Document:

Exhibit
10.1

 

March
17, 2021

 

Forum
Merger IV Corporation

1615
South Congress Avenue, Suite 103

Delray
Beach, Florida 33445

 

		Re:	Initial
    Public Offering

 

Ladies
and Gentlemen:

 

This
letter (this “Letter Agreement”) is being delivered to you in accordance with the
Underwriting Agreement (the “Underwriting Agreement”) entered into by and among Forum
Merger IV Corporation, a Delaware corporation (the “Company”), and Jefferies LLC, as representative
(the “Representative”) of the several underwriters (each, an “Underwriter”
and collectively, the “Underwriters”), relating to an underwritten initial public offering (the “Public Offering”),
of up to 34,500,000 of the Company’s units (including up to 4,500,000 units that may be purchased to cover over-allotments,
if any) (the “Units”), each comprised of one share of the Company’s Class A common stock, par
value $0.0001 per share (the “Common Stock”), and one-fourth of one redeemable warrant.
Each whole warrant (each, a “Warrant”) entitles the holder thereof to purchase one share of Common Stock
at a price of $11.50 per share, subject to adjustment. The Units will be sold in the Public Offering pursuant to a registration
statement on Form S-1 and prospectus (the “Prospectus”) filed by the Company with the U.S. Securities
and Exchange Commission (the “Commission”) and the Company has applied to have the Units listed on The
Nasdaq Capital Market. Certain capitalized terms used herein are defined in paragraph 11 hereof.

 

In
order to induce the Company and the Underwriters to enter into the Underwriting Agreement and to proceed with the Public Offering
and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, each of Forum Investors
IV LLC (the “Sponsor”) and the undersigned individuals, each of whom is a member of the Company’s
board of directors and/or management team (each, an “Insider” and collectively, the “Insiders”),
hereby agrees with the Company as follows:

 

		1.	The
                                         Sponsor and each Insider agrees that if the Company seeks stockholder approval of a proposed
                                         Business Combination, then in connection with such proposed Business Combination, it,
                                         he or she shall (i) vote any shares of Capital Stock owned by it, him or her in
                                         favor of any proposed Business Combination and (ii) not redeem any shares of Common Stock
                                         owned by it, him or her in connection with such stockholder approval. If the Company
                                         seeks to consummate a proposed Business Combination by engaging in a tender offer, the
                                         Sponsor and each Insider agrees that it, he or she will not sell or tender any shares
                                         of Common Stock owned by it, him or her in connection therewith.

 

		2.	The
                                         Sponsor and each Insider hereby agrees that in the event that the Company fails to consummate
                                         a Business Combination within 24 months from the closing of the Public Offering, or such
                                         later period approved by the Company’s stockholders in accordance with the Company’s
                                         amended and restated certificate of incorporation (as it may be amended from time to
                                         time, the “Charter”), the Sponsor and each Insider shall take
                                         all reasonable steps to cause the Company to (i) cease all operations except for the
                                         purpose of winding up, (ii) as promptly as reasonably possible but not more than ten
                                         business days thereafter, subject to lawfully available funds therefor, redeem 100% of
                                         the shares of Class A Common Stock sold as part of the Units in the Public Offering (the
                                         “Offering Shares”), at a per-share price, payable in cash,
                                         equal to the aggregate amount then on deposit in the Trust Account (as defined below),
                                         including interest earned on the funds held in the Trust Account and not previously released
                                         to the Company to pay its franchise and income taxes (less up to $100,000 of interest
                                         to pay dissolution expenses), divided by the number of then outstanding Offering Shares,
                                         which redemption will completely extinguish all Public Stockholders’ rights as
                                         stockholders (including the right to receive further liquidating distributions, if any),
                                         subject to applicable law, and (iii) as promptly as reasonably possible following such
                                         redemption, subject to the approval of the Company’s remaining stockholders and
                                         the Company’s board of directors, liquidate and dissolve, subject in each case
                                         to the Company’s obligations under Delaware law to provide for claims of creditors
                                         and other requirements of applicable law. The Sponsor and each Insider agrees to not
                                         propose any amendment to the Charter to modify the substance or timing of the Company’s
                                         obligation to redeem 100% of the Offering Shares if the Company does not complete a Business
                                         Combination within the time period set forth in the Charter or with respect to any other
                                         material provisions relating to stockholders’ rights or pre-initial Business Combination
                                         activity, unless the Company provides its Public Stockholders with the opportunity to
                                         redeem their shares of Common Stock upon approval of any such amendment at a per-share
                                         price, payable in cash, equal to the aggregate amount then on deposit 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 franchise and income taxes, divided by the number of then outstanding
                                         Offering Shares.

 

     

     

    

 

The
Sponsor and each Insider acknowledges that it, he or she 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 with respect to the
Founder Shares held by it, him or her. The Sponsor and each Insider hereby further waives, with respect to any shares of Common
Stock held by it, him or her, if any, any redemption rights it, he or she may have in connection with the consummation of a Business
Combination, including, without limitation, any such rights available in the context of a stockholder vote to approve such Business
Combination or a stockholder vote to approve an amendment to the Charter to modify the substance or timing of the Company’s
obligation to redeem 100% of the Offering Shares if the Company has not consummated a Business Combination within the time period
set forth in the Charter or with respect to any other material provisions relating to stockholders’ rights or pre-initial
Business Combination activity or in the context of a tender offer made by the Company to purchase shares of Common Stock (although
the Sponsor, the Insiders and their respective affiliates shall be entitled to redemption and liquidation rights with respect
to any Offering Shares it or they hold if the Company fails to consummate a Business Combination within the time period set forth
in the Charter).

 

		3.	During
                                         the period commencing on the effective date of the Underwriting Agreement and ending
                                         180 days after such date, the Sponsor and each Insider shall not, without the prior written
                                         consent of the Representative, (i) sell, offer to sell, contract or agree to sell, hypothecate,
                                         pledge, grant any option to purchase or otherwise dispose of or agree to dispose of,
                                         directly or indirectly, or establish or increase a put equivalent position or liquidate
                                         or decrease a call equivalent position within the meaning of Section 16 of the Securities
                                         Exchange Act of 1934, as amended (the “Exchange Act”), and
                                         the rules and regulations of the Commission promulgated thereunder, with respect to any
                                         Units, shares of Common Stock, Founder Shares, Warrants or any securities convertible
                                         into, or exercisable, or exchangeable for, shares of Common Stock owned by it, him or
                                         her, (ii) enter into any swap or other arrangement that transfers to another, in whole
                                         or in part, any of the economic consequences of ownership of any Units, shares of Common
                                         Stock, Founder Shares, Warrants or any securities convertible into, or exercisable, or
                                         exchangeable for, shares of Common Stock owned by it, him or her, whether any such transaction
                                         is to be settled by delivery of such securities, in cash or otherwise, or (iii) publicly
                                         announce any intention to effect any transaction specified in clause (i) or (ii). Any
                                         release or waiver granted shall only be effective two business days after the publication
                                         date of such press release. The provisions of this paragraph will not apply if the release
                                         or waiver is effected solely to permit a transfer not for consideration and the transferee
                                         has agreed in writing to be bound by the same terms described in this Letter Agreement
                                         to the extent and for the duration that such terms remain in effect at the time of the
                                         transfer.

 

		4.	In
                                         the event of the liquidation of the Trust Account upon the failure of the Company to
                                         consummate its initial Business Combination within the time period set forth in the Charter,
                                         the Sponsor (the “Indemnitor”) agrees to indemnify and hold
                                         harmless the Company against any and all loss, liability, claim, damage and expense whatsoever
                                         (including, but not limited to, any and all legal or other expenses reasonably incurred
                                         in investigating, preparing or defending against any litigation, whether pending or threatened)
                                         to which the Company may become subject as a result of any claim by (i) any third party
                                         for services rendered or products sold to the Company or (ii) any prospective target
                                         business with which the Company has entered into a written letter of intent, confidentiality
                                         or other similar agreement or Business Combination agreement (a “Target”);
                                         provided, however, that such indemnification of the Company by the Indemnitor (x) shall
                                         apply only to the extent necessary to ensure that such claims by a third party or a Target
                                         do not reduce the amount of funds in the Trust Account to below the lesser of (i) $10.00
                                         per Offering Share and (ii) the actual amount per Offering Share held in the Trust Account
                                         as of the date of the liquidation of the Trust Account, if less than $10.00 per Offering
                                         Share is then held in the Trust Account due to reductions in the value of the trust assets,
                                         less interest earned on the Trust Account which may be withdrawn to pay taxes, (y) shall
                                         not apply to any claims by a third party or a Target which executed a waiver of any and
                                         all rights to the monies held in the Trust Account (whether or not such waiver is enforceable)
                                         and (z) shall not apply to any claims under the Company’s indemnity of the Underwriters
                                         against certain liabilities, including liabilities under the Securities Act of 1933,
                                         as amended. The Indemnitor shall have the right to defend against any such claim with
                                         counsel of its choice reasonably satisfactory to the Company if, within 15 days following
                                         written receipt of notice of the claim to the Indemnitor, the Indemnitor notifies the
                                         Company in writing that it shall undertake such defense.

 

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		5.	To
                                         the extent that the Underwriters do not exercise their over-allotment option to purchase
                                         up to an additional 4,500,000 Units within 45 days from the date of the Prospectus (and
                                         as further described in the Prospectus), the Sponsor agrees to forfeit, at no cost, a
                                         number of Founder Shares in the aggregate equal to 1,125,000 multiplied by a fraction,
                                         (i) the numerator of which is 4,500,000 minus the number of Units purchased by the Underwriters
                                         upon the exercise of their over-allotment option, and (ii) the denominator of which is
                                         4,500,000. The forfeiture will be adjusted to the extent that the over-allotment option
                                         is not exercised in full by the Underwriters so that the Initial Stockholders will own
                                         an aggregate of 20.0% of the Company’s issued and outstanding shares of Capital
                                         Stock after the Public Offering (not including shares of Class A Common Stock underlying
                                         the Private Placement Units (as defined below)).

 

		6.	The
                                         Sponsor and each Insider hereby agrees and acknowledges that: (i) the Underwriters and
                                         the Company would be irreparably injured in the event of a breach by such Sponsor or
                                         an Insider of its, his or her obligations under paragraphs 1, 2, 3, 4, 5, 7(a), and 7(b),
                                         as applicable, of this Letter Agreement (ii) monetary damages may not be an adequate
                                         remedy for such breach and (iii) the non-breaching party shall be entitled to injunctive
                                         relief, in addition to any other remedy that such party may have in law or in equity,
                                         in the event of such breach.

 

		7.	(a)
                                         The Sponsor and each Insider agrees that it, he or she shall not Transfer any Founder
                                         Shares (or shares of Common Stock issuable upon conversion thereof) until the earlier
                                         of (A) one year after the completion of the Company’s initial Business Combination
                                         or (B) subsequent to the Business Combination, (x) if the last sale price of the Common
                                         Stock equals or exceeds $12.00 per share (as adjusted for stock splits, stock dividends,
                                         reorganizations, recapitalizations and the like) for any 20 trading days within any 30-trading
                                         day period commencing at least 150 days after the Company’s initial Business Combination
                                         or (y) the date on which the Company completes a liquidation, merger, capital stock exchange,
                                         reorganization or other similar transaction that results in all of the Company’s
                                         stockholders having the right to exchange their shares of Common Stock for cash, securities
                                         or other property (the “Founder Shares Lock-up Period”).

 

(b)
The Sponsor and each Insider agrees that it, he or she shall not Transfer any Private Placement Units (or any securities underlying
the Private Placement Units, including the shares of Common Stock and Private Placement Warrants (as defined below) included in
the Private Placement Units and the shares of Common Stock issued or issuable upon the exercise of the Private Placement Warrants),
until 30 days after the completion of a Business Combination (the “Private Placement Units Lock-up Period”,
together with the Founder Shares Lock-up Period, the “Lock-up Periods”).

 

(c)
Notwithstanding the provisions set forth in paragraphs 7(a) and (b), Transfers of the Founder Shares, Private Placement Units,
component securities of Private Placement Units and shares of Common Stock issued or issuable upon the exercise or conversion
of the Private Placement Warrants or the Founder Shares and that are held by the Sponsor, any Insider or any of their permitted
transferees (that have complied with this paragraph 7(c)), are permitted (a) to the Company’s officers or directors, any
affiliate or family member of any of the Company’s officers or directors, any members of the Sponsor or any affiliate of
the Sponsor; (b) in the case of an individual, by gift to a member of such individual’s immediate family or to a trust,
the beneficiary of which is a member of such individual’s immediate family, an affiliate of such individual or to a charitable
organization; (c) in the case of an individual, by virtue of laws of descent and distribution upon death of such individual; (d)
in the case of an individual, pursuant to a qualified domestic relations order; (e) by private sales or transfers made in connection
with the consummation of an initial Business Combination at prices no greater than the price at which the securities were originally
purchased; (f) in the event of the Company’s liquidation prior to the completion of an initial Business Combination; (g) by
virtue of the laws of the State of Delaware or the Sponsor’s limited liability company agreement upon dissolution of the
Sponsor; or (h) in the event of the Company’s liquidation, merger, capital stock exchange, reorganization or other similar
transaction which results in all of the Company’s stockholders having the right to exchange their shares of Common Stock
for cash, securities or other property subsequent to the Company’s completion of an initial Business Combination; provided,
however, that in the case of clauses (a) through (e) or (g), these permitted transferees must enter into a written agreement with
the Company agreeing to be bound by the transfer restrictions herein and the other restrictions contained in this Agreement (including
provisions relating to voting, the Trust Account and liquidating distributions.

 

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		8.	The
                                         Sponsor and each Insider represents and warrants that it, he or she has never been suspended
                                         or expelled from membership in any securities or commodities exchange or association
                                         or had a securities or commodities license or registration denied, suspended or revoked.
                                         Each Insider’s biographical information furnished to the Company (including any
                                         such information included in the Prospectus) is true and accurate in all respects and
                                         does not omit any material information with respect to the Insider’s background.
                                         Each Insider’s questionnaire furnished to the Company is true and accurate in all
                                         respects. Each Insider represents and warrants that: it, he or she is not subject to
                                         or a respondent in any legal action for, any injunction, cease-and-desist order or order
                                         or stipulation to desist or refrain from any act or practice relating to the offering
                                         of securities in any jurisdiction; it, he or she has never been convicted of, or pleaded
                                         guilty to, any crime (i) involving fraud, (ii) relating to any financial transaction
                                         or handling of funds of another person, or (iii) pertaining to any dealings in any securities
                                         and it, he or she is not currently a defendant in any such criminal proceeding.

 

		9.	Except
                                         as disclosed in the Prospectus, neither the Sponsor nor any officer, nor any affiliate
                                         of the Sponsor or any officer, nor any director of the Company, shall receive from the
                                         Company any finder’s fee, reimbursement, consulting fee, non-cash payments, monies
                                         in respect of any repayment of a loan or other compensation prior to, or in connection
                                         with any services rendered in order to effectuate, the consummation of the Company’s
                                         initial Business Combination (regardless of the type of transaction that it is), other
                                         than the following, none of which will be made from the proceeds held in the Trust Account
                                         prior to the completion of the initial Business Combination: repayment of a loan and
                                         advances up to an aggregate of $300,000 made to the Company by the Sponsor; payment to
                                         an affiliate of the Sponsor for certain office space, utilities and secretarial and administrative
                                         support as may be reasonably required by the Company for a total of $30,000 per month
                                         (which payments shall be accelerated if the Company consummates the initial Business
                                         Combination prior to the end of the 24-month term, or $720,000 in the aggregate); reimbursement
                                         for any reasonable out-of-pocket expenses related to identifying, investigating and consummating
                                         an initial Business Combination, and repayment of loans, if any, and on such terms as
                                         to be determined by the Company from time to time, made by the Sponsor or any of the
                                         Company’s officers or directors to finance transaction costs in connection with
                                         an intended initial Business Combination, provided, that, if the Company does not consummate
                                         an initial Business Combination, a portion of the working capital held outside the Trust
                                         Account may be used by the Company to repay such loaned amounts so long as no proceeds
                                         from the Trust Account are used for such repayment. Up to $1,200,000 of such loans may
                                         be convertible into units at a price of $10.00 per unit at the option of the lender.
                                         Such units would be identical to the Private Placement Units (as defined below), including
                                         as to exercise price, exercisability and exercise period.

 

		10.	The
                                         Sponsor and each Insider has full right and power, without violating any agreement to
                                         which it is bound (including, without limitation, any non-competition or non-solicitation
                                         agreement with any employer or former employer), to enter into this Letter Agreement
                                         and, as applicable, to serve as a director on the board of directors of the Company and
                                         hereby consents to being named in the Prospectus as a director of the Company.

 

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		11.	As
                                         used herein, (i) “Business Combination” shall mean a merger,
                                         capital stock exchange, asset acquisition, stock purchase, reorganization or similar
                                         business combination, involving the Company and one or more businesses; (ii) “Capital
                                         Stock” shall mean, collectively, the Common Stock and the Founder Shares;
                                         (iii) “Founder Shares” shall mean (a) the 8,625,000 shares
                                         of the Company’s Class B common stock, par value $0.0001 per share, initially issued
                                         to the Sponsor (up to 1,125,000 Shares of which are subject to complete or partial forfeiture
                                         by the Sponsor if the over-allotment option is not exercised by the Underwriters) for
                                         an aggregate purchase price of $25,000, or $0.003 per share, prior to the consummation
                                         of the Public Offering; (iv) “Initial Stockholders” shall mean
                                         the Sponsor and any Insider that holds Founder Shares; (v) “Private Placement
                                         Warrants” shall mean the warrants to purchase up to 232,500 shares of Common
                                         Stock of the Company (or 255,000 shares of Common Stock if the over-allotment option
                                         is exercised in full) underlying the units (“Private Placement Units”)
                                         that the Sponsor and the Underwriters have agreed to purchase for an aggregate purchase
                                         price of $9,300,000 (or $10,200,000 if the over-allotment option is exercised in full),
                                         or $10.00 per unit, in a private placement that shall occur simultaneously with the consummation
                                         of the Public Offering; (vi) “Public Stockholders” shall mean
                                         the holders of securities issued in the Public Offering; (vii) “Trust Account”
                                         shall mean the trust fund into which a portion of the net proceeds of the Public Offering
                                         shall be deposited; and (viii) “Transfer” shall mean the (a)
                                         sale of, offer to sell, contract or agreement to sell, hypothecate, pledge, grant of
                                         any option to purchase or otherwise dispose of or agreement to dispose of, directly or
                                         indirectly, or establishment or increase of a put equivalent position or liquidation
                                         with respect to or decrease of a call equivalent position within the meaning of Section
                                         16 of the Exchange Act, and the rules and regulations of the Commission promulgated thereunder
                                         with respect to, any security, (b) entry into any swap or other arrangement that transfers
                                         to another, in whole or in part, any of the economic consequences of ownership of any
                                         security, whether any such transaction is to be settled by delivery of such securities,
                                         in cash or otherwise, or (c) public announcement of any intention to effect any transaction
                                         specified in clause (a) or (b).

 

		12.	The
                                         Company will maintain an insurance policy or policies providing directors’ and
                                         officers’ liability insurance, and each Director shall be covered by such policy
                                         or policies, in accordance with its or their terms, to the maximum extent of the coverage
                                         available for any of the Company’s directors or officers.

 

		13.	This
                                         Letter Agreement constitutes the entire agreement and understanding of the parties hereto
                                         in respect of the subject matter hereof 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.
                                         This Letter Agreement may not be changed, amended, modified or waived (other than to
                                         correct a typographical error) as to any particular provision, except by a written instrument
                                         executed by all parties hereto.

 

		14.	No
                                         party hereto may assign either this Letter Agreement or any of its rights, interests,
                                         or obligations hereunder without the prior written consent of the other parties. Any
                                         purported assignment in violation of this paragraph shall be void and ineffectual and
                                         shall not operate to transfer or assign any interest or title to the purported assignee.
                                         This Letter Agreement shall be binding on the Sponsor and each Insider and their respective
                                         successors, heirs and assigns and permitted transferees.

 

		15.	Nothing
                                         in this Letter Agreement shall be construed to confer upon, or give to, any person or
                                         corporation other than the parties hereto any right, remedy or claim under or by reason
                                         of this Letter Agreement or of any covenant, condition, stipulation, promise or agreement
                                         hereof. All covenants, conditions, stipulations, promises and agreements contained in
                                         this Letter Agreement shall be for the sole and exclusive benefit of the parties hereto
                                         and their successors, heirs, personal representatives and assigns and permitted transferees.

 

		16.	This
                                         Letter Agreement may be executed in any number of original or facsimile counterparts
                                         and each of such counterparts shall for all purposes be deemed to be an original, and
                                         all such counterparts shall together constitute but one and the same instrument.

 

		17.	This
                                         Letter Agreement shall be deemed severable, and the invalidity or unenforceability of
                                         any term or provision hereof shall not affect the validity or enforceability of this
                                         Letter Agreement or of any other term or provision hereof. Furthermore, in lieu of any
                                         such invalid or unenforceable term or provision, the parties hereto intend that there
                                         shall be added as a part of this Letter Agreement a provision as similar in terms to
                                         such invalid or unenforceable provision as may be possible and be valid and enforceable.

 

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		18.	This
                                         Letter 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. The
                                         parties hereto (i) all agree that any action, proceeding, claim or dispute arising out
                                         of, or relating in any way to, this Letter Agreement shall be brought and enforced in
                                         the courts of New York City, in the State of New York, and irrevocably submit to such
                                         jurisdiction and venue, which jurisdiction and venue shall be exclusive and (ii) waive
                                         any objection to such exclusive jurisdiction and venue or that such courts represent
                                         an inconvenient forum.

 

		19.	Any
                                         notice, consent or request to be given in connection with any of the terms or provisions
                                         of this Letter 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 facsimile transmission.

 

		20.	This
                                         Letter Agreement shall terminate on the earlier of (i) the expiration of the Lock-up
                                         Periods or (ii) the liquidation of the Company; provided, however, that this Letter Agreement
                                         shall earlier terminate in the event that the Public Offering is not consummated and
                                         closed by December 31, 2021; provided further that paragraph 4 of this Letter Agreement
                                         shall survive such liquidation.

 

 

[Signature
Page Follows]

 

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	 	 	Sincerely,
	 	 	 
	 	FORUM INVESTORS IV LLC
	 	 	 	 	 
	 	 	By: Forum Capital Management IV LLC, 

as managing member
	 	 	 	 	 
	 	 	By:	/s/ David Boris 
	 	 	 	Name:	David Boris
	 	 	 	Title:	Managing Member

  

	 	By:	/s/ Marshall Kiev
	 	 	Name:	Marshall Kiev
	 	 	 
	 	By:	/s/ David Boris
	 	 	Name:	David Boris
	 	 	 
	 	By:	/s/ Neil Goldberg
	 	 	Name:	Neil Goldberg
	 	 	 
	 	By:	/s/ Richard Katzman
	 	 	Name:	Richard Katzman
	 	 	 
	 	By:	/s/ Steven Berns
	 	 	Name:	Steven Berns
	 	 	 
	 	By:	/s/ Victor Kiam
	 	 	Name:	Victor Kiam

 

	Acknowledged
    and Agreed:	 
	 	 
	FORUM
    MERGER IV CORPORATION	 
	 	 	 
	By:	/s/
    Marshall Kiev	 
	 	Name: 	Marshall Kiev	 
	 	Title:	Co-Chief Executive Officer	 

 

 

[Signature
Page to Letter Agreement]Exhibit
10.2

 

Execution Version

 

INVESTMENT MANAGEMENT TRUST AGREEMENT

 

This Investment Management
Trust Agreement (this “Agreement”) is made effective as of March 17, 2021, by and between Forum Merger
IV Corporation, 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. 333-253216 (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 redeemable warrant, each 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, as representative (the “Representative”) of the several underwriters (the “Underwriters”)
named therein; and

 

WHEREAS, as described in the Prospectus,
$300,000,000 of the gross proceeds of the Offering and sale of the Private Placement Units (as defined in the Underwriting Agreement)
(or $345,000,000, 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 $10,500,000, or $12,075,000 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) 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 Co-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
complete the liquidation of the Trust Account and distribute the Property in the Trust Account, including interest not
previously released to the Company to pay its franchise and income taxes (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 (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, as amended from time to time (the “Charter”), 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 not previously released to the Company to pay its franchise and income taxes (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;

 

(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, 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 income or franchise 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; 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 for the
Company and a written statement from the principal financial officer of the Company setting forth the actual amount payable
(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, 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 Charter 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 Charter 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

     

    

 

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, Co-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;

 

(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 Section
1(i) upon consummation of a Business Combination. 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;

 

    3

     

    

 

(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,
which shall in no event be less than $10,500,000.

 

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

 

(a)
(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)
(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)
(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;

 

(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, 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) or 1(k) hereof.

 

    4

     

    

 

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) (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) (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.
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.

 

    5

     

    

 

(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 Charter. 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, NY 10004

Attn: Francis Wolf

  Celeste Gonzalez

 

if to the Company, to:

 

Forum Merger IV Corporation

1615 South Congress Avenue, Suite 103

Delray Beach, Florida 33445

Attn: David Boris, Chief Financial Officer

 

in
each case, with copies to:

 

White & Case LLP

1221 Avenue of the Americas

New York, NY 10020

Attn: Joel L. Rubinstein, Esq.

Email: joel.rubinstein@whitecase.com

 

    6

     

    

 

and

 

Jefferies LLC

520 Madison Avenue

New York, NY 10022

Attn: Tina Pappas

Fax No.: (646) 786-5179

 

and

 

Skadden, Arps, Slate, Meagher & Flom LLP

300 South Grand Avenue, Suite 3400

Los Angeles, CA 90071

Attn: Gregg A. Noel, Esq. and P. Michelle Gasaway, Esq.

Email: gregg.noel@skadden.com and michelle.gasaway@skadden.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 Jefferies LLC 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]

 

    7

     

    

 

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:	/s/ Francis Wolf
	 	 	Name:	 Francis Wolf
	 	 	Title:	 Vice President
	 	 
	 	FORUM MERGER IV CORPORATION
	 	 
	 	By:	/s/ Marshall Kiev
	 	 	Name:	 Marshall Kiev
	 	 	Title:	Co-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 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	 	$	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	 

 

    Sch. A-1

     

    

 

EXHIBIT A

 

[Letterhead of Company]

 

[Insert date]

 

Continental Stock
Transfer & Trust Company

1 State Street,
30th Floor

New York, New York 10004

Francis Wolf and 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 Forum Merger IV Corporation (the “Company”) and Continental Stock
Transfer & Trust Company (the “Trustee”), dated as of March 17, 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 of the Co-Chief Executive Officer, Chief Financial Officer or Chairman
of the Board, 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 to 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.

 

    A-1

     

    

 

	 	Very truly yours,
	 	 
	 	Forum Merger IV Corporation
	 	 
	 	By:	 

                                                                                

	 	 	Name:	 
	 	 	Title:	 

 

		cc:	Jefferies LLC

 

    A-2

     

    

 

EXHIBIT B

 

[Letterhead of Company]

 

[Insert date]

 

Continental Stock
Transfer & Trust Company

1 State Street,
30th Floor

New York, New York 10004

Francis Wolf and Celeste Gonzalez

 

	 	Re:	Trust Account No. Termination Letter

 

Dear Mr. Wolf and Ms. Gonzalez:

 

Pursuant to Section
1(i) of the Investment Management Trust Agreement between Forum Merger IV Corporation (the “Company”)
and Continental Stock Transfer & Trust Company (the “Trustee”), dated as of March 17, 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 Charter, 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 __________1 as the record date the purpose of determining
the Public Stockholders 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 Charter. 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,
	 	 
	 	Forum Merger IV Corporation.
	 	 
	 	By:	 
	 	 	Name:	 
	 	 	Title:	 

 

		cc:	Jefferies LLC

 

 

 

		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 Charter.

 

    B-1

     

    

 

EXHIBIT C

 

[Letterhead of Company]

 

[Insert date]

 

Continental Stock
Transfer & Trust Company

1 State Street,
30th Floor

New York, New York 10004

Francis Wolf and
Celeste Gonzalez

 

	 	Re:	Trust Account Withdrawal Instruction

 

Dear Mr. Wolf and Ms. Gonzalez:

 

Pursuant to Section
1(j) of the Investment Management Trust Agreement between Forum Merger IV Corporation (the “Company”)
and Continental Stock Transfer & Trust Company (the “Trustee”), dated as of March 17, 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,
	 	 
	 	Forum Merger IV Corporation 
	 	 
	 	By:	 
	 	 	Name:	 
	 	 	Title:	 

 

		cc:	Jefferies LLC

 

    C-1

     

    

 

EXHIBIT D

 

[Letterhead of Company]

 

[Insert date]

 

Continental Stock
Transfer & Trust Company

1 State Street,
30th Floor

New York, New York 10004

Francis Wolf and 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 Forum Merger IV Corporation (the “Company”) and Continental Stock
Transfer & Trust Company (the “Trustee”), dated as of March 17, 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 Charter 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 Charter 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,
	 	 
	 	Forum Merger IV Corporation
	 	 
	 	By:	 
	 	 	Name:	 
	 	 	Title:	 

 

		cc:	Jefferies LLC

 

    D-1

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