Document:

Exhibit 4.2

 

Consent of Independent Registered
Public Accounting Firm

 

We have issued our
report dated March 17, 2022, with respect to the financial statement of Advisors Disciplined Trust 2005 contained in Amendment
No. 3 to the Registration Statement on Form S-6 (File No. 333-237061) and related Prospectus. We consent to the use of the aforementioned
report in the Registration Statement and Prospectus, and to the use of our name as it appears under the caption “Experts”.

 

	 	/s/ Grant
Thornton LLP

  

Chicago, Illinois

March 17, 2022EX-4.1

 Exhibit 4.1 

SPECIMEN CLASS A ORDINARY SHARE CERTIFICATE 
  

					
	NUMBER	 		 	SHARES

 VECTOR ACQUISITION CORPORATION IV 

INCORPORATED UNDER THE LAWS OF THE CAYMAN ISLANDS 

CLASS A ORDINARY SHARES 

SEE REVERSE FOR 
 CERTAIN
DEFINITIONS 
 CUSIP:              

This certifies that                      is the owner
of 
 FULLY PAID AND NON-ASSESSABLE CLASS A ORDINARY SHARES OF THE PAR VALUE OF US$0.0001 EACH
OF VECTOR ACQUISITION CORPORATION IV (THE “COMPANY”) 
 subject to the Company’s amended and restated memorandum and articles of
association, as the same may be amended from time to time, and transferable on the books of the Company in person or by duly authorized attorney upon surrender of this certificate properly endorsed. 

The Company will be forced to redeem all of its Class A ordinary shares if it is unable to complete a business combination within the period set forth in
the Company’s amended and restated memorandum and articles of association, as the same may be amended from time to time, all as more fully described in the Company’s final prospectus dated
                    , 2021. 
 This certificate is not
valid unless countersigned by the Transfer Agent and registered by the Registrar. 
 Witness the facsimile signatures of its duly authorized officers. 

 

					
	Dated:
                                         
                   	 		 	
			
	By        
                                        
                                	 		 	                                    
                                         
   
	       Chief Executive Officer
	 		 	Chief Financial Officer

 VECTOR ACQUISITION CORPORATION IV 

The Company will furnish without charge to each shareholder who so requests the powers, designations, preferences and relative, participating, optional or
other special rights of each class of shares or series thereof of the Company and the qualifications, limitations, or restrictions of such preferences and/or rights. This certificate and the shares represented thereby are issued and shall be held
subject to all the provisions of the Company’s amended and restated memorandum and articles of association, as the same may be amended from time to time, and resolutions of the Board of Directors providing for the issue of Class A ordinary
shares (copies of which may be obtained from the secretary of the Company), to all of which the holder of this certificate by acceptance hereof assents. The following abbreviations, when used in the inscription on the face of this certificate, shall
be construed as though they were written out in full according to applicable laws or regulations: 
  

			
	TEN COM — as tenants in common	  	UNIF GIFT MIN ACT — Custodian
		
		  	
                       
                   

(Cust)                (Minor)

		
	TEN ENT — as tenants by the entireties	  	under Uniform Gifts to Minors Act
		
		  	                                  
      
		  	(State)
		
	JT TEN — as joint tenants with right of survivorship and not as tenants in common	  	
	
	Additional abbreviations may also be used though not in the above list.

 For value received,
                     hereby sells, assigns and transfers unto 

(PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER(S) OF ASSIGNEE(S)) 

(PLEASE PRINT OR TYPEWRITE NAME(S) AND ADDRESS(ES), INCLUDING ZIP CODE, OF ASSIGNEE(S)) 

Shares represented by the within Certificate, and does hereby irrevocably constitute and appoint
                 Attorney to transfer the said shares on the books of the within named Company with full power of substitution in the premises. 

 

					
	Dated:	  		  	
		  	  
	  	  

		  		  	Shareholder
			
		  		  	NOTICE: THE SIGNATURE(S) TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME AS WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER.

  

	
	Signature(s) Guaranteed:
	
	By
	
	  

	
	  

 THE SIGNATURE(S) MUST BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS
AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM, PURSUANT TO S.E.C. RULE 17Ad-15 OR ANY SUCCESSOR RULE). 

In each case, as more fully described in the Company’s final prospectus dated             ,
2021, the holder(s) of this certificate shall be entitled to receive a pro-rata portion of certain funds held in the trust account established in connection with its initial public offering only in the event
that (i) the Company redeems the Class A ordinary shares sold in its initial public offering and liquidates because it does not consummate an initial business combination within the period of time set forth in the Company’s amended
and restated memorandum and articles of association, as the same may be amended from time to time, (ii) the Company redeems the Class A ordinary shares sold in its initial public offering in connection with a shareholder vote to amend the
Company’s amended and restated memorandum and articles of association (A) that would modify the substance or timing of the Company’s obligation to provide holders of the Class A ordinary shares the right to have their shares
redeemed in connection with the Company’s initial business combination or to redeem 100% of the Class A ordinary shares if the Company does not complete its initial business combination within the time period set forth therein or
(B) with respect to any other provision relating to the rights of holders of the Class A ordinary shares, or (iii) if the holder(s) seek(s) to redeem for cash his, her or its respective Class A ordinary shares in connection with
a tender offer (or proxy solicitation, solely in the event the Company seeks shareholder approval of the proposed initial business combination) setting forth the details of a proposed initial business combination. In no other circumstances shall the
holder(s) have any right or interest of any kind in or to the trust account.EX-10.1

 Exhibit 10.1 

INVESTMENT MANAGEMENT TRUST AGREEMENT 

This Investment Management Trust Agreement (this “Agreement”) is made effective as of May [●], 2021 by and
between Vector Acquisition Corporation IV, a Cayman Islands exempted company (the “Company”), and Continental Stock Transfer & Trust Company, a New York limited purpose trust company (the
“Trustee”). 
 WHEREAS, the Company’s registration statement on Form
S-1, File No. 333-254297 (the “Registration Statement”) and prospectus (the “Prospectus”) for the initial public
offering of the Company’s Class A ordinary shares, par value $0.0001 per share (the “Ordinary Shares” and such initial public offering hereinafter referred to as the “Public 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 Deutsche Bank Securities Inc. and J.P. Morgan Securities LLC, as underwriters (the “Underwriters”); and 

WHEREAS, as described in the Prospectus, $350,000,000 of the gross proceeds of the Public Offering and sale of the Private Placement Shares
(as defined in the Underwriting Agreement) (or $402,500,000 if the Underwriters’ option to purchase additional Ordinary Shares 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 Ordinary Shares issued in the Public 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 shareholders for whose benefit the Trustee shall hold the Property will be referred to as the “Public
Shareholders,” and the Public Shareholders 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 $12,250,000, or $14,087,500 if the Underwriters’
option to purchase additional Ordinary Shares is exercised in full, is attributable to deferred underwriting discounts and commissions that will be payable by the Company to the Underwriters upon 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 Bank of America Corporation (or at another U.S. chartered commercial bank with consolidated assets of $100 billion or more) in the United States, maintained by 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 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; 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 principal, 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 Underwriters 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 or other authorized officer of the Company, 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 and not previously released to us to pay our income taxes (less up to $100,000 of 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 Public Offering and (2) such later date as may be approved by the Company’s shareholders in accordance with the Company’s amended and restated
memorandum and articles of association, 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 

  
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and the Property in the Trust Account, including interest earned on the funds held in the Trust Account and not previously released to the Company to pay its income taxes (less up to $100,000 of
interest to pay dissolution expenses), shall be distributed to the Public Shareholders of record as of such date. It is acknowledged and agreed that there should be no reduction in the principal amount per share initially deposited in the Trust
Account; 
 (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 by electronic funds transfer or other
method of prompt payment, and the Company shall forward such payment to the relevant taxing authority, so long as there is no reduction in the principal amount per share 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; 

(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 “Shareholder Redemption Withdrawal Instruction”), the Trustee shall distribute to the remitting brokers on behalf of Public Shareholders redeeming Ordinary Shares the
amount required to pay redeemed Ordinary Shares from Public Shareholders pursuant to the Company’s amended and restated memorandum and articles of association; 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 Chief Executive Officer, Chief Financial Officer or other authorized officer of the Company. In addition, except with respect to its duties under Sections 1(i), (j) or
(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; 

  
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 (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; 
 (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(k) hereof. The Company shall pay the Trustee the initial acceptance fee and the first annual administration fee at the
consummation of the Public 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) and as may be provided in Section 2(b) hereof; 

(d)    In connection with any vote of the Company’s shareholders regarding a merger, share exchange,
asset acquisition, share 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 shareholder meeting verifying the vote of such shareholders regarding such Business Combination; 

(e)    Provide the Underwriters 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 Underwriters, 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 Underwriters prior to any
transfer of the funds held in the Trust Account to the Company or any other person; 

  
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 (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; 

(h)    If the Company seeks to amend any provisions of its amended and restated memorandum and articles of
association (A) to modify the substance or timing of the Company’s obligation to provide holders of the Ordinary Shares the right to have their shares redeemed in connection with the Company’s initial Business Combination or to redeem
100% of the Ordinary Shares if the Company does not complete its initial Business Combination within the time period set forth therein or (B) with respect to any other provision relating to the rights of holders of the Ordinary Shares (in each
case, an “Amendment”), the Company will provide the Trustee with a letter (an “Amendment Notification Letter”) in the form of Exhibit D providing instructions for the distribution of funds to
Public Shareholders who exercise their redemption option in connection with such Amendment; and 

(i)    Within five (5) business days after the Underwriters exercise their option to purchase
additional shares (or any unexercised portion thereof) or such option to purchase additional shares 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 written 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; 
 (d)    Change the investment of any
Property, other than in compliance with Section 1 hereof; 
 (e)    Refund any
depreciation in principal of any Property; 
 (f)    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; 

  
 5 

 (g)    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; 

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

(i)    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; 
 (j)    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;

 (k)    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, income tax obligations, except pursuant to
Section 1(j) hereof; or 
 (l)    Verify calculations, qualify or otherwise
approve the Company’s written requests for distributions pursuant to Sections 1(i), 1(j) or 1(k) 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. 

  
 6 

 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 by the Company 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, 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. Except for Section 1(i), 1(j) and 1(k) hereof (which sections may not be modified,
amended or deleted without the affirmative vote of sixty-five percent (65%) of the then outstanding Ordinary Shares and Class B ordinary shares, par value $0.0001 per share, of the Company, voting together as a single class; provided
that no such amendment will affect any Public Shareholder who 

  
 7 

 
has properly elected to redeem his or her Ordinary Shares in connection with a shareholder vote to amend this Agreement to modify the substance or timing of the Company’s obligation to
provide for the redemption of the Ordinary Shares in connection with an initial Business Combination or an Amendment or to redeem 100% of its Ordinary Shares if the Company does not complete its initial Business Combination within the time frame
specified in the Company’s amended and restated memorandum and articles of association), 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. 
 (d)    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.

 (e)    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 E. Wolf, Jr. & Celeste Gonzalez 

Email: fwolf@continentalstock.com 

  cgonzalez@continentalstock.com 

if to the Company, to: 
 Vector
Acquisition Corporation IV 
 One Market Street 

Steuart Tower, 23rd Floor 
 San
Francisco, CA 94105 
 Attn:    David Baylor 

Email: dbaylor@vectorcapital.com 

in each case, with copies to: 

Kirkland & Ellis LLP 

601 Lexington Avenue 
 New York,
New York 10022 
 Attn:     Christian O. Nagler 

             Debbie P. Yee 

E-mail: cnagler@kirkland.com 

   debbie.yee@kirkland.com 

  
 8 

 and 

Deutsche Bank Securities Inc. 

60 Wall Street 
 New York, New
York 10005 
 Attn:    Benjamin Darsney 

Email: benjamin.darsney@db.com 

and 
 Ropes & Gray LLP

 1211 Avenue of the Americas 

New York, New York 10036 

Attn:    Paul D. Tropp, Esq. 

  Christopher J. Capuzzi, Esq. 

Email: paul.tropp@ropesgray.com 

  christopher.capuzzi@ropesgray.com 

(f)    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. 

(g)    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. 

(h)    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. 

(i)    Each of the Company and the Trustee hereby acknowledges and agrees that the Underwriters are
third-party beneficiaries of this Agreement. 
 (j)    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] 

  
 9 

 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
	
	VECTOR ACQUISITION CORPORATION IV
		
	By:	 	  

	Name:	 	David Baylor
	Title:	 	Chief Financial Officer

 [Signature page to Investment Management Trust Agreement] 

 SCHEDULE A 
  

							
	 Fee Item
	  	 Time and method of payment
	  	Amount	 
	 Initial acceptance fee
	  	Initial closing of IPO by wire transfer	  	 	3,500.00	 
	 Annual fee
	  	First year, initial closing of IPO by wire transfer; thereafter on the anniversary of the effective date of the IPO by wire transfer or check	  	 	10,000.00	 
	 Transaction processing fee for disbursements to Company under Sections 1(i),(j), and (k)
	  	Billed by Trustee to Company under Section 1	  	 	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	 

  
 11 

 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 
  

	 	Re:	 Trust Account - Termination Letter 

Dear Mr. Wolf and Ms. Gonzalez: 

Pursuant to Section 1(i) of the Investment Management Trust Agreement between Vector Acquisition Corporation IV (the
“Company”) and Continental Stock Transfer & Trust Company (“Trustee”), dated as of April [●], 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 time 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 into the trust operating account at Bank of America Corporation 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 Underwriters (with respect to the Deferred Discount) and the Company shall direct on the Consummation Date. It is acknowledged and agreed that while the funds are on deposit in said trust operating account at Bank of America
Corporation awaiting distribution, neither the Company nor the Underwriters will 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) a certificate by the Chief Executive Officer, Chief Financial Officer or other authorized officer of the Company, which verifies that the Business
Combination has been approved by a vote of the Company’s shareholders, if a vote is held and (b) joint written instruction signed by the Company and the Underwriters with respect to the transfer of the funds held in the Trust Account,
including payment of the Deferred Discount 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 

  
 12 

 
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. 

  
 13 

 
			
	Very truly yours,
	
	Vector Acquisition Corporation IV
		
	By:	 	
                    

	Name:	 	  

	Title:	 	  

  

			
	cc:  	 	Deutsche Bank Securities Inc.
		 	J.P. Morgan Securities LLC

  
 14 

 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 
  

	 	Re:	 Trust Account - Termination Letter 

Dear Mr. Wolf and Ms. Gonzalez: 

Pursuant to Section 1(i) of the Investment Management Trust Agreement between Vector Acquisition Corporation IV (the
“Company”) and Continental Stock Transfer & Trust Company (the “Trustee”), dated as of April [●], 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 Memorandum and Articles of Association,
as described in the Company’s Prospectus relating to the Public 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 the trust operating account at Bank of America Corporation to await distribution to the Public Shareholders. The Company has selected
                     as the effective date for the purpose of determining when the Public Shareholders will be entitled to receive their share of the
liquidation proceeds. It is acknowledged that no interest will be earned by the Company on the liquidation proceeds while on deposit in the trust operating account. 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 Shareholders in accordance with the terms of the Trust Agreement and the Amended and Restated Memorandum and Articles of Association 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(j) of the Trust Agreement. 
  

			
	Very truly yours,
	
	Vector Acquisition Corporation IV
		
	By:	 	
                    

	Name:	 	  

	Title:	 	  

  

	cc:	 Deutsche Bank Securities Inc. 

J.P. Morgan Securities LLC 

  
 15 

 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 
  

	 	Re:	 Trust Account - Tax Payment Withdrawal Instruction 

Dear Mr. Wolf and Ms. Gonzalez: 

Pursuant to Section 1(j) of the Investment Management Trust Agreement between Vector Acquisition Corporation IV (the
“Company”) and Continental Stock Transfer & Trust Company (the “Trustee”), dated as of April [●], 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,
	
	Vector Acquisition Corporation IV
		
	By:	 	
                    

	Name:	 	  

	Title:	 	  

  

	cc:	 Deutsche Bank Securities Inc. 

J.P. Morgan Securities LLC 

  
 16 

 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 
  

	 	Re:	 Trust Account - Shareholder Redemption Withdrawal Instruction 

Dear Mr. Wolf and Ms. Gonzalez: 

Pursuant to Section 1(k) of the Investment Management Trust Agreement between Vector Acquisition Corporation IV (the
“Company”) and Continental Stock Transfer & Trust Company (the “Trustee”), dated as of April [●], 2021 (the “Trust Agreement”), the Company hereby requests that
you deliver to the Company’s shareholders $         of the principal and 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. 
 Pursuant to Section 1(k) of the Trust Agreement, this is to advise you that the Company has sought
an Amendment. Accordingly, in accordance with the terms of the Trust Agreement, we hereby authorize you to liquidate a sufficient portion of the Trust Account and to transfer $         of the proceeds of the
Trust Account to the trust operating account at Bank of America Corporation for distribution to the shareholders that have requested redemption of their shares in connection with such Amendment. 

 

			
	Very truly yours,
	
	Vector Acquisition Corporation IV
		
	By:	 	
                    

	Name:	 	  

	Title:	 	  

  

			
	cc:  	 	Deutsche Bank Securities Inc.
		 	J.P. Morgan Securities LLC

  
 17

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