Stuart Neuhauser


Email: sneuhauser@egsllp.com


 


		(g)	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.



 


		(h)	This Agreement is the joint product of the Trustee and the Company and each provision hereof has
been subject to the mutual consultation, negotiation and agreement of such parties and shall not be construed for or against any
party hereto.



 


		(i)	This Agreement may be executed in any number of counterparts, each of which shall be deemed to
be an original, but all such counterparts shall together constitute one and the same instrument. Delivery of a signed counterpart
of this Agreement by facsimile or electronic transmission shall constitute valid and sufficient delivery thereof.



 


		(j)	Each of the Company and the Trustee hereby acknowledges and agrees that the Representative on behalf
of the Underwriters is a third-party beneficiary of this Agreement.



 


		(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.



 


[Signature Page Follows]


 










    8


     


    

 


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:	 
	 	 	Title:	 
	 	 
	 	ALTITUDE ACQUISITION CORP. III
	 	 
	 	By:	 
	 	 	Name:	 Gary Teplis
	 	 	Title:	 President, Chief Executive Officer 

and Director









 


[Signature Page to Investment Management
Trust Agreement]


 




    9


     


    

 


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 by wire transfer or check.	 	$	10,000.00	 
	Transaction processing fee for disbursements to Company under Sections 1 and 2	 	Billed to Company following disbursement made to Company under Section 1 and 2	 	$	250.00	 
	Paying Agent services as required pursuant to Section 1(i) and 1(k)	 	Billed to Company upon delivery of service pursuant to Section 1(i) and 1(k)	 	 	Prevailing rates	 




 




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Exhibit
A



[Letterhead of Company]


 


[Insert date]


 


Continental Stock Transfer & Trust
Company


1 State Street, 30th Floor


New York, New York 10004





	Attn:	Francis Wolf 
	 	Celeste Gonzalez
	 	Christopher Martinez
	 	Brian Murphy


 


Re: Trust Account No. Termination Letter


 


Dear Mr. Wolf, Ms. Gonzalez, Mr. Martinez
and Mr. Murphy:


 


Pursuant to Section 1(i) of the
Investment Management Trust Agreement between Altitude Acquisition Corp. III (the “Company”) and Continental
Stock Transfer & Trust Company (“Trustee”), dated as of, 2021 (the “Trust Agreement”),
this is to advise you that the Company has entered into an agreement with (the “Target Business”) to
consummate a business combination with Target Business (the “Business Combination”) on or about [insert
date]. The Company shall notify you at least seventy-two (72) hours in advance of the actual date (or such shorter period as
you may agree) 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
to a segregated account held by you on behalf of the Beneficiaries 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 Representative on behalf of the Underwriters (with respect to the Deferred
Discount)).


 


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
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) a certificate by the Chief Executive Officer, Chief Financial Officer, Co-Executive
Chairman or Vice Chairman, 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 Representative 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
redemption rights and payment of the Deferred Discount directly to the account or accounts directed by the Representative from
the Trust Account (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.


 


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 notice as soon thereafter as possible.


 


	 	Very truly yours,
	 	 
	 	Altitude Acquisition Corp. III
	 	 
	 	By:	                
	 	 	Name:
	 	 	Title:


 





	Agreed and acknowledged by:	 
	 	 	 
	Cantor Fitzgerald & Co.	 
	 	 	 
	By:	          	 
	 	Name:	 
	 	Title:	 	 


 







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Exhibit
B



[Letterhead of Company]


 


[Insert date]


 


Continental Stock Transfer & Trust
Company


1 State Street, 30th Floor


New York, New York 10004





	Attn:	Francis Wolf 
	 	Celeste Gonzalez
	 	Christopher Martinez
	 	Brian Murphy


 


Re: Trust Account No. Termination Letter


 


Dear Mr. Wolf, Ms. Gonzalez, Mr. Martinez
and Mr. Murphy:


 


Pursuant to Section 1(i) of the Investment
Management Trust Agreement between Altitude Acquisition Corp. III (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 (the “Business
Combination”) 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 Operating 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 (1) 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 Company’s 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,
	 	 	 
	 	Altitude Acquisition Corp. III
	 	 	 
	 	By:	 
	 	 	Name:	 
	 	 	Title:	 


 


cc: Cantor Fitzgerald & Co.


 


		(1)	24 months from the closing of the Offering or such later date as may be approved by the Company’s
stockholders in accordance with the Company’s amended and restated certificate of incorporation.



 




    12


     


    

 


Exhibit
C



[Letterhead of Company]


 


[Insert date]


 


Continental Stock Transfer & Trust
Company


1 State Street, 30th Floor


New York, New York 10004





	Attn:	Francis Wolf 
	 	Celeste Gonzalez
	 	Christopher Martinez
	 	Brian Murphy


 


Re: Trust Account No. Tax Payment or
Working Capital Withdrawal Instruction


 


Dear Mr. Wolf, Ms. Gonzalez, Mr. Martinez
and Mr. Murphy:


 


Pursuant to Section 1(j) of the
Investment Management Trust Agreement between Altitude Acquisition Corp. III (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,
	 	 	 
	 	Altitude Acquisition Corp. III
	 	 	 
	 	By:	 
	 	 	Name:	 
	 	 	Title:	 


 


cc: Cantor Fitzgerald & Co.


 




    13


     


    

 


Exhibit
D



[Letterhead of Company]


 


[Insert date]


 


Continental Stock Transfer & Trust
Company


1 State Street, 30th Floor


New York, New York 10004 


	Attn:	Francis Wolf 
	 	Celeste Gonzalez
	 	Christopher Martinez
	 	Brian Murphy



 


Re: Trust Account No. Stockholder Redemption
Withdrawal Instruction


 


Dear Mr. Wolf, Ms. Gonzalez, Mr. Martinez
and Mr. Murphy:


 


Pursuant to Section 1(k) of the
Investment Management Trust Agreement between Altitude Acquisition Corp. III (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 to a segregated account held by you on behalf of the Beneficiaries. 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 to modify the
substance or timing of the Company’s obligation to redeem 100% of 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.
As such, you are hereby directed and authorized to transfer (via wire transfer) such funds promptly upon your receipt of this letter
to a segregated account held by you on behalf of the Beneficiaries.


 


	 	Very truly yours,
	 	 	 
	 	Altitude Acquisition Corp. III
	 	 	 
	 	By:	 
	 	 	Name:	 
	 	 	Title:	 



 


cc: Cantor Fitzgerald & Co.


 


 


14